机构

• 长春光学精密机械与物... [2]
• 高能物理研究所 [1]
• 自动化研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [2]
• 期刊论文 [2]

发表日期

• 2019 [1]
• 2012 [1]
• 2011 [1]
• 2007 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4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 Low speed sliding mode control of permanent magnet synchronous motor based on extended state observer 期刊论文  OAI收割 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2019, 卷号: 27, 期号: 12, 页码: 2628-2638 作者:  X.-Q.Xia;  B.Zhang;  X.-T.Li;  S.-T.Zhang   |  收藏  |  浏览/下载：27/0  |  提交时间：2020/08/24 Electric machine control,Controllers,Economic and social effects,Errors,Permanent magnets,Photoelectricity,Sliding mode control,Stabilization,State estimation,Synchronous motors   Human age estimation with surface-based features from MRI images 会议论文  OAI收割 美国, 2012/10/1 作者:  Wang, Jieqiong;  Dai, Dai;  Li, Meng;  Hua, Jing;  *He, Huiguang   |  收藏  |  浏览/下载：25/0  |  提交时间：2018/02/14 Age Estimation  Age-based  Brain Images  Brain Networks  Correlation Coefficient  Cross Validation  Data Sets  Gaussian Curvatures  Healthy Subjects  Human Age Estimation  Mean Absolute Error  Mean Curvature  Mri Image  Regional Feature  Regression Model  Relevance Vector Machine  Root Mean Squared Errors  Surface Area  Surface-based   Effects of machine errors on the ILC main linac 期刊论文  OAI收割 中国物理C, 中国物理C, 2011, 2011, 期号: 6, 页码: 585-589, 585-589 作者:  Wang D(王逗);  Gao J(高杰)   |  收藏  |  浏览/下载：14/0  |  提交时间：2015/12/14 ILC  main linac  machine errors  ILC  main linac  machine errors   Key techniques of laser direct writing patterns on spherical substrate (EI CONFERENCE) 会议论文  OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China 作者:  Zhao J.-L.;  Feng X.-G. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 Comparing with the writing method of plane pattern  spherical pattern' has some remarkable different on several points. Firstly  it is difficult to spin-coated a uniform photoresist film on a spherical substrate  especially the ratio of spherical radius to caliber is smaller  and the spin-coated way must match the ratio of spherical radius to caliber. Secondly  if the sphere couldn't be regarded as a plane  a so-called concentric optical scan movement way must be applied for the generation of spherical pattern  because the reflex of substrate will affect the quantity of illumination. Commonly  an alignment technique is indispensable with pattern generation of spherical surface by the concentric optical scan in order to ensure the orthogonal intersection of focusing laser beam and writing surface. Thirdly  a uniform velocity control must be considered for the laser direct writing method on a spherical substrate. Otherwise  the exposure time of photoresist will be different  and the line widths of pattern will be also different at different areas. Fourthly  commonly  because the errors of concentric machine and substrate surface shape are bigger  so focusing servo-control technique is also needful for writing a pattern on a spherical substrate. Focusing servo-control may keep the focal spot on the spherical surface by a focus detection and control system in the course of writing pattern. Using these techniques  we fabricated a line width of 7m and a period of 600m isometric mesh on the concave of a spherical substrate.