FN Thomson Reuters Web of Science™ VR 1.0 PT J AU KOUSKY, VE HALPERT, MS AF KOUSKY, VE HALPERT, MS TI THE GLOBAL CLIMATE OF MARCH-MAY 1990 - AN ABNORMALLY WARM SEASON IN BOTH HEMISPHERES SO JOURNAL OF CLIMATE LA English DT Article RP KOUSKY, VE (reprint author), NOAA,NATL WEATHER SERV,NATL METEOROL CTR,CTR CLIMATE ANAL,WASHINGTON,DC 20233, USA. NR 0 TC 6 Z9 6 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD JAN PY 1991 VL 4 IS 1 BP 80 EP 105 DI 10.1175/1520-0442(1991)004<0080:TGCOMM>2.0.CO;2 PG 26 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EY797 UT WOS:A1991EY79700006 ER PT J AU ROSEN, HN MARTIN, JW AF ROSEN, HN MARTIN, JW TI SORPTION OF MOISTURE ON EPOXY AND ALKYD FREE FILMS AND COATED STEEL PANELS SO JOURNAL OF COATINGS TECHNOLOGY LA English DT Article ID ORGANIC COATINGS; WATER; PERFORMANCE; PERMEATION; ADHESION AB Sorption isotherm curves at 23-degrees-C were determined for alkyd and epoxy free films and coated steel panels as well as for alkyd "pocket" panels, consisting of an unadhered free film surrounding and enclosing the steel panel. The isotherms consist of an increasing linear portion to about 75% relative humidity (RH), followed by a rapidly rising nonlinear portion to 100% RH. A model assuming weak bonding forces between the paint film and water with microvoid condensation at high RH gave an excellent fit to the data. Transient sorption data on the approach to equilibrium conditions showed differences between alkyd and epoxy coatings. For alkyd films, surface boundary layer resistance was significant and sorption followed a Fickian model. For the epoxy coating, surface resistance was not significant and moisture movement was non-Fickian. RP ROSEN, HN (reprint author), US DEPT COMMERCE,NATL INST STANDARDS & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 33 TC 10 Z9 10 U1 0 U2 2 PU FEDERATION SOC COATING TECH PI BLUE BELL PA 492 NORRISTOWN ROAD, BLUE BELL, PA 19422 SN 0361-8773 J9 J COATING TECHNOL JI J. Coat. Technol. PD JAN PY 1991 VL 63 IS 792 BP 85 EP 93 PG 9 WC Chemistry, Applied; Materials Science, Coatings & Films SC Chemistry; Materials Science GA EV210 UT WOS:A1991EV21000003 ER PT J AU WILLIAMS, TM KOOYMAN, GL CROLL, DA AF WILLIAMS, TM KOOYMAN, GL CROLL, DA TI THE EFFECT OF SUBMERGENCE ON HEART-RATE AND OXYGEN-CONSUMPTION OF SWIMMING SEALS AND SEA LIONS SO JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMIC AND ENVIRONMENTAL PHYSIOLOGY LA English DT Article DE HEART RATE; OXYGEN CONSUMPTION; HARBOR SEAL; SEA LION ID PHOCA-VITULINA; OTTER LUNGS; ENERGETICS; WATER; LOCOMOTION; TEMPERATURE; EXERCISE; AIRWAYS; DRAG; HARP AB Respiratory, metabolic, and cardiovascular responses to swimming were examined in two species of pinniped, the harbor seal (Phoca vitulina) and the California sea lion (Zalophus californianus). 1. Harbor seals remained submerged for 82-92% of the time at swimming speeds below 1.2 m . s-1. At higher speeds, including simulated speeds above 1.4 m . s-1, the percentage of time spent submerged decreased, and was inversely related to body weight. In contrast, the percentage of time spent submerged did not change with speed for sea lions swimming from 0.5 m . s-1 to 4.0 m . s-1. 2. During swimming, harbor seals showed a distinct breathhold bradycardia and ventilatory tachycardia that were independent of swimming speed. Average heart rate was 137 beats.min-1 when swimming on the water surface and 50 beats.min-1 when submerged. A bimodal pattern of heart rate also occurred in sea lions, but was not as pronounced as in the seals. 3. The weighted average heart rate (WAHR), calculated from measured heart rate and the percentage time spent on the water surface or submerged, increased linearly with swimming speed for both species. The graded increase in heart rate with exercise load is similar to the response observed for terrestrial mammals. 4. The rate of oxygen consumption increased exponentially with swimming speed in both seals and sea lions. The minimum cost of transport calculated from these rates ranged from 2.3 to 3.6J . m-1 . kg-1, and was 2.5-4.0 times the level predicted for similarly-sized salmonids. Despite different modes of propulsion and physiological responses to swimming, these pinnipeds demonstrate similar transport costs. C1 SCRIPPS INST OCEANOG,PHYSIOL RES LAB,LA JOLLA,CA 92037. NATL MARINE FISHERIES SERV,SEATTLE,WA 98115. FU NHLBI NIH HHS [HL 06677, HL 17731] NR 40 TC 81 Z9 81 U1 3 U2 16 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0174-1578 J9 J COMP PHYSIOL B JI J. Comp. Physiol. B-Biochem. Syst. Environ. Physiol. PY 1991 VL 160 IS 6 BP 637 EP 644 DI 10.1007/BF00571261 PG 8 WC Physiology; Zoology SC Physiology; Zoology GA EZ530 UT WOS:A1991EZ53000006 PM 2045544 ER PT J AU EIDELMAN, N BROWN, WE MEYER, JL AF EIDELMAN, N BROWN, WE MEYER, JL TI THE EFFECT OF PYROPHOSPHATE CONCENTRATIONS ON CALCIUM-PHOSPHATE GROWTH ON WELL-CRYSTALLIZED OCTACALCIUM PHOSPHATE AND HYDROXYAPATITE SEED CRYSTALS SO JOURNAL OF CRYSTAL GROWTH LA English DT Article ID INORGANIC PYROPHOSPHATE; BONE; CALCIFICATION; MORPHOLOGY; SOLUBILITY; CARTILAGE; TISSUES; SERUM AB The comparative effects of 0.3, 1 and 3-mu-M P2O7(4-) concentrations on the growth of calcium phosphate on octacalcium phosphate (OCP) and on "well-crystallized" hydroxyapatite (OHAp) seeds were studied. The control growth rates (without P2O7(4-) were adjusted by weight or surface area of the seed crystals. The induction periods were longer with higher P2O7(4-) concentrations and longer on OCP seeds than on the OHAp seeds. However, the final growth rates were about the same on both kinds of seeds when equal concentrations of P2O7(4-) were used, suggesting that the same phase was growing on both kinds of seeds. The growth rates were faster when higher concentrations of OHAp seeds were used. The crystal growth on both OCP and OHAp seeds was accelerated when most of the labeled P2O7(4-) disappeared from the solution. The composition of the initial phase that grew on either OCP or OHAp seed crystals appears to be OCP or partially hydrolyzed OCP. These results lead to the conclusion that apparently OCP, but not OHAp, grew on OCP and OHAp seeds in the presence of P2O7(4-). C1 NCI,BETHESDA,MD 20892. RP EIDELMAN, N (reprint author), NATL INST STAND & TECHNOL,AMER DENT ASSOC HLTH FDN,PAFFENBARGER RES CTR,GAITHERSBURG,MD 20899, USA. NR 30 TC 4 Z9 4 U1 3 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD JAN PY 1991 VL 108 IS 1-2 BP 385 EP 393 DI 10.1016/0022-0248(91)90386-J PG 9 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA EW385 UT WOS:A1991EW38500041 ER PT J AU FARAHANI, M JOHNSTON, AD BOWEN, RL AF FARAHANI, M JOHNSTON, AD BOWEN, RL TI THE EFFECT OF CATALYST STRUCTURE ON THE SYNTHESIS OF A DENTAL RESTORATIVE MONOMER SO JOURNAL OF DENTAL RESEARCH LA English DT Article ID REACTIVITY AB The addition product of 2-hydroxyethyl methacrylate (HEMA) and pyromellitic dianhydride (PMDA), known as PMDM, is a mixture of two structural isomers. The para PMDM isomer-currently used in mediating adhesive bonding of restorative materials to hard tooth tissues-is a crystalline solid. The meta isomer is a liquid. In the synthesis of PMDM, the para isomer, which can be purified by crystallization, is usually present to the extent of only 50% of the product mixture. The effect of the amine catalyst structure was studied relative to its role in increasing the yield of the para isomer, either by a reduction in the amount of the meta isomer or by an increase in the extent of overall reaction. The chemical structure of the amine catalyst had an important role in the synthesis of PMDM and influenced the ratio of the isomers. Among aliphatic amines, especially noteworthy as catalysts that gave excellent yields of the para isomer in high purity were N,N-di-isopropyl-ethylamine and hexamethylenetetramine. RP FARAHANI, M (reprint author), NATL INST STAND & TECHNOL,AMER DENT ASSOC,PAFFENBARGER RES CTR,GAITHERSBURG,MD 20899, USA. FU NCRR NIH HHS [IS10 RR03266]; NIDCR NIH HHS [DE05129, DE09322] NR 16 TC 7 Z9 7 U1 0 U2 0 PU AMER ASSOC DENTAL RESEARCH PI ALEXANDRIA PA 1619 DUKE ST, ALEXANDRIA, VA 22314 SN 0022-0345 J9 J DENT RES JI J. Dent. Res. PD JAN PY 1991 VL 70 IS 1 BP 67 EP 71 DI 10.1177/00220345910700011101 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA ET570 UT WOS:A1991ET57000011 PM 1991863 ER PT J AU FULTON, MH SCOTT, GI AF FULTON, MH SCOTT, GI TI THE EFFECT OF CERTAIN INTRINSIC AND EXTRINSIC VARIABLES ON THE ACUTE TOXICITY OF SELECTED ORGANOPHOSPHORUS INSECTICIDES TO THE MUMMICHOG, FUNDULUS-HETEROCLITUS SO JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES LA English DT Article DE TOXICITY; INSECTICIDE; MIXTURES; MUMMICHOG; SALINITY; SEX ID RAINBOW-TROUT; SALMO-GAIRDNERI; ACEPHATE; CHLORPYRIFOS; FENVALERATE; BIOASSAYS AB The acute toxicity of two organophosphorus (OP) insecticides, azinphosmethyl and acephate, was evaluated in the mummichog, Fundulus heteroclitus. In addition, the effects of certain intrinsic (sex) and extrinsic (salinity and multiple toxicant interraction) variables on the toxic response were also investigated. Azinphosmethyl was by far the most toxic of the two OP insecticides with a 96h LC50 approximately 100,000 x lower than that for acephate. Slight sex differences were observed in the sensitivity of mummichogs to each of the OP insecticides with male fish being marginally more sensitive. Significant effects of low salinity stress were observed only with acephate exposure and, in this case, low salinity appeared to be slightly protective. In general, all of the insecticide mixtures (azinphosmethyl/endosulfan, azinphosmethyl/fenvalerate and acephate/fenvalerate) tested exhibited simple additive toxicity. C1 US NATL MARINE FISHERIES SERV,SE FISHERIES CTR,CHARLESTON,SC 29412. RP FULTON, MH (reprint author), UNIV S CAROLINA,SCH PUBL HLTH,DEPT ENVIRONM HLTH SCI,COLUMBIA,SC 29208, USA. NR 39 TC 12 Z9 13 U1 0 U2 10 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0360-1234 J9 J ENVIRON SCI HEAL B JI J. Environ. Sci. Health Part B-Pestic. Contam. Agric. Wastes PY 1991 VL 26 IS 5-6 BP 459 EP 478 DI 10.1080/03601239109372749 PG 20 WC Environmental Sciences; Public, Environmental & Occupational Health SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health GA GU550 UT WOS:A1991GU55000001 PM 1779123 ER PT J AU JOHNSON, LL CASILLAS, E MYERS, MS RHODES, LD OLSON, OP AF JOHNSON, LL CASILLAS, E MYERS, MS RHODES, LD OLSON, OP TI PATTERNS OF OOCYTE DEVELOPMENT AND RELATED CHANGES IN PLASMA 17-BETA ESTRADIOL, VITELLOGENIN, AND PLASMA CHEMISTRY IN ENGLISH SOLE PAROPHRYS-VETULUS GIRARD SO JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY LA English DT Article DE ENGLISH SOLE; ESTRADIOL; OOCYTE DEVELOPMENT; PLASMA CHEMISTRY; REPRODUCTION; VITELLOGENIN ID PSEUDOPLEURONECTES-AMERICANUS WALBAUM; SYNTHESIZING CELLULAR SITES; FLOUNDER PLATICHTYS-FLESUS; PLEURONECTES-PLATESSA L; TROUT SALMO-GAIRDNERI; RAINBOW-TROUT; SEXUAL-MATURATION; OVARIAN DEVELOPMENT; REPRODUCTIVE-CYCLE; SEASONAL-CHANGES AB Ovarian development was monitored in female English sole Parophrys vetulus Girard from three sites in Puget Sound: Sinclair Inlet and Port Susan, where fish are normally resident, and University Point, a known spawning area for English sole. Histological changes in ovary and liver as well as changes in plasma estradiol and vitellogenin levels, gonadosomatic index, hepatosomatic index, and calcium, phosphate, magnesium, glucose, triglycerides, total protein, and albumin concentrations in the plasma over the reproductive cycle were assessed. Vitellogenesis in female English sole began in the early fall, and spawning activity reached its peak in February. Oocyte development was group synchronous with two distinct clutches of oocytes in the maturing ovary. In general, the cytological and physiological changes which English sole underwent during the reproductive cycle were similar to those observed in other teleost species. However, certain distinctive features were observed, including a high prevalence of atresia of nonyolked oocytes. RP JOHNSON, LL (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,DIV ENVIRONM CONSERVAT,2725 MONTLAKE AVE E,SEATTLE,WA 98112, USA. NR 76 TC 46 Z9 50 U1 3 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0981 J9 J EXP MAR BIOL ECOL JI J. Exp. Mar. Biol. Ecol. PY 1991 VL 152 IS 2 BP 161 EP 185 DI 10.1016/0022-0981(91)90213-G PG 25 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GQ757 UT WOS:A1991GQ75700002 ER PT J AU MCTIGUE, TA ZIMMERMAN, RJ AF MCTIGUE, TA ZIMMERMAN, RJ TI CARNIVORY VS HERBIVORY IN JUVENILE PENAEUS-SETIFERUS (LINNAEUS) AND PENAEUS-AZTECUS (IVES) SO JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY LA English DT Article DE CARNIVORY; HERBIVORY; MARSH; PENAEID ID TEXAS SALT-MARSH; BROWN SHRIMP; FOOD-WEBS; NORTH-CAROLINA; TIDAL FLATS; ESTUARY; ASSIMILATION; MERGUIENSIS; MORTALITY; DENSITIES AB Postlarval Penaeus setiferus (Linnaeus), the white shrimp, and Penaeus aztecus (Ives), the brown shrimp, were reared for 24 days on vegetal, animal, and combination diets. Incremental weight change was used to compare shrimp growth rates among dietary treatments. Both species grew most quickly when fed a combination diet. Shrimp fed an animal diet also grew, but those fed vegetal diets either did not survive or grew very little. There were significantly differences between the relative responses of the two species. Brown shrimp fed an animal diet of Artemia grew significantly more than did the white shrimp. Furthermore, the diatom Skeletonema was capable of producing growth in white shrimp that was similar to that produced by an Artemia diet until Day 20, but shrimp fed this vegetal diet did not survive until Day 24. There was no difference in the growth between white and brown shrimp fed a combination diet. The differences between the two species in their ability to utilize plant and animal material can be related to the resources available at their times of immigration. RP MCTIGUE, TA (reprint author), NOAA,NATL MARINE FISHERIES SERV,GALVESTON LAB,4700 AVE U,GALVESTON,TX 77550, USA. NR 60 TC 38 Z9 39 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0981 J9 J EXP MAR BIOL ECOL JI J. Exp. Mar. Biol. Ecol. PY 1991 VL 151 IS 1 BP 1 EP 16 DI 10.1016/0022-0981(91)90011-K PG 16 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GG858 UT WOS:A1991GG85800001 ER PT J AU WILSON, CA DEAN, JM PRINCE, ED LEE, DW AF WILSON, CA DEAN, JM PRINCE, ED LEE, DW TI AN EXAMINATION OF SEXUAL DIMORPHISM IN ATLANTIC AND PACIFIC BLUE MARLIN USING BODY-WEIGHT, SAGITTAE WEIGHT, AND AGE ESTIMATES SO JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY LA English DT Article DE AGE; LIFE HISTORY; MARLIN; OTOLITH; SEXUAL DIMORPHISM ID OTOLITHS; VALIDATION AB Length, weight and otoliths of Atlantic and Pacific blue marlin (n = 436) were sampled between 1979 and 1983 in the Atlantic and Pacific Oceans from recreational landings. Otolith weight was highly variable within size classes, but the range of otolith weights was the same for males and females from both oceans. Although age estimates for Atlantic and Pacific blue marlin were not validated, males and females were estimated to be equally long-lived, reaching estimated ages of > 20 yr, yet females achieve much larger somatic sizes than males. Length was not useful in predicting estimated age. The sex-related size differences in Atlantic and Pacific blue marlin can be attributed to differential growth between sexes. Although males can grow to a maximum size of almost-equal-to 160 kg and females grow to at least 540 kg, longevity was similar for both sexes. The sex-related size differences in blue marlin are related to differential growth between sexes and are not due to differential mortality. Otolith weight was linearly related to estimated age and r2 ranged from 0.70 to 0.91 for Atlantic and Pacific blue marlin. This relationship demonstrates potential for estimating the age structure of the landings, if validation of the aging method can be achieved. C1 NOAA,SE FISHERIES CTR,MIAMI LAB,DIV OCEAN PELAG RESOURCES,MIAMI,FL. UNIV S CAROLINA,BELLE W BARUCH INST MARINE BIOL & COASTAL RES,DEPT BIOL,COLUMBIA,SC 29208. UNIV S CAROLINA,MARINE SCI PROGRAM,COLUMBIA,SC 29208. NR 39 TC 40 Z9 43 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0981 J9 J EXP MAR BIOL ECOL JI J. Exp. Mar. Biol. Ecol. PY 1991 VL 151 IS 2 BP 209 EP 225 DI 10.1016/0022-0981(91)90125-G PG 17 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GL789 UT WOS:A1991GL78900005 ER PT J AU JOHNSON, LL CASILLAS, E AF JOHNSON, LL CASILLAS, E TI THE USE OF PLASMA PARAMETERS TO PREDICT OVARIAN MATURATION STAGE IN ENGLISH SOLE PAROPHRYS-VETULUS GIRARD SO JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY LA English DT Article DE DISCRIMINANT ANALYSIS; ENGLISH SOLE; ESTRADIOL; OVARIAN DEVELOPMENT; PLASMA PARAMETER; REPRODUCTIVE CYCLE ID PLEURONECTES-PLATESSA L; NORTHERN ANCHOVY; ENGRAULIS-MORDAX; SEASONAL-CHANGES; WINTER FLOUNDER; SERUM CHEMISTRY; RAINBOW-TROUT; PUGET-SOUND; PLAICE; LIVER AB Oocyte development and associated changes in condition factor and levels of estradiol, vitellogenin [measured as alkali-labile protein-associated phosphate (ALP)], calcium, magnesium, phosphate, total protein, triglycerides, and glucose in plasma were monitored in female English sole Parophrys vetulus Girard from Puget Sound throughout the 1985-86 and 1986-87 spawning seasons. Discriminant analysis was applied to data collected in 1985-86 to select a suite of parameters that could accurately differentiate between female sole in different stages of ovarian maturation. On the basis of plasma levels of ALP, estradiol, total protein, and triglycerides, fish in five histologically determined ovarian maturation stages (i.e., regressed, previtellogenic, vitellogenic, spawning, and spawned out) could be distinguished from each other with almost-equal-to 70% accuracy. When the model was used to classify female sole collected in 1986-87, ovarian maturation stage was predicted correctly in 68% of the fish examined, a significantly greater proportion than the 20% which would be expected on the basis of chance alone. This method for predicting ovarian developmental stage would be particularly useful in laboratory studies in which it is necessary to assess the stage of gonadal development without sacrificing test animals, and could also be applicable in field studies designed to monitor reproductive cycles of marine species. RP JOHNSON, LL (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,DIV ENVIRONM CONSERVAT,2725 MONTLAKE BLVD E,SEATTLE,WA 98112, USA. NR 47 TC 11 Z9 12 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0981 J9 J EXP MAR BIOL ECOL JI J. Exp. Mar. Biol. Ecol. PY 1991 VL 151 IS 2 BP 257 EP 270 DI 10.1016/0022-0981(91)90128-J PG 14 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GL789 UT WOS:A1991GL78900008 ER PT J AU MALLETT, JC BEGHIAN, LE METCALF, TG KAYLOR, JD AF MALLETT, JC BEGHIAN, LE METCALF, TG KAYLOR, JD TI POTENTIAL OF IRRADIATION TECHNOLOGY FOR IMPROVED SHELLFISH SANITATION SO JOURNAL OF FOOD SAFETY LA English DT Article ID HEPATITIS-A-VIRUS; AEROMONAS-HYDROPHILA AB Ionizing radiation is shown capable of serving as an effective sanitizing treatment improving the sanitary quality of shellfish and providing an increased margin of safety for shellfish consumers. Co-60 irradiation of the hard-shelled clam, Mercenaria mercenaria, and the oyster, Crassostrea virginica, significantly reduced virus carriage numbers without unduly affecting shellfish survival rates or desirable organoleptic qualities. A D10 value of 2 kGy was determined for depletion of hepatitis A virus in clams and oysters as measured by in situ hybridization fluorescent foci and cytopathology enumeration methods. A D10 value of 2.4 kGy was determined for depletion of rotavirus SA11 in clams and oysters as measured by a plaque forming unit enumeration method. Study results showed ionizing radiation capable of providing an extra, highly effective safe-guard of shellfish sanitary quality when combined with traditional depuration treatment. Data drawn from other studies is introduced which shows D10 values as low as 1.0 kGy effectively eliminate Vibrio cholerae, and V. parahemolyticus, from shellfish. C1 BAYLOR COLL MED,DIV MOLEC VIROL,HOUSTON,TX 77030. NATL MARINE FISHERIES SERV,NE FISHERIES CTR,GLOUCESTER LAB,GLOUCESTER,MA 01930. RP MALLETT, JC (reprint author), UNIV LOWELL,DEPT BIOL SCI,RADIAT LAB,1 UNIV AVE,LOWELL,MA 01854, USA. NR 28 TC 29 Z9 31 U1 0 U2 5 PU FOOD NUTRITION PRESS INC PI TRUMBULL PA 6527 MAIN ST, P O BOX 374, TRUMBULL, CT 06611 SN 0149-6085 J9 J FOOD SAFETY JI J. Food Saf. PY 1991 VL 11 IS 4 BP 231 EP 245 DI 10.1111/j.1745-4565.1991.tb00055.x PG 15 WC Biotechnology & Applied Microbiology; Food Science & Technology SC Biotechnology & Applied Microbiology; Food Science & Technology GA GC657 UT WOS:A1991GC65700001 ER PT J AU WEKELL, JC BARNETT, H AF WEKELL, JC BARNETT, H TI NEW METHOD FOR ANALYSIS OF TRIMETHYLAMINE OXIDE USING FERROUS SULFATE AND EDTA SO JOURNAL OF FOOD SCIENCE LA English DT Article ID NURSE SHARK AB In the analysis of trimethylamine oxide (TMAO) in fish tissues, an equimolar mixture of ferrous sulfate (FeSO4) and disodium ethylenediaminetetraacetic acid (EDTA) (0.1 M) in acetate buffer (0.8 M, pH 4.5) was found to be a satisfactory replacement for titanium chloride (TiCl3). The TiCl3 method for TMAO was usually conducted at 80-degrees-C; the FeSO4-EDTA reaction at 50-degrees-C appeared complete in 5 min and yielded comparable results. The use of an acetate buffer alleviated any interference from the trichloroacetic acid used for extraction of TMAO and trimethylamine (TMA) from fish tissue. RP WEKELL, JC (reprint author), NOAA,NW FISHERIES CTR,DIV UTILIZAT RES,2725 MONTLAKE BLVD E,SEATTLE,WA 98112, USA. NR 25 TC 47 Z9 48 U1 1 U2 9 PU INST FOOD TECHNOLOGISTS PI CHICAGO PA SUITE 300 221 N LASALLE ST, CHICAGO, IL 60601-1291 SN 0022-1147 J9 J FOOD SCI JI J. Food Sci. PD JAN-FEB PY 1991 VL 56 IS 1 BP 132 EP & DI 10.1111/j.1365-2621.1991.tb07993.x PG 0 WC Food Science & Technology SC Food Science & Technology GA EX949 UT WOS:A1991EX94900038 ER PT J AU PASQUEL, LJD BABBITT, JK AF PASQUEL, LJD BABBITT, JK TI ISOLATION AND PARTIAL CHARACTERIZATION OF A NATURAL ANTIOXIDANT FROM SHRIMP (PANDALUS-JORDANI) SO JOURNAL OF FOOD SCIENCE LA English DT Article AB The nature of a natural antioxidant present in shrimp was investigated. From several solvents used in the extraction process, ethanol proved most effective. A diethy eher extract exhibited no antioxidant activity. The compound responsible for the antioxidant effect was present in very low concentrations in its natural source. The chemical characteristics and chromatographic properties suggested that it was a polyhydroxylated derivative of an aromatic amino acid. C1 NW FISHERIES SCI CTR, UTILIZAT RES LAB, KODIAK, AK 99615 USA. OREGON STATE UNIV, COASTAL MARINE EXPT STN, SEAFOOD LAB, ASTORIA, OR 97103 USA. NR 17 TC 12 Z9 12 U1 0 U2 0 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0022-1147 EI 1750-3841 J9 J FOOD SCI JI J. Food Sci. PD JAN-FEB PY 1991 VL 56 IS 1 BP 143 EP 145 PG 3 WC Food Science & Technology SC Food Science & Technology GA EX949 UT WOS:A1991EX94900041 ER PT J AU DEHANT, V WAHR, JM AF DEHANT, V WAHR, JM TI THE RESPONSE OF A COMPRESSIBLE, NONHOMOGENEOUS EARTH TO INTERNAL LOADING - THEORY SO JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY LA English DT Article ID MANTLE CONVECTION; SYSTEM MG2SIO4-FE2SIO4; PHASE-TRANSITIONS; LAYERED MANTLE; DYNAMIC EARTH; MODEL; BOUNDARY; PRESSURE; OLIVINE; SPINEL AB Convective flow inside the mantle will cause topography at the Core Mantle Boundary (CMB). The amplitude and shape of the topography depend on details of the flow pattern, and on the Earth's rheology. The topography can be modeled by using seismic tomography results. When lateral variations density are inferred, they are used as internal loads in a viscous Earth. So far, all models have assumed the Earth is incompressible and composed of homogeneous layers. In this paper, we describe a formalism for computing mantle flow, geoid perturbations, and boundary deformation (at the surface or at the CMB) due to internal loading by lateral density heterogeneities for a spherically-symmetric Earth that is compressible and that has radially dependent viscosity and density. We assume the Earth is neutrally stable below the lithosphere. The solution vector, as well as the density anomalies, are expanded as sums of spherical harmonics with coefficients that depend on radius. Green's functions, responses to a unit mass load, are computed for each order of the spherical harmonics. These functions can be convolved with tomography results inside the mantle to get the geoid or the CMB topography, for example. C1 UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309. UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP DEHANT, V (reprint author), OBSERV ROYAL BELGIQUE,3 AVE CIRCULAIRE,B-1180 BRUSSELS,BELGIUM. NR 40 TC 26 Z9 26 U1 0 U2 0 PU TERRA SCIENTIFIC PUBL CO PI TOKYO PA 302 JIYUGAOKA-KOMATSU BLDG 24-17 MIDORIGAOKA 2-CHOME, TOKYO TOKYO 152, JAPAN SN 0022-1392 J9 J GEOMAGN GEOELECTR JI J. Geomagn. Geoelectr. PY 1991 VL 43 IS 2 BP 157 EP 178 PG 22 WC Geosciences, Multidisciplinary SC Geology GA FE914 UT WOS:A1991FE91400005 ER PT J AU REID, GC AF REID, GC TI SOLAR IRRADIANCE VARIATIONS AND GLOBAL OCEAN TEMPERATURES SO JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY LA English DT Article; Proceedings Paper CT 7TH QUADRENNIAL SOLAR TERRESTRIAL SYMP / 27TH COSPAR MEETING CY JUL 25-30, 1990 CL THE HAGUE, NETHERLANDS SP COMM SPACE RES, INT ASSOC GEOMAGNETISM & AERON, INT ASSOC METEOROL & ATMOSPHER PHYS, INT ASTRON UNION, INT UNION RADIO SCI, INT UNION PURE & APPL PHYS ID VARIABILITY AB Long-term (decades to centuries) variations in the surface temperature of the earth may have been caused, at least in part, by variations in the sun's total irradiance (the solar "constant"). The observed similarity between the envelope of the 11-year solar-activity cycle and a time series of globally averaged sea-surface temperatures over the past 130 years lends some credibility to this possibility, and suggests that long-term variations in irradiance may accompany the long-term variations in solar activity. This connection has been explored with the aid of a one-dimensional model of the thermal response of the global ocean to variations in surface heating, and the inferred relationship has been extended backward in time to deduce a total irradiance at the time of the Maunder Minimum of solar activity about 1% less than the present value. The underlying cause for a connection between solar activity and luminosity on long time scales is unknown, and presents a major challenge for solar physics. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP REID, GC (reprint author), NOAA,ENVIRONM RES LAB,AERON LAB,BOULDER,CO 80303, USA. NR 18 TC 3 Z9 3 U1 1 U2 2 PU TERRA SCIENTIFIC PUBL CO PI TOKYO PA 2003 SANSEI JIYUGAOKA HAIMU, 5-27-19 OKUSAWA, SETAGAYA-KU, TOKYO 158, JAPAN SN 0022-1392 J9 J GEOMAGN GEOELECTR JI J. Geomagn. Geoelectr. PY 1991 VL 43 SU S BP 795 EP 801 PN 2 PG 7 WC Geosciences, Multidisciplinary SC Geology GA JW706 UT WOS:A1991JW70600020 ER PT J AU DONNELLY, RF AF DONNELLY, RF TI SOLAR UV SPECTRAL IRRADIANCE VARIATIONS SO JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY LA English DT Article; Proceedings Paper CT 7TH QUADRENNIAL SOLAR TERRESTRIAL SYMP / 27TH COSPAR MEETING CY JUL 25-30, 1990 CL THE HAGUE, NETHERLANDS SP COMM SPACE RES, INT ASSOC GEOMAGNETISM & AERON, INT ASSOC METEOROL & ATMOSPHER PHYS, INT ASTRON UNION, INT UNION RADIO SCI, INT UNION PURE & APPL PHYS ID ULTRAVIOLET IRRADIANCE; NM; MONITOR; FLUX AB Recent measurements of the relative temporal variations of solar UV radiation are reviewed. The long-term increase in solar UV irradiance during the rise of solar cycle 22 through April 1990 is comparable to the decrease from the solar cycle 21 peak in late 1981 to the 1986 minimum. Although several marked differences occur in the short-term or solar-rotational variations of the UV and Ottawa 10.7 cm radio flux (F10), the shape of the long-term solar-cycle increase of F10 is quite similar to that of UV enhancements. RP DONNELLY, RF (reprint author), NOAA,ENVIRONM RES LAB,SPACE ENVIRONM LAB,BOULDER,CO 80303, USA. NR 15 TC 50 Z9 50 U1 0 U2 0 PU TERRA SCIENTIFIC PUBL CO PI TOKYO PA 2003 SANSEI JIYUGAOKA HAIMU, 5-27-19 OKUSAWA, SETAGAYA-KU, TOKYO 158, JAPAN SN 0022-1392 J9 J GEOMAGN GEOELECTR JI J. Geomagn. Geoelectr. PY 1991 VL 43 SU S BP 835 EP 842 PN 2 PG 8 WC Geosciences, Multidisciplinary SC Geology GA JW706 UT WOS:A1991JW70600025 ER PT J AU ALLEN, JH AF ALLEN, JH TI TRENDS IN THE ACQUISITION AND ACCESSIBILITY OF LONG-TERM SOLAR-TERRESTRIAL DATA SO JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY LA English DT Article; Proceedings Paper CT 7TH QUADRENNIAL SOLAR TERRESTRIAL SYMP / 27TH COSPAR MEETING CY JUL 25-30, 1990 CL THE HAGUE, NETHERLANDS SP COMM SPACE RES, INT ASSOC GEOMAGNETISM & AERON, INT ASSOC METEOROL & ATMOSPHER PHYS, INT ASTRON UNION, INT UNION RADIO SCI, INT UNION PURE & APPL PHYS AB Solar-Terrestrial Physics (STP) programs involving global data acquisition have characterized international science in the 20th Century and made necessary the creation of a system of national and international data centers. Under aegis of the International Council of Scientific Unions, the World Data Center (WDC) system was established in 1957 to provide a voluntary mechanism for the collection, copying, exchange, and dissemination of geophysical and solar data taken by International Geophysical Year projects. At first, WDCs collected mainly analog data recorded by monitoring arrays of IGY instruments. In the three decades since IGY, techniques shifted from mainly analog recording to digital, and data centers shifted from mainly servicing analog images on film and publishing summary tables to providing numerical data on digital media for computer analysis. In the 1960s, WDCs began to provide collection and dissemination of information and derived data products as well as original data. During the late 1970s, merged multi-component data sets were created on central host computers to support joint analysis projects by groups of scientists and individuals. A major trend in the late 1980's is acquisition and merger of large digital data sets from ground-based and satellite sensors. The data are made available on high density computer media (particularly CD-ROM optical discs) together with summary analog images and access software for browsing or moving data from the storage media to other computers. Tables and images are still published in the 1990s and are especially needed in places with limited access to personal computers and lacking easy connections to on-line central data collections. The cumulative amount of STP data held by WDC-A has grown substantially since 1957. However, each year since the early 1960s has shown a decline in the global coverage of key types of data as monitoring networks diminished. The rise in cost to process large digital databases produced by modem instruments and the high cost of labor-intensive analog data reduction has contributed to the annual decline of some types of data deposited with the WDCs. Finally, there is a situation that is difficult to quantify; namely, some key geophysical observing sites are located in countries that seldom use their output. During periods of economic stress these facilities receive low priority for continued operation. Under current world conditions, it is difficult for some nations to justify the continued expense to continue operating basic monitoring sites, e.g., magnetic observatories, ionosondes, and other instruments that produce essential records needed as input for general models, planetary indices, or other often-used, basic global data products. RP ALLEN, JH (reprint author), NOAA,NATL ENVIRONM SATELLITE DATA & INFORMAT SERV,NGDC,WASHINGTON,DC 20233, USA. NR 7 TC 0 Z9 0 U1 0 U2 0 PU TERRA SCIENTIFIC PUBL CO PI TOKYO PA 2003 SANSEI JIYUGAOKA HAIMU, 5-27-19 OKUSAWA, SETAGAYA-KU, TOKYO 158, JAPAN SN 0022-1392 J9 J GEOMAGN GEOELECTR JI J. Geomagn. Geoelectr. PY 1991 VL 43 SU S BP 911 EP 920 PN 2 PG 10 WC Geosciences, Multidisciplinary SC Geology GA JW706 UT WOS:A1991JW70600033 ER PT J AU COFFEY, HE AF COFFEY, HE TI GEOMAGNETIC AND SOLAR DATA SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Note RP COFFEY, HE (reprint author), NOAA,WORLD DATA CTR SOLAR TERR PHYS,BOULDER,CO 80302, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD JAN 1 PY 1991 VL 96 IS A1 BP 297 EP 297 DI 10.1029/90JA02574 PG 1 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EQ741 UT WOS:A1991EQ74100028 ER PT J AU COFFEY, HE AF COFFEY, HE TI GEOMAGNETIC AND SOLAR DATA SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Note RP COFFEY, HE (reprint author), NOAA,WORLD DATA CTR SOLAR TERR PHYS,BOULDER,CO 80302, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD JAN 1 PY 1991 VL 96 IS A1 BP 299 EP 299 DI 10.1029/90JA02648 PG 1 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EQ741 UT WOS:A1991EQ74100029 ER PT J AU CONLEY, DJ SCAVIA, D AF CONLEY, DJ SCAVIA, D TI SIZE STRUCTURE OF PARTICULATE BIOGENIC SILICA IN LAKE-MICHIGAN SO JOURNAL OF GREAT LAKES RESEARCH LA English DT Article DE SILICA; DIATOMS; PARTICLE SIZE; LAKE MICHIGAN ID NEPHELOID LAYER; PHYTOPLANKTON; DYNAMICS; COMMUNITIES; FRACTIONS; PLANKTON AB Recent data suggest that chemical estimates of biogenic silica in the Laurentian Great Lakes include large fractions of non-living fragmented diatoms. Therefore, measurements of particulate biogenic silica (BSi) in different size classes (0.2-0.4-mu-m, 0.4-10-mu-m, 10-20-mu-m, and > 20-mu-m) were made from April through July 1987 in southeastern Lake Michigan to assess the importance of diatom fragments to chemical estimates of BSi. During the spring diatom bloom, the period of maximum BSi concentrations, the greatest percentage of BSi (86%) was found in the microplankton size fraction (> 10-mu-m) associated with living diatoms. By contrast, following thermal stratification, when dissolved silica was depleted from epilimnetic waters, particles < 10-mu-m in size dominated and averaged 52% of total BSi. This fraction contained mostly fragmented diatom frustules. Our estimate of non-living diatoms is consistent with previous studies showing that, following the spring diatom bloom, 40% to 60% of total diatom abundance is non-living. Seasonal decreases in epilimnetic BSi, declining from 11.3-mu-mol L-1 in late April to an average of 1.96-mu-mol L-1 during the stratified period, were due primarily to loss of the largest size fraction (> 20-mu-m) which decreased from 76% of total BSi in April to 36% in July. BSi < 10-mu-m varied by less than a factor of two throughout the study period, averaging 3.23 +/- 2.79-mu-mol L-1. Particles 0.2-0.4-mu-m averaged 0.277 +/- 0.178-mu-mol L-1. These particles are probably produced through frustule dissolution, seetle slowly, and may lead to enhanced BSi recycling rates. C1 NOAA,GREAT LAKES ENVIRONM RES LAB,ANN ARBOR,MI 48105. OI Scavia, Donald/0000-0002-2784-8269 NR 22 TC 3 Z9 4 U1 0 U2 5 PU INT ASSOC GREAT LAKES RES PI ANN ARBOR PA 2200 BONISTEEL BLVD, ANN ARBOR, MI 48109-2099 SN 0380-1330 J9 J GREAT LAKES RES JI J. Gt. Lakes Res. PY 1991 VL 17 IS 1 BP 18 EP 24 PG 7 WC Environmental Sciences; Limnology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA FJ254 UT WOS:A1991FJ25400003 ER PT J AU NALEPA, TF MANNY, BA ROTH, JC MOZLEY, SC SCHLOESSER, DW AF NALEPA, TF MANNY, BA ROTH, JC MOZLEY, SC SCHLOESSER, DW TI LONG-TERM DECLINE IN FRESH-WATER MUSSELS (BIVALVIA, UNIONIDAE) OF THE WESTERN BASIN OF LAKE ERIE SO JOURNAL OF GREAT LAKES RESEARCH LA English DT Article DE MUSSELS; MOLLUSKS; BENTHIC FAUNA; LAKE ERIE; POLLUTION EFFECTS AB Long-term trends in the abundance of unionids in the western basin of Lake Erie were examined from data collected at 17 stations in 1961, 1972, and 1982. The mean number of unionids at these stations declined over this time period, decreasing from 10 m-2 in 1961, to 6 m-2 in 1972, down to 4 m-2 in 1982. This decline in abundance was reflected in the decrease in the number of stations where mussels were found; unionids were found at 16 of the 17 stations in 1961, but at only 6 stations in 1982. Reasons for the decrease in the unionid population are not generally apparent, but are probably related to the decline in water quality and periods of low oxygen levels over the time period of the surveys. C1 NATL FISHERIES RES CTR GREAT LAKES,ANN ARBOR,MI 48105. UNIV CALIF BERKELEY,SANITARY ENGN & ENVIRONM HLTH LAB,RICHMOND,CA 94804. N CAROLINA STATE UNIV,DEPT ZOOL,RALEIGH,NC 27695. RP NALEPA, TF (reprint author), GREAT LAKES ENVIRONM RES LAB,2205 COMMONWEALTH BLVD,ANN ARBOR,MI 48105, USA. NR 23 TC 37 Z9 38 U1 0 U2 4 PU INT ASSOC GREAT LAKES RES PI ANN ARBOR PA 2200 BONISTEEL BLVD, ANN ARBOR, MI 48109-2099 SN 0380-1330 J9 J GREAT LAKES RES JI J. Gt. Lakes Res. PY 1991 VL 17 IS 2 BP 214 EP 219 PG 6 WC Environmental Sciences; Limnology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA FZ328 UT WOS:A1991FZ32800008 ER PT J AU HAWLEY, N AF HAWLEY, N TI PRELIMINARY-OBSERVATIONS OF SEDIMENT EROSION FROM A BOTTOM RESTING FLUME SO JOURNAL OF GREAT LAKES RESEARCH LA English DT Article DE SEDIMENT EROSION; EROSION RATES; FLUMES; SHEAR STRESS ID DEVICE AB A small portable flume was designed and constructed to measure in situ erosion velocities. Preliminary results from deployments in Lake Michigan, Lake Superior, and Lake Ontario show that the flume can produce and measure the velocities required to erode fine-grained material from the lake bottom. Shear stresses required for erosion (calculated from the measured velocities) varied from 0.03 to 1.34 dynes/cm2. As the flow velocity increases, erosion appears to occur as discrete episodes rather than continuously. Before flume results can be used to predict a sediment's resistance to erosion, both extensive measurements of sediment properties and comparisons of flume results to naturally-occurring erosion events are needed. RP HAWLEY, N (reprint author), GREAT LAKES ENVIRONM RES LAB,2205 COMMONWEALTH BLVD,ANN ARBOR,MI 48105, USA. NR 8 TC 11 Z9 12 U1 0 U2 0 PU INT ASSOC GREAT LAKES RES PI ANN ARBOR PA 2200 BONISTEEL BLVD, ANN ARBOR, MI 48109-2099 SN 0380-1330 J9 J GREAT LAKES RES JI J. Gt. Lakes Res. PY 1991 VL 17 IS 3 BP 361 EP 367 PG 7 WC Environmental Sciences; Limnology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GK775 UT WOS:A1991GK77500008 ER PT J AU LORENZ, RC MONACO, ME HERDENDORF, CE AF LORENZ, RC MONACO, ME HERDENDORF, CE TI MINIMUM LIGHT REQUIREMENTS FOR SUBSTRATE COLONIZATION BY CLADOPHORA-GLOMERATA SO JOURNAL OF GREAT LAKES RESEARCH LA English DT Article DE WATER QUALITY; FILAMENTOUS ALGAE; LAKE ERIE; CLADOPHORA; LIGHT AB Cladophora glomerata, an attached filamentous green alga that inhabits streams and lakes in North America, can produce large quantities of standing crop in areas of the Laurentian Great Lakes. An integrated laboratory and field survey approach was used to define the minimum light intensity required to support substrate colonization by Cladophora. In a laboratory light gradient experiment, negligible growth was observed at light intensities less than 29-mu-Em-2S-1. Field surveys of the vertical distribution of Cladophora were undertaken in western Lake Erie to determine if the minimum laboratory light intensity was also observed in nature. Surveys were conducted utilizing SCUBA techniques during the peak biomass periods in late June over 3 years. The depth of Cladophora colonization varied from site to site depending on light attenuation, with the maximum depth corresponding to areas having the highest Secchi transparencies and lowest light extinction coefficients. Paired observations of photosynthetically active radiation (PAR) profiles and Cladophora deepest depth of colonization indicated that average daily intensities below 28-mu-Em-2S-1 were limiting to Cladophora colonization. A model is presented that predicts the maximum depth of Cladophora colonization based on the laboratory minimum light level and site-specific field light attenuation coefficients. C1 NOAA,DIV OCEAN ASSESSMENTS,ROCKVILLE,MD 20850. OHIO STATE UNIV,DEPT ZOOL,COLUMBUS,OH 43210. RP LORENZ, RC (reprint author), COLUMBUS DIV WATER,WATER QUAL ASSURANCE LAB,COLUMBUS,OH 43215, USA. NR 22 TC 15 Z9 16 U1 0 U2 3 PU INT ASSOC GREAT LAKES RES PI ANN ARBOR PA 2200 BONISTEEL BLVD, ANN ARBOR, MI 48109-2099 SN 0380-1330 J9 J GREAT LAKES RES JI J. Gt. Lakes Res. PY 1991 VL 17 IS 4 BP 536 EP 542 PG 7 WC Environmental Sciences; Limnology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA GZ449 UT WOS:A1991GZ44900012 ER PT J AU GARBOCZI, EJ BENTZ, DP AF GARBOCZI, EJ BENTZ, DP TI DIGITAL-SIMULATION OF THE AGGREGATE-CEMENT PASTE INTERFACIAL ZONE IN CONCRETE SO JOURNAL OF MATERIALS RESEARCH LA English DT Article AB Researchers using backscattered scanning electron microscopy, along with quantitative image analysis techniques, have clearly demonstrated the existence of a highly porous interfacial region between aggregate particles and the cement paste matrix in ordinary portland cement concrete. This paper presents the results of a digital-image-based simulation model of this interfacial zone. A dissolution-diffusion-reaction-like cycle of hydrating cement particles is directly simulated using cement particles packed around a simple nonreactive aggregate particle. The model is two-dimensional, as we are comparing to experimental results obtained on two-dimensional images of polished sections. The qualitative features seen experimentally, such as large amounts of porosity and calcium hydroxide in the interfacial zone, are accurately reproduced. A new mechanism, one-sided growth, is proposed, along with the more usual particle-packing ideas, as an explanation of the origin of the characteristic features of the interfacial zone. RP GARBOCZI, EJ (reprint author), NATL INST STAND & TECHNOL,DIV BLDG MAT,226-B348,GAITHERSBURG,MD 20899, USA. NR 14 TC 50 Z9 58 U1 1 U2 3 PU MATERIALS RESEARCH SOCIETY PI PITTSBURGH PA 9800 MC KNIGHT ROAD SUITE 327, PITTSBURGH, PA 15237 SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD JAN PY 1991 VL 6 IS 1 BP 196 EP 201 DI 10.1557/JMR.1991.0196 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA FB958 UT WOS:A1991FB95800027 ER PT J AU KAUFMAN, V MARTIN, WC AF KAUFMAN, V MARTIN, WC TI WAVELENGTHS AND ENERGY-LEVEL CLASSIFICATIONS OF MAGNESIUM SPECTRA FOR ALL STAGES OF IONIZATION (MG-I THROUGH MG-XII) SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE ATOMIC ENERGY LEVELS; ATOMIC IONS; ATOMIC SPECTRA; ATOMIC WAVELENGTHS; ATOMIC WAVE-NUMBERS; MAGNESIUM AB Wavelengths and their classifications are compiled for the spectra of magnesium. Selections of data are based on the critical evaluations in the compilation of energy levels by Martin and Zalubas [1980, J. Phys. Chem. Ref. Data 9, 1-58], with some updating from the more recent literature. All classifications have been verified with predictions made by differencing the energy levels. In addition to the spectra ordered by ionization stage, two finding lists are included, one containing Mg I to Mg III and the other Mg IV to Mg XII. RP KAUFMAN, V (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 61 Z9 61 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 1 BP 83 EP 152 PG 70 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FC872 UT WOS:A1991FC87200002 ER PT J AU WING, T AF WING, T TI CHEMICAL KINETIC DATA-BASE FOR COMBUSTION CHEMISTRY .5. PROPENE SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE ALLYL RADICAL; COMBUSTION; DATA BASE; GAS KINETICS; PROPENE; RATE EXPRESSIONS AB This publication contains evaluated and estimated data on the kinetics of reactions involving propene and allyl radical and various small inorganic and organic species which are of importance for the proper understanding of the early stages of propene and the intermediate stages of propane and isobutane combustion and pyrolysis. It is meant to be used in conjunction with the kinetic data given in earlier publications, which is of direct pertinence to the understanding of methane, ethane, methanol, propane and isobutane pyrolysis and combustion, but which also contains a large volume of data that are applicable to the propene system. The temperature range covered is 300-2500 K and the density range 1 x 10(16) to 1 x 10(21) molecules cm-3. RP WING, T (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. NR 0 TC 0 Z9 0 U1 1 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 2 BP 221 EP 273 PG 53 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FQ144 UT WOS:A1991FQ14400001 ER PT J AU FRIEND, DG INGHAM, H ELY, JF AF FRIEND, DG INGHAM, H ELY, JF TI THERMOPHYSICAL PROPERTIES OF ETHANE SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE CORRELATION; DENSITY; EQUATION OF STATE; ETHANE; HEAT CAPACITY; PHASE BOUNDARY; PRESSURE; SPEED OF SOUND; THERMAL CONDUCTIVITY; THERMOPHYSICAL PROPERTIES; TRANSPORT PROPERTIES; VIRIAL COEFFICIENTS; VISCOSITY AB New correlations for the thermophysical properties of fluid ethane are presented. The correlations are based on a critical evaluation of the available experimental data and have been developed to represent these data over a broad range of the state variables. Estimates for the accuracy of the equations and comparisons with measured properties are given. The reasons for this new study of ethane include significant new and accurate data and improvements in the correlating functions which allow increased accuracy of the correlations - especially in the extended critical region. Short tables of the thermophysical properties of ethane are included. This study complements an earlier study of methane and uses the same correlating equations and format. For the thermodynamic properties, a classical equation for the molar Helmholtz energy, which contains terms multiplied by the exponential of the quadratic and quartic powers of the system density, is used. The resulting equation of state is accurate from about 90 K to 625 K for pressures less than 70 MPa and was developed by considering PVT, second virial coefficient, heat capacity, and sound speed data. Tables of coefficients and equations are presented to allow the calculation of these and other thermodynamic quantities. Ancillary equations for properties along the liquid-vapor phase boundary, which are consistent with the equation of state and lowest order scaling theory, are also given. For the viscosity of ethane, a contribution based on a theoretical fit of low-density data is combined with an empirical representation of the excess contribution. The approximate range of the resulting correlation is 90 K to 500 K for pressures less than 60 MPa. The correlation for the thermal conductivity includes a theoretically based expression for the critical enhancement; the range for the resulting correlation is about 90 K to 600 K for pressures below 70 MPa. RP FRIEND, DG (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,BOULDER,CO 80303, USA. NR 0 TC 159 Z9 161 U1 0 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 2 BP 275 EP 347 PG 73 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FQ144 UT WOS:A1991FQ14400002 ER PT J AU ARCHER, DG AF ARCHER, DG TI THERMODYNAMIC PROPERTIES OF THE NABR + H2O SYSTEM SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Review DE ACTIVITY COEFFICIENT; APPARENT MOLAR PROPERTIES; AQUEOUS; COMPRESSIBILITY; DEHYDRATION; DENSITY; ENTHALPY; EQUATION OF STATE; EXPANSIVITY; FORMATION PROPERTIES; GIBBS ENERGY; HEAT CAPACITY; OSMOTIC COEFFICIENT; PARTIAL MOLAR PROPERTIES; SODIUM BROMIDE; SODIUM BROMIDE DIHYDRATE; SOLUBILITY; THERMODYNAMICS; VAPOR PRESSURE AB Equations that described the thermodynamic properties of the NaBr + H2O system were obtained from a fit to experimental results for this system. The experimental results included in the fit spanned the range of temperature of approximately 260 to 623 K and the range of pressure from the vapor pressure of the solution to 150 MPa. New equations and/or values for the following properties are given in the present work: 1) the change in chemical potential with respect to temperature and pressure for NaBr(cr), valid from 200 to 900 K, 2) DELTA(f)G(m)degrees and DELTA(f)H(m)degrees for formation from the elements for NaBr(cr) for 298.15 K and 0.1 MPa, 3) DELTA(f)G(m)degrees and DELTA(f)H(m)degrees from the elements, as well as S(m)degrees and C(p,m)degrees, all for 298.15 K, 0.1 MPa for NaBr.2H2O(cr), 4) the change in chemical potential for both NaBr and H2O in NaBr(aq) as a function of temperature, pressure, and molality, valid from 260 to 600 K and from the vapor pressure of the solution to 150 MPa. RP ARCHER, DG (reprint author), NATL INST STAND & TECHNOL,CTR ELECTROLYTE DATA,GAITHERSBURG,MD 20899, USA. NR 0 TC 108 Z9 108 U1 1 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 3 BP 509 EP 555 PG 47 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FY151 UT WOS:A1991FY15100002 ER PT J AU PHELPS, AV AF PHELPS, AV TI CROSS-SECTIONS AND SWARM COEFFICIENTS FOR NITROGEN-IONS AND NEUTRALS IN N2 AND ARGON IONS AND NEUTRALS IN AR FOR ENERGIES FROM 0.1 EV TO 10 KEV SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE ARGON; CHARGE TRANSFER; CROSS SECTION; DATA COMPILATION; DISSOCIATION; ELECTRONIC EXCITATION; ELECTRON PRODUCTION; EMISSION; FAST NEUTRALS; IONIZATION; IONS; MOMENTUM TRANSFER; NITROGEN; ROTATIONAL EXCITATION; SWARM COEFFICIENT; VIBRATIONAL EXCITATION AB Graphical and tabulated data and the associated bibliography are presented for cross sections for elastic, excitation, and ionization collisions of N+, N2+, N, and N2 with N2 and for Ar+ and Ar with Ar for laboratory energies from 0.1 eV to 10 keV. Where appropriate, drift velocities and reaction or excitation coefficients are calculated from the cross sections and recommended for use in analyses of swarm experiments and electrical discharges. In the case of N+ in N2, cross sections for momentum transfer, charge transfer, electronic excitation, and electron production are recommended. Drift velocity calculations predict runaway for N+ in N2 for electric field to gas density ratios E/n greater than 4.3 X 10(3) Td, where 1 Td (townsend) = 10(-21) V m2. For N2+ in N2, the cross sections include those for N+ and N3+ formation, electronic excitation, and electron production. Drift velocities and average cross sections are calculated for E/n greater-than-or-equal-to 500 Td. In the case of N in N2, only cross sections for momentum transfer are recommended. For N2 in N2, cross sections for momentum transfer, electronic excitation, and electron production are recommended. Collisions of electronically excited states with N2 are not included. For Ar+ in Ar, cross sections for charge transfer, electronic excitation, and electron production are recommended. For Ar in Ar, cross sections for momentum transfer, electronic excitation, and electron production are recommended. RP PHELPS, AV (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 0 TC 376 Z9 389 U1 2 U2 39 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 3 BP 557 EP 573 PG 17 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FY151 UT WOS:A1991FY15100003 ER PT J AU CROVETTO, R AF CROVETTO, R TI EVALUATION OF SOLUBILITY DATA OF THE SYSTEM CO2-H2O FROM 273-K TO THE CRITICAL-POINT OF WATER SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE CO2 DISSOLUTION IN WATER; SOLUBILITY; HENRY CONSTANT; HIGH TEMPERATURE CO2 SOLUBILITIES IN WATER AB This critical review covers the existing literature on the solubility of CO2 in water from 273 K to the critical temperature of the solvent (647 K). Results of the evaluation are expressed in the form of fitting equations for the infinite dilution Henry's constant, k0, as a function of the density of the solvent, and also as an explicit function of the temperature. The pressure effect on the solubility is considered in the formulation. Different equations of state were used for the description of the CO2-H2O vapor phase and the effects on the calculated Henry's constant values are analyzed. The "best" solubility estimates are presented in smoothed tabular form. RP CROVETTO, R (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899, USA. NR 0 TC 104 Z9 105 U1 2 U2 33 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 3 BP 575 EP 589 PG 15 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA FY151 UT WOS:A1991FY15100004 ER PT J AU TSANG, W HERRON, JT AF TSANG, W HERRON, JT TI CHEMICAL KINETIC DATA-BASE FOR PROPELLANT COMBUSTION .1. REACTIONS INVOLVING NO, NO2, HNO, HNO2, HCN AND N2O SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE COMBUSTION; ELEMENTARY REACTIONS; KINETICS; NITROGEN OXIDES; PROPELLANTS AB This publication contains evaluated chemical kinetic data on a number of single step elementary reactions involving small polyatomic molecules which are of importance in propellant combustion. The work involves the collection and evaluation of mechanistic and rate information and the use of various methods for the extrapolation and estimation of rate data where information does not exist. The conditions covered range from 500-2500 K and 10(17)-10(22) particles/cm3. The results of the first years effort lead to coverage of all pertinent reactions of the following species; H, H-2, H2O, O, OH, HCHO, CHO, CO, NO, NO2, HNO, HNO2, HCN, and N2O. RP TSANG, W (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. NR 0 TC 310 Z9 313 U1 4 U2 32 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 4 BP 609 EP 663 PG 55 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA GD154 UT WOS:A1991GD15400001 ER PT J AU KAUFMAN, V MARTIN, WC AF KAUFMAN, V MARTIN, WC TI WAVELENGTHS AND ENERGY-LEVEL CLASSIFICATIONS FOR THE SPECTRA OF ALUMINUM (AL-I THROUGH AL-XIII) SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE ALUMINUM; ATOMIC ENERGY LEVELS; ATOMIC IONS; ATOMIC SPECTRA; ATOMIC WAVELENGTHS; ATOMIC WAVE-NUMBERS AB Wavelengths and their classifications have been compiled for the spectra of the atom and all positive ions of aluminum (Z = 13). The selections of data are based on the compilations of energy levels by Martin and Zalubas [1979, J. Phys. Chem. Ref. Data 8, 817 - 864], with some updating from the more recent literature. Wavelengths (or wavenumbers) calculated from the differences of the energy levels are given along with the observed values for all classified lines; these calculated wavelengths should in general be more accurate than the observed values wherever the two values differ significantly. Calculated wavelengths are also given for a number of lines that have not yet been observed, including some important forbidden transitions. The most complete data are given in separate tables for the different spectra. No limitation has been imposed on the wavelength range of the classified lines, except for the omission of x-ray transitions in the neutral atom. Two finding lists are also included, one for Al I through Al III and the other for Al IV through Al XIII. RP KAUFMAN, V (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 53 Z9 53 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 5 BP 775 EP 858 PG 84 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA GL511 UT WOS:A1991GL51100001 ER PT J AU SUGAR, J MUSGROVE, A AF SUGAR, J MUSGROVE, A TI ENERGY-LEVELS OF KRYPTON, KR-I THROUGH KR-XXXVI SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Article DE ATOMIC; ENERGY LEVELS; IONS; KRYPTON; SPECTRA AB The energy levels of the krypton atom, in all stages of ionization for which experimental data are available, have been compiled. No data has yet been published for Kr XI through Kr XVII. For H-like krypton very accurate calculated level values are compiled. In all, data for 29 spectra are given. Experimental g-factors are included for Kr I and Kr II. Calculated percentage compositions of levels are given for 12 ions. A value for the ionzation energy of each ion, either experimental or theoretical, is included. RP SUGAR, J (reprint author), NATL INST STAND & TECHNOL,PHYS LAB,DIV ATOM PHYS,GAITHERSBURG,MD 20899, USA. NR 0 TC 104 Z9 111 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PY 1991 VL 20 IS 5 BP 859 EP 915 PG 57 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA GL511 UT WOS:A1991GL51100002 ER PT J AU FATIADI, AJ AF FATIADI, AJ TI NEW CHEMICAL AND STEREOCHEMICAL APPLICATIONS OF ORGANOIRON COMPLEXES SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Review DE APPLICATIONS; ASYMMETRIC SYNTHESIS; CHEMISTRY; CHIRAL AUXILIARIES; ENANTIOMERS; IRON-CARBENE COMPLEXES; ORGANOIRON COMPLEXES; OVERVIEW; IRON IN BIOLOGICAL SYSTEMS; STEREOSELECTIVE REACTIONS ID CARBON BOND FORMATION; TRANSITION-METAL-COMPLEXES; RAY CRYSTAL-STRUCTURE; BETA-LACTAM SYNTHESIS; BENZYLIDENE-TRANSFER-REACTIONS; CYCLO-ADDITION REACTIONS; ALPHA-DIIMINE COMPLEXES; DIELS-ALDER REACTIONS; M = FE; ALLYLTRICARBONYLIRON LACTONE COMPLEXES AB The objective of this review is to provide a current overview of the rapidly developing chemistry of organometallic complexes and particularly organoiron complexes useful in asymmetric and stereoselective reactions. Also covered are stereoselective reactions of alpha, beta-unsaturated acyl ligands bound to the chiral auxiliary [(eta-5-C5H5) Fe(CO)(PPh3)] and new applications of organoiron complexes in the synthesis of natural products. The mechanistic aspects and stabilizing effects of the Fe(CO)3 group for alkenes or conjugated dienes are discussed. A brief summary of recent work on the special role of iron in biological reactions is also included. RP FATIADI, AJ (reprint author), NATL INST STAND & TECHNOL, CTR ANALYT CHEM, DIV ORGAN ANALYT RES, BIOTECHN GRP, GAITHERSBURG, MD 20899 USA. NR 1625 TC 34 Z9 34 U1 0 U2 8 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD JAN-FEB PY 1991 VL 96 IS 1 BP 1 EP 113 DI 10.6028/jres.096.002 PG 113 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FD895 UT WOS:A1991FD89500002 PM 28184103 ER PT J AU ROTH, RS AF ROTH, RS TI INTERNATIONAL-CONFERENCE ON THE CHEMISTRY OF ELECTRONIC CERAMIC MATERIALS - JACKSON, WY - AUGUST 17-22, 1990 SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Editorial Material RP ROTH, RS (reprint author), NATL INST STAND & TECHNOL, DIV CERAM, GAITHERSBURG, MD 20899 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD JAN-FEB PY 1991 VL 96 IS 1 BP 115 EP 117 DI 10.6028/jres.096.003 PG 3 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FD895 UT WOS:A1991FD89500003 PM 28184105 ER PT J AU REEDER, DJ AF REEDER, DJ TI STEREOCHEMICAL APPLICATIONS OF ORGANOIRON COMPLEXES - FOREWORD SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Editorial Material RP REEDER, DJ (reprint author), NATL INST STAND & TECHNOL, DIV ORGAN ANALYT RES, BIOANALYT TECHN GRP, GAITHERSBURG, MD 20899 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD JAN-FEB PY 1991 VL 96 IS 1 BP U1 EP U1 DI 10.6028/jres.096.001 PG 1 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FD895 UT WOS:A1991FD89500001 ER PT J AU RASBERRY, SD AF RASBERRY, SD TI STANDARD REFERENCE MATERIALS - NBS-ASTM COOPERATION SO JOURNAL OF TESTING AND EVALUATION LA English DT Article DE STANDARD REFERENCE MATERIAL (SRM); METALS; COOPERATIVE RESEARCH; INDUSTRY-GOVERNMENT COOPERATION; METAL ANALYSIS; METAL STANDARDIZATION; ANALYTICAL CHEMISTRY; CLASSICAL CHEMISTRY AB This paper reviews the cooperation between ASTM and the National Bureau of Standards (NBS) in a Research Associate Program to certify and distribute metal Standard Reference Materials (SRMs). Since the initiation of the program in 1975, more than 200 SRM types have been completed and made available to the technical community. Besides describing the cooperative effort, the paper summarizes the status of the metal SRM program at NBS and shows how SRMs, in general, integrate with the standards-writing activities of ASTM. While this shared activity has been very successful over the past 12 years-in fact, a model for industry-government technical cooperation-a difficult technical problem must now be resolved to assure future success. That problem is a growing shortage of classical chemists who are expert in the analytical chemical metrology needed to certify SRMs. A proposal is made that the joint work of ASTM and NBS be expanded to include addressing this serious shortage. RP RASBERRY, SD (reprint author), NBS,OFF STAND REFERENCE MAT,GAITHERSBURG,MD 20899, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC TESTING MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DR, W CONSHOHOCKEN, PA 19428-2959 SN 0090-3973 J9 J TEST EVAL JI J. Test. Eval. PD JAN PY 1991 VL 19 IS 1 BP 56 EP 59 PG 4 WC Materials Science, Characterization & Testing SC Materials Science GA FF345 UT WOS:A1991FF34500009 ER PT J AU DOVIAK, RJ CHEN, SS CHRISTIE, DR AF DOVIAK, RJ CHEN, SS CHRISTIE, DR TI A THUNDERSTORM-GENERATED SOLITARY WAVE OBSERVATION COMPARED WITH THEORY FOR NONLINEAR-WAVES IN A SHEARED ATMOSPHERE SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID INTERNAL GRAVITY-WAVES; BOUNDARY-LAYER; MORNING GLORY; EVOLUTION; SOLITONS; FLUIDS; FLOWS; BORES; RADAR AB The theory of internal nonlinear waves in a motionless medium is extended to waves in sheared flow to provide a basis for the interpretation of atmospheric solitary waves. It is shown that if the Scorer parameter is zero in a semi infinite upper region, the integro-differential equation [i.e., the Benjamin-Davis-Ono (BDO) equation] defining the evolution of nonlinear waves in sheared flow is independent of shear and stability in the upper layer. A new type of evolution model is presented, based on the numerical solution of the BDO equation, for the generation of solitary waves by a thunderstorm moving at supercritical speeds. The results of a thorough study of observations of a thunderstorm-generated solitary wave are presented in detail. These observations show that some of the storm's outflow, which was denser than the environment through which the wave propagated, was trapped in the interior of the wave. It is hypothesized that the Coriolis force then caused this denser air to flow along the axis of the wave away from the storm's southern flank for distances in excess of 100 km. Analysis reveals that the temporarily trapped recirculating air in the leading solitary wave is gradually deposited along the ground, forming an advancing shallow layer of denser air behind the wave. The derived wave parameters are then compared with theory. A new type of analysis, based on the separation of the wind change due to vertical transport of horizontal momentum from the observed wind perturbations, results in improved agreement between weakly nonlinear theory and observations. This analysis supports the deduction that wave energy propagates along straight rays, parallel to the plane of recirculating flow, but oblique to the curved wave front. The failure of weakly nonlinear theory to account for all the observed wave characteristics is shown to be caused by the presence of recirculating flow. Comparison with numerical results for strongly nonlinear waves shows reasonably good agreement for all the wave characteristics, except wave speed, which is significantly less than that predicted when wave amplitudes are large. Finally, relations are developed that govern the minimum wave amplitude threshold required for the propagation of solitary waves in waveguides bordered by weakly stratified sheared flow. C1 NOAA,ENVIRONM RES LABS,NATL SEVERE STORMS LAB,NORMAN,OK 73069. NR 51 TC 33 Z9 33 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD JAN 1 PY 1991 VL 48 IS 1 BP 87 EP 111 DI 10.1175/1520-0469(1991)048<0087:ATGSWO>2.0.CO;2 PG 25 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EY013 UT WOS:A1991EY01300006 ER PT J AU FELDMAN, U INDELICATO, P SUGAR, J AF FELDMAN, U INDELICATO, P SUGAR, J TI MAGNETIC DIPOLE LINE FROM U-LXXI GROUND-TERM LEVELS PREDICTED AT 3200-A SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID MULTICONFIGURATIONAL DIRAC-FOCK; FORBIDDEN LINES; TOKAMAK PLASMAS; 2-ELECTRON IONS AB Magnetic dipole (M1) lines above 2500 angstrom are convenient diagnostic tools for high-energy, low-density plasmas such as those of tokamaks. We found a sequence of such lines arising from transitions between two levels of the 3d4 5D ground term of titaniumlike ions. From Nd XXXIX to U LXXI the calculated wavelengths range from 3557 to 3200 angstrom with ionization energies of 2.7 to 8.2 keV. These lines have transition rates of 480 to 262 sec-1. The calculations were made with the multiconfiguration Dirac-Fock code of Desclaux. C1 NIST,GAITHERSBURG,MD 20899. RP FELDMAN, U (reprint author), USN,RES LAB,EO HULBERT CTR SPACE RES,WASHINGTON,DC 20375, USA. RI Indelicato, Paul/D-7636-2011 OI Indelicato, Paul/0000-0003-4668-8958 NR 14 TC 55 Z9 55 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3224 