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软件定义的GPS和伽利略接收机

作者:科技文献资料网 时间:2017-06-24 11:44:55  浏览:8505   来源:科技文献资料网
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[唯一标识符]:CDSTIC.GCWXK.397772
[文献来源]:中外文科技图书数据库
[文献类型]:科技图书
[标题]:软件定义的GPS和伽利略接收机
[作者]:[美]Dennis M.Akos; [丹]Kai Borre
[出版单位]:国防工业出版社
[出版时间]:200903
[出版年份]:2009
[页码]:148p
[馆藏索取号]:TS10042


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[文献类型]:科技报告
[标题]:Environmental Conditions in the Gulf of Mexico during November-December.
[作者]:boyd, j. d. jugan, l. a.
[机构]:Naval Oceanographic and Atmospheric Research Lab., Stennis Space Center,MS.
[关键词]:acoustic properties,meteorological data,mexico gulf,oceanographic data,atmospheric physics,deployment,gulfs,instrumentation,mexico,oceanography,position(location),variables,gulf of mexaco,air water interactions,ntisdodxa
[出版年份]:1991
[报告号]:Rept no. NOARL-TN-83
[报告时间]:Oct 90,
[页码]:49p
[馆藏索取号]:AD-A229384
[总页数]:0


[唯一标识符]:CDSITC.AEROSPACE.N90-15382
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:N1990-15382; Reference AN: N90-15382
[标题]:Gas turbine regenerators: A method for selecting the optimum plate-finned surface pair for minimum core volume (M.S. Thesis)
[作者]:CAMPBELL JOSEPH F JR
[文摘]:Based on a power law curve fit for the Soland et al. 2 modification of the Kays-London 1 way of presenting heat exchanger performance, a closed-form for sizing counterflow regenerators is derived. After applying this method to many Kays-London plate-finned surfaces, the optimum surface pair for minimum heat exchanger core volume is found to be 1/9 to 24.12 and 1/10 to 19.35. In general, the minimum core volume will be obtained by following a three step process: select a surface for the high pressure side having the minimum plate spacing commensurate with cleaning constraints; list all other available surfaces with plate spacings nearly equal to the selected high pressure side plate spacing; and select from this list the surface with the minimum hydraulic diameter for use on the low pressure side. (GRA)
[关键词]:CORES ; GAS TURBINES; HEAT EXCHANGERS; OPTIMIZATION ; REGENERATORS ; FINS ; HIGH PRESSURE; HYDRAULICS ; LOW PRESSURE; PLATES
[出版年份]:1989
[专业领域]:FLUID MECHANICS AND ELECTRICAL ENGINEERING

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