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浏览/检索结果: 共10条，第1-10条 帮助

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Improving the energy uniformity for large liquid scintillator detectors 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2021, 卷号: 1001
作者:  Huang, Guihong;  Wang, Yifang;  Luo, Wuming;  Wen, Liangjian;  Yu, Zeyuan
  |  收藏  |  浏览/下载：40/0  |  提交时间：2023/03/16
Variation of global fossil-energy carbon footprints based on regional net primary productivity and the gravity model 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2019, 卷号: 213, 页码: 225-241
作者:  Li, Xing;  Xiong, Shuaizhou;  Li, Zhihui;  Zhou, Mingxing;  Li, Haige
  |  收藏  |  浏览/下载：64/0  |  提交时间：2019/05/22
Variation of global fossil-energy carbon footprints based on regional net primary productivity and the gravity model 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2019, 卷号: 213, 页码: 225-241
作者:  Li, Xing;  Xiong, Shuaizhou;  Li, Zhihui;  Zhou, Mingxing;  Li, Haige
  |  收藏  |  浏览/下载：55/0  |  提交时间：2019/05/22
Magnetic design study of the high-field common-coil dipole magnet for high-energy accelerators 期刊论文  OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2015, 卷号: 25, 期号: 3, 页码: 4000905
作者:  Xu QJ(徐庆金);  Chen FS(陈福三);  Huo LH(霍丽华);  Hou ZL(侯治龙);  Kang W(康文)
收藏  |  浏览/下载：56/0  |  提交时间：2016/04/18
New LED illumination optical engine for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Meng Z.;  Meng Z.
收藏  |  浏览/下载：42/0  |  提交时间：2013/03/25
A new optical engine consisting of LEDs  rectangular CPC  rectangular lens array and micro display chip DMD is designed by using of KOLA illumination algorithm for micro-projection display. Detail description and analysis of the rectangular CPC and rectangular lens array are provided. The influence due to the size of rectangular CPC and rectangular lens array is analysed for illuminance uniformity on the DMD chip and light energy efficiency of the optical engine system by software ZEMAX. Based on the analysis of parameter of rectangular lens array  the size of rectangular lens array more decrease the illumination uniformity. Experimental results show that the proposed illumination light optical engine can obtain perfect rectangular focula with higher light uniformity more than 90 % and higher energy efficiency of 40 % to meet the needs of micro-projection display  at the same time the designed illumination optical engine compared with other uniformizing light algorithm have advantages such as: lesser capacity  high illumination uniformity. 2010 Copyright SPIE - The International Society for Optical Engineering.  
LED optical engine based on rectangular CPC for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  Meng Z.;  Meng Z.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
With applications in digital display  consumer electronics  medicine  automotive lighting  traffic signals  and general illumination  the light-emitting diode (LED) is the world's most efficient light source being mass produced today[1]. However  high cost is the main factor restricting widespread application of LED lighting  and the packaging is the most expensive aspect of LED products. Light emitting diodes (LED) are regarded as the most important light sources in solid-state lighting for their advantages in energy efficiency  long life  vivid colors  high reliability  environmental protection  safety and multiple applications. However  application of LEDs in projection display exist many questions such as low illuminance uniformity and low energy efficiency by reason of luminescence distribution and constructure specificity for LED  the study on application of LED in the micro-projection display and projection display is reported[2-8]. Considering the question mensioned above the rectangular CPC(Compound Parabolic Concentrator) system with three-color LED is applied in the projection display. 2009 SPIE.  
Study on chromaticity balance for LED exposure system (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology, September 9, 2007 - September 12, 2007, Beijing, China
作者:  Meng Z.;  Meng Z.
收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25
A standard white light compounding algorithm based on combination of CCD illumination acquisition with computer control is presented for LEDs. The computer adjust and control the working current of LEDs by using three-color LEDs illumination acquired by CCD camera  achieved chromaticity coordinates error between compounded white light and standard white light D65 less than the threshold beforehand setted by this technique  then acquiring needed standard white light. Compounded white light meet the chromaticity error demand that is able to be changed  at the same time the CCD illumination acquisition system is eliminated. The proposed algorithm improved the light energy utilization efficiency of LED  and eliminated the offset of central wavelength and chromaticity coordinates due to work current change of LEDs. Experimental results show that the proposed algorithm achieved lesser chromaticity error uv=0.001 relative to standard white light D65  enhanced chromaticity uniformity of illumination field.  
Cosmic ray test on CsI(Tl) modules of BESII electromagnetic calorimeter 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2007, 卷号: 31, 期号: 2, 页码: #REF!
作者:  Shang L(尚雷);  Cai X(蔡啸);  Wang M(王曼);  Wang ZG(王志刚);  Fang J(方建)
收藏  |  浏览/下载：90/0  |  提交时间：2016/04/12
Monte Carlo study of performance of BES III CsI crystal calorimeter 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2004, 卷号: 28, 期号: 4, 页码: 335-339
作者:  Liu CX(刘春秀);  Fu CD(傅成栋);  Zhou L(周莉);  Zhang QJ(张勤俭);  Xia XM(夏小米)
收藏  |  浏览/下载：26/0  |  提交时间：2016/06/27
高功率超短啁啾脉冲放大技术研究 学位论文  OAI收割
作者:  周剑
  |  收藏  |  浏览/下载：68/0  |  提交时间：2018/12/26