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浏览/检索结果: 共7条，第1-7条 帮助

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Editorial: Nuclear materials degradation 期刊论文  OAI收割
FRONTIERS IN MATERIALS, 2023, 卷号: 10, 页码: 2
作者:  Ming, Hongliang;  Zhang, Zhiming;  Chen, Jian;  Noel, James J.
  |  收藏  |  浏览/下载：5/0  |  提交时间：2024/01/07
HPC software capability landscape in China 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS, 2020, 卷号: 34, 期号: 1, 页码: 115-153
作者:  Chen, Daobi
  |  收藏  |  浏览/下载：55/0  |  提交时间：2020/12/10
Advanced Materials for Zinc-Based Flow Battery: Development and Challenge 期刊论文  OAI收割
ADVANCED MATERIALS, 2019, 页码: 27
作者:  Yuan, Zhizhang;  Yin, Yanbin;  Xie, Congxin;  Zhang, Huamin;  Yao, Yan
  |  收藏  |  浏览/下载：190/0  |  提交时间：2019/12/02
ADVANCED FUNCTIONAL MATERIALS BASED ON CELLULOSE 期刊论文  OAI收割
ACTA POLYMERICA SINICA, 2010, 期号: 12, 页码: 1376-1398
作者:  Zhang Jinming;  Zhang Jun
  |  收藏  |  浏览/下载：104/0  |  提交时间：2019/04/09
The calibration of faint simulation star magnitude based on single photon count technique (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:  Xu S.-Y.;  Guo J.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
A calibration method of faint star magnitude of the star scene simulation device is proposed in this paper. In the research of simulation star magnitude  luminometers and CCD devices are the general calibration devices which are used to measure the illumination intensity and calibrate its magnitude. But if the simulation magnitude is only sixth magnitude  its illumination intensity is only 1.010-8 Lux. This illumination intensity level is the lowest illumination intensity that the commercial luminometer can detect. Hence the simulation star magnitude lower than six magnitude cannot be calibrated by luminoters. Likewise CCD devices also need an additive cooler in this case. When the single photon characteristic is presented due to the low luminosity of simulating light sources  the simulation star magnitude can be calibrated by detecting its photon flux of radiation with the method of single photon count. In this paper the detection principle of single photon based on a compact designed PMT detecting of the radiation level of simulation star magnitude is advanced. Especially a spectrum match method is proved theoretically to be an effective means for selecting PMT photosensitive type. In the case of the detection object of the simulation star in visible wavelength  a analysis indicates that the material of tri-alkali cathode materials its best choice after being compared the Signal-to-Noise of photon detector of several PMT photosensitive materials based on the different spectrum match ratio of different object light sources and different cathode materials. An experiment is employed to show the relationship of control voltage of PMT and its dark counter  the relationship of the environment temperature of PMT and its dark counter  which proves its only decades of CPS at room temperature. The so low dark counter avoids a bulky cooler and is convenient for installing it on the star scene simulation equipment. Finally in the experiment of calibrating the simulation star magnitudes the ability of its calibration is confirmed to reaches up to 12m  meanwhile its calibration error is within 0.2m. 2009 SPIE.  
A review of dynamic fracture mechanics in China 期刊论文  OAI收割
International Journal of Fracture, 1996, 卷号: 78, 期号: 3-4, 页码: 379-383
作者:  Liu CT(柳春图);  Li XP(李湘平)
收藏  |  浏览/下载：1541/105  |  提交时间：2009/08/03
新材料与材料制备新工艺研讨会选辑前言 期刊论文  OAI收割
力学进展, 1995, 卷号: 25, 期号: 2, 页码: 241-242
作者:  洪友士
收藏  |  浏览/下载：2926/295  |  提交时间：2009/08/03