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JAN PY 1991 VL 8 IS 1 BP 3 EP 5 DI 10.1364/JOSAB.8.000003 PG 3 WC Optics SC Optics GA EQ815 UT WOS:A1991EQ81500001 ER PT J AU SUGAR, J KAUFMAN, V ROWAN, WL AF SUGAR, J KAUFMAN, V ROWAN, WL TI SPECTRA OF THE P-I ISOELECTRONIC SEQUENCE FROM CO-XIII TO MO-XXVIII SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID ENERGY-LEVELS; COPPER; MOLYBDENUM; IONS; CU; TRANSITIONS; WAVELENGTHS; PLASMA; LINES; ATOMS AB Phosphoruslike spectra Cu XV to Mo XXVIII have been identified in tokamak- and laser-produced plasmas in the wavelength range of 83 to 163 angstrom. These were obtained with the TEXT tokamak at the University of Texas and the 1-GW Nd:glass laser at the National Institute of Standards and Technology, using 2.2- and 10.7-m grazing-incidence spectrographs, respectively. Wavelength measurements were made with an uncertainty of +/- 0.005 angstrom. All the classified lines arise from the 3s(2)3p(3)-3s(2)3p(2)3d array. They were identified through detailed comparisons with Hartree-Fock calculations of wavelengths and relative intensities along the isoelectronic sequence. All spectra from Cu to Mo were observed, except for Rb and Sr, whose wavelengths are predicted by interpolation with an uncertainty of +/- 0.02 angstrom. By means of previously observed magnetic-dipole (M1) lines within the 3s(2)3p(3) ground configuration and comparisons with published Dirac-Fock calculations, all the energy levels of this configuration were determined with an uncertainty of +/- 10 to 100 cm-1 for Co to Mo. These levels were used to predict all the M1 wavelengths. A correction to the Co XIV ground configuration is made by means of a previously published list of M1 lines. C1 UNIV TEXAS,FUS RES CTR,AUSTIN,TX 78712. RP SUGAR, J (reprint author), NIST,GAITHERSBURG,MD 20899, USA. NR 21 TC 14 Z9 14 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3224 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JAN PY 1991 VL 8 IS 1 BP 22 EP 26 DI 10.1364/JOSAB.8.000022 PG 5 WC Optics SC Optics GA EQ815 UT WOS:A1991EQ81500005 ER PT J AU SCHINN, GW HAN, XML GALLAGHER, A AF SCHINN, GW HAN, XML GALLAGHER, A TI PRODUCTION AND DIAGNOSIS OF A HIGHLY SPIN-POLARIZED NA BEAM SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID SODIUM; NA-23-BEAM; ATOMS AB We describe optically pumping a beam of sodium atoms to > 96% m(S0 and > 92% m(S), m(I) state selection. (We have accurately measured the population of every m(S), M(I) state in the optically pumped beam.) For the optical pumping both ground hyperfine states are pumped, using single-mode cw dye-laser radiation tuned to the 3S1/2-3P1/2 transition that is phase modulated in a LiTaO3 crystal to produce first-order sidebands at approximately the 1772-MHz hyperfine splitting of the ground state. The z-directed optical pumping is performed in a z-directed magnetic field of approximately 5 G. The state-selected atoms then move, in approximately 1 cm, into an approximately 200 G, z-directed field. The downstream probe laser beam is scanned through the 3S1/2 (m(S), m(I)) --> 3P3/2 (m(S)', m(I)) transitions, which are spectroscopically resolved at 200 G, and the fluorescence intensities portray the residual populations in each of the eight 3S1/2 states. C1 UNIV COLORADO,NIST,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NR 16 TC 11 Z9 12 U1 1 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3224 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JAN PY 1991 VL 8 IS 1 BP 169 EP 173 DI 10.1364/JOSAB.8.000169 PG 5 WC Optics SC Optics GA EQ815 UT WOS:A1991EQ81500024 ER PT J AU WALKER, BAM HAGENLOCKER, BE DOUGLAS, VK TARAPCHAK, SJ WARD, PA AF WALKER, BAM HAGENLOCKER, BE DOUGLAS, VK TARAPCHAK, SJ WARD, PA TI NUCLEOTIDE RESPONSES OF HUMAN NEUTROPHILS SO LABORATORY INVESTIGATION LA English DT Article DE ATP; PURINERGIC; DESENSITIZATION; GTP ID COATED SHEEP ERYTHROCYTES; PLATELET-RELEASE PRODUCTS; RAT MAST-CELLS; PYRIMIDINE NUCLEOTIDES; CALCIUM MOBILIZATION; CHEMOTACTIC PEPTIDES; ADENINE-NUCLEOTIDES; PHOSPHOLIPASE-C; NADPH OXIDASE; HL60 CELLS AB Since human polymorphonuclear neutrophils (PMN) exposed to ATP or its poorly hydrolyzable analogue, adenosine-5'-O-(3-thiotriphosphate) (ATP-gamma-S), respond with increases in intracellular calcium and enhanced O2- responses to the chemotactic peptide N'-formyl-Met-Leu-Phe (fMLP), we systematically evaluated responses of PMN to various nucleotides. P2X and P2Y receptor agonists, 2-methylthioadenosine triphosphate and beta, gamma-methyleneadenosine triphosphate, failed to induce increases in intracellular calcium and did not densensitize PMN to increases in intracellular calcium induced by ATP-gamma-S. Since it has been suggested that P2Z receptor occupancy with the ATP4- species caused nonselective increases in cell permeability, the ability of ATP to induce increases in intracellular calcium was evaluated in the presence and absence of extracellular Ca2+ and Mg2+. In the presence of these cations, 5-fold greater concentrations of ATP were required. The effects of ATP4- were not associated with changes in cell membrane permeability. This suggests that ATP4- is the active species but that its effect on PMN is not linked to a nonselective increase in permeability of the cell membrane. With respect to responses of PMN to purine and pyrimidine nucleotides as defined by increases in intracellular calcium, the rank order of potency for the nucleotides was ATP = UTP > ATP-gamma-S greater-than-or-equal-to ITP > GTP greater-than-or-equal-to CTP. These responses were blocked by pretreatment of PMN with pertussis toxin. Prior exposure of PMN to ATP-gamma-S blocked cellular responses (calcium increases) to these nucleotides but not to fMLP. Likewise, exposure of PMN to any nucleotides blocked subsequent cellular responses to ATP-gamma-S but not to fMLP. These data support the concept that nucleotide responses of PMN utilize either a common receptor or a common signal transduction pathway involving a guanine nucleotide binding protein in events leading to elevations in intracellular calcium. Nucleotide interaction with PMN does not follow the established pattern of responses associated with P2X or P2Y purinergic receptor occupancy. C1 UNIV MICHIGAN,SCH MED,DEPT PATHOL,BOX 0602,1301 CATHERINE ST,ANN ARBOR,MI 48109. NOAA,GREAT LAKES ENVIRONM RES LAB,ANN ARBOR,MI. FU NHLBI NIH HHS [HL-31963, HL-28442] NR 38 TC 37 Z9 37 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0023-6837 J9 LAB INVEST JI Lab. Invest. PD JAN PY 1991 VL 64 IS 1 BP 105 EP 112 PG 8 WC Medicine, Research & Experimental; Pathology SC Research & Experimental Medicine; Pathology GA EV366 UT WOS:A1991EV36600014 PM 1846654 ER PT J AU HSU, SM LIM, DS WANG, YS MUNRO, RG AF HSU, SM LIM, DS WANG, YS MUNRO, RG TI CERAMICS WEAR MAPS - CONCEPT AND METHOD DEVELOPMENT SO LUBRICATION ENGINEERING LA English DT Article AB Wear of a material is difficult to describe in definitive terms since it is a function of many variables. This paper discusses the basis for a proposed wear analysis method that graphically represents wear of a material sliding on itself in the form of three dimensional wear maps. These maps, properly utilized, can aid in the development of new materials, materials selection and design of components. Wear of material can be divided into three categories: dry sliding, sliding under a non-reactive fluid and sliding under a reactive fluid. Within each category, wear is partially determined by the speed, load, temperature and time. To establish a comparative basis for wear measurements, parameters such as surface roughness, contact geometry and machine vibrations need to be constant or consistently controlled. Under these conditions, wear coefficients can be plotted against speed and load, speed and temperature, speed and time, load and temperature and load and time. If the time variance (fatigue) is small, then the system can be simplified into three maps. If the room temperature wear is further defined as a baseline, then one map (speed and load) per category describes the wear characteristics of the material under the arbitrarily standarized conditions. To develop this concept, wear tests under constant load were conducted to generate the necessary data. It was found that the number of individual tests required to implement this method was large, hence impractical. Therefore, a step loading procedure was used to significantly reduce the number of necessary measurements. Comparisons of results from the two procedures suggest that the wear maps concept, coupled with the step loading procedure, is a feasible method for delineating the wear resistance characteristics of a material in a reasonable amount of time and effort. RP HSU, SM (reprint author), NATL INST STANDARDS & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 31 Z9 38 U1 2 U2 3 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JAN PY 1991 VL 47 IS 1 BP 49 EP 54 PG 6 WC Engineering, Mechanical SC Engineering GA ET617 UT WOS:A1991ET61700006 ER PT J AU WANG, YS HSU, SM MUNRO, RG AF WANG, YS HSU, SM MUNRO, RG TI CERAMICS WEAR MAPS - ALUMINA SO LUBRICATION ENGINEERING LA English DT Article AB Quantitative wear maps provide a comprehensive, systematic basis for understanding the fundamental aspects of the wear of materials. Each wear map consists of regions whose boundaries are determined by the contact stresses, sliding speeds, the average interface temperature, the asperity temperatures, and the micromechanical properties of the surfaces. Therefore, each region probably has a dominant mechanism of wear. As external conditions (environmental, lubricant, and contaminants) change, the boundaries shift and the dominant wear mechanism changes. The wear characteristics of an alumina are described by a set of three dimensional wear maps under dry air, paraffin oil (non-reactive fluid), and water (reactive fluid). From these maps, major regions of different levels of wear are identified. Two-dimensional contour maps developed from the wear maps further define regions of comparable wear. Detailed wear mechanism studies in each region are then conducted. Wear mechanism maps are developed to describe the dominant mechanism in each region. RP WANG, YS (reprint author), NATL INST STANDARDS & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 35 Z9 38 U1 0 U2 2 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JAN PY 1991 VL 47 IS 1 BP 63 EP 69 PG 7 WC Engineering, Mechanical SC Engineering GA ET617 UT WOS:A1991ET61700007 ER PT J AU ONATE, FC AF ONATE, FC TI FOOD AND DAILY RATION OF THE ROCK SOLE LEPIDOPSETTA-BILINEATA (PLEURONECTIDAE) IN THE EASTERN BERING SEA SO MARINE BIOLOGY LA English DT Article ID FISH AB A total of 129 specimens of Lepidopsetta bilineata (Ayres) were collected in the eastern Bering Sea (57-degrees 02'-58-degrees 11'N; 161-degrees 58'-164-degrees 38'W) between 28 August and 7 September 1984. Examination of its stomach and intestine contents revealed that polychaetes, gammarid amphipods and echiuroids constitute the bulk of its diet. Prey type is related to fish size. Juveniles consume more mobile prey, such as small crustaceans (gammarid amphipods, cumaceans, carideans), while adults, although still continuing to feed on gammarid amphipods, preferentially feed on infaunal organisms such as polychaetes, echiuroids and mollusks. Some prey, such as echinoderms, fishes and urochordates, were encountered only in stomachs, which resulted in a higher index of feeding diversity for this organ. Rock sole feeds primarily during daylight hours, peaking at dusk. Its daily ration was estimated as 0.49, 1.12, and 1.61% of fish body weight from contents of stomach, intestine, and stomach plus intestine, respectively. C1 NOAA,NATL MARINE FISHERIES SERV,NW & ALASKA FISHERIES CTR,SEATTLE,WA 98115. NR 23 TC 2 Z9 3 U1 1 U2 4 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0025-3162 J9 MAR BIOL JI Mar. Biol. PY 1991 VL 108 IS 2 BP 185 EP 191 DI 10.1007/BF01344332 PG 7 WC Marine & Freshwater Biology SC Marine & Freshwater Biology GA FD135 UT WOS:A1991FD13500002 ER PT J AU CASILLAS, E MISITANO, D JOHNSON, LL RHODES, LD COLLIER, TK STEIN, JE MCCAIN, BB VARANASI, U AF CASILLAS, E MISITANO, D JOHNSON, LL RHODES, LD COLLIER, TK STEIN, JE MCCAIN, BB VARANASI, U TI INDUCIBILITY OF SPAWNING AND REPRODUCTIVE SUCCESS OF FEMALE ENGLISH SOLE (PAROPHRYS-VETULUS) FROM URBAN AND NONURBAN AREAS OF PUGET SOUND, WASHINGTON SO MARINE ENVIRONMENTAL RESEARCH LA English DT Article ID RAINBOW-TROUT; HEPATIC NEOPLASMS; TOXIC-CHEMICALS; FISH; SEDIMENTS; ENZYMES; LESIONS; VITELLOGENIN; MATURATION; FLOUNDER AB Vitellogenic female English sole were sampled from four areas in Puget Sound that varied in the nature and degree of chemical contamination. The fish were then injected with an analogue of Luteinizing Hormone Releasing Hormone (LHRH) in the laboratory to induce spawning. Ability to spawn, time to spawn, larval viability, and initial concentrations of plasma estradiol and vitellogenin [measured as alkaline-labile protein-associated phosphate (ALP)] were assessed. In general, low initial plasma estradiol and ALP concentrations and subsequent reproductive impairment were most common in English sole from sites where levels of sediment contaminants [e.g. polycyclic aromatic hydrocarbons and poly-chlorinated biphenyls (PCB)] and measures of contaminant exposure in fish (hepatic PCB concentrations and aryl hydrocarbon hydroxylase activity) were highest, and where pollution-associated liver lesions in fish (i.e. neoplasms, foci of cellular alterations, specific degeneration/necrosis, and storage disorders) were most prevalent. Additionally, the time to spawn was found to be inversely correlated with initial plasma estradiol concentrations. Spawning success was found to be positively correlated with initial plasma estradiol and ALP concentrations as determined by logistic regression analysis; nearly 62% of the variabilityin the spawning response could be accounted for by these factors. Fertilization success was also found to be positively correlated with initial ALP concentrations, whereas fish captured from contaminated sites produced lower proportions of normal larvae. Overall, these findings suggest that contaminant exposure may result in poor reproductive success of female English sole. This may be related to a hormone imbalance or to slower ovarian development (non-synchronous timing) of female English sole from contaminated sites. RP CASILLAS, E (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,DIV ENVIRONM CONSERVAT,2725 MONTLAKE BLVD E,SEATTLE,WA 98112, USA. OI Rhodes, Linda/0000-0003-4995-9426 NR 54 TC 66 Z9 70 U1 2 U2 8 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0141-1136 J9 MAR ENVIRON RES JI Mar. Environ. Res. PY 1991 VL 31 IS 2 BP 99 EP 122 DI 10.1016/0141-1136(91)90022-Z PG 24 WC Environmental Sciences; Marine & Freshwater Biology; Toxicology SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Toxicology GA GA655 UT WOS:A1991GA65500002 ER PT J AU KRAHN, MM YLITALO, GM JOSS, J CHAN, SL AF KRAHN, MM YLITALO, GM JOSS, J CHAN, SL TI RAPID, SEMIQUANTITATIVE SCREENING OF SEDIMENTS FOR AROMATIC-COMPOUNDS USING SONIC EXTRACTION AND HPLC FLUORESCENCE ANALYSIS SO MARINE ENVIRONMENTAL RESEARCH LA English DT Article ID LIQUID-CHROMATOGRAPHY; MARINE WATERS; HYDROCARBONS; SPECTROSCOPY; METABOLITES; OIL AB Awareness of contamination from anthropogenic sources in the environment has led to a demand for increasing numbers of analyses to evaluate the extent of the problem. As a result, there is a need for rapid, low cost methods to screen for contaminants in environmental samples to allow priorities to be set for the more expensive, detailed analyses. In this paper, we report a method to screen sediments for aromatic hydrocarbons. The method uses sonic extraction followed by size-exclusion HPLC with fluorescence detection to estimate the concentrations of fluorescent aromatic compounds in sediment samples. The concentrations of aromatic compounds determined by the screening method are highly correlated with the sum of the aromatic hydrocarbons determined by a standard analytical method which uses HPLC cleanup and GC/MS quantitation. RP KRAHN, MM (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES SCI CTR,DIV ENVIRONM CONSERVAT,2725 MONTLAKE BLVD,SEATTLE,WA 98112, USA. NR 19 TC 29 Z9 30 U1 1 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0141-1136 J9 MAR ENVIRON RES JI Mar. Environ. Res. PY 1991 VL 31 IS 3 BP 175 EP 196 DI 10.1016/0141-1136(91)90010-6 PG 22 WC Environmental Sciences; Marine & Freshwater Biology; Toxicology SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Toxicology GA GL089 UT WOS:A1991GL08900002 ER PT J AU BARLOW, J BOVENG, P AF BARLOW, J BOVENG, P TI MODELING AGE-SPECIFIC MORTALITY FOR MARINE MAMMAL POPULATIONS SO MARINE MAMMAL SCIENCE LA English DT Article DE MORTALITY ESTIMATION; LONGEVITY; SURVIVAL RATES; LESLIE MATRIX; DEMOGRAPHY; CALLORHINUS; PHOCENA; STENELLA ID EASTERN TROPICAL PACIFIC; STENELLA-ATTENUATA; LIFE-TABLES; SPOTTED DOLPHINS; DYNAMICS; RATES; PORPOISE; SIZE AB A method is presented for estimating age-specific mortality based on minimal information: a model life table and an estimate of longevity. This approach uses expected patterns of mammalian survivorship to define a general model of age-specific mortality rates. One such model life table is based on data for northern fur seals (Callorbinus ursinus) using Siler's (1979) 5-parameter competing risk model. Alternative model life tables are based on historical data for human females and on a published model for Old World monkeys. Survival rates for a marine mammal species are then calculated by scaling these models by the longevity of that species. By using a realistic model (instead of assumming constant mortality), one can see more easily the real biological limits to population growth. The mortality estimation procedure is illustrated with examples of spotted dolphins (Stenella attenuata) and harbor porpoise (Phocoena phocoena). RP BARLOW, J (reprint author), NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,POB 271,LA JOLLA,CA 92038, USA. NR 42 TC 75 Z9 78 U1 6 U2 29 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD JAN PY 1991 VL 7 IS 1 BP 50 EP 65 DI 10.1111/j.1748-7692.1991.tb00550.x PG 16 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EX930 UT WOS:A1991EX93000005 ER PT J AU BENGTSON, JL BOVENG, P FRANZEN, U HAVE, P HEIDEJORGENSEN, MP HARKONEN, TJ AF BENGTSON, JL BOVENG, P FRANZEN, U HAVE, P HEIDEJORGENSEN, MP HARKONEN, TJ TI ANTIBODIES TO CANINE-DISTEMPER VIRUS IN ANTARCTIC SEALS SO MARINE MAMMAL SCIENCE LA English DT Note C1 UNIV STOCKHOLM,INST ZOOL,S-10691 STOCKHOLM,SWEDEN. STATE VET INST VIRUS RES,DK-4771 KALVEHAUE,DENMARK. GREENLAND FISHERIES RES INST,DK-2200 COPENHAGEN N,DENMARK. TJARNO MARINE BIOL LAB,S-45200 STROMSTAD,SWEDEN. RP BENGTSON, JL (reprint author), NOAA,NATL MARINE FISHERIES SERV,ALASKA FISHERIES SCI CTR,SEATTLE,WA 98115, USA. NR 8 TC 66 Z9 67 U1 0 U2 12 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD JAN PY 1991 VL 7 IS 1 BP 85 EP 87 DI 10.1111/j.1748-7692.1991.tb00553.x PG 3 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EX930 UT WOS:A1991EX93000008 ER PT J AU JACKSON, RHF BOGGS, PT NASH, SG POWELL, S AF JACKSON, RHF BOGGS, PT NASH, SG POWELL, S TI GUIDELINES FOR REPORTING RESULTS OF COMPUTATIONAL EXPERIMENTS - REPORT OF THE ADHOC COMMITTEE SO MATHEMATICAL PROGRAMMING LA English DT Article ID PROGRAMMING TEST PROBLEMS; MATHEMATICAL SOFTWARE; GENERATION; NETGEN C1 NATL INST STAND & TECHNOL,CTR COMP & APPL MATH,GAITHERSBURG,MD 20899. GEORGE MASON UNIV,DEPT OPERAT RES & APPL STAT,FAIRFAX,VA 22030. UNIV LONDON LONDON SCH ECON & POLIT SCI,LONDON WC2A 2AE,ENGLAND. RP JACKSON, RHF (reprint author), NATL INST STAND & TECHNOL,CTR MFG ENGN,GAITHERSBURG,MD 20899, USA. NR 30 TC 29 Z9 29 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0025-5610 J9 MATH PROGRAM JI Math. Program. PD JAN PY 1991 VL 49 IS 3 BP 413 EP 425 PG 13 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA EW714 UT WOS:A1991EW71400008 ER PT J AU BENDERSKY, LA ROTH, RS RAMON, JT SHECHTMAN, D AF BENDERSKY, LA ROTH, RS RAMON, JT SHECHTMAN, D TI CRYSTALLOGRAPHIC CHARACTERIZATION OF SOME INTERMETALLIC COMPOUNDS IN THE AL-CR SYSTEM SO METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article AB Two Al-Cr compounds, known in the literature as the eta and epsilon phases, were studied by precession camera single crystal X-ray diffraction and transmission electron microscopy (TEM). The results are different from those reported in the literature. The epsilon Al4Cr phase was found to be hexagonal P6(3)/mmc, with lattice parameters a = 2.01 nm and c = 2.48 nm, and we suggest that it is isomorphous to the Al4Mn mu phase. The eta Al11Cr2 phase has a monoclinic (pseudo-orthorhombic) C-centered Bravais lattice with a3 congruent-to 1.76 nm, b3 congruent-to 3.05 nm, c3 congruent-to 1.76 nm, and beta congruent-to 90 deg and a possible C2/c space group. Single crystals of the eta phase are usually twinned. C1 NATL INST STAND & TECHNOL,INST MAT SCI & ENGN,DIV CERAM,GAITHERSBURG,MD 20899. TECHNION ISRAEL INST TECHNOL,DEPT MAT ENGN,HAIFA,ISRAEL. RP BENDERSKY, LA (reprint author), NATL INST STAND & TECHNOL,INST MAT SCI & ENGN,DIV MET,GAITHERSBURG,MD 20899, USA. NR 11 TC 27 Z9 30 U1 1 U2 9 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0360-2133 J9 METALL TRANS A PD JAN PY 1991 VL 22 IS 1 BP 5 EP 10 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA EX126 UT WOS:A1991EX12600001 ER PT J AU RICKER, RE FINK, JL VASUDEVAN, AK AF RICKER, RE FINK, JL VASUDEVAN, AK TI ON THE STRESS-CORROSION CRACKING OF AL-LI ALLOYS - THE ROLE OF GRAIN-BOUNDARY PRECIPITATES SO METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Note ID ALUMINUM-ALLOYS; FRACTURE C1 USN,OFF RES,DIV DEF SCI,ARLINGTON,VA 22217. RP RICKER, RE (reprint author), NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,DIV MET,CORROS GRP,GAITHERSBURG,MD 20899, USA. RI Ricker, Richard/H-4880-2011 OI Ricker, Richard/0000-0002-2871-4908 NR 12 TC 9 Z9 9 U1 0 U2 1 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0360-2133 J9 METALL TRANS A PD JAN PY 1991 VL 22 IS 1 BP 264 EP 267 PG 4 WC Materials Science, Multidisciplinary SC Materials Science GA EX126 UT WOS:A1991EX12600029 ER PT J AU KOCH, SE KOCIN, PJ AF KOCH, SE KOCIN, PJ TI FRONTAL CONTRACTION PROCESSES LEADING TO THE FORMATION OF AN INTENSE NARROW RAINBAND SO METEOROLOGY AND ATMOSPHERIC PHYSICS LA English DT Article ID COLD FRONTS; MICROSCALE STRUCTURE; PRECIPITATION; MESOSCALE; LEVEL; FRONTOGENESIS; MODELS; SCALE; ENVIRONMENTS; ORGANIZATION AB Processes which played an important role in the sudden development of an intense narrow cold frontal rainband (NCFR) along the leading edge of a wintertime anafront are investigated. Quantitative analysis of the Regional Analysis and Forecast System (RAFS) initialization and Nested Grid Model (NGM) forecast fields, satellite-derived water vapor and ozone measurements, and conventional meteorological data are employed in this study. The NCFR developed upon merger of an arctic front with a nearly stationary cold front over the Appalachian mountains. Rapid intensification of an ageostrophic momentum surge associated with the formation of a sub-synoptic surface pressure ridge immediately behind the arctic front played a dominant role in forcing explosive frontogenesis during frontal merger. A deep tropopause fold and related mid-tropospheric subsidence feature within the entrance region of an upper-level jet crossed the mountains at the time of NCFR formation. Synthesis of the surface, NGM, and satellite data suggests that this subsidence resulted in the development of the sub-synoptic high pressure system, whose leading edge was marked by a 5 mb pressure jump. Consequential amplification and scale contraction of the cross-front pressure gradient indicates that the scale of the merged frontal system contracted just prior to NCFR development. As precipitation developed, the pressure jump took on a microscale character and increased to 8 mb amplitude. The subsequent intensity of this frontal rainband is explained by the interaction between vertical shear associated with a strong, pre-frontal, low-level jet and the gravity current-like structure at the leading edge of the merged cold front. C1 NOAA,NATL WEATHER SERV,NATL METEOROL CTR,WASHINGTON,DC 20233. RP KOCH, SE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHER LAB,CODE 912,GREENBELT,MD 20771, USA. NR 55 TC 21 Z9 21 U1 0 U2 4 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7971 J9 METEOROL ATMOS PHYS JI Meteorol. Atmos. Phys. PY 1991 VL 46 IS 3-4 BP 123 EP 154 DI 10.1007/BF01027339 PG 32 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA GP903 UT WOS:A1991GP90300002 ER PT J AU BRODERICK, BE COFINO, WP CORNELIS, R HEYDORN, K HORWITZ, W HUNT, DTE HUTTON, RC KINGSTON, HM MUNTAU, H BAUDO, R ROSSI, D VANRAAPHORST, JG LUB, TT SCHRAMEL, P SMYTH, FT WELLS, DE KELLY, AG AF BRODERICK, BE COFINO, WP CORNELIS, R HEYDORN, K HORWITZ, W HUNT, DTE HUTTON, RC KINGSTON, HM MUNTAU, H BAUDO, R ROSSI, D VANRAAPHORST, JG LUB, TT SCHRAMEL, P SMYTH, FT WELLS, DE KELLY, AG TI A JOURNEY THROUGH QUALITY-CONTROL SO MIKROCHIMICA ACTA LA English DT Article DE QUALITY ASSURANCE; QUALITY CONTROL; ACCREDITATION; INTERCOMPARISON EXERCISES AB The Euroanalysis VII conference in Vienna included a two-day session: Quality Assurance in Analytical Chemistry. The contributions comprised 15 lectures devoted to: intra-laboratory quality measures, inter-laboratory control, formal aspects and accreditation and implementation. The paper presents an overview of the main items developed by the contributors. C1 FREE UNIV AMSTERDAM,INST ENVIRONM STUDIES,DE BOELELAAN 1115,1081 HV AMSTERDAM,NETHERLANDS. NAMAS,NATL PHYS LAB,TEDDINGTON,ENGLAND. STATE UNIV GHENT,ANALYT CHEM LAB,B-9000 GHENT,BELGIUM. RISO NATL LAB,DK-4000 ROSKILDE,DENMARK. US FDA,CTR FOOD SAFETY & APPL NUTR,WASHINGTON,DC 20204. WRC MEDMENHAM LAB,MARLOW,BUCKS,ENGLAND. MED CONTROL AGCY,DEPT HLTH,LONDON,ENGLAND. NATL INST STAND & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD. COMMISS EUROPEAN COMMUNITIES,JOINT RES CTR ISPRA,INST ENVIRONM,I-21020 ISPRA,ITALY. NETHERLANDS ENERGY RES FDN,PETTEN,NETHERLANDS. GESELL STRAHLEN & UMWELTFORSCH MBH,INST OKOL CHEM,W-8042 NEUHERBERG,GERMANY. IRISH LAB ACCREDITAT BOARD,DUBLIN,IRELAND. SCOTTISH OFF AGR & FISHERIES DEPT,MARINE LAB,ABERDEEN,SCOTLAND. NR 36 TC 12 Z9 12 U1 0 U2 1 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0026-3672 J9 MIKROCHIM ACTA JI Mikrochim. Acta PY 1991 VL 2 IS 1-6 BP 523 EP 542 PG 20 WC Chemistry, Analytical SC Chemistry GA GK819 UT WOS:A1991GK81900049 ER PT J AU STRATY, GC PIEPER, J HANLEY, HJM AF STRATY, GC PIEPER, J HANLEY, HJM TI CONTRAST MATCHED STUDIES OF A SHEARED BINARY COLLOIDAL SUSPENSION SO MOLECULAR PHYSICS LA English DT Note ID NEUTRON-SCATTERING AB A method is proposed to measure the neutron scattering the partial scattered intensities from a suspension mixture in an H2O/D2O solvent that will match out one of the components. Total and partial neutron-scatter intensities from an aqueous colloidal suspension mixture (volume fraction phi = 0.15) of 91 nm polystyrene latex and 54 nm silica particles in water are reported. Results are given for the mixture at rest and under shear. We comment on the standard assumption that structure factors of components in a mixture should scale with the particle radii. RP STRATY, GC (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,BOULDER,CO 80303, USA. NR 12 TC 1 Z9 1 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0026-8976 J9 MOL PHYS JI Mol. Phys. PD JAN PY 1991 VL 72 IS 1 BP 241 EP 246 DI 10.1080/00268979100100181 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EV593 UT WOS:A1991EV59300018 ER PT J AU Rowley, RL Ely, JF AF Rowley, Richard L. Ely, James F. TI NONEQUILIBRIUM MOLECULAR DYNAMICS SIMULATIONS OF n-BUTANE AND ISOBUTANE VISCOSITY SO MOLECULAR SIMULATION LA English DT Article DE Molecular dynamics; n-butane; isobutane; viscosity; nonequilibrium molecular dynamics; structured molecules; site-site model AB Nonequilibrium molecular dynamics simulations of Lennard-Jones site-site models representing n-butane and isobutane were performed over much of the density range for which experimental viscosity data are available. Simulated viscosities extrapolated to zero shear agreed very well with experimental data over the entire density range. The shear perturbs the equilibrium structure of the fluid and produces shear birefringence or molecular alignment. The relative ability of the molecules to orient in the shear field accounts for their relative shear-thinning rheology. Saturation of the shear birefringence produces a change in the observed rheology at higher shear rates. The effect of shear on thermodynamic properties is also investigated. C1 [Rowley, Richard L.] Brigham Young Univ, Provo, UT 84602 USA. [Ely, James F.] Natl Inst Stand & Technol, Boulder, CO 80303 USA. RP Rowley, RL (reprint author), Natl Inst Stand & Technol, 325 Broadway, Boulder, CO 80303 USA. NR 28 TC 9 Z9 9 U1 1 U2 3 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0892-7022 J9 MOL SIMULAT JI Mol. Simul. PY 1991 VL 7 IS 5-6 BP 303 EP 323 DI 10.1080/08927029108022459 PG 21 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA V04SY UT WOS:000207079300004 ER PT J AU GRELL, GA KUO, YH PASCH, RJ AF GRELL, GA KUO, YH PASCH, RJ TI SEMIPROGNOSTIC TESTS OF CUMULUS PARAMETERIZATION SCHEMES IN THE MIDDLE LATITUDES SO MONTHLY WEATHER REVIEW LA English DT Article ID LARGE-SCALE ENVIRONMENT; CONVECTIVE PARAMETERIZATION; CLOUD ENSEMBLE; RAINFALL RATES; UNITED-STATES; DOWNDRAFTS; SYSTEM; BUDGETS; MODEL; HEAT AB In this paper, we consider three disparate classes of cumulus parameterization schemes, applied to cases of severe midlatitude convective storms observed during SESAME-1979. Objective analysis of the observed data was carried out and verifying heat and moisture budgets were computed. For the three types of schemes-Arakawa-Schubert, Kreitzberg-Perkey, and Kuo-the underlying closure assumptions and cloud models are tested within the generalized framework of dynamic control, static control, and feedback. Using the semiprognostic approach, single time step predictions of the heating and drying rates due to convection are obtained for the three schemes and are compared with those diagnosed from the observed budgets. The results presented should have important implications for models with a resolution of more than 180 km. The vertical distribution of warming and drying are fairly well reproduced by the Arakawa-Schubert scheme; however, excessive amounts are predicted in most of the lower troposphere and insufficient drying is predicted just near the surface. This was ameliorate by incorporating moist convective-scale downdrafts into the parameterization. Although the downdraft mass flux is highly sensitive to some arbitrary parameters, the inclusion of downdrafts is shown to be crucial to predict the feedback correctly in the midlatitude environment. A test of the quasi-equilibrium assumption for these severe storm cases showed that it was valid (as had previously been demonstrated for the tropics). For the Kreitzberg-Perkey scheme, the most severe limitations were found to be a lack of dependence on large-scale destabilizing effects in the dynamic control and the assumption that clouds instantly decay and mix with their environment in the feedback. For the Kuo-type schemes, tests of its dynamic control demonstrated the need to include mesoscale moisture convergence in order to correctly predict the vertically integrated heating and drying rates, unless the resolved scale is fairly small and the moistening parameter is set to zero. Tests with the feedback-wherein the vertical distribution of heating and drying is dictated by the differences between cloud and environmental thermodynamic properties-revealed serious shortcomings. In particular, this scheme is unable to predict heating maxima for atmospheric layers exhibiting high static stability. Such stable layers are frequently noted in the midlatitude environment of severe convective storms. C1 NATL HURRICANE CTR, CORAL GABLES, FL USA. RP NATL CTR ATMOSPHER RES, POB 3000, BOULDER, CO 80307 USA. RI grell, georg/B-6234-2015 OI grell, georg/0000-0001-5214-8742 NR 55 TC 92 Z9 96 U1 1 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0027-0644 EI 1520-0493 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 5 EP 31 DI 10.1175/1520-0493(1991)119<0005:STOCPS>2.0.CO;2 PG 27 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200001 ER PT J AU DOUGLAS, MW FEDOR, LS SHAPIRO, MA AF DOUGLAS, MW FEDOR, LS SHAPIRO, MA TI POLAR LOW STRUCTURE OVER THE NORTHERN GULF OF ALASKA BASED ON RESEARCH AIRCRAFT OBSERVATIONS SO MONTHLY WEATHER REVIEW LA English DT Article ID AIR STREAMS; OUTBREAKS AB During the 1987 Alaska Storms Program, a polar low that developed over the northern Gulf of Alaska was investigated during two flights by a WP-3D research aircraft on successive days. Analyses based on data obtained from omega dropwindsondes during the first flight showed the small (approximately 300 km) horizontal scale of the vortex. The vortex center was characterized by suppressed cloudiness on both days and was decidely warmer at low levels than its surroundings. The vorticity associated with the polar low was largest near the surface and decreased rapidly with height on the first day, with only a very weak circulation evident by 700 mb. Coldest 500-mb temperatures and lowest static stabilities were found directly above the surface low. On the second day the vortex was more intense at midtropospheric levels than on the previous day, and convective clouds extended to higher levels. C1 NOAA, ENVIRONM RES LABS, WAVE PROPAGAT LAB, BOULDER, CO 80303 USA. RP UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. NR 14 TC 24 Z9 24 U1 1 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0027-0644 EI 1520-0493 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 32 EP 54 DI 10.1175/1520-0493(1991)119<0032:PLSOTN>2.0.CO;2 PG 23 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200002 ER PT J AU TOTH, Z AF TOTH, Z TI INTERCOMPARISON OF CIRCULATION SIMILARITY MEASURES SO MONTHLY WEATHER REVIEW LA English DT Article ID SKILL SCORES; ANALOGS; VERIFICATION AB Most circulation studies use the root-mean-square difference (RMSD) or correlation (COR) (or both) as a tool for comparing different (observed or forecast) circulation patterns. However, there are some other measures introduced into the literature (e.g., mean absolute error, rms vector error, S1 score) and one might easily construct other measures of circulation similarity. The question of the appropriate choice among possible similarity measures rarely arises. In this paper an objective intercomparison of nine different similarity measures (also called distance functions) is presented. The similarity measures were evaluated through the 700-hPa hemispheric analog forecasts obtained by them. In the indirect evaluation, the analogs to the base cases found by each individual distance function were checked whether they were identical with the best analogs (selected by all nine functions) to the circulation pattern that actually followed. The number of coincidences is an indication of the quality of the similarity measures and is found, both for daily and pentad data, to be largest for a dynamically oriented distance function that measure the difference between the gradient of height of two maps. For daily data, RMSD also appears to be significantly better than COR. However, in a direct assessment, where analog forecasts by each distance function were compared to the analysis fields using one of the distance functions to measure the difference, practically no performance differences were found among the functions that performed differently in the indirect evaluation. It should be noted that the results of both intercomparison methods are, in a strict sense, valid only for forecast situations. For other purposes, other distance functions might be more appropriate. However, there are some indications that the similarity measure that performed best in the forecast experiments (difference in the gradient of height) remains superior in other applications, too. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RI Toth, Zoltan/I-6624-2015 OI Toth, Zoltan/0000-0002-9635-9194 NR 13 TC 17 Z9 18 U1 1 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 55 EP 64 DI 10.1175/1520-0493(1991)119<0055:IOCSM>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200003 ER PT J AU TOTH, Z AF TOTH, Z TI ESTIMATION OF ATMOSPHERIC PREDICTABILITY BY CIRCULATION ANALOGS SO MONTHLY WEATHER REVIEW LA English DT Article ID DYNAMICAL PREDICTABILITY; MODEL AB An empirical predictability study is presented based on 700-hPa Northern Hemispheric circulation analogs. A linear relationship between the initial root-mean-square difference of analog pairs and the time taken for the error to reach a certain limit value is used to extrapolate the predictability with initial errors considerably smaller than those in the present database. The relationship, first used in predictability experiments with the NMC numerical weather prediction (NWP) model, conforms to the experimental data in that the error growth depends not only on the magnitude of the error but also, to a lesser extent, on the initial error. Despite the fact that earlier error growth studies did not reflect this dependence on the initial error predictability results with two state-of-the-art numerical models using different analysis methods, and those derived here by the linear relationship mentioned above from circulation analogs are gratifying similar. These estimates indicate that given the present observational error (about 12 m rms) and spatial resolution of the data, in the NH winter, the atmosphere seems to have 17-18 days of predictability before the initial difference reaches 95% of the saturation level (random error). In present models, the forecast error reaches the same 95% level at around ten and a half days. Since the climate mean as a forecast has considerably less error than a random forecast, from a forecaster's point of view it is more appropriate to use the climate error as a reference level (71% of the saturation level). With the same conditions as above and using this alternative error reference level, the atmosphere might have a predictability of nine days, while the two models considered currently exhaust predictability at close to six days, leaving considerable room for improvement. Note that these atmospheric predictability estimates were obtained without considering a possible enhancement of predictability due to interactions with the slowly changing ocean and other geospheres. Hence, these estimates can be considered as lower limits to atmospheric predictability. Comparing the predictability estimates gained from twin model experiments to those from observational data is a special, complex method of model verification. Keeping in mind the uncertainties in the observational studies, one can ascertain that the models produce quite similar error growth characteristics to those of the real atmosphere. Hence, the NWP models are quite good on the time and spatial scales for which they were designed. However, there are some indications that they probably could not be reliably used to answer the theoretical questions regarding the gain in predictability with very small initial errors or with very high spatial resolution. Some kind of dynamic-empirical approach based on the interactions between different scales of motion is required to enhance current knowledge on these topics. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RI Toth, Zoltan/I-6624-2015 OI Toth, Zoltan/0000-0002-9635-9194 NR 12 TC 23 Z9 29 U1 0 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 65 EP 72 DI 10.1175/1520-0493(1991)119<0065:EOAPBC>2.0.CO;2 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200004 ER PT J AU BARTELS, DL MADDOX, RA AF BARTELS, DL MADDOX, RA TI MIDLEVEL CYCLONIC VORTICES GENERATED BY MESOSCALE CONVECTIVE SYSTEMS SO MONTHLY WEATHER REVIEW LA English DT Article ID 1977 JOHNSTOWN FLOOD; BETA-SCALE STRUCTURE; WARM-CORE VORTEX; UNITED-STATES; NUMERICAL-SIMULATION; TROPICAL CYCLONE; LIFE-CYCLE; COMPLEXES; EVOLUTION; SATELLITE AB Despite the large number of convective systems that occur over the central United States every year, there are typically only a few well-defined, midlevel vortices apparent in satellite imagery after the overlying anvil debris from some convective complexes has dissipated or advected away. A climatology of mesoscale convectively generated vortex (MCV) events for 1981-1988 is presented and the synotpic setting in which the circulation becomes apparent is discussed. Proximity sounding data from numerous cases are used to examine features of the kinematic and thermodynamic setting of MCVs at various lifecycle stages defined by satellite imagery. Features of the large-scale environment that appear conducive to the formation and longevity of MCVs include weak flow, weak vertical shear, weak background relative voricity, and intense horizontal and vertical moisture gradients. The rapid mesovortex generation observed can be explained by the stretching term of the vorticity equation. Most MCVs emerge from MCC-type (i.e., circular) systems, but of the cases noted (24 events over the central United States between 1981-1988) only half originated in systems that met Maddox's stringent MCC size and duration criteria. Furthermore, since several MCVs emerged from small and relatively short-lived convective systems, the background synoptic environment, in addition to the magnitude of latent heating, may provide important controlling factors in determining which MCSs will lead to documentable MCVs. The majority of MCVs (i.e., 80%) were first observed at latitudes south of 40-degrees-N. Since many convective systems occur at latitudes north of 40-degrees-N, the paucity of MCVs in northern latitudes is not the result of a lack of convective systems. C1 NOAA,ENVIRONM RES LABS,NATL SEVERE STORMS LAB,NORMAN,OK 73069. RP BARTELS, DL (reprint author), NOAA,ENVIRONM RES LABS,NATL SEVERE STORMS LAB,325 BROADWAY,BOULDER,CO 80303, USA. NR 47 TC 130 Z9 142 U1 1 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 104 EP 118 DI 10.1175/1520-0493(1991)119<0104:MCVGBM>2.0.CO;2 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200007 ER PT J AU STUMPF, GJ JOHNSON, RH SMULL, BF AF STUMPF, GJ JOHNSON, RH SMULL, BF TI THE WAKE LOW IN A MIDLATITUDE MESOSCALE CONVECTIVE SYSTEM HAVING COMPLEX CONVECTIVE ORGANIZATION SO MONTHLY WEATHER REVIEW LA English DT Article ID 10-11 JUNE 1985; DOPPLER RADAR ANALYSIS; INTENSE SQUALL LINE; STRATIFORM PRECIPITATION; NUMERICAL-SIMULATION; PRESSURE SYSTEMS; TRAILING REGION; REAR INFLOW; PRE-STORM; FEATURES AB An analysis has been carried out of the surface pressure field in a highly complex mesoscale convective system that occurred on 3-4 June 1985 during the Oklahoma-Kansas Preliminary Regional Experiment for STORM-Central (OK PRE-STORM). During its mature stage the storm consisted of two primary intersecting convective bands approximately 200 km in length, one oriented NE-SW (to the north) and the other N-S (to the south), with a stratiform precipitation region extending to the northwest of the bands. Stratiform precipitation was weak to nonexistent in the southernmost portion of the storm. Although the organization of the storm was complex, the surface pressure field resembled those associated with simpler, quasi-linear squall systems containing trailing stratiform regions: a mesohigh existed near the convective line and a wake low was observed to the rear of the stratiform region. A strong system-relative, descending rear inflow jet was observed in the northern part of the storm near the wake low. Significantly, only the northern portion of the storm had a trailing stratiform region and it was only in that region that a wake low and a descending rear inflow jet occurred. An analysis of dual-Doppler radar data taken in the northern part of the storm indicates remarkably strong, localized subsidence at low levels within the rear inflow jet, up to 6 m s-1 on a 10-km scale at the back edge of the trailing stratiform region. The maximum sinking occurred (a) to the rear of the highest reflectivity portion of the trailing stratiform region, (b) within the region of the strongest low-level reflectivity gradient, and (c) was concident with the strongest surface pressure gradient [up to 2 mb (5 km)-1]ahead of the wake low center. These findings indicate that the trailing stratiform precipitation regions of mesoscale convective systems can be dynamically significant phenomena, generating rapidly descending inflow jets at their back edges and, consequently, producing pronounced lower-tropospheric warming, intense surface pressure gradients and strong low-level winds. C1 COLORADO STATE UNIV,DEPT ATMOSPHER SCI,FT COLLINS,CO 80523. NATL SEVERE STORMS LAB,DIV MESOSCALE RES,BOULDER,CO. NR 45 TC 54 Z9 54 U1 1 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 134 EP 158 DI 10.1175/1520-0493(1991)119<0134:TWUIAM>2.0.CO;2 PG 25 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200010 ER PT J AU RUMINSKI, M AF RUMINSKI, M TI 2 UNUSUAL TROPICAL CYCLONES IN THE SOUTHEAST PACIFIC SO MONTHLY WEATHER REVIEW LA English DT Article AB The unusual concurrent development of two strong tropical cyclones in the southeast Pacific during February 1989 is seen from GOES 7 satellite imagery. A review of past tropical cyclone activity in the region is presented which shows that these storms were rare in several aspects. An analysis of mean weather conditions is conducted and indicates that a deep layer easterly wind anomaly with reduced vertical wind shear coupled with warmer than normal sea surface temperatures were important contributing factors in the storms' development. C1 NATL ENVIRONM SATELLITE DATA & INFORMAT SERV,SYNOPT ANAL BRANCH,WASHINGTON,DC. NR 7 TC 2 Z9 2 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD JAN PY 1991 VL 119 IS 1 BP 218 EP 222 DI 10.1175/1520-0493(1991)119<0218:TUTCIT>2.0.CO;2 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA682 UT WOS:A1991FA68200016 ER PT B AU BERGTOLD, DS SIMIC, MG AF BERGTOLD, DS SIMIC, MG BE GLEDHILL, BL MAURO, F TI HYDROXY RADICAL IN RADIATION-DOSIMETRY AND METABOLISM - DIETARY CALORIC EFFECT SO NEW HORIZONS IN BIOLOGICAL DOSIMETRY SE PROGRESS IN CLINICAL AND BIOLOGICAL RESEARCH LA English DT Proceedings Paper CT INTERNATIONAL SYMP ON TRENDS IN BIOLOGICAL DOSIMETRY CY OCT 23-27, 1990 CL LERICI, ITALY SP ENTE NAZL ENERGIA ATOM, US DOE, COMMISS EUROPEAN COMMUNITY, US EPA RP BERGTOLD, DS (reprint author), NATL INST STAND & TECHNOL,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. NR 0 TC 6 Z9 6 U1 0 U2 0 PU WILEY-LISS, INC PI NEW YORK PA NEW YORK J9 PROG CLIN BIOL RES JI Prog.Clin.Biol.Res. PY 1991 VL 372 BP 21 EP 32 PG 12 GA BU89Y UT WOS:A1991BU89Y00003 PM 1659699 ER PT J AU EISENHAUER, CM AF EISENHAUER, CM TI STUDY OF SLAB TRANSMISSION AND REFLECTION SO NUCLEAR SCIENCE AND ENGINEERING LA English DT Article ID BUILDUP FACTORS AB Using Monte Carlo calculations, it is shown that the transmission of scattered neutrons or gamma rays from a point source through a plane slab of infinite extent to a point detector depends on the orientation of the slab but varies very little with the slab position. This is also true for reflected radiation if the source is replaced by its image source and the results are interpreted in terms of a transmission problem. It is also shown that the transition from a slab of small extent (narrow beam conditions) to a slab of infinite extent (broad beam conditions) can be characterized by a simple function of the single-scatter angle. This function, too, can be applied to reflected radiation by invoking the image source. Typical results are presented for polyethylene and iron. RP EISENHAUER, CM (reprint author), NATL INST STAND & TECHNOL,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0029-5639 J9 NUCL SCI ENG JI Nucl. Sci. Eng. PD JAN PY 1991 VL 107 IS 1 BP 67 EP 81 PG 15 WC Nuclear Science & Technology SC Nuclear Science & Technology GA ER188 UT WOS:A1991ER18800005 ER PT J AU ZEISSLER, CJ AF ZEISSLER, CJ TI ETCHED TOPOGRAPHY IN NUCLEAR TRACK DETECTORS AND EFFECT ON QUANTITATION RELATED TO SAMPLE COMPOSITION SO NUCLEAR TRACKS AND RADIATION MEASUREMENTS LA English DT Article; Proceedings Paper CT 15TH INTERNATIONAL CONF ON PARTICLE TRACKS IN SOLIDS CY SEP 03-07, 1990 CL MARBURG, GERMANY SP INT NUCL TRACK SOC DE NUCLEAR TRACK TECHNIQUE; MAPPING; QUANTITATION; LITHIUM; BORON; GADOLINIUM; SAMARIUM; EUROPIUM ID STABLE ISOTOPES; FISSION; LI-6 AB When using the nuclear track technique for multi-element detection and spatial mapping, the presence of moderate to high concentrations of boron or lithium results in a large number of (n,alpha) reactions when using the high thermal neutron fluences required to map trace amounts of uranium. When chemically etched, tracks generated by a large number of alpha particles cannot be spatially resolved, and are manifested instead by large-scale depressions in the detector surface. High Li and B concentration samples have the most pronounced topographic development in both CR-39 and CN detectors. Samples with low concentrations of Li and B or high concentrations of Gd, Sm or Eu developed moderate depressions. These depressions can affect uranium quantitation, but simultaneously, they provide useful information about the sample. This paper is a preliminary study of observations of etched bulk depressions, variations in track revelation time, and the mapping of samples containing elements with high thermal neutron absorption cross sections such as gadolinium. RP ZEISSLER, CJ (reprint author), NATL INST STAND & TECHNOL,DIV SURFACE & MICROANAL SCI,MICROANAL RES GRP,GAITHERSBURG,MD 20899, USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0735-245X J9 NUCL TRACKS RAD MEAS PY 1991 VL 19 IS 1-4 BP 793 EP 798 PG 6 WC Nuclear Science & Technology SC Nuclear Science & Technology GA GP190 UT WOS:A1991GP19000184 ER PT J AU LINK, AN QUICK, P TASSEY, G AF LINK, AN QUICK, P TASSEY, G TI INVESTMENTS IN PRODUCT QUALITY - A DESCRIPTIVE STUDY OF THE UNITED-STATES OPTICAL FIBER INDUSTRY SO OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE LA English DT Article DE PRODUCT QUALITY; OPTICAL FIBER INDUSTRY AB This paper attempts, in a descriptive fashion, to foster an understanding of the character and magnitude of investments to achieve quality by firms in the optical fiber industry. Based on survey data from all US firms and from a representative sample of international companies, it appears that, among other things, US firms invested a larger percent of their budgets toward quality-related objectives in the 1980s than did their foreign counterparts. This might explain, in part, why US producers of optical fiber dominate the world market when many other technology-based industries are losing their share of the world market. C1 ERNST & YOUNG,WASHINGTON,DC. NIST,GAITHERSBURG,MD. RP LINK, AN (reprint author), UNIV N CAROLINA,DEPT ECON,462 BRYAN BLDG,GREENSBORO,NC 27412, USA. NR 7 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0305-0483 J9 OMEGA-INT J MANAGE S JI Omega-Int. J. Manage. Sci. PY 1991 VL 19 IS 5 BP 471 EP 474 DI 10.1016/0305-0483(91)90063-Y PG 4 WC Management; Operations Research & Management Science SC Business & Economics; Operations Research & Management Science GA GF209 UT WOS:A1991GF20900014 ER PT J AU GOYAL, IC GALLAWA, RL GHATAK, AK AF GOYAL, IC GALLAWA, RL GHATAK, AK TI METHODS OF ANALYZING PLANAR OPTICAL WAVE-GUIDES SO OPTICS LETTERS LA English DT Article ID MODES AB We present a new approximate solution of the scalar-wave equation for planar optical waveguides with arbitrary refractive-index profiles. Test calculations are done for an index profile with a known solution. The comparison demonstrates the accuracy of our method. The method may also be applied to circularly symmetric optical fibers. C1 INDIAN INST TECHNOL,DEPT PHYS,NEW DELHI 110016,INDIA. RP GOYAL, IC (reprint author), NATL INST STAND & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303, USA. NR 6 TC 24 Z9 24 U1 1 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD JAN 1 PY 1991 VL 16 IS 1 BP 30 EP 32 DI 10.1364/OL.16.000030 PG 3 WC Optics SC Optics GA ER486 UT WOS:A1991ER48600011 PM 19773827 ER PT J AU MONROE, C ROBINSON, H WIEMAN, C AF MONROE, C ROBINSON, H WIEMAN, C TI OBSERVATION OF THE CESIUM CLOCK TRANSITION USING LASER-COOLED ATOMS IN A VAPOR CELL SO OPTICS LETTERS LA English DT Article AB Cesium atoms in a vapor cell have been trapped and cooled by using light from laser diodes. The 6S F = 4, m = 0 --> 6S F = 3, m = 0 hyperfine clock transition was excited as these atoms then fell 2.5 cm in darkness. We observed a linewidth of 8 Hz with good signal-to-noise ratio. This gave a short-term fractional frequency resolution of 6.5 x 10(-12)/square-root-sec, and there is potential for substantial improvement. The apparatus is extremely simple and compact, consisting of a small cesium vapor cell and two diode lasers. C1 DUKE UNIV,DEPT PHYS,DURHAM,NC 27706. NATL INST STAND & TECHNOL,BOULDER,CO 80309. UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309. RP MONROE, C (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. RI Monroe, Christopher/G-8105-2011 NR 6 TC 31 Z9 32 U1 2 U2 6 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD JAN 1 PY 1991 VL 16 IS 1 BP 50 EP 52 DI 10.1364/OL.16.000050 PG 3 WC Optics SC Optics GA ER486 UT WOS:A1991ER48600018 PM 19773834 ER PT B AU BURTON, BP AF BURTON, BP BE LINDSLEY, DH TI THE INTERPLAY OF CHEMICAL AND MAGNETIC-ORDERING SO OXIDE MINERALS : PETROLOGIC AND MAGNETIC SIGNIFICANCE SE REVIEWS IN MINERALOGY LA English DT Review CT SHORT COURSE ON FE-TI OXIDES : THEIR PETROLOGIC AND MAGNETIC SIGNIFICANCE CY MAY 24-27, 1991 CL AMER GEOPHYS UNION, BALTIMORE, MD SP MINERAL SOC AMER, AMER GEOPHYS UNION HO AMER GEOPHYS UNION ID SPINEL SOLID-SOLUTIONS; THERMODYNAMIC PROPERTIES; CATION DISTRIBUTIONS; SODIUM-FELDSPAR; HEAT-CAPACITY; TRANSITION; SYSTEM; MODEL; NIO; APPROXIMATION RP BURTON, BP (reprint author), NBS,B150-223,DIV 450,GAITHERSBURG,MD 20899, USA. NR 0 TC 43 Z9 43 U1 0 U2 1 PU MINERALOGICAL SOC AMERICA PI WASHINGTON PA WASHINGTON BN 0-939950-30-8 J9 REV MINERAL PY 1991 VL 25 BP 303 EP 321 PG 19 WC Geology; Mineralogy SC Geology; Mineralogy GA BT93X UT WOS:A1991BT93X00008 ER PT J AU PHILLIPS, WD LETT, PD ROLSTON, SL TANNER, CE WATTS, RN WESTBROOK, CI SALOMON, C DALIBARD, J CLAIRON, A GUELLATI, S AF PHILLIPS, WD LETT, PD ROLSTON, SL TANNER, CE WATTS, RN WESTBROOK, CI SALOMON, C DALIBARD, J CLAIRON, A GUELLATI, S TI OPTICAL MOLASSES - THE COLDEST ATOMS EVER SO PHYSICA SCRIPTA LA English DT Article ID RESONANCE-RADIATION PRESSURE; MULTILEVEL ATOMS; DOPPLER LIMIT; LASER; SPECTROSCOPY; FOUNTAIN; MOTION AB Optical molasses is a three-dimensional (3-D) configuration of laser beams used to laser-cool and to viscously confine neutral atoms. Atoms laser cooled in optical molasses reach temperatures much lower than the limit given by the original theories of laser cooling based on the Doppler effect. This cooling below the Doppler-cooling limit is now seen as being due to new laser cooling mechanisms not considered in the original theories. The dependence of the atomic temperature on parameters such as laser intensity and detuning shows good agreement between calculations performed in 1-D and experiments performed in 3-D. For cooling of Na and Cs atoms, the lowest observed temperatures correspond to rms velocities between three and four times the single photon recoil velocity. For Cs the temperature is 2.5 +/- 0.6-mu-K and is the lowest temperature ever measured for 3-D cooling. C1 ECOLE NORM SUPER,CNRS,SPECT HERZTIENNE LAB 18,F-75231 PARIS 05,FRANCE. UNIV PARIS 07,F-75231 PARIS 05,FRANCE. LAB PRIMAIRE TEMPS & FREQUENCES,F-75014 PARIS,FRANCE. LAB AIMEE COTTON,F-91405 ORSAY,FRANCE. RP PHILLIPS, WD (reprint author), NATL INST STAND & TECHNOL,CTR ATOM MOLEC & OPT PHYS,PHY B160,GAITHERSBURG,MD 20899, USA. RI Westbrook, Christoph/B-6092-2009; rolston, steven/L-5175-2013; Dalibard, Jean/M-5648-2015 OI Westbrook, Christoph/0000-0002-6490-0468; rolston, steven/0000-0003-1671-4190; Dalibard, Jean/0000-0001-8469-3913 NR 39 TC 2 Z9 2 U1 0 U2 1 PU ROYAL SWEDISH ACAD SCIENCES PI STOCKHOLM PA PUBL DEPT BOX 50005, S-104 05 STOCKHOLM, SWEDEN SN 0281-1847 J9 PHYS SCRIPTA JI Phys. Scr. PY 1991 VL T34 BP 20 EP 22 DI 10.1088/0031-8949/1991/T34/003 PG 3 WC Physics, Multidisciplinary SC Physics GA FC397 UT WOS:A1991FC39700004 ER PT J AU SALAMON, MB BORCHERS, JA DU, R FLYNN, CP TSUI, F BEACH, RS ERWIN, RW RHYNE, JJ AF SALAMON, MB BORCHERS, JA DU, R FLYNN, CP TSUI, F BEACH, RS ERWIN, RW RHYNE, JJ TI MAGNETIC-PROPERTIES OF EPITAXIAL METALLIC SUPERLATTICES SO PHYSICA SCRIPTA LA English DT Article; Proceedings Paper CT 10TH GENERAL CONF OF THE CONDENSED MATTER DIV OF THE EUROPEAN PHYSICAL SOC CY APR 09-12, 1990 CL LISBON, PORTUGAL SP EUROPEAN PHYS SOC, DIV CONDENSED MATTER, PORTUGUESE PHYS SOC, DIV CONDENSED MATTER ID ER/Y SUPERLATTICES; Y SUPERLATTICES; ORDER AB Superlattices (SL's) and films of rare-earth elements have been grown by means of molecular-beam epitaxy with both the c-axis and b-axis as the growth direction. Long range order spanning many bilayers is observed for both Er-Y and Dy-Y SL's grown along the c-axis, but not for Dy-Y SL's with b-axis growth. This is explained in terms of the anisotropy of the effective exchange interaction. Suppression of the low-temperature ferromagnetic transition is found in all SL's and in Er films grown on Y. This is analyzed in terms of the changes in magnetoelastic energy imposed by epitaxy. Preliminary results on Er films grown on Lu support this picture. The suppression of ferromagnetism permits the study of modulated phases to lower temperatures and higher magnetic fields, with new intermediate phases appearing that are stabilized by the magnetic field. C1 UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801. NATL INST STAND & TECHNOL,DIV REACTOR RADIAT,GAITHERSBURG,MD 20899. RP SALAMON, MB (reprint author), UNIV ILLINOIS,DEPT PHYS,1110 W GREEN ST,URBANA,IL 61801, USA. NR 12 TC 2 Z9 2 U1 0 U2 0 PU ROYAL SWEDISH ACAD SCIENCES PI STOCKHOLM PA PUBL DEPT BOX 50005, S-104 05 STOCKHOLM, SWEDEN SN 0281-1847 J9 PHYS SCRIPTA JI Phys. Scr. PY 1991 VL T35 BP 163 EP 167 DI 10.1088/0031-8949/1991/T35/035 PG 5 WC Physics, Multidisciplinary SC Physics GA FN693 UT WOS:A1991FN69300036 ER PT J AU BEYER, HF INDELICATO, P FINLAYSON, KD LIESEN, D DESLATTES, RD AF BEYER, HF INDELICATO, P FINLAYSON, KD LIESEN, D DESLATTES, RD TI MEASUREMENT OF THE 1S LAMB SHIFT IN HYDROGENLIKE NICKEL SO PHYSICAL REVIEW A LA English DT Article ID PRECISION-MEASUREMENT; ION-BEAMS; SPECTROSCOPY AB The wavelength of the 2p3/2 --> 1s1/2 transition in hydrogenlike Ni27+ has been measured with an accuracy of 13 ppm. Bare Ni28+ ions of 11.4 MeV/amu as emerging from a carbon stripper foil were decelerated to 8.4, 6.7, 5.2, and 3.1 MeV/amu and dressed in a thin target gas by electron capture. The x rays were measured with a crystal spectrometer in Johann geometry employing a position-sensitive x-ray detector. The 1s Lamb shift in hydrogenlike nickel has been found to be 5.07 +/- 0.10 eV in good agreement with theory. C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. RP BEYER, HF (reprint author), GESELL SCHWERIONENFORSCH DARMSTADT MBH,POSTFACH 110552,W-6100 DARMSTADT,GERMANY. RI Indelicato, Paul/D-7636-2011 OI Indelicato, Paul/0000-0003-4668-8958 NR 15 TC 33 Z9 33 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD JAN 1 PY 1991 VL 43 IS 1 BP 223 EP 227 DI 10.1103/PhysRevA.43.223 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA ER519 UT WOS:A1991ER51900028 ER PT J AU MAYER, R LINDLE, DW SOUTHWORTH, SH COWAN, PL AF MAYER, R LINDLE, DW SOUTHWORTH, SH COWAN, PL TI DIRECT DETERMINATION OF MOLECULAR-ORBITAL SYMMETRY OF H2S USING POLARIZED X-RAY-EMISSION SO PHYSICAL REVIEW A LA English DT Article ID SYNCHROTRON RADIATION BEAMLINE; HIGH-ENERGY-RESOLUTION; INNER-VALENCE; PHOTO-IONIZATION; FLUORESCENCE; SPECTRA; PHOTOIONIZATION; SPECTROSCOPY; EXCITATION; RANGE AB X-ray emission from the molecule H2S is strongly polarized following excitation of a sulfur K-shell electron to an unoccupied subthreshold molecular orbital with a polarized x-ray beam. Changes in the polarization of the emission spectrum are observed as the incident beam's energy is swept across the subthreshold absorption resonance. The previously unresolved absorption resonance is shown experimentally to be primarily associated with a molecular orbital of b2 symmetry, but with a high-excitation-energy component due to an orbital with alpha-1 symmetry. Satellite emission intensity is shown to depend on the primary photon energy and is therefore associated with multivacancy effects and not with contamination, as previously suggested. RP MAYER, R (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 33 TC 37 Z9 37 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD JAN 1 PY 1991 VL 43 IS 1 BP 235 EP 241 DI 10.1103/PhysRevA.43.235 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA ER519 UT WOS:A1991ER51900030 ER PT J AU HAN, XL SCHINN, GW AF HAN, XL SCHINN, GW TI MAGNETIC-FIELD-INDUCED ALIGNMENT-TO-ORIENTATION CONVERSION IN SODIUM SO PHYSICAL REVIEW A LA English DT Article ID CIRCULAR-POLARIZATION AB We report a detailed investigation of excited-state alignment-to-orientation conversion in the presences of an external magnetic field. This counterintuitive phenomenon occurs under intermediate-coupling conditions. A weak, linearly polarized, cw laser beam was used to excite and align the Na 3P3/2 state in an atomic beam along the z direction. The degree of circular polarization of the resulting fluorescence was detected along the z direction as a function of magnetic-field strength. The spectrally integrated transitions originating from individual F levels of the 3S1/2 state yield a maximum circular-polarization fraction of approximately 40%; integrating the circular polarization over all the allowed 3S1/2-3P3/2 transitions gives rise to an approximately 8% effect. The results are predicted by the Breit formula, which is in excellent agreement with our observations. C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. UNIV COLORADO,BOULDER,CO 80309. NR 12 TC 9 Z9 9 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD JAN 1 PY 1991 VL 43 IS 1 BP 266 EP 271 DI 10.1103/PhysRevA.43.266 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA ER519 UT WOS:A1991ER51900034 ER PT J AU BRAUNSTEIN, SL CROUCH, DD AF BRAUNSTEIN, SL CROUCH, DD TI FUNDAMENTAL LIMITS TO OBSERVATIONS OF SQUEEZING VIA BALANCED HOMODYNE DETECTION SO PHYSICAL REVIEW A LA English DT Article ID DEGENERATE PARAMETRIC-AMPLIFIER; HETERODYNE-DETECTION; STATES; NOISE; LIGHT; AMPLIFICATION; PHASE AB A photodetector's electronic bandwidth is the frequency range over which beats between different frequencies in the input can be observed in the output. The output of a balanced homodyne detector, the prototypical device for detecting squeezed light, consists of beats between a signal to be measured and a local oscillator. Beats between the signal and quantum local-oscillator fluctuations lead to noise that degrades the observed squeezing. Through wide-band calculations, we show that this noise contains contributions from the entire signal bandwidth, even when this bandwidth is orders of magnitude larger than the detector's electronic bandwidth. This allows us to place an upper limit on the total power that can enter the detector's signal port (both signal and extraneous light) within the detector's optical bandwidth in order for a given level of squeezing to be observable. C1 UNIV COLORADO,NAT INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. RP BRAUNSTEIN, SL (reprint author), RES HOUSE,2639 E 4TH ST,TUCSON,AZ 85716, USA. RI Braunstein, Samuel/A-5501-2009 NR 21 TC 5 Z9 5 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD JAN 1 PY 1991 VL 43 IS 1 BP 330 EP 337 DI 10.1103/PhysRevA.43.330 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA ER519 UT WOS:A1991ER51900041 ER PT J AU FELDMAN, G KRAMER, LH WELLER, HR HAYWARD, E DODGE, WR AF FELDMAN, G KRAMER, LH WELLER, HR HAYWARD, E DODGE, WR TI ISOVECTOR GIANT QUADRUPOLE-RESONANCE OBSERVED IN SI-30(P-],GAMMA)P-31 SO PHYSICAL REVIEW C LA English DT Article ID MULTIPOLE RESONANCES; PROTON CAPTURE; EXCITATION; SCATTERING; O-16 AB The Si-30(p -->, gamma) P-31 reaction has been studied in the proton energy range E(p) = 20-36 MeV. Angular distributions of the cross section and the anlyzing power have been measured for gamma-ray transitions to the ground state and the first excited state of P-31 over the angular range 37.5-degrees-145-degrees at E(p) = 25.5 MeV. Legendre