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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共17条,第1-10条 帮助

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Manual development and efficacy of Mindful Living Group activities to promote trauma healing during the COVID-19 pandemic in China 期刊论文  OAI收割
Frontiers in Public Health, 2023, 卷号: 11
作者:  
Ya-Nan Niu;  Di Long
  |  收藏  |  浏览/下载:16/0  |  提交时间:2023/06/24
Comprehensive Evaluation of Electric Power Prediction Models Based on D-S Evidence Theory Combined with Multiple Accuracy Indicators 期刊论文  OAI收割
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY, 2022, 卷号: 10, 期号: 3, 页码: 597-605
作者:  
Cui, Qiong;  Zhu, Jizhong;  Shu, Jie;  Huang, Lei;  Ma, Zetao
  |  收藏  |  浏览/下载:31/0  |  提交时间:2023/11/21
Generalised semi-tensor product of matrices 期刊论文  OAI收割
IET CONTROL THEORY AND APPLICATIONS, 2020, 卷号: 14, 期号: 1, 页码: 85-95
作者:  
Cheng, Daizhan;  Liu, Zequn;  Xu, Zhenhui;  Shen, Tielong
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/05/24
PPP-RTK based on undifferenced and uncombined observations: theoretical and practical aspects 期刊论文  OAI收割
JOURNAL OF GEODESY, 2019, 卷号: 93, 期号: 7, 页码: 1011-1024
作者:  
Zhang, Baocheng;  Chen, Yongchang;  Yuan, Yunbin
  |  收藏  |  浏览/下载:31/0  |  提交时间:2019/10/17
Dynamic response of the 3D pavement-transversely isotropic poroelastic ground system to a rectangular moving load 期刊论文  OAI收割
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2018, 卷号: 115, 期号: -, 页码: 394-401
作者:  
Zhan, Yongxiang;  Yao, Hailin;  Lu, Zheng
  |  收藏  |  浏览/下载:28/0  |  提交时间:2020/04/08
Comparison of radiation temperature measurement precision between middlewave and longwave thermal-imaging systems (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:  
Sun Z.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
A comparison study on temperature measurement precision between middlewave 3-5m and longwave 8-12m measuring thermal imaging systems has been conducted. The study was limited to systems working in indoor conditions and the target's temperature is in the range of 270K900K. First  the Disturb Resisting Function (DRF) of infrared systems is deduced. On the base of DRF curve  we find that the middlewave infrared system get the smaller influences under the same size disturb compared with the longwave system. A theory of the influence of target's physical characteristic and measurement conditions on the accuracy of temperature measurements has been developed. On the basis of the developed formulas an analysis of the influence of signal disturbances (because of incorrectly assumed emissivity  limited transmittance of the atmosphere  radiation reflected by the object and shift of optics radiation) on the accuracy of temperature measurement has been made. It has been found that the middlewave systems in typical temperature range offer generally better accuracy in temperature measurement than the longwave ones do. 2012 IEEE.  
Energy-consumption-related robust optimization scheduling strategy for elevator group control system (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 5th International Conference on Cybernetics and Intelligent Systems, CIS 2011, September 17, 2011 - September 19, 2011, Qingdao, China
作者:  
Wang F.;  Wang F.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
The imaging system design of three-line LMCCD mapping camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:  
Zhao Y.;  Yu D.;  Yu D.;  Zhao Y.;  Zhao Y.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
In this paper  the SNR tested in laboratory is better than 95 under typical working condition(the solar incidence degree is 30  the temperature of the focal plane module is controlled under 30 in a working period of 15 minutes. All of these results can satisfy the requirements about the synchronous photography  the authors introduced the theory about LMCCD (line-matrix CCD) mapping camera firstly. On top of the introduction were consists of the imaging system of LMCCD mapping camera. Secondly  the photography interval of line-matrix CCD of the nadir camera can satisfy the butter requirements of LMCCD focal plane module  the reflectivity of the earth's surface is 0.3) of each CCD image  the temperature control of focal plane module and SNR  some pivotal designs which were Introduced about the imaging system  Which give the guarantee of precision for satellite photogrammetry. 2011 SPIE.  such as the design of focal plane module  the video signal's procession  the controller's design of the imaging system  synchronous photography about forward and nadir and backward camera and the nadir camera of line-matrix CCD. At last  the test results of LMCCD mapping camera imaging system were introduced. The results as following: the precision of synchronous photography about forward and nadir and backward camera is better than 4 ns and the nadir camera of line-matrix CCD is better than 4 ns too  
Design of ground-based physical simulation system for satellite-borne TDI-CCD dynamic imaging (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Zhang L.;  Zhang L.;  Sun Z.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
As we know  the existence of image motion has a bad effect on the image quality of satellite-borne TDI CCD camera. Although many theories on image motion are proposed to cope with this problem  few simulations are done to justify the proposed theories on ground. And thus  in this paper  a ground-based physical simulation system for TDI CCD imaging is developed and specified  which consists of a physical simulation subsystem for precise satellite attitude control based on a 3-axis air bearing table  and an imaging and simulation subsystem utilizing area-array CCD to simulate TDI CCD. The designed system could realize not only a precise simulation of satellite attitude control  whose point accuracy is above 0.1 and steady accuracy above 0.01/s  but also an imaging simulation of 16-stage TDI CCD with 0.1s its integration time. This paper also gives a mathematical model of image motion of this system analogous with satellite-borne TDI CCD  and detailed descriptions on the principle utilizing area-array CCD to simulate TDI CCD. It is shown that experiment results are in accordance with mathematical simulation  and that the image quality deteriorate seriously when the correspondence between the image velocity and signal charges transfer velocity is broken out  which suggest not only the validity of the system design but also the validity of the proposed image motion theory of TDI CCD. 2010 SPIE.  
Electromagnetic radiation test of power driver module in optical tracking system and electromagnetic compatibility (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:  
Yu H.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
In order to solve the conductive ring module's interference problems  measured the electromagnetic radiation of Power drive module  and used test results analysis the electromagnetic compatibility of the conductive ring  identified and implemented appropriate EMC (electromagnetic compatibility) measures. When optical tracking system working  test equipment can not be fixed. Therefore  from the electromagnetic radiation theory  the paper analyzed the electromagnetic radiation of the power drive module. From it  determine the EMC pre-compliance test method for electromagnetic radiation of power drive module. Based on Test results  calculate the interference voltage of wire in Conductive ring  and then determine the corresponding EMC method. The results show that  when The power drive module Radiate Electromagnetic waves  wires would coupled common mode interference voltage  its frequency is 3MHz  amplitude is about 10V  it would interfered the operation of sensor. By reducing the area of ground loops  used shielded cables  final rule out the interference. 2010 IEEE.