Methane hydrate dissociation rates as 0.1 MPa and temperatures above 272K

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[唯一标识符]:CDSTIC.DOE.15189
[文献来源]:美国能源部报告数据库
[文献类型]:科技报告
[资源原始索取号]:OSTI ID: 15189
[标题]:Methane hydrate dissociation rates as 0.1 MPa and temperatures above 272K
[作者]:Durham, W B; Circone, S; Stern, L A; Kirby, S H; Pinkston, J C
[机构]:Lawrence Livermore National Lab., CA (US)
[文摘]:We performed rapid depressurization experiments on methane hydrate under isothermal conditions above 272 K to determine the amount and rate of methane evolution. Sample temperatures rapidly drop below 273 K and stabilize near 272.5 K during dissociation. This thermal anomaly and the persistence of methane hydrate are consistent with the reported recovery of partially dissociated methane hydrate from ocean drilling cores.
[关键词]:03 NATURAL GAS; 54 ENVIRONMENTAL SCIENCES ; DEPRESSURIZATION; DISSOCIATION; DRILLING; GAS HYDRATES; METHANE
[出版时间]:1999 Oct 25
[出版年份]:1999
[报告号]:UCRL-JC-136097
[合同号]:W-7405-Eng-48
[主办机构]:USDOE Office of Defense Programs (DP) (US)
[来源]:Conference
[来源关系]:Third International Conference on Gas Hydrates, Salt Lake City, UT (US), 07/18/1999--07/22/1999 ; PBD: 25 Oct 1999
[国别]:United States
[总页数]:25


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[唯一标识符]:CDSTIC.AIAA.1969-0897
[文献来源]:美国航空航天学会会议(AIAA)
[文献类型]:科技会议
[标题]:New longitudinal handing qualities data - carrier approach/在航空母舰上进场时的最新纵向操纵品质数据
[作者]:Miller; G. E.
[出版单位]:美国航空航天局
[关键词]:Aircraft carrier, Flying quality, Landing simulation, Longitudinal control
[出版时间]:1969
[出版年份]:1969
[报告号]:AIAA69-0897
[会议名称]:AIAA Guidance, Control and Flight Mechanical Conference
[馆藏索取号]:AIAA69-0897
[总页数]:6


[唯一标识符]:CDSITC.AEROSPACE.A89-32724
[文献来源]:美国航空航天数据库(aerospace);国际航宇文摘(IAA)
[资源原始索取号]:A1989-32724; Reference AN: A89-32724
[标题]:The binary model of HD 94033 and the physical nature of dwarf Cepheid
[作者]:YANG JIANG SHI
[书名]:IN: European Regional Astronomy Meeting of the IAU, 10th, Prague, Czechoslovakia, Aug. 24-29, 1987, Proceedings. Volume 5 (A89-32669 13-90). Ondrejov, Czechoslovakia, Czechoslovak Academy of Sciences, 1987, p. 333- 335.
[文摘]:HD 94033 was discovered in 1975 as a dwarf Cepheid with a pulsation period of 86 min. From 1981 to 1984, it has been observed many times, and its O-C values of the time of maxima have been found to exhibit regular variation with a long period of about 9 years. The new observation until 1987 still fits this variation very well. This is believed to be due to the light- time effect in a binary system. Some physical features of the dwarf Cepheid and Delta Scuti are then discussed. (Author)
[关键词]:CEPHEID VARIABLES; COMPUTATIONAL ASTROPHYSICS; DWARF STARS; STELLAR MODELS; BINARY STARS; LEAST SQUARES METHOD; STELLAR MASS; STELLAR ORBITS
[出版年份]:1987
[专业领域]:ASTROPHYSICS
[馆藏索取号]:A89-32724