polynomial fits to both observables yield nonzero coefficients of order kappa = 3,4 suggesting the interference of E2 radiation with the dominant E1 radiation. A transition-matrix-element analysis of the data indicates that approximately 26% of the gamma-1 cross section at this energy arises from E2 radiation, whereas only 10% of the gamma-0 cross section can be attributed to E2 radiation. Direct-semidirect calculations give a direct E2 component of approximately 7% for both channels, suggesting significant excess E2 strength in the gamma-1 channel at this energy. The energy dependence of the 90-degrees analyzing power for gamma-1 shows a resonance structure near E(p) = 34 MeV which can be reproduced by a direct-semidirect calculation including an E2 resonance at E(GQR) = 38.6 MeV with a width of GAMMA-GQR = 5.0 MeV and a strength of 50% of the isovector E2 energy-weighted sum rule. The current results thus provide strong evidence for collective E2 strength roughly at the expected peak of the isovector giant quadrupole resonance built on the first excited state of P-31. C1 TRIANGLE UNIV NUCL LAB,DURHAM,NC 27706. NIST,GAITHERSBURG,MD 20899. RP FELDMAN, G (reprint author), DUKE UNIV,DURHAM,NC 27706, USA. NR 17 TC 3 Z9 3 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD JAN PY 1991 VL 43 IS 1 BP 223 EP 229 DI 10.1103/PhysRevC.43.223 PG 7 WC Physics, Nuclear SC Physics GA ET086 UT WOS:A1991ET08600027 ER PT J AU HANSON, DR YOUNG, M RYERSON, FJ AF HANSON, DR YOUNG, M RYERSON, FJ TI GROWTH AND CHARACTERIZATION OF SYNTHETIC IRON-BEARING OLIVINE SO PHYSICS AND CHEMISTRY OF MINERALS LA English DT Article ID FLOATING-ZONE METHOD; OXYGEN FUGACITY; SINGLE-CRYSTALS; UPPER MANTLE; FAYALITE FE2SIO4; INTERFACE SHAPE; OXIDES; STATE AB Single crystals of olivine were grown at 0.1 MPa total pressure in a floating-zone image furnace. Composition of crystals grown ranged from 67 mol% forsterite to 90 mol% forsterite. Improvements in the crystal growth technique allowed growth of large crystals (0.005 m diameter, 0.070 m length) with very low dislocation density, no visible bubbles, and no cracks. The most significant improvement was the addition of a platinum-wound resistance heater internal to the image furnace. This heater provided the dual improvements of better control over oxygen fugacity from a CO/CO2 gas mix and alteration of the crystal growth interface resulting in a significant reduction in crystal defects. No subgrain boundaries have been observed in crystals growth here and dislocation densities on the order of 10(8)-10(9) m-2 have been achieved. Iron concentration is nearly uniform across the diameter (0.005 m) of crystals and varies approximately 5 mol% along the crystal length (0.040 to 0.050 m). C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP HANSON, DR (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,POB 808,LIVERMORE,CA 94551, USA. NR 53 TC 12 Z9 12 U1 1 U2 7 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0342-1791 J9 PHYS CHEM MINER JI Phys. Chem. Miner. PY 1991 VL 18 IS 1 BP 53 EP 63 PG 11 WC Materials Science, Multidisciplinary; Mineralogy SC Materials Science; Mineralogy GA FV064 UT WOS:A1991FV06400008 ER PT J AU GLADU, PK PATTERSON, GW WIKFORS, GH CHITWOOD, DJ LUSBY, WR AF GLADU, PK PATTERSON, GW WIKFORS, GH CHITWOOD, DJ LUSBY, WR TI STEROLS OF SOME DIATOMS SO PHYTOCHEMISTRY LA English DT Article DE BACILLARIOPHYCEAE; DIATOMS; STEROLS; STIGMASTEROL; 28-ISOFUCOSTEROL; 24-METHYLENECHOLESTEROL; CAMPESTEROL; 22-DIHYDROBRASSICASTEROL AB Sterols were identified from seven species of axenically cultured diatoms which may be used for oyster food. Five species contained 24-methylenecholesterol as the major sterol. Stigmasterol was the principal sterol in Amphora coffaeformis while 24-ethylcholesterol was the major sterol in Navicula pelliculosa. Each of the four species of the order Centrales had 24-methylcholesterol, which was all 22-dihydrobrassicasterol (24-beta-methyl epimer). The 24-methyl-cholesterol from Nitzschia brevirostris (order Pennales) was all campesterol (24-alpha-methyl epimer). From this and previously published works on diatom sterols, it appears that sterols from the order Centrales are 24-beta-oriented and those from the order Pennales are 24-alpha-oriented. C1 LINDSEY WILSON COLL,DEPT BIOL,COLUMBIA,KY 42728. NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,MILFORD LAB,MILFORD,CT 06460. USDA ARS,BELTSVILLE AGR RES CTR,NEMATOL LAB,BELTSVILLE,MD 20705. USDA ARS,BELTSVILLE AGR RES CTR,INSECT NEUROBIOL & HORMONE LAB,BELTSVILLE,MD 20705. RP GLADU, PK (reprint author), UNIV MARYLAND,DEPT BOT,COLLEGE PK,MD 20742, USA. NR 20 TC 33 Z9 33 U1 2 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0031-9422 J9 PHYTOCHEMISTRY JI Phytochemistry PY 1991 VL 30 IS 7 BP 2301 EP 2303 DI 10.1016/0031-9422(91)83634-W PG 3 WC Biochemistry & Molecular Biology; Plant Sciences SC Biochemistry & Molecular Biology; Plant Sciences GA FT563 UT WOS:A1991FT56300040 ER PT J AU SCHEN, MA KOTOWSKI, K CLINE, J AF SCHEN, MA KOTOWSKI, K CLINE, J TI RIGID-ROD DERIVED AMORPHOUS POLYDIACETYLENES SO POLYMER LA English DT Article; Proceedings Paper CT SPECIALITY POLYMERS 90 CY AUG 08-10, 1990 CL JOHNS HOPKINS UNIV, BALTIMORE, MD HO JOHNS HOPKINS UNIV DE POLYDIACETYLENES; LIQUID-CRYSTAL MONOMERS; RIGID RODS; AMORPHOUS POLYMERS; X-RAY SCATTERING; MORPHOLOGY; ULTRAVIOLET, VISIBLE, NEAR-INFRA-RED SPECTROSCOPY ID CONJUGATED TRIPLE-BONDS; SOLID-STATE POLYMERIZATION; TOPOCHEMICAL REACTIONS; BIS-(PARA-TOLUENE SULFONATE); OPTICAL-PROPERTIES; SINGLE-CRYSTALS; DIACETYLENES; MONOMERS; 2.4-HEXADIIN-1.6-DIOL AB During our investigations of diacetylene monomers that exhibit thermotropic liquid-crystal phase behaviour, it was discovered that spontaneous and rapid thermal polymerization of the isotropic monomer melt takes place with some of the compounds examined. In the diacetylene monomer series containing symmetrically disubstituted 4-oxybenzylidene-4'-n-octylaniline (OBOA) side-groups attached to a butadiyne core via a polymethylene spacer, monomer liquid crystallinity is seen in the lower members of the series yet facile polymerization in the isotropic monomer melt is observed only in the lowest member of the series. This compound, 1OBOA, is believed to be rod-like in structure. It is this microstructural architecture that is believed to be responsible for imparting this unique combination of polymerization and polymer properties. Traditional molecularly flexible diacetylene monomers and the more flexible homologues in the nOBOA series do not show such facile melt-phase reactivity and do not allow the synthesis of purely amorphous conjugated polymer films. C1 NATL INST STAND & TECHNOL,DIV CERAM,GAITHERSBURG,MD 20899. RP SCHEN, MA (reprint author), NATL INST STAND & TECHNOL,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. NR 22 TC 18 Z9 18 U1 2 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1991 VL 32 IS 10 BP 1843 EP 1850 DI 10.1016/0032-3861(91)90374-R PG 8 WC Polymer Science SC Polymer Science GA FW642 UT WOS:A1991FW64200021 ER PT J AU MCKENNA, GB DOUGLAS, JF FLYNN, KM CHEN, YH AF MCKENNA, GB DOUGLAS, JF FLYNN, KM CHEN, YH TI THE LOCALIZATION MODEL OF RUBBER ELASTICITY - COMPARISON WITH TORSIONAL DATA FOR NATURAL-RUBBER NETWORKS IN THE DRY STATE SO POLYMER LA English DT Article DE LOCALIZATION MODEL; NATURAL RUBBER; NETWORKS; RUBBER ELASTICITY; STRAIN ENERGY FUNCTION; VALANIS-LANDEL FUNCTION ID FLORY-REHNER HYPOTHESIS; ENTANGLEMENTS; STRAIN; CHAIN AB Previously reported results from determinations of the first derivative of the elastic contribution to the free energy density function for dicumyl peroxide crosslinked natural rubber were analysed within the context of the Gaylord-Douglas 'localization model' of rubber elasticity. It was found that the dry state properties of the rubbers are well described by the localization model and that the non-classical contribution to rubber elasticity arising from the confinement of network chains by surrounding chains varies according to the theory, Specifically, a single measure of localization G(e) is required to fit the experimental results and the variation of this parameter follows the predictions of the theory, namely, G(e) is approximately equal to the rubbery plateau modulus at the limit of zero crosslinking and subsequently follows a linear dependence on crosslink density. The only other parameter in the model, the prefactor to a classical term, was set to the classical phantom value assuming a tetrafunctional network and assuming that each dicumyl peroxide molecule decomposed to form one crosslink. C1 CHINESE ACAD SCI,BEIJING,PEOPLES R CHINA. RP MCKENNA, GB (reprint author), NATL INST STAND & TECHNOL,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. RI McKenna, Gregory/O-1134-2013 OI McKenna, Gregory/0000-0002-5676-9930 NR 36 TC 9 Z9 9 U1 0 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1991 VL 32 IS 12 BP 2128 EP 2134 DI 10.1016/0032-3861(91)90035-H PG 7 WC Polymer Science SC Polymer Science GA GE084 UT WOS:A1991GE08400003 ER PT J AU SANTORE, MM DURAN, RS MCKENNA, GB AF SANTORE, MM DURAN, RS MCKENNA, GB TI VOLUME RECOVERY IN EPOXY GLASSES SUBJECTED TO TORSIONAL DEFORMATIONS - THE QUESTION OF REJUVENATION SO POLYMER LA English DT Article DE DILATOMETRY; PHYSICAL AGING; REJUVENATION; STRESS RELAXATION; TORSION; VOLUME RECOVERY ID STRUCTURAL RELAXATION; NEUTRON-SCATTERING; NETWORK STRUCTURE; POLYCARBONATE AB Torsional dilatometry was used to examine the mechanical properties of an epoxy glass during physical ageing, i.e. after a quench from above to slightly below the glass transition temperature. Volume changes in the sample were measured simultaneously with the viscoelastic responses in stress relaxation experiments as functions of the deformation magnitude. The torque relaxation obeys time-ageing time superposition where the shift factor, a(te), increases with ageing time until the sample reaches mechanical equilibrium at t* almost-equal-to 10(4)s, independent of the magnitude of the strain. In this epoxy, the torsional deformations induce volume expansions which relax on a time-scale similar to those of the torque relaxation. However, the volume recovery responses cannot be superposed at different ageing times by a simple shift along the time axis. Mechanical stimuli only momentarily disrupt the volume evolution following a quench. The underlying volume recovery kinetics, which are much slower than the mechanical torque or volume relaxation, remain unaltered. The facts that t* is independent of the magnitude of the strain and that the volume recovery after a quench remains unaltered, in spite of the imposition of mechanical deformations, support the argument that mechanical stimuli neither alter the underlying (non-equilibrium) thermodynamic state of the glass nor erase physical ageing. C1 NATL INST STAND & TECHNOL,DIV POLYMERS,GAITHERSBURG,MD 20899. RI McKenna, Gregory/O-1134-2013 OI McKenna, Gregory/0000-0002-5676-9930 NR 24 TC 92 Z9 92 U1 1 U2 17 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1991 VL 32 IS 13 BP 2377 EP 2381 DI 10.1016/0032-3861(91)90077-V PG 5 WC Polymer Science SC Polymer Science GA GF020 UT WOS:A1991GF02000013 ER PT J AU KIM, H WALDOW, DA HAN, CC QUI, TC YAMAMOTO, M AF KIM, H WALDOW, DA HAN, CC QUI, TC YAMAMOTO, M TI TEMPERATURE-DEPENDENCE OF PROBE DIFFUSION IN BULK POLYMER MATRICES SO POLYMER COMMUNICATIONS LA English DT Article DE DIFFUSION; FORCED RAYLEIGH SCATTERING; TEMPERATURE DEPENDENCE; PHOTODIMERIZABLE PROBE; POLYMER MELTS ID HOLOGRAPHIC GRATING RELAXATION; FORCED RAYLEIGH-SCATTERING; SELF-DIFFUSION; CAMPHORQUINONE; SPECTROSCOPY AB The temperature dependence of the diffusion coefficients for a photobleachable molecular probe in various polymer matrices has been studied using forced Rayleigh scattering (FRS). The probe molecule, a cyclophane derivative, is demonstrated to be a suitable probe for the FRS experiment due to the characteristics of the photodimerization reaction. The dynamic range of the FRS experiment enabled the measurement of the self diffusion coefficients over a range of nearly eight orders of magnitude. The temperature dependence of the self diffusion coefficients is well described by the Williams, Landel, Ferry (WLF) equation for all the polymer matrices studied. In addition, the data from the individual polymer matrices can be shifted to construct a universal curve which is also well described by the WLF equation. C1 NATL INST STAND & TECHNOL,DIV POLYMERS,GAITHERSBURG,MD 20899. KYOTO INST TECHNOL,DEPT POLYMER SCI & ENGN,SAKYO KU,KYOTO 606,JAPAN. KYOTO UNIV,DEPT POLYMER CHEM,KYOTO 606,JAPAN. OI Waldow, Dean/0000-0002-0588-4760 NR 27 TC 23 Z9 23 U1 0 U2 5 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-6476 J9 POLYM COMMUN PY 1991 VL 32 IS 4 BP 108 EP 112 PG 5 WC Polymer Science SC Polymer Science GA FA832 UT WOS:A1991FA83200004 ER PT J AU TSUTSUMI, N DAVIS, GT DEREGGI, AS AF TSUTSUMI, N DAVIS, GT DEREGGI, AS TI PROTONATION OF DYES IN FERROELECTRIC COPOLYMER OF VINYLIDENE FLUORIDE AND TRIFLUOROETHYLENE SO POLYMER COMMUNICATIONS LA English DT Article DE DYES; FERROELECTRIC COPOLYMERS; HF GENERATION; POLING; POLYVINYLIDENE FLUORIDE COPOLYMERS; UV-VISIBLE SPECTRA ID 52/48 MOL-PERCENT; CO-POLYMERS; CURIE TRANSITION; BEHAVIOR; SAMPLES AB This paper presents an investigation of changes in the u.v.-visible spectra of the dyes, 4-dimethylamino-4'-nitrostilbene and 4-amino-4'-nitroazobenzene dissolved in a copolymer of 75 mol% vinylidene fluoride (VDF) and 25 mol% trifluoroethylene (TrFE) as a result of electrical poling or pulsed laser irradiation. The original absorption diminishes and a distinct new absorption appears. This new absorption was identified as that due to the protonated form of the dyes suggesting that poling liberates HF from VDF-TrFE copolymer. Subsequent thermal stability of the protonated dyes is discussed. Pulsed radiation from a ruby laser produces comparable changes in spectra but in contrast to the changes imposed by poling, the original spectrum is recovered within 24 h. C1 NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,DIV POLYMERS,GAITHERSBURG,MD 20899. RP TSUTSUMI, N (reprint author), KYOTO INST TECHNOL,DEPT POLYMER SCI & ENGN,SAKYO KU,KYOTO 606,JAPAN. NR 12 TC 10 Z9 10 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-6476 J9 POLYM COMMUN PY 1991 VL 32 IS 4 BP 113 EP 115 PG 3 WC Polymer Science SC Polymer Science GA FA832 UT WOS:A1991FA83200005 ER PT J AU WU, WI SATIJA, SK MAJKRZAK, CF AF WU, WI SATIJA, SK MAJKRZAK, CF TI NEUTRON REFLECTIVITY STUDY OF A POLYMER SOLID INTERFACE SO POLYMER COMMUNICATIONS LA English DT Article DE NEUTRON REFLECTIVITY; INTERFACES ID X-RAY; SURFACES; COPOLYMERS AB The density distribution in a polymer melt in the vicinity of a solid surface was probed using neutron reflectivity measurements. Preliminary measurements were conducted on polychlorotrifluoroethylene in contact with a silicon single crystal. A significant difference in reflectivity was observed between the free silicon surface and the polymer-silicon interface. This difference can be attributed to the polymer density fluctuation near the interface. Dramatic changes in the reflectivity were observed as the sample temperature decreased below its melting point. A qualitative interpretation of the results based on surface enhanced crystallization of the polymer is presented. This work demonstrates that neutron reflectivity is a promising technique for probing polymer structure near a solid surface. C1 NATL INST STAND & TECHNOL,DIV REACTOR RADIAT,GAITHERSBURG,MD 20899. RP WU, WI (reprint author), NATL INST STAND & TECHNOL,DIV POLYMER,GAITHERSBURG,MD 20899, USA. NR 7 TC 7 Z9 7 U1 0 U2 3 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-6476 J9 POLYM COMMUN PY 1991 VL 32 IS 12 BP 363 EP 366 PG 4 WC Polymer Science SC Polymer Science GA GE083 UT WOS:A1991GE08300004 ER PT J AU PITTS, WM AF PITTS, WM TI WIND EFFECTS ON FIRES SO PROGRESS IN ENERGY AND COMBUSTION SCIENCE LA English DT Review ID HORIZONTAL ROLL VORTICES; DIFFUSION FLAMES; SURFACE; TUNNEL AB Urban mass fires are relatively infrequent events which have historically resulted in immense losses of life and property. Mass fires often have occurred as the result of natural disasters or warfare. The development of nuclear weapons has increased the likelihood of urban mass fires due to the high level of thermal radiation generated by a nuclear detonation. There are a large number of wind-fire interactions which are important in the initiation, development, and spread of these large fires. Dramatic examples include the extremely high winds and fire whirls which are often generated by such fires. Other effects such as wind-aided fire spread, fire brand spotting, and the effects of the atmospheric turbulent boundary layer can contribute significantly to the growth and behavior of mass fires. In this review characteristics of the two types of mass fire-fire storm and conflagration-are discussed. Brief histories of urban mass fire and research efforts on this topic are given. Models which have been developed to predict the initiation, development, spread, and behavior of mass fires following the detonation of a nuclear device in an urban environment are summarized. The current understanding of the fire processes which are believed to control mass fire behavior are reviewed. Particular emphasis is placed on the wind-fire interactions mentioned in the last paragraph. This discussion forms the basis for an analysis of the effectiveness of existing models for mass fire growth and behavior. It is concluded that the understanding of the important physical processes is incomplete and that models for mass fire development and behavior are likely to be subject to large and uncharacterized errors. The possibility of improving our understanding of the underlying physical and chemical processes utilizing reduced-scale experiments is assessed. C1 NATL INST STAND & TECHNOL,CTR FIRE RES,GAITHERSBURG,MD 20899. NR 196 TC 51 Z9 57 U1 7 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0360-1285 J9 PROG ENERG COMBUST JI Prog. Energy Combust. Sci. PY 1991 VL 17 IS 2 BP 83 EP 134 DI 10.1016/0360-1285(91)90017-H PG 52 WC Thermodynamics; Energy & Fuels; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA EX649 UT WOS:A1991EX64900001 ER PT J AU ALEXANDER, MH DAGDIGIAN, PJ JACOX, ME KOLB, CE MELIUS, CF RABITZ, H SMOOKE, MD TSANG, W AF ALEXANDER, MH DAGDIGIAN, PJ JACOX, ME KOLB, CE MELIUS, CF RABITZ, H SMOOKE, MD TSANG, W TI NITRAMINE PROPELLANT IGNITION AND COMBUSTION RESEARCH SO PROGRESS IN ENERGY AND COMBUSTION SCIENCE LA English DT Review ID LASER-INDUCED FLUORESCENCE; COUPLING MATRIX-ELEMENTS; POLYATOMIC TRANSIENT MOLECULES; STRUCTURE-CHANGING TRANSITIONS; QUANTUM-MECHANICAL TREATMENT; ANALYTIC GRADIENT METHODS; ELECTRONIC-ENERGY LEVELS; MCSCF/CL WAVE-FUNCTIONS; STATE ATOM COLLISIONS; ZERO-FIELD SPLITTINGS AB The efficient and successful design of new generations of highly energetic propellants based on evolving nitramine chemistry will require a thorough knowledge of the chemical and physical parameters controlling their ignition and combustion. The necessary level of insight can be attained and successfully embodied in the predictive computer models necessary for effective propellant design, development and testing activities if a coordinated, hierarchical program of theoretical modeling and confirming and supporting experiments is designed and properly executed. This paper reviews the current state of our understanding of the chemistry and physics of nitramine propellant ignition and combustion, and develops and motivates the basic research program necessary to put advanced nitramine propellant development on a firm and effective scientific basis. Confronting and solving problems involving complex physicochemical phenomena which intertwine complex heat, mass and radiative transfer processes with chemical kinetics is a challenge which physical and engineering scientists are becoming much more adept at meeting. Modern theoretical and experimental tools are now available which allow the design and utilization of much more comprehensive analytical models as well as their concomitant supporting and confirming experimental measurements. Significant recent progress on these types of complex problems in the fields of atmospheric chemistry, hydrocarbon combustion chemistry, chemical laser development and advanced materials processing lead us to believe that similar, focused efforts on advanced nitramine propellant development will be both timely and fruitful. C1 UNIV MARYLAND,DEPT CHEM,COLLEGE PK,MD 20740. JOHNS HOPKINS UNIV,DEPT CHEM,BALTIMORE,MD 21218. NATL INST STAND & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899. AERODYNE RES INC,CTR CHEM & ENVIRONM PHYS,BILLERICA,MA 01821. SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94550. YALE UNIV,DEPT MECH ENGN,NEW HAVEN,CT 06511. PRINCETON UNIV,DEPT CHEM,PRINCETON,NJ 08544. NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899. RI Kolb, Charles/A-8596-2009 NR 186 TC 64 Z9 65 U1 1 U2 10 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0360-1285 J9 PROG ENERG COMBUST JI Prog. Energy Combust. Sci. PY 1991 VL 17 IS 4 BP 263 EP 296 DI 10.1016/0360-1285(91)90005-8 PG 34 WC Thermodynamics; Energy & Fuels; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA FY775 UT WOS:A1991FY77500001 ER PT J AU KELLEHER, DE SALOMAN, EB COOPER, JW AF KELLEHER, DE SALOMAN, EB COOPER, JW TI AUTOIONIZING RESONANCES IN ELECTRIC-FIELDS SO RADIATION EFFECTS AND DEFECTS IN SOLIDS LA English DT Article; Proceedings Paper CT 1ST INTERNATIONAL CONF ON COHERENT RADIATION PROCESSES IN STRONG FIELDS CY JUN 18-22, 1990 CL CATHOLIC UNIV AMER, WASHINGTON, DC HO CATHOLIC UNIV AMER ID RYDBERG STATES; BA-I RP KELLEHER, DE (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1042-0150 J9 RADIAT EFF DEFECT S JI Radiat. Eff. Defects Solids PY 1991 VL 122 BP 665 EP 678 DI 10.1080/10420159108211498 PN 2 PG 14 WC Nuclear Science & Technology; Physics, Fluids & Plasmas; Physics, Condensed Matter SC Nuclear Science & Technology; Physics GA HN193 UT WOS:A1991HN19300015 ER PT J AU PAN, LW TAYLOR, KT CLARK, CW AF PAN, LW TAYLOR, KT CLARK, CW TI CONVERGENCE OF RAYLEIGH-SCHRODINGER PERTURBATION-THEORY IN CALCULATIONS OF MULTIPHOTON PROCESSES SO RADIATION EFFECTS AND DEFECTS IN SOLIDS LA English DT Article; Proceedings Paper CT 1ST INTERNATIONAL CONF ON COHERENT RADIATION PROCESSES IN STRONG FIELDS CY JUN 18-22, 1990 CL CATHOLIC UNIV AMER, WASHINGTON, DC HO CATHOLIC UNIV AMER ID ATOMIC-HYDROGEN; LASER FIELDS; IONIZATION; THRESHOLD C1 NATL INST STAND & TECHNOL,CTR ATOM MOLEC & OPT PHYS,GAITHERSBURG,MD 20899. UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL,DEPT MATH,EGHAM TW20 0EX,SURREY,ENGLAND. RP PAN, LW (reprint author), UNIV MARYLAND,INST PHYS SCI & TECHNOL,COLLEGE PK,MD 20742, USA. RI Pan, Laura/A-9296-2008; Clark, Charles/A-8594-2009 OI Pan, Laura/0000-0001-7377-2114; Clark, Charles/0000-0001-8724-9885 NR 6 TC 0 Z9 0 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1042-0150 J9 RADIAT EFF DEFECT S JI Radiat. Eff. Defects Solids PY 1991 VL 122 BP 725 EP 741 DI 10.1080/10420159108211502 PN 2 PG 17 WC Nuclear Science & Technology; Physics, Fluids & Plasmas; Physics, Condensed Matter SC Nuclear Science & Technology; Physics GA HN193 UT WOS:A1991HN19300019 ER PT J AU ALSHEIKHLY, M MCLAUGHLIN, WL AF ALSHEIKHLY, M MCLAUGHLIN, WL TI THE MECHANISMS OF THE REDUCTION REACTIONS OF CR(VI) IN THE RADIOLYSIS OF ACIDIC POTASSIUM AND SILVER DICHROMATE SOLUTIONS IN THE PRESENCE OR ABSENCE OF ACETIC-ACID SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID DOSIMETER; RADICALS; RANGE; KGY AB The mechanisms and the kinetics of reactions in deoxygenated and oxygen-saturated aqueous solutions of potassium dichromate in the range of pH 0.4-0.8, in the presence and absence of acetic acid, were investigated by pulse and steady-state radiolysis. Computer simulation of reaction mechanisms was compared with experimental kinetics data for solutions containing silver dichromate and acetic acid. It was found that carboxymethyl reduces Cr(VI) to Cr(V) with a rate constant of 1.8 x 10(8) M-1s-1, while carboxymethylperoxyl does not reduce Cr(VI). Hydroperoxyl reduces Cr(VI) to Cr(V), but at a much lower rate constant of < 10(6) M-1 s-1. The oxidation-reduction reaction between radiolytically produced Cr(V) and Ag(II) was measured and found to have a rate constant of 1.0 x 10(8) M-1 s-1. The mechanism for the enhanced stability of Cr(VI) in the presence of Ag+ was studied in the light of the kinetics and the reactivity of the Ag(II) with the intermediate free radicals occurring in this system. The present finding help elucidate the mechanisms of the dichromate dosimeter, its dose-rate independent response and its stability. RP ALSHEIKHLY, M (reprint author), NBS,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. NR 27 TC 21 Z9 22 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PY 1991 VL 38 IS 2 BP 203 EP 211 PG 9 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA FX750 UT WOS:A1991FX75000012 ER PT J AU KHAN, HM FARAHANI, M MCLAUGHLIN, WL AF KHAN, HM FARAHANI, M MCLAUGHLIN, WL TI A RADIOCHROMIC FILM DOSIMETER FOR GAMMA-RADIATION IN THE ABSORBED-DOSE RANGE 0.1-10-KGY SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID RAY RESPONSE; DYE FILMS AB A commercially available leuco-dye film (FWT-63-02), having a thickness of 0.55 mm, has been investigated spectrophotometrically for its characteristics as a radiochromic dosimeter and for its potential use in food-irradiation applications. The gamma-ray irradiation of the nearly colorless, transparent film induces blue color with an absorption maximum at 600 nm. The increase in absorbance at 600 nm per unit thickness of film (DELTA-A mm-1) is linear with dose in the dose range up to 8 kGy, with a slope of 0.91 mm-1.kGy-1. After a modest additional increase during the first day following irradiation, the radiation-induced color is stable when stored at room temperature at least for 5 weeks. The response slope is 16% higher when stored at 60-degrees-C, however, after the initial 1-day increase it is stable for several weeks when stored at that temperature. The response of the dosimeter is independent of dose rate in the range 0.5-170 Gy min-1. C1 NATL INST STAND & TECHNOL,CTR RADIAT RES,GAITHERSBURG,MD 20899. RI Khan, Hasan/A-3132-2009; OI Khan, Hasan/0000-0002-2207-6992 NR 18 TC 7 Z9 7 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PY 1991 VL 38 IS 4 BP 395 EP 398 PG 4 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA GH844 UT WOS:A1991GH84400008 ER PT J AU WINK, DA DESROSIERS, MF AF WINK, DA DESROSIERS, MF TI UNUSUAL SPIN-TRAP CHEMISTRY FOR THE REACTION OF HYDROXYL RADICAL WITH THE CARCINOGEN N-NITROSODIMETHYLAMINE SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID AQUEOUS-SOLUTIONS; NITROSAMINES; DENITROSATION AB The reaction of the potent carcinogen N-nitrosodimethylamine (NDMA) with hydroxyl radical generated via radiolysis was studied using EPR techniques. Attempts to spin trap NDMA radical intermediates with 3,5-dibromo-4-nitrosobenzene sulfonate (DBNBS) produced only unusual DBNBS radicals. One of these radicals was shown to be generated by both reaction of DBNBS with nitric oxide, and direct oxidation of DBNBS with an inorganic oxidant (.Br2-). Another DBNBS radical was identified as a sulfite spin adduct resulting from the degradation of DBNBS by a NDMA reactive intermediate. In the absence of DBNBS, hydroxyl radical reaction with NDMA gave the dimethylnitroxide radical. Unexpectedly, addition of DBNBS to a solution containing dimethylnitroxide produced an EPR spectrum nearly identical to that of NDMA solutions with DBNBS added before radiolysis. A proposed mechanism accounting for these observations is presented. C1 NATL INST STAND & TECHNOL,DIV IONIZING RADIAT,GAITHERSBURG,MD 20899. NCI,FREDERICK CANC RES & DEV CTR,COMPARAT CARCINOGENESIS LAB,CHEM SECT,FREDERICK,MD 21702. NR 15 TC 8 Z9 8 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PY 1991 VL 38 IS 5 BP 467 EP 472 PG 6 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA GK954 UT WOS:A1991GK95400006 ER PT J AU HUIE, RE CLIFTON, CL NETA, P AF HUIE, RE CLIFTON, CL NETA, P TI ELECTRON-TRANSFER REACTION-RATES AND EQUILIBRIA OF THE CARBONATE AND SULFATE RADICAL-ANIONS SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID FLASH-PHOTOLYSIS; PULSE-RADIOLYSIS; AQUEOUS-SOLUTION; REDOX POTENTIALS; RATE CONSTANTS; SO4; OXIDATION; AZIDE; IONS AB Electron transfer reactions of the carbonate radical anion with azide, bromide, and hypochlorite ions have been studied by pulse radiolysis. From the equilibrium Br2.- + CO32- reversible 2Br- + CO3.- and the known redox potential for Br2.-/2Br- = 1.62 V vs NHE we derive E = 1.59 V for CO3.-/CO3.-. From this value and the equilibrium CO3.- + ClO- reversible CO32- + ClO. we derive E = 1.41 V for ClO./ClO-. The equilibrium reaction SO4.- + Cl- reversible SO42- + Cl. was studied by laser photolysis, by using 248 nm excitation of S2O82- to produce SO4.- and examining the rate of reaction of this radical with Cl- in the presence of varying concentrations of SO42-. By modeling the reactions taking place in this system, we derive the rate constant for the reaction of Cl. with SO42- (2.5 x 10(8) dm3 mol-1 s-1 at 0.1 mol dm-3 ionic strength), and from the known rate constant for reaction of SO4.- Cl- (4.7 x 10(8) dm3 mol-1 s-1 at the same ionic strength) we derive the equilibrium constant. From the known redox potential for Cl./Cl- = 2.41 V we derive E = 2.43 V for SO4.-/SO42-. RP HUIE, RE (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. RI Huie, Robert/A-5645-2010 NR 20 TC 208 Z9 212 U1 3 U2 31 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PY 1991 VL 38 IS 5 BP 477 EP 481 PG 5 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA GK954 UT WOS:A1991GK95400008 ER PT J AU DOMEN, SR AF DOMEN, SR TI EMISSIVITY OF ALUMINIZED MYLAR SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID CALORIMETER AB Commercially-available aluminized Mylar, 6-mu-m thick, is a useful material for reducing heat losses by thermal radiation in some calorimeters, such as those constructed of graphite or A-150 plastic. The present experiment shows that clean aluminized layers have a thermal emissivity near 0.044. RP DOMEN, SR (reprint author), NATL INST STAND & TECHNOL,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. NR 6 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PY 1991 VL 37 IS 2 BP 199 EP 201 PG 3 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA EY560 UT WOS:A1991EY56000006 ER PT J AU SOARES, CG DARLEY, PJ CHARLES, MW BAUM, JW AF SOARES, CG DARLEY, PJ CHARLES, MW BAUM, JW TI HOT PARTICLE DOSIMETRY USING EXTRAPOLATION CHAMBERS AND RADIOCHROMIC FOILS SO RADIATION PROTECTION DOSIMETRY LA English DT Article; Proceedings Paper CT WORKSHOP ON SKIN DOSIMETRY : RADIOLOGICAL PROTECTION ASPECTS OF SKIN IRRADIATION CY MAY 13-15, 1991 CL DUBLIN, IRELAND SP COMMISS EUROPEAN COMMUNITIES, NUCL ENERGY BOARD IRELAND, EUROPEAN RADIAT DOSIMETRY GRP AB Results are presented of a comparison between extrapolation chambers and radiochromic foils for the dosimetry of small radioactive ('hot') particles. While it is possible to measure average dose over arbitrary areas using both methods, the radiochromic foil method has the advantage of displaying full two-dimensional dose distributions with a single measurement. With multiple layers of foils, three dimensional dose distributions are measurable. The foils used employ a new, relatively sensitive emulsion which is 6-8-mu-m thick and coated on a 0.1 mm thick polyester base. They require no processing; upon irradiation a very fine-grained, stable, blue image forms which is nearly linear over a absorbed dose range of 0.05 to 1.2 kGy. The readout is done with a scanning laser microdensitometer at a wavelength of 633 nm; a 100-mu-m diameter spot size is used which can be stepped in two dimensions in increments as small as 40-mu-m. The foils used for this study were calibrated using Sr-90/Y-90 beta particle spectra and were found to respond nearly identically to Co-60 gamma rays. Results from such radiochromic foil measurements are compared with measurements with the same source using an extrapolation chamber. Pitfalls in the use of extrapolation chambers for these surface dose rate measurements are explored, including the effect of non-linear current relative to air gap functions on extrapolated slopes. RP SOARES, CG (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD, USA. NR 0 TC 9 Z9 9 U1 0 U2 0 PU NUCLEAR TECHNOLOGY PUBL PI ASHFORD PA PO BOX 7, ASHFORD, KENT, ENGLAND TN23 1YW SN 0144-8420 J9 RADIAT PROT DOSIM JI Radiat. Prot. Dosim. PY 1991 VL 39 IS 1-3 BP 55 EP 59 PG 5 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA HD882 UT WOS:A1991HD88200009 ER PT B AU SALOMAN, EB AF SALOMAN, EB BE PARKS, JE OMENETTO, N TI THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY RESONANCE IONIZATION SPECTROSCOPY RESONANCE IONIZATION MASS-SPECTROMETRY DATA SERVICE SO RESONANCE IONIZATION SPECTROSCOPY 1990 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 5TH INTERNATIONAL SYMP ON RESONANCE IONIZATION SPECTROSCOPY AND ITS APPLICATION CY SEP 16-21, 1990 CL VARESE, ITALY SP CNR, COMITATO NAZL SCI CHIM, ENTE NAZL ENERGIA ATOM, IST NAZL FIS NUCL, ENVIRONM INST, ELICAM, INSTRUMENT SOC AMER ITALY, LASER OPTRON, MICROCONTROLE, ATOM SCI RP SALOMAN, EB (reprint author), NATL INST STAND & TECHNOL,DIV ELECTRON & OPT PHYS,GAITHERSBURG,MD 20899, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-046-6 J9 INST PHYS CONF SER PY 1991 VL 114 BP 45 EP 48 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical; Spectroscopy SC Optics; Physics; Spectroscopy GA BT64D UT WOS:A1991BT64D00011 ER PT B AU LI, Q MCILRATH, TJ SALOMAN, EB LUCATORTO, TB AF LI, Q MCILRATH, TJ SALOMAN, EB LUCATORTO, TB BE PARKS, JE OMENETTO, N TI RIS STUDIES OF AUTOIONIZATION IN CALCIUM SO RESONANCE IONIZATION SPECTROSCOPY 1990 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 5TH INTERNATIONAL SYMP ON RESONANCE IONIZATION SPECTROSCOPY AND ITS APPLICATION CY SEP 16-21, 1990 CL VARESE, ITALY SP CNR, COMITATO NAZL SCI CHIM, ENTE NAZL ENERGIA ATOM, IST NAZL FIS NUCL, ENVIRONM INST, ELICAM, INSTRUMENT SOC AMER ITALY, LASER OPTRON, MICROCONTROLE, ATOM SCI RP LI, Q (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 2 Z9 2 U1 1 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-046-6 J9 INST PHYS CONF SER PY 1991 VL 114 BP 55 EP 58 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical; Spectroscopy SC Optics; Physics; Spectroscopy GA BT64D UT WOS:A1991BT64D00013 ER PT J AU WIEMAN, CE HOLLBERG, L AF WIEMAN, CE HOLLBERG, L TI USING DIODE-LASERS FOR ATOMIC PHYSICS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Review ID FREQUENCY-MODULATION SPECTROSCOPY; CAVITY SEMICONDUCTOR-LASER; OPTICAL HETERODYNE SPECTROSCOPY; CONTINUOUS TUNING RANGE; FUNDAMENTAL STABILITY LIMITS; DISTRIBUTED FEEDBACK LASER; TEMPERATURE CW OPERATION; HIGH-FINESSE RESONATOR; FABRY-PEROT RESONATOR; DOPPLER-FREE SPECTRUM AB We present a review of the use of diode lasers in atomic physics with an extensive list of references. We discuss the relevant characteristics of diode lasers and explain how to purchase and use them. We also review the various techniques that have been used to control and narrow the spectral outputs of diode lasers. Finally we present a number of examples illustrating the use of diode lasers in atomic physics experiments. C1 UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO 80303. RP WIEMAN, CE (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTOPHYS,BOULDER,CO 80309, USA. NR 233 TC 531 Z9 548 U1 11 U2 70 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD JAN PY 1991 VL 62 IS 1 BP 1 EP 20 DI 10.1063/1.1142305 PG 20 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EQ607 UT WOS:A1991EQ60700001 ER PT J AU MARASCO, R ARON, W AF MARASCO, R ARON, W TI EXPLOSIVE EVOLUTION - THE CHANGING ALASKA GROUNDFISH FISHERY SO REVIEWS IN AQUATIC SCIENCES LA English DT Article DE ALASKA; GROUNDFISH; FISHERY; GROWTH; DEVELOPMENT; PROBLEMS AB Since the passage of the Magnuson Act of 1976, the Alaska groundfish fishery has undergone explosive change. In about a decade, the fishery has shifted from an activity largely pursued by foreign fleets to one dominated by U.S. fishermen. Problems associated with this transition include the creation of a new foreign fishery in international water which is based on stocks originating in either the U.S. or Soviet Extended Economic Zones, problems of allocation between different domestic user groups, especially in regard to the bycatch of species that are target species for other fisheries and the possible impact of these expanding fisheries on stocks of marine mammals as well as the interaction between other species of fish and shellfish. Management of these fisheries is heavily dependent upon scientific advice and the ability of the scientists to provide such advice to the regulatory bodies, including the regional Fishery Management Council. With some exceptions, the Council membership lacks scientific training, thus creating a major problem of communication. The fishery management issue is further complicated by the uncertainty of the relationships between changes caused by man (particularly fishing) vs. those caused by environmental variability. RP MARASCO, R (reprint author), ALASKA FISHERIES SCI CTR,7600 SAND POINT WAY NE,SEATTLE,WA 98115, USA. NR 0 TC 2 Z9 2 U1 1 U2 1 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, BOCA RATON, FL 33431 SN 0891-4117 J9 REV AQUAT SCI PY 1991 VL 4 IS 4 BP 299 EP 315 PG 17 WC Fisheries; Marine & Freshwater Biology; Oceanography SC Fisheries; Marine & Freshwater Biology; Oceanography GA FW740 UT WOS:A1991FW74000001 ER PT J AU KALNAY, E PETERSEN, R KANAMITSU, M BAKER, WE AF KALNAY, E PETERSEN, R KANAMITSU, M BAKER, WE TI UNITED-STATES OPERATIONAL NUMERICAL WEATHER PREDICTION SO REVIEWS OF GEOPHYSICS LA English DT Review ID 4-DIMENSIONAL DATA ASSIMILATION; NATIONAL-METEOROLOGICAL-CENTER; ADJOINT VORTICITY EQUATION; STEP-MOUNTAIN COORDINATE; SHALLOW-WATER EQUATIONS; VARIATIONAL ASSIMILATION; MONSOON REGION; SKILL AB In this paper we review recent improvements in regional and global operational numerical weather prediction (NWP) at the US National Meteorological Center (NMC), the resulting evolution in forecast skill performance, and main areas of current research. The changes expected to occur during the next five years are also outlined. RP KALNAY, E (reprint author), NOAA,NATL METEOROL CTR,WORLD WEATHER BLDG,WASHINGTON,DC 20233, USA. RI Kalnay, Eugenia/F-4393-2010 NR 72 TC 3 Z9 3 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 8755-1209 J9 REV GEOPHYS JI Rev. Geophys. PY 1991 VL 29 SU S BP 104 EP 114 PN 1 PG 11 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA FX961 UT WOS:A1991FX96100015 ER PT J AU STRANGE, WE ZILKOSKI, DB AF STRANGE, WE ZILKOSKI, DB TI REFERENCE NETWORKS - (CONTROL SURVEYS) SO REVIEWS OF GEOPHYSICS LA English DT Review ID GLOBAL POSITIONING SYSTEM; GPS; DEFORMATION; BASELINE RP STRANGE, WE (reprint author), NOAA,NATL OCEAN SERV,NATL GEODET SURVEY,CHARTING & GEODET SERV,N-CG,6001 EXECUT BLDG,ROCKVILLE,MD 20852, USA. NR 44 TC 0 Z9 0 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 8755-1209 J9 REV GEOPHYS JI Rev. Geophys. PY 1991 VL 29 SU S BP 157 EP 161 PN 1 PG 5 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA FX961 UT WOS:A1991FX96100022 ER PT J AU BORNMANN, PL AF BORNMANN, PL TI SOLAR-X-RAY PHYSICS SO REVIEWS OF GEOPHYSICS LA English DT Review ID CORONAL MASS EJECTIONS; NONLOCAL THERMAL TRANSPORT; FLAT CRYSTAL SPECTROMETER; HIGH SPECTRAL RESOLUTION; 7 2-RIBBON FLARE; IMPULSIVE PHASE; ENERGY-RELEASE; BRIGHT POINTS; ACTIVE REGIONS; LINE RATIOS AB This is a review of the research in solar x-ray phenomena that has been done by American scientists in the last four years. This research ranges from new instrumentation, such as multilayer mirrors and high spectral resolution detectors, to refined theories and observations of the flare process. Contributions have been made in our understanding of x-ray bright points, solar active regions, solar flares, and flare-associated phenomena. The hard x-ray spectra during the impulsive phase of solar flares have been examined in greater detail and found, among other things, to fit a double power law. Models for the hard x-ray emissions have focused largely on electron acceleration by field-aligned currents, although other models such as proton beams, waves, and neutral beams have also been investigated. Correlations between the hard x-ray emission and radio, ultraviolet, and gamma-ray emissions have been used to provide additional constraints on the flare models. The process known as chromospheric evaporation, which is seen as blueshifts of the soft x-ray line profiles, has been explored through further analysis of the observations and the development of new models. New atomic calculations have been performed so that further information about the plasma properties during the decay phase of solar flares can be derived from the soft x-ray line emissions. Spatially resolved observations have been used to identify new x-ray features such as flaring arches and giant post-flare arches. Other topics of investigation included the energy in solar flares and the long-term variations in solar indices, the 155-day periodicity of solar flares, and the distribution of flares on the solar disk. Finally, associations have been made between the solar x-ray emission and the phenomena of coronal mass ejections and solar energetic particles, as well as the effect of this radiation on the earth's upper atmosphere. RP NOAA, SPACE ENVIRONM LAB, 325 BROADWAY R-E-SE, BOULDER, CO 80303 USA. NR 169 TC 0 Z9 0 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 8755-1209 EI 1944-9208 J9 REV GEOPHYS JI Rev. Geophys. PY 1991 VL 29 SU S BP 915 EP 924 PN 2 PG 10 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA FX962 UT WOS:A1991FX96200045 ER PT J AU PARNAS, RS PHELAN, FR AF PARNAS, RS PHELAN, FR TI THE EFFECT OF HETEROGENEOUS POROUS-MEDIA ON MOLD FILLING IN RESIN TRANSFER MOLDING SO SAMPE QUARTERLY-SOCIETY FOR THE ADVANCEMENT OF MATERIAL AND PROCESS ENGINEERING LA English DT Article AB A model for fluid flow in the resin transfer molding (RTM) process is developed. The model takes into account two competing flow processes which occur simultaneously in the fibrous reinforcements commonly used as RTM preforms: the macroscopic flow of the resin through the preform and the impregnation of the individual fiber bundles which make up the preform. The model predicts that the competition between the two flow processes during the filling of dry preforms leads to higher values of the effective permeability than would be obtained in saturated preforms. This effect is accompanied by a transient phenomena in which mold inlet pressure continues to rise after the flow front has reached the outlet of the mold, eventually reaching a steady value equal to the inlet pressure for flow through a saturated porous media. These predictions agree qualitatively with experimental data and have implications regarding the use of D'arcy's law to model transient mold filling processes with dry, heterogeneous preforms. Additionally, the fiber impregnation calculations allow for the estimation of void volume in the cured part. RP PARNAS, RS (reprint author), NATL INST STAND & TECHNOL,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. NR 0 TC 92 Z9 97 U1 1 U2 9 PU SAMPE PUBLISHERS PI COVINA PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 SN 0036-0821 J9 SAMPE QUART PD JAN PY 1991 VL 22 IS 2 BP 53 EP 60 PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EZ236 UT WOS:A1991EZ23600007 ER PT J AU CAHN, JW AF CAHN, JW TI MODELING THE EVOLUTION OF STRUCTURE IN UNSTABLE SOLID-SOLUTION PHASES BY DIFFUSIONAL MECHANISMS SO SCANDINAVIAN JOURNAL OF METALLURGY LA English DT Article DE DIFFUSIONAL MECHANISMS; PHASE CHANGES; SOLID SOLUTION PHASES ID BOUNDARY AB Certain phase changes evolve entirely by atom rearrangements among neighboring sites in a crystal structure, and can be understood through the formulation and solution of a realistic diffusion equation. A portion of the 1956 thesis by Mats Hillert, published in 1961 under the title "A Solid-solution Model for Inhomogeneous Systems", is the seminal theoretical paper in this subject. It deals with solid solutions that have atoms confined to lattice points with a one-dimensional concentration variation, that are unstable to ordering or phase separation, and that evolve entirely by atom exchanges. The results of the theory were applied to his experimental observations on a spinodal alloy. Subsequent theoretical studies have extended the theory to include many factors that make the theory more realistic. Among them is another of Mats Hillert's themes; the introduction of the effects of stresses that result from the diffusional processes. RP NATL INST STAND & TECHNOL, MAT SCI & ENGN LAB, GAITHERSBURG, MD 20899 USA. NR 37 TC 8 Z9 8 U1 0 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0371-0459 J9 SCAND J METALL JI Scand. J. Metall. PY 1991 VL 20 IS 1 BP 9 EP 17 PG 9 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA FL075 UT WOS:A1991FL07500002 ER PT J AU RAO, KSMSR STEWART, R TODD, P AF RAO, KSMSR STEWART, R TODD, P TI ELECTROKINETIC DEMIXING OF 2-PHASE AQUEOUS POLYMER SYSTEMS .2. SEPARATION RATES OF POLYETHYLENE-GLYCOL MALTODEXTRIN MIXTURES SO SEPARATION SCIENCE AND TECHNOLOGY LA English DT Article AB Aqueous two-phase extraction techniques have been successfully applied to the purification of enzymes and cells. However, due to their similar physical properties, immiscible aqueous phases do not separate rapidly. A method for enhanced demixing of aqueous two-phase systems in a thermostated vertical electrophoresis column was therefore studied. The effects of the electric field strength, field polarity, temperature, phase composition, and buffer concentration on demixing rates of a polyethylene glycol-maltodextrin (PEG-MDX) system were quantitatively measured. At normal electrical polarity (anode at the top of the column), using a maximum practicable field strength of 26.4 V/cm, the demixing rate was twice that in zero electric field at 25 +/- 2-degrees-C. With polarity reversed (anode at the bottom, electric field opposing gravitational settling) at a field of 26.4 V/cm, demixing was 5.5 times as fast as in zero field. Reduction of the temperature from 25 to 14-degrees-C caused an increase in demixing rate in the absence of an applied field, while reduced temperature did not change the rate when using electric fields of either normal or reverse polarity. Increased phosphate buffer concentration substantially increased the demixing rate for PEG-MDX mixtures. C1 NATL INST STAND & TECHNOL,325 BROADWAY,BOULDER,CO 80303. NR 13 TC 10 Z9 10 U1 2 U2 4 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0149-6395 J9 SEPAR SCI TECHNOL JI Sep. Sci. Technol. PY 1991 VL 26 IS 2 BP 257 EP 267 DI 10.1080/01496399108050470 PG 11 WC Chemistry, Multidisciplinary; Engineering, Chemical SC Chemistry; Engineering GA FH950 UT WOS:A1991FH95000008 ER PT J AU GASS, SI TORRENCE, SR AF GASS, SI TORRENCE, SR TI ON THE DEVELOPMENT AND VALIDATION OF MULTICRITERIA RATINGS - A CASE-STUDY SO SOCIO-ECONOMIC PLANNING SCIENCES LA English DT Article C1 NATL INST STAND & TECHNOL,DIV PUBL AFFAIRS,GAITHERSBURG,MD 20899. RP GASS, SI (reprint author), UNIV MARYLAND,COLL BUSINESS & MANAGEMENT,COLLEGE PK,MD 20742, USA. NR 7 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0038-0121 J9 SOCIO ECON PLAN SCI JI Socio-Econ. Plan. Sci. PY 1991 VL 25 IS 2 BP 133 EP 142 DI 10.1016/0038-0121(91)90011-F PG 10 WC Economics; Management; Operations Research & Management Science SC Business & Economics; Operations Research & Management Science GA GK844 UT WOS:A1991GK84400006 ER PT J AU FULLER, SK AF FULLER, SK TI EVALUATING FIRE PROTECTION INVESTMENT DECISIONS FOR HOMEOWNERS SO SOCIO-ECONOMIC PLANNING SCIENCES LA English DT Article ID PSYCHOLOGY C1 NATL INST STAND & TECHNOL,CTR COMP & APPL MATH,COMP & APPL MATH LAB,OFF APPL ECON,GAITHERSBURG,MD 20899. NR 20 TC 3 Z9 3 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0038-0121 J9 SOCIO ECON PLAN SCI JI Socio-Econ. Plan. Sci. PY 1991 VL 25 IS 2 BP 143 EP 154 DI 10.1016/0038-0121(91)90012-G PG 12 WC Economics; Management; Operations Research & Management Science SC Business & Economics; Operations Research & Management Science GA GK844 UT WOS:A1991GK84400007 ER PT J AU GARCIA, HA FARNIK, F AF GARCIA, HA FARNIK, F TI STEREOSCOPIC MEASUREMENTS OF FLARES FROM PHOBOS AND GOES SO SOLAR PHYSICS LA English DT Article ID CORONAL MASS EJECTIONS; SOLAR-FLARES AB A unique approach to observing the Sun steroscopically in soft X-rays was afforded by the PHOBOS mission to Mars during 1989. Concurrent measurements of two flares from two widely separated spacecraft allowed us to obtain estimates of each flare's height above the solar surface. The requirement was that the flare had to be over the limb as observed by one spacecraft and on the visible disk as viewed by the other. The first flare occurred on March 4, when the active region was beyond the east limb as observed by GOES (at Earth), but on the disk as viewed by PHOBOS (at Mars). The second flare, on March 15, was on the disk for GOES, but beyond the west limb for PHOBOS. We believe that the same extraordinary active region, 5395, was responsible for both events. Soft X-ray photometers on each spacecraft contained two broad-band channels. The two-channel data were used to compute flare (assumed isothermal) plasma temperatures. The sharply peaked flare on March 4 indicated essentially identical maximum electron temperatures (approximately 13 Mk) at both spacecraft, confirming that the hottest plasma was indeed concentrated at the highest (unocculted) part of the loop. However, in the case of the long-duration March 15 flare, whose loop was in apparent upwards motion, the partially occulted flare indicated substantially cooler temperatures. This finding suggests that the hot core of this flare may have been below the limb, or that the partially occulted flux originated not from post-flare loops but from an independent, higher X-ray arch. The PHOBOS and GOES X-ray photometers were intercompared in July 1988, soon after the PHOBOS launch, to establish relative calibration parameters. C1 CZECHOSLOVAK ACAD SCI, INST ASTRON, CS-25165 ONDREJOV, CZECHOSLOVAKIA. RP NOAA, SPACE ENVIRONM LAB, BOULDER, CO 80303 USA. RI Farnik, Frantisek/G-9010-2014 NR 20 TC 4 Z9 4 U1 0 U2 0 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0038-0938 EI 1573-093X J9 SOL PHYS JI Sol. Phys. PD JAN PY 1991 VL 131 IS 1 BP 137 EP 148 DI 10.1007/BF00151750 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EW070 UT WOS:A1991EW07000012 ER PT J AU SALOMAN, EB AF SALOMAN, EB TI A RESONANCE IONIZATION SPECTROSCOPY RESONANCE IONIZATION MASS-SPECTROMETRY DATA SERVICE .2. DATA SHEETS FOR AL, CA, CS, CR, CO, CU, KR, MG, HG AND NI SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article ID ONE-ATOM DETECTION; TUNABLE DYE LASER; ENERGETIC ION-BOMBARDMENT; FLAME SAMPLING CELL; OF-FLIGHT DETECTION; LOW-LEVEL DETECTION; L2 CI CALCULATION; ISOTOPIC COMPOSITIONS; ELEMENTS 1981; OSCILLATOR-STRENGTHS AB A data service has been established at the National Institute of Standards and Technology to provide the necessary information to apply the techniques of Resnonance Ionization Spectroscopy (RIS) and Resonance Ionization Mass Sepctrometry (RIMS) to routine use in analytical chemistry. This service collects and calculates the relevant atomic data, chooses appropriate resonance ionization schemes, and indicates pertinent operating details of successful RIMS studies. The first group of data sheets was published previously covering the elements As, B, Cd, Ge, Au, Fe, Pb, Si and Zn. The second group of data sheets is presented here. It covers the elements Al, Ca, Cs, Cr, Co, Cu, Kr, Mg, Hg and Ni. Others will be published periodically. Reprints of RIS/RIMS work are solicited so that those efforts may be included in future data sheets. RP NATL INST STANDARDS & TECHNOL, DIV ELECTR & OPT PHYS, GAITHERSBURG, MD 20899 USA. NR 162 TC 57 Z9 58 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 3 BP 319 EP 378 DI 10.1016/0584-8547(91)80035-2 PG 60 WC Spectroscopy SC Spectroscopy GA EZ879 UT WOS:A1991EZ87900002 ER PT J AU WIESE, WL AF WIESE, WL TI SPECTROSCOPIC DIAGNOSTICS OF LOW-TEMPERATURE PLASMAS - TECHNIQUES AND REQUIRED DATA SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article ID ATOMIC TRANSITION-PROBABILITIES; EXPERIMENTAL STARK WIDTHS; SPECTRAL-LINES; PERIOD 1976; ARGON ARC; LIFETIMES; SHIFTS AB An overview of plasma diagnostic techniques based on atomic spectroscopy is given. Two widely used spectroscopic techniques-the Boltzmann-plot or slope method for excitation temperature measurements and Stark width determinations for electron density measurements-are discussed in detail. Since these techniques depend critically on the availability of accurate atomic data, especially transition probabilities and Stark broadening parameters, the numerical data are reviewed with respect to availability and quality. For the important spectra of Ar I and Fe I, tables of the most accurate transition probabilities-typically with uncertainties of +/- 10% or less-are given, which are based on very recent critical compilations. Some specific data needs are pointed out which would significantly contribute to improve the accuracy of the diagnostic techniques. RP WIESE, WL (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 62 TC 46 Z9 49 U1 2 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 6-7 BP 831 EP 841 DI 10.1016/0584-8547(91)80084-G PG 11 WC Spectroscopy SC Spectroscopy GA GE730 UT WOS:A1991GE73000011 ER PT J AU EPSTEIN, MS SLAVIN, W AF EPSTEIN, MS SLAVIN, W TI REFERENCE MATERIALS AND REFERENCE METHODS - PREFACE SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Editorial Material C1 PERKIN ELMER CORP,NORWALK,CT 06856. RP EPSTEIN, MS (reprint author), NATL INST STAND & TECHNOL,DIV INORGAN ANALYT RES,CHEM SCI & TECHNOL LAB,GAITHERSBURG,MD 20899, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1569 EP 1569 DI 10.1016/0584-8547(91)80159-Z PG 1 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100001 ER PT J AU MOODY, JR EPSTEIN, MS AF MOODY, JR EPSTEIN, MS TI DEFINITIVE MEASUREMENT METHODS SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article AB This paper describes the use of 'definitive' methods in the certification of reference materials. The definitions, variations, and limitations of definitive methods are considered and related to analytical methods considered to be definitive. RP MOODY, JR (reprint author), NATL INST STAND & TECHNOL,DIV INORGAN ANALYT RES,CHEM SCI & TECHNOL LAB,GAITHERSBURG,MD 20899, USA. NR 10 TC 36 Z9 37 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1571 EP 1575 DI 10.1016/0584-8547(91)80160-5 PG 5 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100002 ER PT J AU RASBERRY, SD GILLS, TE AF RASBERRY, SD GILLS, TE TI THE CERTIFICATION, DEVELOPMENT AND USE OF STANDARD REFERENCE MATERIALS SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article AB Analytical measurements are increasingly important to industrial quality assurance (QA) and to critical decision making in such fields as clinical, nutritional and environmental chemistry. Several factors are important to attaining analyses that are reliably accurate. Some of these include well-designed methods, trained staff, adequate instrumentation, reliable reference materials, laboratory QA procedures, and periodic proficiency testing. This paper will focus on the role of reference materials in accurate chemical analysis. Fundamental attributes of reference materials will be discussed together with details on how limits of uncertainty are established for certified values. Examples will be drawn from the results of one of the NISTs oldest biological Standard Reference Materials and two of its most recently certified SRMs. Matrices for these types of materials are very wide-ranging, including orchard leaves, river sediment and human serum. RP RASBERRY, SD (reprint author), NATL INST STAND & TECHNOL,MEASUREMENT SERV,GAITHERSBURG,MD 20899, USA. NR 6 TC 7 Z9 7 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1577 EP 1582 DI 10.1016/0584-8547(91)80161-U PG 6 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100003 ER PT J AU EPSTEIN, MS AF EPSTEIN, MS TI THE INDEPENDENT METHOD CONCEPT FOR CERTIFYING CHEMICAL-COMPOSITION REFERENCE MATERIALS SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article AB Certified values for chemical-composition reference materials are often derived from results generated by two or more independent and reliable measurement methods. This paper examines the concept of method independence from both philosophical and practical standpoints, drawing examples from actual certification data. Methods are compared based on specific criteria and an attempt is made to define the degree of independence necessary to qualify methods as independent. RP EPSTEIN, MS (reprint author), NATL INST STAND & TECHNOL,DIV INORGAN ANALYT RES,CHEM SCI & TECHNOL LAB,GAITHERSBURG,MD 20899, USA. NR 13 TC 27 Z9 27 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1583 EP 1591 DI 10.1016/0584-8547(91)80162-V PG 9 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100004 ER PT J AU WATTERS, RL AF WATTERS, RL TI THE USE OF STANDARD REFERENCE MATERIALS FOR QUALITY ASSURANCE IN INDUCTIVELY COUPLED PLASMA OPTICAL-EMISSION AND ATOMIC-ABSORPTION SPECTROMETRY SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article AB To ensure that a chemical measurement process yields accurate results, well characterized control materials such as Standard Reference Materials (SRMs) should be analysed. For inductively coupled plasma optical emission spectrometry (ICP-OES) and atomic absorption spectrometry (AAS) methods, the SRM should be similar in chemical matrix to the unknown test material of interest so that the SRM provides similar sources of potential systematic error. Such sources of error may include incomplete dissolution, loss of volatile analyte, and chemical matrix interferences in the plasma, flame or electrothermal atomizer. In addition, the SRM should be chosen so that the analyte levels match the corresponding estimated levels in the unknown and so that the uncertainties in the certified values are small enough to provide a useful test for accuracy. The measurement process itself must be designed so that sources of random error can be evaluated. Each potential source of random error should be replicated to provide for a test of its significance. The resulting data will yield estimates for these components of variance, and the overall standard error can then be calculated. Examples of experimental designs and typical results from an ICP analysis of an SRM are described. Procedures using commonly available software for evaluating components of variance and calculating the mean, standard error, and the effective number of degrees of complex variance component designs are also presented. The results of such an approach are then applied to ascertaining whether or not bias in the analytical results is detected. RP WATTERS, RL (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 5 TC 9 Z9 9 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1593 EP 1605 DI 10.1016/0584-8547(91)80163-W PG 13 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100005 ER PT J AU SCHILLER, SB EBERHARDT, KR AF SCHILLER, SB EBERHARDT, KR TI COMBINING DATA FROM INDEPENDENT CHEMICAL-ANALYSIS METHODS SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article AB Data from several different chemical analysis methods must often be combined to form an overall mean value and uncertainty. However, the data from these different methods frequently do not "agree" when a statistical comparison is done, so that taking a simple average of all of the individual observations would be inappropriate. Computation of a weighted mean and corresponding uncertainty that take into consideration the random measurement error within each method as well as the disagreement between methods will be described. An example of this approach, applied to the certification of NIST's Standard Reference Materials, will be given. RP SCHILLER, SB (reprint author), NATL INST STAND & TECHNOL,A337 ADM BLDG,GAITHERSBURG,MD 20899, USA. NR 4 TC 40 Z9 40 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1607 EP 1613 DI 10.1016/0584-8547(91)80164-X PG 7 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100006 ER PT J AU MESSMAN, JD SMITH, MV AF MESSMAN, JD SMITH, MV TI OPTICAL TRANSMITTANCE STANDARD REFERENCE MATERIALS FOR ULTRAVIOLET AND VISIBLE MOLECULAR ABSORPTION SPECTROMETRY SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article ID QUARTZ AB Transmittance accuracy of ultraviolet/visible (UV/Vis) molecular absorption spectrometers is a necessary condition for meaningful intra- and inter-laboratory exchange and comparison of analytical data for research, quality control (QC) and regulatory compliance. Several important instrumental parameters may affect the analytical results of transmittance measurements. Included among these parameters is the accuracy of the transmittance scale which is determined ultimately by the linearity of the detection and signal processing system when other instrumental parameters-including wavelength accuracy, adequate spectral bandpass, stray radiation and photometric precision-are in control. Five optical transmittance Standard Reference Materials (SRMs) for monitoring instrument stability and for verifying the accuracy of the transmittance (or absorbance) scale of the spectrometer are described. As with any optical filter standard for verifying UV/Vis spectrometers, the transmittance SRMs must be utilized in a judicious manner for meaningful and valid QC measurements and data interpretation. The analytical attributes and limitations of the five transmittance SRMs are discussed to illustrate some of the measurement concerns for using optical filter standards to verify the proper functioning of UV/Vis absorption spectrometers. RP MESSMAN, JD (reprint author), NATL INST STAND & TECHNOL,CHEM SCI & TECHNOL LAB,DIV INORGAN ANALYT RES,GAITHERSBURG,MD 20899, USA. NR 29 TC 7 Z9 7 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PY 1991 VL 46 IS 12 BP 1653 EP 1662 DI 10.1016/0584-8547(91)80168-3 PG 10 WC Spectroscopy SC Spectroscopy GA GR861 UT WOS:A1991GR86100010 ER PT J AU PRESERN, V KOROUSIC, B HASTIE, JW AF PRESERN, V KOROUSIC, B HASTIE, JW TI THERMODYNAMIC CONDITIONS FOR INCLUSIONS MODIFICATION IN CALCIUM TREATED STEEL SO STEEL RESEARCH LA English DT Article ID METALLURGY AB The presented paper discussed the fundamental or common thermodynamical relations between calcium-treated aluminium-killed molten steel and non-metallic inclusions. The phase and chemical analyses of inclusions have proven that the correctness of calcium addition can be confirmed and that the analysis of those phenomena can show the effects of previous calcium treatment of aluminium-killed steel. To make the process of manufacturing quality steel successful the factor affecting the necessary calcium addition should be taken into consideration already during the process. Steel, containing too much calcium could have CaS inclusions with a high melting point, while too low contents of calcium cause unsatisfactory modification of solid alumina inclusions to complex liquid calcium-aluminate inclusions. This research included the examination of thermodynamic relations in calcium addition and its reactions with solid Al2O3 inclusions. A detailed analysis of the CaO-Al2O3 binary system established the modification of solid alumina inclusions via the following intermediate phases: CaO.6Al2O3, CaO.2Al2O3, CaO.Al2O3 and liquid phase 12CaO.7Al2O3 and finally again solid CaO, at 1873 K (1600-degrees-C). The investigation discusses the further research engaged in consideration of CaO- and Al2O3-activities change in each of the quoted intermediate phases. The system as a whole includes details of oxygen activities. C1 NIST,GAITHERSBURG,MD. RP PRESERN, V (reprint author), INST MET & TECHNOL,LJUBLJANA,YUGOSLAVIA. NR 21 TC 21 Z9 28 U1 0 U2 10 PU VERLAG STAHLEISEN MBH PI DUSSELDORF PA SOHNSTRABE 65, D-40237 DUSSELDORF, GERMANY SN 0177-4832 J9 STEEL RES JI Steel Res. PY 1991 VL 62 IS 7 BP 289 EP 295 PG 7 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA FX875 UT WOS:A1991FX87500003 ER PT J AU SEO, DJ SMITH, JA AF SEO, DJ SMITH, JA TI RAINFALL ESTIMATION USING RAIN-GAGES AND RADAR - A BAYESIAN-APPROACH .1. DERIVATION OF ESTIMATORS SO STOCHASTIC HYDROLOGY AND HYDRAULICS LA English DT Article DE CO-KRIGING; PARAMETER UNCERTAINTY; BAYESIAN ESTIMATION; RADAR RAINFALL; GAUGE