中国科学院机构知识库网格系统: 检索

International Round-Robin Test of Critical Current of Superconducting Cable Sample 期刊论文 OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2024, 卷号: 34
作者: Matsushita, T.; Kiuchi, M.; Masuda, T.; Mukoyama, S.; Funaki, K.

|

收藏 | 浏览/下载：10/0 | 提交时间：2024/11/20

Superconducting cables Current measurement Standards Cable shielding Power cables Temperature measurement Electric fields Critical current experimental standard deviation n-value round-robin test superconducting cable

Evaluation Method of Heavy-Ion-Induced Single-Event Upset in 3D-Stacked SRAMs 期刊论文 OAI收割
ELECTRONICS, 2020, 卷号: 9, 期号: 8, 页码: 14
作者: Zhao, Peixiong; Liu, Tianqi; Cai, Chang; He, Ze; Li, Dongqing

|

收藏 | 浏览/下载：27/0 | 提交时间：2021/12/15

Monte-Carlo simulation single-event upset test standard three-dimensional integrated circuits ultrahigh-energy heavy ion

Laboratory investigation on strengthening behavior of frozen China standard sand 期刊论文 iSwitch采集
ACTA GEOTECHNICA, 2019, 卷号: 14, 期号: 1, 页码: 179-192
作者: Cai, Cong; Ma, Wei; Zhou, Zhiwei; Mu, Yanhu; Zhao, Shuping

收藏 | 浏览/下载：99/0 | 提交时间：2019/10/09

CT scanning test Frozen standard sand Pressure melting Recrystallization Strengthening behavior Triaxial cyclic loading test

An appraisal method of dynamic interpolation error for high precision encoder (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
作者: Wan Q.-H.; Liu C.-X.; Liu C.-X.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

This paper introduces an appraisal method of the dynamic interpolation error for the high precision encoder (Lissajou pattern calculation method). When the encoder is rolling two groups of fine photoelectric signals whose phase difference are /2 can be collected using data collected car. The shape and position deviation can be obtained through the comparison between Lissajou charts and the standard circle. Then dynamic interpolation error can be calculated out directly. This method is immune to the influence of encoder's speed and has no rigid demand to the test circumstances and test devices. The experimental results indicate that this method is feasible and important to the encoder's dynamic interpolation error checking. 2011 IEEE.

Modular aircraft simulation platform based on simulink (EI CONFERENCE) 会议论文 OAI收割
2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China
Chen C.-Q.; Ji Y.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

Aircraft simulation platform is the most important supporting technology in the aircraft development process. This simulation platform can be used for validating the design of subsystem and also it provides the necessary data for the Aircraft design. Wind has great impact on the flight parameter. In order to accurately simulate the wind model and calculate the flight parameters a simulation modeling method for flight parameter simulation platform under wind field environment is established. Firstly the various sub-systems which affecting flight parameters are analyzed some mathematical models of the flight parameter simulation platform is established. Secondly the atmospheric wind field is studied to analyze the impact on its trajectory. Then the model is built in the Simulink toolbox in the Matlab which is based on the principles of hierarchy and modularity using C MEX S-function for the complex kinetic equations. Finally when the models have been established encapsulating models for several subsystem and assembling them for the Aircraft simulation platform based on the unified interface. The simulation tests (including the performance test of a certain gliding Aircraft the wind influence test of a certain uncontrolled aircraft) prove the simulation capability of the platform and its calculating step can reach 1 ms. Comparing simulation with field test data of a certain uncontrolled aircraft it shows that the relative deviation of range is 0.47% the relative deviation of maximal altitude is 2.1%. Taking relevant standards as a reference standard it is demonstrated the platform is reliable meets the engineering accuracy requirements. 2010 IEEE.

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.

White-light spectral scanning interferometry for surface measurement system (EI CONFERENCE) 会议论文 OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
作者: Wang C.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

The paper introduces the white-light spectral scanning interferometry for surface measurement. This interferometry can be used to measure the roughness of both smooth surfaces and those with large step heights. This real-time surface measurement can be achieved using acousto-optic tuneable filtering (AOTF) technique without mechanical scanning. At first the structure and principle of this interferometry is introduced. Then the algorithm of the surface roughness measurement is proposed. What's more the experiment with standard test piece is conducted. Compared with the traditional laser-light interferometry the data shows that the proposed method has a higher accuracy which is proved to be nano-scale. A conclusion is given at last in which the superiorities and the limitations of the proposed system were discussed. 2010 SPIE.

Stein-type improved estimation of standard error under asymmetric LINEX loss function 期刊论文 OAI收割
STATISTICS, 2009, 卷号: 43, 期号: 2, 页码: 121-129
作者: Zou, Guohua; Zeng, Jie; Wan, Alan T. K.; Guan, Zhong

|

收藏 | 浏览/下载：22/0 | 提交时间：2018/07/30

LINEX loss minimum risk equivariant estimator pre-test estimation standard error Stein-type improved estimator

藏文字库标准符合性自动检测方案设计与实现 期刊论文 OAI收割
中文信息学报, 2008, 卷号: 22, 期号: 3, 页码: 124-128
刘瀚猛; 芮建武; 白真龙; 吴健

|

收藏 | 浏览/下载：29/0 | 提交时间：2010/08/24

计算机应用中文信息处理藏文字库标准符合性测试 computer application Chinese information processing Tibetan font standard conformance test

湿H2S环境中金属材料腐蚀的研究 期刊论文 OAI收割
石油化工腐蚀与防护, 2007, 卷号: 24, 期号: 3, 页码: 22-25
作者: 张万贞

|

收藏 | 浏览/下载：5/0 | 提交时间：2024/01/08

metal material H2 S corrosion test standard method and technique 金属材料 H2S腐蚀试验标准方法和手段