机构

• 金属研究所 [2]
• 长春光学精密机械与物... [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

• 2017 [1]
• 2009 [1]
• 2003 [1]

学科主题

• Metallurgy... [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 A general approach on the modelling of incubation in ferrite transformation using non-isothermal kinetics data for 22MnB5 steel 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2017, 卷号: 108, 期号: 6, 页码: 441-446 Chen, Xiangjun; Rolfe, Bernard; Abdollahpoor, Amir; Xiao, Namin; Li, Dianzhong 收藏  |  浏览/下载：28/0  |  提交时间：2017/08/17 Incubation time  Transformation kinetics  22MnB5 steel  Optimized fitting method  Generalized calculation method   Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (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:  Jin C.-S.;  Wang L.-P.;  Liang Z.-Z. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem  we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then  we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation  even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally  a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 2009 SPIE.   Ab initio calculations of the electronic structure of the silver palladium oxide Ag2PdO2 期刊论文  OAI收割 Physica B-Condensed Matter, 2003, 卷号: 337, 期号: 1-4, 页码: 102-110 L. H. Yu; K. L. Yao; Z. L. Liu 收藏  |  浏览/下载：18/0  |  提交时间：2012/04/14 silver palladium oxide  ab initio calculation  mixed LAPW/APW plus lo  method  band structure  band gap  generalized gradient approximation  plane-wave method  crystal-structure  band-structure  phase-diagram  system  copper  energy  solids