中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共6条，第1-6条 帮助

条数/页： 排序方式：
Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria 期刊论文  OAI收割
FRONTIERS IN PLANT SCIENCE, 2023, 卷号: 14, 页码: 1127443
作者:  Xue,Bine;  Song,Zhuqiu;  Cai,Jie;  Ma,Zhonghui;  Huang,Jiuxiang
  |  收藏  |  浏览/下载：19/0  |  提交时间：2024/05/09

Towards the dependence of radiation damage on the grain boundary character and grain size in tungsten: A combined study of molecular statics and rate theory

 期刊论文  OAI收割
JOURNAL OF NUCLEAR MATERIALS, 2022, 卷号: 563
作者:  Li, Xiaolin;  Wang, Yuxuan;  Zhang, Yange;  Xu, Yichun;  Li, Xiang-Yan
  |  收藏  |  浏览/下载：52/0  |  提交时间：2022/12/23
Optical Excitation Characteristics of ZnO under the Radiation Fields 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 卷号: 38, 页码: 1348-1352
作者:  Zhang Qi-hang;  Liu Yu-zhu;  Yin Wen-yi;  Qin Chao-chao;  Li Bing-sheng
  |  收藏  |  浏览/下载：29/0  |  提交时间：2018/07/16
The approximate calculation of atmospheric path radiance in close range and horizontal direction (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者:  Sun Z.;  Chen Y.;  Zhang Y.
收藏  |  浏览/下载：42/0  |  提交时间：2013/03/25
Atmospheric path radiance is the key factor in the accuracy of objective radiation measurement. In the traditional radiation character measurements  it is compared with the results of MODTRAN and measurement in experiment. It is revealed that the accuracy of software is 7.8%  under the help of the atmospheric observation equipment  and the formula is 4.9%  MODTRAN and other software likewise  which could demonstrate the validity of the pproximate calculation formula in close range and horizontal direction. In this article  the indeterminacy rate could be around 10~20%  in the process of deducing and experiment  it is highly restricts the measurement accuracy of objective radiation. For this reason  the validity of the approximate calculation formula in close range and horizontal direction is fully proved  it is quite significant to develop the study of measure and calculation in path radiance. The approximate calculation formula for path radiance in close range and horizontal direction is expressed in this article  which supply a new method in approximate calculation of path radiance for objective radiation measurement. (2013) Trans Tech Publications  Switzerland.  
Method for obtaining real temperature of space object by using the ratio of emissivity at different wavelengths (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
Guo-Qiang W.; Tao C.; Jian-Li W.
收藏  |  浏览/下载：43/0  |  提交时间：2013/03/25
The infrared radiation character (temperature and efficiency radiation area) of a space object is an important characteristic  we can judge the state of the object working in orbit by measuring temperature and variety. Due to lower temperature of the object and far distance between the object and the earth  the infrared radiation signal is faintness  therefore temperature and the infrared radiation character is difficult to measure. There are several methods to measure the temperature of the object in theory and each one has its applicability respectively  such as applying Wien Law to compute temperature  based on Stefan-Bolzmann law to compute temperature and utilizing multi-spectrum detector to measure temperature As a whole these methods are based on the hypothesis that the object is a Black-body or the radiance emissivity is constant. In fact  homochromatic radiance of object is not a constant but a function that changes with wavelength. Since the problem that an object whose homochromatic radiance s not a constant which results in temperature can not be computed accurately  we bring forward a method to contrast the luminance of the object at different wavelengths and deduce the relationship among homochromatic radiance and wavelength and the temperature of Black-body  from which we can compute real temperature of object. 2009 SPIE.  
Radiation character of 3W1 permanent magnet multipole wiggler 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 1998, 卷号: 22, 期号: 10, 页码: 951-954
作者:  Tang ES(唐鄂生);  Huang YY(黄宇营);  Wu YR(吴亚茹);  Yi FT(伊福廷);  Tang, ES
收藏  |  浏览/下载：39/0  |  提交时间：2016/06/29