RAINFALL AB Procedures for estimating rainfall from radar and raingage observations are constructed in a Bayesian framework. Given that the number of raingage measurements is typically very small, mean and variance of gage rainfall are treated as uncertain parameters. Under the assumption that log gage rainfall and log radar rainfall are jointly multivariate normal, the estimation problem is equivalent to lognormal co-kriging with uncertain mean and variance of the gage rainfall field. The posterior distribution is obtained under the assumption that the prior for the mean and inverse of the variance of log gage rainfall is normal-gamma 2. Estimate and estimation variance do not have closed-form expressions, but can be easily evaluated by numerically integrating two single integrals. To reduce computational burden associated with evaluating sufficient statistics for the likelihood function, an approximate form of parameter updating is given. Also, as a further approximation, the parameters are updated using raingage measurements only, yielding closed-form expressions for estimate and estimation variance in the Gaussian domain. With a reduction in the number of radar rainfall data in constructing covariance matrices, computational requirements for the estimation procedures are not significantly greater than those for simple co-kriging. Given their generality, the estimation procedures constructed in this work are considered to be applicable in various estimation problems involving an undersampled main variable and a densely sampled auxiliary variable. C1 PRINCETON UNIV,DEPT CIVIL ENGN & OPERAT RES,PRINCETON,NJ 08540. RP SEO, DJ (reprint author), NOAA,NATL WEATHER SERV,HYDROL RES LAB,SILVER SPRING,MD 20910, USA. NR 15 TC 13 Z9 14 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0931-1955 J9 STOCH HYDROL HYDRAUL JI Stoch. Hydrol. Hydraul. PY 1991 VL 5 IS 1 BP 17 EP 29 DI 10.1007/BF01544175 PG 13 WC Engineering, Environmental; Engineering, Civil; Statistics & Probability; Water Resources SC Engineering; Mathematics; Water Resources GA FD232 UT WOS:A1991FD23200002 ER PT J AU SEO, DJ SMITH, JA AF SEO, DJ SMITH, JA TI RAINFALL ESTIMATION USING RAIN-GAGES AND RADAR - A BAYESIAN-APPROACH .2. AN APPLICATION SO STOCHASTIC HYDROLOGY AND HYDRAULICS LA English DT Article DE RADAR RAINFALL; GAUGE RAINFALL; PARAMETER UNCERTAINTY; BAYESIAN ESTIMATION AB In Seo and Smith (this issue), a set of estimators was built in a Bayesian framework to estimate rainfall depth at an ungaged location using raingage measurements and radar rainfall data. The estimators are equivalent to lognormal co-kriging (simple co-kriging in the Gaussian domain) with uncertain mean and variance of gage rainfall. In this paper, the estimators are evaluated via cross-validation using hourly radar rainfall data and simulated hourly raingage data. Generation of raingage data is based on sample statistics of actual raingage measurements and radar rainfall data. The estimators are compared with lognormal co-kriging and nonparametric estimators. The Bayesian estimators are shown to provide some improvement over lognormal co-kriging under the criteria of mean error, root mean square error, and standardized mean square error. It is shown that, if the prior could be assessed more accurately, the margin of improvement in predicting estimation variance could be larger. In updating the uncertain mean and variance of gage rainfall, inclusion of radar rainfall data is seen to provide little improvement over using raingage data only. C1 PRINCETON UNIV,DEPT CIVIL ENGN & OPERAT,PRINCETON,NJ 08540. RP SEO, DJ (reprint author), NOAA,NATL WEATHER SERV,HYDROL RES LAB,SILVER SPRING,MD 20910, USA. NR 15 TC 12 Z9 13 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0931-1955 J9 STOCH HYDROL HYDRAUL JI Stoch. Hydrol. Hydraul. PY 1991 VL 5 IS 1 BP 31 EP 44 DI 10.1007/BF01544176 PG 14 WC Engineering, Environmental; Engineering, Civil; Statistics & Probability; Water Resources SC Engineering; Mathematics; Water Resources GA FD232 UT WOS:A1991FD23200003 ER PT J AU GILLEN, G KAISER, DL WALLACE, JS AF GILLEN, G KAISER, DL WALLACE, JS TI IMAGE DEPTH PROFILING SIMS - AN EVALUATION FOR THE ANALYSIS OF LIGHT-ELEMENT DIFFUSION IN YBA2CU3O7-X SINGLE-CRYSTAL SUPERCONDUCTORS SO SURFACE AND INTERFACE ANALYSIS LA English DT Article ID OXYGEN; GROWTH AB An analytical strategy for quantifying the diffusion of O-18 in small, melt-grown single-crystal YBa2Cu3O7-x superconductors by image depth profiling SIMS is presented. This technique was used to obtain data for both in-depth (along the c-axis) and lateral (in the ab-plane) diffusion from one superconducting crystal. Cross-sectional images, generated from the image depth profiling data, revealed features of the diffusion processes that would not have been apparent in a standard depth profile. Retrospective selected area depth profiling was used to remove the influence of background species, edge effects and imperfections in the crystals, resulting in processed depth profiles with greater dynamic range. These techniques also were used to study the diffusion behavior of fluorine that was unexpectedly incorporated into the superconducting crystals during preparation. Finally, the influence of detector artifacts on the analytical results was evaluated. C1 NIST,DIV CERAM,GAITHERSBURG,MD 20899. RP GILLEN, G (reprint author), NIST,CTR ANALYT CHEM,GAITHERSBURY,MD 20899, USA. NR 10 TC 10 Z9 10 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0142-2421 J9 SURF INTERFACE ANAL JI Surf. Interface Anal. PD JAN PY 1991 VL 17 IS 1 BP 7 EP 14 DI 10.1002/sia.740170105 PG 8 WC Chemistry, Physical SC Chemistry GA EV059 UT WOS:A1991EV05900003 ER PT J AU CHI, PH SIMONS, DS ROITMAN, P AF CHI, PH SIMONS, DS ROITMAN, P TI QUANTITATIVE-ANALYSIS OF IMPURITIES IN SIMOX SAMPLES USING SECONDARY ION MASS-SPECTROMETRY SO SURFACE AND INTERFACE ANALYSIS LA English DT Article ID IMPLANTATION; SILICON AB Silicon films produced by the SIMOX process (separation by implanted oxygen) must be annealed at high temperature to remove the crystal damage introduced during implantation of the high oxygen dose. Different annealing gases, temperatures and times have been investigated. In such processes, various impurities present in the high-temperature ceramic furnace tube, as well as annealing gas species, may be incorporated into the samples. Secondary ion mass spectrometry (SIMS) is used as a quantitative tool to analyze the diffusion the diffusion of tube components and gases into annealed SIMOX samples. Samples prepared for this investigation were annealed in nitrogen and argon at temperatures ranging from 1250 to 1350-degrees-C. We found that most impurities are present at low levels and are generally trapped in the surface oxide that is grown during the anneal. SIMS analyses of SIMOX samples annealed in nitrogen showed that nitrogen tends to collect in both the surface oxide and buried oxide layers, piling up at the oxide/silicon interfaces. C1 NIST,CTR ELECTR & ELECT ENGN,GAITHERSBURG,MD 20899. RP CHI, PH (reprint author), NIST,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 7 TC 2 Z9 2 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0142-2421 J9 SURF INTERFACE ANAL JI Surf. Interface Anal. PD JAN PY 1991 VL 17 IS 1 BP 57 EP 61 DI 10.1002/sia.740170113 PG 5 WC Chemistry, Physical SC Chemistry GA EV059 UT WOS:A1991EV05900011 ER PT J AU HANSON, HP AF HANSON, HP TI CLOUD ALBEDO CONTROL BY CLOUD-TOP ENTRAINMENT SO TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY LA English DT Article AB Marine stratus and stratocumulus clouds exert a considerable influence on the Earth's heat budget, mainly due to their high albedos relative to the ocean surface. It is therefore important to understand the processes that control the radiative properties of these extensive cloud systems, particularly during daylight hours. Aircraft measurements of a stratocumulus cloud deck taken around local noon during the 1987 field phase of the First International Satellite Cloud Climatology Project Regional Experiment are the topic of this paper. A mixing line analysis of data from a series of flight tracks across a strong gradient in cloud albedo provides evidence that variations in the water vapor content of the air above the marine inversion can be responsible for the albedo change. The implications of this unexpected result for climate modeling are discussed. RP HANSON, HP (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,ATMOSPHER & CLIMATE DYNAM PROGRAM,BOULDER,CO 80309, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0280-6495 J9 TELLUS A JI Tellus Ser. A-Dyn. Meteorol. Oceanol. PD JAN PY 1991 VL 43 IS 1 BP 37 EP 48 DI 10.1034/j.1600-0870.1991.00004.x PG 12 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA EU910 UT WOS:A1991EU91000004 ER PT J AU MORASSUTTI, MP AF MORASSUTTI, MP TI CLIMATE MODEL SENSITIVITY TO SEA ICE ALBEDO PARAMETERIZATION SO THEORETICAL AND APPLIED CLIMATOLOGY LA English DT Article ID GENERAL-CIRCULATION MODEL; SURFACE ALBEDO; SPECTRAL ALBEDO; ARCTIC OCEAN; SNOW; BALANCE AB Three one-year experimental simulations with the National Center for Atmospheric Research Community Climate Model (NCAR CCM) were performed with three sea ice albedo parameterizations and compared with control run results to examine their impact on polar surface temperature, planetary albedo and clouds. The first integration utilized sea ice albedos of the Arctic Basin for the spring and summer of 1977 derived from defence Meteorological Satellite Imagery (DMSP). The second simulation employed prescribed lead and melt pond fractions and an albedo weighting scheme. The third simulation involved the coupling of an interactive sea ice/snow albedo parameterization made a function of surface state. Results show that prescribed, and assumed "true" satellite sea ice albedos produced higher planetary albedos than those calculated with the standard CCM sea ice albedo scheme in the control run. As a result, lower temperatures (up to 0.5 K) and increased cloudiness are generated for the Arctic region. The standard CCM sea ice albedo scheme is used as an adjustment to maintain "normal" temperatures for the polar oceans. The radiative impact of leads and melt ponds warmed sea ice regions only for short time periods. The third scheme generated markedly lower planetary albedos (reductions of 0.07 to 0.17) and higher surface temperatures (up to 2.0 K) than control values. The CCM simulates a gradual decrease in spring and summer Arctic cloud cover whereas observations show a sharp spring increase. Examination of the CCM code, particularly the cloud parameterization, is required to address this problem. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. NR 46 TC 8 Z9 8 U1 0 U2 3 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-798X J9 THEOR APPL CLIMATOL JI Theor. Appl. Climatol. PY 1991 VL 44 IS 1 BP 25 EP 36 DI 10.1007/BF00865548 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA GA120 UT WOS:A1991GA12000003 ER PT J AU KREIDER, KG CLINE, JP SHAPIRO, A MORELAND, J AF KREIDER, KG CLINE, JP SHAPIRO, A MORELAND, J TI HIGH-TC SUPERCONDUCTING FILMS ON SILICON-WAFERS SO THIN SOLID FILMS LA English DT Article ID BA-CU-O; THIN-FILMS; TARGET; TEMPERATURE; DEPOSITION AB High T(c) (above 77 K) thin film superconductors have potential applications for use in high speed computers and in sensors. This work describes the approach we have used to form the thin films by sputter deposition on silicon wafers. The procedure includes planar magnetron sputtering of the 1:2:3 compounds from a single stoichiometric target using an intermediate reactively sputtered ZrO2 barrier layer. YBa2Cu3O(x), GdBa2Cu3O(x), and EuBa2Cu3O(x) films were formed followed by heat treatments to form the perovskite and convert to the superconducting orthorhombic phase. The as-sputtered converted films were examined by energy dispersive X-ray analysis to confirm their composition and by X-ray diffraction to confirm the orthorhombic phase formation. The results of cryogenic testing of the resistivity vs. temperature is also presented to define the optimum temperatures and conditions for annealing of the films. C1 NATL INST STAND & TECHNOL,INST MAT SCI & ENGN,GAITHERSBURG,MD 20899. NATL INST STAND & TECHNOL,CTR ELECTR & ELECT ENGN,BOULDER,CO. RP KREIDER, KG (reprint author), NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,GAITHERSBURG,MD 20899, USA. NR 19 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0040-6090 J9 THIN SOLID FILMS JI Thin Solid Films PD JAN PY 1991 VL 195 IS 1-2 BP 117 EP 125 DI 10.1016/0040-6090(91)90264-X PG 9 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA EW073 UT WOS:A1991EW07300013 ER PT J AU VISITSERNGTRAKUL, S KRAUSE, SJ CORDTS, BF ROITMAN, P AF VISITSERNGTRAKUL, S KRAUSE, SJ CORDTS, BF ROITMAN, P TI EFFECT OF DOSE AND ANNEALING CONDITIONS ON THE STRUCTURE OF SILICON-ON-INSULATOR MATERIAL IMPLANTED WITH OXYGEN AT HIGH-TEMPERATURE AND AT HIGH-CURRENT DENSITY SO VACUUM LA English DT Article; Proceedings Paper CT 1ST SIOMX WORKSHOP ( SEPARATION BY IMPLANTATION OF OXYGEN ) ( SWI-88 ) CY NOV 07-08, 1988 CL UNIV SURREY, GUILDFORD, ENGLAND SP COUNCIL EUROPEAN COMMUNITY, EUROPEAN COLLABORAT PROGRAMME, I B I S TECHNOL HO UNIV SURREY AB Conventional and high resolution electron microscopy were used to study the structure of silicon-on-insulator material synthesized at higher temperature and higher current density (1 mA cm-2) than are conventionally used. As dose increases from 0.3 to 1.8 x 10(18) cm-2 the buried oxide thickens to 0.3-mu-m and trails of bubbles form at the surface which increase in size to 14 nm and depth to 0.15-mu-m. The defect structure in the top Si layer, consisting of multiple stacking faults located only near the buried oxide interface, remains constant with dosage. During the early stages of annealing, the bubbles and the multiply faulted defects are eliminated and large (20-30 nm) precipitates with lateral dislocations from near the buried oxide interface. Increasing the temperature from 1250 to 1350-degrees-C, caused precipitates to grow and to incorporate into the oxide layer. The pinned dislocations are eliminated simultaneously with the incorporated precipitates. This results in a defect density of only 10(5) cm-2, which is three to four orders less than material implanted at lower temperatures and medium current density. C1 IBIS TECHNOL CORP,DANVERS,MA 01923. NIST,DIV SEMICOND ELECTR,GAITHERSBURG,MD 20899. RP VISITSERNGTRAKUL, S (reprint author), ARIZONA STATE UNIV,DEPT CHEM BIO & MAT ENGN,TEMPE,AZ 85287, USA. NR 9 TC 3 Z9 3 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0042-207X J9 VACUUM JI Vacuum PY 1991 VL 42 IS 5-6 BP 353 EP 358 DI 10.1016/0042-207X(91)90053-L PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA EV617 UT WOS:A1991EV61700005 ER PT J AU STEBBING, ARD DETHLEFSEN, V THURBERG, F AF STEBBING, ARD DETHLEFSEN, V THURBERG, F TI REPORT ON THE ICES IOC NORTH-SEA SEAGOING WORKSHOP SO WATER SCIENCE AND TECHNOLOGY LA English DT Editorial Material C1 INST KURSTEN & BINNENFISCHEREI,TOXICOL LAB,W-2190 CUXHAVEN,GERMANY. MILFORD LAB,NEFC,NMFS,MILFORD,CT 06460. RP STEBBING, ARD (reprint author), PLYMOUTH MARINE LAB,PROSPECT PL,PLYMOUTH PL1 3DH,ENGLAND. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1223 J9 WATER SCI TECHNOL JI Water Sci. Technol. PY 1991 VL 24 IS 10 BP R21 EP R23 PG 3 WC Engineering, Environmental; Environmental Sciences; Water Resources SC Engineering; Environmental Sciences & Ecology; Water Resources GA GY501 UT WOS:A1991GY50100004 ER PT J AU BARBORAK, DM DICKINSON, DW MADIGAN, RB AF BARBORAK, DM DICKINSON, DW MADIGAN, RB TI PC-BASED EXPERT SYSTEMS AND THEIR APPLICATIONS TO WELDING SO WELDING JOURNAL LA English DT Article C1 OHIO STATE UNIV,WELDING ENGN,COLUMBUS,OH 43210. NATL INST STAND & TECHNOL,WELDING ENGN,GOLDEN,CO. RP BARBORAK, DM (reprint author), EDISON WELDING INST,COLUMBUS,OH 43212, USA. NR 35 TC 2 Z9 2 U1 0 U2 0 PU AMER WELDING SOC PI MIAMI PA PO BOX 351040, MIAMI, FL 33135 SN 0043-2296 J9 WELD J JI Weld. J. PD JAN PY 1991 VL 70 IS 1 BP 29 EP 38 PG 10 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA EQ614 UT WOS:A1991EQ61400003 ER PT B AU SCHMUTZ, W KOENINGSBERGER, G UNDERHILL, AB OWOCKI, SP SCHULTELADBECK, RE POLLOCK, AMT AF SCHMUTZ, W KOENINGSBERGER, G UNDERHILL, AB OWOCKI, SP SCHULTELADBECK, RE POLLOCK, AMT BE VANDERHUCHT, KA HIDAYAT, B TI OBSERVATIONS VERSUS ATMOSPHERIC MODELS OF WR STARS SO WOLF-RAYET STARS AND INTERRELATIONS WITH OTHER MASSIVE STARS IN GALAXIES SE IAU SYMPOSIA LA English DT Proceedings Paper CT 143RD SYMP OF THE INTERNATIONAL ASTRONOMICAL UNION ON WOLF-RAYET STARS AND INTERRELATIONS WITH OTHER MASSIVE STARS IN GALAXIES CY JUN 18-22, 1990 CL SANUR, INDONESIA SP INT ASTRON UNION, REPUBLIC INDONESIA, DEPT EDUC & CULTURE, DIRECTORATE GEN HIGHER EDUC ID WOLF-RAYET STARS; LARGE MAGELLANIC CLOUD; FE-V; OPTICAL SPECTROPHOTOMETRY; ULTRAVIOLET-SPECTRUM; IUE OBSERVATIONS; EMISSION-LINES; HOT STARS; WN STARS; WC STARS RP SCHMUTZ, W (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. RI Schmutz, Werner/B-4153-2014 OI Schmutz, Werner/0000-0003-1159-5639 NR 0 TC 2 Z9 2 U1 0 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA DORDRECHT BN 0-7923-1086-1 J9 IAU SYMP PY 1991 VL 143 BP 39 EP 52 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BV33N UT WOS:A1991BV33N00004 ER PT B AU HILLIER, DJ POLLOCK, AMT UNDERHILL, AB LANGER, N AF HILLIER, DJ POLLOCK, AMT UNDERHILL, AB LANGER, N BE VANDERHUCHT, KA HIDAYAT, B TI THEORY OF WOLF-RAYET ATMOSPHERES SO WOLF-RAYET STARS AND INTERRELATIONS WITH OTHER MASSIVE STARS IN GALAXIES SE IAU SYMPOSIA LA English DT Proceedings Paper CT 143RD SYMP OF THE INTERNATIONAL ASTRONOMICAL UNION ON WOLF-RAYET STARS AND INTERRELATIONS WITH OTHER MASSIVE STARS IN GALAXIES CY JUN 18-22, 1990 CL SANUR, INDONESIA SP INT ASTRON UNION, REPUBLIC INDONESIA, DEPT EDUC & CULTURE, DIRECTORATE GEN HIGHER EDUC ID HE-II SPECTRA; WC STARS; ELECTRON-SCATTERING; IUE OBSERVATIONS; MASSIVE STARS; HOT STARS; WN STARS; HD-50896; ABUNDANCES; EVOLUTION RP HILLIER, DJ (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA DORDRECHT BN 0-7923-1086-1 J9 IAU SYMP PY 1991 VL 143 BP 59 EP 73 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BV33N UT WOS:A1991BV33N00006 ER PT J AU RAMSEY, MG NETZER, FP CLARK, CW MATTHEW, JAD AF RAMSEY, MG NETZER, FP CLARK, CW MATTHEW, JAD TI ENVIRONMENTALLY CONTROLLED COLLAPSE OF THE 4-F ORBITAL IN CS SO ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER LA English DT Article ID ELECTRON-ENERGY-LOSS; SELECTION-RULES; SPECTROSCOPY; BA; PHOTOABSORPTION; DEPENDENCE; SPECTRA; METALS; 4D; XE AB Electron-energy loss spectroscopy has been used to investigate excitations near the N45 edges of Cs metal and Cs oxide at primary electron energies E(p) between 200 and 2000 eV. The fine structures in the spectra show pronounced differences between the metal and the oxide. At E(p) = 2000 eV the 4d9 4 f "collapsed" multiplets and 4d --> 6p like transitions appear with greater intensity in the oxide, and a strong optically allowed component at 93 eV loss energy, which we attribute to a "4d9 4f1 P1(0)" exciton, is also seen much more clearly. At lower E(p) the non-dipole oscillator strength in the metal is spread over a wider energy range than in the oxide. With the aid of atomic structure calculations these results are interpreted in terms of differential partial collapse of the 4f orbital in the metal and the oxide, due to a combination of reduced screening and ionic potential cage effects. C1 NATL INST STAND & TECHNOL, DIV RADIAT PHYS, GAITHERSBURG, MD 20899 USA. UNIV YORK, DEPT PHYS, YORK YO1 5DD, N YORKSHIRE, ENGLAND. RP RAMSEY, MG (reprint author), UNIV INNSBRUCK, INST PHYS CHEM, INNRAIN 52A, A-6020 INNSBRUCK, AUSTRIA. RI Clark, Charles/A-8594-2009 OI Clark, Charles/0000-0001-8724-9885 NR 27 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0722-3277 J9 Z PHYS B CON MAT JI Z. Phys. B-Condens. Mat. PY 1991 VL 85 IS 2 BP 255 EP 258 DI 10.1007/BF01313227 PG 4 WC Physics, Condensed Matter SC Physics GA GN113 UT WOS:A1991GN11300013 ER PT J AU FLENSBERG, K GIRVIN, SM JONSON, M PENN, DR STILES, MD AF FLENSBERG, K GIRVIN, SM JONSON, M PENN, DR STILES, MD TI COULOMB BLOCKADE IN SINGLE TUNNEL-JUNCTIONS - QUANTUM-MECHANICAL EFFECTS OF THE ELECTROMAGNETIC ENVIRONMENT SO ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER LA English DT Article ID FLUCTUATIONS; OSCILLATIONS; DISSIPATION; ELECTRONS; DYNAMICS; SYSTEM AB We discuss the interaction of a tunneling electron with its equilibrium electromagnetic environment. The environment of an isolated tunnel junction is modeled by a set of harmonic oscillators that are suddenly displaced when an electron tunnels across the junction. We treat these displaced oscillators quantum mechanically, predicting behavior that is very different than that predicted by a semiclassical treatment. In particular, the shape of the zero-bias anomaly caused by the Coulomb blockade (a single-electron charging effect), is found to be strongly dependent on the impedance, Z(omega), of the leads connected to the junction. Comparison with three recent experiments demonstrates that the quantum mechanical treatment of this model correctly describes the essential physics in these systems. C1 UNIV TENNESSEE, DEPT PHYS, KNOXVILLE, TN 37996 USA. OAK RIDGE NATL LAB, DIV SOLID STATE, OAK RIDGE, TN 37831 USA. NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47401 USA. CHALMERS UNIV TECHNOL, INST THEORET PHYS, S-41296 GOTHENBURG, SWEDEN. RP FLENSBERG, K (reprint author), NORDITA, BLEGDAMSVEJ 17, DK-2100 COPENHAGEN, DENMARK. RI Jonson, Mats/D-6545-2011; Stiles, Mark/K-2426-2012; Flensberg, Karsten/N-4718-2014 OI Stiles, Mark/0000-0001-8238-4156; Flensberg, Karsten/0000-0002-8311-0103 NR 47 TC 13 Z9 13 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0722-3277 J9 Z PHYS B CON MAT JI Z. Phys. B-Condens. Mat. PY 1991 VL 85 IS 3 BP 395 EP 403 DI 10.1007/BF01307636 PG 9 WC Physics, Condensed Matter SC Physics GA GV450 UT WOS:A1991GV45000012 ER PT J AU SCHOHL, S KLAR, D KRAFT, T MEIJER, HAJ RUF, MW SCHMITZ, U SMITH, SJ HOTOP, H AF SCHOHL, S KLAR, D KRAFT, T MEIJER, HAJ RUF, MW SCHMITZ, U SMITH, SJ HOTOP, H TI ABSOLUTE DETECTION OF METASTABLE RARE-GAS ATOMS BY A CW LASER PHOTOIONIZATION METHOD SO ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS LA English DT Article ID SECONDARY-ELECTRON EJECTION; DEEXCITATION RATE CONSTANTS; THERMAL-ENERGY COLLISIONS; METAL-SURFACES; CROSS-SECTIONS; PENNING IONIZATION; PHOTO-IONIZATION; RESONANCE IONIZATION; ABSORPTION-SPECTRUM; IMPACT IONIZATION AB A novel, accurate method for the absolute detection of metastable rare gas atoms is described and demonstrated. It involves a direct in situ determination of the electron emission coefficient gamma for impact of the respective metastable atom on a conducting surface. gamma is reliably obtained by a cw two-photon ionization - depletion technique: the reduction DELTA-I(S) in electron current from the detector surface due to efficient photoionization removal of the metastable flux is compared with the photoelectron current DELTA-I(P) (gamma = DELTA-I(S)/DELTA-I(P). The principle of the method, possible realization schemes for the different metastable rare gas atoms and the apparatus are described in detail. The method has been applied so far to metastable Ne* (3s 3P2), Ar* (4s 3P2), and Kr* (5s 3P2) atoms, and corresponding results for gamma, obtained with five different chemically clean, polycrystalline surface materials and at two surface temperatures (300 K, 360 K) are reported. Whereas for Ne*, the value of gamma (almost-equal-to 0.35) showed only a rather weak dependence on the surface material and temperature (as also found for a mixed He* (2(3)S,2(1)S) beam), strong variations in gamma, especially at 300 K, were detected for Ar* and Kr* (values between 0.25 and 0.003). Some applications of the described method, especially with regard to the determination of absolute reaction cross sections involving metastable rare gas atoms, are discussed. C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80302. RP SCHOHL, S (reprint author), UNIV KAISERSLAUTERN,FACHBEREICH PHYS,W-6750 KAISERSLAUTERN,GERMANY. RI Meijer, Harro/A-5787-2012 NR 93 TC 37 Z9 37 U1 2 U2 7 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0178-7683 J9 Z PHYS D ATOM MOL CL JI Z. Phys. D-Atoms Mol. Clusters PY 1991 VL 21 IS 1 BP 25 EP 39 PG 15 WC Physics, Atomic, Molecular & Chemical SC Physics GA GA172 UT WOS:A1991GA17200006 ER PT J AU WIESE, WL FUHR, JR MARTIN, WC MUSGROVE, A SUGAR, J AF WIESE, WL FUHR, JR MARTIN, WC MUSGROVE, A SUGAR, J TI SPECTROSCOPIC DATA TABLES FOR HIGHLY IONIZED ATOMS SO ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS LA English DT Article; Proceedings Paper CT 5TH INTERNATIONAL CONF ON THE ATOMIC PHYSICS OF HIGHLY CHARGED IONS CY SEP 10-14, 1990 CL JUSTUS LIEBIG UNIV, GIESSEN, GERMANY HO JUSTUS LIEBIG UNIV ID ENERGY-LEVELS; SPECTRAL DATA; GROTRIAN DIAGRAMS; MOLYBDENUM; IONS AB Two data centers at the National Institute of Standards and Technology (NIST) are engaged in the critical compilation of atomic spectroscopic data including those for highly ionized atoms -- the Atomic Energy Levels Data Center and the Data Center on Atomic Transition Probabilities. Several major compilations have been recently completed, centered on the iron-group elements. RP WIESE, WL (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 30 TC 0 Z9 0 U1 1 U2 2 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0178-7683 J9 Z PHYS D ATOM MOL CL JI Z. Phys. D-Atoms Mol. Clusters PY 1991 VL 21 SU S BP S147 EP S148 PG 2 WC Physics, Atomic, Molecular & Chemical SC Physics GA GK215 UT WOS:A1991GK21500028 ER PT J AU MUNROE, TA NIZINSKI, MS AF MUNROE, TA NIZINSKI, MS TI SYMPHURUS-MELASMATOTHECA AND S UNDECIMPLERUS (CYNOGLOSSIDAE, PLEURONECTIFORMES), 2 NEW EASTERN PACIFIC TONGUEFISHES WITH ELEVEN CAUDAL-FIN RAYS SO COPEIA LA English DT Article AB Two new species of eastern Pacific tonguefishes with an unusual count of 11 caudal-fin rays are described. Symphurus melasmatotheca (southern Gulf of California to northern Peru) is characterized by having 11 caudal-fin rays, a well-developed pupillary operculum, 90-98 dorsal-fin rays, 74-80 anal-fin rays, 49-52 total vertebrae, four hypurals, a 1-5-3 (less frequently, 1-4-3) pattern of interdigitation of dorsal pterygiophores and neural spines, and 82-98 longitudinal scale rows. Symphurus melasmatotheca also has a unique pigmentation pattern that consists of a black peritoneum, crossbanding on the body and posterior part of the head, a distinctively black isthmus, light speckling on the inner lining of the ocular-side opercle, and an unpigmented inner lining of the opercle on the blind side of the body. Symphurus undecimplerus (Gulf of Tehuantepec to northern Peru) is distinguished from its congeners by a combination of 11 caudal-fin rays, a well-developed pupillary operculum, a 1-5-3 (less frequently 1-4-4 or 1-5-4) pattern of interdigitation of dorsal pterygiophores and neural spines, 97-105 dorsal-fin rays, 80-87 anal-fin rays, 52-56 total vertebrae, 95-112 longitudinal scale rows, an unpigmented or infrequently lightly spotted peritoneum, crossbanding on the body and posterior part of the head, a dark (but usually not black) isthmus, and absence of pigment on the inner linings of the opercles on both sides of the body. Differences in geographic and bathymetric distributions between species are also noted. RP MUNROE, TA (reprint author), NATL MUSEUM NAT HIST,NATL MARINE FISHERIES SERV SYST LAB,WASHINGTON,DC 20560, USA. NR 12 TC 6 Z9 6 U1 0 U2 0 PU AMER SOC ICHTHYOLOGISTS HERPETOLOGISTS BUSINESS OFFICE PI CARBONDALE PA SOUTHERN ILLINOIS UNIV, DEPT ZOOLOGY, CARBONDALE, IL 62901-6501 SN 0045-8511 J9 COPEIA JI Copeia PD DEC 31 PY 1990 IS 4 BP 985 EP 996 PG 12 WC Zoology SC Zoology GA ET225 UT WOS:A1990ET22500005 ER PT J AU NATANSON, LJ CAILLIET, GM AF NATANSON, LJ CAILLIET, GM TI VERTEBRAL GROWTH ZONE DEPOSITION IN PACIFIC ANGEL SHARKS SO COPEIA LA English DT Article ID SANDBAR SHARK; AGE; TETRACYCLINE; REPRODUCTION AB Vertebrae and body size measurements were taken from 334 Pacific angel sharks collected from commercial gill netters off Santa Barbara, California, from Sept. 1979-Nov. 1983. Radiographs of vertebral centra from 247 specimens were studied to delineate calcified bands for age determination. The vertebrae of the smallest newborn sharks (260 mm TL) had 6 or 7 bands while those of the largest (1140 mm TL) had 42 bands. Bands were not deposited annually but were related to somatic growth. This hypothesis is supported by the number of bands in embryos and newborn Pacific angel sharks, growth of girth, and vertebral centrum dimensions, laboratory grow-out studies of tetracycline-injected sharks, and evidence from six tetracycline-injected tag returns. C1 MOSS LANDING MARINE LABS, MOSS LANDING, CA 95039 USA. RP NATANSON, LJ (reprint author), NOAA, NATL MARINE FISHERIES SERV, NE FISHERIES CTR, NARRAGANSETT LAB, S FERRY RD, NARRAGANSETT, RI 02882 USA. NR 28 TC 64 Z9 65 U1 0 U2 5 PU AMER SOC ICHTHYOLOGISTS & HERPETOLOGISTS PI MIAMI PA MAUREEN DONNELLY, SECRETARY FLORIDA INT UNIV BIOLOGICAL SCIENCES, 11200 SW 8TH STREET, MIAMI, FL 33199 USA SN 0045-8511 EI 1938-5110 J9 COPEIA JI Copeia PD DEC 31 PY 1990 IS 4 BP 1133 EP 1145 DI 10.2307/1446499 PG 13 WC Zoology SC Zoology GA ET225 UT WOS:A1990ET22500023 ER PT J AU RICHTER, M WOICIK, JC NOGAMI, J PIANETTA, P MIYANO, KE BASKI, AA KENDELEWICZ, T BOULDIN, CE SPICER, WE QUATE, CF LINDAU, I AF RICHTER, M WOICIK, JC NOGAMI, J PIANETTA, P MIYANO, KE BASKI, AA KENDELEWICZ, T BOULDIN, CE SPICER, WE QUATE, CF LINDAU, I TI SURFACE EXTENDED-X-RAY-ABSORPTION FINE-STRUCTURE AND SCANNING TUNNELING MICROSCOPY OF SI(001)2X1-SB SO PHYSICAL REVIEW LETTERS LA English DT Article ID PHOTOEMISSION; SI(100); SB AB Surface extended-x-ray-absorption fine structure (SEXAFS) has been combined with scanning tunneling microscopy (STM) to determine both the local and long-range bonding properties of the Si(001)2 x 1-Sb interface. Sb L3 edge SEXAFS shows that Sb dimers occupy a modified bridge site on the Si(001) surface with a Sb-Sb near-neighbor distance of 2.88 +/- 0.03 angstrom. Each Sb atom of the dimer is bonded to two Si atoms with a Sb-Si bond length of 2.63 +/- 0.04 angstrom. STM resolves the dimer structure and provides the long-range periodicity of the surface. Low-energy-electron diffraction of vicinal Si(001) shows that the Sb dimer chains run perpendicular to the original Si dimer chains. C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. EDWARD L GINZTON LAB,STANFORD,CA 94305. STANFORD UNIV,STANFORD ELECTR LABS,STANFORD,CA 94305. RP RICHTER, M (reprint author), STANFORD SYNCHROTRON RADIAT LAB,STANFORD,CA 94309, USA. NR 14 TC 138 Z9 139 U1 1 U2 4 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD DEC 31 PY 1990 VL 65 IS 27 BP 3417 EP 3420 DI 10.1103/PhysRevLett.65.3417 PG 4 WC Physics, Multidisciplinary SC Physics GA EQ338 UT WOS:A1990EQ33800015 ER PT J AU SENEKOWITSCH, J ONEIL, SV WERNER, HJ KNOWLES, PJ AF SENEKOWITSCH, J ONEIL, SV WERNER, HJ KNOWLES, PJ TI LOW-LYING ELECTRONIC STATES OF PH2+ SO CHEMICAL PHYSICS LETTERS LA English DT Article ID RADIATIVE TRANSITION-PROBABILITIES; DICATIONS AB All ten electronic states correlating with the four lowest asymptotes of the doubly charged PH2+ ion have been calculated by the complete active space self-consistent field (CASSCF) and multireference configuration interaction (MR-CI) techniques. In addition to the previously known X 1-SIGMA+ ground state, two more meta-stable states, A 1-PI and a 1-PI have been found. We find all other states in this energy region to be repulsive. C1 UNIV BIELEFELD, FACHBEREICH CHEM, W-4800 BIELEFELD, GERMANY. UNIV SUSSEX, SCH CHEM & MOLEC SCI, BRIGHTON BN1 9QJ, E SUSSEX, ENGLAND. RP UNIV COLORADO, NATL INST STAND & TECHNOL, JOINT INST LAB ASTROPHYS, BOULDER, CO 80309 USA. RI Knowles, Peter/G-2985-2010; Werner, Hans-Joachim/G-9509-2011 OI Knowles, Peter/0000-0003-4657-6331; Werner, Hans-Joachim/0000-0002-0435-539X NR 22 TC 3 Z9 3 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 EI 1873-4448 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD DEC 28 PY 1990 VL 175 IS 6 BP 548 EP 554 DI 10.1016/0009-2614(90)85579-2 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EU562 UT WOS:A1990EU56200002 ER PT J AU MCEACHRAN, RP STAUFFER, AD AF MCEACHRAN, RP STAUFFER, AD TI DYNAMIC DISTORTION EFFECTS IN ELECTRON ATOM SCATTERING SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID FROZEN-CORE APPROXIMATION; TRANSFER CROSS-SECTION; POSITRON SCATTERING; ELASTIC-SCATTERING; HELIUM; ARGON; NEON; POLARIZATION; KRYPTON; XENON AB We have formulated a polarized-orbital treatment of electron-atom scattering which includes dynamic distortion effects. Detailed formulae are given in terms of our previous formulation of the polarized-orbital method. Results for electron-helium scattering are presented and compared with various experimental measurements as well as with the very accurate theoretical calculation of Nesbet. Definite improvements are noted over our previous polarized-orbital calculations. We have also tested the reliability of our procedure for incorporating dynamic distortion effects by performing an atomic structure calculation of the ionization energies of several low-lying valence states of lithium. C1 UNIV COLORADO, NATL INST STAND & TECHNOL, JOINT INST LAB ASTROPHYS, BOULDER, CO 80309 USA. RP YORK UNIV, DEPT PHYS, N YORK M3J 1P3, ONTARIO, CANADA. NR 24 TC 30 Z9 30 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 EI 1361-6455 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD DEC 28 PY 1990 VL 23 IS 24 BP 4605 EP 4614 DI 10.1088/0953-4075/23/24/015 PG 10 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA ER380 UT WOS:A1990ER38000015 ER PT J AU BUCKMAN, SJ BRUNGER, MJ NEWMAN, DS SNITCHLER, G ALSTON, S NORCROSS, DW MORRISON, MA SAHA, BC DANBY, G TRAIL, WK AF BUCKMAN, SJ BRUNGER, MJ NEWMAN, DS SNITCHLER, G ALSTON, S NORCROSS, DW MORRISON, MA SAHA, BC DANBY, G TRAIL, WK TI NEAR-THRESHOLD VIBRATIONAL-EXCITATION OF H-2 BY ELECTRON-IMPACT - RESOLUTION OF DISCREPANCIES BETWEEN EXPERIMENT AND THEORY SO PHYSICAL REVIEW LETTERS LA English DT Article ID TRANSFER CROSS-SECTION; ROTATIONAL-EXCITATION; SCATTERING; HELIUM; APPROXIMATIONS; COLLISIONS; MOLECULES; HYDROGEN AB New measurements and calculations of near-threshold (0.5-5.0 eV) e-H-2 vibrational-excitation cross sections challenge previous determinations based on transport analysis. Elastic and v(o) = 0 --> v = 1 cross sections measured in a crossed electron-molecular-beam apparatus agree well with values calculated using a vibrational close-coupling theory with a separable representation of exchange, particularly at energies below 2.0 eV, but are incompatible with cross sections derived via analysis of electron-swarm transport data. C1 UNIV COLORADO,NBS,JOINT INST LAB ASTROPHYS,BOULDER,CO 80302. UNIV OKLAHOMA,DEPT PHYS & ASTRON,NORMAN,OK 73019. RP BUCKMAN, SJ (reprint author), AUSTRALIAN NATL UNIV,RES SCH PHYS SCI,ELEKTR PHYS GRP,CANBERRA,ACT 2600,AUSTRALIA. RI Buckman, Stephen/B-4750-2009 NR 25 TC 53 Z9 53 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD DEC 24 PY 1990 VL 65 IS 26 BP 3253 EP 3256 DI 10.1103/PhysRevLett.65.3253 PG 4 WC Physics, Multidisciplinary SC Physics GA EP045 UT WOS:A1990EP04500012 ER PT J AU TU, YG GOYAL, IC GALLAWA, RL AF TU, YG GOYAL, IC GALLAWA, RL TI ANALYZING INTEGRATED OPTICAL WAVE-GUIDES - A COMPARISON OF 2 NEW METHODS SO APPLIED OPTICS LA English DT Note DE NUMERICAL METHODS; INTEGRATED OPTICS; OPTICAL WAVE-GUIDES; WKB; WAVE-GUIDE ANALYSIS ID WAVE-GUIDES; MODES AB We present a comparison of two recently developed methods of analyzing optical waveguides. One of them is numerical, and the other is an approximate analytical method. RP TU, YG (reprint author), US NATL INST STAND & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303, USA. NR 7 TC 7 Z9 7 U1 1 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 20 PY 1990 VL 29 IS 36 BP 5313 EP 5315 PG 3 WC Optics SC Optics GA EQ685 UT WOS:A1990EQ68500003 PM 20577553 ER PT J AU CHU, YH MACLOW, MM AF CHU, YH MACLOW, MM TI X-RAYS FROM SUPERBUBBLES IN THE LARGE MAGELLANIC CLOUD SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,AMES RES CTR,THEORET STUDIES BRANCH,MOFFETT FIELD,CA 94035. UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO. RP CHU, YH (reprint author), UNIV ILLINOIS,DEPT ASTRON,1002 W GREEN ST,URBANA,IL 61801, USA. OI Mac Low, Mordecai-Mark/0000-0003-0064-4060 NR 60 TC 176 Z9 176 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 20 PY 1990 VL 365 IS 2 BP 510 EP & DI 10.1086/169505 PN 1 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300010 ER PT J AU BOHANNAN, B VOELS, SA HUMMER, DG ABBOTT, DC AF BOHANNAN, B VOELS, SA HUMMER, DG ABBOTT, DC TI PHOTOSPHERES OF HOT STARS .4. SPECTRAL TYPE-O4 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 INST ASTRON & ASTROPHYS,W-8000 MUNICH,GERMANY. UNIV COLORADO,DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI,BOULDER,CO 80309. NATL INST STAND & TECHNOL,DIV QUANTUM PHYS,BOULDER,CO. RP BOHANNAN, B (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,CAMPUS BOX 440,BOULDER,CO 80309, USA. NR 26 TC 29 Z9 29 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 20 PY 1990 VL 365 IS 2 BP 729 EP 737 DI 10.1086/169526 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300031 ER PT J AU NAGAMOTO, C PARUNGO, F KOPCEWICZ, B ZHOU, MY AF NAGAMOTO, C PARUNGO, F KOPCEWICZ, B ZHOU, MY TI CHEMICAL-ANALYSIS OF RAIN SAMPLES COLLECTED OVER THE PACIFIC-OCEAN SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID DIMETHYL SULFIDE; MARINE AEROSOLS; REMOTE AREAS; SEA-SALT; EL-NINO; PRECIPITATION; ATMOSPHERE; ACIDITY; SULFUR; WORLD AB During seven research cruises in the Pacific Ocean from 1984 to 1989 we collected rain samples for chemical analyses. The geographical and temporal variations of rain chemistry were studied in relation to natural and anthropogenic sources and transport of the constituents. The pH values of rain samples ranged from 3.9 to 7.2, with a mean of 5.6 (n = 104, sigma = 0.5). The most acidic rain was found near the big ports, where SO4= and NO3- concentrations in rain were also the highest. The data indicated that wet deposition transports anthropogenic pollution from continents to oceans. Enrichments of Ca++ and K+, which are compared to Na+ in seawater, were observed in all rain samples throughout the ocean. However, their enrichment factors (EF) decrease with distance from land, signifying the extent of transport of crustal elements through cloud process and wet deposition. The EFs of Mg++ were close to unity, indicating its common origin with Na+. The EFs of Cl- in most rain samples were less than 1, indicating loss of CL- in aerosols, cloud droplets, or rain drops. High EFs of SO4= were also observed at the equatorial regions, where biogenic production of dimethyl sulfide is well known. During the 1987 El Nino anomaly the sulfate aerosol distribution and rainfall patterns altered with air trajectories. The effects of sulfate aerosol on cloud condensation and rainfall amount in various regions during normal years and the El Nino anomaly are discussed. C1 POLISH ACAD SCI, INST GEOPHYS, WARSAW 42, POLAND. NATL RES CTR MARINE ENVIRONM FORECASTS, BEIJING, PEOPLES R CHINA. RP NAGAMOTO, C (reprint author), NOAA, ENVIRONM RES LAB, AIR RESOURCES LAB, BOULDER, CO 80303 USA. NR 26 TC 10 Z9 11 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD DEC 20 PY 1990 VL 95 IS D13 BP 22343 EP 22354 DI 10.1029/JD095iD13p22343 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ840 UT WOS:A1990EQ84000002 ER PT J AU LI, SM WINCHESTER, JW KAHL, JD OLTMANS, SJ SCHNELL, RC SHERIDAN, PJ AF LI, SM WINCHESTER, JW KAHL, JD OLTMANS, SJ SCHNELL, RC SHERIDAN, PJ TI ARCTIC BOUNDARY-LAYER OZONE VARIATIONS ASSOCIATED WITH NITRATE, BROMINE, AND METEOROLOGY - A CASE-STUDY SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID SURFACE; DISTRIBUTIONS; ATMOSPHERE; BROMOFORM; CHLORINE; IODINE; HAZE; NO2 AB Gas and aerosol measurements at Barrow, Alaska during the spring of 1986 confirm the inverse relationship between particulate excess bromine (xBr) and O3. In addition to this inverse xBr-O3 relationship, several other factors were found to be important in understanding the springtime variability of O3 at Barrow. They are (1) O3 concentration variability associated with NOx chemistry at high pollutant levels or transport of primary pollutant O3 from lower latitudes, (2) displacement of air masses of high O3 content with air masses low in O3 but high in sea salt, suggesting potential roles of sea salt in O3 fluctuations, and (3) when pollutant levels were low, advection of air than can cause gradual change in O3 with more rapid inversely related fluctuations of O3 and xBr superimposed. Under the conditions of factor 3 the trend and anticorrelation each accounted for about one quarter of the variance in O3, suggesting a role for other compounds or low level reactive nitrogen species and gas-particle interaction in the photolytic O3 destruction process. C1 NOAA, GEOPHYS MONITORING CLIMATE CHANGE, BOULDER, CO 80303 USA. FLORIDA STATE UNIV, DEPT OCEANOG, TALLAHASSEE, FL 32306 USA. NATL CTR ATMOSPHER RES, BOULDER, CO 80307 USA. UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. NR 28 TC 12 Z9 13 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD DEC 20 PY 1990 VL 95 IS D13 BP 22433 EP 22440 DI 10.1029/JD095iD13p22433 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ840 UT WOS:A1990EQ84000009 ER PT J AU JACH, T AF JACH, T TI THE INSTRUMENTATION OF X-RAY-BEAM LINES WITH PIN DIODE DETECTORS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN AB Much of the X-ray work on synchrotron-radiation beam lines is still done using ion chambers as detectors. Silicon PIN photodiodes offer considerable advantages over ion chambers for many applications. In addition to greater efficiency over a wide energy range (1-20 keV), they posses a flat configuration, large areas, an absence of bias requirements, high dynamic range, and compatability with ultrahigh vacuum. We have characterized the properties of several commercial PIN photodiodes at X-ray energies, have had diodes commercially produced which were specialized for use in synchrotron beam lines, and have produced new photodiode devices for synchrotron-radiation applications. We review the performance of these devices over extended periods of time in beam-line control and as detectors in experiments. RP JACH, T (reprint author), NIST,DIV SURFACE SCI,GAITHERSBURG,MD 20899, USA. NR 14 TC 5 Z9 5 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD DEC 20 PY 1990 VL 299 IS 1-3 BP 76 EP 79 DI 10.1016/0168-9002(90)90750-Z PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800015 ER PT J AU MILDNER, DFR AF MILDNER, DFR TI THE NEUTRON MICROGUIDE AS A PROBE FOR MATERIALS ANALYSIS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN AB A system composed of curved totally reflecting nickel mirrors is described for the focusing of neutrons by the superposition of intensities transmitted through many thin-layer films, each of which points individually to the focus. This is achieved by stacking many curved mirrors on top of each other with their ends slightly overlapping, so that the projections of each microguide meet at the focal point. The maximum current density is obtained with a large number of microguide sheets of minimum thickness, a large radius of curvature, and a short focal length, though the thickness of the microguides may be dictated by more practical considerations. The length of the system should be as short as possible (approximately few cm) to reduce both reflection and scattering losses, consistent with the length of direct view. The major loss in transmission is caused by misalignment of the layers which will diffuse the focus from its theoretical maximum. RP MILDNER, DFR (reprint author), NIST,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 18 TC 14 Z9 14 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD DEC 20 PY 1990 VL 299 IS 1-3 BP 416 EP 419 DI 10.1016/0168-9002(90)90816-O PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800081 ER PT J AU LINDSTROM, RM LINDSTROM, DJ SLABACK, LA LANGLAND, JK AF LINDSTROM, RM LINDSTROM, DJ SLABACK, LA LANGLAND, JK TI A LOW-BACKGROUND GAMMA-RAY ASSAY LABORATORY FOR ACTIVATION-ANALYSIS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN ID SPECTROMETERS AB The sources of background in a gamma-ray detector were experimentally determined in underground and surface counting rooms, and an optimized shield was constructed at NIST. The optimum thickness of lead was 10-15 cm, with a greater thickness giving an increased background due to the buildup of tertiary cosmic-ray particles. Neither cadmium, tin, copper nor plastic (hydrocarbon or fluorocarbon) was desirable as a shield liner, since all these increased the background continuum or introduced characteristic peaks into the background spectrum. Two broad peaks in the background result from inelastic scattering of cosmic-ray neutrons (0.02 cm-2 s-1) in germanium. These neutrons also excite the lower nuclear levels of lead and structural iron to produce additional gamma-ray peaks in the spectrum. The influence of the 20 MW NIST reactor, located 60 m from the detector, was undetectable. Comparisons among detectors and locations clearly separate cosmic from environmental components of the background. C1 NIST,DIV OCCUPAT HLTH & SAFETY,GAITHERSBURG,MD 20899. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP LINDSTROM, RM (reprint author), NIST,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 20 TC 46 Z9 46 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD DEC 20 PY 1990 VL 299 IS 1-3 BP 425 EP 429 DI 10.1016/0168-9002(90)90818-Q PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800083 ER PT J AU YIN, LI SELTZER, SM AF YIN, LI SELTZER, SM TI PATTERN-RECOGNITION ANALYSIS OF LOW-RESOLUTION X-RAY-FLUORESCENCE SPECTRA SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN AB Using a high-resolution Si(Li) spectrometer to perform X-ray fluorescence (XRF) analysis of various geological, alloy, and paint samples, we have demonstrated that in situations where quantitative information is not the primary concern, a pattern-recognition approach may be used to obtain qualitative results very quickly and efficiently. Specifically, the pattern-recognition technique uses a single parameter, the normalized correlation coefficient, to identify and select samples with similar chemical compositions from their raw XRF spectra. The algorithm can be easily implemented on a personal computer; typically it takes only a few seconds to perform the pairwise comparison of 9 or 10 spectra. We report here the results of our attempt to extend the pattern-recognition technique to the analysis of low-resolution XRF spectra from a proportional counter where the spectral information is considerably poorer than that of the Si(Li) detector. Analyzing the XRF spectra obtained from a set of geological samples both in air and in vacuum we find that even with a proportional counter the pattern-recognition technique can nevertheless satisfactorily identify samples with similar chemical compositions. C1 NIST,CTR RADIAT RES,GAITHERSBURG,MD 20899. RP YIN, LI (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 682,GREENBELT,MD 20771, USA. NR 4 TC 1 Z9 1 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD DEC 20 PY 1990 VL 299 IS 1-3 BP 571 EP 577 DI 10.1016/0168-9002(90)90846-X PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800111 ER PT J AU HUBBELL, JH AF HUBBELL, JH TI X-RAY CROSS-SECTIONS AND CROSSROADS - A CITATION-CLASSIC COMMENTARY ON PHOTON MASS ATTENUATION AND ENERGY-ABSORPTION COEFFICIENTS FROM 1 KEV TO 20 MEV, BY HUBBELL,J.H. SO CURRENT CONTENTS/ENGINEERING TECHNOLOGY & APPLIED SCIENCES LA English DT Article RP HUBBELL, JH (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 11 TC 1 Z9 2 U1 2 U2 3 PU INST SCI INFORM INC PI PHILADELPHIA PA 3501 MARKET ST, PHILADELPHIA, PA 19104 SN 0011-3395 J9 CC/ENG TECH APPL SCI PD DEC 17 PY 1990 IS 51 BP 22 EP 22 PG 1 WC Multidisciplinary Sciences; Social Sciences, Interdisciplinary SC Science & Technology - Other Topics; Social Sciences - Other Topics GA EL750 UT WOS:A1990EL75000001 ER PT J AU HUBBELL, JH AF HUBBELL, JH TI X-RAY CROSS-SECTIONS AND CROSSROADS - A CITATION-CLASSIC COMMENTARY ON PHOTON MASS ATTENUATION AND ENERGY-ABSORPTION COEFFICIENTS FROM 1 KEV TO 20 MEV, BY HUBBELL,J.H. SO CURRENT CONTENTS/PHYSICAL CHEMICAL & EARTH SCIENCES LA English DT Article RP HUBBELL, JH (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 11 TC 1 Z9 2 U1 2 U2 3 PU INST SCI INFORM INC PI PHILADELPHIA PA 3501 MARKET ST, PHILADELPHIA, PA 19104 SN 0163-2574 J9 CC/PHYS CHEM EARTH PD DEC 17 PY 1990 IS 51 BP 22 EP 22 PG 1 WC Multidisciplinary Sciences; Social Sciences, Interdisciplinary SC Science & Technology - Other Topics; Social Sciences - Other Topics GA EL752 UT WOS:A1990EL75200001 ER PT J AU WINTERS, MP HALL, JL TOSCHEK, PE AF WINTERS, MP HALL, JL TOSCHEK, PE TI CORRELATED SPONTANEOUS EMISSION IN A ZEEMAN LASER SO PHYSICAL REVIEW LETTERS LA English DT Article C1 UNIV HAMBURG,INST EXPTL PHYS 1,W-2000 HAMBURG 36,GERMANY. RP WINTERS, MP (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 12 TC 78 Z9 80 U1 0 U2 4 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD DEC 17 PY 1990 VL 65 IS 25 BP 3116 EP 3119 DI 10.1103/PhysRevLett.65.3116 PG 4 WC Physics, Multidisciplinary SC Physics GA EM761 UT WOS:A1990EM76100014 ER PT J AU BENNETT, WR SCHWARZACHER, W EGELHOFF, WF AF BENNETT, WR SCHWARZACHER, W EGELHOFF, WF TI CONCURRENT ENHANCEMENT OF KERR ROTATION AND ANTIFERROMAGNETIC COUPLING IN EPITAXIAL FE/CU/FE STRUCTURES SO PHYSICAL REVIEW LETTERS LA English DT Article RP BENNETT, WR (reprint author), NATL INST STAND & TECHNOL,DIV SURFACE SCI,GAITHERSBURG,MD 20899, USA. NR 32 TC 194 Z9 195 U1 1 U2 8 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD DEC 17 PY 1990 VL 65 IS 25 BP 3169 EP 3172 DI 10.1103/PhysRevLett.65.3169 PG 4 WC Physics, Multidisciplinary SC Physics GA EM761 UT WOS:A1990EM76100028 ER PT J AU NEWBURY, DE FIORI, CE MARINENKO, RB MYKLEBUST, RL SWYT, CR BRIGHT, DS AF NEWBURY, DE FIORI, CE MARINENKO, RB MYKLEBUST, RL SWYT, CR BRIGHT, DS TI COMPOSITIONAL MAPPING WITH THE ELECTRON-PROBE MICROANALYZER .2. SO ANALYTICAL CHEMISTRY LA English DT Article C1 NIH,BIOMED ENGN RES BRANCH,BIOL ENGN & INSTRUMENTAT PROGRAM,BETHESDA,MD 20892. RP NEWBURY, DE (reprint author), NIST,CTR ANALYT CHEM,MICROANAL RES GRP,GAITHERSBURG,MD 20899, USA. NR 23 TC 14 Z9 14 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD DEC 15 PY 1990 VL 62 IS 24 BP A1245 EP & PG 0 WC Chemistry, Analytical SC Chemistry GA EN073 UT WOS:A1990EN07300002 ER PT J AU INGHAM, KC BREW, SA ATHA, DH AF INGHAM, KC BREW, SA ATHA, DH TI INTERACTION OF HEPARIN WITH FIBRONECTIN AND ISOLATED FIBRONECTIN DOMAINS SO BIOCHEMICAL JOURNAL LA English DT Article ID HUMAN-PLASMA FIBRONECTIN; ENDOTHELIAL-CELL GROWTH; BINDING DOMAIN; PROTEOLYTIC FRAGMENTS; POTENT INHIBITORS; IONIC-STRENGTH; DNA-BINDING; ADHESION; STABILITY; GLYCOSAMINOGLYCANS AB Fluorescence polarization, gel exclusion chromatography and affinity chromatography were used to characterize the interaction of heparins of different size with human plasma fibronectin (Fn) and several of its isolated domains. The fluidphase kDa Hep-2 domains located near the C-terminal ends of the A and B chains respectively. The 30 kDa Hep-2A domain from the heavy chain was indistinguishable from the 40 kDa Hep-2B domain in this respect; the presence of an additional type III homology unit in the latter had no effect on the binding. Evidence was provided that each Hep-2 domain has two binding sites for heparin. The N-terminal Hep-1 domain reacted weakly in fluid phase even though it binds strongly to immobilized heparin. Fn and Hep-2 fragments were rather undiscriminating in their reaction with fluoresceinamine-labelled heparins of different sizes. However, oligosaccharides smaller than the tetradecasaccharide (14-mer) bound Fn with a 5-10-fold lower affinity. These results suggest that the Hep-2 domains of Fn are able to recognize a broad spectrum of oligosaccharides that presumably vary significantly with respect to the amount and spatial distribution of charge. C1 NATL INST STANDARDS & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899. RP INGHAM, KC (reprint author), AMER RED CROSS BIOMED RES & DEV,BIOCHEM LAB,ROCKVILLE,MD 20855, USA. FU NHLBI NIH HHS [HL21791] NR 41 TC 80 Z9 81 U1 0 U2 2 PU PORTLAND PRESS PI LONDON PA 59 PORTLAND PLACE, LONDON, ENGLAND W1N 3AJ SN 0264-6021 J9 BIOCHEM J JI Biochem. J. PD DEC 15 PY 1990 VL 272 IS 3 BP 605 EP 611 PG 7 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA EQ576 UT WOS:A1990EQ57600007 PM 2268289 ER PT J AU MILLER, TM LINEBERGER, WC AF MILLER, TM LINEBERGER, WC TI MASS-SPECTRA AND PHOTODETACHMENT OF SODIUM-FLUORIDE NEGATIVE-ION CLUSTERS SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article ID TEMPERATURE RELAXATION RATES; FLOWING AFTERGLOW PLASMAS; MICROWAVE-INDUCED PLASMAS; ALKALI-HALIDE MOLECULES; METAL-HALIDES; PHOTOELECTRON-SPECTROSCOPY; IODIDE CLUSTERS; EXCESS ELECTRON; GROUND-STATE; SPECTROMETRY AB A flowing afterglow discharge ion source with NaF vaporized into flow produces the expected stable anions F-(NaF)n, as well as the unsual species Na(NaF)n- and (NaF)n- (n less-than-or-equal-to 17). The dominance of (NaF)6- suggests that it has a particularly stable structure. A fixed-frequency laser has been used to photodetach electrons from mass-selected ion beams extracted from the flowing afterglow. Photoelectron energy spectra, vertical detachment energies and estimates of adiabatic electron affinities are reported for the (NaF)n- and Na(NaF)n- ions. The F(NaF)n- ions are found to be too stable for photodetachment at 488 nm. C1 UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. UNIV OKLAHOMA,DEPT PHYS & ASTRON,NORMAN,OK 73019. RP MILLER, TM (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 37 TC 15 Z9 15 U1 2 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectrom. Ion Process. PD DEC 15 PY 1990 VL 102 BP 239 EP 249 DI 10.1016/0168-1176(90)80063-9 PG 11 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA ET921 UT WOS:A1990ET92100016 ER PT J AU BLUE, JL SCHEINFEIN, MR AF BLUE, JL SCHEINFEIN, MR TI MICROMAGNETIC CALCULATIONS OF 180-DEGREES SURFACE DOMAIN-WALL MAGNETIZATION PROFILES WITH COMPARISON TO MEASUREMENTS SO JOURNAL OF APPLIED PHYSICS LA English DT Note ID FILMS AB We compare measurements of magnetization profiles across 180-degrees surface domain walls in a permalloy ferromagnet with calculations from micromagnetic models. The models were solved both by relaxation and by a time-evolution calculation. The measurements were made using scanning electron microscopy with polarization analysis. We obtain good agreement without postulating any surface anisotropy effect. This is the first successful comparison between experiment and a time-evolution calculation of domain walls. RP BLUE, JL (reprint author), NIST,GAITHERSBURG,MD 20899, USA. NR 22 TC 6 Z9 6 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD DEC 15 PY 1990 VL 68 IS 12 BP 6504 EP 6506 DI 10.1063/1.346850 PG 3 WC Physics, Applied SC Physics GA EP011 UT WOS:A1990EP01100081 ER PT J AU PARSON, R AF PARSON, R TI A SYMMETRY-BASED MODEL FOR SELECTIVE ROTATIONAL ENERGY-TRANSFER IN COLLISIONS OF SPHERICAL TOP MOLECULES SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID TRIPLY-DEGENERATE FUNDAMENTALS; TETRAHEDRAL XY4 MOLECULES; POLYATOMIC-MOLECULES; COUPLED STATES; VIBRATION; TRANSITIONS; SPECTRA; METHANE AB Recent state-resolved experiments have shown that rotational energy transfer in collisions of vibrationally excited spherical top molecules is remarkably selective with respect to the fine structure components of the rovibrational states. It is shown that this selectivity can be explained by means of symmetry arguments and the Harter-Patterson theory of spectral clustering. A new propensity rule, which extends the well-known symmetric top selection rule to perturbed spherical tops, is derived and shown to account well for the experimental results of Steinfeld and co-workers on 13CD4 and SiH4. C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. RP PARSON, R (reprint author), UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309, USA. NR 32 TC 20 Z9 20 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 15 PY 1990 VL 93 IS 12 BP 8731 EP 8738 DI 10.1063/1.459261 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000036 ER PT J AU DUBS, RL JULIENNE, PS MIES, FH AF DUBS, RL JULIENNE, PS MIES, FH TI INTERSYSTEM CROSSING IN COLLISIONS OF ALIGNED CA(4S5PP1)+HE - A HALF COLLISION ANALYSIS USING MULTICHANNEL QUANTUM DEFECT THEORY SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID DIATOMIC-MOLECULES; ANGULAR-MOMENTUM; ATOMIC-COLLISIONS; SCATTERING-THEORY; GENERAL-FORM; ALIGNMENT; SECTIONS; PREDISSOCIATION; STATES; POLARIZATION AB A half collision analysis of alignment effects on intersystem crossing in the collisions of Ca(4s5p1P) with He has been performed using generalized multichannel quantum defect theory (MCQDT). The theory provides a rigorous analytical representation of the numerically exact closed-coupled scattering wave functions. The half collision analysis results in a factorization of the full quantum collision problem into a number of simpler quantum mechanical problems which reflect different regions of development during the collision. A WKB-assisted, frame transformation approximation to the incoming half collision matrix is tested numerically and is found to be useful in projecting out information on the "locking radius" concept. RP DUBS, RL (reprint author), NATL INST STAND & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899, USA. RI Julienne, Paul/E-9378-2012 OI Julienne, Paul/0000-0002-5494-1442 NR 31 TC 24 Z9 24 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 15 PY 1990 VL 93 IS 12 BP 8784 EP 8792 DI 10.1063/1.459267 PG 9 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000043 ER PT J AU KRAUSS, M STEVENS, WJ AF KRAUSS, M STEVENS, WJ TI CS CLUSTER BINDING TO A GAAS SURFACE SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID SEMICONDUCTOR COMPOUNDS; EFFECTIVE POTENTIALS; METAL-CLUSTERS; 110 SURFACE; III-V; RECONSTRUCTION; ALKALI; GAAS(110); ENERGY; ATOMS AB A cluster model for the binding of Cs atoms on the (110) surface of GaAs is examined for polarization, charge transfer, and dispersion interactions. Binding energies for two or three atom clusters on GaAs are calculated to be less than 0.1 eV per Cs atom indicating only small binding contributions from charge transfer and polarization. Orbital and total charge density plots reveal an alkali valence charge weakly bonded between the alkali atoms and polarized toward the Ga atom. A London analysis of the dispersion energy between quasilinear Cs clusters and GaAs clusters finds it is large compared to the difference in stability between polyhedral clusters and the quasilinear clusters that are experimentally observed on the GaAs surface. The large dispersion energy is due to the large polarizabilities for quasilinear chains of Cs atoms whose longitudinal component increases approximately with the square of the chain length. RP NATL INST STAND & TECHNOL, DIV MOLEC PHYS, B268 PHYS BLDG, GAITHERSBURG, MD 20899 USA. NR 27 TC 12 Z9 12 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 15 PY 1990 VL 93 IS 12 BP 8915 EP 8924 DI 10.1063/1.459230 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000058 ER PT J AU JACKSON, CL MCKENNA, GB AF JACKSON, CL MCKENNA, GB TI THE MELTING BEHAVIOR OF ORGANIC MATERIALS CONFINED IN POROUS SOLIDS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID FREE-ENERGIES; LIQUID; SIZE; WATER; THERMOPOROMETRY; TEMPERATURE; POROSITY; DYNAMICS; CRYSTAL; GLASS AB The solid-liquid phase transition temperatures and heats of fusion DELTA-H(f) of nonpolar organic solids confined in the pores of controlled pore glasses were measured by differential scanning calorimetry. The pore diameters d were in the range of 40-730 angstrom and the organics studied were cis-decalin, trans-decalin, cyclohexane, benzene, chlorobenzene, naphthalene, and heptane. In accordance with previous reports on studies of primarily inorganic materials, the melting point of the pore solid T(d) decreased with decreasing pore diameter. In addition, a large reduction in the bulk enthalpy of fusion DELTA-H(f) of the pore solid was measured, which apparently has not been studied in detail by other workers. A linear correlation was found between the melting point depression (DELTA-T(m)) and the reciprocal diameter, as predicted by theories of solidification in a capillary. The calculated values of the solid-liquid interfacial energy sigma(sl) were in reasonable agreement with values reported in the literature based on other methods of measurement. RP NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. RI McKenna, Gregory/O-1134-2013; OI McKenna, Gregory/0000-0002-5676-9930; Jackson, Catheryn/0000-0003-1611-3926 NR 47 TC 545 Z9 554 U1 16 U2 80 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 15 PY 1990 VL 93 IS 12 BP 9002 EP 9011 DI 10.1063/1.459240 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000068 ER PT J AU SPRINGER, SR MCPHADEN, MJ BUSALACCHI, AJ AF SPRINGER, SR MCPHADEN, MJ BUSALACCHI, AJ TI OCEANIC HEAT-CONTENT VARIABILITY IN THE TROPICAL PACIFIC DURING THE 1982-1983 EL-NINO SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article ID EQUATORIAL PACIFIC; SEA-LEVEL; INTERANNUAL VARIABILITY; SOUTHERN OSCILLATION; SEASONAL CYCLE; MODEL; BOUNDARIES; MOTIONS; REFLECTION; SIMULATION AB Anomalous heat transport and storage during the 1982-1983 El Nino are investigated using a linear, multimode model forced by observed winds. Heat transport is decomposed into symmetric (about the equator) and antisymmetric components. The former was dominated by anomalous northward Ekman transport which represented an enhancement of the usual seasonal cycle. The latter involved both Ekman and geostrophic transports. Near-equatorial wind anomalies forced Kelvin and Rossby waves usually associated with El Nino; together these waves set up antisymmetric, geostrophic transport which tended to oppose direct Ekman transport. Because the opposition was imperfect, there was net heat convergence which caused variations in heat content in bands of latitude centered on the equator. Within a fairly narrow band (+/- 5-degrees) heat content was anomalously high preceding El Nino and was depleted following the event. Equatorial heat content anomalies were largely compensated by opposing anomalies in low latitudes of the extraequatorial ocean so that variability over broader bands of latitude about the equator was relatively small. A sampling study employing the model suggests that observational evidence for a heat content variations over the region +/- 15-degrees is an artifact arising from inadequate spatial resolution offered by the sea level measurement network. C1 NASA,GODDARD SPACE FLIGHT CTR,OCEANS LAB,GREENBELT,MD 20771. NOAA,PACIFIC MARINE ENVIRONM LAB,SEATTLE,WA 98115. RP SPRINGER, SR (reprint author), UNIV WASHINGTON,SCH OCEANOG,WB-10,SEATTLE,WA 98195, USA. RI McPhaden, Michael/D-9799-2016 NR 37 TC 35 Z9 38 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD DEC 15 PY 1990 VL 95 IS C12 BP 22089 EP 22101 DI 10.1029/JC095iC12p22089 PG 13 WC Oceanography SC Oceanography GA EP457 UT WOS:A1990EP45700001 ER PT J AU SERREZE, MC MASLANIK, JA PRELLER, RH BARRY, RG AF SERREZE, MC MASLANIK, JA PRELLER, RH BARRY, RG TI SEA ICE CONCENTRATIONS IN THE CANADA BASIN DURING 1988 - COMPARISONS WITH OTHER YEARS AND EVIDENCE OF MULTIPLE FORCING MECHANISMS SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article ID ARCTIC BASIN; SATELLITE; SUMMER; MODEL; ZONE; CLOUDINESS; EXCHANGE; IMAGERY; MOTION AB During summer 1988, a large area of reduced ice concentration developed within the Arctic pack ice of the Canada Basin. Data from the special sensor microwave imager (SSM/I) and visible-band imagery show that by early September, this feature extended north of 80-degrees-N, with SSM/I-derived ice concentrations of 40-80% covering an area approximately 1.0 x 10(6) km2. Drifting buoys, surface pressure fields, output from the Polar Ice Prediction System (PIPS) sea ice model and other meteorological data are used to examine processes responsible for development of the reduced ice concentrations. While the model indicates that ice divergence in summer offers a partial explanation, (1) anomalously warm atmospheric conditions, (2) generally clear skies in June and July, (3) extensive fracturing of the pack ice in spring and, perhaps, (4) anomalous advection of oceanic heat may all have played contributing roles. However, the second and third of these effects may occur in most years. Coupled with additional observations suggestive of recurring bathymetrically induced effects on lateral transport of ocean heat, we conclude that although the extent and magnitude of the concentration reductions during 1988 are unusual, these recurring factors tend to predispose the pack ice in the Canada Basin to decay. C1 USN,OCEAN & ATMOSPHER RES LAB,STENNIS SPACE CTR,MS 39529. RP SERREZE, MC (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309, USA. NR 51 TC 7 Z9 7 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD DEC 15 PY 1990 VL 95 IS C12 BP 22253 EP 22267 DI 10.1029/JC095iC12p22253 PG 15 WC Oceanography SC Oceanography GA EP457 UT WOS:A1990EP45700011 ER PT J AU GAWARKIEWICZ, G MCCARTHY, RK BARTON, K MASSE, AK CHURCH, TM AF GAWARKIEWICZ, G MCCARTHY, RK BARTON, K MASSE, AK CHURCH, TM TI A GULF STREAM-DERIVED PYCNOCLINE INTRUSION ON THE MIDDLE ATLANTIC BIGHT SHELF SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article ID EXCHANGE; FRONT; EVOLUTION; BREAK AB Saline intrusions from the upper slope onto the outer shelf are frequently observed at the pycnocline along the shelfbreak front in the Middle Atlantic Bight during the summer. A brief cruise was conducted in July, 1986 between Baltimore and Washington Canyons to examine along-shelf variability of pycnocline salinity intrusions. A particularly saline intrusion of 35.8 Practical Salinity Units (PSU) was observed between 20 and 40 m in a water depth of 70 to 80 m. The along-shelf extent was at least 40 km. The cooler, sub-pycnocline outer shelf water was displaced 15 km shoreward of the shelfbreak. A Gulf Stream filament was present in the slope region prior to the hydrographic sampling, but was not visible in thermal imagery during the hydrographic sampling. Temperature-salinity characteristics of the intrusion suggest that it was a mixture of Gulf Stream water and slope water, possibly from the filament. The shoreward penetration of saline water was most pronounced at the pycnocline and penetrated the shelfbreak front, with salinities as high as 35.0 PSU reaching as far shoreward as the 35 m isobath. These pycnocline intrusions may be an important mechanism for the transport of Gulf Stream-derived water onto the shelf during the summer. The presence of filaments or other Gulf Stream-derived water on the upper slope may account for some of the along-front variability of the pycnocline salinity maximum that has previously been observed. C1 NOAA,NATL MARINE FISHERIES SERV,NARRAGANSETT,RI 02882. UNIV DELAWARE,COLL MARINE STUDIES,NEWARK,DE 19711. NR 15 TC 10 Z9 10 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD DEC 15 PY 1990 VL 95 IS C12 BP 22305 EP 22313 DI 10.1029/JC095iC12p22305 PG 9 WC Oceanography SC Oceanography GA EP457 UT WOS:A1990EP45700016 ER PT J AU HENDON, HH LIEBMANN, B AF HENDON, HH LIEBMANN, B TI THE INTRASEASONAL (30-50 DAY) OSCILLATION OF THE AUSTRALIAN SUMMER MONSOON SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID 40-50 DAY OSCILLATION; OUTGOING LONGWAVE RADIATION; NORTHERN WINTER; ATMOSPHERE; TROPICS; FLUCTUATIONS; CONVECTION; PACIFIC; MODEL AB The tropical intraseasonal (30-50 day) oscillation manifests itself in the Australian summer monsoon by a pronounced modulation of the monsoonal westerlies. These 30-50 day fluctuations of the monsoonal westerlies are coherent with rainfall and OLR across northern Australia. The OLR fluctuation originates in the Indian Ocean and systematically propagates eastward at 5 m s-1, consistent with previous studies of the intraseasonal oscillation. The detailed evolution of the intraseasonal oscillation of the monsoon is studied via composites of upper air data in and about the Australian tropics. During the summer periods 1957-87, 91 events were identified at Darwin, Australia. The composite oscillation at Darwin has a very deep baroclinic structure with westerlies extending up to 300 mb. The westerly phase lasts about ten days and lags a similar duration rainfall event by about four days. During the westerly phase, the upper troposphere is warm and the extreme lower troposphere is cool. This structure is consistent with midtropospheric latent heating and lower tropospheric cooling due to evaporation of falling rain. The magnitude of the composite oscillation at Darwin is about 5 m s-1 in zonal wind, 1 m s-1 in meridional wind, 0.5-degrees-K in temperature, 5 mm rainfall per day, and 10% in relative humidity. The oscillation at Darwin is readily traced as far west as Cocos Island and as far east as Pago Pago. Above northern Australia, enhanced synoptic scale variability develops during the wet-westerly phase of the oscillation. Analysis of a single station record precludes documentation of the structure of these synoptic fluctuations. In the Northern Hemisphere midlatitudes, a wave train in 500 mb heights appears to emanate from the longitude of the Australian tropics during the wet-westerly phase. The magnitude of this wave train is only about 50 m while the wave train undergoes a systematic evolution as the tropical convective anomaly moves west to east, no sense of dispersion from a localized low-latitude heat source is evident. