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Formation and Fate of Bacterial Sulfonates.

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[文献类型]:科技报告
[标题]:Formation and Fate of Bacterial Sulfonates.
[作者]:leadbetter, e. r. godchaux, w.
[机构]:Connecticut Univ.,Storrs. Dept. of Molecular and Cell Biology.
[关键词]:bacteria,biochemistry,biodeterioration,biosynthesis,sulfonates,degradation,gliding,mutagens,oxidation,physiology,reduction,solubility,sulfonate reduction,biocorrosion,sulfonate oxidation,ntisdodxa
[出版年份]:1989
[报告时间]:5Jan 89,
[页码]:5p
[馆藏索取号]:AD-A209654
[总页数]:7


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[唯一标识符]:CDSITC.AEROSPACE.A03-26988
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:A2003-26988
[标题]:Reconsidering the effectiveness of quasi-static thunderstorm electric fields for whistler duct formation
[作者]:McCormick R J; Rodger C J; Thomson N R
[来源]:Journal-of-Geophysical-Research. A. Space-Physics. 2002 November; vol. 107, no. A11: SIA 16-1 to SIA 16-8
[文摘]:It has been suggested that E x B mixing of magnetospheric plasma can lead to geomagnetic field-aligned ionization enhancements termed whistler ducts. Recent experimental observations have indicated that quasi-static radial thunderstorm electric fields are not responsible for whistler duct formation. This evidence appears to be in contradiction to the current theoretical calculations. In this paper we reconsider whistler duct formation through quasi-static thunderstorm electric fields. Both the charge distributions and ionospheric profiles previously used are based on rather dated assumptions. We find that more realistic thunderstorm charge distributions in conjunction with the earlier ionospheric profiles produce high-altitude electric fields that are of insufficient strength, given average thunderstorm effective charge, to create ducting within a reasonable time period. This is, however, not confirmed when the same charge distributions are examined using a more modern ionospheric profile based on international standard models for the ionosphere and neutral atmosphere. In this case some charge distributions will lead to realistic whistler duct creation. Our modeling suggests that quasi-electrostatic radial fields from thunderstorms could drive whistler duct formation in some situations. (Author)
[关键词]:THUNDERSTORMS ; ELECTRIC FIELDS; WHISTLERS ; EARTH MAGNETOSPHERE; FIELD ALIGNED CURRENTS; SPACE PLASMAS; CHARGE DISTRIBUTION; EARTH IONOSPHERE; MATHEMATICAL MODELS; NEUTRAL ATMOSPHERES; ACOUSTIC DUCTS
[出版年份]:2002
[专业领域]:Geosciences, General
[文献类型]:科技报告
[标题]:SIXTY-DAY MANNED TEST OF A REGENERATIVE LIFE SUPPORT SYSTEM WITH OXYGEN AND WATER RECOVERY. PART 2 -AEROSPACE MEDICINE AND MAN-MACHINE TEST RESULTS.
[机构]:Mcdonnell-douglas Astronautics Co.,Santa Monica,Calif. Advance Biotechnology and Power Dept.
[关键词]:aerospace medicine,life support systems,oxygen supply equipment,space environment simulation,water reclamation,cabin atmospheres,carbon dioxide,human behavior,man machine systems,microbiology,
[出版年份]:1969
[报告号]:NASA-CR-98501, DAC-62296
[报告时间]:Dec 68,
[页码]:129p
[馆藏索取号]:N69-25649
[总页数]:125