中国科学院机构知识库网格系统: 检索

Model test study on horizontal bearing behavior of pile under existing vertical load 期刊论文 OAI收割
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2021, 卷号: 147, 页码: 8
作者: Zhang Xiao-ling; Xue Jun-yuan; Han Yan; Chen Shong-loong

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收藏 | 浏览/下载：21/0 | 提交时间：2022/09/21

Pile foundation Existing vertical load Horizontal bearing behavior Model test

Model test study on horizontal bearing behavior of pile under existing vertical load 期刊论文 OAI收割
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2021, 卷号: 147, 页码: 8
作者: Zhang Xiao-ling; Xue Jun-yuan; Han Yan; Chen Shong-loong

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收藏 | 浏览/下载：22/0 | 提交时间：2022/09/21

Pile foundation Existing vertical load Horizontal bearing behavior Model test

Investigation of geomechanical characterization and size effect of soil-rock mixture: a case study 期刊论文 OAI收割
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2021, 页码: 12
作者: Gao, Wei; Iqbal, Javed; Hu, Ruilin

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收藏 | 浏览/下载：46/0 | 提交时间：2021/10/25

Soil-rock mixture (S-RM) Size effect Large in situ horizontal push-shear test Block proportion by weight (WBP)

Determination Method for Shear Strength Parameters of Rock-Soil Mixtures Using Close-Range Photogrammetry and 3-D Limit Equilibrium Theory 期刊论文 OAI收割
Journal of Mountain Science, 2015, 卷号: 12, 期号: 5, 页码: 1068-1083
作者: ZHOU Jia-wen; YANG Xing-guo; YANG Zhao-hui

收藏 | 浏览/下载：35/0 | 提交时间：2015/09/22

Rock-soil mixtures In-situ horizontal push-shear test Photogrammetry Limit equilibrium Shear strength parameters

Study of horizontal shafting with spherical four-way structure (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Yang L.; Yang L.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

Altazimuth photoelectric theodolite level shaft U-type and T-type structure but with the expanding field of applications of photoelectric theodolite the horizontal shaft structure occur great changes. For example in the marine environment shipboard conditions the instrument has a waterproof corrosion-resistant easy maintenance and other functions while carrier-based optoelectronic devices from a single visible television configure the development of integrated infrared system and ranging system as one of the single-station measurement system due to the spherical structure has sufficient internal space exactly adapted to this need. In this paper the horizontal axis of a spherical four-way structure. From aspects of the spherical four-way split in the form and shafting design and finite element analysis of the detailed design. A spherical four-way horizontal axis system diameter 550mm weight 19kg sphere in the 40kg load the maximum deformation of 3.3m fully meet the requirements. The shaft of the structure of the shaking is less than 2 arc seconds the vibration test the re-examination instrument accuracy change is less than 1 arc seconds. Verify that the structure is stable and reliable. 2012 IEEE.

Horizontal test for BEPC 500 MHz spare cavity 期刊论文 OAI收割
Chinese Physics C, 2012, 期号: 10, 页码: 996-999
作者: Mi ZH(米正辉); Sun Y(孙毅); Wang GW(王光伟); Pan WM(潘卫民); Li ZQ(李中泉)

收藏 | 浏览/下载：40/0 | 提交时间：2015/12/14

horizontal test spare cavity 500 MHz cavity

Horizontal test for BEPC II 500 MHz spare cavity 期刊论文 OAI收割
CHINESE PHYSICS C, 2012, 卷号: 36, 期号: 10, 页码: 996-999
作者: Mi ZH(米正辉); Sun Y(孙毅); Wang GW(王光伟); Mi, ZH; Sun, Y

收藏 | 浏览/下载：41/0 | 提交时间：2016/04/08

horizontal test spare cavity 500 MHz cavity

Earth elevation map production and high resolution sensing camera imaging analysis (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Dai L.

收藏 | 浏览/下载：147/0 | 提交时间：2013/03/25

The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes orbital angular rate changes latitude longitude and the orbital inclination changes. And then elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last the deviant framework and camera controller are used to test the character of deviant angle errors TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging. 2010 SPIE.

Influence of spatial temperature distribution on high accuracy interferometric metrology (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者: Yang H.; Zhang J.; Zhang J.; Zhang J.; Yan F.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

We calculate the influence of temperature change on the refractive index of air establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer accompanied by a temperature change random function within each grid. Finally all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus to realize the high accuracy figure metrology the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.

Venturi tube application in high power test of the SRF module 期刊论文 OAI收割
NUCLEAR SCIENCE AND TECHNIQUES, 2009, 卷号: 20, 期号: 3, 页码: 4
Ma, GM(马广明）; Liu, JF（刘建飞）; Hou, HT; Ma, ZY; Fu, ZC; Zhang, ZG; Zhao, ZT（赵振堂）

收藏 | 浏览/下载：15/0 | 提交时间：2012/04/11

RF superconductivity Venturi Horizontal test Static loss