检索结果-南通市图书馆

Magnetospheric physics in China: 2002-2004

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

空间科学学报 2004年第Z1期24卷 116-127页

作者： CAO Jinbin LIU Zhenxing LI Lei PU Zhuying Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 China Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 China Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 China School of Earth and Space Sciences Peking University Beijing 100871 China

This brief report presents the latest advances of the magnetospheric physics researches in China during the period of 2002-2004. The progress of the magnetospheric space mission DSP is given in another dedicated paper... 详细信息

关键词： Magnetospheric physics, Geospace storm, Progress

A novel optical filter of fiber Bragg grating

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2006年第5期49卷 611-620页

作者： LI Xiaolu JIANG Yuesong School of Electronic and Information Engineering Beijing University of Aeronautics & Astronautics Beijing 100083 China School of Electronic and Information Engineering Beijing University of Aeronautics & Astronautics Beijing 100083 China

A theory of a novel optical filter of drawing the fiber Bragg grating by the heated elastic sheet is advanced. Based on the heat conduction equation, a set of func- tions of temperature and thermal expansion on the heated elastic sheet are calculated. And the most displacement of the heated elastic sheet is also described. Finally the ex- pression of the reflected Bragg wavelength deviation in terms of the thermal power density of heat-source is deduced. The physics feasibility of these conclusions mentioned above is proved. It is a potential value for the novel optical filter to research.

关键词： fiber Bragg grating, equations of mathematical physics, heat conduction equation, expansion coefficient, photoelastic effect.

Progress on Microgravity Sciences in China

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

空间科学学报 2006年第Z1期26卷 150-159页

作者： LIU Qiusheng NIE Yuxin FENG Meifu HU Wenrui Institute of Mechanics National Microgravity Laboratory Chinese Academy of Sciences Beijing 100080 China Institute of Physics Chinese Academy of Sciences Institute of Zoology Chinese Academy of Sciences Institute of Mechanics National Microgravity Laboratory Chinese Academy of Sciences Beijing 100080 China

The main progress of the research activities on microgravity fluid physics, combustion, biotechnology research and fundamental physics in China are briefly summarized in the present paper. The major space missions and experimental results obtained on board the Chinese recoverable/nonrecoverable satellites and the Chinese manned spaceship named "Shen Zhou" are presented summarily. The recent main activities of the ground-based studies in China are introduced in brief.

关键词： Microgravity sciences, Fluid physics, Combustion, Fundamental physics, Biotechnology

A Brief Introduction and Recent Progress of the Geospace Double Star Program

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

空间科学学报 2004年第Z1期24卷 39-45页

作者： LIU Zhenxing CAO Jinbin Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 China Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 China

The Geospace Double Star Project (DSP) consists of two small satellites operating in the near-earth equatorial and polar regions, respectively. The goals of DSP are: (1) to provide high-resolution field, particle, and wave measurements in some important near-earth active regions which have not been covered by current ISTP missions, such as the near-earth plasma sheet and its boundary layer, the ring current, the radiation belts, the dayside magnetopause boundary layer, and the polar region; (2) to investigate the trigger mechanisms of magnetic storms, magnetospheric substorms, and magnetospheric particle events,as well as the responses of geospace storms to solar activities and interplanetary disturbances; (3) to set up the models describing the spatial and temporal variations of the near-earth space *** realize the above goals, the equatorial satellite TC-1 and the polar satellite TC-2 will accommodate, respectively, eight instruments on board. TC-1was launched successfully in December 2003 while the polar satellite (TC-2)will be launched in July 2004. The orbit of the equatorial satellite TC-1 consists of a perigee at 550 km, an apogee at 60 000 km, and an inclination of about 28.5; while the orbit of the polar satellite will have a perigee of 700 km, an apogee of 40 000 km, and an inclination of about 90. The two satellites will take coordinated measurements with Cluster Ⅱ and will first form a "six-point exploration" in *** operational status of TC-1 are introduced in this paper.

关键词： Solar-terrestrial space physics, Double star exploration project,International cooperation

A BRIEF INTRODUCTION TO GEOSPACE DOUBLE STAR PROGRAM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

空间科学学报 2002年第Z1期22卷 29-34页

作者： LIU Zhenxing Center for Space Science and Applied Research The Chinese Academy of Sciences Beijing 100080 P.R. China

The Geospace Double Star Exploration Project (DSP) contains two small satel lites operating in the near-earth equatorial and polar regions respectively. The tasks of DSP are: (1) to provide high-resolution field, particle and wave mea surements in several important near-earth active regions which have not been covered by existing ISTP missions, such as the near-earth plasma sheet and its boundary layer, the ring current, the radiation belts, the dayside magnetopause boundary layer, and the polar region; (2) to investigate he trigger mechanisms of magnetic storms, magnetospheric substorms, and magnetospheric particle storms, as well as the responses of geospace storms to solar activities and in terplanetary disturbances; (3) to set up the models describing the spatial and temporal variations of the near-earth space *** complete the mission, there are eight instruments on board the equatorial satellite and the polar satellite, respectively. The orbit of the equatorial satellite is proposed with a perigee at 550km and an apogee at 60 000km, and the inclination is about 28.5°; while the orbit of the polar satellite with a perigee at 700 km and an apogee at 40 000 km, as well as an inclination about 90°. The equatorial and polar satellites are planed to be launched into orbits in June 2003 and December 2003 respectively to take coordinating measurements with Cluster Ⅱ and other missions.

关键词： Solar-Terrestrial space physics, Double star exploration project,International cooperation