机构

• 地理科学与资源研究所 [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

• 2020 [2]
• 2009 [1]

学科主题

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 粤港澳大湾区的贸易竞合关系及其优化路径 期刊论文  OAI收割 地理研究, 2020, 卷号: 39, 期号: 9, 页码: 2065 作者:  宋周莺;  祝巧玲;  徐婧雅   |  收藏  |  浏览/下载：29/0  |  提交时间：2021/03/16 the Guangdong-Hong Kong-Macao Greater Bay Area  trade pattern  co- opetition relationship  international status  optimizing path  粤港澳大湾区  贸易格局  竞合关系  国际地位  优化路径   粤港澳大湾区的贸易竞合关系及其优化路径 期刊论文  OAI收割 地理研究, 2020, 卷号: 39, 期号: 9, 页码: 2065 作者:  宋周莺;  祝巧玲;  徐婧雅   |  收藏  |  浏览/下载：22/0  |  提交时间：2021/03/16 the Guangdong-Hong Kong-Macao Greater Bay Area  trade pattern  co- opetition relationship  international status  optimizing path  粤港澳大湾区  贸易格局  竞合关系  国际地位  优化路径   Novel method for optimizing polishing tool-path in CCOS based on weighted-iterative 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:  Zhang X.-J.;  Wang X.;  Wang X.;  Wang X.;  Wang X.-K. 收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25 In Computer Controlled Optical Surfacing (CCOS)  polishing tool-path is the base of solving other control parameters such as dwell time. In order to improve the fabrication results of polishing off-axis aspheric  a novel method to optimize the tool-path is discussed in this paper. The optimizing method named weighted-iterative algorithm is according to the balance principle of the particle system. The power factor of each dwell point represents the requirement of dwell density. Considering the factors which influence the polishing result  the power factors cosist of three elements include constant  error distribution and dwell distance of workpiece edge. The tool-path is solved by numerical iterative method. In the end  an error data is simulated with actual parameters using the matrix-based algorithm with two different tool-paths. The one is X-Y uniform spacing model and the other one is to optimize it based on the first. The comparison shows that the results of the optimized one are much better than traditional one  especially the rms convergence rate. Theory of the algorithm is simple and exercisable  and it satisfies practical requirement as well. 2009 SPIE.