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP HENDON, HH (reprint author), UNIV COLORADO,CTR ATMOSPHER THEORY & ANAL,CAMPUS BOX 391,BOULDER,CO 80309, USA. NR 21 TC 134 Z9 143 U1 1 U2 8 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD DEC 15 PY 1990 VL 47 IS 24 BP 2909 EP 2923 DI 10.1175/1520-0469(1990)047<2909:TIDOOT>2.0.CO;2 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EW643 UT WOS:A1990EW64300007 ER PT J AU XU, Q AF XU, Q TI A THEORETICAL-STUDY OF COLD AIR DAMMING SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article AB The dynamics of cold air damming are examined analytically with a two-layer steady state model. The upper layer is a warm and saturated cross-mountain (easterly or southeasterly onshore) flow. The lower layer is a cold mountain-parallel (northerly) jet trapped on the windward (eastern) side of the mountain. The interface between the two layers represents a coastal front-a sloping inversion layer coupling the trapped cold dome with the warm onshore flow above through pressure continuity. An analytical expression is obtained for the inviscid upper-layer flow with hydrostatic and moist adiabatic approximations. Blackadar's PBL parameterization of eddy viscosity is used in the lower-layer equations. Solutions for the mountain-parallel jet and its associated secondary transverse circulation are obtained by expanding asymptotically upon a small parameter proportional to the square root of the inertial aspect ratio-the ratio between the mountain height and the radius of inertial oscillation. The geometric shape of the sloping interface is solved numerically from a differential-integral equation derived from the pressure continuity condition imposed at the interface. The observed flow structures and force balances of cold air damming events are produced qualitatively by the model. In the cold dome the mountain-parallel jet is controlled by the competition between the mountain-parallel pressure gradient and friction: the jet is stronger with smoother surfaces, higher mountains, and faster mountain-normal geostrophic winds. In the mountain-normal direction the vertically averaged force balance in the cold dome is nearly geostrophic and controls the geometric shape of the cold dome. The basic mountain-normal pressure gradient generated in the cold dome by the negative buoyancy distribution tends to flatten the sloping interface and expand the cold dome upstream against the mountain-normal pressure gradient (produced by the upper-layer onshore wind) and Coriolis force (induced by the lower-layer mountain-parallel jet). It is found that the interface slope increases and the cold dome shrinks as the Froude number and/or upstream mountain-parallel geostrophic wind increase, or as the Rossby number, upper-layer depth, and/or surface roughness length decrease, and vice versa. The cold dome will either vanish or not be in a steady state if the Froude number is large enough or the roughness length gets too small. The theoretical findings are explained physically based on detailed analyses of the force balance along the inversion interface. RP XU, Q (reprint author), UNIV OKLAHOMA,NOAA,CIMMS,401 E BOYD,NORMAN,OK 73019, USA. NR 10 TC 31 Z9 32 U1 2 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD DEC 15 PY 1990 VL 47 IS 24 BP 2969 EP 2985 DI 10.1175/1520-0469(1990)047<2969:ATSOCA>2.0.CO;2 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EW643 UT WOS:A1990EW64300010 ER PT J AU BERG, RF MOLDOVER, MR AF BERG, RF MOLDOVER, MR TI CRITICAL EXPONENT FOR VISCOSITY SO PHYSICAL REVIEW A LA English DT Article ID RANGE 25-700 DEGREES; TRANSPORT-PROPERTIES; CARBON-DIOXIDE; CRITICAL-POINT; CLASSICAL FLUID; CRITICAL REGION; LOW-FREQUENCY; TEMPERATURE; VISCOMETER; EQUATIONS AB We have measured the critical exponent y characterizing the divergence of the viscosity eta-infinity [T - T(c)[-y for carbon dioxide and xenon. The values of y for both fluids fall within the range y = 0.041 +/- 0.001 and are consistent with the range y = 0.042 +/- 0.002 spanned by our earlier data for four binary liquid mixtures. This agreement is the strongest evidence that pure fluids and binary liquids are in the same dynamic universality class; however, the results for y are inconsistent with the recent theoretical value of 0.032. RP BERG, RF (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899, USA. RI Moldover, Michael/E-6384-2013 NR 34 TC 22 Z9 22 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD DEC 15 PY 1990 VL 42 IS 12 BP 7183 EP 7186 DI 10.1103/PhysRevA.42.7183 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EP283 UT WOS:A1990EP28300020 ER PT J AU WANG, NS HOWARD, CJ AF WANG, NS HOWARD, CJ TI KINETICS OF THE REACTIONS OF HS AND HSO WITH O3 SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article C1 NOAA,AERON LAB,R-E-AL2,325 BROADWAY,BOULDER,CO 80303. UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. UNIV COLORADO,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. NR 39 TC 44 Z9 44 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD DEC 13 PY 1990 VL 94 IS 25 BP 8787 EP 8794 DI 10.1021/j100388a009 PG 8 WC Chemistry, Physical SC Chemistry GA EM664 UT WOS:A1990EM66400009 ER PT J AU ALFASSI, ZB HUIE, RE NETA, P SHOUTE, LCT AF ALFASSI, ZB HUIE, RE NETA, P SHOUTE, LCT TI TEMPERATURE-DEPENDENCE OF THE RATE CONSTANTS FOR REACTION OF INORGANIC RADICALS WITH ORGANIC REDUCTANTS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article C1 NATL INST STANDARDS & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899. RI Huie, Robert/A-5645-2010 NR 29 TC 51 Z9 52 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD DEC 13 PY 1990 VL 94 IS 25 BP 8800 EP 8805 DI 10.1021/j100388a011 PG 6 WC Chemistry, Physical SC Chemistry GA EM664 UT WOS:A1990EM66400011 ER PT J AU CHAE, HB SCHMIDT, JW MOLDOVER, MR AF CHAE, HB SCHMIDT, JW MOLDOVER, MR TI ALTERNATIVE REFRIGERANTS R123A, R134, R141B, R142B, AND R152A - CRITICAL-TEMPERATURE, REFRACTIVE-INDEX, SURFACE-TENSION, AND ESTIMATES OF LIQUID, VAPOR, AND CRITICAL DENSITIES SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article C1 NATL INST STANDARDS & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899. RI Moldover, Michael/E-6384-2013 NR 15 TC 61 Z9 61 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD DEC 13 PY 1990 VL 94 IS 25 BP 8840 EP 8845 DI 10.1021/j100388a018 PG 6 WC Chemistry, Physical SC Chemistry GA EM664 UT WOS:A1990EM66400018 ER PT J AU BRYAN, GL VOLK, K KWOK, S AF BRYAN, GL VOLK, K KWOK, S TI ON THE FORMATION OF CARBON STARS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. RP BRYAN, GL (reprint author), UNIV CALGARY,DEPT PHYS & ASTRON,CALGARY T2N 1N4,ALBERTA,CANADA. RI Kwok, Sun/D-3080-2009; OI Kwok, Sun/0000-0001-7708-081X; Bryan, Greg/0000-0003-2630-9228 NR 52 TC 21 Z9 21 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 10 PY 1990 VL 365 IS 1 BP 301 EP 311 DI 10.1086/169483 PN 1 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900031 ER PT J AU VINCENT, MA BENDER, PL AF VINCENT, MA BENDER, PL TI ORBIT DETERMINATION AND GRAVITATIONAL-FIELD ACCURACY FOR A MERCURY TRANSPONDER SATELLITE SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,DIV QUANTUM PHYS,BOULDER,CO. UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309. NR 7 TC 4 Z9 4 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 21357 EP 21361 DI 10.1029/JB095iB13p21357 PG 5 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700003 ER PT J AU BENZ, HM SMITH, RB MOONEY, WD AF BENZ, HM SMITH, RB MOONEY, WD TI CRUSTAL STRUCTURE OF THE NORTHWESTERN BASIN AND RANGE PROVINCE FROM THE 1986 PROGRAM FOR ARRAY SEISMIC STUDIES OF THE CONTINENTAL LITHOSPHERE SEISMIC EXPERIMENT SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 UNIV UTAH, DEPT NOAA, SALT LAKE CITY, UT 84112 USA. RP US GEOL SURVEY, 345 MIDDLEFIELD RD, MS 977, MENLO PK, CA 94025 USA. NR 60 TC 54 Z9 55 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 21823 EP 21842 DI 10.1029/JB095iB13p21823 PG 20 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700041 ER PT J AU NAHOR, GS SHOUTE, LCT NETA, P HARRIMAN, A AF NAHOR, GS SHOUTE, LCT NETA, P HARRIMAN, A TI REDUCTION OF DINITROGEN TO AMMONIA IN AQUEOUS-SOLUTION MEDIATED BY COLLOIDAL METALS SO JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS LA English DT Article C1 UNIV TEXAS,CTR FAST KINET RES,AUSTIN,TX 78712. RP NAHOR, GS (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. NR 39 TC 3 Z9 3 U1 0 U2 5 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0956-5000 J9 J CHEM SOC FARADAY T JI J. Chem. Soc.-Faraday Trans. PD DEC 7 PY 1990 VL 86 IS 23 BP 3927 EP 3933 DI 10.1039/ft9908603927 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL407 UT WOS:A1990EL40700014 ER PT J AU MCPHADEN, MJ PICAUT, J AF MCPHADEN, MJ PICAUT, J TI EL-NINO SOUTHERN OSCILLATION DISPLACEMENTS OF THE WESTERN EQUATORIAL PACIFIC WARM POOL SO SCIENCE LA English DT Article C1 ORSTOM,ORSTOM,INST FRANCAIS RECH SCI DEV & COOPERAT,GRP SURTROPAC,NOUMEA,NEW CALEDONIA. RP MCPHADEN, MJ (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,7600 SAND POINT WAY NE,SEATTLE,WA 98115, USA. RI McPhaden, Michael/D-9799-2016 NR 38 TC 109 Z9 117 U1 1 U2 7 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD DEC 7 PY 1990 VL 250 IS 4986 BP 1385 EP 1388 DI 10.1126/science.250.4986.1385 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EL843 UT WOS:A1990EL84300034 PM 17754983 ER PT J AU DAGATA, JA TSENG, W BENNETT, J EVANS, CJ SCHNEIR, J HARARY, HH AF DAGATA, JA TSENG, W BENNETT, J EVANS, CJ SCHNEIR, J HARARY, HH TI SELECTIVE-AREA EPITAXIAL-GROWTH OF GALLIUM-ARSENIDE ON SILICON SUBSTRATES PATTERNED USING A SCANNING TUNNELING MICROSCOPE OPERATING IN AIR SO APPLIED PHYSICS LETTERS LA English DT Article RP DAGATA, JA (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 12 TC 21 Z9 21 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD DEC 3 PY 1990 VL 57 IS 23 BP 2437 EP 2439 DI 10.1063/1.103869 PG 3 WC Physics, Applied SC Physics GA EK726 UT WOS:A1990EK72600016 ER PT J AU HARVEY, AH CROVETTO, R SENGERS, JMHL AF HARVEY, AH CROVETTO, R SENGERS, JMHL TI LIMITING VS APPARENT CRITICAL-BEHAVIOR OF HENRY CONSTANTS AND K-FACTORS SO AICHE JOURNAL LA English DT Note ID PRESSURE PHASE-EQUILIBRIA; PVT-DATA; SYSTEM; WATER; SOLUBILITY; NITROGEN; 673-K; LAW C1 NIST,DIV THERMOPHYS,GAITHERSBURG,MD 20899. NR 17 TC 26 Z9 26 U1 1 U2 2 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0001-1541 J9 AICHE J JI AICHE J. PD DEC PY 1990 VL 36 IS 12 BP 1901 EP 1904 DI 10.1002/aic.690361214 PG 4 WC Engineering, Chemical SC Engineering GA EN963 UT WOS:A1990EN96300013 ER PT J AU LOCASCIOBROWN, L PLANT, AL HORVATH, V DURST, RA AF LOCASCIOBROWN, L PLANT, AL HORVATH, V DURST, RA TI LIPOSOME FLOW-INJECTION IMMUNOASSAY - IMPLICATIONS FOR SENSITIVITY, DYNAMIC-RANGE, AND ANTIBODY REGENERATION SO ANALYTICAL CHEMISTRY LA English DT Article RP LOCASCIOBROWN, L (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. RI Horvath, Viola/A-5158-2008 OI Horvath, Viola/0000-0003-1014-7930 NR 22 TC 94 Z9 94 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD DEC 1 PY 1990 VL 62 IS 23 BP 2587 EP 2593 DI 10.1021/ac00222a013 PG 7 WC Chemistry, Analytical SC Chemistry GA EK803 UT WOS:A1990EK80300015 PM 2288414 ER PT J AU VANBRAMER, SE JOHNSTON, MV AF VANBRAMER, SE JOHNSTON, MV TI PHOTODISSOCIATION PHOTOIONIZATION MASS-SPECTROMETRY OF N-OCTENE ISOMERS SO ANALYTICAL CHEMISTRY LA English DT Letter C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. FU NCRR NIH HHS [2S07RR07013] NR 15 TC 19 Z9 19 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD DEC 1 PY 1990 VL 62 IS 23 BP 2639 EP 2643 DI 10.1021/ac00222a023 PG 5 WC Chemistry, Analytical SC Chemistry GA EK803 UT WOS:A1990EK80300025 PM 2288417 ER PT J AU MIGDALL, AL ROOP, B ZHENG, YC HARDIS, JE XIA, GJ AF MIGDALL, AL ROOP, B ZHENG, YC HARDIS, JE XIA, GJ TI USE OF HETERODYNE-DETECTION TO MEASURE OPTICAL TRANSMITTANCE OVER A WIDE-RANGE SO APPLIED OPTICS LA English DT Article RP MIGDALL, AL (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 10 TC 20 Z9 20 U1 0 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 1 PY 1990 VL 29 IS 34 BP 5136 EP 5144 PG 9 WC Optics SC Optics GA EN069 UT WOS:A1990EN06900025 PM 20577525 ER PT J AU DAGATA, JA VILLA, E LIN, MC AF DAGATA, JA VILLA, E LIN, MC TI UV DESORPTION AND PHOTOCHEMISTRY OF DIMETHYLGOLD HEXAFLUOROACETYLACETONATE ADSORBED ON A QUARTZ SUBSTRATE SO APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY LA English DT Article C1 USN,RES LAB,EO HULBURT CTR SPACE RES,DIV CHEM,WASHINGTON,DC 20375. EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322. RP DAGATA, JA (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 15 TC 5 Z9 5 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0721-7269 J9 APPL PHYS B-PHOTO PD DEC PY 1990 VL 51 IS 6 BP 443 EP 450 DI 10.1007/BF00329109 PG 8 WC Physics, Applied SC Physics GA EM030 UT WOS:A1990EM03000011 ER PT J AU BARRON, MG STEHLY, GR HAYTON, WL AF BARRON, MG STEHLY, GR HAYTON, WL TI PHARMACOKINETIC MODELING IN AQUATIC ANIMALS .1. MODELS AND CONCEPTS SO AQUATIC TOXICOLOGY LA English DT Review C1 NOAA,GREAT LAKES ENVIRONM RES LAB,ANN ARBOR,MI. WASHINGTON STATE UNIV,PHARMACOL TOXICOL PROGRAM,PULLMAN,WA 99164. WASHINGTON STATE UNIV,COLL PHARM,PULLMAN,WA 99164. RP BARRON, MG (reprint author), DOW CHEM CO USA,ENVIRONM TOXICOL & CHEM RES LAB,1702 BLDG,MIDLAND,MI 48674, USA. NR 70 TC 84 Z9 88 U1 1 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0166-445X J9 AQUAT TOXICOL JI Aquat. Toxicol. PD DEC PY 1990 VL 18 IS 2 BP 61 EP 86 DI 10.1016/0166-445X(90)90019-L PG 26 WC Marine & Freshwater Biology; Toxicology SC Marine & Freshwater Biology; Toxicology GA EM368 UT WOS:A1990EM36800001 ER PT J AU BAADE, D SCHMUTZ, W VANKERKWIJK, M AF BAADE, D SCHMUTZ, W VANKERKWIJK, M TI SHORT-TERM ACTIVITY IN THE GAMMA-2-VELORUM SYSTEM - THE O-TYPE SUPERGIANT IS A NONRADIALLY PULSATING STAR SO ASTRONOMY & ASTROPHYSICS LA English DT Article C1 UNIV COLORADO, JOINT INST LAB ASTROPHYS, BOULDER, CO 80309 USA. NATL INST STANDARDS & TECHNOL, BOULDER, CO 80309 USA. UNIV AMSTERDAM, ASTRON INST ANTON PANNEKOEK, 1018 WB AMSTERDAM, NETHERLANDS. RP BAADE, D (reprint author), EUROPEAN SO OBSERV, KARL SCHWARZSCHILD STR 2, W-8046 GARCHING, GERMANY. RI Schmutz, Werner/B-4153-2014 OI Schmutz, Werner/0000-0003-1159-5639 NR 44 TC 13 Z9 13 U1 0 U2 0 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD DEC PY 1990 VL 240 IS 1 BP 105 EP 115 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM521 UT WOS:A1990EM52100012 ER PT J AU HEFFTER, JL STUNDER, BJB ROLPH, GD AF HEFFTER, JL STUNDER, BJB ROLPH, GD TI LONG-RANGE FORECAST TRAJECTORIES OF VOLCANIC ASH FROM REDOUBT VOLCANO ERUPTIONS SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article AB The Redoubt Volcano in Alaska began a series of eruptions on 14 December 1989. Volcanic ash was often reported to reach heights where as it moved with the upper-level flow, it could affect aircraft operations thousands of km from the eruption. In an agreement between the National Oceanic and Atmospheric Administration (NOAA) and the Federal Aviation Administration, the NOAA Air Resources Laboratory (ARL) was assigned responsibility for providing long-range forecast trajectories of volcanic ash during a volcanic hazards alert. An ARL immediate-response program was implemented for the Redoubt Volcano eruptions. The response products, in the form of tables, maps, and written messages are discussed. An evaluation of the forecast trajectories is included. The evaluation is based on after-the-fact trajectories from analyzed wind fields and on actual ash cloud sightings. For 90% of the cases verified at 300 mb, the average forecast error was less than 25% of the downwind distance from the eruption (this often included distances beyond 5000 km). At 500 mb, the forecast error was less than 50%. Errors were inversely proportional to wind speeds. RP HEFFTER, JL (reprint author), NOAA,AIR RESOURCES LAB,SILVER SPRING,MD 20910, USA. RI Rolph, Glenn/P-6860-2015; Stunder, Barbara/C-3106-2016 NR 10 TC 7 Z9 7 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD DEC PY 1990 VL 71 IS 12 BP 1731 EP 1738 DI 10.1175/1520-0477(1990)071<1731:LRFTOV>2.0.CO;2 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER619 UT WOS:A1990ER61900002 ER PT J AU GEORGES, TM THOME, GD AF GEORGES, TM THOME, GD TI AN OPPORTUNITY FOR LONG-DISTANCE OCEANOGRAPHIC AND METEOROLOGICAL MONITORING USING OVER-THE-HORIZON DEFENSE RADARS SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article ID HF SKYWAVE RADAR; SURFACE; OCEAN AB Ocean-monitoring tasks can be added to military over-the-horizon radars at modest incremental cost. A surface-wind-direction analysis for the Caribbean made with a U.S. Navy radar illustrates one capability of such a system. Surface wind speed and ocean wave height are also available as by-products of the radars' surveillance missions if longer coherent-integration times are used to resolve the second-order sea echo. C1 RAYTHEON CO,DIV EQUIPMENT,WAYLAND,MA 01778. RP GEORGES, TM (reprint author), NOAA,WAVE PROPAGAT LAB,BOULDER,CO 80303, USA. NR 24 TC 5 Z9 5 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD DEC PY 1990 VL 71 IS 12 BP 1739 EP 1745 DI 10.1175/1520-0477(1990)071<1739:AOFLDO>2.0.CO;2 PG 7 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER619 UT WOS:A1990ER61900003 ER PT J AU DOUGLAS, MW AF DOUGLAS, MW TI THE SELECTION AND USE OF DROPWINDSONDE-EQUIPPED AIRCRAFT FOR OPERATIONAL FORECASTING APPLICATIONS SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article ID DATA ASSIMILATION; PREDICTION AB This article discusses the feasibility of using dropwindsonde-equipped aircraft to obtain meteorological observations over oceanic data-void areas for operational forecasting applications. Such in-situ meteorological observations would provide measurements of wind, temperature, and moisture at a higher vertical resolution and greater accuracy than currently available from satellite-derived observations. Such airborne observations, if globally obtained, would greatly enhance global datasets for both numerical weather prediction and for research studies of large-scale phenomena, such as the El Nino/Southern Oscillation. The aircraft could also serve as platforms for collecting frequent oceanic thermal and current information. The advantages and limitations of a dropwindsonde-based observing system are compared with current and proposed ground- and satellite-based systems. RP DOUGLAS, MW (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309, USA. NR 34 TC 3 Z9 3 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD DEC PY 1990 VL 71 IS 12 BP 1746 EP 1757 DI 10.1175/1520-0477(1990)071<1746:TSAUOD>2.0.CO;2 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER619 UT WOS:A1990ER61900004 ER PT J AU KIMURA, DK AF KIMURA, DK TI APPROACHES TO AGE-STRUCTURED SEPARABLE SEQUENTIAL POPULATION ANALYSIS SO CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES LA English DT Article RP KIMURA, DK (reprint author), NATL MARINE FISHERIES SERV,ALASKA FISHERIES SCI CTR,BLDG 4,BIN C15700,7600 SAND POINT WAY NE,SEATTLE,WA 98115, USA. NR 12 TC 37 Z9 37 U1 0 U2 5 PU NATL RESEARCH COUNCIL CANADA PI OTTAWA PA RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADA SN 0706-652X J9 CAN J FISH AQUAT SCI JI Can. J. Fish. Aquat. Sci. PD DEC PY 1990 VL 47 IS 12 BP 2364 EP 2374 PG 11 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA EM311 UT WOS:A1990EM31100011 ER PT J AU GERRODETTE, T GILMARTIN, WG AF GERRODETTE, T GILMARTIN, WG TI DEMOGRAPHIC CONSEQUENCES OF CHANGED PUPPING AND HAULING SITES OF THE HAWAIIAN MONK SEAL SO CONSERVATION BIOLOGY LA English DT Article AB During the last 30 years, changes in the size of Hawaiian monk seal populations at several locations have been associated with the amount and type of human disturbance. Recreational beach activities caused monk seals to alter their pupping and hauling patterns. Survival of pups in suboptimal habitats was low, leading to gradual population declines. During the last decade at Kure Atoll, the process has been reversed: human disturbance on beaches has decreased, and traditional pupping and hauling sites have been reestablished. Subsequently, high survival rates of young seals, coupled with two successful enhancement programs for female pups, have led to dramatic changes in the age and sex composition of the population. Based on these changes, the monk seal population at Kure Atoll soon should begin to increase. Apparently small behavioral changes in such vital activities as feeding and reproduction can have large demographic consequences. Therefore, monitoring of endangered species should include data on habitat use and age and sex composition, as well as estimates of abundance. RP GERRODETTE, T (reprint author), NOAA,NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,POB 271,LA JOLLA,CA 92038, USA. NR 0 TC 48 Z9 53 U1 5 U2 23 PU BLACKWELL SCIENCE INC PI CAMBRIDGE PA 238 MAIN ST, CAMBRIDGE, MA 02142 SN 0888-8892 J9 CONSERV BIOL JI Conserv. Biol. PD DEC PY 1990 VL 4 IS 4 BP 423 EP 430 DI 10.1111/j.1523-1739.1990.tb00317.x PG 8 WC Biodiversity Conservation; Ecology; Environmental Sciences SC Biodiversity & Conservation; Environmental Sciences & Ecology GA EN685 UT WOS:A1990EN68500013 ER PT J AU VAS, P AF VAS, P TI THE SHARK CATCH OF 1978 IN THE WESTERN ENGLISH-CHANNEL SO ENVIRONMENTAL BIOLOGY OF FISHES LA English DT Note RP VAS, P (reprint author), NOAA,NATL MARINE FISHERIES SERV,SE FISHERIES CTR,MIAMI LAB,MIAMI,FL 33149, USA. NR 23 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0378-1909 J9 ENVIRON BIOL FISH JI Environ. Biol. Fishes PD DEC PY 1990 VL 29 IS 4 BP 315 EP 317 DI 10.1007/BF00001188 PG 3 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA EF409 UT WOS:A1990EF40900006 ER PT J AU WARLEN, SM BURKE, JS AF WARLEN, SM BURKE, JS TI IMMIGRATION OF LARVAE OF FALL WINTER SPAWNING MARINE FISHES INTO A NORTH-CAROLINA ESTUARY SO ESTUARIES LA English DT Article ID YORK RIVER ESTUARY; MNEMIOPSIS-LEIDYI; LEIOSTOMUS-XANTHURUS; NARRAGANSETT BAY; MICROPOGONIAS-UNDULATUS; BREVOORTIA-TYRANNUS; ATLANTIC MENHADEN; ABUNDANCE; CTENOPHORE; PREDATION AB Larval fishes were sampled weekly from late fall to early spring in the Newport River estuary just inside Beaufort Inlet, North Carolina. Quantitative samples were taken during darkness at mid-flood tide with paired 60-cm bongo nets (505-mu-m mesh). Larvae of 22 species from 15 families were collected. Seventy-seven percent of the species and 97% of the individuals were fishes that had been spawned on the continental shelf and had immigrated to the estuary. In descending order, the five most abundant species, accounting for 90% of the individuals, were spot (Leiostomus xanthurus), Atlantic croaker (Micropogonias undulatus), Atlantic menhaden (Brevoortia tyrannus), pinfish (Lagodon rhomboides), and speckled worm eel (Myrophis punctatus). Most species immigrated throughout the winter and into spring, but there were distinct patterns in their temporal abundances. C1 N CAROLINA STATE UNIV,DEPT ZOOL,RALEIGH,NC 27607. RP WARLEN, SM (reprint author), NOAA,NATL MARINE FISHERIES SERV,SE FISHERIES CTR,BEAUFORT LAB,BEAUFORT,NC 28516, USA. NR 38 TC 78 Z9 81 U1 0 U2 5 PU ESTUARINE RES FEDERATION PI LAWRENCE PA PO BOX 368, LAWRENCE, KS 66044 SN 0160-8347 J9 ESTUARIES JI Estuaries PD DEC PY 1990 VL 13 IS 4 BP 453 EP 461 DI 10.2307/1351789 PG 9 WC Environmental Sciences; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA ET548 UT WOS:A1990ET54800010 ER PT J AU KARSON, JA RONA, PA AF KARSON, JA RONA, PA TI BLOCK-TILTING, TRANSFER FAULTS, AND STRUCTURAL CONTROL OF MAGMATIC AND HYDROTHERMAL PROCESSES IN THE TAG AREA, MID-ATLANTIC RIDGE 26-DEGREES-N SO GEOLOGICAL SOCIETY OF AMERICA BULLETIN LA English DT Article C1 NOAA,ATLANTIC OCEANOG & METEOROL LAB,MIAMI,FL 33149. RP KARSON, JA (reprint author), DUKE UNIV,DEPT GEOL,DURHAM,NC 27706, USA. NR 50 TC 93 Z9 93 U1 2 U2 8 PU GEOLOGICAL SOC AMERICA PI BOULDER PA PO BOX 9140 3300 PENROSE PLACE, BOULDER, CO 80301 SN 0016-7606 J9 GEOL SOC AM BULL JI Geol. Soc. Am. Bull. PD DEC PY 1990 VL 102 IS 12 BP 1635 EP 1645 DI 10.1130/0016-7606(1990)102<1635:BTTFAS>2.3.CO;2 PG 11 WC Geosciences, Multidisciplinary SC Geology GA EM176 UT WOS:A1990EM17600003 ER PT J AU DIAZ, HF AF DIAZ, HF TI A COMPARISON OF GLOBAL TEMPERATURE ESTIMATES FROM SATELLITE AND INSTRUMENTAL DATA, 1979-88 SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article AB A comparison of surface temperature changes over land and ocean areas with tropospheric air temperatures derived from satellite measurements over the period 1979-88 reveals differences in the relative rankings of the individual yearly values over the oceans. The discrepancy occurs mainly in the warm half of the set of years, with good agreement evident during the colder half. Since the land data agrees well with the satellite measurements, unless there is an unknown problem with the surface marine temperatures, it appears that interannual surface temperature variations over the oceans compare poorly with such variations in the troposphere above it, particularly when the oceans are relatively warm. Agreement between the satellite measurements and an index of tropospheric temperature derived from a set of globally distributed radiosonde stations is excellent. RP DIAZ, HF (reprint author), NOAA,ENVIRONM RES LABS,BOULDER,CO 80303, USA. NR 9 TC 2 Z9 2 U1 1 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD DEC PY 1990 VL 17 IS 13 BP 2373 EP 2376 DI 10.1029/GL017i013p02373 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EN701 UT WOS:A1990EN70100024 ER PT J AU WANG, WC ZENG, ZM KARL, TR AF WANG, WC ZENG, ZM KARL, TR TI URBAN HEAT ISLANDS IN CHINA SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID TEMPERATURE TRENDS AB We used 1954-1983 surface temperature from 42 Chinese urban (average population 1.7*10(6)) and rural (average population 1.5*10(5)) station pairs to study the urban heat island effects. Despite the fact that the rural stations are not true rural stations, the magnitude of the heat islands was calculated to average 0.23-degrees-C over the thirty-year period with a minimum value during the 1964-1973 decade and maximum during the most recent decade. The urban heat islands were found to have seasonal dependence which varied considerably across the country. The urban heat islands also had a strong regional dependence with the Northern Plains dominating the magnitude of the heat islands. The changes in heat island intensity over three decades studied suggest a general increase in heat island intensity of about 0.2-degrees-C, but this has not been constant in time. These results suggest that caution must be exercised when attributing causes to observed trends when stations are located in the vicinity of metropolitan areas. C1 NOAA,NATL CLIMAT DATA CTR,ASHEVILLE,NC 28801. CHINESE ACAD SCI,INST ATMOSPHER SCI,BEIJING,PEOPLES R CHINA. RP WANG, WC (reprint author), SUNY ALBANY,ATMOSPHER SCI RES CTR,100 FULLER RD,ALBANY,NY 12205, USA. NR 11 TC 68 Z9 100 U1 2 U2 10 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD DEC PY 1990 VL 17 IS 13 BP 2377 EP 2380 DI 10.1029/GL017i013p02377 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EN701 UT WOS:A1990EN70100025 ER PT J AU HITTELMAN, AM KINSFATHER, JO MEYERS, H AF HITTELMAN, AM KINSFATHER, JO MEYERS, H TI COMPILING NORTH-AMERICA - GEOLOGY ON COMPACT-DISK SO GEOTIMES LA English DT Article RP HITTELMAN, AM (reprint author), NOAA,NATL GEOPHYS DATA CTR,BOULDER,CO 80303, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER GEOLOGICAL INST PI ALEXANDRIA PA 4220 KING ST, ALEXANDRIA, VA 22302-1507 SN 0016-8556 J9 GEOTIMES JI Geotimes PD DEC PY 1990 VL 35 IS 12 BP 16 EP 17 PG 2 WC Geosciences, Multidisciplinary SC Geology GA EL965 UT WOS:A1990EL96500015 ER PT J AU MUTH, LA LEWIS, RL AF MUTH, LA LEWIS, RL TI A GENERAL TECHNIQUE TO CORRECT PROBE POSITION ERRORS IN PLANAR NEAR-FIELD MEASUREMENTS TO ARBITRARY ACCURACY SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article AB A general theoretical procedure is presented to remove known probe position errors when planar near-field data are transformed to the far field. We represent the measured data as a Taylor series, whose terms contain the error function and the ideal spectrum of the antenna. This representation is then assumed to be an actual near field existing on an error free regularly spaced two dimensional scan plane. Then by inverting the Taylor series, we obtain the ideal spectrum in terms of the measured data and the position errors. The solution is given by an infinite series of an error operator acting on data containing errors of measurement. This error operator is the Taylor series without the zeroth-order term. the nth order approximation to the ideal near field of the antenna can be explicitly constructed by inspection of the structure of the error operator. Since we have an infinite series of a differential operator, the question of convergence is addressed. Computer simulations using periodic error functions show that we are dealing with a convergent series, and the error correction technique is seen to be highly successful. This is demonstrated for a triple periodic error function. The root mean square (rms) values of the far fields as functions of the radius in k space are calculated and compared for the error-free, error-contaminated and error-corrected far fields. Appropriate graphical representation of the error fields, the error-contaminated and error-free fields are presented to enhance understanding of the results. RP MUTH, LA (reprint author), US DEPT COMMERCE,NATL INST STAND & TECHNOL,325 BROADWAY,BOULDER,CO 80303, USA. NR 9 TC 7 Z9 8 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD DEC PY 1990 VL 38 IS 12 BP 1925 EP 1932 DI 10.1109/8.60981 PG 8 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EP390 UT WOS:A1990EP39000004 ER PT J AU HOWE, DA AF HOWE, DA TI TIME TRACKING ERROR IN DIRECT-SEQUENCE SPREAD-SPECTRUM NETWORKS DUE TO COHERENCE AMONG SIGNALS SO IEEE TRANSACTIONS ON COMMUNICATIONS LA English DT Letter ID SATELLITES AB High data rate communications networks, navigation, and some types of time synchronization networks which use spread-spectrum modulation in a CDMA (code-division multiple-access) mode are subject to a time tracking (or time synchronization) error related to the degree of signal frequency agreement or coherence among involved communicators. As reference oscillator stabilities improve and various frequency offsets decrease in networks involving several interfering spread-spectrum signals, the degree of carrier and code coherence increases. In this paper, data are presented showing more than a twenty-fold increase in the time synchronization uncertainty (from 0.3 to 7 ns) due to interference of two spread-spectrum signals having a high degree of signal coherence. RP HOWE, DA (reprint author), NATL INST STAND & TECHNOL,BOULDER,CO 80303, USA. NR 5 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0090-6778 J9 IEEE T COMMUN JI IEEE Trans. Commun. PD DEC PY 1990 VL 38 IS 12 BP 2103 EP 2105 DI 10.1109/26.64650 PG 3 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA ER317 UT WOS:A1990ER31700006 ER PT J AU GANS, WL AF GANS, WL TI DYNAMIC CALIBRATION OF WAVE-FORM RECORDERS AND OSCILLOSCOPES USING PULSE STANDARDS SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article RP GANS, WL (reprint author), NATL INST STANDARDS & TECHNOL,DIV ELECTROMAGNET FIELDS,BOULDER,CO 80303, USA. NR 9 TC 27 Z9 32 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD DEC PY 1990 VL 39 IS 6 BP 952 EP 957 DI 10.1109/19.65804 PG 6 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA EM731 UT WOS:A1990EM73100030 ER PT J AU REEVE, G MARKS, R BLACKBURN, D AF REEVE, G MARKS, R BLACKBURN, D TI MICROWAVE MONOLITHIC INTEGRATED CIRUIT-RELATED METROLOGY AT THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article C1 NATL INST STANDARDS & TECHNOL,DIV 727,GAITHERSBURG,MD 20899. RP REEVE, G (reprint author), NATL INST STANDARDS & TECHNOL,DIV 723,BOULDER,CO 80303, USA. NR 4 TC 4 Z9 4 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD DEC PY 1990 VL 39 IS 6 BP 958 EP 961 DI 10.1109/19.65805 PG 4 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA EM731 UT WOS:A1990EM73100031 ER PT J AU BURROUGHS, CJ HAMILTON, CA AF BURROUGHS, CJ HAMILTON, CA TI VOLTAGE CALIBRATION SYSTEMS USING JOSEPHSON JUNCTION ARRAYS SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article RP BURROUGHS, CJ (reprint author), NATL INST STANDARDS & TECHNOL,BOULDER,CO 80303, USA. NR 10 TC 1 Z9 1 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD DEC PY 1990 VL 39 IS 6 BP 972 EP 975 DI 10.1109/19.65809 PG 4 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA EM731 UT WOS:A1990EM73100035 ER PT J AU DESROSIERS, MF MCLAUGHLIN, WL SHEAHEN, LA DODD, NJF LEA, JS EVANS, JC ROWLANDS, CC RAFFI, JJ AGNEL, JPL AF DESROSIERS, MF MCLAUGHLIN, WL SHEAHEN, LA DODD, NJF LEA, JS EVANS, JC ROWLANDS, CC RAFFI, JJ AGNEL, JPL TI CO-TRIAL ON ESR IDENTIFICATION AND ESTIMATES OF GAMMA-RAY AND ELECTRON ABSORBED DOSES GIVEN TO MEAT AND BONES SO INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY LA English DT Article DE CHICKEN LEGS; DOSIMETRY; FOOD, FROG LEGS; PORK; RADIATION ID SPIN-RESONANCE; IRRADIATED FOOD AB A multinational co-trial was organized to determine if electron spin resonance (ESR) spectroscopy could be used to monitor foods exposed to ionizing radiation. The bones of chicken legs, frog legs and pork rib bones were prepared and distributed as unknowns to the participating laboratories. In every instance, non-irradiated bones were correctly identified as such. Moreover, irradiated bones were not only correctly identified, but relatively good estimates of the absorbed dose were obtained. An intercomparison of the different approaches used by each laboratory is discussed, and recommendations for future trials are presented. C1 CHRISTIE HOSP & HOLT RADIUM INST, PATERSON INST CANC RES, MANCHESTER M20 9BX, LANCS, ENGLAND. SCH CHEM & APPL CHEM CARDIFF, CARDIFF CF1 3TD, WALES. CEN CADARACHE, DB, SRA, RADIOCHIM CONSTITUANTS ALIMENTS LAB, F-13108 ST PAUL LES DURANCE, FRANCE. RP DESROSIERS, MF (reprint author), NATL INST STAND & TECHNOL, CTR RADIAT RES, GAITHERSBURG, MD 20899 USA. NR 20 TC 41 Z9 41 U1 1 U2 1 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0950-5423 J9 INT J FOOD SCI TECH JI Int. J. Food Sci. Technol. PD DEC PY 1990 VL 25 IS 6 BP 682 EP 691 PG 10 WC Food Science & Technology SC Food Science & Technology GA EP065 UT WOS:A1990EP06500007 ER PT J AU CHAI, H AF CHAI, H TI 3-DIMENSIONAL FRACTURE-ANALYSIS OF THIN-FILM DEBONDING SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article ID DELAMINATION; GROWTH; PLATES; MECHANICS; FAILURE AB A simplified mixed-mode fracture analysis combining nonlinear thin-plate stress solutions with crack-tip elasticity results has been developed to account for local variations of G(I), G(II) and G(III) in thin-film debound problems associated with large film deformations. Membrane and bending stresses from the plate analysis are matched with the crack-tip singularity solution over a small boundary region at the crack tip where the effect of geometric nonlinearity is small. Local variations in each of the individual components of the energy release rate are directly related to the "jump" in these stresses across the crack border. Specific results are presented for 1-D and elliptical planeform cracks. Deformations were induced either by a pressure acting normal to the film surface or biaxial compression or tension stresses applied to the substrate in which the loading axes and debond axes coincide. The latter type of loading involves buckling of the delaminated film. The model predictions compare well with more rigorous solutions provided the film thickness is small compared to the debond dimensions. In all cases analyzed, G(III) was negligible. The ratio G(I)/G(II) typically decreases with increasing load or film deformation, the rate was moderate for pressure loading while generally sharp for compression loading. Film-substrate overlap may occur for certain debond geometry and loading conditions. Prevention of this by the substrate may critically increase the energy available for crack propagation. RP CHAI, H (reprint author), NIST,INST MAT SCI & ENGN,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. NR 27 TC 47 Z9 49 U1 1 U2 6 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0376-9429 J9 INT J FRACTURE JI Int. J. Fract. PD DEC PY 1990 VL 46 IS 4 BP 237 EP 256 DI 10.1007/BF00037155 PG 20 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA EQ921 UT WOS:A1990EQ92100001 ER PT J AU WANG, JCM GARY, JM IYER, HK AF WANG, JCM GARY, JM IYER, HK TI A TECHNIQUE TO EVALUATE BENCHMARKS - A CASE-STUDY USING THE LIVERMORE LOOPS SO INTERNATIONAL JOURNAL OF SUPERCOMPUTER APPLICATIONS AND HIGH PERFORMANCE COMPUTING LA English DT Article AB This paper is devoted to an analysis of the data from the Livermore kernels benchmark. We will show that in the sense of least squares prediction the dimension of these data is rather small; a reduction of the data to dimension four has about the same predictive power as the original data. Two techniques are used that reduce the 72 kernel timings for each machine to a few scores by which the machine is characterized. The first is based on a principal component analysis, the second on a cluster analysis of the kernel. The validity of the reduction to lower dimension is checked by various means. The possible use of the Livermore data to predict the running time of larger codes is demonstrated. C1 COLORADO STATE UNIV,FT COLLINS,CO 80523. RP WANG, JCM (reprint author), NATL INST STAND & TECHNOL,BOULDER,CO, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU SAGE SCIENCE PRESS PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 SN 1078-3482 J9 INT J SUPERCOMPUT AP JI Int. J. Supercomput. Appl. High Perform. Comput. PD WIN PY 1990 VL 4 IS 4 BP 40 EP 55 DI 10.1177/109434209000400404 PG 16 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications SC Computer Science GA EP060 UT WOS:A1990EP06000004 ER PT J AU LONG, GG KRUEGER, S JEMIAN, PR BLACK, DR BURDETTE, HE CLINE, JP GERHARDT, RA AF LONG, GG KRUEGER, S JEMIAN, PR BLACK, DR BURDETTE, HE CLINE, JP GERHARDT, RA TI SMALL-ANGLE-SCATTERING DETERMINATION OF THE MICROSTRUCTURE OF POROUS SILICA PRECURSOR BODIES SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID PARTICLE-SIZE DISTRIBUTIONS AB Small-angle X-ray and small-angle neutron scattering measurements were carried out on a series of porous silica precursor (unsintered) bodies with different starting chemistries. The samples were prepared from mixtures containing 10 to 30 wt% colloidal silica sol and 90 to 70 wt% potassium silicate. Particle-size distributions were derived from the data using a maximum-entropy technique. Scattering data from the porous silica samples are especially suitable for such an analysis because the colloidal particles and clusters and aggregates of these particles are verified in detail to be spherical, and the scattering instrument use for this study covered the entire range of size in this material and was very well calibrate. It was found that the lower the amount of colloidal silica, the broader the size distribution of the silica aggregates. C1 NORTHWESTERN UNIV,INST TECHNOL,EVANSTON,IL 60208. RUTEEKS STATE UNIV,CTR CERAM RES,PISCATAWAY,NJ 08855. RP LONG, GG (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. RI Gerhardt, Rosario/D-6573-2012 OI Gerhardt, Rosario/0000-0001-8774-0842 NR 19 TC 24 Z9 24 U1 0 U2 1 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD DEC 1 PY 1990 VL 23 BP 535 EP 544 DI 10.1107/S0021889890008263 PN 6 PG 10 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA EN808 UT WOS:A1990EN80800013 ER PT J AU BURNS, TJ AF BURNS, TJ TI A MECHANISM FOR SHEAR BAND FORMATION IN THE HIGH STRAIN-RATE TORSION TEST SO JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME LA English DT Article ID PLASTIC-DEFORMATION; STEEL AB A numerical study of a one-dimensional model of the high strain-rate torsion test shows that a moving boundary of rigid unloading, starting from the ends of the thin-walled tubular specimen, is a plausible mechanism for adiabatic shear band formation during the test. Even though the dimensionless thermal diffusivity parameter is very small, the moving boundary is due to heat transfer from the specimen through its ends, which are assumed to be isothermal heat sinks. The mathematical model is based on a physical model of thermoelastic-plastic flow and a phenomenological Arrhenius model for the plastic flow surface. The numerical technique used is the semi-discretization method of lines. RP NATL INST STAND & TECHNOL, CTR COMP & APPL MATH, GAITHERSBURG, MD 20899 USA. NR 33 TC 15 Z9 15 U1 0 U2 6 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0021-8936 EI 1528-9036 J9 J APPL MECH-T ASME JI J. Appl. Mech.-Trans. ASME PD DEC PY 1990 VL 57 IS 4 BP 836 EP 844 DI 10.1115/1.2897649 PG 9 WC Mechanics SC Mechanics GA ER423 UT WOS:A1990ER42300006 ER PT J AU CHAI, H AF CHAI, H TI BUCKLING AND POSTBUCKLING BEHAVIOR OF ELLIPTIC PLATES .1. ANALYSIS SO JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 1990 WINTER ANNUAL MEETING OF THE AMERICAN SOC OF MECHANICAL ENGINEERS CY NOV 25-30, 1990 CL DALLAS, TX SP AMER SOC MECH ENGINEERS, DIV APPL MECH ID DELAMINATION; GROWTH AB A polynomial series expansion for displacements is used in conjunction with the Rayleigh-Ritz energy method to produce buckling and post-buckling stress solutions for an elliptically-shaped surface layer that has been delaminated from the main load-bearing body. Plate deformations are induced by a combined in-plane displacement field applied to the plate boundary and normal pressure. Convergence of the plate solution is assessed by systematically increasing the number of displacement terms in the series expansion. The convergence of membrane and bending stresses at the plate boundary was generally slow and nonuniform. The degrees-of-freedom necessary for a satisfactory solution typically increase with increasing complexity or magnitude of the plate deformations. By employing as many as 77 displacement terms, practically exact stress solutions are obtained for a wide variety of basic delamination plate problems. The proposed solution procedure is highly efficient and economical, and it may be easily extended to other plate geometries or loading conditions. RP CHAI, H (reprint author), NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. NR 18 TC 17 Z9 24 U1 0 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0021-8936 J9 J APPL MECH-T ASME JI J. Appl. Mech.-Trans. ASME PD DEC PY 1990 VL 57 IS 4 BP 981 EP 988 DI 10.1115/1.2897671 PG 8 WC Mechanics SC Mechanics GA ER423 UT WOS:A1990ER42300028 ER PT J AU CHAI, H AF CHAI, H TI BUCKLING AND POSTBUCKLING BEHAVIOR OF ELLIPTIC PLATES .2. RESULTS SO JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 1990 WINTER ANNUAL MEETING OF THE AMERICAN SOC OF MECHANICAL ENGINEERS CY NOV 25-30, 1990 CL DALLAS, TX SP AMER SOC MECH ENGINEERS, DIV APPL MECH AB The large-deflection plate solution developed in Part I is used here to study the buckling and post-buckling deformation and stress characteristics of an elliptically-shaped surface layer that has been delaminated from a large material body. The economical, yet accurate nature of this solution, together with available graphic routines, has made it possible to present, figuratively, a comprehensive description of the plate behavior. The conditions for a layer-substrate overlap and the variations of membrane and bending stresses along the plate boundary are emphasized. Deformations were induced either by a normal pressure or a biaxial displacement field applied to the plate boundary. The problem variables are plate size and shape, details of load biaxiality, and load level. RP CHAI, H (reprint author), NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,DIV POLYMERS,GAITHERSBURG,MD 20899, USA. NR 7 TC 17 Z9 19 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0021-8936 J9 J APPL MECH-T ASME JI J. Appl. Mech.-Trans. ASME PD DEC PY 1990 VL 57 IS 4 BP 989 EP 994 DI 10.1115/1.2897672 PG 6 WC Mechanics SC Mechanics GA ER423 UT WOS:A1990ER42300029 ER PT J AU RUFFIEUX, D WOLFE, DE RUSSELL, C AF RUFFIEUX, D WOLFE, DE RUSSELL, C TI THE EFFECT OF BUILDING SHADOWS ON THE VERTICAL TEMPERATURE STRUCTURE OF THE LOWER ATMOSPHERE IN DOWNTOWN DENVER SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID MODELS AB Denver's Continuous Air Monitoring Program (CAMP) site, typically recording the highest carbon monoxide levels in the metropolitan area, lies within a large region of downtown Denver shadowed by tall buildings. Two studies conducted during the winters of 1987/88 and 1988/89 indicated several possible scenarios leading to the high-pollution episodes often reported at CAMP. Sodar records and stability calculations at CAMP indicate that building shadows may be a contributing factor. The building shadowing was simulated by a computer model and its effects were examined from 2 days of detailed vertical temperature profiles taken in the vicinity of CAMP. The vertical temperature structure was mapped both spatially and temporally as it pertains to the shadowed and unshadowed regions. Results show that shadowing at CAMP is quickly followed by the formation of a shadow surface-based inversion and a local rise in carbon monoxide concentrations. Strength of the inversion depends on the meteorology and surface albedo and relates to a difference in solar radiation intensity of > 100 W m-2 between shadowed and unshadowed regions. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP RUFFIEUX, D (reprint author), NOAA,ENVIRONM RES LAB,WAVE PROPAGAT LAB,R-E-WP7,325 BROADWAY,BOULDER,CO 80303, USA. NR 17 TC 4 Z9 4 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD DEC PY 1990 VL 29 IS 12 BP 1221 EP 1231 DI 10.1175/1520-0450(1990)029<1221:TEOBSO>2.0.CO;2 PG 11 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA960 UT WOS:A1990FA96000003 ER PT J AU HILLGER, DW PURDOM, JFW AF HILLGER, DW PURDOM, JFW TI CLUSTERING OF SATELLITE SOUNDING RADIANCES TO ENHANCE MESOSCALE METEOROLOGICAL RETRIEVALS SO JOURNAL OF APPLIED METEOROLOGY LA English DT Note ID CLASSIFICATION AB Clustering is used to enhance mesoscale meteorological detail in retrievals produced from satellite sounding measurements. By placing sounding fields-of-view (FOVs) into groups of similar measurements, mesoscale details are reinforced, compared to arbitrary grouping of FOVs into a fixed block size. Clustering takes advantage of similarity among the measurements to avoid smearing gradient information. A case study is presented showing the advantage of clustering as applied to the satellite sounding problem. RP HILLGER, DW (reprint author), COLORADO STATE UNIV,COOPERAT INST RES ATMOSPHERE,NOAA,FT COLLINS,CO 80523, USA. RI Hillger, Donald/F-5592-2010 OI Hillger, Donald/0000-0001-7297-2640 NR 18 TC 5 Z9 5 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD DEC PY 1990 VL 29 IS 12 BP 1344 EP 1351 DI 10.1175/1520-0450(1990)029<1344:COSSRT>2.0.CO;2 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA960 UT WOS:A1990FA96000012 ER PT J AU GROSSMAN, EN MCDONALD, DG SAUVAGEAU, JE AF GROSSMAN, EN MCDONALD, DG SAUVAGEAU, JE TI 2-DIMENSIONAL ANALYSIS OF MICROBOLOMETER ARRAYS SO JOURNAL OF APPLIED PHYSICS LA English DT Article RP GROSSMAN, EN (reprint author), NATL INST STAND & TECHNOL,CRYOELECTR METROL GRP,BOULDER,CO 80303, USA. NR 18 TC 7 Z9 7 U1 1 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD DEC 1 PY 1990 VL 68 IS 11 BP 5409 EP 5414 DI 10.1063/1.346996 PG 6 WC Physics, Applied SC Physics GA EM120 UT WOS:A1990EM12000001 ER PT J AU TAKAGI, T CHIANG, YM ROSHKO, A AF TAKAGI, T CHIANG, YM ROSHKO, A TI ORIGIN OF GRAIN-BOUNDARY WEAK LINKS IN BAPB1-XBIXO3 SUPERCONDUCTOR SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 NATL INST STAND & TECHNOL,SUPERCONDUCTOR & MAGNET MEASUREMENTS GRP,BOULDER,CO 80303. DENKI KAGAKU KOGYO KABUSHIKI KAISHA,TOKYO,JAPAN. RP TAKAGI, T (reprint author), MIT,DEPT MAT SCI & ENGN,CAMBRIDGE,MA 02139, USA. NR 46 TC 6 Z9 6 U1 2 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD DEC 1 PY 1990 VL 68 IS 11 BP 5750 EP 5758 DI 10.1063/1.346943 PG 9 WC Physics, Applied SC Physics GA EM120 UT WOS:A1990EM12000056 ER PT J AU JACOX, ME THOMPSON, WE AF JACOX, ME THOMPSON, WE TI THE VIBRATIONAL-SPECTRA OF MOLECULAR-IONS ISOLATED IN SOLID NEON .4. NO+, NO-, ONNO+, AND ONNO- SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 NATL SCI FDN,WASHINGTON,DC 20550. RP JACOX, ME (reprint author), NATL INST STAND & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899, USA. NR 69 TC 59 Z9 59 U1 1 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 1 PY 1990 VL 93 IS 11 BP 7609 EP 7622 DI 10.1063/1.459392 PG 14 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL294 UT WOS:A1990EL29400007 ER PT J AU JACOX, ME AF JACOX, ME TI THE VIBRATIONAL-SPECTRA OF MOLECULAR-IONS ISOLATED IN SOLID NEON .5. N2O+ AND NNO2- SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article RP JACOX, ME (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 47 TC 26 Z9 27 U1 1 U2 6 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 1 PY 1990 VL 93 IS 11 BP 7622 EP 7631 DI 10.1063/1.459393 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL294 UT WOS:A1990EL29400008 ER PT J AU NESBITT, DJ LOVEJOY, CM AF NESBITT, DJ LOVEJOY, CM TI MULTIPLE INTERMOLECULAR BEND VIBRATIONAL-EXCITATION OF A HYDROGEN-BOND - AN EXTENDED INFRARED STUDY OF OCOHF SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO, BOULDER, CO 80309 USA. NATL INST STAND & TECHNOL, JOINT INST LAB ASTROPHYS, BOULDER, CO 80309 USA. NR 61 TC 39 Z9 39 U1 0 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 1 PY 1990 VL 93 IS 11 BP 7716 EP 7730 DI 10.1063/1.459351 PG 15 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL294 UT WOS:A1990EL29400018 ER PT J AU SIECK, LW AUSLOOS, PJ AF SIECK, LW AUSLOOS, PJ TI THE IONIZATION-ENERGY OF SF5 AND THE SF5-F BOND-DISSOCIATION ENERGY SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article RP SIECK, LW (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. NR 15 TC 20 Z9 20 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD DEC 1 PY 1990 VL 93 IS 11 BP 8374 EP 8378 DI 10.1063/1.459320 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL294 UT WOS:A1990EL29400094 ER PT J AU DUTTON, EG AF DUTTON, EG TI ANNUAL FORCING OF THE SURFACE RADIATION BALANCE DIURNAL CYCLE MEASURED FROM A HIGH TOWER NEAR BOULDER, COLORADO SO JOURNAL OF CLIMATE LA English DT Article AB The radiation balance consisting of upward and downward components of solar and thermal infrared broadband irradiances is continuously measured from the top of a 300-m tower situated on the Colorado high plains. The data are representative of a weighted areal average over a variety of surface and vegetation types within about a 1.5-km radius of the tower. Data from a three-year period, 1986-88, appears to be sufficient to define smooth annual cycles in monthly averages and 1-h resolution diurnal cycles in seasonal averages. It is found that even though infrared cycles are out of phase with cycles of corresponding solar components, the overall net radiation balance is in phase with surface solar forcing. The latter follows closely the extraterrestrial forcing but with some phase modifications by clouds and surface reflectance variations. The value of the correlation coefficient squared between the extraterrestrial radiation and the measured surface radiation balance quickly increases from 0.89-0.99 as averaging time increases from 1-90 days, respectively. RP DUTTON, EG (reprint author), NOAA,ENVIRONM RES LABS,ARL,GMCC,R-E-CG1,325 BROADWAY,BOULDER,CO 80303, USA. NR 0 TC 7 Z9 9 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD DEC PY 1990 VL 3 IS 12 BP 1400 EP 1408 DI 10.1175/1520-0442(1990)003<1400:AFOTSR>2.0.CO;2 PG 9 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC724 UT WOS:A1990FC72400008 ER PT J AU MAHONEY, JB OLSEN, P COHN, M AF MAHONEY, JB OLSEN, P COHN, M TI BLOOMS OF A DINOFLAGELLATE GYRODINIUM CF AUREOLUM IN NEW-JERSEY COASTAL WATERS AND THEIR OCCURRENCE AND EFFECTS WORLDWIDE SO JOURNAL OF COASTAL RESEARCH LA English DT Article RP MAHONEY, JB (reprint author), NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,SANDY HOOK LAB,HIGHLANDS,NJ 07732, USA. NR 0 TC 15 Z9 15 U1 0 U2 0 PU COASTAL EDUCATION & RESEARCH FOUNDATION PI LAWRENCE PA 810 EAST 10TH STREET, LAWRENCE, KS 66044 SN 0749-0208 J9 J COASTAL RES JI J. Coast. Res. PD WIN PY 1990 VL 6 IS 1 BP 121 EP 135 PG 15 WC Environmental Sciences; Geography, Physical; Geosciences, Multidisciplinary SC Environmental Sciences & Ecology; Physical Geography; Geology GA CL450 UT WOS:A1990CL45000010 ER PT J AU FUKASE, Y EANES, ED TAKAGI, S CHOW, LC BROWN, WE AF FUKASE, Y EANES, ED TAKAGI, S CHOW, LC BROWN, WE TI SETTING REACTIONS AND COMPRESSIVE STRENGTHS OF CALCIUM-PHOSPHATE CEMENTS SO JOURNAL OF DENTAL RESEARCH LA English DT Article C1 NATL INST STANDARDS & TECHNOL,AMER DENT ASSOC HLTH FDN,PAFFENBARGER RES CTR,GAITHERSBURG,MD 20899. NIDR,BETHESDA,MD 20892. FU NIDCR NIH HHS [DE05030] NR 14 TC 208 Z9 217 U1 4 U2 37 PU AMER ASSOC DENTAL RESEARCH PI ALEXANDRIA PA 1619 DUKE ST, ALEXANDRIA, VA 22314 SN 0022-0345 J9 J DENT RES JI J. Dent. Res. PD DEC PY 1990 VL 69 IS 12 BP 1852 EP 1856 DI 10.1177/00220345900690121201 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA EN816 UT WOS:A1990EN81600012 PM 2250090 ER PT J AU BECKERLE, JD CASASSA, MP HEILWEIL, EJ CAVANAGH, RR STEPHENSON, JC AF BECKERLE, JD CASASSA, MP HEILWEIL, EJ CAVANAGH, RR STEPHENSON, JC TI PICOSECOND IR STUDIES OF THE VIBRATIONAL DYNAMICS OF CO/PT(111) SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article; Proceedings Paper CT 6TH INTERNATIONAL CONF ON VIBRATIONS AT SURFACES 1990 CY SEP 10-14, 1990 CL SHELTER ISLAND, NY SP NICOLET INSTRUMENT, IBM, COHERENT, PERKIN ELMER, US DOE, AMER CHEM SOC, PETR RES FUND, AMER VACUUM SOC, NIST, EXXON ID METAL-SURFACE; RELAXATION AB The vibrational dynamics of chemisorbed CO on Pt(111) are investigated by picosecond IR transient saturation spectroscopy. An intense ps pump pulse excites the CO stretch vibration for CO/Pt(111) and the transient differential IR spectrum of the vibrationally excited adlayer is monitored with a second IR probe pulse. The transient spectrum exhibits a dispersive bandshape, with both bleach and absorption features. The transient spectrum appears prior to the pump pulse and decays within a few ps following the pump pulse. The results are interpreted by comparison with analogous measurements on metal carbonyl molecules, and model calculations including the effects of optical coherence. RP BECKERLE, JD (reprint author), NIST,CTR ATOM MOLEC & OPT PHYS,GAITHERSBURG,MD 20899, USA. NR 18 TC 19 Z9 19 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD DEC PY 1990 VL 54 BP 17 EP 26 DI 10.1016/0368-2048(90)80197-I PG 10 WC Spectroscopy SC Spectroscopy GA ET210 UT WOS:A1990ET21000004 ER PT J AU RICHTER, LJ BUNTIN, SA KING, DS CAVANAGH, RR AF RICHTER, LJ BUNTIN, SA KING, DS CAVANAGH, RR TI LASER-INDUCED DESORPTION OF NO FROM SI(111) - EFFECTS OF COVERAGE ON NO VIBRATIONAL POPULATIONS SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article; Proceedings Paper CT 6TH INTERNATIONAL CONF ON VIBRATIONS AT SURFACES 1990 CY SEP 10-14, 1990 CL SHELTER ISLAND, NY SP NICOLET INSTRUMENT, IBM, COHERENT, PERKIN ELMER, US DOE, AMER CHEM SOC, PETR RES FUND, AMER VACUUM SOC, NIST, EXXON ID DRIVEN SURFACE-REACTIONS; DISTRIBUTIONS; PHOTOEMISSION; PT(111) AB Laser-induced desorption of NO from Si(111) has been investigated using state-specific detection techniques. The observed energy partitioning in the desorbed NO varies significantly with the NO coverage. Characterization of the energy partitioning with desorption-laser wavelengths in the range 355-1907 nm indicates that different substrate electronic excitations are responsible for the desorption at low NO coverage vs saturation coverage. The relationship between the substrate electronic excitation and observed vibrational-state-population distributions is explored. RP RICHTER, LJ (reprint author), NATL INST STAND & TECHNOL,CTR ATOM MOLEC & OPT PHYS,GAITHERSBURG,MD 20899, USA. RI Richter, Lee/N-7730-2016 OI Richter, Lee/0000-0002-9433-3724 NR 27 TC 21 Z9 21 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD DEC PY 1990 VL 54 BP 181 EP 190 DI 10.1016/0368-2048(90)80210-2 PG 10 WC Spectroscopy SC Spectroscopy GA ET210 UT WOS:A1990ET21000017 ER PT J AU GADZUK, JW AF GADZUK, JW TI RESONANT TUNNELING WITH ELECTRON-PHONON INTERACTIONS - AN EXACTLY SOLVABLE MODEL APPLIED TO DESORPTION SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article; Proceedings Paper CT 6TH INTERNATIONAL CONF ON VIBRATIONS AT SURFACES 1990 CY SEP 10-14, 1990 CL SHELTER ISLAND, NY SP NICOLET INSTRUMENT, IBM, COHERENT, PERKIN ELMER, US DOE, AMER CHEM SOC, PETR RES FUND, AMER VACUUM SOC, NIST, EXXON ID STIMULATED DESORPTION; MOLECULE SCATTERING; DIATOMIC-MOLECULES; SURFACES; PHOTOEMISSION; DISSOCIATION; TRANSITIONS; MECHANISM; DYNAMICS; VALENCE AB The problem of hot electron and/or laser induced desorption of atoms or molecules on surfaces is considered. The equivalence between a previous wavepacket model for this process and the problem of inelastic resonant electron tunneling through a quantum well with electron-phonon coupling is established. Numerical consequences of some exactly solved quantum well models are explored as they relate to desorption. RP GADZUK, JW (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 40 TC 5 Z9 5 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD DEC PY 1990 VL 54 BP 201 EP 210 DI 10.1016/0368-2048(90)80212-S PG 10 WC Spectroscopy SC Spectroscopy GA ET210 UT WOS:A1990ET21000019 ER PT J AU BECKMAN, BR ZAUGG, WS AF BECKMAN, BR ZAUGG, WS TI EFFECT OF ACTINOMYCIN-D ON GILL NA+-K+ ATPASE OF JUVENILE CHINOOK SALMON, ONCORHYNCHUS-TSHAWYTSCHA (WALBAUM) SO JOURNAL OF FISH BIOLOGY LA English DT Article RP BECKMAN, BR (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,DIV COASTAL ZONE & ESTUARINE STUDIES,SEATTLE,WA 98112, USA. NR 16 TC 2 Z9 2 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-1112 J9 J FISH BIOL JI J. Fish Biol. PD DEC PY 1990 VL 37 IS 6 BP 907 EP 911 DI 10.1111/j.1095-8649.1990.tb03594.x PG 5 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA EM578 UT WOS:A1990EM57800008 ER PT J AU DANOS, M AF DANOS, M TI COULOMB-ASSISTED COLD FUSION SO JOURNAL OF FUSION ENERGY LA English DT Article AB When taking into account the energy-momentum exchange with a catalyzing lattice nucleus, the Coulomb barrier penetrability for the fusing nuclei becomes of order unity. RP DANOS, M (reprint author), NATL INST STAND & TECHNOL,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0164-0313 J9 J FUSION ENERG JI J. Fusion Energy PD DEC PY 1990 VL 9 IS 4 BP 413 EP 416 DI 10.1007/BF01588271 PG 4 WC Nuclear Science & Technology SC Nuclear Science & Technology GA GA113 UT WOS:A1990GA11300008 ER PT J AU CORONITI, FV GREENSTADT, EW TSURUTANI, BT SMITH, EJ ZWICKL, RD GOSLING, JT AF CORONITI, FV GREENSTADT, EW TSURUTANI, BT SMITH, EJ ZWICKL, RD GOSLING, JT TI PLASMA-WAVES IN THE DISTANT GEOMAGNETIC TAIL - ISEE-3 SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NOAA,BOULDER,CO 80303. CALTECH,JET PROP LAB,PASADENA,CA 91109. