机构

• 长春光学精密机械与物... [1]
• 福建物质结构研究所 [1]
• 大连化学物理研究所 [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

• 2010 [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 Preparation and application of 4-amino-4'-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II) 期刊论文  OAI收割 microchimica acta, 2010, 卷号: 168, 期号: 1-2, 页码: 99-105 作者:  Wang, Huanfeng;  Bao, Changli;  Li, Fei;  Kong, Xiangfei;  Xu, Jijing 收藏  |  浏览/下载：28/0  |  提交时间：2015/11/12 Azobenzene  Modified chitosan  Precious metal ions  Adsorption  Au-  Pd-determination   A 3-axis simulator for spacecraft attitude control research (EI CONFERENCE) 会议论文  OAI收割 2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China 作者:  Dai L. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 This article presents the details of a new 3-axis simulator for spacecraft attitude control research and simulation. The air bearing allows the test bed to rotate about three axes with tiny friction. The attitude determination system consists of three fibre optical gyros  an inclinometer and a magnetometer. The actuator of the system consists of three reaction flywheels and four control moment gyros (CMG). Mathematical models of the sensors and actuators are given to help algorithm design. An extended Kalman filter was designed to provide attitude information for controller. Mathematical simulation results prove the attitude determination system can achieve high precision. A coulomb friction model of reaction wheels is given with experimental results. A friction compensation algorithm was developed to raise the pointing accuracy of the control system. The article also describes the details of the hardware structure. A PD stabilizing controller is implemented to test the validation of the whole control system at last. 2010 IEEE.   A 3D Supramolecular Pd(II) Complex via Hydrogen-bonding and Weak M center dot center dot center dot M Interactions 期刊论文  OAI收割 Chinese Journal of Structural Chemistry, 2009, 卷号: 28, 期号: 9, 页码: 1099-1104 C. F. Yan, L. Chen, R. Feng, M. Yang, F. L. Jiang and M. C. Hong 收藏  |  浏览/下载：25/0  |  提交时间：2012/11/06 2  2  2  2  4  electronic absorption  4  4  4  6-tris(2-pyridyl)-1  spectrum  6-tris(2-pyrimidyl)-1  6-tris(2-pyridyl)-1  6-tripyridyl-s-triazine  3  hydrogen bonds  3  3  5-triazine (tptz)  Pd center dot center dot center dot Pd  5-triazines  5-triazines  interactions  spectrophotometric determination  platinum(ii) complexes  palladium(ii)  mononuclear  hydrolysis  copper(ii)  mechanism