机构

• 理论物理研究所 [1]
• 长春光学精密机械与物... [1]
• 大连化学物理研究所 [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2018 [1]
• 2005 [1]
• 1992 [1]

学科主题

• Physics [1]

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Alkali Metal Doping for Improved CH3NH3PbI3 Perovskite Solar Cells 期刊论文  OAI收割 ADVANCED SCIENCE, 2018, 卷号: 5, 期号: 2 作者:  Zhao, Wangen;  Yao, Zhun;  Yu, Fengyang;  Yang, Dong;  Liu, Shengzhong (Frank)   |  收藏  |  浏览/下载：29/0  |  提交时间：2019/06/20 Alkali Metals  Doping  Perovskites  Planar Construction  Passivation   Self Imaging technique for refocusing an aerospace camera (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Li W.;  Li W.;  Wang X.;  Wang X.;  Wang X. 收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25 A novel auto-focusing technique using a self imaging approach is developed for an aerospace camera having large aperture and long focus. Its optical system consists of an emitting system  receiving system  and two penta-prisms. Emitting system has three parts: a light source  beamsplitter  and aim slit. The receiving system includes a field lens  two separate lenses  and CCD. Using two little penta-prisms instead of a large planar mirror makes the autofocus system simple and compact. CCD was used as photoelectric converting device. A defocused signal is acquired by measuring the change of the two slit self-images position imaged on the CCD. A simple and compact construction of the auto-focusing system was proposed. The algorithm to calculate the moving of the slit-self images position was analyzed in order to achieve subpixel position estimation. The results of the experiments show a 10m focusing precision. The system demonstrates high resolution  easy adjustment and high reliability.   ON THE EQUIVALENCE OF NONCRITICAL STRINGS AND G(K)/G(K) TOPOLOGICAL FIELD-THEORIES 期刊论文  OAI收割 PHYSICS LETTERS B, 1992, 卷号: 289, 期号: 40972, 页码: 302-308 作者:  YU, M;  HU, HL;  HU, HL , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.   |  收藏  |  浏览/下载：15/0  |  提交时间：2012/08/29 2-d Quantum-gravity  Superconformal Algebra  Planar Diagrams  Random Surfaces  2 Dimensions  Models  Representations  Construction  Quantization  Gauge