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. RP CORONITI, FV (reprint author), TRW SEMICOND,SPACE & TECHNOL GRP,LAWNDALE,CA 90260, USA. NR 26 TC 11 Z9 11 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20977 EP 20995 DI 10.1029/JA095iA12p20977 PG 19 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000029 ER PT J AU DEETER, MN ROSE, AH DAY, GW AF DEETER, MN ROSE, AH DAY, GW TI FAST, SENSITIVE MAGNETIC-FIELD SENSORS BASED ON THE FARADAY-EFFECT IN YIG SO JOURNAL OF LIGHTWAVE TECHNOLOGY LA English DT Article ID IRON-GARNET AB We characterize magnetic-field sensors based on the Faraday effect in ferrimagnetic iron garnets in terms of their sensitivity, speed, and directionality. Signal-to-noise measurements at 80 Hz on small (typically 5 mm diameter x 3 mm long) samples of yttrium iron garnet (YIG) yield noise equivalent magnetic fields of 10 nT/square-root Hz. Frequency response measurements exhibit virtually flat response to approximately 700 MHz. RP DEETER, MN (reprint author), NATL INST STANDARDS & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303, USA. RI Deeter, Merritt/O-6078-2016 OI Deeter, Merritt/0000-0002-3555-0518 NR 17 TC 54 Z9 57 U1 1 U2 15 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0733-8724 J9 J LIGHTWAVE TECHNOL JI J. Lightwave Technol. PD DEC PY 1990 VL 8 IS 12 BP 1838 EP 1842 DI 10.1109/50.62880 PG 5 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA EP157 UT WOS:A1990EP15700012 ER PT J AU MAKI, AG OLSON, WB THOMPSON, G AF MAKI, AG OLSON, WB THOMPSON, G TI FTS INFRARED MEASUREMENTS OF THE ROTATIONAL AND VIBRATIONAL-SPECTRUM OF LIH AND LID SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article C1 NATL INST STAND & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899. NR 33 TC 51 Z9 51 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD DEC PY 1990 VL 144 IS 2 BP 257 EP 268 DI 10.1016/0022-2852(90)90213-A PG 12 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EL419 UT WOS:A1990EL41900002 ER PT J AU KIM, JJ PARK, C KIM, DY YOON, DN SHAPIRO, A AF KIM, JJ PARK, C KIM, DY YOON, DN SHAPIRO, A TI DISCONTINUOUS COARSENING OF TETRAGONAL PRECIPITATES IN PARTIALLY-STABILIZED ZIRCONIA INDUCED BY DIFFUSIONAL COHERENCY STRAIN UNDER APPLIED STRESS SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article ID GRAIN-BOUNDARY MIGRATION; LIQUID-FILM; ALLOY AB When partially stabilized zirconia with 6 mol% MgO and 4 mol% CaO is aged at 1450-degrees-C, intragranular precipitation occurs and concurrently the boundaries between the grains migrate, forming a Ca-enriched precipitate-free cubic phase and large tetragonal precipitates behind them. At these compositions and temperature the boundary migration is rapid and shows the characteristics of a discontinuous coarsening. A uniaxial compressive stress applied to this specimen during the aging treatment increases or decreases the migration rate of the boundaries parallel or perpendicular to the stress axis, respectively, in agreement with the prediction that a compressive coherency strain due to the diffusion of Ca atoms is produced at the surface of the retreating grains and drives the migration. The diffusional coherency strain energy is thus expected to be the dominant driving force for the discontinuous coarsening in this solid. C1 SEOUL NATL UNIV, COLL ENGN 400, DEPT INORGAN MAT ENGN, SEOUL 151742, SOUTH KOREA. KOREA INST SCI & TECHNOL, DEPT MAT SCI & ENGN, SEOUL 136791, SOUTH KOREA. NATL INST STANDARDS & TECHNOL, GAITHERSBURG, MD 20899 USA. RI Yoon, Sejin/F-7637-2013 NR 26 TC 6 Z9 6 U1 0 U2 1 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0002-7820 EI 1551-2916 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD DEC PY 1990 VL 73 IS 12 BP 3658 EP 3662 DI 10.1111/j.1151-2916.1990.tb04272.x PG 5 WC Materials Science, Ceramics SC Materials Science GA EP672 UT WOS:A1990EP67200017 ER PT J AU HARMAN, D CANDELA, G AF HARMAN, D CANDELA, G TI RETRIEVING RECORDS FROM A GIGABYTE OF TEXT ON A MINICOMPUTER USING STATISTICAL RANKING SO JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE LA English DT Article RP NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. NR 27 TC 42 Z9 43 U1 0 U2 4 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0002-8231 J9 J AM SOC INFORM SCI JI J. Am. Soc. Inf. Sci. PD DEC PY 1990 VL 41 IS 8 BP 581 EP 589 DI 10.1002/(SICI)1097-4571(199012)41:8<581::AID-ASI4>3.0.CO;2-U PG 9 WC Computer Science, Information Systems; Information Science & Library Science SC Computer Science; Information Science & Library Science GA EJ637 UT WOS:A1990EJ63700004 ER PT J AU DERR, VE STONE, RS FEDOR, LS HANSON, HP AF DERR, VE STONE, RS FEDOR, LS HANSON, HP TI A PARAMETERIZATION FOR THE SHORTWAVE TRANSMISSIVITY OF STRATIFORM WATER CLOUDS BASED ON EMPIRICAL-DATA AND RADIATIVE-TRANSFER THEORY SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID TEMPERATURE; LIQUID; BUDGET; VAPOR AB Surface measurements of solar flux and total integrated liquid-water content, radiosonde data, and infrared satellite images are analyzed in conjunction with radiative transfer calculations to derive an empirical parameterization for the shortwave transmissivity of continental stratiform water clouds. The data were collected near Denver, Colorado, over a period of six years. Seventeen days on which uniform stratiform clouds persisted over the observing site were selected for detailed analysis, and form the basis for deriving the parameterization. A multiple reflection radiative transfer model is employed to estimate stratus cloud transmissivity in terms of the measurable liquid-water path (LWP). A nonlinear fit of estimated transmissivities to the corresponding observations of LWP yields close agreement with a previous, more complicated parameterization. The derived expression for cloud transmissivity is used to predict mean daily surface fluxes for 61 days during which periods of stratiform clouds were observed over the Denver area. A comparison between predicted and measured fluxes shows agreement to within +/-4%, with best agreement for clouds of moderate optical thickness. Potential sources of error are identified with sensitivity studies. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP DERR, VE (reprint author), NOAA,ENVIRONM RES LABS,WAVE PROPAGAT LAB,325 S BROADWAY,RE,BOULDER,CO 80303, USA. NR 22 TC 6 Z9 7 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD DEC 1 PY 1990 VL 47 IS 23 BP 2774 EP 2783 DI 10.1175/1520-0469(1990)047<2774:APFTST>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ809 UT WOS:A1990EQ80900004 ER PT J AU KOPANSKI, JJ ALBERS, J CARVER, GP EHRSTEIN, JR AF KOPANSKI, JJ ALBERS, J CARVER, GP EHRSTEIN, JR TI VERIFICATION OF THE RELATION BETWEEN 2-PROBE AND 4-PROBE RESISTANCES AS MEASURED ON SILICON-WAFERS SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article RP KOPANSKI, JJ (reprint author), NATL INST STAND & TECHNOL,DIV SEMICOND ELECTR,GAITHERSBURG,MD 20899, USA. NR 11 TC 11 Z9 11 U1 0 U2 0 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534 SN 0013-4651 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PD DEC PY 1990 VL 137 IS 12 BP 3935 EP 3941 DI 10.1149/1.2086332 PG 7 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA EL594 UT WOS:A1990EL59400044 ER PT J AU WATERSTRAT, RM KUENTZLER, R MULLER, J AF WATERSTRAT, RM KUENTZLER, R MULLER, J TI STRUCTURAL INSTABILITIES AND SUPERCONDUCTIVITY IN QUASI-BINARY MN5SI3-TYPE COMPOUNDS SO JOURNAL OF THE LESS-COMMON METALS LA English DT Article C1 INST PHYS & CHEM MAT STRASBOURG,ETUD MAT MET GRP,F-67084 STRASBOURG,FRANCE. DEPT PHYS MAT CONDENSEE,CH-1211 GENEVA 4,SWITZERLAND. RP WATERSTRAT, RM (reprint author), NATL INST STAND & TECHNOL,AMER DENT ASSOC,HLTH FDN,PAFFENBARGER RES CTR,GAITHERSBURG,MD 20899, USA. NR 9 TC 5 Z9 5 U1 2 U2 5 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0022-5088 J9 J LESS-COMMON MET PD DEC PY 1990 VL 167 IS 1 BP 169 EP 178 DI 10.1016/0022-5088(90)90302-Z PG 10 WC Chemistry, Physical; Metallurgy & Metallurgical Engineering SC Chemistry; Metallurgy & Metallurgical Engineering GA EL356 UT WOS:A1990EL35600019 ER PT J AU RYE, BJ AF RYE, BJ TI SPECTRAL CORRELATION OF ATMOSPHERIC LIDAR RETURNS WITH RANGE-DEPENDENT BACKSCATTER SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Article RP RYE, BJ (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,NATL OCEAN & ATMOSPHER ADM,BOULDER,CO 80309, USA. NR 15 TC 25 Z9 25 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD DEC PY 1990 VL 7 IS 12 BP 2199 EP 2207 DI 10.1364/JOSAA.7.002199 PG 9 WC Optics SC Optics GA EM173 UT WOS:A1990EM17300005 ER PT J AU POON, CD SAMULSKI, ET NAKATANI, AI AF POON, CD SAMULSKI, ET NAKATANI, AI TI CHAIN ORIENTATION IN DEFORMED NETWORKS VIA NMR SO MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA LA English DT Article; Proceedings Paper CT 10TH INTERNATIONAL SYMP ON POLYMER NETWORKS / 10TH POLYMER NETWORKS GROUP MEETING ( NETWORKS 90 ) CY MAY 20-25, 1990 CL JERUSALEM, ISRAEL SP INT UNION PURE & APPL CHEM ID DEUTERIUM MAGNETIC-RESONANCE; ORDER; POLYMERS AB We quantitatively simulate the deuterium NMR linshapes that result when labelled poly(dimethyl siloxane)-d6 networks are uniaxially strained. The inferred microscopic reorientational processes that the chain segments exercise in (deformed) networks are indicative of dynamic heterogeneity wherein different parts of the network average the residual quadrupolar interaction to different degrees. The higher the molecular weight between crosslinks, the larger the fraction of slow reorienting species suggesting that chain disinterpersion may be the rate-limiting contribution to segmental motion in long chains. Our depiction of the network at ambient temperature is that of a liquid wherein motionally distinct segmental domains are characterized by different rotational correlation times. However, under uniaxial extention the fluid network is similar to an anisotropic liquid having macroscopically homogeneous (nematic-like) segmental orientational order that is characterized by a single order parameter. Order parameters extracted from the NMR simulation are discussed in terms of classical descriptions of how macroscopic strain induces microscopic orientational order in Gaussian networks. C1 UNIV N CAROLINA,DEPT CHEM,CHAPEL HILL,NC 27599. NATL INST STAND & TECHNOL,DIV POLYMER,GAITHERSBURG,MD 20899. NR 21 TC 10 Z9 10 U1 0 U2 1 PU HUTHIG & WEPF VERLAG PI BASEL PA AUF DEM WOLF 4 FX#001-41-61-317-94-11, CH-4052 BASEL, SWITZERLAND SN 0258-0322 J9 MAKROMOL CHEM-M SYMP PD DEC PY 1990 VL 40 BP 109 EP 120 DI 10.1002/masy.19900400112 PG 12 WC Polymer Science SC Polymer Science GA EX448 UT WOS:A1990EX44800011 ER PT J AU HETTLER, WF CHESTER, AJ AF HETTLER, WF CHESTER, AJ TI TEMPORAL DISTRIBUTION OF ICHTHYOPLANKTON NEAR BEAUFORT INLET, NORTH-CAROLINA SO MARINE ECOLOGY PROGRESS SERIES LA English DT Article RP HETTLER, WF (reprint author), NOAA, NATL MARINE FISHERIES SERV, SE FISHERIES CTR, BEAUFORT LAB, BEAUFORT, NC 28516 USA. NR 25 TC 39 Z9 40 U1 1 U2 1 PU INTER-RESEARCH PI OLDENDORF LUHE PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY SN 0171-8630 J9 MAR ECOL PROG SER JI Mar. Ecol.-Prog. Ser. PD DEC PY 1990 VL 68 IS 1-2 BP 157 EP 168 DI 10.3354/meps068157 PG 12 WC Ecology; Marine & Freshwater Biology; Oceanography SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Oceanography GA EL391 UT WOS:A1990EL39100016 ER PT J AU BONWICK, GA VAS, P FIELDEN, PR GORDON, JDM AF BONWICK, GA VAS, P FIELDEN, PR GORDON, JDM TI METALLOTHIONEIN-LIKE PROTEINS IN THE LIVERS OF SQUALOID AND CARCHARHINID SHARKS SO MARINE POLLUTION BULLETIN LA English DT Article ID TRACE-METAL CONCENTRATIONS; CADMIUM-BINDING PROTEIN; DOGFISH METALLOTHIONEIN; RAT METALLOTHIONEIN; ROCKALL TROUGH; FISH; ZINC; METABOLISM; TOXICITY; ATLANTIC AB Liver extracts from three species of shark (Etmopterus spinax, Galeorhinus galeus, Scymnorhinus licha), were analysed using Differential Pulse Polarography. All three extracts gave significant polarographic responses, indicating the presence of cysteine containing proteins. On the basis of previous work, these proteins were considered to be metallothionein-like in nature. These results mark the first data on MT in natural populations of sharks and in mid- to deep-water species. C1 NOAA, NATL MARINE FISHERIES SERV, SE FISHERIES CTR, MIAMI LAB, MIAMI, FL 33149 USA. UNIV MANCHESTER, INST SCI & TECHNOL, DEPT INSTRUMENTAT & ANALYT SCI, MANCHESTER M60 1QD, LANCS, ENGLAND. UNIV SALFORD, DEPT BIOL SCI, SALFORD M5 4WT, LANCS, ENGLAND. SCOTTISH MARINE BIOL ASSOC, DUNSTAFFNAGE MARINE RES LAB, OBAN PA34 4AD, ARGYLL, SCOTLAND. NR 32 TC 11 Z9 11 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0025-326X EI 1879-3363 J9 MAR POLLUT BULL JI Mar. Pollut. Bull. PD DEC PY 1990 VL 21 IS 12 BP 567 EP 570 DI 10.1016/0025-326X(90)90604-7 PG 4 WC Environmental Sciences; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA ET803 UT WOS:A1990ET80300003 ER PT J AU EHLER, CN AF EHLER, CN TI NOAA VIEWPOINTS ON MANAGEMENT AND LEGISLATIVE IMPLICATIONS OF RECENT OIL-SPILLS SO MARINE TECHNOLOGY SOCIETY JOURNAL LA English DT Article AB Within the National Oceanic and Atmospheric Administration (NOAA), the Office of Oceanography and Marine Assessment has operational responsibility for oil spill response and natural resource damage assessment activities. Based on those responsibilities, and especially experiences over the past year in dealing with the Exxon Valdez oil spill in Prince William Sound and South Central Alaska coastal waters, this paper recommends management actions to improve public decision making following oil spills. RP EHLER, CN (reprint author), NOAA,NATL OCEAN SERV,OFF OCEANOG & MARINE ASSESSMENT,ROCKVILLE,MD 20852, USA. NR 2 TC 0 Z9 0 U1 1 U2 2 PU MARINE TECHNOLOGY SOC INC PI WASHINGTON PA 1828 L ST NW 9TH FLOOR, WASHINGTON, DC 20036 SN 0025-3324 J9 MAR TECHNOL SOC J JI Mar. Technol. Soc. J. PD DEC PY 1990 VL 24 IS 4 BP 23 EP 26 PG 4 WC Engineering, Ocean; Oceanography SC Engineering; Oceanography GA EU023 UT WOS:A1990EU02300005 ER PT J AU HARTMANN, M TROTTER, LE AF HARTMANN, M TROTTER, LE TI A TOPOLOGICAL CHARACTERIZATION FOR CLOSED-SETS UNDER POLAR DUALITY IN QN SO MATHEMATICAL PROGRAMMING LA English DT Note DE LINEAR DUALITY; POLAR DUALITY; CLOSED SETS AB A topological characterization is given for closed sets in Q(n) under the restriction of (cone) polar duality to Q(n). C1 NIST,DIV BLDG MAT,GAITHERSBURG,MD 20899. CORNELL UNIV,SCH OPERAT RES & IND ENGN,ITHACA,NY 14853. RP HARTMANN, M (reprint author), JOHNS HOPKINS UNIV,DEPT MATH SCI,BALTIMORE,MD 21218, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0025-5610 J9 MATH PROGRAM JI Math. Program. PD DEC PY 1990 VL 49 IS 2 BP 281 EP 283 DI 10.1007/BF01588793 PG 3 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA EQ566 UT WOS:A1990EQ56600009 ER PT J AU TRIER, SB PARSONS, DB MATEJKA, TJ AF TRIER, SB PARSONS, DB MATEJKA, TJ TI OBSERVATIONS OF A SUBTROPICAL COLD-FRONT IN A REGION OF COMPLEX TERRAIN SO MONTHLY WEATHER REVIEW LA English DT Article ID DOPPLER RADAR; SQUALL-LINE; MESOSCALE; AUSTRALIA; ENVIRONMENT; RAINBAND; TAIWAN; SEASON AB The passage of shallow cold fronts during the late spring and early summer months over the island of Taiwan is often accompanied by heavy rainfall and occasional flash flood episodes. Previous studies have emphasized the weak baroclinicity of these fronts and their possible modification by fluxes from the air-sea interface. In this study a cold frontal passage in the vicinity of Taiwan is analyzed using data gathered during the Taiwan Area Mesoscale Experiment (TAMEX) on 8 June 1987. At the northern extent of the TAMEX network the cold front was shallow (1-2 km deep) and moderately baroclinic with 5-degrees-7-degrees-C temperature contrasts at the surface. A Doppler radar cross section of radial velocity reveals a structure similar to that of a density current at the leading edge of the shallow front. The postfrontal air mass was substantially modified by oceanic heat fluxes as it moved southward over the warm ocean waters. This led to a 60%-70% decrease in the temperature contrast across the front between ocean stations at the northern and southern ends of the island, a distance of approximately 400 km. Frontal passages across Taiwan are also influenced by the presence of the Central Mountain Range (CMR), which has an average ridge elevation of approximately 2500 m, and is oriented NNE-SSW along the major axis of the island. In the case described in this paper the CMR, 1) acts as a barrier to both the pre- and postfrontal flows, and 2) is influential by inducing thermally-driven diurnal circulations associated with differential heating of the sloped terrain and the nearby ocean. Terrain influences on the kinematics of the flow in the vicinity of the front are also shown to locally modify the frontal intensity. The inhomogeneous distribution of precipitation attending the frontal passage is related to strong regional variations in thermodynamic stability across the island. These variations in stability are linked to the mesoscale effects of terrain, and to the larger-scale influence of advection of an unstable tropical air mass into the region by a low-level wind maximum. C1 UNIV COLORADO,NOAA,NSSL,MESOSCALE RES DIV,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. RP TRIER, SB (reprint author), NATL CTR ATMOSPHER RES,POB 3000,BOULDER,CO 80307, USA. NR 44 TC 58 Z9 58 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2449 EP 2470 DI 10.1175/1520-0493(1990)118<2449:OOASCF>2.0.CO;2 PG 22 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300001 ER PT J AU MACKLIN, SA BOND, NA WALKER, JP AF MACKLIN, SA BOND, NA WALKER, JP TI STRUCTURE OF A LOW-LEVEL JET OVER LOWER COOK INLET, ALASKA SO MONTHLY WEATHER REVIEW LA English DT Article ID STRAIT; WINDS AB During February 1982 a NOAA research aircraft investigated a cold, low-level jet blowing from a gap between mountain ranges on the west side of Cook Inlet, Alaska. The jet blew 200 km southeastward across Cook Inlet between the Kenai Peninsula and the Kodiak archipelago, passing into the Gulf of Alaska where it merged with the large-scale marine wind field. Measurement commenced approximately 35 km downstream of the seaward end of the gap. The jet's internal boundary layer accelerated by 5% and grew 20% in depth for approximately 50 km; thereafter, wind speed and boundary-layer depth were nearly constant for the next 100 km. The strongest winds (> 20 m s-1 at a height of 80 m) were observed on the south side of the jet's thermal axis and 90 km downstream from the coast. Budget analyses reveal that the down-gradient acceleration within the jet was principally opposed by surface friction, and the cold air advection was balanced by a strong upward-directed sensible heat flux from Cook Inlet and entrainment of warmer air from aloft. C1 UNIV WASHINGTON,NOAA,JOINT INST STUDY ATMOSPHERE & OCEAN,SEATTLE,WA 98195. NOAA,NW OCEAN SERV CTR,SEATTLE,WA 98115. RP MACKLIN, SA (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,7600 SAND POINT WAY NE,BIN C15700,SEATTLE,WA 98115, USA. NR 18 TC 28 Z9 28 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2568 EP 2578 DI 10.1175/1520-0493(1990)118<2568:SOALLJ>2.0.CO;2 PG 11 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300006 ER PT J AU CHEN, TC ALPERT, JC AF CHEN, TC ALPERT, JC TI SYSTEMATIC-ERRORS IN THE ANNUAL AND INTRASEASONAL VARIATIONS OF THE PLANETARY-SCALE DIVERGENT CIRCULATION IN NMC MEDIUM-RANGE FORECASTS SO MONTHLY WEATHER REVIEW LA English DT Article ID DAY OSCILLATION; SUMMER; MODEL; SIMULATION; EVOLUTION; FGGE; FLOW AB The systematic error in the National Meterological Center's (NMC) medium-range operational forecasts of the global divergence during 1987 and 1988 is examined in this study. As in other operational NWP models the NMC model has too weak an annual mean, annual cycle, and 30-60 day oscillation. This weakness shows up after only a few days, especially over the monsoon region and tropical areas. When the intraseasonal oscillation amplitude is large the model predictive skill is improved. The eastward propagation of the low-frequency mode is well predicted throughout the 10-day forecast period. The north-south migration of the tropical Hadley circulation, depicted primarily by the annual-cycle mode, is also weaker although the phase pattern predicted by the MRF is consistent with analyses. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT GEOL & ATMOSPHER SCI,ATMOSPHER SCI PROGRAM,AMES,IA 50011. NOAA,NATL WEATHER SERV,NATL METEOROL CTR,WASHINGTON,DC 20230. NR 28 TC 39 Z9 39 U1 0 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2607 EP 2623 DI 10.1175/1520-0493(1990)118<2607:SEITAA>2.0.CO;2 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300009 ER PT J AU FRANKLIN, JL AF FRANKLIN, JL TI DROPWINDSONDE OBSERVATIONS OF THE ENVIRONMENTAL FLOW OF HURRICANE JOSEPHINE (1984) - RELATIONSHIPS TO VORTEX MOTION SO MONTHLY WEATHER REVIEW LA English DT Article ID TROPICAL CYCLONE MOTION; BAROTROPIC MODEL; DEBBY 1982; PREDICTION; ATLANTIC AB Omega dropwindsonde (ODW) observations from three synoptic-flow experiments in the environment of Hurricane Josephine have been analyzed in a research mode using an objective analysis procedure. The nominal times of the analyses are 0000 UTC 10, 11, and 12 October 1984. The filtered, three-dimensional analyses have been used as a basis for several diagnostic and prognostic calculations relating to the motion of the hurricane. Examination of Josephine's environment revealed a strong variability of the flow with distance from the storm center and with pressure. Josephine moved at right angles to the azimuthally averaged wind at 500 mb; the vortex motion was more consistent with the flow near 700 mb. Forecasts made with a barotropic forecast model showed a high sensitivity of the forcast track to the vertical layer used in the initial analysis. These results demonstrate the potential value of vertical sounding information from the ODWs, and show that single-level midtropospheric information is not always representative of a hurricane's environment flow. On each of the three days, the motion of Josephine deviated significantly from its environmental "steering," as measured by an azimuthal average of the 300-850 mb mean flow over the 5-degrees-7-degrees radial band. This deviation from steering (the so-called "propagation" vector) was oriented with components parallel and to the left of the gradient of absolute vorticity in the asymmetric wind field. The magnitude of the propagation was proportional to the strength of the absolute vorticity gradient. These results are consistent with many barotropic modeling studies. RP NOAA, ERL, AOML, DIV HURRICANE RES, 4301 RICKENBACKER CAUSEWAY, MIAMI, FL 33149 USA. NR 30 TC 25 Z9 26 U1 2 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0027-0644 EI 1520-0493 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2732 EP 2744 DI 10.1175/1520-0493(1990)118<2732:DOOTEF>2.0.CO;2 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300017 ER PT J AU MCCAUL, EW BLANCHARD, DO AF MCCAUL, EW BLANCHARD, DO TI A LOW-PRECIPITATION CUMULONIMBUS ALONG THE DRYLINE IN COLORADO SO MONTHLY WEATHER REVIEW LA English DT Article ID SEVERE THUNDERSTORMS AB An unusual low-precipitation cumulonimbus that developed in northeastern Colorado is photographically documented in some detail. The storm produced at least 12 funnels, mostly at midlevels on the north side of the main updraft. The base of the cloud consisted of a lenticular "bell" that rotated cyclonically, while a couplet of counterrotating storm-scale eddies prevailed aloft. The funnels originated in a region of enhanced shear between easterly low-level flow on the north side of the bell and westerly flow aloft on the north side of a midlevel anticyclonic eddy. C1 NATL CTR ATMOSPHER RES,BOULDER,CO 80307. NOAA,NATL SEVERE STORMS LAB,MESOSCALE RES DIV,BOULDER,CO 80303. NR 4 TC 8 Z9 8 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2768 EP 2773 DI 10.1175/1520-0493(1990)118<2768:ALPCAT>2.0.CO;2 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300020 ER PT J AU GLAHN, HR AF GLAHN, HR TI THE EQUIVALENCY OF THE TANGENT AND SECANT LAMBERT CONFORMAL-MAP PROJECTIONS SO MONTHLY WEATHER REVIEW LA English DT Article AB There is a popular misconception that the secant form of the Lambert conformal map projection is "better" than the tangent form. It is shown here that the two forms are equivalent; they are different only in the sense that the scale of the map quoted is usually true at the two secant latitudes for the secant projections and at the single tangent latitude for the tangent projection. RP GLAHN, HR (reprint author), NOAA,NATL WEATHER SERV,OFF SYST DEV,TECHNIQUES DEV LAB,SILVER SPRING,MD 20910, USA. NR 8 TC 1 Z9 1 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD DEC PY 1990 VL 118 IS 12 BP 2781 EP 2783 DI 10.1175/1520-0493(1990)118<2781:TEOTTA>2.0.CO;2 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EV823 UT WOS:A1990EV82300022 ER PT J AU SCHULTEFROHLINDE, D SIMIC, MG GORNER, H AF SCHULTEFROHLINDE, D SIMIC, MG GORNER, H TI LASER-INDUCED STRAND BREAK FORMATION IN DNA AND POLYNUCLEOTIDES SO PHOTOCHEMISTRY AND PHOTOBIOLOGY LA English DT Review C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. RP SCHULTEFROHLINDE, D (reprint author), MAX PLANCK INST STRAHLENCHEM,W-4330 MULHEIM,GERMANY. NR 134 TC 92 Z9 92 U1 2 U2 4 PU AMER SOC PHOTOBIOLOGY PI AUGUSTA PA BIOTECH PARK, 1021 15TH ST, SUITE 9, AUGUSTA, GA 30901-3158 SN 0031-8655 J9 PHOTOCHEM PHOTOBIOL JI Photochem. Photobiol. PD DEC PY 1990 VL 52 IS 6 BP 1137 EP 1151 DI 10.1111/j.1751-1097.1990.tb08453.x PG 15 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA EL688 UT WOS:A1990EL68800008 PM 2087501 ER PT J AU CAVA, RJ SANTORO, A KRAJEWSKI, JJ FLEMING, RM WASZCZAK, JV PECK, WF MARSH, P AF CAVA, RJ SANTORO, A KRAJEWSKI, JJ FLEMING, RM WASZCZAK, JV PECK, WF MARSH, P TI THE CRYSTAL-STRUCTURE OF THE LA1.6SR0.4CACU2O6+1-DELTA SUPERCONDUCTOR SO PHYSICA C LA English DT Article AB The crystal structure of the La1.6Sr0.4CaCu2O6 +/-delta-superconductor has been determined by neutron diffraction powder profile refinement at room temperature on a slightly oxygen deficient sample (delta = - 0.06, T(c) = 55 K). The crystal structure is very similar to that of the nonsuperconducting host compound La1.9Ca1.1Cu2O6-delta. Sr substitutes on the nine coordinate La sites, and there may be some La/Ca mixing on the eight coordinate metal site between the CuO2 planes. Oxygen deficiency occurs in the apical oxygen sites. The compound has the tetragonal symmetry characteristic of a square CuO2 plane at room temperature and 10 K, making it differ from the single-layer analog (La, Sr)2CuO4 which has a buckled, distorted CuO2 plane in the superconducting state. C1 NIST,GAITHERSBURG,MD. RP CAVA, RJ (reprint author), AT&T BELL LABS,MURRAY HILL,NJ 07974, USA. RI Fleming, Robert/B-1248-2008 NR 10 TC 50 Z9 50 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD DEC 1 PY 1990 VL 172 IS 1-2 BP 138 EP 142 DI 10.1016/0921-4534(90)90652-U PG 5 WC Physics, Applied SC Physics GA EN843 UT WOS:A1990EN84300017 ER PT J AU KAUFMAN, V TRABERT, E HECKMANN, PH MOLLER, G LODWIG, V BLANKE, JH AF KAUFMAN, V TRABERT, E HECKMANN, PH MOLLER, G LODWIG, V BLANKE, JH TI SEARCH FOR INTERCOMBINATION LINES IN FEW-ELECTRON SPECTRA OF RARE-EARTH SEQUENCE IONS OF OS THROUGH AU SO PHYSICA SCRIPTA LA English DT Article C1 HARVARD COLL OBSERV,CAMBRIDGE,MA 02138. RUHR UNIV BOCHUM,W-4630 BOCHUM 1,GERMANY. UNIV KASSEL,FACHBEREICH PHYS,KASSEL,GERMANY. RP KAUFMAN, V (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 35 TC 11 Z9 11 U1 0 U2 0 PU ROYAL SWEDISH ACAD SCIENCES PI STOCKHOLM PA PUBL DEPT BOX 50005, S-104 05 STOCKHOLM, SWEDEN SN 0281-1847 J9 PHYS SCRIPTA JI Phys. Scr. PD DEC PY 1990 VL 42 IS 6 BP 705 EP 713 DI 10.1088/0031-8949/42/6/014 PG 9 WC Physics, Multidisciplinary SC Physics GA EK381 UT WOS:A1990EK38100014 ER PT J AU ANDERSON, MH JONES, RD COOPER, J SMITH, SJ ELLIOTT, DS RITSCH, H ZOLLER, P AF ANDERSON, MH JONES, RD COOPER, J SMITH, SJ ELLIOTT, DS RITSCH, H ZOLLER, P TI VARIANCE AND SPECTRA OF FLUORESCENCE-INTENSITY FLUCTUATIONS FROM 2-LEVEL ATOMS IN A PHASE-DIFFUSING FIELD SO PHYSICAL REVIEW A LA English DT Article C1 PURDUE UNIV,SCH ELECT ENGN,W LAFAYETTE,IN 47907. UNIV INNSBRUCK,INST THEORET PHYS,A-6020 INNSBRUCK,AUSTRIA. RP ANDERSON, MH (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. RI Zoller, Peter/O-1639-2014; Ritsch, Helmut/L-4704-2016 OI Zoller, Peter/0000-0003-4014-1505; NR 24 TC 26 Z9 26 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD DEC 1 PY 1990 VL 42 IS 11 BP 6690 EP 6703 DI 10.1103/PhysRevA.42.6690 PG 14 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EM500 UT WOS:A1990EM50000044 ER PT J AU GELTMAN, S AF GELTMAN, S TI MULTIPHOTON DETACHMENT OF AN ELECTRON FROM H- SO PHYSICAL REVIEW A LA English DT Note RP GELTMAN, S (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 14 TC 19 Z9 19 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD DEC 1 PY 1990 VL 42 IS 11 BP 6958 EP 6961 DI 10.1103/PhysRevA.42.6958 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EM500 UT WOS:A1990EM50000084 ER PT J AU KAUTZ, RL MARTINIS, JM AF KAUTZ, RL MARTINIS, JM TI NOISE-AFFECTED IV CURVES IN SMALL HYSTERETIC JOSEPHSON-JUNCTIONS SO PHYSICAL REVIEW B LA English DT Article RP KAUTZ, RL (reprint author), NATL INST STAND & TECHNOL,325 BROADWAY,BOULDER,CO 80303, USA. NR 49 TC 76 Z9 76 U1 1 U2 6 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD DEC 1 PY 1990 VL 42 IS 16 BP 9903 EP 9937 DI 10.1103/PhysRevB.42.9903 PN A PG 35 WC Physics, Condensed Matter SC Physics GA EK805 UT WOS:A1990EK80500018 ER PT J AU HU, Q MEARS, CA RICHARDS, PL LLOYD, FL AF HU, Q MEARS, CA RICHARDS, PL LLOYD, FL TI QUANTUM SUSCEPTANCE AND ITS EFFECTS ON THE HIGH-FREQUENCY RESPONSE OF SUPERCONDUCTING TUNNEL-JUNCTIONS SO PHYSICAL REVIEW B LA English DT Article C1 MIT,ELECTR RES LAB,CAMBRIDGE,MA 02139. UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720. NATL INST STAND & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303. NR 52 TC 11 Z9 11 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD DEC 1 PY 1990 VL 42 IS 16 BP 10250 EP 10263 DI 10.1103/PhysRevB.42.10250 PN A PG 14 WC Physics, Condensed Matter SC Physics GA EK805 UT WOS:A1990EK80500061 ER PT J AU OCONNELL, JS SEALOCK, RM AF OCONNELL, JS SEALOCK, RM TI PHENOMENOLOGICAL DELTA-NUCLEUS POTENTIAL FROM INCLUSIVE ELECTRON-NUCLEUS SCATTERING DATA SO PHYSICAL REVIEW C LA English DT Article C1 UNIV VIRGINIA,INST NUCL & PARTICLE PHYS,CHARLOTTESVILLE,VA 22901. RP OCONNELL, JS (reprint author), NIST,GAITHERSBURG,MD 20899, USA. NR 11 TC 12 Z9 12 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD DEC PY 1990 VL 42 IS 6 BP 2290 EP 2294 DI 10.1103/PhysRevC.42.2290 PG 5 WC Physics, Nuclear SC Physics GA EM190 UT WOS:A1990EM19000006 ER PT J AU MURRAY, BT MCFADDEN, GB CORIELL, SR AF MURRAY, BT MCFADDEN, GB CORIELL, SR TI STABILIZATION OF TAYLOR-COUETTE FLOW DUE TO TIME-PERIODIC OUTER CYLINDER OSCILLATION SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Article RP MURRAY, BT (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. RI McFadden, Geoffrey/A-7920-2008 OI McFadden, Geoffrey/0000-0001-6723-2103 NR 24 TC 10 Z9 10 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD DEC PY 1990 VL 2 IS 12 BP 2147 EP 2156 DI 10.1063/1.857801 PG 10 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EM498 UT WOS:A1990EM49800009 ER PT J AU EBY, RK CLARK, ES FARMER, BL PIERMARINI, GJ BLOCK, S AF EBY, RK CLARK, ES FARMER, BL PIERMARINI, GJ BLOCK, S TI CRYSTAL-STRUCTURE OF POLY(TETRAFLUOROETHYLENE) HOMOPOLYMERS AND COPOLYMERS IN THE HIGH-PRESSURE PHASE SO POLYMER LA English DT Article C1 UNIV TENNESSEE,KNOXVILLE,TN 37996. UNIV VIRGINIA,CHARLOTTESVILLE,VA 22901. NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. RP EBY, RK (reprint author), UNIV AKRON,INST POLYMER SCI,AKRON,OH 44325, USA. NR 47 TC 17 Z9 17 U1 0 U2 4 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PD DEC PY 1990 VL 31 IS 12 BP 2227 EP 2237 DI 10.1016/0032-3861(90)90307-K PG 11 WC Polymer Science SC Polymer Science GA EL192 UT WOS:A1990EL19200001 ER PT J AU DIMARZIO, EA AF DIMARZIO, EA TI THE GLASS TEMPERATURE OF POLYMER BLENDS SO POLYMER LA English DT Article RP DIMARZIO, EA (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 23 TC 41 Z9 41 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PD DEC PY 1990 VL 31 IS 12 BP 2294 EP 2298 DI 10.1016/0032-3861(90)90315-P PG 5 WC Polymer Science SC Polymer Science GA EL192 UT WOS:A1990EL19200009 ER PT J AU POSTEK, MT AF POSTEK, MT TI LOW ACCELERATING VOLTAGE SEM IMAGING AND METROLOGY USING BACKSCATTERED ELECTRONS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article RP POSTEK, MT (reprint author), NATL INST STAND & TECHNOL,TECHNOL BLDG A-347,GAITHERSBURG,MD 20899, USA. NR 23 TC 21 Z9 21 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD DEC PY 1990 VL 61 IS 12 BP 3750 EP 3754 DI 10.1063/1.1141548 PG 5 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EL893 UT WOS:A1990EL89300017 ER PT J AU MOZER, B BENDERSKY, LA BOETTINGER, WJ AF MOZER, B BENDERSKY, LA BOETTINGER, WJ TI NEUTRON POWDER DIFFRACTION STUDY OF THE ORTHORHOMBIC TI2ALNB PHASE SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article RP MOZER, B (reprint author), NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,GAITHERSBURG,MD 20899, USA. NR 10 TC 56 Z9 61 U1 1 U2 15 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD DEC PY 1990 VL 24 IS 12 BP 2363 EP 2368 DI 10.1016/0956-716X(90)90094-W PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA EL505 UT WOS:A1990EL50500024 ER PT J AU POQUERUSSE, M MCINTOSH, PS AF POQUERUSSE, M MCINTOSH, PS TI TYPE-III RADIO-BURST PRODUCTIVITY OF SOLAR-FLARES .1. RELEASE OF ENERGETIC ELECTRONS OUT OF THE FLARE SITE SO SOLAR PHYSICS LA English DT Article ID CORONAL MASS EJECTIONS; X-RAY; ACCELERATION; PARAMETERS; FEATURES; EMISSION AB We study the statistical relationship between type III radio bursts and optical flares, using the comprehensive flare data base at the NOAA National Geophysical Data Center (Boulder, Colorado), and the radio observations obtained with the ARTEMIS multichannel spectrograph in Nancy (France), operating at 500-100 MHz. At variance with previous results, we find that type III probability of occurrence depends only weakly upon the spatial extension of the flare observed in H-alpha, but strongly upon its brightness. We also confirm that type III probability increases with proximity to sunspots and with mass motions (surges and prominence activity); in addition, our statistical data are consistent with both relations holding at fixed flare brightness. Thus, some of the conditions favorable to type III occurrence are characteristic of compact flares, while others are characteristic of large and long-duration flares, which are often related to mass ejections. This apparent paradox suggests that particle acceleration and magnetic expansion are at work simultaneously in the ejection of electron streams out of flaring sites. C1 NOAA,ENVIRONM RES LAB,SPACE ENVIRONM LAB,BOULDER,CO 80303. RP POQUERUSSE, M (reprint author), OBSERV MEUDON,F-92195 MEUDON,FRANCE. NR 34 TC 6 Z9 6 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-0938 J9 SOL PHYS JI Sol. Phys. PD DEC PY 1990 VL 130 IS 1-2 BP 101 EP 117 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER981 UT WOS:A1990ER98100009 ER PT J AU DONNELLY, RF PUGA, LC AF DONNELLY, RF PUGA, LC TI 13-DAY PERIODICITY AND THE CENTER-TO-LIMB DEPENDENCE OF UV, EUV, AND X-RAY-EMISSION OF SOLAR-ACTIVITY SO SOLAR PHYSICS LA English DT Article ID ULTRAVIOLET IRRADIANCE; FLUX VARIATIONS; VARIABILITY; NM; ROTATION; MODEL AB Periodicity in the 13-14 day range for full-disk UV fluxes comes mainly from episodes of solar activity with two peaks per rotation, produced by the solar rotational modulation from two groups of active regions roughly 180-degrees apart in solar longitude. Thirteen-day periodicity is quite strong relative to the 27-day periodicity for the solar UV flux at most wavelengths in the 1750-2900 angstrom range, because the rapid decrease in UV plage emission on average with increasing solar central angle shapes the UV variations for two peaks per rotation into nearly a 13-day sinusoid, with deep minima when the main groups of active regions are near the limb. Chromospheric EUV lines and ground-based chromospheric indices have moderate 13-day periodicity, where the slightly greater emission of regions near the limbs causes a lower strength relative to the 27-day variations than in the above UV case. The lack of 13-day periodicity in the solar 10.7 cm flux is caused by its broad central angle dependence that averages out the 13-day variations and produces nearly sinusoidal 27-day variations. Optically thin full-disk soft X-rays can have 13-day periodicity out of phase with that of the UV flux because the X-ray emission peaks when both groups of active regions are within view, one group at each limb, when the optically thick UV flux is at a rotational minimum. The lack of 13-day periodicity in the strong coronal lines of Fe XV at 284 angstrom and Fe XVI at 335 angstrom during episodes of 13-day periodicity in UV and soft X-ray fluxes shows that the active region emission in these strong lines is not optically thin; resonant scattering is suggested to cause an effective optical depth near unity in these hot coronal lines for active regions near the limb. RP DONNELLY, RF (reprint author), NOAA,ENVIRONM RES LAB,SPACE ENVIRONM LAB,BOULDER,CO 80303, USA. NR 32 TC 70 Z9 72 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-0938 J9 SOL PHYS JI Sol. Phys. PD DEC PY 1990 VL 130 IS 1-2 BP 369 EP 390 DI 10.1007/BF00156800 PG 22 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER981 UT WOS:A1990ER98100027 ER PT J AU SEYOUM, HM HABIB, JM BENNETT, LH WONGNG, W SHAPIRO, AJ SWARTZENDRUBER, LJ AF SEYOUM, HM HABIB, JM BENNETT, LH WONGNG, W SHAPIRO, AJ SWARTZENDRUBER, LJ TI SUPERCONDUCTING PROPERTIES OF BI2-X-YPBXSNYSR2CA2CU3OZ SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY LA English DT Article ID HIGH-TC PHASE; OXIDE SUPERCONDUCTOR; CU-O; SYSTEM; BI AB Two systematically processed series, Bi1.6Pb(x)Sn0.4-(x)Sr2Ca2Cu3O(z) and Bi1.9-(x)Pb(x)Sn0.1Sr2Ca2Cu3O(z) (where X ranges from 0 to 0.4) have been examined via magnetization measurements, x-ray diffraction and scanning electron microprobe. In addition to observing the often reported high T(c) superconducting transition temperatures at 80 K (2212) and 110 K (2223), a range of well resolved transition temperatures have been found, implying the possible existence of new phases. The presence of Sn in these materials appeared to suppress the formation of the low T(c) Raveau 2201 phase. Also observed was an ordered variation in the amount of flux pinning as the Sn and Pb concentrations were changed. We suggest that Sn increases flux pinning by forming the compound Sr3Sn2O7. C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. RP SEYOUM, HM (reprint author), UNIV DIST COLUMBIA,DEPT PHYS,WASHINGTON,DC 20008, USA. NR 20 TC 16 Z9 16 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0953-2048 J9 SUPERCOND SCI TECH JI Supercond. Sci. Technol. PD DEC PY 1990 VL 3 IS 12 BP 616 EP 621 DI 10.1088/0953-2048/3/12/009 PG 6 WC Physics, Applied; Physics, Condensed Matter SC Physics GA EX861 UT WOS:A1990EX86100009 ER PT J AU DALLY, JW CHEN, YM JAHANMIR, S AF DALLY, JW CHEN, YM JAHANMIR, S TI ANALYSIS OF SUBSURFACE CRACK-PROPAGATION AND IMPLICATIONS FOR WEAR OF ELASTICALLY DEFORMING MATERIALS SO WEAR LA English DT Article ID FRACTURE-MECHANICS; DELAMINATION; SEPARATION; SLIP; LOAD AB Photoelastic methods are used to analyze the stress intensity factors and crack trajectories for subsurface cracks that are relevant to the process of wear particle generation. The specimen represents a half-plane with a shallow subsurface crack oriented parallel to the boundary. A concentrated load is applied to the boundary of the half-plane in close proximity to the crack tip. Three different series of experiments were conducted and results for the stress intensity factors for both the opening (K(I)) and shearing (K(II)) modes were determined. The mixed-mode stress intensity factors were combined to give the magnitude of an effective stress intensity factor which drives the subsurface crack. It was determined that the magnitude of K(II) was much smaller than K(I). The relative signs of K(I) and K(II), which depend on the location of crack tip with respect to the point of load application, were used to predict the crack trajectory. C1 NATL INST STAND & TECHNOL,TRIBOL GRP,GAITHERSBURG,MD 20899. RP DALLY, JW (reprint author), UNIV MARYLAND,DEPT MECH ENGN,COLLEGE PK,MD 20742, USA. NR 20 TC 10 Z9 10 U1 0 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0043-1648 J9 WEAR JI Wear PD DEC PY 1990 VL 141 IS 1 BP 95 EP 114 DI 10.1016/0043-1648(90)90195-G PG 20 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EQ630 UT WOS:A1990EQ63000009 ER PT J AU SCHAEFER, JT AF SCHAEFER, JT TI THE CRITICAL SUCCESS INDEX AS AN INDICATOR OF WARNING SKILL SO WEATHER AND FORECASTING LA English DT Article AB A form of the critical success index (CSI) is used by the National Weather Service to indicate the value of warnings. This verification statistic assumes that the times when an event was neither expected nor observed are of no consequence. It can be shown that the CSI is not an unbiased indicator of forecast skill but is proportional to the frequency of the event being forecast. This innate bias is demonstrated theoretically and via example. An unbiased verification statistic appropriate for forecasts of rare events is presented and applied to severe convective weather warnings. Comparisons of this score to the CSI show the extent of the penalty the CSI extracts from forecasters who work in areas that are not climatically prone to given events. RP SCHAEFER, JT (reprint author), NOAA,601 E 12TH ST,ROOM 1836,KANSAS CITY,MO 64106, USA. NR 0 TC 303 Z9 321 U1 1 U2 9 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0882-8156 J9 WEATHER FORECAST JI Weather Forecast. PD DEC PY 1990 VL 5 IS 4 BP 570 EP 575 DI 10.1175/1520-0434(1990)005<0570:TCSIAA>2.0.CO;2 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FP649 UT WOS:A1990FP64900003 ER PT J AU DOSWELL, CA DAVIESJONES, R KELLER, DL AF DOSWELL, CA DAVIESJONES, R KELLER, DL TI ON SUMMARY MEASURES OF SKILL IN RARE EVENT FORECASTING BASED ON CONTINGENCY-TABLES SO WEATHER AND FORECASTING LA English DT Article AB The so-called True Skill Statistic (TSS) and the Heidke Skill Score (S), as used in the context of the contingency table approach to forecast verification, are compared. It is shown that the TSS approaches the Probability of Detection (POD) whenever the forecasting is dominated by correct forecasts of non-occurrence, i.e., forecasting rare events like severe local storms. This means that the TSS is vulnerable to "hedging" in rare event forecasting. The S-statistic is shown to be superior to the TSS in this situation, accounting for correct forecasts of null events in a controlled fashion. It turns out that the TSS and S values are related in a subtle way, becoming identical when the expected values (due to chance in a k X k contingency table) remain unchanged when comparing the actual forecast table to that of a hypothetical perfect set of forecasts. Examples of the behavior of the TSS and S values in different situations are provided which support the recommendation that S be used in preference to TSS for rare event forecasting. A geometrical interpretation is also given for certain aspects of the 2 X 2 contingency table and this is generalized to the k X l case. Using this geometrical interpretation, it is shown to be possible to apply dichotomous verification techniques in polychotomous situations, thus allowing a direct comparison between dichotomous and polychotomous forecasting. RP DOSWELL, CA (reprint author), NOAA,ENVIRONM RES LABS,NATL SEVERE STORMS LAB,1313 HALLEY CIRCLE,NORMAN,OK 73069, USA. RI Doswell III, Charles/E-7662-2010 NR 0 TC 222 Z9 225 U1 1 U2 8 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0882-8156 J9 WEATHER FORECAST JI Weather Forecast. PD DEC PY 1990 VL 5 IS 4 BP 576 EP 585 DI 10.1175/1520-0434(1990)005<0576:OSMOSI>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FP649 UT WOS:A1990FP64900004 ER PT J AU MADDOX, RA HOWARD, KW AF MADDOX, RA HOWARD, KW TI A STUDY OF 30 YEARS OF JULY AND AUGUST HOURLY PRECIPITATION DATA FOR OMAHA, NEBRASKA - COMMENT SO WEATHER AND FORECASTING LA English DT Letter RP MADDOX, RA (reprint author), NOAA,NATL SEVERE STORMS LAB,ENVIRONM RES LABS,1313 HALLEY CIRCLE,NORMAN,OK 73069, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0882-8156 J9 WEATHER FORECAST JI Weather Forecast. PD DEC PY 1990 VL 5 IS 4 BP 667 EP 670 DI 10.1175/1520-0434(1990)005<0667:COSOYO>2.0.CO;2 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FP649 UT WOS:A1990FP64900012 ER PT J AU MYERS, DR DAWSON, LR KLEM, JF BRENNAN, TM HAMMONS, BE SIMONS, DS COMAS, J PELLEGRINO, J AF MYERS, DR DAWSON, LR KLEM, JF BRENNAN, TM HAMMONS, BE SIMONS, DS COMAS, J PELLEGRINO, J TI UNINTENTIONAL INDIUM INCORPORATION IN GAAS GROWN BY MOLECULAR-BEAM EPITAXY SO APPLIED PHYSICS LETTERS LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. RP MYERS, DR (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 9 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD NOV 26 PY 1990 VL 57 IS 22 BP 2321 EP 2323 DI 10.1063/1.103881 PG 3 WC Physics, Applied SC Physics GA EK411 UT WOS:A1990EK41100014 ER PT J AU BRIAND, JP CHEVALLIER, P INDELICATO, P ZIOCK, KP DIETRICH, DD AF BRIAND, JP CHEVALLIER, P INDELICATO, P ZIOCK, KP DIETRICH, DD TI OBSERVATION AND MEASUREMENT OF N=2-]N=1 TRANSITIONS OF HYDROGENLIKE AND HELIUM-LIKE URANIUM SO PHYSICAL REVIEW LETTERS LA English DT Article C1 UNIV VIRGINIA,CHARLOTTESVILLE,VA 22903. NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. RP BRIAND, JP (reprint author), UNIV PARIS 06,INST RADIUM,PHYS ATOM & NUCL LAB,4 PL JUSSIEU,F-75252 PARIS 05,FRANCE. RI Indelicato, Paul/D-7636-2011 OI Indelicato, Paul/0000-0003-4668-8958 NR 14 TC 69 Z9 70 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD NOV 26 PY 1990 VL 65 IS 22 BP 2761 EP 2764 DI 10.1103/PhysRevLett.65.2761 PG 4 WC Physics, Multidisciplinary SC Physics GA EJ598 UT WOS:A1990EJ59800004 ER PT J AU SMYTH, KC TJOSSEM, PJH AF SMYTH, KC TJOSSEM, PJH TI SIGNAL-DETECTION EFFICIENCY IN MULTIPHOTON IONIZATION FLAME MEASUREMENTS SO APPLIED OPTICS LA English DT Article RP SMYTH, KC (reprint author), NBS,CTR FIRE RES,GAITHERSBURG,MD 20899, USA. NR 39 TC 15 Z9 15 U1 0 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 20 PY 1990 VL 29 IS 33 BP 4891 EP 4898 PG 8 WC Optics SC Optics GA EM029 UT WOS:A1990EM02900008 PM 20577483 ER PT J AU KOO, BC REACH, WT HEILES, C FESEN, RA SHULL, JM AF KOO, BC REACH, WT HEILES, C FESEN, RA SHULL, JM TI DETECTION OF AN EXPANDING H I SHELL IN THE OLD SUPERNOVA REMNANT CTB-80 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 DARTMOUTH COLL,DEPT PHYS & ASTRON,HANOVER,NH 03755. UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO. UNIV COLORADO,CTR ASTROPHYS & SPACE ASTRON,BOULDER,CO 80309. UNIV COLORADO,DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI,BOULDER,CO 80309. RP KOO, BC (reprint author), UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720, USA. OI Reach, William/0000-0001-8362-4094 NR 41 TC 30 Z9 32 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD NOV 20 PY 1990 VL 364 IS 1 BP 178 EP 186 DI 10.1086/169400 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH544 UT WOS:A1990EH54400021 ER PT J AU BECKER, PA BEGELMAN, MC AF BECKER, PA BEGELMAN, MC TI DYNAMIC EFFECTS OF ANNIHILATION IN PAIR-DOMINATED WINDS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV COLORADO,NBS,JOINT INST LAB ASTROPHYS,BOULDER,CO 80302. RP BECKER, PA (reprint author), USN,RES LAB,EO HULBURT CTR SPACE RES,CODE 412111,WASHINGTON,DC 20375, USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD NOV 20 PY 1990 VL 364 IS 1 BP 203 EP 211 DI 10.1086/169403 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH544 UT WOS:A1990EH54400024 ER PT J AU SALBY, ML CALLAGHAN, P SOLOMON, S GARCIA, RR AF SALBY, ML CALLAGHAN, P SOLOMON, S GARCIA, RR TI CHEMICAL FLUCTUATIONS ASSOCIATED WITH VERTICALLY PROPAGATING EQUATORIAL KELVIN WAVES SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 UNIV COLORADO, DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI, BOULDER, CO 80309 USA. NOAA, AERON LAB, BOULDER, CO 80303 USA. NATL CTR ATMOSPHER RES, BOULDER, CO 80307 USA. RP UNIV COLORADO, CTR ATMOSPHER THEORY & ANAL, BOULDER, CO 80309 USA. NR 28 TC 19 Z9 19 U1 1 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X EI 2169-8996 J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD NOV 20 PY 1990 VL 95 IS D12 BP 20491 EP 20505 DI 10.1029/JD095iD12p20491 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EL022 UT WOS:A1990EL02200011 ER PT J AU TIAO, GC REINSEL, GC XU, DM PEDRICK, JH ZHU, XD MILLER, AJ DELUISI, JJ MATEER, CL WUEBBLES, DJ AF TIAO, GC REINSEL, GC XU, DM PEDRICK, JH ZHU, XD MILLER, AJ DELUISI, JJ MATEER, CL WUEBBLES, DJ TI EFFECTS OF AUTOCORRELATION AND TEMPORAL SAMPLING SCHEMES ON ESTIMATES OF TREND AND SPATIAL CORRELATION SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 UNIV WISCONSIN, DEPT STAT, MADISON, WI 53706 USA. NOAA, ENVIRONM RES LAB, BOULDER, CO 80303 USA. NOAA, NATL WEATHER SERV, NATL METEOROL CTR, CTR CLIMATE ANAL, WASHINGTON, DC 20233 USA. UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. RP TIAO, GC (reprint author), UNIV CHICAGO, GRAD SCH BUSINESS, 1101 E 58TH ST, CHICAGO, IL 60637 USA. NR 22 TC 121 Z9 121 U1 3 U2 15 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD NOV 20 PY 1990 VL 95 IS D12 BP 20507 EP 20517 DI 10.1029/JD095iD12p20507 PG 11 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EL022 UT WOS:A1990EL02200012 ER PT J AU WIESE, WL MARTIN, WC AF WIESE, WL MARTIN, WC TI REFERENCE DATA OF ATOMIC SPECTROSCOPY - A CITATION-CLASSIC COMMENTARY ON ATOMIC-ENERGY LEVELS AS DERIVED FROM THE ANALYSES OF OPTICAL-SPECTRA, VOL 1-3 BY MOORE,C.E. SO CURRENT CONTENTS/ENGINEERING TECHNOLOGY & APPLIED SCIENCES LA English DT Article RP WIESE, WL (reprint author), NATL INST STAND & TECHNOL,DIV ATOM & PLASMA RADIAT,GAITHERSBURG,MD 20899, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU INST SCI INFORM INC PI PHILADELPHIA PA 3501 MARKET ST, PHILADELPHIA, PA 19104 SN 0011-3395 J9 CC/ENG TECH APPL SCI PD NOV 19 PY 1990 IS 47 BP 12 EP 12 PG 1 WC Multidisciplinary Sciences; Social Sciences, Interdisciplinary SC Science & Technology - Other Topics; Social Sciences - Other Topics GA EG582 UT WOS:A1990EG58200001 ER PT J AU WIESE, WL MARTIN, WC AF WIESE, WL MARTIN, WC TI REFERENCE DATA OF ATOMIC SPECTROSCOPY - A CITATION-CLASSIC COMMENTARY ON ATOMIC-ENERGY LEVELS AS DERIVED FROM THE ANALYSES OF OPTICAL-SPECTRA, VOL 1-3 BY MOORE,C.E. SO CURRENT CONTENTS/PHYSICAL CHEMICAL & EARTH SCIENCES LA English DT Article RP WIESE, WL (reprint author), NATL INST STAND & TECHNOL,DIV ATOM & PLASMA RADIAT,GAITHERSBURG,MD 20899, USA. NR 8 TC 0 Z9 0 U1 0 U2 0 PU INST SCI INFORM INC PI PHILADELPHIA PA 3501 MARKET ST, PHILADELPHIA, PA 19104 SN 0163-2574 J9 CC/PHYS CHEM EARTH PD NOV 19 PY 1990 IS 47 BP 12 EP 12 PG 1 WC Multidisciplinary Sciences; Social Sciences, Interdisciplinary SC Science & Technology - Other Topics; Social Sciences - Other Topics GA EG581 UT WOS:A1990EG58100001 ER PT J AU RAIZEN, MG ROSENSTEIN, B AF RAIZEN, MG ROSENSTEIN, B TI NONLINEAR MAGNETOOPTICS OF VACUUM - 2ND HARMONIC-GENERATION - COMMENT SO PHYSICAL REVIEW LETTERS LA English DT Letter C1 UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER V6T 1W5,BC,CANADA. UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106. RP RAIZEN, MG (reprint author), NATL INST STAND & TECHNOL,DIV TIME & FREQUENCY,325 S BROADWAY,BOULDER,CO 80303, USA. NR 5 TC 4 Z9 4 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD NOV 19 PY 1990 VL 65 IS 21 BP 2744 EP 2744 DI 10.1103/PhysRevLett.65.2744 PG 1 WC Physics, Multidisciplinary SC Physics GA EH686 UT WOS:A1990EH68600034 ER PT J AU NEWBURY, DE FIORI, CE MARINENKO, RB MYKLEBUST, RL SWYT, CR BRIGHT, DS AF NEWBURY, DE FIORI, CE MARINENKO, RB MYKLEBUST, RL SWYT, CR BRIGHT, DS TI COMPOSITIONAL MAPPING WITH THE ELECTRON-PROBE MICROANALYZER .1. SO ANALYTICAL CHEMISTRY LA English DT Article RP NEWBURY, DE (reprint author), NATL INST STAND & TECHNOL,CTR ANALYT CHEM,MICROANAL RES GRP,GAITHERSBURG,MD 20899, USA. NR 17 TC 21 Z9 21 U1 2 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD NOV 15 PY 1990 VL 62 IS 22 BP A1159 EP A1166 PG 8 WC Chemistry, Analytical SC Chemistry GA EH237 UT WOS:A1990EH23700002 ER PT J AU PINE, AS LOONEY, JP AF PINE, AS LOONEY, JP TI DECOUPLING IN THE LINE MIXING OF ACETYLENE INFRARED Q-BRANCHES SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 NIST,DIV TEMP & PRESSURE,GAITHERSBURG,MD 20899. RP PINE, AS (reprint author), NIST,DIV MOLEC PHYS,GAITHERSBURG,MD 20899, USA. NR 85 TC 31 Z9 31 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 15 PY 1990 VL 93 IS 10 BP 6942 EP 6953 DI 10.1063/1.459471 PG 12 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100004 ER PT J AU HO, J ERVIN, KM LINEBERGER, WC AF HO, J ERVIN, KM LINEBERGER, WC TI PHOTOELECTRON-SPECTROSCOPY OF METAL CLUSTER ANIONS - CUN-, AGN-, AND AUN- SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO,NIST,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. RP HO, J (reprint author), UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309, USA. NR 98 TC 458 Z9 459 U1 9 U2 67 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 15 PY 1990 VL 93 IS 10 BP 6987 EP 7002 DI 10.1063/1.459475 PG 16 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100009 ER PT J AU NELSON, DD SCHIFFMAN, A NESBITT, DJ ORLANDO, JJ BURKHOLDER, JB AF NELSON, DD SCHIFFMAN, A NESBITT, DJ ORLANDO, JJ BURKHOLDER, JB TI H+O3 FOURIER-TRANSFORM INFRARED-EMISSION AND LASER-ABSORPTION STUDIES OF OH (X2-PI) RADICAL - AN EXPERIMENTAL DIPOLE-MOMENT FUNCTION AND STATE-TO-STATE EINSTEIN-A COEFFICIENTS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO, NIST, JOINT INST LAB ASTROPHYS, DIV QUANTUM PHYS, BOULDER, CO 80309 USA. UNIV COLORADO, DEPT CHEM & BIOCHEM, BOULDER, CO 80309 USA. UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. NOAA, AERON LAB, BOULDER, CO 80303 USA. RI Burkholder, James/H-4914-2013 NR 31 TC 100 Z9 101 U1 2 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 15 PY 1990 VL 93 IS 10 BP 7003 EP 7019 DI 10.1063/1.459476 PG 17 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100010 ER PT J AU RUDOLPH, H DUBS, RL MCKOY, V AF RUDOLPH, H DUBS, RL MCKOY, V TI COOPER MINIMA AND CIRCULAR-DICHROISM IN PHOTOELECTRON ANGULAR-DISTRIBUTIONS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Note C1 CALTECH,ARTHUR AMOS NOYES LAB CHEM PHYS,PASADENA,CA 91125. NIST,GAITHERSBURG,MD 20899. NR 21 TC 5 Z9 5 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 15 PY 1990 VL 93 IS 10 BP 7513 EP 7514 DI 10.1063/1.459377 PG 2 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100070 ER PT J AU KANTHA, LH ROSATI, A AF KANTHA, LH ROSATI, A TI THE EFFECT OF CURVATURE ON TURBULENCE IN STRATIFIED FLUIDS SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article C1 PRINCETON UNIV,GEOPHYS FLUID DYNAM LAB,PRINCETON,NJ 08542. RP KANTHA, LH (reprint author), INST NAVAL OCEANOG,STENNIS SPACE CTR,MS 39529, USA. NR 20 TC 4 Z9 4 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD NOV 15 PY 1990 VL 95 IS C11 BP 20313 EP 20330 DI 10.1029/JC095iC11p20313 PG 18 WC Oceanography SC Oceanography GA EK497 UT WOS:A1990EK49700011 ER PT J AU DUTTA, BK RANDOLPH, D SIKDAR, SK AF DUTTA, BK RANDOLPH, D SIKDAR, SK TI THIN AND COMPOSITE HIGH-FLUX MEMBRANES OF PERFLUOROSULFONATED ION-EXCHANGE POLYMER SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article RP DUTTA, BK (reprint author), NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,325 BROADWAY,BOULDER,CO 80303, USA. NR 15 TC 12 Z9 12 U1 4 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD NOV 15 PY 1990 VL 54 IS 1-2 BP 51 EP 61 DI 10.1016/S0376-7388(00)82069-4 PG 11 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA EM566 UT WOS:A1990EM56600004 ER PT J AU HUIE, RE CLIFTON, CL AF HUIE, RE CLIFTON, CL TI TEMPERATURE-DEPENDENCE OF THE RATE CONSTANTS FOR REACTIONS OF THE SULFATE RADICAL, SO4-, WITH ANIONS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article RP HUIE, RE (reprint author), NATL INST STAND & TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899, USA. RI Huie, Robert/A-5645-2010 NR 32 TC 103 Z9 105 U1 4 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD NOV 15 PY 1990 VL 94 IS 23 BP 8561 EP 8567 DI 10.1021/j100386a015 PG 7 WC Chemistry, Physical SC Chemistry GA EJ411 UT WOS:A1990EJ41100015 ER PT J AU OBRIEN, E BRANSCOME, LE AF OBRIEN, E BRANSCOME, LE TI THE EFFECTS OF LARGE-SCALE TOPOGRAPHY ON THE CIRCULATION IN LOW-ORDER MODELS SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID PLANETARY-WAVES; PERSISTENT ANOMALIES; MULTIPLE EQUILIBRIA; STATIONARY WAVES; WEATHER REGIMES; BLOCKING; ATMOSPHERE; FLOW; INSTABILITY; VORTICITY AB The effects of topography are examined in a class of low-order quasi-geostrophic models on a midlatitude beta-plane. In the absence of topography the models are capable of producing qualitatively realistic zonal-mean circulations. The maintenance of the zonally symmetric and asymmetric circulations are examined with different spectral truncations and topographic configurations. The response to an isolated mountain peak is the most thoroughly investigated. When the model is run without wave-wave interactions, the time-mean wave pattern forced by the isolated mountain is a superposition of waves which are either in phase or 180-degrees out of phase with the mountain. When they are included, transient wave-wave interactions alter the mean zonal flow, which leads to a substantial modification of the time-mean wave. Specifically, the amplitude of the longest planetary wave in the model is enhanced as that wave is pushed closer to resonance by the change in the midlevel zonal flow. A phase shift relative to the topography is also induced. A reduction in surface zonal wind caused by the nonlinear wave interactions leads to weaker topographic forcing and smaller time-mean amplitudes for shorter waves. Although the heat and voriticity budgets of the time-mean wave are dominated by "linear" wave-mean flow interactions for the planetary wave, the nonlinear advective terms are of significant magnitude and generally act to oppose the corresponding linear terms for short waves. At least five meridional modes are required to produce qualitatively realistic stationary waves, which remain relatively unchanged as the resolution is further increased. A (5, 5) model (which has 5 zonal waves, a zonal flow, and 5 meridional modes) and higher order models exhibit a significant amount of low-frequency variability and produce persistent anomalies whose time scales are not unlike those of observed anomalies. The planetary wave is not confined to a small region of phase, but undergoes considerable fluctuations in position and amplitude as evidenced by large variability in mountain-induced kinetic energy conversions. The most frequently occurring anomaly pattern can be described as an amplification and slight upstream shifting of the time-mean wave pattern. Low-frequency variability is much less pronounced in more severe truncations. C1 PRINCETON UNIV,PROGRAM ATMOSPHER & OCEAN SCI,PRINCETON,NJ 08544. ENVIRONM DYNAM RES INC,PALM BEACH GARDENS,FL. NR 33 TC 4 Z9 4 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD NOV 15 PY 1990 VL 47 IS 22 BP 2597 EP 2611 DI 10.1175/1520-0469(1990)047<2597:TEOLST>2.0.CO;2 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ510 UT WOS:A1990EQ51000001 ER PT J AU SOLOMON, S TUCK, A AF SOLOMON, S TUCK, A TI EVALUATING OZONE DEPLETION POTENTIALS SO NATURE LA English DT Letter RP SOLOMON, S (reprint author), NOAA,AERON LAB,BOULDER,CO 80303, USA. RI Tuck, Adrian/F-6024-2011 OI Tuck, Adrian/0000-0002-2074-0538 NR 15 TC 4 Z9 4 U1 0 U2 0 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD NOV 15 PY 1990 VL 348 IS 6298 BP 203 EP & DI 10.1038/348203a0 PG 0 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EH796 UT WOS:A1990EH79600040 ER PT J AU MILDNER, DFR AF MILDNER, DFR TI NEUTRON FOCUSING USING MICROGUIDES SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article AB Analytical techniques which are dependent solely on the neutron capture reaction rate may be advanced by neutron focusing. We describe a system composed of curved totally reflecting mirrors for the focusing of neutrons by the superposition of intensity transmitted through many thin silicon films, each of which points individually to the desired focus. The acceptance technique shows that the maximum current density is obtained with a large number of microguide sheets of minimum thickness, a short focal length, and a large radius of curvature. This analysis indicates the transmission properties of continuously curved neutron guides as a function of wavelength, and enables the calculation of an estimate of transmission efficiency. Reflection losses increase geometrically with the average number of reflections. The major losses in transmission are caused by misalignment of the layers which diffuse the focus from its theoretical maximum. We propose using 25-mu-m thin silicon wafers with a 100 nm coating of nickel, loaded into a cassette specially fabricated to ensure overlapping and to enable a small curvature to be maintained. The length of the system should be as short as possible (approximately few cm) to reduce both reflection losses from the nickel coating and scattering losses in the neutron transmitting medium of silicon. RP MILDNER, DFR (reprint author), NATL INST STAND & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 22 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD NOV 15 PY 1990 VL 297 IS 1-2 BP 38 EP 46 DI 10.1016/0168-9002(90)91350-K PG 9 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA ER731 UT WOS:A1990ER73100006 ER PT J AU BORDET, P CHEONG, SW FISK, Z FOURNIER, T HODEAU, JL MAREZIO, M SANTORO, A VARELA, A AF BORDET, P CHEONG, SW FISK, Z FOURNIER, T HODEAU, JL MAREZIO, M SANTORO, A VARELA, A TI STRUCTURAL STUDIES OF THE T-STAR-PHASES (LA, TB, PB)2CUO4, (LA, TB, SR)2CUO4 - STRUCTURAL TRANSITION IN (LA, TB, PB)2CUO4 SO PHYSICA C LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. AT&T BELL LABS,MURRAY HILL,NJ 07974. