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浏览/检索结果: 共10条，第1-10条 帮助

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Heat Health Risk and Adaptability Assessments at the Subdistrict Scale in Metropolitan Beijing 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DISASTER RISK SCIENCE, 2022, 页码: 17
作者:  Su, Xiaokang;  Wang, Fang;  Zhou, Demin;  Zhang, Hongwen
  |  收藏  |  浏览/下载：32/0  |  提交时间：2022/11/11
Heat Health Risk and Adaptability Assessments at the Subdistrict Scale in Metropolitan Beijing 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DISASTER RISK SCIENCE, 2022, 页码: 17
作者:  Su, Xiaokang;  Wang, Fang;  Zhou, Demin;  Zhang, Hongwen
  |  收藏  |  浏览/下载：30/0  |  提交时间：2022/11/11
Nitrogen enrichment mediates the effects of high temperature on the growth, photosynthesis, and biochemical constituents of Gracilaria blodgettii and Gracilaria lemaneiformis 期刊论文  OAI收割
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2021
作者:  Ma, Chen;  Qin, Song;  Cui, Hongli;  Liu, Zhengyi;  Zhuang, Longchuan
  |  收藏  |  浏览/下载：87/0  |  提交时间：2021/12/01
Temperature environmental adaptability on electrical and stress properties of Ge film in space 期刊论文  OAI收割
Journal of Materials Research and Technology, 2021, 卷号: 15, 页码: 6670-6677
作者:  Li YP(李云鹏);  Chen B(陈波);  Dai XJ(代雪晶);  Yang HC(杨洪臣);  Wang HP(王华朋)
  |  收藏  |  浏览/下载：33/0  |  提交时间：2021/12/20
The complete genome of hydrocarbon-degrading Pseudoalteromonas sp. NJ289 and its phylogenetic relationship CNKI期刊论文  OAI收割
2017
作者:  LIU Fangming;  WANG Yibin;  QU Changfeng;  ZHENG Zhou;  MIAO Jinlai
  |  收藏  |  浏览/下载：0/0  |  提交时间：2024/12/18
The complete genome of hydrocarbon-degrading Pseudoalteromonas sp NJ289 and its phylogenetic relationship 期刊论文  OAI收割
ACTA OCEANOLOGICA SINICA, 2017, 卷号: 36, 期号: 2, 页码: 88-93
作者:  Liu Fangming;  Wang Yibin;  Qu Changfeng;  Zheng Zhou;  Miao Jinlai
收藏  |  浏览/下载：24/0  |  提交时间：2017/04/05
Autumnal increase in proportion of toxic Microcystis in Lake Taihu depends more on temperature adaptability than on effects of toxigenicity 期刊论文  OAI收割
JOURNAL OF APPLIED MICROBIOLOGY, 2015, 卷号: 119, 期号: 3, 页码: 744-752
作者:  Hu, L.;  Kong, R.;  Xu, X.
收藏  |  浏览/下载：29/0  |  提交时间：2015/10/08
Design and simulation of CMOS star sensor lens with large relative aperture and wide field (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Zhong X.; Jin G.
收藏  |  浏览/下载：59/0  |  提交时间：2013/03/25
A 50mm focal length  F/1.25  Gaussian type optical system is designed in this paper  which has 20field of view. Actual star image adding optical cross-talk effect of CMOS(Complementary Metal Oxide Semiconductor)  detector is simulated by non-sequential ray tracing in ZEMAX optical design and analysis software to evaluate its performance. The distortion relative to image spot centriod is introduced and calculated by simulated star images  which is less than 0.03% of lens in this paper. Thermal adaptability is discussed by opt-mechanic thermal analysis  which shows the RMS spot radius of marginal filed changes less than 0.7m under 10C temperature gradient  and changes less than 1m during homogeneous temperature changing from 40C to 40C. The results of analyses and simulations show the design of this lens can achieve the requirement of high precision CMOS star sensor well. 2011 IEEE.  
Design and test of focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Li Y.;  Li Y.;  Li Y.;  Wang H.;  Wang H.
收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25
According to the focal depth and work environment of a space camera  a focusing mechanism is designed  which consists of precision screw ball transmission and linear bearing guidance and accuracy improving. The dynamic- strike- resistance  adaptability to temperature and vacuum are considered into the reliable design method. Furthermore  the linearity error  the structure stability and the mechanism work situation in high and low temperature are tested. The result is that the linearity error of the mechanism is less than 0.003 mm  and the sway error of vertical way and level way of the mirror is less than 20''. The linearity error of the mechanism and the sway error of the mirror remain unchanged after vibration test. The mechanism can work in the complex space environment. 2010 SPIE.  
青杨(Populus cathayana Rehd.)雌雄植株对干旱胁迫的生理生态响应差异 学位论文  OAI收割
博士, 2008
胥晓
收藏  |  浏览/下载：145/0  |  提交时间：2011/03/31