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浏览/检索结果: 共8条，第1-8条 帮助

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Investigation on microstructure and tensile shear properties of 9Cr oxide dispersion strengthened steel resistance spot welded joint 期刊论文  OAI收割
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2023, 页码: 9
作者:  Jia, Xin;  Wei, Shitong;  Lu, Shanping
  |  收藏  |  浏览/下载：23/0  |  提交时间：2024/01/08
Characteristics of wave propagation in thermoelastic medium 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2021, 卷号: 64, 期号: 4, 页码: 1364-1374
作者:  Hou WanTing;  Fu LiYun;  Wei Jia;  Wang ZhiWei
  |  收藏  |  浏览/下载：59/0  |  提交时间：2021/10/19
Constraining primordial black holes in dark matter with kinematics of dwarf galaxies 期刊论文  OAI收割
PHYSICAL REVIEW D, 2019, 卷号: 99, 期号: 12, 页码: 123023
作者:  Lu, BQ;  Wu, YL
  |  收藏  |  浏览/下载：65/0  |  提交时间：2019/07/19
Chain Conformation and Local Rigidity of Isomerized Polyimides in Dimethyl Formamide by Size Exclusion Chromatography Coupled with Multi-Detectors 期刊论文  OAI收割
chromatographia, 2012, 卷号: 75, 期号: 1-2, 页码: 7-15
Liu GH; Qiu XP; Bo SQ; Ji XL
收藏  |  浏览/下载：23/0  |  提交时间：2013/09/03
A simple method for estimating the convection-dispersion equation parameters of solute transport in agricultural ecosystem 期刊论文  OAI收割
AFRICAN JOURNAL OF BIOTECHNOLOGY, 2011, 卷号: 10, 期号: 49, 页码: 9985-9991
作者:  Shi, H.;  Zheng, J. Y.;  Shao, H. B.;  Wang, H. X.;  Chen, F. Q.
  |  收藏  |  浏览/下载：23/0  |  提交时间：2012/03/06
Design of reimaging F/1.0 long-wavelength infrared optical system (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25
A reimaging F/1.0 long-wavelength infrared optical system is proposed. The design has a flexible opto-mechanical layout. The design process is as follows. Firstly  the catadioptric reimaging system consists of two reflecting mirrors and a relay lenses. Two reflecting mirrors make up of the first imaging system and are therefore free of chromatic aberrations  while low dispersion lenses were used in the reimaging system  so the optical system do not need achromatic design for a high image quality. Then  to correct high-order aberrations resulting from large relative aperture  more parameters need to be used with aspheric or diffractive surfaces due to modern optic technology development. Here  aspheric is selected for easily manufacture. Finally  the design is completed with the help of ZEMAX software. The effective focal length of the objective is 120mm and the field of view (FOV) is 4. The simulated final design shows adequate image quality and the modulation transfer function (MTF) is close to diffraction limit. The effect of the surrounding environmental temperature is analyzed using the concept of thermal defocusing  and the thermal compensation is discussed. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Effect of Charge Redistribution on the Thermal-Expansion Behaviors in III-V Semiconductors 期刊论文  OAI收割
Journal of the Physical Society of Japan, 2009, 卷号: 78, 期号: 2
S. Q. Wang
收藏  |  浏览/下载：24/0  |  提交时间：2012/04/13
Optical constants of anodic aluminum oxide films formed in oxalic acid solution 期刊论文  OAI收割
Thin Solid Films, 2008, 卷号: 516, 页码: 7689-7694
作者:  Liu WM(刘维民)
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/28