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. RP BORDET, P (reprint author), UNIV JOSEPH FOURIER,CNRS,CRISTALLOG LAB,166X,F-38042 GRENOBLE,FRANCE. RI varela, Aurea/L-6053-2014; Fournier, Thierry/E-5836-2016 NR 11 TC 8 Z9 8 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD NOV 15 PY 1990 VL 171 IS 5-6 BP 468 EP 478 DI 10.1016/0921-4534(90)90260-L PG 11 WC Physics, Applied SC Physics GA EL778 UT WOS:A1990EL77800014 ER PT J AU DOUGHTY, DA GALLAGHER, A AF DOUGHTY, DA GALLAGHER, A TI CAUSES OF SIH4 DISSOCIATION IN SILANE DC DISCHARGES SO PHYSICAL REVIEW A LA English DT Article C1 UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO 80309. NR 26 TC 29 Z9 29 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 15 PY 1990 VL 42 IS 10 BP 6166 EP 6170 DI 10.1103/PhysRevA.42.6166 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EJ421 UT WOS:A1990EJ42100040 ER PT J AU RICHMOND, ED PELLEGRINO, JG TWIGG, ME QADRI, S DUFFY, MT AF RICHMOND, ED PELLEGRINO, JG TWIGG, ME QADRI, S DUFFY, MT TI UNIQUE PROPERTIES OF MOLECULAR-BEAM EPITAXY SILICON ON SAPPHIRE USING INSITU HIGH-TEMPERATURE SUBSTRATE ANNEALING COMPARED WITH CHEMICALLY VAPOR-DEPOSITED SILICON ON SAPPHIRE SO THIN SOLID FILMS LA English DT Article C1 NIST,GAITHERSBURG,MD 20889. GEOCENTERS INC,FT WASHINGTON,MD 20744. DAVID SARNOFF RES CTR,PRINCETON,NJ 08543. RP RICHMOND, ED (reprint author), USN,RES LAB,CODE 6816,WASHINGTON,DC 20375, USA. NR 24 TC 22 Z9 22 U1 1 U2 2 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0040-6090 J9 THIN SOLID FILMS JI Thin Solid Films PD NOV 15 PY 1990 VL 192 IS 2 BP 287 EP 294 DI 10.1016/0040-6090(90)90073-M PG 8 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA EK368 UT WOS:A1990EK36800010 ER PT J AU KOVAL, CA DREW, SM NOBLE, RD YU, JH AF KOVAL, CA DREW, SM NOBLE, RD YU, JH TI ENVIRONMENTAL INORGANIC-CHEMISTRY .1. ELECTROCHEMISTRY OF A WATER-SOLUBLE IRON PORPHYRIN AND ITS EXPLOITATION FOR SELECTIVE REMOVAL AND CONCENTRATION OF ENVIRONMENTALLY HAZARDOUS MATERIALS VIA ELECTROCHEMICALLY MODULATED COMPLEXATION SO INORGANIC CHEMISTRY LA English DT Article C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,DEPT CHEM ENGN,BOULDER,CO 80309. RP KOVAL, CA (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,DEPT CHEM & BIOCHEM,BOULDER,CO 80309, USA. NR 37 TC 9 Z9 9 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD NOV 14 PY 1990 VL 29 IS 23 BP 4708 EP 4714 DI 10.1021/ic00348a025 PG 7 WC Chemistry, Inorganic & Nuclear SC Chemistry GA EH845 UT WOS:A1990EH84500025 ER PT J AU MUNDER, A CHESLER, SN WISE, SA AF MUNDER, A CHESLER, SN WISE, SA TI CAPILLARY SUPERCRITICAL FLUID CHROMATOGRAPHY OF EXPLOSIVES - INVESTIGATIONS ON THE INTERACTIONS BETWEEN THE ANALYTES, THE MOBILE PHASE AND THE STATIONARY PHASE SO JOURNAL OF CHROMATOGRAPHY LA English DT Article C1 NATL INST STAND & TECHNOL,CTR ANALYT CHEM,DIV ORGAN ANALYT RES,GAITHERSBURG,MD 20899. NR 35 TC 15 Z9 15 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0021-9673 J9 J CHROMATOGR PD NOV 14 PY 1990 VL 521 IS 1 BP 63 EP 70 DI 10.1016/0021-9673(90)85065-4 PG 8 WC Chemistry, Analytical SC Chemistry GA EK602 UT WOS:A1990EK60200006 ER PT J AU SANSONETTI, CJ GILLASPY, JD CROMER, CL AF SANSONETTI, CJ GILLASPY, JD CROMER, CL TI PRECISE EXPERIMENTAL TEST OF CALCULATED 2-ELECTRON LAMB SHIFTS IN HELIUM SO PHYSICAL REVIEW LETTERS LA English DT Article RP SANSONETTI, CJ (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 19 TC 23 Z9 23 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD NOV 12 PY 1990 VL 65 IS 20 BP 2539 EP 2542 DI 10.1103/PhysRevLett.65.2539 PG 4 WC Physics, Multidisciplinary SC Physics GA EH362 UT WOS:A1990EH36200016 ER PT J AU HOWELL, B RENEKER, DH AF HOWELL, B RENEKER, DH TI MORPHOLOGY OF POLYMER-FILMS AND SINGLE MOLECULES SO JOURNAL OF APPLIED POLYMER SCIENCE LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. NR 30 TC 4 Z9 4 U1 1 U2 3 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0021-8995 J9 J APPL POLYM SCI JI J. Appl. Polym. Sci. PD NOV 5 PY 1990 VL 40 IS 9-10 BP 1663 EP 1682 DI 10.1002/app.1990.070400921 PG 20 WC Polymer Science SC Polymer Science GA DL587 UT WOS:A1990DL58700021 ER PT J AU WAN, KT LAWN, BR AF WAN, KT LAWN, BR TI SURFACE FORCES AT CRACK INTERFACES IN MICA IN THE PRESENCE OF CAPILLARY CONDENSATION SO ACTA METALLURGICA ET MATERIALIA LA English DT Article C1 NATL INST STANDARDS & TECHNOL, DIV CERAM, GAITHERSBURG, MD 20899 USA. NR 45 TC 26 Z9 27 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD NOV PY 1990 VL 38 IS 11 BP 2073 EP 2083 DI 10.1016/0956-7151(90)90075-R PG 11 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA EE034 UT WOS:A1990EE03400006 ER PT J AU DAUSKARDT, RH CARTER, WC VEIRS, DK RITCHIE, RO AF DAUSKARDT, RH CARTER, WC VEIRS, DK RITCHIE, RO TI TRANSIENT SUBCRITICAL CRACK-GROWTH BEHAVIOR IN TRANSFORMATION-TOUGHENED CERAMICS SO ACTA METALLURGICA ET MATERIALIA LA English DT Article C1 NATL INST STANDARDS & TECHNOL, GAITHERSBURG, MD 20899 USA. UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB, CTR ADV MAT, BERKELEY, CA 94720 USA. RP DAUSKARDT, RH (reprint author), UNIV CALIF BERKELEY, DEPT MAT SCI & MINERAL ENGN, BERKELEY, CA 94720 USA. RI Ritchie, Robert/A-8066-2008; Carter, W/K-2406-2012 OI Ritchie, Robert/0000-0002-0501-6998; NR 29 TC 21 Z9 21 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD NOV PY 1990 VL 38 IS 11 BP 2327 EP 2336 DI 10.1016/0956-7151(90)90099-3 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA EE034 UT WOS:A1990EE03400030 ER PT J AU WOLD, CN HAY, WW AF WOLD, CN HAY, WW TI ESTIMATING ANCIENT SEDIMENT FLUXES SO AMERICAN JOURNAL OF SCIENCE LA English DT Article C1 UNIV COLORADO MUSEUM,BOULDER,CO 80309. RP WOLD, CN (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,DEPT GEOL,CAMPUS BOX 250,BOULDER,CO 80309, USA. NR 37 TC 44 Z9 47 U1 0 U2 5 PU KLINE GEOLOGY LABORATORY PI NEW HAVEN PA YALE UNIV, NEW HAVEN, CT 06520 SN 0002-9599 J9 AM J SCI JI Am. J. Sci. PD NOV PY 1990 VL 290 IS 9 BP 1069 EP 1089 PG 21 WC Geosciences, Multidisciplinary SC Geology GA EG614 UT WOS:A1990EG61400003 ER PT J AU HOLTER, B VANDENBERGHE, G AF HOLTER, B VANDENBERGHE, G TI A COMPARISON OF VECTORIZED METHODS FOR SOLVING THE 2-DIMENSIONAL DIFFUSION EQUATION - MULTIGRID VERSUS POLYNOMIAL PRECONDITIONED CONJUGATE-GRADIENT SO APPLIED MATHEMATICS AND COMPUTATION LA English DT Article C1 FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST,TALLAHASSEE,FL 32306. US DEPT COMMERCE,NOAA,SUITLAND,MD 20233. RP HOLTER, B (reprint author), CONTROL DATA CORP,DIV PROFESS SERV,TALLAHASSEE,FL 32306, USA. NR 11 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0096-3003 J9 APPL MATH COMPUT JI Appl. Math. Comput. PD NOV PY 1990 VL 40 IS 1 BP 77 EP 103 DI 10.1016/0096-3003(90)90099-O PG 27 WC Mathematics, Applied SC Mathematics GA EF815 UT WOS:A1990EF81500006 ER PT J AU WHITMORE, BC LUCAS, RA MCELROY, DB STEIMANCAMERON, TY SACKETT, PD OLLING, RP AF WHITMORE, BC LUCAS, RA MCELROY, DB STEIMANCAMERON, TY SACKETT, PD OLLING, RP TI NEW OBSERVATIONS AND A PHOTOGRAPHIC ATLAS OF POLAR-RING GALAXIES SO ASTRONOMICAL JOURNAL LA English DT Article C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. STATE UNIV GRONINGEN,KAPETYN ASTRON INST,9700 AB GRONINGEN,NETHERLANDS. UNIV PITTSBURGH,PITTSBURGH,PA 15260. COLUMBIA UNIV,DEPT ASTRON,NEW YORK,NY 10027. RP WHITMORE, BC (reprint author), SPACE TELESCOPE SCI INST,3700 SAN MARTIN DR,BALTIMORE,MD 21218, USA. NR 104 TC 246 Z9 252 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD NOV PY 1990 VL 100 IS 5 BP 1489 EP & DI 10.1086/115614 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EF667 UT WOS:A1990EF66700011 ER PT J AU FITZPATRICK, EL GARMANY, CD AF FITZPATRICK, EL GARMANY, CD TI THE H-R DIAGRAM OF THE LARGE MAGELLANIC CLOUD AND IMPLICATIONS FOR STELLAR EVOLUTION SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV COLORADO,NBS,JOINT INST LAB ASTROPHYS,BOULDER,CO 80302. NATL INST STANDARDS & TECHNOL,BOULDER,CO. RP FITZPATRICK, EL (reprint author), PRINCETON UNIV OBSERV,PEYTON HALL,PRINCETON,NJ 08544, USA. NR 64 TC 113 Z9 113 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD NOV 1 PY 1990 VL 363 IS 1 BP 119 EP 130 DI 10.1086/169322 PN 1 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED626 UT WOS:A1990ED62600009 ER PT J AU CANFIELD, RC KIPLINGER, AL PENN, MJ WULSER, JP AF CANFIELD, RC KIPLINGER, AL PENN, MJ WULSER, JP TI H-ALPHA SPECTRA OF DYNAMIC CHROMOSPHERIC PROCESSES IN 5 WELL-OBSERVED X-RAY FLARES SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV COLORADO,DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI,BOULDER,CO 80309. NOAA,SPACE ENVIRONM LAB,BOULDER,CO 80303. RP CANFIELD, RC (reprint author), UNIV HAWAII,INST ASTRON,2680 WOODLAWN DR,HONOLULU,HI 96822, USA. NR 31 TC 58 Z9 60 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD NOV 1 PY 1990 VL 363 IS 1 BP 318 EP 325 DI 10.1086/169345 PN 1 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED626 UT WOS:A1990ED62600032 ER PT J AU WAPLES, RS AEBERSOLD, PB AF WAPLES, RS AEBERSOLD, PB TI TREATMENT OF DATA FOR DUPLICATED GENE LOCI IN MIXED-STOCK FISHERY ANALYSIS SO CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES LA English DT Article RP WAPLES, RS (reprint author), NATL MARINE FISHERIES SERV,NW FISHERIES CTR,2725 MONTLAKE BLVD E,SEATTLE,WA 98112, USA. RI Waples, Robin/K-1126-2016 NR 17 TC 5 Z9 6 U1 0 U2 1 PU NATL RESEARCH COUNCIL CANADA PI OTTAWA PA RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADA SN 0706-652X J9 CAN J FISH AQUAT SCI JI Can. J. Fish. Aquat. Sci. PD NOV PY 1990 VL 47 IS 11 BP 2092 EP 2098 DI 10.1139/f90-234 PG 7 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA EG744 UT WOS:A1990EG74400004 ER PT J AU CARRASCO, KR TILBURY, KL MYERS, MS AF CARRASCO, KR TILBURY, KL MYERS, MS TI ASSESSMENT OF THE PISCINE MICRONUCLEUS TEST AS AN INSITU BIOLOGICAL INDICATOR OF CHEMICAL CONTAMINANT EFFECTS SO CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES LA English DT Article RP CARRASCO, KR (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,SEATTLE,WA 98112, USA. NR 80 TC 207 Z9 215 U1 0 U2 5 PU NATL RESEARCH COUNCIL CANADA PI OTTAWA PA RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADA SN 0706-652X J9 CAN J FISH AQUAT SCI JI Can. J. Fish. Aquat. Sci. PD NOV PY 1990 VL 47 IS 11 BP 2123 EP 2136 DI 10.1139/f90-237 PG 14 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA EG744 UT WOS:A1990EG74400007 ER PT J AU EMBLEY, RW EITTREIM, SL MCHUGH, CH NORMARK, WR RAU, GH HECKER, B DEBEVOISE, AE GREENE, HG RYAN, WBF HARROLD, C BAXTER, C AF EMBLEY, RW EITTREIM, SL MCHUGH, CH NORMARK, WR RAU, GH HECKER, B DEBEVOISE, AE GREENE, HG RYAN, WBF HARROLD, C BAXTER, C TI GEOLOGICAL SETTING OF CHEMOSYNTHETIC COMMUNITIES IN THE MONTEREY FAN VALLEY SYSTEM SO DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS LA English DT Article ID DEEP-SEA FAN; HYDROCARBON SEEP COMMUNITIES; BIOLOGICAL COMMUNITIES; BACTERIAL SYMBIONTS; LAURENTIAN FAN; POGONOPHORA; CALIFORNIA; CANYON; FAUNA AB Alvin dives and camera tows within the "meander area" of the Monterey and Ascension Fan Valleys have located nine chemosynthetic communities over depths ranging from 3000 to 3600 m over a distance of 55 km. Most of the observed communities consist largely of Calyptogena phaseoliformis, but Solemya (species unknown) and a pogonophoran (genus Polybrachia), have also been identified. The delta-C-13 values (-35.0 to -33.6 per mil) and the presence of APS reductase and ATP sulfurylase in the C. phaseoliformis tissue is consistent with sulfur chemoautotrophy. Two reduced organic matter sources for the H2S are proposed: (1) older beds exposed by the deep erosion (up to 400 m) of the fan valleys and (2) concentrations of anaerobically decomposed organic matter buried in the valley floor. C1 US GEOL SURVEY,MENLO PK,CA 94025. COLUMBIA UNIV,LAMONT DOHERTY GEOL OBSERV,PALISADES,NY 10964. UNIV CALIF SANTA CRUZ,INST MARINE SCI,SANTA CRUZ,CA 95064. UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG,DIV MARINE BIOL RES,LA JOLLA,CA 92093. MONTEREY BAY AQUARIUM,RES INST,MONTEREY,CA 93950. STANFORD UNIV,HOPKINS MARINE STN,STANFORD,CA 94305. RP EMBLEY, RW (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,HATFIELD MARINE SCI CTR,NEWPORT,OR 97365, USA. NR 45 TC 49 Z9 49 U1 3 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0198-0149 J9 DEEP-SEA RES PD NOV PY 1990 VL 37 IS 11 BP 1651 EP & DI 10.1016/0198-0149(90)90069-8 PG 0 WC Oceanography SC Oceanography GA EQ426 UT WOS:A1990EQ42600001 ER PT J AU RAU, GH MCHUGH, CM HARROLD, C BAXTER, C HECKER, B EMBLEY, RW AF RAU, GH MCHUGH, CM HARROLD, C BAXTER, C HECKER, B EMBLEY, RW TI DELTA-C-13, DELTA-N-15 AND DELTA-O-18 OF CALYPTOGENA-PHASEOLIFORMIS (BIVALVE MOLLUSK) FROM THE ASCENSION FAN-VALLEY NEAR MONTEREY, CALIFORNIA SO DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS LA English DT Article ID HYDROTHERMAL VENT MUSSEL; NITROGEN ISOTOPE RATIOS; ROSE GARDEN VENT; SUBDUCTION ZONE; ENDOSYMBIOTIC BACTERIA; SEEP COMMUNITY; CARBON-SOURCES; TUBE WORM; C-13/C-12; N-15 AB The delta-C-13 and delta-N-15of the soft tissues of two calyptogena phaseoliformis specimens sampled from the floor of Ascension Fan-Valley, off the Monterey Peninsula, California, ranged from -35.0 to -33.6 parts per thousands, respectively. The carbon isotope abundances are similar to those of other Calyptogena known or believed to be nutritionally dependent on sulfide-based chemoautotrophic symbionts. Calyptogena delta-15N values and their geographic variation indicate an unusual source of dietary nitrogen for these animals. The delta-C-13 and delta-O-18 values for Calyptogena shells from the Ascension and Monterey Fan-Valleys approximate those reported for Calyptogena from three other locations in the Pacific and appear to reflect shell formation from constituents within ambient deep-ocean water. C1 COLUMBIA UNIV,LAMONT DOHERTY GEOL OBSERV,PALISADES,NY 10964. MONTEREY BAY AQUARIUM,MONTEREY,CA 93950. HOPKINS MARINE STN,PACIFIC GROVE,CA 93950. OREGON STATE UNIV,HATFIELD SCI CTR,NOAA,PACIFIC MARINE ENVIRONM LAB,NEWPORT,OR 97365. RP RAU, GH (reprint author), UNIV CALIF SANTA CRUZ,INST MARINE SCI,SANTA CRUZ,CA 95064, USA. NR 50 TC 15 Z9 15 U1 2 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0198-0149 J9 DEEP-SEA RES PD NOV PY 1990 VL 37 IS 11 BP 1669 EP 1676 DI 10.1016/0198-0149(90)90070-C PG 8 WC Oceanography SC Oceanography GA EQ426 UT WOS:A1990EQ42600002 ER PT J AU LANDAHL, JT MCCAIN, BB MYERS, MS RHODES, LD BROWN, DW AF LANDAHL, JT MCCAIN, BB MYERS, MS RHODES, LD BROWN, DW TI CONSISTENT ASSOCIATIONS BETWEEN HEPATIC-LESIONS IN ENGLISH SOLE (PAROPHRYS-VETULUS) AND POLYCYCLIC AROMATIC-HYDROCARBONS IN BOTTOM SEDIMENT SO ENVIRONMENTAL HEALTH PERSPECTIVES LA English DT Article; Proceedings Paper CT CONF ON ADVANCES IN LEAD RESEARCH : IMPLICATIONS FOR ENVIRONMENTAL HEALTH CY JAN 09-11, 1989 CL RESEARCH TRIANGLE PARK, NC SP NIEHS, NICHHD ID C-14 POLYCHLORINATED-BIPHENYLS; PUGET-SOUND; TOXIC-CHEMICALS; SIMULTANEOUS EXPOSURE; H-3 BENZOPYRENE; WASHINGTON; NEOPLASMS; FISH; DISEASES; CARCINOGENESIS AB A consistent and statistically significant association between prevalence of hepatic neoplasms in free-living sole (Parophrys vetulus) and levels of anthropogenic polyclic aromatic hydrocarbons in bottom sediment from sites of fish capture was documented in a series of studies conducted over a period of 7 years in Puget Sound, Washington. This result strengthens the evidence supporting a causal relationship between exposure to sediment-associated hydrocarbons and development of hepatic neoplasms in this bottom-dwelling marine fish species. Prevalences of two other distinct categories of idiopathic hepatic lesions-megalocytic hepatosis and steatosis/hemosiderosis-also showed consistent, statistically significant associations with polycyclic aromatic hydrocarbon concentrations in bottom sediment, and association with prevalence of a third category (putatively preneoplastic foci of cellular alteration) approached statistical significance. On the basis of other studies, megalocytic hepatosis and foci of cellular alteration are both considered to be important precursor lesions in the stepwise histogenesis of hepatic neoplasms. C1 UNIV WASHINGTON,DEPT BIOL STRUCT,SEATTLE,WA 98195. RP LANDAHL, JT (reprint author), NOAA,NATL MARINE FISHERIES SERV,NW FISHERIES CTR,DIV ENVIRONM CONSERVAT,2725 MONTLAKE BLVD E,SEATTLE,WA 98112, USA. OI Rhodes, Linda/0000-0003-4995-9426 FU NCI NIH HHS [Y01-CP-40507] NR 39 TC 35 Z9 37 U1 0 U2 4 PU NATL INST ENVIRON HEALTH SCI PI RES TRIANGLE PK PA PO BOX 12233, RES TRIANGLE PK, NC 27709 SN 0091-6765 J9 ENVIRON HEALTH PERSP JI Environ. Health Perspect. PD NOV PY 1990 VL 89 BP 195 EP 203 DI 10.2307/3430917 PG 9 WC Environmental Sciences; Public, Environmental & Occupational Health; Toxicology SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Toxicology GA EV023 UT WOS:A1990EV02300029 PM 2088747 ER PT J AU STURGES, WT TAYLOR, BE AF STURGES, WT TAYLOR, BE TI ATMOSPHERIC CONCENTRATIONS OF CHLORINATED SOLVENTS AROUND A NUCLEAR PROCESSING PLANT IN COLORADO SO ENVIRONMENTAL TECHNOLOGY LA English DT Article RP STURGES, WT (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU SELPER LTD, PUBLICATIONS DIV PI LONDON PA 79 RUSTHALL AVENUE, LONDON, ENGLAND W4 1BN SN 0959-3330 J9 ENVIRON TECHNOL JI Environ. Technol. PD NOV PY 1990 VL 11 IS 11 BP 1063 EP 1070 PG 8 WC Environmental Sciences SC Environmental Sciences & Ecology GA EK196 UT WOS:A1990EK19600008 ER PT J AU REED, RK STABENO, PJ AF REED, RK STABENO, PJ TI FLOW TRAJECTORIES IN THE BERING SEA - EVIDENCE FOR CHAOS SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article RP REED, RK (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,SEATTLE,WA 98115, USA. NR 7 TC 9 Z9 9 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD NOV PY 1990 VL 17 IS 12 BP 2141 EP 2144 DI 10.1029/GL017i012p02141 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100016 ER PT J AU OSHEROVICH, VA GARCIA, HA AF OSHEROVICH, VA GARCIA, HA TI ELECTRIC-CURRENT IN A UNIPOLAR SUNSPOT WITH AN UNTWISTED FIELD SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 NOAA, SPACE ENVIRONM LAB, BOULDER, CO 80303 USA. RP NASA, GODDARD SPACE FLIGHT CTR, PLANETARY SYST BRANCH, GREENBELT, MD 20771 USA. NR 18 TC 4 Z9 4 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 EI 1944-8007 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD NOV PY 1990 VL 17 IS 12 BP 2273 EP 2276 DI 10.1029/GL017i012p02273 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100049 ER PT J AU HOECKER, WH MACHTA, L AF HOECKER, WH MACHTA, L TI METEOROLOGICAL MODELING OF RADIOIODINE TRANSPORT AND DEPOSITION WITHIN THE CONTINENTAL UNITED-STATES SO HEALTH PHYSICS LA English DT Article RP HOECKER, WH (reprint author), NOAA, AIR RESOURCES LAB, SILVER SPRING, MD 20910 USA. NR 5 TC 7 Z9 7 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD NOV PY 1990 VL 59 IS 5 BP 603 EP 617 DI 10.1097/00004032-199011000-00011 PG 15 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA EE731 UT WOS:A1990EE73100012 PM 2211119 ER PT J AU BOUVILLE, A DREICER, M BECK, HL HOECKER, WH WACHHOLZ, BW AF BOUVILLE, A DREICER, M BECK, HL HOECKER, WH WACHHOLZ, BW TI MODELS OF RADIOIODINE TRANSPORT TO POPULATIONS WITHIN THE CONTINENTAL UNITED-STATES SO HEALTH PHYSICS LA English DT Article C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. US DOE, ENVIRONM MEASUREMENTS LAB, NEW YORK, NY 10014 USA. NOAA, AIR RESOURCES LAB, SILVER SPRING, MD 20910 USA. RP BOUVILLE, A (reprint author), NCI, RADIAT EFFECTS BRANCH, BETHESDA, MD 20892 USA. NR 33 TC 9 Z9 9 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD NOV PY 1990 VL 59 IS 5 BP 659 EP 668 DI 10.1097/00004032-199011000-00016 PG 10 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA EE731 UT WOS:A1990EE73100017 PM 2145245 ER PT J AU MA, LS HALL, JL AF MA, LS HALL, JL TI OPTICAL HETERODYNE SPECTROSCOPY ENHANCED BY AN EXTERNAL OPTICAL CAVITY - TOWARD IMPROVED WORKING STANDARDS SO IEEE JOURNAL OF QUANTUM ELECTRONICS LA English DT Article ID HELIUM-NEON LASER; SATURATION SPECTROSCOPY; ABSORPTION; IODINE; 612-NM AB We study the use of an external resonator to enhance sub-Doppler signals observable with the high sensitivity techniques of optical heterodyne spectroscopy. The case of modulation-transfer spectroscopy in a ring resonator is considered in detail. By exciting the I-127(2) resonance at 612 nm with a low-power He-Ne laser, we observed a S/N of 250:1 in a 10 kHz bandwidth. Used in an optimal control loop, this performance would provide a laser stability of 10 Hz at 1 s. Such a > hundredfold improvement in stability should lead to interesting increases in accuracy as well. C1 NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,DIV QUANTUM PHYS,BOULER,CO 80309. UNIV COLORADO,BOULDER,CO 80309. RP MA, LS (reprint author), E CHINA NORMAL UNIV,DEPT PHYS,SHANGHAI,PEOPLES R CHINA. NR 11 TC 49 Z9 56 U1 2 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9197 J9 IEEE J QUANTUM ELECT JI IEEE J. Quantum Electron. PD NOV PY 1990 VL 26 IS 11 BP 2006 EP 2012 DI 10.1109/3.62120 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA ET605 UT WOS:A1990ET60500019 ER PT J AU HEFNER, AR AF HEFNER, AR TI ANALYTICAL MODELING OF DEVICE CIRCUIT INTERACTIONS FOR THE POWER INSULATED GATE BIPOLAR-TRANSISTOR (IGBT) SO IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS LA English DT Article RP HEFNER, AR (reprint author), NATL INST STANDARDS & TECHNOL,DIV SEMICOND ELECTR,BLDG 229,ROOM B 310,GAITHERSBURG,MD 20899, USA. NR 19 TC 40 Z9 45 U1 0 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0093-9994 J9 IEEE T IND APPL JI IEEE Trans. Ind. Appl. PD NOV-DEC PY 1990 VL 26 IS 6 BP 995 EP 1005 DI 10.1109/28.62382 PG 11 WC Engineering, Multidisciplinary; Engineering, Electrical & Electronic SC Engineering GA EM077 UT WOS:A1990EM07700004 ER PT J AU DAYWITT, WC AF DAYWITT, WC TI 1ST-ORDER SYMMETRICAL MODES FOR A SLIGHTLY LOSSY COAXIAL TRANSMISSION-LINE SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES LA English DT Article RP DAYWITT, WC (reprint author), NATL INST STAND & TECHNOL,BOULDER,CO 80303, USA. NR 4 TC 20 Z9 20 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9480 J9 IEEE T MICROW THEORY JI IEEE Trans. Microw. Theory Tech. PD NOV PY 1990 VL 38 IS 11 BP 1644 EP 1650 DI 10.1109/22.60011 PG 7 WC Engineering, Electrical & Electronic SC Engineering GA ED789 UT WOS:A1990ED78900013 ER PT J AU DAYWITT, WC AF DAYWITT, WC TI DETERMINING ADAPTER EFFICIENCY BY ENVELOPE AVERAGING SWEPT FREQUENCY REFLECTION DATA SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES LA English DT Note RP DAYWITT, WC (reprint author), NATL INST STAND & TECHNOL,DIV ELECTROMAGNET FIELDS,325 BROADWAY,BOULDER,CO 80303, USA. NR 7 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9480 J9 IEEE T MICROW THEORY JI IEEE Trans. Microw. Theory Tech. PD NOV PY 1990 VL 38 IS 11 BP 1748 EP 1752 DI 10.1109/22.60027 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA ED789 UT WOS:A1990ED78900029 ER PT J AU SOOD, AK HERMAN, M TRIVEDI, MM WECHSLER, H AF SOOD, AK HERMAN, M TRIVEDI, MM WECHSLER, H TI COMPUTATIONAL PERSPECTIVE ON PERCEPTION, PLANNING, ACTION AND SYSTEMS INTEGRATION SO IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS LA English DT Article C1 NATL INST STAND & TECHNOL,DIV ROBOT SYST,GAITHERSBURG,MD 20899. RP SOOD, AK (reprint author), GEORGE MASON UNIV,DEPT COMP SCI,FAIRFAX,VA 22030, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9472 J9 IEEE T SYST MAN CYB JI IEEE Trans. Syst. Man Cybern. PD NOV-DEC PY 1990 VL 20 IS 6 BP 1241 EP 1244 PG 4 WC Computer Science, Cybernetics; Engineering, Electrical & Electronic SC Computer Science; Engineering GA EJ659 UT WOS:A1990EJ65900001 ER PT J AU OSKARD, DN HONG, TH SHAFFER, CA AF OSKARD, DN HONG, TH SHAFFER, CA TI REAL-TIME ALGORITHMS AND DATA-STRUCTURES FOR UNDERWATER MAPPING SO IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS LA English DT Letter C1 AMERICAN UNIV,DEPT COMP SCI & INFORMAT SYST,WASHINGTON,DC 20016. VIRGINIA POLYTECH INST & STATE UNIV,DEPT COMP SCI,BLACKSBURG,VA 24061. RP OSKARD, DN (reprint author), NATL INST STAND & TECHNOL,DIV ROBOT SYST,GAITHERSBURG,MD 20899, USA. NR 28 TC 8 Z9 8 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9472 J9 IEEE T SYST MAN CYB JI IEEE Trans. Syst. Man Cybern. PD NOV-DEC PY 1990 VL 20 IS 6 BP 1469 EP 1475 DI 10.1109/21.61217 PG 7 WC Computer Science, Cybernetics; Engineering, Electrical & Electronic SC Computer Science; Engineering GA EJ659 UT WOS:A1990EJ65900021 ER PT J AU WINELAND, DJ BERGQUIST, JC BOLLINGER, JJ ITANO, WM HEINZEN, DJ GILBERT, SL MANNEY, CH RAIZEN, MG AF WINELAND, DJ BERGQUIST, JC BOLLINGER, JJ ITANO, WM HEINZEN, DJ GILBERT, SL MANNEY, CH RAIZEN, MG TI PROGRESS AT NIST TOWARD ABSOLUTE FREQUENCY STANDARDS USING STORED IONS SO IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL LA English DT Article RP WINELAND, DJ (reprint author), NATL INST STAND & TECHNOL,DIV TIME & FREQUENCY,MAIL CODE 576,BOULDER,CO 80303, USA. NR 42 TC 56 Z9 58 U1 1 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0885-3010 J9 IEEE T ULTRASON FERR JI IEEE Trans. Ultrason. Ferroelectr. Freq. Control PD NOV PY 1990 VL 37 IS 6 BP 515 EP 523 DI 10.1109/58.63107 PG 9 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA EH785 UT WOS:A1990EH78500005 PM 18285072 ER PT J AU DAGAUT, P KURYLO, MJ AF DAGAUT, P KURYLO, MJ TI A FLASH-PHOTOLYSIS INVESTIGATION OF THE GAS-PHASE UV ABSORPTION-SPECTRUM AND SELF-REACTION KINETICS OF THE NEOPENTYLPEROXY RADICAL SO INTERNATIONAL JOURNAL OF CHEMICAL KINETICS LA English DT Article C1 NATL INST STANDARDS & TECHNOL,CTR TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899. RI Dagaut, Philippe/C-1709-2008; Kurylo, Michael/H-2201-2012 OI Dagaut, Philippe/0000-0003-4825-3288; NR 21 TC 7 Z9 7 U1 0 U2 0 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0538-8066 J9 INT J CHEM KINET JI Int. J. Chem. Kinet. PD NOV PY 1990 VL 22 IS 11 BP 1177 EP 1187 DI 10.1002/kin.550221107 PG 11 WC Chemistry, Physical SC Chemistry GA EE300 UT WOS:A1990EE30000006 ER PT J AU ASSEL, RA AF ASSEL, RA TI AN ICE-COVER CLIMATOLOGY FOR LAKE ERIE AND LAKE-SUPERIOR FOR THE WINTER SEASONS 1897-1898 TO 1982-1983 SO INTERNATIONAL JOURNAL OF CLIMATOLOGY LA English DT Article RP ASSEL, RA (reprint author), NOAA,GREAT LAKES ENVIRONM RES LAB,2205 COMMONWEALTH BLVD,ANN ARBOR,MI 48105, USA. NR 33 TC 21 Z9 22 U1 0 U2 2 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0899-8418 J9 INT J CLIMATOL JI Int. J. Climatol. PD NOV PY 1990 VL 10 IS 7 BP 731 EP 748 PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EJ948 UT WOS:A1990EJ94800006 ER PT J AU DOYLE, JR DOUGHTY, DA GALLAGHER, A AF DOYLE, JR DOUGHTY, DA GALLAGHER, A TI SILANE DISSOCIATION PRODUCTS IN DEPOSITION DISCHARGES SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NR 31 TC 74 Z9 74 U1 2 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD NOV 1 PY 1990 VL 68 IS 9 BP 4375 EP 4384 DI 10.1063/1.346186 PG 10 WC Physics, Applied SC Physics GA EH222 UT WOS:A1990EH22200002 ER PT J AU AESCHLIMANN, M SCHEINFEIN, M UNGURIS, J GREIDANUS, FJAM KLAHN, S AF AESCHLIMANN, M SCHEINFEIN, M UNGURIS, J GREIDANUS, FJAM KLAHN, S TI MAGNETIC-FIELD-MODULATED WRITTEN BITS IN TBFECO THIN-FILMS - TRANSMISSION ELECTRON-MICROSCOPY LORENTZ AND SCANNING ELECTRON-MICROSCOPY WITH POLARIZATION ANALYSIS STUDIES SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. PHILIPS RES LABS,5600 JA EINDHOVEN,NETHERLANDS. PHILIPS GMBH,FORSCHUNGSLAB HAMBURG,W-2000 HAMBURG,GERMANY. RI Aeschlimann, Martin/D-7141-2011; Unguris, John/J-3989-2014 OI Aeschlimann, Martin/0000-0003-3413-5029; NR 24 TC 5 Z9 5 U1 1 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD NOV 1 PY 1990 VL 68 IS 9 BP 4710 EP 4718 DI 10.1063/1.346151 PG 9 WC Physics, Applied SC Physics GA EH222 UT WOS:A1990EH22200049 ER PT J AU CLINE, JI TAATJES, CA LEONE, SR AF CLINE, JI TAATJES, CA LEONE, SR TI DIODE-LASER PROBING OF I-STAR(2P1/2) DOPPLER PROFILES - TIME EVOLUTION OF A FAST, ANISOTROPIC VELOCITY DISTRIBUTION IN A THERMAL BATH SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO,NIST,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. NR 40 TC 55 Z9 55 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 1 PY 1990 VL 93 IS 9 BP 6543 EP 6553 DI 10.1063/1.458970 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EG251 UT WOS:A1990EG25100041 ER PT J AU TAATJES, CA CLINE, JI LEONE, SR AF TAATJES, CA CLINE, JI LEONE, SR TI A GENERAL-METHOD FOR DOPPLER DETERMINATION OF CYLINDRICALLY SYMMETRICAL VELOCITY DISTRIBUTIONS - AN APPLICATION OF FOURIER-TRANSFORM DOPPLER SPECTROSCOPY SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. RP TAATJES, CA (reprint author), UNIV COLORADO,NIST,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 67 TC 38 Z9 38 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD NOV 1 PY 1990 VL 93 IS 9 BP 6554 EP 6559 DI 10.1063/1.458971 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EG251 UT WOS:A1990EG25100042 ER PT J AU DESER, C WALLACE, JM AF DESER, C WALLACE, JM TI LARGE-SCALE ATMOSPHERIC CIRCULATION FEATURES OF WARM AND COLD EPISODES IN THE TROPICAL PACIFIC SO JOURNAL OF CLIMATE LA English DT Article AB Ship observations of sea surface temperature (SST), sea level pressure and surface wind, and satellite measurements of outgoing longwave radiation (OLR) (an indicator of deep tropical convection) are used to describe the large-scale atmospheric circulation over the tropical Pacific during composite warm and cold episodes. Results are based on linear regression analysis between the circulation parameters and an index of SST in the tropical Pacific during the period 1946-85 (1974-89 for OLR). Warm episodes along the Peru coast (i.e., El Nino events) and basin-wide warmings associated with the Southern Oscillation are examined separately. Charts of the total as well as anomalous fields of SST, sea level pressure surface wind and OLR for both warm and cold episodes are presented. SST and surface wind anomalies associated with warm episodes are consistent with the results of Rasmusson and Carpenter (1982). El Nino events are characterized by strong positive SST anomalies along the coasts of Ecuador and Peru and along the equator eastward of 130-degrees-W, and by an equatorward expansion and intensification of the Inter Tropical Convergence Zone (ITCZ) over the eastern Pacific. Basin-wide warm episodes exhibit positive SST anomalies along the equator eastward of 170-degrees-E, a southward expansion and intensification of the ITCZ, and an eastward shift and strengthening of the Indonesian convective zone. The movements of the precipitation zones are in good agreement with anomalous large scale surface wind convergence. Meridional wind anomalies dominate the anomalous surface convergence throughout the tropical Pacific. Surface winds are consistent with the sea level pressure distribution, with down-gradient flow near the equator, and with Ekman balance in the subtropics. A center of below normal sea level pressure over the equatorial eastern Pacific, distinct from the negative pressure anomalies over the subtropical southeast Pacific, is observed during basin-wide warm episodes. This equatorial feature is highly correlated with local SST and appears to be a boundary layer phenomenon. There is a net increase in deep convection over the tropical Pacific during warm episodes. Enhanced convection in the ITCZ during warm years is not accompanied by a net increase in surface wind convergence. A comparison between precipitation and surface wind convergence suggests that moisture convergence extends through a deeper layer in the equatorial western Pacific than in the ITCZ over the eastern Pacific. The contrasting distributions of surface relative humidity, total cloudiness, and air-sea temperature difference over the eastern tropical Pacific during basin-wide warm and cold episodes are described in the context of boundary layer processes. RP DESER, C (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,CAMPUS BOX 216,BOULDER,CO 80309, USA. NR 0 TC 223 Z9 234 U1 4 U2 20 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD NOV PY 1990 VL 3 IS 11 BP 1254 EP 1281 DI 10.1175/1520-0442(1990)003<1254:LSACFO>2.0.CO;2 PG 28 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC723 UT WOS:A1990FC72300004 ER PT J AU MARTIN, JW EMBREE, E TSAO, W AF MARTIN, JW EMBREE, E TSAO, W TI NONOSMOTIC, DEFECT-CONTROLLED CATHODIC DISBONDMENT OF A COATING FROM A STEEL SUBSTRATE SO JOURNAL OF COATINGS TECHNOLOGY LA English DT Article RP MARTIN, JW (reprint author), US DEPT COMMERCE,NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 36 TC 12 Z9 16 U1 0 U2 2 PU FEDERATION SOC COATING TECH PI BLUE BELL PA 492 NORRISTOWN ROAD, BLUE BELL, PA 19422 SN 0361-8773 J9 J COATING TECHNOL JI J. Coat. Technol. PD NOV PY 1990 VL 62 IS 790 BP 25 EP 33 PG 9 WC Chemistry, Applied; Materials Science, Coatings & Films SC Chemistry; Materials Science GA EH872 UT WOS:A1990EH87200003 ER PT J AU MCFADDEN, GB MURRAY, BT BOISVERT, RF AF MCFADDEN, GB MURRAY, BT BOISVERT, RF TI ELIMINATION OF SPURIOUS EIGENVALUES IN THE CHEBYSHEV TAU SPECTRAL METHOD SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Note RP NATL INST STAND & TECHNOL, CTR COMP & APPL MATH, GAITHERSBURG, MD 20899 USA. RI McFadden, Geoffrey/A-7920-2008 OI McFadden, Geoffrey/0000-0001-6723-2103 NR 13 TC 24 Z9 24 U1 0 U2 2 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD NOV PY 1990 VL 91 IS 1 BP 228 EP 235 DI 10.1016/0021-9991(90)90012-P PG 8 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA EJ645 UT WOS:A1990EJ64500012 ER PT J AU BEARY, ES PAULSEN, PJ RAINS, TC EWING, KJ JAGANATHAN, J AGGARWAL, I AF BEARY, ES PAULSEN, PJ RAINS, TC EWING, KJ JAGANATHAN, J AGGARWAL, I TI APPROACHES TO THE ACCURATE CHARACTERIZATION OF HIGH-PURITY METAL FLUORIDES AND FLUORIDE GLASSES SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 3RD WORKSHOP ON PURIFICATION OF MATERIALS FOR CRYSTAL GROWTH AND GLASS PROCESSING CY OCT 31-NOV 02, 1989 CL ORLANDO, FL SP AMER ASSOC CRYSTAL GROWTH, DUPONT CO, WESTINGHOUSE SCI & TECHNOL CTR, NASA, LEWIS RES CTR C1 USN,RES LAB,WASHINGTON,DC 20375. RP BEARY, ES (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 30 TC 5 Z9 5 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD NOV PY 1990 VL 106 IS 1 BP 51 EP 60 DI 10.1016/0022-0248(90)90286-T PG 10 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA ED868 UT WOS:A1990ED86800008 ER PT J AU KRZYNOWEK, J MURPHY, J PARISER, ER CLIFTON, AB AF KRZYNOWEK, J MURPHY, J PARISER, ER CLIFTON, AB TI 6 NORTHWEST ATLANTIC FINFISH SPECIES AS A POTENTIAL FISH OIL SOURCE SO JOURNAL OF FOOD SCIENCE LA English DT Note C1 MIT,SEA GRANT PROGRAM,CAMBRIDGE,MA 02139. RP KRZYNOWEK, J (reprint author), NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,GLOUCESTER,MA, USA. NR 20 TC 5 Z9 5 U1 0 U2 0 PU INST FOOD TECHNOLOGISTS PI CHICAGO PA SUITE 300 221 N LASALLE ST, CHICAGO, IL 60601-1291 SN 0022-1147 J9 J FOOD SCI JI J. Food Sci. PD NOV-DEC PY 1990 VL 55 IS 6 BP 1743 EP 1744 DI 10.1111/j.1365-2621.1990.tb03614.x PG 2 WC Food Science & Technology SC Food Science & Technology GA EL978 UT WOS:A1990EL97800066 ER PT J AU ROBINS, LH FARABAUGH, EN FELDMAN, A AF ROBINS, LH FARABAUGH, EN FELDMAN, A TI LINE-SHAPE ANALYSIS OF THE RAMAN-SPECTRUM OF DIAMOND FILMS GROWN BY HOT-FILAMENT AND MICROWAVE-PLASMA CHEMICAL VAPOR-DEPOSITION SO JOURNAL OF MATERIALS RESEARCH LA English DT Article RP ROBINS, LH (reprint author), NATL INST STANDARDS & TECHNOL,MAT SCI & ENGN LAB,DIV CERAM,GAITHERSBURG,MD 20899, USA. NR 15 TC 77 Z9 77 U1 1 U2 3 PU MATERIALS RESEARCH SOCIETY PI PITTSBURGH PA 9800 MC KNIGHT ROAD SUITE 327, PITTSBURGH, PA 15237 SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD NOV PY 1990 VL 5 IS 11 BP 2456 EP 2468 DI 10.1557/JMR.1990.2456 PG 13 WC Materials Science, Multidisciplinary SC Materials Science GA EH576 UT WOS:A1990EH57600025 ER PT J AU HUBBELL, JH SRIVASTAVA, HM AF HUBBELL, JH SRIVASTAVA, HM TI CERTAIN THEOREMS ON BILATERAL GENERATING-FUNCTIONS INVOLVING HERMITE, LAGUERRE, AND GEGENBAUER POLYNOMIALS SO JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS LA English DT Article C1 UNIV VICTORIA,DEPT MATH & STAT,VICTORIA V8W 3P4,BC,CANADA. RP HUBBELL, JH (reprint author), NIST,CTR RADIAT RES,GAITHERSBURG,MD 20899, USA. RI Srivastava, Hari /N-9532-2013 OI Srivastava, Hari /0000-0002-9277-8092 NR 19 TC 8 Z9 9 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-247X J9 J MATH ANAL APPL JI J. Math. Anal. Appl. PD NOV 1 PY 1990 VL 152 IS 2 BP 343 EP 353 DI 10.1016/0022-247X(90)90069-R PG 11 WC Mathematics, Applied; Mathematics SC Mathematics GA EG608 UT WOS:A1990EG60800003 ER PT J AU DANOS, M AF DANOS, M TI ACCURACY-WEIGHTED VARIATIONAL PRINCIPLE FOR DEGENERATE CONTINUUM STATES SO JOURNAL OF MATHEMATICAL PHYSICS LA English DT Article RP DANOS, M (reprint author), NATL INST STANDARDS & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0022-2488 J9 J MATH PHYS JI J. Math. Phys. PD NOV PY 1990 VL 31 IS 11 BP 2588 EP 2591 DI 10.1063/1.529008 PG 4 WC Physics, Mathematical SC Physics GA EF122 UT WOS:A1990EF12200010 ER PT J AU FRASER, GT LOVAS, FJ SUENRAM, RD MATSUMURA, K AF FRASER, GT LOVAS, FJ SUENRAM, RD MATSUMURA, K TI MICROWAVE-SPECTRUM OF AR-H2O - DIPOLE-MOMENT, ISOTOPIC STUDIES, AND O-17 QUADRUPOLE COUPLING-CONSTANTS SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article RP FRASER, GT (reprint author), NATL INST STANDARDS & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899, USA. NR 50 TC 75 Z9 75 U1 0 U2 3 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD NOV PY 1990 VL 144 IS 1 BP 97 EP 112 DI 10.1016/0022-2852(90)90310-M PG 16 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EG494 UT WOS:A1990EG49400008 ER PT J AU MATSUMURA, K LOVAS, FJ SUENRAM, RD AF MATSUMURA, K LOVAS, FJ SUENRAM, RD TI STRUCTURES OF THE NH3-HCCCCH AND H2O-HCCCCH COMPLEXES BY FOURIER-TRANSFORM MICROWAVE SPECTROSCOPY SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article RP MATSUMURA, K (reprint author), NATL INST STANDARDS & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899, USA. NR 33 TC 16 Z9 16 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD NOV PY 1990 VL 144 IS 1 BP 123 EP 138 DI 10.1016/0022-2852(90)90312-E PG 16 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EG494 UT WOS:A1990EG49400010 ER PT J AU MAKI, AG WELLS, JS JENNINGS, DA AF MAKI, AG WELLS, JS JENNINGS, DA TI HETERODYNE FREQUENCY MEASUREMENTS OF CO AND OCS BEYOND 2100 CM-1 SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article C1 NATL INST STANDARDS & TECHNOL,DIV TIME & FREQUENCY,BOULDER,CO 80303. RP MAKI, AG (reprint author), UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195, USA. NR 18 TC 38 Z9 38 U1 1 U2 3 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD NOV PY 1990 VL 144 IS 1 BP 224 EP 229 DI 10.1016/0022-2852(90)90316-I PG 6 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EG494 UT WOS:A1990EG49400014 ER PT J AU MAKI, AG KURITSYN, YA AF MAKI, AG KURITSYN, YA TI HIGH-RESOLUTION MEASUREMENTS OF THE NU-2 BAND AND 2-NU-2-NU-2 BANDS OF S-34O-16(2) SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Note C1 NATL INST STANDARDS & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899. ACAD SCI USSR,INST SPECTROSCOPY,TROITSK 142092,USSR. NR 6 TC 1 Z9 1 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD NOV PY 1990 VL 144 IS 1 BP 242 EP 243 DI 10.1016/0022-2852(90)90319-L PG 2 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EG494 UT WOS:A1990EG49400017 ER PT J AU HARVEY, AH AF HARVEY, AH TI SUPERCRITICAL SOLUBILITY OF SOLIDS FROM NEAR-CRITICAL DILUTE-MIXTURE THEORY SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter RP HARVEY, AH (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899, USA. NR 28 TC 46 Z9 46 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD NOV 1 PY 1990 VL 94 IS 22 BP 8403 EP 8406 DI 10.1021/j100385a009 PG 4 WC Chemistry, Physical SC Chemistry GA EF991 UT WOS:A1990EF99100009 ER PT J AU MIELENZ, KD SAUNDERS, RD PARR, AC HSIA, JJ AF MIELENZ, KD SAUNDERS, RD PARR, AC HSIA, JJ TI THE 1990 NIST SCALES OF THERMAL RADIOMETRY SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Article DE BLACKBODY PHYSICS; CALIBRATIONS; GOLD POINT; MEASUREMENT SCALES; PHOTOMETRY; PYROMETRY; RADIOMETRY; RADIATION TEMPERATURE; TEMPERATURE SCALES ID THERMODYNAMIC TEMPERATURES; RANGE; 660-DEGREES-C; POINTS AB Following an absolute NIST measurement of the freezing temperature of gold and the adoption of the International Temperature Scale of 1990 (ITS-90), NIST has adopted new measurement scales for the calibration services based on thermal radiometry. In this paper, the new scales are defined and compared to the ITS-90, and the effects of the scale changes on NIST measurement services in optical pyrometry, radiometry, and photometry are assessed quantitatively. The changes in reported calibration values are within quoted uncertainties, and have resulted in small improvements in accuracy and better consistency with other radiometric scales. RP MIELENZ, KD (reprint author), NATL INST STAND & TECHNOL, DIV RADIOMETR PHYS, GAITHERSBURG, MD 20899 USA. NR 27 TC 19 Z9 19 U1 1 U2 2 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 621 EP 629 DI 10.6028/jres.095.050 PG 9 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000001 PM 28179797 ER PT J AU GEIST, J NOVOTNY, DB AF GEIST, J NOVOTNY, DB TI LOW-CONTRAST THERMAL RESOLUTION TEST TARGETS - A NEW APPROACH SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Article DE LOW-CONTRAST THERMAL RESOLUTION; RADIOMETRY; TARGET FABRICATION; THERMAL CONTRAST MODELING; THERMAL RADIATION; THERMAL RESOLUTION TARGET AB A new type of thermal resolution test target optimized to minimize the effects of lateral thermal gradients at low thermal contrast is described. This target consists of thin-film inconel heater strips over an etched silica substrate bonded to an aluminum heat sink. A simple, finite-difference model is used to study how variations in target construction and materials affect the generated thermal resolution test pattern. The construction, testing, and use of this type of target to extend the lower end of the contrast range of a conventional target are described. RP GEIST, J (reprint author), NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. RI Geist, Jon/D-5386-2013 NR 3 TC 1 Z9 1 U1 0 U2 1 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 631 EP 646 DI 10.6028/jres.095.051 PG 16 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000002 PM 28179798 ER PT J AU IGLESIAS, L CABEZA, MI KAUFMAN, V AF IGLESIAS, L CABEZA, MI KAUFMAN, V TI ANALYSIS OF THE SPECTRUM OF DOUBLY IONIZED MOLYBDENUM (MO-III) SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Article DE ENERGY LEVELS; MOLYBDENUM; PARAMETERS; SPECTRA; WAVELENGTHS AB The spectrum of doubly ionized molybdenum (Mo III) was produced in a sliding spark discharge and recorded photographically on the NIST 10.7-m normal incidence spectrograph in the 800-3250 angstrom spectral region. The analysis has led to the establishment of 76 levels of the interacting 4d4, 4d3 5s and 4d2 5s2 even configurations, 73 levels of the interacting 4d3 5d and 4d3 6s even configurations, and 181 levels of the interacting 4d3 5p and 4d2 5s5p odd configurations. Approximately 3100 lines have been classified as transitions between these experimentally determined levels. Comparison between the observed levels and those calculated from matrix diagonalizations with least-squares fitted parameters shows standard deviations of 44, 33, and 183 cm-1, respectively, for the levels of the three sets of configurations. C1 NATL INST STAND & TECHNOL, SPECT GRP, GAITHERSBURG, MD 20899 USA. RP IGLESIAS, L (reprint author), INST OPT, SERRANO 121, E-28006 MADRID, SPAIN. NR 5 TC 3 Z9 3 U1 0 U2 1 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 647 EP 688 DI 10.6028/jres.095.052 PG 42 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000003 PM 28179799 ER PT J AU RAINWATER, JC INGHAM, H LYNCH, JJ AF RAINWATER, JC INGHAM, H LYNCH, JJ TI VAPOR-LIQUID-EQUILIBRIUM OF CARBON-DIOXIDE WITH ISOBUTANE AND NORMAL-BUTANE - MODIFIED LEUNG-GRIFFITHS CORRELATION AND DATA EVALUATION SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Article DE BUTANE; CARBON DIOXIDE; CRITICAL REGION; DATA EVALUATION; VAPOR-LIQUID EQUILIBRIUM ID PHASE PROPERTIES; BINARY-SYSTEMS; HIGH-PRESSURE; THERMODYNAMIC PROPERTIES; CRITICAL-POINTS; CRITICAL REGION; MIXTURES; NITROGEN; TEMPERATURES; DENSITIES AB The Leung-Griffiths model as modified by Moldover and Rainwater is used to correlate high-pressure vapor-liquid equilibria of mixtures of carbon dioxide with n-butane and isobutane. Model correlations are compared against 10 independent experimental sources for these mixtures. Agreement is generally very good and comparable to mutual experimental discrepancies. The utility of the model as a data evaluation technique is demonstrated in that small suspect regions have been identified in certain data sets and the model predictions have been confirmed by subsequent measurements that agree with the model better than the earlier data. C1 UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA. RP RAINWATER, JC (reprint author), NATL INST STAND & TECHNOL, DIV THERMOPHYS, BOULDER, CO 80303 USA. NR 44 TC 6 Z9 6 U1 0 U2 1 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 701 EP 717 DI 10.6028/jres.095.054 PG 17 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000005 PM 28179801 ER PT J AU CAVANAGH, R AF CAVANAGH, R TI 50TH ANNUAL CONFERENCE ON PHYSICAL ELECTRONICS GAITHERSBURG, MD JUNE 11-13, 1990 SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Editorial Material RP CAVANAGH, R (reprint author), NATL INST STAND & TECHNOL, CTR ATOM MOLEC & OPT PHYS, DIV SURFACE SCI, GAITHERSBURG, MD 20899 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 719 EP 721 DI 10.6028/jres.095.055 PG 3 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000006 PM 28179802 ER PT J AU LENNON, EB AF LENNON, EB TI NORTH-AMERICAN-INTEGRATED-SERVICES-DIGITAL-NETWORK (ISDN) USERS FORUM (NIU-FORUM) GAITHERSBURG, MD AUGUST 6-9, 1990 SO JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY LA English DT Editorial Material RP LENNON, EB (reprint author), NATL INST STAND & TECHNOL, NATL COMP SYST LAB, GAITHERSBURG, MD 20899 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US GOVERNMENT PRINTING OFFICE PI WASHINGTON PA SUPERINTENDENT DOCUMENTS,, WASHINGTON, DC 20402-9325 USA SN 1044-677X J9 J RES NATL INST STAN JI J. Res. Natl. Inst. Stand. Technol. PD NOV-DEC PY 1990 VL 95 IS 6 BP 723 EP 724 DI 10.6028/jres.095.056 PG 2 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA FB260 UT WOS:A1990FB26000007 PM 28179803 ER PT J AU NIELSON, GC MCLINDEN, MO MORRISON, G AF NIELSON, GC MCLINDEN, MO MORRISON, G TI USE OF COMPUTER ALGEBRA TO LOCATE CRITICAL LOCI IN FLUID MIXTURES SO JOURNAL OF SYMBOLIC COMPUTATION LA English DT Article C1 NATL INST STAND & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899. RP NIELSON, GC (reprint author), NATL INST STAND & TECHNOL,DIV APPL & COMP MATH,GAITHERSBURG,MD 20899, USA. NR 9 TC 0 Z9 0 U1 2 U2 2 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0747-7171 J9 J SYMB COMPUT JI J. Symb. Comput. PD NOV PY 1990 VL 10 IS 5 BP 499 EP 508 DI 10.1016/S0747-7171(08)80058-2 PG 10 WC Computer Science, Theory & Methods; Mathematics, Applied SC Computer Science; Mathematics GA ER441 UT WOS:A1990ER44100008 ER PT J AU RODEL, J KELLY, JF LAWN, BR AF RODEL, J KELLY, JF LAWN, BR TI INSITU MEASUREMENTS OF BRIDGED CRACK INTERFACES IN THE SCANNING ELECTRON-MICROSCOPE SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article; Proceedings Paper CT SYMP AT THE 92ND ANNUAL MEETING OF THE AMERICAN CERAMIC SOC : ELECTRONIC STRUCTURE OF CERAMICS CY APR 23, 1990 CL DALLAS, TX SP AMER CERAM SOC RP RODEL, J (reprint author), NIST,DIV CERAM,GAITHERSBURG,MD 20899, USA. NR 26 TC 180 Z9 180 U1 3 U2 16 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 SN 0002-7820 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD NOV PY 1990 VL 73 IS 11 BP 3313 EP 3318 DI 10.1111/j.1151-2916.1990.tb06454.x PG 6 WC Materials Science, Ceramics SC Materials Science GA EK926 UT WOS:A1990EK92600027 ER PT J AU VANBRAMER, SE JOHNSTON, MV AF VANBRAMER, SE JOHNSTON, MV TI 10.5-EV PHOTOIONIZATION MASS-SPECTROMETRY OF ALIPHATIC-COMPOUNDS SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY LA English DT Article C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. NR 45 TC 48 Z9 49 U1 4 U2 9 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 1044-0305 J9 J AM SOC MASS SPECTR JI J. Am. Soc. Mass Spectrom. PD NOV-DEC PY 1990 VL 1 IS 6 BP 419 EP 426 DI 10.1016/1044-0305(90)85024-G PG 8 WC Chemistry, Analytical; Chemistry, Physical; Spectroscopy SC Chemistry; Spectroscopy GA EK490 UT WOS:A1990EK49000001 PM 24248975 ER PT J AU TAI, SSC CARGILE, N BARNES, CJ KIJAK, P AF TAI, SSC CARGILE, N BARNES, CJ KIJAK, P TI DETERMINATION OF PYRANTEL IN SWINE LIVER BY FLAME IONIZATION GAS-CHROMATOGRAPHY AND CONFIRMATION BY GAS-CHROMATOGRAPHY MASS-SPECTROMETRY SO JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS LA English DT Article C1 US FDA,DIV VET MED RES,BARC E,BLDG 328A,CTR RD,BELTSVILLE,MD 20705. NIST,DIV ORGAN ANALYT RES,GAITHERSBURG,MD 20899. BASF,RES TRIANGLE PK,NC 27709. FU PHS HHS [223-85-7036] NR 3 TC 4 Z9 4 U1 0 U2 1 PU AOAC INTERNATIONAL PI GAITHERSBURG PA 481 NORTH FREDRICK AVE, STE 500, GAITHERSBURG, MD 20877-2504 SN 0004-5756 J9 J ASSOC OFF ANA CHEM PD NOV-DEC PY 1990 VL 73 IS 6 BP 883 EP 886 PG 4 WC Chemistry, Analytical SC Chemistry GA EK589 UT WOS:A1990EK58900012 PM 2289920 ER PT J AU SARAVANAN, R AF SARAVANAN, R TI A MULTIWAVE MODEL OF THE QUASI-BIENNIAL OSCILLATION SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article C1 PRINCETON UNIV,ATMOSPHER & OCEAN SCI PROGRAM,PRINCETON,NJ 08544. RI Saravanan, Ramalingam/G-8879-2012 OI Saravanan, Ramalingam/0000-0002-0005-6907 NR 16 TC 29 Z9 30 U1 1 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD NOV 1 PY 1990 VL 47 IS 21 BP 2465 EP 2474 DI 10.1175/1520-0469(1990)047<2465:AMMOTQ>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN056 UT WOS:A1990EN05600001 ER PT J AU TING, MF HELD, IM AF TING, MF HELD, IM TI THE STATIONARY WAVE RESPONSE TO A TROPICAL SST ANOMALY IN AN IDEALIZED GCM SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article C1 PRINCETON UNIV,PROGRAM ATMOSPHER & OCEAN SCI,PRINCETON,NJ 08544. NOAA,GEOPHYS FLUID DYNAM LAB,PRINCETON,NJ. NR 28 TC 101 Z9 101 U1 1 U2 7 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD NOV 1 PY 1990 VL 47 IS 21 BP 2546 EP 2566 DI 10.1175/1520-0469(1990)047<2546:TSWRTA>2.0.CO;2 PG 21 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN056 UT WOS:A1990EN05600007 ER PT J AU OOYAMA, KV AF OOYAMA, KV TI A THERMODYNAMIC FOUNDATION FOR MODELING THE MOIST ATMOSPHERE SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article RP OOYAMA, KV (reprint author), NOAA,ATLANTIC OCEANOG & METEOROL LAB,HURRICANE RES DIV,4301 RICKENBACKER CAUSEWAY,MIAMI,FL 33149, USA. NR 23 TC 70 Z9 76 U1 1 U2 4 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD NOV 1 PY 1990 VL 47 IS 21 BP 2580 EP 2593 DI 10.1175/1520-0469(1990)047<2580:ATFFMT>2.0.CO;2 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN056 UT WOS:A1990EN05600009 ER PT J AU CHOI, SH DITTMANN, S TILFORD, CR AF CHOI, SH DITTMANN, S TILFORD, CR TI STABILIZATION TECHNIQUES FOR SPINNING ROTOR GAUGE RESIDUAL DRAG SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS LA English DT Article C1 KOREA STAND RES INST,TAEJON 305606,SOUTH KOREA. RP CHOI, SH (reprint author), NIST,CTR CHEM TECHNOL,GAITHERSBURG,MD 20899, USA. NR 8 TC 10 Z9 10 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0734-2101 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A-Vac. Surf. Films PD NOV-DEC PY 1990 VL 8 IS 6 BP 4079 EP 4085 DI 10.1116/1.576443 PG 7 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EJ415 UT WOS:A1990EJ41500031 ER PT J AU EHRLICH, CD TISON, SA HSIAO, HY WARD, DB AF EHRLICH, CD TISON, SA HSIAO, HY WARD, DB TI A STUDY OF THE LINEARITY OF TRANSFER LEAKS AND A HELIUM LEAK DETECTOR SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS LA English DT Article RP EHRLICH, CD (reprint author), NIST,DIV THERMOPHYS,GAITHERSBURG,MD 20899, USA. NR 6 TC 5 Z9 6 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0734-2101 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A-Vac. Surf. Films PD NOV-DEC PY 1990 VL 8 IS 6 BP 4086 EP 4091 DI 10.1116/1.576444 PG 6 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EJ415 UT WOS:A1990EJ41500032 ER PT J AU REED, RK AF REED, RK TI A YEAR-LONG OBSERVATION OF WATER EXCHANGE BETWEEN THE NORTH PACIFIC AND THE BERING SEA SO LIMNOLOGY AND OCEANOGRAPHY LA English DT Note ID ALASKAN STREAM AB Knowledge of the exchange of waters between the North Pacific Ocean and Bering Sea is limited because of the lack of reliable measurements. Existing estimates of flow through the major pass (Amchitka) in the Aleutian Islands were disparate and based on short-term data. A 1-yr series of direct current measurements was obtained in this pass, which revealed a northward flow of warm Alaskan Stream water into the Bering Sea. An estimate of volume transport gave 2-3 x 10(6) m3 s-1, which is 10-15% of the transport of the Alaskan Stream. RP REED, RK (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,7600 SAND POINT WAY NE,SEATTLE,WA 98115, USA. NR 10 TC 24 Z9 24 U1 0 U2 2 PU AMER SOC LIMNOLOGY OCEANOGRAPH PI LAWRENCE PA 810 EAST 10TH ST, LAWRENCE, KS 66044-8897 SN 0024-3590 J9 LIMNOL OCEANOGR JI Limnol. Oceanogr. PD NOV PY 1990 VL 35 IS 7 BP 1604 EP 1609 PG 6 WC Limnology; Oceanography SC Marine & Freshwater Biology; Oceanography GA EX805 UT WOS:A1990EX80500015 ER PT J AU STEIMLE, FW ZDANOWICZ, VS GADBOIS, DF AF STEIMLE, FW ZDANOWICZ, VS GADBOIS, DF TI METALS AND ORGANIC CONTAMINANTS IN NORTHWEST ATLANTIC DEEP-SEA TILEFISH TISSUES SO MARINE POLLUTION BULLETIN LA English DT Note C1 US DEPT COMMERCE, NOAA,NATL MARINE FISHERIES SERV,NEFC, GLOUCESTER LAB, GLOUCESTER, MA 01930 USA. RP US DEPT COMMERCE, NOAA, NATL MARINE FISHERIES SERV, NEFC, SANDY HOOK LAB, HIGHLANDS, NJ 07732 USA. NR 22 TC 24 Z9 25 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0025-326X EI 1879-3363 J9 MAR POLLUT BULL JI Mar. Pollut. Bull. PD NOV PY 1990 VL 21 IS 11 BP 530 EP 535 DI 10.1016/0025-326X(90)90301-N PG 6 WC Environmental Sciences; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA EN113 UT WOS:A1990EN11300013 ER PT J AU GRUSHKO, B STAFFORD, GR AF GRUSHKO, B STAFFORD, GR TI PHASE FORMATION IN ELECTRODEPOSITED AND THERMALLY ANNEALED AL-MN ALLOYS SO METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article C1 NIST,DIV MET,GAITHERSBURG,MD 20899. RP GRUSHKO, B (reprint author), TECHNION ISRAEL INST TECHNOL,DEPT MAT ENGN,HAIFA,ISRAEL. NR 14 TC 29 Z9 30 U1 0 U2 4 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0360-2133 J9 METALL TRANS A PD NOV PY 1990 VL 21 IS 11 BP 2869 EP 2879 DI 10.1007/BF02647207 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA EK546 UT WOS:A1990EK54600004 ER PT J AU CATTANEO, F CHIUEH, TH HUGHES, DW AF CATTANEO, F CHIUEH, TH HUGHES, DW TI A NEW TWIST TO THE SOLAR-CYCLE SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Note C1 UNIV COLORADO,DEPT ASTROPHYS PLANETARY & ATMOSPH SCI,BOULDER,CO 80309. UNIV CAMBRIDGE,DEPT APPL MATH & THEORET PHYS,CAMBRIDGE CB3 9EW,ENGLAND. RP CATTANEO, F (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 24 TC 5 Z9 5 U1 0 U2 0 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD NOV 1 PY 1990 VL 247 IS 1 BP P6 EP P9 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EE674 UT WOS:A1990EE67400017 ER PT J AU SASSEN, K GRUND, CJ SPINHIRNE, JD HARDESTY, MM ALVAREZ, JM AF SASSEN, K GRUND, CJ SPINHIRNE, JD HARDESTY, MM ALVAREZ, JM TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - A 5 LIDAR OVERVIEW OF CLOUD STRUCTURE AND EVOLUTION SO MONTHLY WEATHER REVIEW LA English DT Article ID OPTICAL-PROPERTIES; POLARIZATION; PHASE AB Optical remote sensing measurements of cirrus cloud properties were collected by one airborne and four ground-based lidar systems over a 32-h period during this case study from the First ISCCP (International Satellite Cloud Climatology Program) Regional Experiment (FIRE) Intensive Field Observation (IFO) program. The lidar systems were variously equipped to collect linear depolarization, intrinsically calibrated backscatter, and Doppler velocity information. Data presented here describe the temporal evolution and spatial distribution of cirrus clouds over an area encompassing southern and central Wisconsin. The cirrus cloud types include: (a) dissipating subvisual and "thin" fibrous cirrus cloud bands, (b) an isolated mesoscale uncinus complex (MUC), (c) a large-scale, deep cloud that developed into an organized cirrus structure within the lidar array, and (d) a series of intensifying mesoscale cirrus cloud masses. Although the cirrus frequently developed in the vertical from particle fallstreaks emanating from generating regions at or near cloud tops, glaciating supercooled (-30-degrees to -35-degrees-C) altocumulus clouds contributed to the production of ice mass at the base of the deep cirrus cloud, apparently even through riming, and other mechanisms involving evaporation, wave motions, and radiative effects are indicated. The generating regions ranged in scale from approximately 1.0-km cirrus uncinus cells, to organized MUC structures up to approximately 120 km across. C1 UNIV WISCONSIN,DEPT HIGH ENERGY PHYS,MADISON,WI 53706. NASA,GODDARD SPACE FLIGHT CTR,ENVIRONM SENSORS BRANCH,GREENBELT,MD 20771. NOAA,ENVIRONM RES LABS,WAVE PROPAGAT LAB,ATMOSPHER LIDAR PROGRAM,BOULDER,CO 80303. NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP SASSEN, K (reprint author), UNIV UTAH,DEPT METEOROL,SALT LAKE CITY,UT 84112, USA. RI Hardesty, Robert/H-9844-2013 NR 20 TC 62 Z9 62 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD NOV PY 1990 VL 118 IS 11 BP 2288 EP 2311 DI 10.1175/1520-0493(1990)118<2288:TOFICC>2.0.CO;2 PG 24 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000003 ER PT J AU GORCZYCA, T NORCROSS, DW AF GORCZYCA, T NORCROSS, DW TI CLOSE-COUPLING CALCULATION FOR THE 2-SIGMA+U STATE OF H2 SO PHYSICAL REVIEW A LA English DT Article C1 UNIV COLORADO,BOULDER,CO 80309. RP GORCZYCA, T (reprint author), NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 26 TC 10 Z9 10 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 1 PY 1990 VL 42 IS 9 BP 5132 EP 5138 DI 10.1103/PhysRevA.42.5132 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900011 ER PT J AU INDELICATO, P DESCLAUX, JP AF INDELICATO, P DESCLAUX, JP TI MULTICONFIGURATION DIRAC-FOCK CALCULATIONS OF TRANSITION ENERGIES WITH QED CORRECTIONS IN 3-ELECTRON IONS SO PHYSICAL REVIEW A LA English DT Article C1 UNIV PARIS 06,PHYS ATOM & NUCL LAB,F-75230 PARIS 05,FRANCE. CEN,DEPT RECH FONDAMENTALE,SERV PHYS ATOM,F-38041 GRENOBLE,FRANCE. RP INDELICATO, P (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. RI Indelicato, Paul/D-7636-2011 OI Indelicato, Paul/0000-0003-4668-8958 NR 42 TC 157 Z9 158 U1 1 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 1 PY 1990 VL 42 IS 9 BP 5139 EP 5149 DI 10.1103/PhysRevA.42.5139 PG 11 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900012 ER PT J AU ROSENBERG, L AF ROSENBERG, L TI N-PHOTON BREMSSTRAHLUNG IN THE SOFT-PHOTON APPROXIMATION SO PHYSICAL REVIEW A LA English DT Article C1 NATL INST STAND & TECHNOL,BOULDER,CO 80309. NYU,DEPT PHYS,NEW YORK,NY 10003. RP ROSENBERG, L (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 13 TC 2 Z9 2 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 1 PY 1990 VL 42 IS 9 BP 5319 EP 5327 DI 10.1103/PhysRevA.42.5319 PG 9 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900034 ER PT J AU SCHAUER, MM JEFFERTS, SR DUNN, GH AF SCHAUER, MM JEFFERTS, SR DUNN, GH TI NONRESONANT CHARGE-TRANSFER IN THE THRESHOLD REGION FOR HE-3++HE-4-REVERSIBLE-HE-3++HE+4+ SO PHYSICAL REVIEW A LA English DT Article C1 NATL INST STAND & TECHNOL,BOULDER,CO 80309. UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309. RP SCHAUER, MM (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 16 TC 8 Z9 8 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 1 PY 1990 VL 42 IS 9 BP 5332 EP 5337 DI 10.1103/PhysRevA.42.5332 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900036 ER PT J AU HAHN, TD WIESE, WL AF HAHN, TD WIESE, WL TI ATOMIC TRANSITION-PROBABILITY RATIOS BETWEEN SOME AR I 4S-4P AND 4S-5P TRANSITIONS SO PHYSICAL REVIEW A LA English DT Note C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. NR 17 TC 7 Z9 9 U1 1 U2 6 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 1 PY 1990 VL 42 IS 9 BP 5747 EP 5749 DI 10.1103/PhysRevA.42.5747 PG 3 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900096 ER PT J AU PETERSON, RL EKIN, JW AF PETERSON, RL EKIN, JW TI CRITICAL-CURRENT DIFFRACTION PATTERNS OF GRAIN-BOUNDARY JOSEPHSON WEAK LINKS SO PHYSICAL REVIEW B LA English DT Article RP PETERSON, RL (reprint author), NATL INST STANDARDS & TECHNOL,DIV ELECTROMAGNET TECHNOL,BOULDER,CO 80303, USA. NR 19 TC 32 Z9 32 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD NOV 1 PY 1990 VL 42 IS 13 BP 8014 EP 8018 DI 10.1103/PhysRevB.42.8014 PN A PG 5 WC Physics, Condensed Matter SC Physics GA EG488 UT WOS:A1990EG48800041 ER PT J AU THORPE, MF GARBOCZI, EJ AF THORPE, MF GARBOCZI, EJ TI ELASTIC PROPERTIES OF CENTRAL-FORCE NETWORKS WITH BOND-LENGTH MISMATCH SO PHYSICAL REVIEW B LA English DT Article C1 MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824. MICHIGAN STATE UNIV,CTR FUNDAMENTAL MAT RES,E LANSING,MI 48824. RP THORPE, MF (reprint author), NIST,DIV BLDG MAT,B348-226,GAITHERSBURG,MD 20899, USA. NR 27 TC 36 Z9 36 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD NOV 1 PY 1990 VL 42 IS 13 BP 8405 EP 8417 DI 10.1103/PhysRevB.42.8405 PN B PG 13 WC Physics, Condensed Matter SC Physics GA EG490 UT WOS:A1990EG49000018 ER PT J AU COHEN, ML PENN, DR AF COHEN, ML PENN, DR TI WEAK-VERSUS STRONG-COUPLING THEORY FOR BI2SR2CACU2O8 SO PHYSICAL REVIEW B LA English DT Note C1 UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720. NIST,GAITHERSBURG,MD 20899. RP COHEN, ML (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 10 TC 5 Z9 5 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD NOV 1 PY 1990 VL 42 IS 13 BP 8702 EP 8703 DI 10.1103/PhysRevB.42.8702 PN B PG 2 WC Physics, Condensed Matter SC Physics GA EG490 UT WOS:A1990EG49000070 ER PT J AU MAY, PT AF MAY, PT TI SPACED ANTENNA VERSUS DOPPLER RADARS - A COMPARISON OF TECHNIQUES REVISITED SO RADIO SCIENCE LA English DT Article ID VHF RADAR; MIDDLE ATMOSPHERE; TROPOSPHERIC VELOCITIES; WINDS; STRATOSPHERE; TURBULENCE; IRREGULARITIES; REFLECTION AB The Doppler beam-swinging (DBS) and the spaced antenna (SA) techniques for radar wind measurement are compared on theoretical and practical grounds. It is shown that the information content is similar for both techniques and that errors introduced by horizontal variations of the vertical wind field affect both equivalently. A radar equation for a bistatic radar with close transmitting and receiving antennas is derived, and it is shown that the backscattered power is proportional to an equivalent area. The equivalent area is equal to the antennas' physical area for a monostatic radar and is twice the area of the smallest antenna in the limit of one antenna being much larger than the other. Other factors affecting the techniques sensitivity and accuracy are discussed. VHF radars operating at about 50 MHz should give similar sensitivity using both techniques, but for UHF wind profilers the DBS method is preferable. C1 UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309. NR 33 TC 9 Z9 9 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0048-6604 J9 RADIO SCI JI Radio Sci. PD NOV-DEC PY 1990 VL 25 IS 6 BP 1111 EP 1119 DI 10.1029/RS025i006p01111 PG 9 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications GA EP194 UT WOS:A1990EP19400002 ER PT J AU FORAND, JL TIMMER, C WAHLIN, E DEPAOLA, BD DUNN, GH SWENSON, DR RINN, K AF FORAND, JL TIMMER, C WAHLIN, E DEPAOLA, BD DUNN, GH SWENSON, DR RINN, K TI A PROBE FOR REAL-TIME IMAGES OF PARTICLE BEAMS AND THEIR ANALYSES IN A MERGED-BEAMS APPARATUS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article C1 NATL INST STAND & TECHNOL,BOULDER,CO 80309. