机构

• 地理科学与资源研究所 [1]
• 长春光学精密机械与物... [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

• 2021 [1]
• 2005 [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 Fitting limit lines (envelope curves) to spreads of geoenvironmental data 期刊论文  OAI收割 PROGRESS IN PHYSICAL GEOGRAPHY-EARTH AND ENVIRONMENT, 2021, 页码: 19 作者:  Carling, Paul A.;  Jonathan, Philip;  Su, Teng   |  收藏  |  浏览/下载：26/0  |  提交时间：2022/09/21 Limit lines  envelope curves  trimming method  quantile regression  non-parametric maximum likelihood methods   The influence investigation of laser cutting path on the resistance of chip resistors (EI CONFERENCE) 会议论文  OAI收割 Lasers in Material Processing and Manufacturing II, November 10, 2004 - November 12, 2004, Beijing, China 作者:  Wang Z.;  Wang Z. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 Laser trimming adjusts the resistance of chip resistors accurately. The laser-cutting path that is vertical to the current flow is called transverse cutting. It increases the resistance quickly. The laser-cutting path that is parallel to the current flow is called ordinate cutting. It increases the resistance slowly. Using numerical results of resistance-calculation formula  the influence of transverse cutting on the resistance is analyzed. With resistor-subsection method  the relationship of resistance and ordinate cutting is studied. And quantitative formulae of them are given. The conclusions can provide some control strategies to improve the trimming precision and trimming efficiency.