中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共5条，第1-5条

帮助

条数/页：排序方式：
	The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube 期刊论文 OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 卷号: 47, 页码: 68-75 作者: Zhang, Yingdong; Yuan, Fusen; Han, Fuzhou; Ali, Muhammad; Guo, Wenbin \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2021/02/02 Zircaloy-4 alloy Microtexture Nodular corrosion EBSD technique Matrix transformation method
	Shape Memory Alloy-Reinforced Metal-Matrix Composites: A Review 期刊论文 OAI收割 Acta Metallurgica Sinica-English Letters, 2014, 卷号: 27, 期号: 5, 页码: 739-761 D. R. Ni; Z. Y. Ma 收藏 \| 浏览/下载：28/0 \| 提交时间：2015/01/14 Metal-matrix composites Shape memory alloy Fabrication method Microstructure Interface reaction Mechanical properties fiber phase-transformation high damping capacity aluminum-matrix mechanical-properties smart composite tini fibers thermomechanical behavior ultrasonic consolidation hybrid-composites friction
	Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China 作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.
	Miniaturize photoelectric stable platform (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China Xue W.-Q.; Wang Y.-Y.; Dai M. 收藏 \| 浏览/下载：79/0 \| 提交时间：2013/03/25 In order to reduce the size and weight of the gimbal in a traditional stable platform and correct the disadvantage in size of the payload the paper first improves the gimbal which is an important component of a stable photoelectric platform that also is an important factor in affecting the size and weight of a stability platform. In this paper a closed-form solution of 3-DOF manipulator is designed according mechanical arm design principles. This manipulator is formed by a three joint axes whose extended line is intersected at one point. A standard orthogonal coordinate system is set up for each rod in the manipulator. And then rotation transformation matrix expression is obtained. At last in this paper the manipulator arm-shaped method for solving solutions is description and also each parameter of the gimbal is calculated when the photoelectric detection devices at bottom reach the expected position. Test results show that the photoelectric stability platform with gimbal we designed is smaller lighter and simpler than that traditional. Also the packaging and size of the photoelectric will not be affected with this open structure. 2010 IEEE.
	The relation between one-to-one correspondent orthonormal eigenstates of H-0 and H(lambda) = H-0+lambda V 期刊论文 OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 2001, 卷号: 35, 期号: 5, 页码: 11-14 作者: Xu, GO; Xing, YZ; Li, JQ \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2010/10/29 special Jacobi method analytical unitary matrix nonlinear resonance quantum canonical transformation