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. RP FORAND, JL (reprint author), UNIV COLORADO,NBS,JOINT INST LAB ASTROPHYS,BOULDER,CO 80302, USA. RI DePaola, Brett/I-3533-2013 OI DePaola, Brett/0000-0003-3409-671X NR 15 TC 22 Z9 22 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD NOV PY 1990 VL 61 IS 11 BP 3372 EP 3377 DI 10.1063/1.1141586 PG 6 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EH086 UT WOS:A1990EH08600008 ER PT J AU ROGERS, PSZ SANDARUSI, J AF ROGERS, PSZ SANDARUSI, J TI A COMPLETELY AUTOMATED FLOW, HEAT-CAPACITY, CALORIMETER FOR USE AT HIGH-TEMPERATURES AND PRESSURES SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article C1 NATL INST STAND & TECHNOL,DIV THERMOPHYS,BOULDER,CO 80303. RP ROGERS, PSZ (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,INC-7,MS-J514,LOS ALAMOS,NM 87545, USA. NR 10 TC 3 Z9 3 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD NOV PY 1990 VL 61 IS 11 BP 3440 EP 3446 DI 10.1063/1.1141599 PG 7 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EH086 UT WOS:A1990EH08600021 ER PT J AU MINTZ, MH SHUKER, P FINE, J AF MINTZ, MH SHUKER, P FINE, J TI DIRECT DETECTION OF ATOM VAPORIZATION BY LASER RESONANCE IONIZATION AS A PROBE OF GAS SURFACE CHEMISORPTION MECHANISMS SO SURFACE SCIENCE LA English DT Letter C1 NUCL RES CTR NEGEV,IL-84190 BEER SHEVA,ISRAEL. RP MINTZ, MH (reprint author), NIST,GAITHERSBURG,MD 20899, USA. NR 23 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD NOV PY 1990 VL 238 IS 1-3 BP L473 EP L477 DI 10.1016/0039-6028(90)90057-F PG 5 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA EK979 UT WOS:A1990EK97900008 ER PT J AU MUELLER, DR KURTZ, RL STOCKBAUER, RL MADEY, TE SHIH, A AF MUELLER, DR KURTZ, RL STOCKBAUER, RL MADEY, TE SHIH, A TI A PHOTOEMISSION-STUDY OF BAO OVERLAYERS ABSORBED ON W(110) AND THEIR INTERACTION WITH H2O, CO2, AND O2 SO SURFACE SCIENCE LA English DT Article C1 USN,RES LAB,WASHINGTON,DC 20375. RP MUELLER, DR (reprint author), NATL INST STANDARDS & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 38 TC 16 Z9 16 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD NOV PY 1990 VL 237 IS 1-3 BP 72 EP 86 DI 10.1016/0039-6028(90)90520-I PG 15 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA EH817 UT WOS:A1990EH81700014 ER PT J AU POWELL, AB CHESTER, AJ GOVONI, JJ WARLEN, SM AF POWELL, AB CHESTER, AJ GOVONI, JJ WARLEN, SM TI NUTRITIONAL CONDITION OF SPOT LARVAE ASSOCIATED WITH THE MISSISSIPPI RIVER PLUME SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY LA English DT Article ID LEIOSTOMUS-XANTHURUS; NORTH-CAROLINA; SEA; STARVATION; GROWTH; FISHES AB We examined morphological criteria to determine nutritional condition, assessed recent feeding activity by examining gut fullness, and examined recent growth patterns from otoliths to determine if the Mississippi River plume front enhances feeding opportunities for larvae of spot Leiostomus xanthurus. A greater percentage (35%) of starved larvae, as determined by morphological criteria, occurred at the plume front than well inside (19%) or well outside (15%) the plume. Considerable variability in the incidence of starvation occurred within and between stations, especially at the plume front. The majority of spot larvae, regardless of capture location, had only a small volume (< 0.050 mm3) of food in their guts. The proportion of larvae that had 0.050 mm3 or more food in their guts was equal at the plume front, well inside, or well outside the front. A low correlation (r = -0:56) between food volume and percent starvation, although statistically significant (P < 0.05), may be explained by the high variation in both variables and the different time scales of each. Gut fullness is a measure of feeding success on a scale of hours, whereas nutritional condition is a measure on a scale of days. There was minimal association between instantaneous growth rates, gut content volumes, and the degree of starvation. Larvae that exhibited the highest recent growth rate (last 3 d of life) were considerably larger for any given age than those with low rates. Our inability to demonstrate consistently that larvae have a nutritional advantage when associated with the Mississippi River plume may reflect the transitory and dynamic nature of the plume front. RP POWELL, AB (reprint author), NOAA,NATL MARINE FISHERIES SERV,SE FISHERIES CTR,BEAUFORT LAB,BEAUFORT,NC 28516, USA. NR 15 TC 15 Z9 15 U1 0 U2 0 PU AMER FISHERIES SOC PI BETHESDA PA 5410 GROSVENOR LANE SUITE 110, BETHESDA, MD 20814-2199 SN 0002-8487 J9 T AM FISH SOC JI Trans. Am. Fish. Soc. PD NOV PY 1990 VL 119 IS 6 BP 957 EP 965 DI 10.1577/1548-8659(1990)119<0957:NCOSLA>2.3.CO;2 PG 9 WC Fisheries SC Fisheries GA FG040 UT WOS:A1990FG04000003 ER PT J AU OLSON, DL SIEWERT, TA AF OLSON, DL SIEWERT, TA TI PRESENT CONSUMABLE TECHNOLOGY ADVANCES INTO THE 21ST-CENTURY SO WELDING JOURNAL LA English DT Article C1 NATL INST STANDARDS & TECHNOL,DIV MAT RELIABIL,BOULDER,CO. RP OLSON, DL (reprint author), COLORADO SCH MINES,CTR WELDING & JOINING RES,DEPT MET & MAT ENGN,GOLDEN,CO 80401, USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU AMER WELDING SOC PI MIAMI PA PO BOX 351040, MIAMI, FL 33135 SN 0043-2296 J9 WELD J JI Weld. J. PD NOV PY 1990 VL 69 IS 11 BP 37 EP 40 PG 4 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA EF798 UT WOS:A1990EF79800005 ER PT J AU MILLER, PJ ROGERS, SA SENEKOWITSCH, J ONEIL, SV LEONE, SR WERNER, HJ KNOWLES, PJ AF MILLER, PJ ROGERS, SA SENEKOWITSCH, J ONEIL, SV LEONE, SR WERNER, HJ KNOWLES, PJ TI MULTIREFERENCE-CONFIGURATION INTERACTION (MR-CI) CALCULATIONS ON HS2+ AND EXPERIMENTAL-OBSERVATION VIA ELECTRON-IMPACT IONIZATION OF H2S SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY LA English DT Article C1 UNIV COLORADO, DEPT CHEM & BIOCHEM, BOULDER, CO 80309 USA. UNIV BIELEFELD, FACHBEREICH CHEM, W-4800 BIELEFELD, GERMANY. UNIV SUSSEX, SCH CHEM & MOLEC SCI, BRIGHTON BN1 9QJ, E SUSSEX, ENGLAND. RP UNIV COLORADO, NATL INST STAND & TECHNOL, JOINT INST LAB ASTROPHYS, BOULDER, CO 80309 USA. RI Knowles, Peter/G-2985-2010; Werner, Hans-Joachim/G-9509-2011 OI Knowles, Peter/0000-0003-4657-6331; Werner, Hans-Joachim/0000-0002-0435-539X NR 74 TC 14 Z9 14 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1387-3806 EI 1873-2798 J9 INT J MASS SPECTROM JI Int. J. Mass Spectrom. PD OCT 31 PY 1990 VL 100 BP 505 EP 519 DI 10.1016/0168-1176(90)85092-G PG 15 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EL607 UT WOS:A1990EL60700031 ER PT J AU CASELLA, RC AF CASELLA, RC TI NONLOCAL PHASE-SHIFTS INDUCED BY STATIC ELECTRIC-FIELDS IN NEUTRON INTERFEROMETERS WHEN THE PATH-ENCLOSED CHARGE VANISHES SO PHYSICAL REVIEW LETTERS LA English DT Article RP CASELLA, RC (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 17 TC 32 Z9 32 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD OCT 29 PY 1990 VL 65 IS 18 BP 2217 EP 2220 DI 10.1103/PhysRevLett.65.2217 PG 4 WC Physics, Multidisciplinary SC Physics GA EE664 UT WOS:A1990EE66400002 ER PT J AU SUTRINA, SL REDDY, P SAIER, MH REIZER, J AF SUTRINA, SL REDDY, P SAIER, MH REIZER, J TI THE GLUCOSE PERMEASE OF BACILLUS-SUBTILIS IS A SINGLE POLYPEPTIDE-CHAIN THAT FUNCTIONS TO ENERGIZE THE SUCROSE PERMEASE SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article C1 UNIV CALIF SAN DIEGO,DEPT BIOL,C-016,LA JOLLA,CA 92093. CTR ADV RES BIOTECHNOL,ROCKVILLE,MD 20850. NATL INST STAND & TECHNOL,ROCKVILLE,MD 20850. FU NIAID NIH HHS [2R01 AI 14176, 5R01 AI 21702] NR 45 TC 79 Z9 80 U1 0 U2 0 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD OCT 25 PY 1990 VL 265 IS 30 BP 18581 EP 18589 PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA EE201 UT WOS:A1990EE20100084 PM 2120236 ER PT J AU SCHEINFEIN, MR RYAN, PJ UNGURIS, J PIERCE, DT CELOTTA, RJ AF SCHEINFEIN, MR RYAN, PJ UNGURIS, J PIERCE, DT CELOTTA, RJ TI 180-DEGREES SURFACE DOMAIN-WALL MAGNETIZATION PROFILES - COMPARISONS BETWEEN SCANNING ELECTRON-MICROSCOPY WITH POLARIZATION ANALYSIS MEASUREMENTS, MAGNETOOPTIC KERR MICROSCOPY MEASUREMENTS AND MICROMAGNETIC MODELS SO APPLIED PHYSICS LETTERS LA English DT Article RP SCHEINFEIN, MR (reprint author), NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. RI Unguris, John/J-3989-2014 NR 19 TC 6 Z9 6 U1 0 U2 7 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD OCT 22 PY 1990 VL 57 IS 17 BP 1817 EP 1819 DI 10.1063/1.104144 PG 3 WC Physics, Applied SC Physics GA ED608 UT WOS:A1990ED60800037 ER PT J AU GREENBLATT, GD ORLANDO, JJ BURKHOLDER, JB RAVISHANKARA, AR AF GREENBLATT, GD ORLANDO, JJ BURKHOLDER, JB RAVISHANKARA, AR TI ABSORPTION-MEASUREMENTS OF OXYGEN BETWEEN 330NM AND 1140NM SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 UNIV COLORADO, DEPT CHEM & BIOCHEM, BOULDER, CO 80309 USA. UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. RP GREENBLATT, GD (reprint author), NOAA, AERON LAB, 325 BROADWAY, BOULDER, CO 80303 USA. RI Burkholder, James/H-4914-2013; Ravishankara, Akkihebbal/A-2914-2011 NR 23 TC 310 Z9 319 U1 0 U2 17 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD OCT 20 PY 1990 VL 95 IS D11 BP 18577 EP 18582 DI 10.1029/JD095iD11p18577 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200014 ER PT J AU KAWA, SR FAHEY, DW SOLOMON, S BRUNE, WH PROFFITT, MH TOOHEY, DW ANDERSON, DE ANDERSON, LC CHAN, KR AF KAWA, SR FAHEY, DW SOLOMON, S BRUNE, WH PROFFITT, MH TOOHEY, DW ANDERSON, DE ANDERSON, LC CHAN, KR TI INTERPRETATION OF AIRCRAFT MEASUREMENTS OF NO, CLO, AND O3 IN THE LOWER STRATOSPHERE SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. PENN STATE UNIV, DEPT METEOROL, UNIVERSITY PK, PA 16802 USA. HARVARD UNIV, DEPT CHEM, CAMBRIDGE, MA 02138 USA. HARVARD UNIV, DEPT EARTH & PLANETARY SCI, CAMBRIDGE, MA 02138 USA. COMPUTAT PHYS INC, ANNANDALE, VA USA. UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. RP KAWA, SR (reprint author), NOAA, AERON LAB, 325 BROADWAY, BOULDER, CO 80303 USA. RI Toohey, Darin/A-4267-2008; Kawa, Stephan/E-9040-2012; Fahey, David/G-4499-2013 OI Toohey, Darin/0000-0003-2853-1068; Fahey, David/0000-0003-1720-0634 NR 58 TC 12 Z9 12 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD OCT 20 PY 1990 VL 95 IS D11 BP 18597 EP 18609 DI 10.1029/JD095iD11p18597 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200017 ER PT J AU ELLERBE, P COHEN, A WELCH, MJ WHITE, E AF ELLERBE, P COHEN, A WELCH, MJ WHITE, E TI DETERMINATION OF SERUM URIC-ACID BY ISOTOPE-DILUTION MASS-SPECTROMETRY AS A NEW CANDIDATE DEFINITIVE METHOD SO ANALYTICAL CHEMISTRY LA English DT Article RP ELLERBE, P (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 19 TC 31 Z9 37 U1 1 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD OCT 15 PY 1990 VL 62 IS 20 BP 2173 EP 2177 DI 10.1021/ac00219a004 PG 5 WC Chemistry, Analytical SC Chemistry GA ED635 UT WOS:A1990ED63500005 PM 2268051 ER PT J AU WATANABE, WO CLARK, JH DUNHAM, JB WICKLUND, RI OLLA, BL AF WATANABE, WO CLARK, JH DUNHAM, JB WICKLUND, RI OLLA, BL TI CULTURE OF FLORIDA RED TILAPIA IN MARINE CAGES - THE EFFECT OF STOCKING DENSITY AND DIETARY-PROTEIN ON GROWTH SO AQUACULTURE LA English DT Article C1 FSU MARINE LAB,CARIBBEAN MARINE RES CTR,SOPCHOPPY,FL 32358. HATFIELD MARINE SCI CTR,NATL MARINE FISHERIES SERV,NW & ALASKA FISHERIES CTR,NEWPORT,OR 97365. RP WATANABE, WO (reprint author), CARIBBEAN MARINE RES CTR,100 E 17TH ST,RIVIERA BEACH,FL 33404, USA. NR 22 TC 30 Z9 34 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0044-8486 J9 AQUACULTURE JI Aquaculture PD OCT 15 PY 1990 VL 90 IS 2 BP 123 EP 134 DI 10.1016/0044-8486(90)90336-L PG 12 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA ED596 UT WOS:A1990ED59600003 ER PT J AU TEKLE, E ASTUMIAN, RD CHOCK, PB AF TEKLE, E ASTUMIAN, RD CHOCK, PB TI ELECTROPERMEABILIZATION OF CELL-MEMBRANES - EFFECT OF THE RESTING MEMBRANE-POTENTIAL SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS LA English DT Article C1 NATL INST STAND & TECHNOL,DIV CHEM PROC METROL,GAITHERSBURG,MD 20899. RP TEKLE, E (reprint author), NHLBI,BIOCHEM LAB,METAB REGULAT SECT,BLDG 3,ROOM 202,BETHESDA,MD 20892, USA. NR 7 TC 71 Z9 73 U1 0 U2 4 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0006-291X J9 BIOCHEM BIOPH RES CO JI Biochem. Biophys. Res. Commun. PD OCT 15 PY 1990 VL 172 IS 1 BP 282 EP 287 DI 10.1016/S0006-291X(05)80206-2 PG 6 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA EC646 UT WOS:A1990EC64600043 PM 2222475 ER PT J AU BODAMMER, JE MURCHELANO, RA AF BODAMMER, JE MURCHELANO, RA TI CYTOLOGICAL STUDY OF VACUOLATED CELLS AND OTHER ABERRANT HEPATOCYTES IN WINTER FLOUNDER FROM BOSTON HARBOR SO CANCER RESEARCH LA English DT Article C1 NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,WOODS HOLE LAB,WOODS HOLE,MA 02543. RP BODAMMER, JE (reprint author), UNIV RHODE ISL,NOAA,COLL RESOURCE DEV,COOPERAT MARINE EDUC RES PROGRAM,KINGSTON,RI 02881, USA. NR 66 TC 31 Z9 31 U1 0 U2 0 PU AMER ASSOC CANCER RESEARCH PI PHILADELPHIA PA PUBLIC LEDGER BLDG, SUITE 816, 150 S. INDEPENDENCE MALL W., PHILADELPHIA, PA 19106 SN 0008-5472 J9 CANCER RES JI Cancer Res. PD OCT 15 PY 1990 VL 50 IS 20 BP 6744 EP 6756 PG 13 WC Oncology SC Oncology GA EC410 UT WOS:A1990EC41000053 PM 2208138 ER PT J AU LOVEJOY, CM NESBITT, DJ AF LOVEJOY, CM NESBITT, DJ TI MODE SPECIFIC INTERNAL AND DIRECT ROTATIONAL PREDISSOCIATION IN HEHF, HEDF, AND HEHCL - VANDERWAALS COMPLEXES IN THE WEAK BINDING LIMIT SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO 80309. RP LOVEJOY, CM (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 83 TC 86 Z9 88 U1 1 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. 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Res.-Oceans PD OCT 15 PY 1990 VL 95 IS C10 BP 17905 EP 17919 DI 10.1029/JC095iC10p17905 PG 15 WC Oceanography SC Oceanography GA ED734 UT WOS:A1990ED73400003 ER PT J AU AAGAARD, K ROACH, AT AF AAGAARD, K ROACH, AT TI ARCTIC-OCEAN SHELF EXCHANGE - MEASUREMENTS IN BARROW CANYON SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article RP AAGAARD, K (reprint author), NOAA,PACIFIC MARINE ENVIRONM LAB,7600 SAND POINT WAY NE,BLDG 3,SEATTLE,WA 98115, USA. NR 23 TC 76 Z9 76 U1 0 U2 4 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. 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RP BEGELMAN, MC (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 38 TC 98 Z9 98 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD OCT 10 PY 1990 VL 362 IS 1 BP 38 EP 51 DI 10.1086/169241 PN 1 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA851 UT WOS:A1990EA85100005 ER PT J AU LUO, D MCCRAY, R LOW, MMM AF LUO, D MCCRAY, R LOW, MMM TI X-RAYS FROM COLLIDING STELLAR WINDS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,AMES RES CTR,AMES RES LAB,ASTROPHYS BRANCH,MOFFETT FIELD,CA 94035. COLUMBIA UNIV,ASTROPHYS LAB,NEW YORK,NY 10027. RP LUO, D (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. OI Mac Low, Mordecai-Mark/0000-0003-0064-4060 NR 27 TC 122 Z9 122 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD OCT 10 PY 1990 VL 362 IS 1 BP 267 EP 273 DI 10.1086/169263 PN 1 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA851 UT WOS:A1990EA85100027 ER PT J AU HACKMAN, MC KING, GCP BILHAM, R AF HACKMAN, MC KING, GCP BILHAM, R TI THE MECHANICS OF THE SOUTH ICELAND SEISMIC ZONE SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA. INST PHYS GLOBE STRASBOURG, F-67084 STRASBOURG, FRANCE. UNIV COLORADO, DEPT GEOL SCI, BOULDER, CO 80309 USA. RP HACKMAN, MC (reprint author), UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOX 216, BOULDER, CO 80309 USA. NR 40 TC 31 Z9 31 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SOLID PD OCT 10 PY 1990 VL 95 IS B11 BP 17339 EP 17351 DI 10.1029/JB095iB11p17339 PG 13 WC Geosciences, Multidisciplinary SC Geology GA ED511 UT WOS:A1990ED51100005 ER PT J AU RICHTER, LJ BUNTIN, SA KING, DS CAVANAGH, RR AF RICHTER, LJ BUNTIN, SA KING, DS CAVANAGH, RR TI SURFACE-STATE-MEDIATED PHOTOCHEMISTRY - LASER-INDUCED DESORPTION OF NO FROM SI(111) SO PHYSICAL REVIEW LETTERS LA English DT Article RP RICHTER, LJ (reprint author), NATL INST STAND & TECHNOL,CTR ATOM MOLEC & OPT PHYS,GAITHERSBURG,MD 20899, USA. RI Richter, Lee/N-7730-2016 OI Richter, Lee/0000-0002-9433-3724 NR 27 TC 37 Z9 37 U1 1 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD OCT 8 PY 1990 VL 65 IS 15 BP 1957 EP 1960 DI 10.1103/PhysRevLett.65.1957 PG 4 WC Physics, Multidisciplinary SC Physics GA EB449 UT WOS:A1990EB44900032 ER PT J AU CHEN, HS AF CHEN, HS TI INFINITE ELEMENTS FOR WATER-WAVE RADIATION AND SCATTERING SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS LA English DT Article RP CHEN, HS (reprint author), NOAA,NATL WEATHER SERV,NATL METEOROL CTR,5200 AUTH RD,CTR OCEAN PROD,WASHINGTON,DC 20233, USA. NR 16 TC 20 Z9 21 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0271-2091 J9 INT J NUMER METH FL JI Int. J. Numer. Methods Fluids PD OCT 5 PY 1990 VL 11 IS 5 BP 555 EP 569 DI 10.1002/fld.1650110507 PG 15 WC Computer Science, Interdisciplinary Applications; Mathematics, Interdisciplinary Applications; Mechanics; Physics, Fluids & Plasmas SC Computer Science; Mathematics; Mechanics; Physics GA EB882 UT WOS:A1990EB88200006 ER PT J AU ALBRITTON, DL FEHSENFELD, FC TUCK, AF AF ALBRITTON, DL FEHSENFELD, FC TUCK, AF TI INSTRUMENTAL REQUIREMENTS FOR GLOBAL ATMOSPHERIC CHEMISTRY SO SCIENCE LA English DT Article RP ALBRITTON, DL (reprint author), NOAA,ENVIRONM RES LABS,AERON LAB,BOULDER,CO 80303, USA. RI Tuck, Adrian/F-6024-2011; Fehsenfeld, Frederick/I-4876-2013 OI Tuck, Adrian/0000-0002-2074-0538; NR 96 TC 21 Z9 21 U1 0 U2 1 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 5 PY 1990 VL 250 IS 4977 BP 75 EP 81 DI 10.1126/science.250.4977.75 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EB467 UT WOS:A1990EB46700024 PM 17808237 ER PT J AU SENGERS, JMHL GALLAGHER, JS AF SENGERS, JMHL GALLAGHER, JS TI GENERALIZED CORRESPONDING STATES AND HIGH-TEMPERATURE AQUEOUS-SOLUTIONS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article RP SENGERS, JMHL (reprint author), NATL INST STAND & TECHNOL,DIV THERMOPHYS,GAITHERSBURG,MD 20899, USA. NR 64 TC 10 Z9 10 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD OCT 4 PY 1990 VL 94 IS 20 BP 7913 EP 7922 DI 10.1021/j100383a032 PG 10 WC Chemistry, Physical SC Chemistry GA EB377 UT WOS:A1990EB37700032 ER PT J AU SHEFFIELD, AE CURRIE, LA KLOUDA, GA DONAHUE, DJ LINICK, TW JULL, AJT AF SHEFFIELD, AE CURRIE, LA KLOUDA, GA DONAHUE, DJ LINICK, TW JULL, AJT TI ACCELERATOR MASS-SPECTROMETRIC DETERMINATION OF C-14 IN THE LOW-POLARITY ORGANIC FRACTION OF ATMOSPHERIC PARTICLES SO ANALYTICAL CHEMISTRY LA English DT Article C1 UNIV MARYLAND, DEPT CHEM & BIOCHEM, COLLEGE PK, MD 20742 USA. NATL INST STAND & TECHNOL, CTR ANALYT CHEM, GAITHERSBURG, MD 20899 USA. UNIV ARIZONA, NSF FACIL RADIOISOTOPE ANALY, TUCSON, AZ 85721 USA. NR 40 TC 10 Z9 10 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD OCT 1 PY 1990 VL 62 IS 19 BP 2098 EP 2102 DI 10.1021/ac00218a010 PG 5 WC Chemistry, Analytical SC Chemistry GA EB096 UT WOS:A1990EB09600012 ER PT J AU GILLEN, G SIMONS, DS WILLIAMS, P AF GILLEN, G SIMONS, DS WILLIAMS, P TI MOLECULAR ION IMAGING AND DYNAMIC SECONDARY ION MASS-SPECTROMETRY OF ORGANIC-COMPOUNDS SO ANALYTICAL CHEMISTRY LA English DT Article C1 ARIZONA STATE UNIV,DEPT CHEM,TEMPE,AZ 85287. RP GILLEN, G (reprint author), NATL INST STAND & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 35 TC 65 Z9 65 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD OCT 1 PY 1990 VL 62 IS 19 BP 2122 EP 2130 DI 10.1021/ac00218a014 PG 9 WC Chemistry, Analytical SC Chemistry GA EB096 UT WOS:A1990EB09600016 PM 2256549 ER PT J AU ZHAO, YZ POST, MJ HARDESTY, RM AF ZHAO, YZ POST, MJ HARDESTY, RM TI RECEIVING EFFICIENCY OF MONOSTATIC PULSED COHERENT LIDARS .1. THEORY SO APPLIED OPTICS LA English DT Article C1 NOAA,ENVIRONM RES LAB,WAVE PROPAGAT LAB,BOULDER,CO 80303. RP ZHAO, YZ (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI NOAA,BOULDER,CO 80309, USA. RI Hardesty, Robert/H-9844-2013 NR 15 TC 33 Z9 36 U1 0 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD OCT 1 PY 1990 VL 29 IS 28 BP 4111 EP 4119 PG 9 WC Optics SC Optics GA EC961 UT WOS:A1990EC96100031 PM 20577354 ER PT J AU ZHAO, YZ POST, MJ HARDESTY, RM AF ZHAO, YZ POST, MJ HARDESTY, RM TI RECEIVING EFFICIENCY OF MONOSTATIC PULSED COHERENT LIDARS .2. APPLICATIONS SO APPLIED OPTICS LA English DT Article C1 NOAA,ENVIRONM RES LAB,WAVE PROPAGAT LAB,BOULDER,CO 80303. RP ZHAO, YZ (reprint author), UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309, USA. RI Hardesty, Robert/H-9844-2013 NR 9 TC 14 Z9 15 U1 1 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD OCT 1 PY 1990 VL 29 IS 28 BP 4120 EP 4132 PG 13 WC Optics SC Optics GA EC961 UT WOS:A1990EC96100032 PM 20577355 ER PT J AU POST, MJ CUPP, RE AF POST, MJ CUPP, RE TI OPTIMIZING A PULSED DOPPLER LIDAR SO APPLIED OPTICS LA English DT Article RP POST, MJ (reprint author), NOAA,WAVE PROPAGAT LAB,ATMOSPHER LIDAR PROGRAM,BOULDER,CO 80303, USA. NR 34 TC 115 Z9 116 U1 1 U2 6 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD OCT 1 PY 1990 VL 29 IS 28 BP 4145 EP 4158 PG 14 WC Optics SC Optics GA EC961 UT WOS:A1990EC96100034 PM 20577357 ER PT J AU AKMAN, SA DOROSHOW, JH DIZDAROGLU, M AF AKMAN, SA DOROSHOW, JH DIZDAROGLU, M TI BASE MODIFICATIONS IN PLASMID DNA CAUSED BY POTASSIUM-PERMANGANATE SO ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS LA English DT Note C1 NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,GAITHERSBURG,MD 20899. RP AKMAN, SA (reprint author), CITY HOPE NATL MED CTR,DEPT MED ONCOL & THERAPEUT RES,1500 E DUARTE RD,DUARTE,CA 91010, USA. FU NCI NIH HHS [CA 33572, CA 31788] NR 39 TC 29 Z9 29 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0003-9861 J9 ARCH BIOCHEM BIOPHYS JI Arch. Biochem. Biophys. PD OCT PY 1990 VL 282 IS 1 BP 202 EP 205 DI 10.1016/0003-9861(90)90105-8 PG 4 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA EB388 UT WOS:A1990EB38800027 PM 2221919 ER PT J AU KLOTE, JH AF KLOTE, JH TI THE PLAZA-HOTEL FIRE EXPERIMENTS SO ASHRAE JOURNAL-AMERICAN SOCIETY OF HEATING REFRIGERATING AND AIR-CONDITIONING ENGINEERS LA English DT Article RP KLOTE, JH (reprint author), NATL INST STAND & TECHNOL,CTR FIRE RES,BLDG FIRE PHYS GRP,GAITHERSBURG,MD, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEAT REFRIG AIR- CONDITIONING ENG INC PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 SN 0001-2491 J9 ASHRAE J JI ASHRAE J.-Am. Soc. Heat Refrig. Air-Cond. Eng. PD OCT PY 1990 VL 32 IS 10 BP 25 EP & PG 0 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA ED377 UT WOS:A1990ED37700007 ER PT J AU PRINJA, RK BARLOW, MJ HOWARTH, ID AF PRINJA, RK BARLOW, MJ HOWARTH, ID TI TERMINAL VELOCITIES FOR A LARGE SAMPLE OF O-STARS, B-SUPERGIANTS, AND WOLF-RAYET STARS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO. RP PRINJA, RK (reprint author), UNIV LONDON UNIV COLL,DEPT PHYS & ASTRON,GOWER ST,LONDON WC1E 6BT,ENGLAND. RI Barlow, Michael/A-5638-2009 OI Barlow, Michael/0000-0002-3875-1171 NR 67 TC 378 Z9 378 U1 0 U2 2 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD OCT 1 PY 1990 VL 361 IS 2 BP 607 EP 620 DI 10.1086/169224 PN 1 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DY969 UT WOS:A1990DY96900027 ER PT J AU ROBERTSON, B ASTUMIAN, RD AF ROBERTSON, B ASTUMIAN, RD TI MICHAELIS-MENTEN EQUATION FOR AN ENZYME IN AN OSCILLATING ELECTRIC-FIELD SO BIOPHYSICAL JOURNAL LA English DT Article RP ROBERTSON, B (reprint author), NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. NR 21 TC 42 Z9 42 U1 0 U2 4 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 EI 1542-0086 J9 BIOPHYS J JI Biophys. J. PD OCT PY 1990 VL 58 IS 4 BP 969 EP 974 PG 6 WC Biophysics SC Biophysics GA EB682 UT WOS:A1990EB68200015 PM 2248999 ER PT J AU KAIMAL, JC GAYNOR, JE ZIMMERMAN, HA ZIMMERMAN, GA AF KAIMAL, JC GAYNOR, JE ZIMMERMAN, HA ZIMMERMAN, GA TI MINIMIZING FLOW DISTORTION ERRORS IN A SONIC ANEMOMETER SO BOUNDARY-LAYER METEOROLOGY LA English DT Article C1 APPL TECHNOL INC,BOULDER,CO 80301. RP KAIMAL, JC (reprint author), NOAA,ERL,WAVE PROPAGAT LAB,BOULDER,CO 80303, USA. NR 11 TC 41 Z9 41 U1 0 U2 6 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0006-8314 J9 BOUND-LAY METEOROL JI Bound.-Layer Meteor. PD OCT PY 1990 VL 53 IS 1-2 BP 103 EP 115 DI 10.1007/BF00122466 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EE378 UT WOS:A1990EE37800009 ER PT J AU KALNAY, E KANAMITSU, M BAKER, WE AF KALNAY, E KANAMITSU, M BAKER, WE TI GLOBAL NUMERICAL WEATHER PREDICTION AT THE NATIONAL-METEOROLOGICAL-CENTER SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article RP KALNAY, E (reprint author), NOAA,NATL WEATHER SERV,NATL METEOROL CTR,WASHINGTON,DC 20233, USA. RI Kalnay, Eugenia/F-4393-2010; OI Kalnay, Eugenia/0000-0002-9984-9906 NR 56 TC 220 Z9 222 U1 0 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD OCT PY 1990 VL 71 IS 10 BP 1410 EP 1428 DI 10.1175/1520-0477(1990)071<1410:GNWPAT>2.0.CO;2 PG 19 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EE299 UT WOS:A1990EE29900001 ER PT J AU OHRING, G AF OHRING, G TI THE 1989 IAMAP SYMPOSIUM ON THE EARTHS RADIATION BUDGET SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Editorial Material RP OHRING, G (reprint author), NOAA,NATL ENVIRONM SATELLITE DATA & INFORMAT SERV,WASHINGTON,DC 20233, USA. RI Ohring, George/F-5616-2010 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD OCT PY 1990 VL 71 IS 10 BP 1455 EP 1457 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EE299 UT WOS:A1990EE29900004 ER PT J AU GUTMAN, GG AF GUTMAN, GG TI REVIEW OF THE WORKSHOP ON THE USE OF SATELLITE-DERIVED VEGETATION INDEXES IN WEATHER AND CLIMATE PREDICTION MODEL SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Editorial Material RP GUTMAN, GG (reprint author), UNIV MARYLAND,NOAA NESDIS,COOPERAT INST CLIMATE STUDIES,WORLD WEATHER BLDG 712,WASHINGTON,DC 20233, USA. NR 29 TC 10 Z9 12 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD OCT PY 1990 VL 71 IS 10 BP 1458 EP 1463 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EE299 UT WOS:A1990EE29900005 ER PT J AU THOMSON, CJ AF THOMSON, CJ TI THE MARKET FOR FISH-MEAL AND OIL IN THE UNITED-STATES - 1960-1988 AND FUTURE-PROSPECTS SO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS LA English DT Article AB Fish meal is used in the United States largely as a high-protein ingredient in poultry feed. Prices of domestic fish meal are determined by world market conditions for fish meal as well as other oil meals. Faced with limited fish meal supplies and little control over prices, the U.S. poultry industry has substituted other ingredients and made use of technological advances to satisfy the nation's growing demand for table birds. A number of factors have been identified that may significantly affect future demand, supply, and prices of fish meal and oil, both in the United States and abroad. These include (1) increases in world aquaculture production, (2) possible development of a domestic market for hydrogenated fish oil, (3) recent changes in the Alaska pollock fishery, (4) efforts to develop marketable products for direct human consumption from reduction species, and (5) the status of the Japanese and South American sardine fisheries. RP THOMSON, CJ (reprint author), NATL MARINE FISHERIES SERV,SW FISHERIES CTR,POB 271,LA JOLLA,CA 92038, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SCRIPPS INST OCEANOGRAPHY PI LA JOLLA PA A-003, LA JOLLA, CA 92093 SN 0575-3317 J9 CAL COOP OCEAN FISH JI Calif. Coop. Ocean. Fish. Invest. Rep. PD OCT PY 1990 VL 31 BP 124 EP 131 PG 8 WC Fisheries SC Fisheries GA EQ686 UT WOS:A1990EQ68600011 ER PT J AU HUNTER, JR BUTLER, JL KIMBRELL, C LYNN, EA AF HUNTER, JR BUTLER, JL KIMBRELL, C LYNN, EA TI BATHYMETRIC PATTERNS IN SIZE, AGE, SEXUAL MATURITY, WATER-CONTENT, AND CALORIC DENSITY OF DOVER SOLE, MICROSTOMUS-PACIFICUS SO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS LA English DT Article AB Ninety-eight percent of the spawning biomass of Dover sole, Microstomus pacificus, in central California waters live in a region of the continental slope between 640 and 1006 m (350-550 fath.) characterized by low oxygen concentrations (0.27-0.36 ml/l) and cold temperatures (5.9-degrees-C-3.2-degrees-C). Juvenile Dover sole settle on the continental shelf and gradually move down the slope over their lifetime, reaching the oxygen minimum zone as they become sexually mature. Fifty percent of Dover sole in central California reach sexual maturity when about 31 cm long and about seven years of age. The ontogenetic movement down the slope continues after sexual maturity and is accompanied by a marked increase in water content of the body and a consequent decrease in caloric density per gram wet weight. For example, caloric density decrease from about 86 kcal per gram wet weight (83% water) for a 275-mm fish living at 200-400 m, to 60.3 kcal per gram wet weight (90% water) for a fish 440 mm long living at about 900 m. Female Dover sole may live as long as 53 years, and males 58 years. Water content appears to be a function of age as well as length and depth. RP HUNTER, JR (reprint author), NATL MARINE FISHERIES SERV,SW FISHERIES CTR,POB 271,LA JOLLA,CA 92038, USA. NR 0 TC 35 Z9 35 U1 0 U2 0 PU SCRIPPS INST OCEANOGRAPHY PI LA JOLLA PA A-003, LA JOLLA, CA 92093 SN 0575-3317 J9 CAL COOP OCEAN FISH JI Calif. Coop. Ocean. Fish. Invest. Rep. PD OCT PY 1990 VL 31 BP 132 EP 144 PG 13 WC Fisheries SC Fisheries GA EQ686 UT WOS:A1990EQ68600012 ER PT J AU SMITH, PE AF SMITH, PE TI MONITORING INTERANNUAL CHANGES IN SPAWNING AREA OF PACIFIC SARDINE (SARDINOPS-SAGAX) SO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS LA English DT Article AB It is easier to monitor the spawning area of the Pacific sardine than to mount a full-scale effort to precisely estimate spawning biomass. Monitoring the spawning area may be particularly economical when the sardine is extremely rare or extremely abundant. Such imprecise estimates will probably not answer the management question of whether or not to set a specific biomass quota. The spawning area estimate is a candidate - with aerial surveys, scale sedimentation rates, and acoustic-trawl surveys - for use in interpolating between years when the more precise SWFC daily egg production method is used. RP SMITH, PE (reprint author), NATL MARINE FISHERIES SERV,SW FISHERIES CTR,POB 271,LA JOLLA,CA 92038, USA. NR 0 TC 18 Z9 18 U1 1 U2 1 PU SCRIPPS INST OCEANOGRAPHY PI LA JOLLA PA A-003, LA JOLLA, CA 92093 SN 0575-3317 J9 CAL COOP OCEAN FISH JI Calif. Coop. Ocean. Fish. Invest. Rep. PD OCT PY 1990 VL 31 BP 145 EP 151 PG 7 WC Fisheries SC Fisheries GA EQ686 UT WOS:A1990EQ68600013 ER PT J AU DEW, CB AF DEW, CB TI BEHAVIORAL ECOLOGY OF PODDING RED KING CRAB, PARALITHODES-CAMTSCHATICA SO CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES LA English DT Article RP DEW, CB (reprint author), NATL MARINE FISHERIES SERV,NW & ALASKA FISHERIES CTR,POB 1638,KODIAK,AK 99615, USA. NR 19 TC 60 Z9 61 U1 1 U2 4 PU NATL RESEARCH COUNCIL CANADA PI OTTAWA PA RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADA SN 0706-652X J9 CAN J FISH AQUAT SCI JI Can. J. Fish. Aquat. Sci. PD OCT PY 1990 VL 47 IS 10 BP 1944 EP 1958 DI 10.1139/f90-219 PG 15 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA EC803 UT WOS:A1990EC80300010 ER PT J AU PONGANIS, PJ PONGANIS, EP PONGANIS, KV KOOYMAN, GL GENTRY, RL TRILLMICH, F AF PONGANIS, PJ PONGANIS, EP PONGANIS, KV KOOYMAN, GL GENTRY, RL TRILLMICH, F TI SWIMMING VELOCITIES IN OTARIIDS SO CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE LA English DT Article C1 MICROMONITORS,SAN JOSE,CA 95126. NATL MARINE FISHERIES SERV,NATL MARINE MAMMAL LAB,SEATTLE,WA 98115. MAX PLANCK INST VERHALTENSPHYSIOL,WICKLER ABT,W-8131 SEEWIESEN,GERMANY. RP PONGANIS, PJ (reprint author), SCRIPPS INST OCEANOG,PHYSIOL RES LAB A-004,LA JOLLA,CA 92037, USA. NR 16 TC 64 Z9 70 U1 0 U2 1 PU NATL RESEARCH COUNCIL CANADA PI OTTAWA PA RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADA SN 0008-4301 J9 CAN J ZOOL JI Can. J. Zool.-Rev. Can. Zool. PD OCT PY 1990 VL 68 IS 10 BP 2105 EP 2112 DI 10.1139/z90-293 PG 8 WC Zoology SC Zoology GA EF554 UT WOS:A1990EF55400006 ER PT J AU MARGOLIS, SA PAULE, RC ZIEGLER, RG AF MARGOLIS, SA PAULE, RC ZIEGLER, RG TI ASCORBIC AND DEHYDROASCORBIC ACIDS MEASURED IN PLASMA PRESERVED WITH DITHIOTHREITOL OR METAPHOSPHORIC ACID SO CLINICAL CHEMISTRY LA English DT Article C1 NCI,DIV CANC ETIOL,EPIDEMIOL & BIOSTAT PROGRAM,BETHESDA,MD 20892. RP MARGOLIS, SA (reprint author), NATL INST STAND & TECHNOL,NATL MEASUREMENT LAB,CTR ANALYT CHEM,DIV ORGAN ANALYT CHEM,GAITHERSBURG,MD 20899, USA. FU NCI NIH HHS [Y01-CP9-0506] NR 15 TC 54 Z9 55 U1 0 U2 1 PU AMER ASSOC CLINICAL CHEMISTRY PI WASHINGTON PA 2101 L STREET NW, SUITE 202, WASHINGTON, DC 20037-1526 SN 0009-9147 J9 CLIN CHEM JI Clin. Chem. PD OCT PY 1990 VL 36 IS 10 BP 1750 EP 1755 PG 6 WC Medical Laboratory Technology SC Medical Laboratory Technology GA EE054 UT WOS:A1990EE05400008 PM 2208649 ER PT J AU LIPSCHULTZ, F WOFSY, SC WARD, BB CODISPOTI, LA FRIEDRICH, G ELKINS, JW AF LIPSCHULTZ, F WOFSY, SC WARD, BB CODISPOTI, LA FRIEDRICH, G ELKINS, JW TI BACTERIAL TRANSFORMATIONS OF INORGANIC NITROGEN IN THE OXYGEN-DEFICIENT WATERS OF THE EASTERN TROPICAL SOUTH-PACIFIC OCEAN SO DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS LA English DT Article C1 HARVARD UNIV, CTR EARTH & PLANETARY PHYS, CAMBRIDGE, MA 02138 USA. MONTEREY BAY AQUARIUM RES INST, PACIFIC GROVE, CA 93950 USA. NOAA, BOULDER, CO 80303 USA. UNIV CALIF SANTA CRUZ, INST MARINE SCI, SANTA CRUZ, CA 95064 USA. OI Lipschultz, Fred/0000-0003-1634-6754 NR 76 TC 111 Z9 112 U1 1 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0198-0149 J9 DEEP-SEA RES PD OCT PY 1990 VL 37 IS 10 BP 1513 EP + DI 10.1016/0198-0149(90)90060-9 PG 0 WC Oceanography SC Oceanography GA EM141 UT WOS:A1990EM14100001 ER PT J AU COWEN, JP MASSOTH, GJ FEELY, RA AF COWEN, JP MASSOTH, GJ FEELY, RA TI SCAVENGING RATES OF DISSOLVED MANGANESE IN A HYDROTHERMAL VENT PLUME SO DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS LA English DT Article C1 NOAA,PACIFIC MARINE ENVIRONM LAB,SEATTLE,WA 98115. RP COWEN, JP (reprint author), UNIV HAWAII,HAWAII INST GEOPHYS,1000 POPE RD,HONOLULU,HI 96822, USA. NR 60 TC 89 Z9 89 U1 0 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0198-0149 J9 DEEP-SEA RES PD OCT PY 1990 VL 37 IS 10 BP 1619 EP 1637 DI 10.1016/0198-0149(90)90065-4 PG 19 WC Oceanography SC Oceanography GA EM141 UT WOS:A1990EM14100006 ER PT J AU DEVRIES, DA GRIMES, CB LANG, KL WHITE, DB AF DEVRIES, DA GRIMES, CB LANG, KL WHITE, DB TI AGE AND GROWTH OF KING AND SPANISH MACKEREL LARVAE AND JUVENILES FROM THE GULF OF MEXICO AND UNITED-STATES SOUTH-ATLANTIC BIGHT SO ENVIRONMENTAL BIOLOGY OF FISHES LA English DT Article C1 S CAROLINA WILDLIFE & MARINE RESOURCES DEPT,MARINE RESOURCES RES INST,CHARLESTON,SC 29412. RP DEVRIES, DA (reprint author), NATL MARINE FISHERIES SERV,SE FISHERIES CTR,3500 DELWOOD BEACH RD,PANAMA CITY,FL 32407, USA. NR 26 TC 42 Z9 42 U1 1 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0378-1909 J9 ENVIRON BIOL FISH JI Environ. Biol. Fishes PD OCT PY 1990 VL 29 IS 2 BP 135 EP 143 PG 9 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA EA091 UT WOS:A1990EA09100006 ER PT J AU WALLINGTON, TJ SIEGL, WO LIU, RZ ZHANG, ZY HUIE, RE KURYLO, MJ AF WALLINGTON, TJ SIEGL, WO LIU, RZ ZHANG, ZY HUIE, RE KURYLO, MJ TI THE ATMOSPHERIC REACTIVITY OF ALPHA-METHYLTETRAHYDROFURAN SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article C1 NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,DIV CHEM KINET,GAITHERSBURG,MD 20899. RP WALLINGTON, TJ (reprint author), FORD MOTOR CO,POB 2053,DEARBORN,MI 48121, USA. RI Huie, Robert/A-5645-2010; Kurylo, Michael/H-2201-2012 NR 23 TC 4 Z9 4 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD OCT PY 1990 VL 24 IS 10 BP 1596 EP 1599 DI 10.1021/es00080a022 PG 4 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA EA646 UT WOS:A1990EA64600027 ER PT J AU ROSEN, RD SALSTEIN, DA MILLER, AJ AF ROSEN, RD SALSTEIN, DA MILLER, AJ TI ON THE QUALITY OF EDDY HEAT-FLUX CALCULATIONS IN THE VICINITY OF THE ANTARCTIC LOWER STRATOSPHERE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 NOAA,NATL WEATHER SERV,NATL METEOROL CTR,CTR CLIMATE ANAL,WASHINGTON,DC 20233. RP ROSEN, RD (reprint author), ATMOSPHER & ENVIRONM RES INC,840 MEM DR,CAMBRIDGE,MA 02139, USA. NR 8 TC 0 Z9 0 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD OCT PY 1990 VL 17 IS 11 BP 1901 EP 1904 DI 10.1029/GL017i011p01901 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800025 ER PT J AU BROCCOLI, AJ MANABE, S AF BROCCOLI, AJ MANABE, S TI CAN EXISTING CLIMATE MODELS BE USED TO STUDY ANTHROPOGENIC CHANGES IN TROPICAL CYCLONE CLIMATE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article RP BROCCOLI, AJ (reprint author), PRINCETON UNIV,NOAA,GEOPHYS FLUID DYNAM LAB,POB 308,PRINCETON,NJ 08542, USA. RI Broccoli, Anthony/D-9186-2014 OI Broccoli, Anthony/0000-0003-2619-1434 NR 16 TC 104 Z9 108 U1 0 U2 9 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD OCT PY 1990 VL 17 IS 11 BP 1917 EP 1920 DI 10.1029/GL017i011p01917 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800029 ER PT J AU KARL, TR HEIM, RR AF KARL, TR HEIM, RR TI ARE DROUGHTS BECOMING MORE FREQUENT OR SEVERE IN THE UNITED-STATES SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article RP KARL, TR (reprint author), NOAA,NATL CLIMAT DATA CTR,FED BLDG,ASHEVILLE,NC 28801, USA. NR 22 TC 20 Z9 20 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD OCT PY 1990 VL 17 IS 11 BP 1921 EP 1924 DI 10.1029/GL017i011p01921 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800030 ER PT J AU KARL, TR STEURER, PM AF KARL, TR STEURER, PM TI INCREASED CLOUDINESS IN THE UNITED-STATES DURING THE 1ST-HALF OF THE 20TH-CENTURY - FACT OR FICTION SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article RP KARL, TR (reprint author), NOAA,NATL CLIMAT DATA CTR,PED BLDG,ASHEVILLE,NC 28801, USA. NR 10 TC 57 Z9 62 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD OCT PY 1990 VL 17 IS 11 BP 1925 EP 1928 DI 10.1029/GL017i011p01925 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800031 ER PT J AU WESTWATER, ER SNIDER, JB FALLS, MJ AF WESTWATER, ER SNIDER, JB FALLS, MJ TI GROUND-BASED RADIOMETRIC OBSERVATIONS OF ATMOSPHERIC EMISSION AND ATTENUATION AT 20.6, 31.65, AND 90.0 GHZ - A COMPARISON OF MEASUREMENTS AND THEORY SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article RP WESTWATER, ER (reprint author), NOAA,ENVIRONM RES LABS,WAVE PROPAGAT LAB,BOULDER,CO 80303, USA. NR 19 TC 77 Z9 77 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD OCT PY 1990 VL 38 IS 10 BP 1569 EP 1580 DI 10.1109/8.59770 PG 12 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EA874 UT WOS:A1990EA87400009 ER PT J AU HELLWIG, H AF HELLWIG, H TI THE IMPORTANCE OF MEASUREMENT IN TECHNOLOGY-BASED COMPETITION SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. NR 6 TC 6 Z9 6 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD OCT PY 1990 VL 39 IS 5 BP 685 EP 688 DI 10.1109/19.58608 PG 4 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA DZ582 UT WOS:A1990DZ58200001 ER PT J AU Hefner, AR AF Hefner, Allen R., Jr. TI An Improved Understanding for the Transient Operation of the Power Insulated Gate Bipolar Transistor (IGBT) SO IEEE TRANSACTIONS ON POWER ELECTRONICS LA English DT Article ID ANALYTICAL-MODEL; DEVICE; COMFET; LIGBT AB It is shown that a non-quasi-static analysis must be used to describe the transient current and voltage waveforms of the IGBT. The non-quasi-static analysis is necessary because the transport of electrons and holes are coupled for the low-gain, high-level injection conditions, and because the quasi-neutral base width changes faster than the base transit speed for typical load circuit conditions. To verify that both of these non-quasi-static effects must be included, the predictions of the quasi-static and non-quasi-static models are compared with measured current and voltage switching waveforms. The comparisons are performed for different load circuit conditions and for different device base lifetimes. C1 [Hefner, Allen R., Jr.] NIST, US Dept Commerce, Div Semicond Elect, Gaithersburg, MD 20899 USA. RP Hefner, AR (reprint author), NIST, US Dept Commerce, Div Semicond Elect, Gaithersburg, MD 20899 USA. NR 19 TC 68 Z9 69 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8993 EI 1941-0107 J9 IEEE T POWER ELECTR JI IEEE Trans. Power Electron. PD OCT PY 1990 VL 5 IS 4 BP 459 EP 468 DI 10.1109/63.60690 PG 10 WC Engineering, Electrical & Electronic SC Engineering GA V43AB UT WOS:000209653200011 ER PT J AU TURK, GC KINGSTON, HM AF TURK, GC KINGSTON, HM TI LASER-ENHANCED IONIZATION SPECTROMETRY FOLLOWING MATRIX MODIFICATION BY AUTOMATED CHELATION CHROMATOGRAPHY FOR THE ANALYSIS OF BIOLOGICAL AND ENVIRONMENTAL REFERENCE MATERIALS SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY LA English DT Article RP TURK, GC (reprint author), NATL INST STAND & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 18 TC 11 Z9 11 U1 0 U2 0 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0267-9477 J9 J ANAL ATOM SPECTROM JI J. Anal. At. Spectrom. PD OCT PY 1990 VL 5 IS 7 BP 595 EP 601 DI 10.1039/ja9900500595 PG 7 WC Chemistry, Analytical; Spectroscopy SC Chemistry; Spectroscopy GA EE787 UT WOS:A1990EE78700002 ER PT J AU MILDNER, DFR CARPENTER, JM AF MILDNER, DFR CARPENTER, JM TI IMPROVEMENTS TO THE CHEBYSHEV EXPANSION OF ATTENUATION CORRECTION FACTORS FOR CYLINDRICAL SAMPLES SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article C1 ARGONNE NATL LAB,INTENSE PULSED NEUTRON SOURCE,ARGONNE,IL 60439. RP MILDNER, DFR (reprint author), NATL INST STAND & TECHNOL,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD OCT 1 PY 1990 VL 23 BP 378 EP 386 DI 10.1107/S0021889890005258 PN 5 PG 9 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA ED749 UT WOS:A1990ED74900006 ER PT J AU JEMIAN, PR LONG, GG AF JEMIAN, PR LONG, GG TI SILICON PHOTODIODE DETECTOR FOR SMALL-ANGLE X-RAY-SCATTERING SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Note C1 NATL INST STAND & TECHNOL,DIV CERAM,GAITHERSBURG,MD 20899. RP JEMIAN, PR (reprint author), NORTHWESTERN UNIV,MCCORMICK SCH ENGN & APPL SCI,DEPT MAT SCI & ENGN,EVANSTON,IL 60208, USA. NR 4 TC 25 Z9 25 U1 0 U2 2 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD OCT 1 PY 1990 VL 23 BP 430 EP 432 DI 10.1107/S0021889890005167 PN 5 PG 3 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA ED749 UT WOS:A1990ED74900016 ER PT J AU ROLPH, GD DRAXLER, RR AF ROLPH, GD DRAXLER, RR TI SENSITIVITY OF 3-DIMENSIONAL TRAJECTORIES TO THE SPATIAL AND TEMPORAL DENSITIES OF THE WIND-FIELD SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID METEOROLOGICAL DATA; RESOLUTION; CAPTEX; MODELS; SIMULATION AB Initialization and forecast fields from the National Weather Service's (NWS) Nested Grid Model (NGM) were archived on the 90 km calculational grid at 2-hour intervals out to 12 hours, twice per day, for the 3-month period of January-March 1987. The resulting time series of meteorological data were used to determine the sensitivity of calculated trajectories to changes in temporal and spatial density of meteorological data during a wide range of synoptic conditions. Trajectories were started from 63 evenly spaced locations, twice per day, for a duration of 4 days each over the 74-day period. The 9324 separate trajectories were computed using the meteorological data at 90, 180, and 360 km grid spacing and at 2-, 4-, 6-, and 12-hour time intervals. Calculated trajectories were compared with the base "truth" case of 2-hour data on the 90 km grid. Trajectories were most sensitive to changes in temporal resolution when the grid resolution was 90 and 180 km. Trajectories computed on the coarser 360 km grid had substantially larger deviations from the base case and were no longer sensitive to changes in temporal resolution. Relative horizontal transport deviations ranged from 5-25% of the travel distance at 96 hours depending upon the spatial and temporal resolution. Results suggest that if rawinsonde observations are the primary source of meteorological data (400 km spacing every 12 hours), then the greatest improvement in trajectory accuracy can be achieved by enhancing the temporal frequency of observations to 6-hour intervals. Results were not different when trajectories were categorized by cyclonic or anticyclonic conditions. However, horizontal deviations during cyclonic conditions were as much as 30% larger than those during anticyclonic conditions. This was attributed primarily to stronger wind speeds in cyclonic systems. RP ROLPH, GD (reprint author), NOAA,AIR RESOURCES LAB,ERL,SILVER SPRING,MD 20910, USA. RI Rolph, Glenn/P-6860-2015 NR 18 TC 50 Z9 50 U1 0 U2 4 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD OCT PY 1990 VL 29 IS 10 BP 1043 EP 1054 DI 10.1175/1520-0450(1990)029<1043:SOTDTT>2.0.CO;2 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN810 UT WOS:A1990EN81000006 ER PT J AU MAYO, S LOWNEY, JR ROITMAN, P NOVOTNY, DB AF MAYO, S LOWNEY, JR ROITMAN, P NOVOTNY, DB TI PERSISTENT PHOTOCONDUCTIVITY IN SIMOX FILM STRUCTURES SO JOURNAL OF APPLIED PHYSICS LA English DT Article RP MAYO, S (reprint author), NIST,DIV SEMICOND ELECTR,GAITHERSBURG,MD 20899, USA. NR 20 TC 5 Z9 5 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD OCT 1 PY 1990 VL 68 IS 7 BP 3456 EP 3460 DI 10.1063/1.346356 PG 5 WC Physics, Applied SC Physics GA ED736 UT WOS:A1990ED73600062 ER PT J AU VEASEY, DL LARSON, DR BATCHMAN, TE AF VEASEY, DL LARSON, DR BATCHMAN, TE TI INSITU OPTIMIZATION OF COUPLING BETWEEN SEMICONDUCTOR CLADDINGS AND DIELECTRIC WAVE-GUIDES SO JOURNAL OF APPLIED PHYSICS LA English DT Note C1 UNIV OKLAHOMA,SCH ELECT ENGN & COMP SCI,NORMAN,OK 73019. RP VEASEY, DL (reprint author), NIST,OPT ELECTR METROL GRP 72402,325 BROADWAY,BOULDER,CO 80303, USA. NR 6 TC 6 Z9 6 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD OCT 1 PY 1990 VL 68 IS 7 BP 3753 EP 3755 DI 10.1063/1.346293 PG 3 WC Physics, Applied SC Physics GA ED736 UT WOS:A1990ED73600110 ER PT J AU MARKIN, VS TSONG, TY ASTUMIAN, RD ROBERTSON, B AF MARKIN, VS TSONG, TY ASTUMIAN, RD ROBERTSON, B TI ENERGY TRANSDUCTION BETWEEN A CONCENTRATION GRADIENT AND AN ALTERNATING ELECTRIC-FIELD SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. UNIV MINNESOTA,DEPT BIOCHEM,ST PAUL,MN 55108. NR 14 TC 57 Z9 57 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD OCT 1 PY 1990 VL 93 IS 7 BP 5062 EP 5066 DI 10.1063/1.458644 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EB234 UT WOS:A1990EB23400060 ER PT J AU PENN, SM BEIJERS, JPM DRESSLER, RA BIERBAUM, VM LEONE, SR AF PENN, SM BEIJERS, JPM DRESSLER, RA BIERBAUM, VM LEONE, SR TI LASER-INDUCED FLUORESCENCE MEASUREMENTS OF DRIFT-VELOCITY DISTRIBUTIONS FOR BA+ IN AR - MOMENT ANALYSIS AND A DIRECT MEASURE OF SKEWNESS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309. NR 54 TC 14 Z9 14 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD OCT 1 PY 1990 VL 93 IS 7 BP 5118 EP 5127 DI 10.1063/1.458649 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EB234 UT WOS:A1990EB23400066 ER PT J AU CALLANAN, JE WEIR, RD WESTRUM, EF AF CALLANAN, JE WEIR, RD WESTRUM, EF TI HEAT-CAPACITY OF DEUTERATED AMMONIUM TETRAFLUOROBORATE ND4BF4 FROM 7-K TO 348-K SO JOURNAL OF CHEMICAL THERMODYNAMICS LA English DT Article C1 ROYAL MIL COLL CANADA,DEPT CHEM & CHEM ENGN,KINGSTON K7K 5LO,ONTARIO,CANADA. NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,BOULDER,CO 80303. UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109. NR 46 TC 6 Z9 6 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0021-9614 J9 J CHEM THERMODYN JI J. Chem. Thermodyn. PD OCT PY 1990 VL 22 IS 10 BP 957 EP 968 DI 10.1016/0021-9614(90)90185-S PG 12 WC Thermodynamics; Chemistry, Physical SC Thermodynamics; Chemistry GA ED934 UT WOS:A1990ED93400004 ER PT J AU CALLANAN, JE WEIR, RD WESTRUM, EF AF CALLANAN, JE WEIR, RD WESTRUM, EF TI HEAT-CAPACITY AND THERMODYNAMIC PROPERTIES OF DEUTERATED AMMONIUM HEXAFLUOROPHOSPHATE ND4PF6 FROM 5.8-K TO 347-K SO JOURNAL OF CHEMICAL THERMODYNAMICS LA English DT Article C1 ROYAL MIL COLL CANADA,DEPT CHEM & CHEM ENGN,KINGSTON K7K 5LO,ONTARIO,CANADA. NATL INST STAND & TECHNOL,CTR CHEM TECHNOL,BOULDER,CO 80303. UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109. NR 34 TC 9 Z9 9 U1 0 U2 1 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0021-9614 J9 J CHEM THERMODYN JI J. Chem. Thermodyn. PD OCT PY 1990 VL 22 IS 10 BP 979 EP 990 DI 10.1016/0021-9614(90)90187-U PG 12 WC Thermodynamics; Chemistry, Physical SC Thermodynamics; Chemistry GA ED934 UT WOS:A1990ED93400006 ER PT J AU KARL, TR WANG, WC SCHLESINGER, ME KNIGHT, RW PORTMAN, D AF KARL, TR WANG, WC SCHLESINGER, ME KNIGHT, RW PORTMAN, D TI A METHOD OF RELATING GENERAL-CIRCULATION MODEL SIMULATED CLIMATE TO THE OBSERVED LOCAL CLIMATE .1. SEASONAL STATISTICS SO JOURNAL OF CLIMATE LA English DT Article AB Important surface observations such as the daily maximum and minimum temperature, daily precipitation, and cloud ceilings often have localized characteristics that are difficult to reproduce with the current resolution and the physical parameterizations in state-of-the-art General Circulation climate Models (GCMs). Many of the difficulties can be partially attributed to mismatches in scale, local topography, regional geography and boundary conditions between models and surface-based observations. Here, we present a method, called climatological projection by model statistics (CPMS), to relate GCM grid-point free-atmosphere statistics, the predictors, to these important local surface observations. The method can be viewed as a generalization of the model output statistics (MOS) and perfect prog (PP) procedures used in numerical weather prediction (NWP) models. It consists of the application of three statistical methods: 1) principle component analysis (PCA), 2) canonical correlation, and 3) inflated regression analysis. The PCA reduces the redundancy of the predictors. The canonical correlation is used to develop simultaneous relationships between linear combinations of the predictors, the canonical variables, and the surface-based observations. Finally, inflated regression is used to related the important canonical variables to each of the surface-based observed variables. We demonstrate that even an early version of the Oregon State University two-level atmospheric GCM (with prescribed sea surface temperature) produces free-atmosphere statistics than can, when standardized using the model's internal means and variances (the MOS-like version of CPMS), closely approximate the observed local climate. When the model data are standardized by the observed free-atmosphere means and variances (the PP version of CPMS), however, the model does not reproduce the observed surface climate as well. Our results indicate that in the MOS-like version of CPMS the differences between the output of a ten-year GCM control run and the surface-based observations are often smaller than the differences between the observations of two ten-year periods. Such positive results suggest that GCMs may already contain important climatological information that can be used to infer the local climate. RP KARL, TR (reprint author), NOAA,NATL ENVIRONM SATELLITE DATA & INFORMAT SERV,NATL CLIMAT DATA CTR,FED BLDG,ASHEVILLE,NC 28801, USA. NR 0 TC 212 Z9 219 U1 0 U2 7 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD OCT PY 1990 VL 3 IS 10 BP 1053 EP 1079 DI 10.1175/1520-0442(1990)003<1053:AMORGC>2.0.CO;2 PG 27 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC722 UT WOS:A1990FC72200001 ER PT J AU OLEARY, DP STEWART, GW AF OLEARY, DP STEWART, GW TI COMPUTING THE EIGENVALUES AND EIGENVECTORS OF SYMMETRICAL ARROWHEAD MATRICES SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Note C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20879. RP OLEARY, DP (reprint author), UNIV MARYLAND,INST ADV COMP STUDIES,DEPT COMP SCI,COLLEGE PK,MD 20742, USA. NR 10 TC 41 Z9 43 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD OCT PY 1990 VL 90 IS 2 BP 497 EP 505 DI 10.1016/0021-9991(90)90177-3 PG 9 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA EB113 UT WOS:A1990EB11300011 ER PT J AU MIGHELL, AD HIMES, VL AF MIGHELL, AD HIMES, VL TI A NEW METHOD FOR PHASE IDENTIFICATION FOR ELECTRON DIFFRACTIONISTS SO JOURNAL OF ELECTRON MICROSCOPY TECHNIQUE LA English DT Article RP MIGHELL, AD (reprint author), NATL INST STAND & TECHNOL,DIV REACTOR RADIAT,GAITHERSBURG,MD 20899, USA. NR 12 TC 4 Z9 4 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0741-0581 J9 J ELECTRON MICR TECH PD OCT PY 1990 VL 16 IS 2 BP 155 EP 159 DI 10.1002/jemt.1060160205 PG 5 WC Biology; Microscopy SC Life Sciences & Biomedicine - Other Topics; Microscopy GA DX481 UT WOS:A1990DX48100004 PM 2213237 ER PT J AU ECONOPOULY, TW DAVIS, DR WOOLHISER, DA AF ECONOPOULY, TW DAVIS, DR WOOLHISER, DA TI PARAMETER TRANSFERABILITY FOR A DAILY RAINFALL DISAGGREGATION MODEL SO JOURNAL OF HYDROLOGY LA English DT Article C1 UNIV ARIZONA,DEPT HYDROL & WATER RESOURCES,TUCSON,AZ 85721. USDA ARS,ARIDLANDS WATERSHED MANAGEMENT RES UNIT,TUCSON,AZ 85713. RP ECONOPOULY, TW (reprint author), NATL WEATHER SERV OFF,EDWIN A LINK FIELD,BOX 18,JOHNSON CITY,NY 13790, USA. NR 13 TC 31 Z9 31 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-1694 J9 J HYDROL JI J. Hydrol. PD OCT PY 1990 VL 118 IS 1-4 BP 209 EP 228 DI 10.1016/0022-1694(90)90259-Z PG 20 WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources SC Engineering; Geology; Water Resources GA ED031 UT WOS:A1990ED03100013 ER PT J AU WEGLICKI, WB MAK, IT SIMIC, MG AF WEGLICKI, WB MAK, IT SIMIC, MG TI MECHANISMS OF CARDIOVASCULAR DRUGS AS ANTIOXIDANTS SO JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY LA English DT Review C1 NATL INST STAND & TECHNOL, CTR RADIAT RES, GAITHERSBURG, MD USA. RP WEGLICKI, WB (reprint author), GEORGE WASHINGTON UNIV, SCH MED,DEPT MED,DIV EXPTL MED,ROSS HALL,ROOM 409, 2300 EYE ST NW, WASHINGTON, DC 20037 USA. FU NHLBI NIH HHS [P01-HL-38079, R01-HL-36418] NR 41 TC 85 Z9 85 U1 0 U2 1 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0022-2828 EI 1095-8584 J9 J MOL CELL CARDIOL JI J. Mol. Cell. Cardiol. PD OCT PY 1990 VL 22 IS 10 BP 1199 EP 1208 DI 10.1016/0022-2828(90)90083-E PG 10 WC Cardiac & Cardiovascular Systems; Cell Biology SC Cardiovascular System & Cardiology; Cell Biology GA EF159 UT WOS:A1990EF15900015 PM 2095441 ER PT J AU WU, YC KOCH, WF HAMER, WJ KAY, RL AF WU, YC KOCH, WF HAMER, WJ KAY, RL TI AN UPDATE ON THE ELECTROLYTIC CONDUCTIVITY VALUES FOR THE PRIMARY STANDARD KCL SOLUTIONS - CONVERSION TO THE ITS-90 TEMPERATURE SCALE SO JOURNAL OF SOLUTION CHEMISTRY LA English DT Article C1 CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213. RP WU, YC (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 3 TC 5 Z9 5 U1 0 U2 1 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0095-9782 J9 J SOLUTION CHEM JI J. Solut. Chem. PD OCT PY 1990 VL 19 IS 10 BP 1053 EP 1054 DI 10.1007/BF00650508 PG 2 WC Chemistry, Physical SC Chemistry GA EE743 UT WOS:A1990EE74300007 ER PT J AU XU, Q AF XU, Q TI COLD AND WARM FRONTAL CIRCULATIONS IN AN IDEALIZED MOIST SEMIGEOSTROPHIC BAROCLINIC WAVE SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article RP XU, Q (reprint author), UNIV OKLAHOMA,NOAA,COOPERAT INST MESOSCALE METEOROL STUDIES,401 E BOYD,NORMAN,OK 73019, USA. NR 22 TC 20 Z9 20 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD OCT 1 PY 1990 VL 47 IS 19 BP 2337 EP 2352 DI 10.1175/1520-0469(1990)047<2337:CAWFCI>2.0.CO;2 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EH608 UT WOS:A1990EH60800006 ER PT J AU KANIA, DR MACGOWAN, BJ KEANE, CJ BROWN, CM EKBERG, JO SEELY, JF FELDMAN, U READER, J AF KANIA, DR MACGOWAN, BJ KEANE, CJ BROWN, CM EKBERG, JO SEELY, JF FELDMAN, U READER, J TI TRANSITIONS AND ENERGY-LEVELS FOR CU-LIKE YB-41+, TA-44+, AND U-63+ SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NIST, GAITHERSBURG, MD 20899 USA. USN, RES LAB, EO HULBURT CTR SPACE RES, WASHINGTON, DC 20375 USA. RP KANIA, DR (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NR 13 TC 23 Z9 23 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0740-3224 EI 1520-8540 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD OCT PY 1990 VL 7 IS 10 BP 1993 EP 1996 DI 10.1364/JOSAB.7.001993 PG 4 WC Optics SC Optics GA ED046 UT WOS:A1990ED04600001 ER PT J AU PETERSON, MB JAHANMIR, S AF PETERSON, MB JAHANMIR, S TI THE UNLUBRICATED SLIDING WEAR BEHAVIOR OF A WROUGHT COBALT-CHROMIUM ALLOY AGAINST MONOLITHIC CERAMIC COUNTERFACES SO JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME LA English DT Letter RP PETERSON, MB (reprint author), NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4787 J9 J TRIBOL-T ASME JI J. Tribol.-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 743 EP 743 DI 10.1115/1.2920330 PG 1 WC Engineering, Mechanical SC Engineering GA EE703 UT WOS:A1990EE70300030 ER PT J AU BEDARD, AJ AF BEDARD, AJ TI A REVIEW OF THE EVIDENCE FOR STRONG, SMALL-SCALE VORTICAL FLOWS DURING DOWNSLOPE WINDSTORMS SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Review RP BEDARD, AJ (reprint author), NOAA,ERL,WPL,325 BROADWAY,BOULDER,CO 80303, USA. NR 20 TC 2 Z9 2 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 97 EP 106 DI 10.1016/0167-6105(90)90296-O PN 1 PG 10 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EM672 UT WOS:A1990EM67200009 ER PT J AU GOLDEN, JH AF GOLDEN, JH TI THE COMING DELUGE OF WIND DATA FOR WIND ENGINEERS SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article RP GOLDEN, JH (reprint author), NOAA,NATL WEATHER SERV,ROCKVILLE,MD 20852, USA. NR 15 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 119 EP 130 PN 1 PG 12 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EM672 UT WOS:A1990EM67200011 ER PT J AU POWELL, MD BLACK, PG AF POWELL, MD BLACK, PG TI THE RELATIONSHIP OF HURRICANE RECONNAISSANCE FLIGHT-LEVEL WIND MEASUREMENTS TO WINDS MEASURED BY NOAA OCEANIC PLATFORMS SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article RP POWELL, MD (reprint author), NOAA,DIV HURRICANE RES,MIAMI,FL 33149, USA. RI Powell, Mark/I-4963-2013 OI Powell, Mark/0000-0002-4890-8945 NR 8 TC 34 Z9 34 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 381 EP 392 PN 1 PG 12 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EM672 UT WOS:A1990EM67200035 ER PT J AU COOK, GR SIMIU, E AF COOK, GR SIMIU, E TI CHAOTIC MOTIONS OF FORCED AND COUPLED GALLOPING OSCILLATORS SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article AB Numerical simulations of the behavior of a periodically forced square galloping oscillator yielded results showing that the behavior of this system has similarities with the behavior of the circle map. Lock-in regions were found to be ordered as rational numbers obtained by the Farey construction. At the transition from quasiperiodic to chaotic motion corresponding to a winding number equal to the golden mean, the fractal dimension of the critical line was found to be 0.864, that is, to within 0.5% of the theoretical value for the circle map. Numerical studies were also performed on an autonomous system consisting of two elastically coupled galloping oscillators. Preliminary tests conducted in the 0.3 m diameter water tunnel of the David Taylor Research Center and in the CBT wind tunnel demonstrated the feasibility of the experimental study of both the forced oscillator and the autonomous coupled oscillators described in the paper. Research on these systems is being conducted in collaboration with the Center for Computational and Applied Mathematics, NIST, and the David Taylor Research Center, U.S. Department of the Navy. RP COOK, GR (reprint author), NATL INST STAND & TECHNOL,CTR BLDG TECHNOL,GAITHERSBURG,MD 20899, USA. NR 10 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 1083 EP 1094 DI 10.1016/0167-6105(90)90105-L PN 2 PG 12 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EN841 UT WOS:A1990EN84100040 ER PT J AU MATSUSHITA, Y MORI, K SAGUCHI, R NODA, I NAGASAWA, M CHANG, T GLINKA, CJ HAN, CC AF MATSUSHITA, Y MORI, K SAGUCHI, R NODA, I NAGASAWA, M CHANG, T GLINKA, CJ HAN, CC TI CHAIN CONFORMATIONS AND LOCATIONS OF PARTS OF A BLOCK POLYMER IN A LAMELLAR STRUCTURE SO MACROMOLECULES LA English DT Article C1 NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,GAITHERSBURG,MD 20899. RP MATSUSHITA, Y (reprint author), NAGOYA UNIV,DEPT SYNTHET CHEM,FURO CHO,CHIKUSA KU,NAGOYA 46401,JAPAN. RI Chang, Taihyun/F-5725-2013 NR 18 TC 28 Z9 28 U1 2 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD OCT 1 PY 1990 VL 23 IS 20 BP 4387 EP 4391 DI 10.1021/ma00222a010 PG 5 WC Polymer Science SC Polymer Science GA EB448 UT WOS:A1990EB44800010 ER PT J AU FACTOR, BJ RUSSELL, TP SMITH, BA FETTERS, LJ BAUER, BJ HAN, CC AF FACTOR, BJ RUSSELL, TP SMITH, BA FETTERS, LJ BAUER, BJ HAN, CC TI PHASE-SEPARATION KINETICS OF MIXTURES OF LINEAR AND STAR-SHAPED POLYMERS SO MACROMOLECULES LA English DT Article C1 IBM CORP,DIV RES,ALMADEN RES CTR,650 HARRY RD,SAN JOSE,CA 95120. EXXON RES & ENGN CO,RES LAB,ANNANDALE,NJ 08801. NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. NR 24 TC 8 Z9 8 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD OCT 1 PY 1990 VL 23 IS 20 BP 4452 EP 4455 DI 10.1021/ma00222a018 PG 4 WC Polymer Science SC Polymer Science GA EB448 UT WOS:A1990EB44800018 ER PT J AU REILLY, SB THAYER, VG AF REILLY, SB THAYER, VG TI BLUE WHALE (BALAENOPTERA-MUSCULUS) DISTRIBUTION IN THE EASTERN TROPICAL PACIFIC SO MARINE MAMMAL SCIENCE LA English DT Article RP REILLY, SB (reprint author), NOAA,NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,POB 271,LA JOLLA,CA 92038, USA. NR 49 TC 54 Z9 59 U1 0 U2 15 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD OCT PY 1990 VL 6 IS 4 BP 265 EP 277 DI 10.1111/j.1748-7692.1990.tb00357.x PG 13 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EJ782 UT WOS:A1990EJ78200001 ER PT J AU FAY, FH SEASE, JL MERRICK, RL AF FAY, FH SEASE, JL MERRICK, RL TI PREDATION ON A RINGED SEAL, PHOCA-HISPIDA, AND A BLACK GUILLEMOT, CEPPHUS-GRYLLE, BY A PACIFIC WALRUS, ODOBENUS-ROSMARUS DIVERGENS SO MARINE MAMMAL SCIENCE LA English DT Note C1 NATL MARINE FISHERIES SERV,ALASKA REG,DIV PROTECTED RESOURCES MANAGEMENT,JUNEAU,AK 99802. NATL MARINE FISHERIES SERV,ALASKA FISHERIES SCI CTR,NATL MARINE FISHERIES SERV,SEATTLE,WA 98115. RP FAY, FH (reprint author), UNIV ALASKA,INST MARINE SCI,FAIRBANKS,AK 99775, USA. NR 12 TC 13 Z9 13 U1 0 U2 9 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD OCT PY 1990 VL 6 IS 4 BP 348 EP 350 DI 10.1111/j.1748-7692.1990.tb00364.x PG 3 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EJ782 UT WOS:A1990EJ78200008 ER PT J AU RICE, DW AF RICE, DW TI THE SCIENTIFIC NAME OF THE PILOT WHALE - A REJOINDER SO MARINE MAMMAL SCIENCE LA English DT Letter RP RICE, DW (reprint author), NATL MARINE MAMMAL LAB,7600 SAND POINT WAY,BLDG 4,SEATTLE,WA 98115, USA. NR 0 TC 0 Z9 1 U1 0 U2 0 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD OCT PY 1990 VL 6 IS 4 BP 359 EP 360 PG 2 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EJ782 UT WOS:A1990EJ78200010 ER PT J AU CLOUGH, RB BIANCANIELLO, FS WADLEY, HNG KATTNER, UR AF CLOUGH, RB BIANCANIELLO, FS WADLEY, HNG KATTNER, UR TI FIBER AND INTERFACE FRACTURE IN SINGLE-CRYSTAL ALUMINUM-SIC FIBER COMPOSITES SO METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article C1 UNIV VIRGINIA,DEPT MECH & AEROSP ENGN,CHARLOTTESVILLE,VA 22903. RP CLOUGH, RB (reprint author), NIST,GAITHERSBURG,MD 20899, USA. NR 21 TC 18 Z9 18 U1 0 U2 0 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0360-2133 J9 METALL TRANS A PD OCT PY 1990 VL 21 IS 10 BP 2747 EP 2757 DI 10.1007/BF02646070 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA EG906 UT WOS:A1990EG90600013 ER PT J AU BENJAMIN, SG MILLER, PA AF BENJAMIN, SG MILLER, PA TI AN ALTERNATIVE SEA-LEVEL PRESSURE REDUCTION AND A STATISTICAL COMPARISON OF GEOSTROPHIC WIND ESTIMATES WITH OBSERVED SURFACE WINDS SO MONTHLY WEATHER REVIEW LA English DT Article RP BENJAMIN, SG (reprint author), NOAA,ENVIRONM RES LABS,FORECAST SYST LAB,PROGRAM REG OBSERV & FORECASTING SERV,BOULDER,CO 80303, USA. RI Benjamin, Stan/C-5818-2015 OI Benjamin, Stan/0000-0002-5751-8236 NR 22 TC 19 Z9 20 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD OCT PY 1990 VL 118 IS 10 BP 2099 EP 2116 DI 10.1175/1520-0493(1990)118<2099:AASLPR>2.0.CO;2 PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EJ424 UT WOS:A1990EJ42400010 ER PT J AU THIEBAUX, HJ MORONE, LL WOBUS, RL AF THIEBAUX, HJ MORONE, LL WOBUS, RL TI GLOBAL FORECAST ERROR CORRELATION .1. ISOBARIC WIND AND GEOPOTENTIAL SO MONTHLY WEATHER REVIEW LA English DT Article RP THIEBAUX, HJ (reprint author), NOAA,NATL WEATHER SERV,NATL METEOROL CTR 2,WASHINGTON,DC 20233, USA. NR 16 TC 9 Z9 9 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD OCT PY 1990 VL 118 IS 10 BP 2117 EP 2137 DI 10.1175/1520-0493(1990)118<2117:GFECPI>2.0.CO;2 PG 21 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EJ424 UT WOS:A1990EJ42400011 ER PT J AU KURIHARA, Y BENDER, MA TULEYA, RE ROSS, RJ AF KURIHARA, Y BENDER, MA TULEYA, RE ROSS, RJ TI PREDICTION EXPERIMENTS OF HURRICANE GLORIA (1985) USING A MULTIPLY NESTED MOVABLE MESH MODEL SO MONTHLY WEATHER REVIEW LA English DT Article RP KURIHARA, Y (reprint author), PRINCETON UNIV,NOAA,GEOPHYS FLUID DYNAM LAB,POB 308,PRINCETON,NJ 08542, USA. NR 26 TC 43 Z9 46 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD OCT PY 1990 VL 118 IS 10 BP 2185 EP 2198 DI 10.1175/1520-0493(1990)118<2185:PEOHGU>2.0.CO;2 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EJ424 UT WOS:A1990EJ42400014 ER PT J AU DEMARIA, M AF DEMARIA, M TI NORMAL MODE INITIALIZATION IN A TROPICAL CYCLONE MODEL SO MONTHLY WEATHER REVIEW LA English DT Article RP DEMARIA, M (reprint author), NOAA,ATLANTIC OCEANOG & METEOROL LAB,DIV HURRICANE RES,4301 RICKENBACKER CAUSEWAY,MIAMI,FL 33149, USA. RI DeMaria, Mark/F-5583-2010 NR 26 TC 2 Z9 2 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD OCT PY 1990 VL 118 IS 10 BP 2199 EP 2214 DI 10.1175/1520-0493(1990)118<2199:NMIIAT>2.0.CO;2 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EJ424 UT WOS:A1990EJ42400015 ER PT J AU BOND, LJ AF BOND, LJ TI REVIEW OF PROGRESS IN QUANTITATIVE NDE - LA-JOLLA, CALIFORNIA, USA, 15-20 JULY 1990 SO NDT INTERNATIONAL LA English DT Editorial Material C1 NATL INST STAND & TECHNOL,BOULDER,CO. RP BOND, LJ (reprint author), UNIV COLORADO,BOULDER,CO 80309, USA. NR 0 TC 1 Z9 1 U1 1 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0308-9126 J9 NDT INT PD OCT PY 1990 VL 23 IS 5 BP 293 EP 295 PG 3 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EQ281 UT WOS:A1990EQ28100006 ER PT J AU WANG, RQ AF WANG, RQ TI ALBEDO AND ENERGY ALBEDO OF LOW-ENERGY ELECTRONS FROM BULK MATERIALS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article C1 NBS,GAITHERSBURG,MD 20989. CHINESE ACAD SCI,DALIAN INST CHEM PHYS,DALIAN,PEOPLES R CHINA. NR 47 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD OCT PY 1990 VL 51 IS 4 BP 385 EP 395 DI 10.1016/0168-583X(90)90557-B PG 11 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EH568 UT WOS:A1990EH56800010 ER PT J AU BOCKHOFF, KH CARLSON, AD WASSON, OA HARVEY, JA LARSON, DC AF BOCKHOFF, KH CARLSON, AD WASSON, OA HARVEY, JA LARSON, DC TI ELECTRON LINEAR ACCELERATORS FOR FAST-NEUTRON DATA MEASUREMENTS IN SUPPORT OF FUSION ENERGY APPLICATIONS SO NUCLEAR SCIENCE AND ENGINEERING LA English DT Article C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. RP BOCKHOFF, KH (reprint author), CENT BUR NUCL MEASUREMENTS,B-2440 GEEL,BELGIUM. NR 26 TC 17 Z9 17 U1 0 U2 0 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0029-5639 J9 NUCL SCI ENG JI Nucl. Sci. Eng. PD OCT PY 1990 VL 106 IS 2 BP 192 EP 207 PG 16 WC Nuclear Science & Technology SC Nuclear Science & Technology GA EA441 UT WOS:A1990EA44100007 ER PT J AU ZHOU, HL WHITTEN, BL SNITCHLER, G NORCROSS, DW MITROY, J AF ZHOU, HL WHITTEN, BL SNITCHLER, G NORCROSS, DW MITROY, J TI SPIN-DEPENDENT ELECTRON-IMPACT EXCITATION OF SODIUM SO PHYSICAL REVIEW A LA English DT Article C1 UNIV COLORADO,BOULDER,CO 80309. NATL INST STANDARDS & TECHNOL,DIV QUANTUM PHYS,BOULDER,CO 80309. AUSTRALIAN NATL UNIV,RES SCH PHYS SCI,DEPT THEORET PHYS,CANBERRA,ACT 2601,AUSTRALIA. RP ZHOU, HL (reprint author), NATL INST STANDARDS & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. RI Mitroy, James/N-2162-2013 OI Mitroy, James/0000-0002-2477-1251 NR 21 TC 13 Z9 13 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD OCT 1 PY 1990 VL 42 IS 7 BP 3907 EP 3912 DI 10.1103/PhysRevA.42.3907 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EB465 UT WOS:A1990EB46500027 ER PT J AU GELTMAN, S AF GELTMAN, S TI ATOMIC ALIGNMENT EFFECTS IN THE ASSOCIATIVE IONIZATION OF SODIUM SO PHYSICAL REVIEW A LA English DT Note C1 NATL INST STANDARDS & TECHNOL,BOULDER,CO 80309. RP GELTMAN, S (reprint author), UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. NR 23 TC 0 Z9 0 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. 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