机构

• 长春光学精密机械与物... [1]
• 古脊椎动物与古人类研... [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2010 [1]
• 2006 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2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 Technics and activities of the upper Palaeolithic people (Oriental Plaza site of Wangfujing, Peking, China) 期刊论文  OAI收割 ANTHROPOLOGIE, 2010, 卷号: 114, 期号: 5, 页码: 530-542 作者:  Li Chaorong;  Feng Xingwu;  Li Hao   |  收藏  |  浏览/下载：12/0  |  提交时间：2017/07/25 The Oriental Plaza Site Of Wangfujing  Paleolithic  Tool-making Technology  Behavior Characteristics   Novel resistance iterative algorithm for CCOS (EI CONFERENCE) 会议论文  OAI收割 Current Developments in Lens Design and Optical Engineering VII, August 14, 2006 - August 15, 2006, San Diego, CA, United states 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：59/0  |  提交时间：2013/03/25 CCOS (Computer Control Optical Surfacing) technology is widely used for making aspheric mirrors. For most manufacturers  dwell time algorithm is usually employed to determine the route and dwell time of the small tools to converge the errors. In this article  a novel damp iterative algorithm is proposed. We chose revolutions of the small tool instead of dwell time to determine fabrication stratagem. By using resistance iterative algorithm  we can solve these revolutions. Several mirrors have been manufactured by this method  all of them have fulfilled the demand of the designers  a 1m aspheric mirror was finished within 3 months.