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• OAI收割 [12]

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• 期刊论文 [9]
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• 2025 [1]
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浏览/检索结果: 共12条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Surface deformation monitoring and inversion techniques for the pressure analysis of CO2-enhanced coalbed methane reservoir 期刊论文  OAI收割 GAS SCIENCE AND ENGINEERING, 2025, 卷号: 138, 页码: 13 作者:  Zhao, Yu;  Li, Hong;  Ranjith, P. G.;  Ji, Kun;  Li, Xuanhui   |  收藏  |  浏览/下载：5/0  |  提交时间：2025/06/27 High-precision tiltmeter  CO 2-ECBM  Numerical solution to inverse problem  Analytical sensitivity coefficient matrix  Permeability of coal cleats  Strain field within reservoir domain   Frequentist model averaging for undirected Gaussian graphical models 期刊论文  OAI收割 BIOMETRICS, 2022, 页码: 13 作者:  Liu, Huihang;  Zhang, Xinyu   |  收藏  |  浏览/下载：30/0  |  提交时间：2023/02/07 graphical model  KL divergence  model averaging  model uncertainty  precision matrix   Meta-Modal Information Flow: A Method for Capturing Multimodal Modular Disconnectivity in Schizophrenia 期刊论文  OAI收割 IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2020, 卷号: 67, 期号: 9, 页码: 2572-2584 作者:  Falakshahi, Haleh;  Vergara, Victor M.;  Liu, Jingyu;  Mathalon, Daniel H.;  Ford, Judith M.   |  收藏  |  浏览/下载：44/0  |  提交时间：2020/09/28 Functional magnetic resonance imaging  Diseases  Graphical models  Psychiatry  Correlation  Translational research  Connectivity  covariance matrix  data fusion  default mode network  dMRI  fMRI  GGM  graphical model  joint estimation  partial correlation  precision matrix  sMRI   High accuracy three-dimensional attitude angle measuring device 期刊论文  OAI收割 guangxue jingmi gongcheng/optics and precision engineering, 2016, 卷号: 24, 期号: 5, 页码: 963-970 作者:  Sun, Guo-Yan;  Gao, Li-Min;  Bai, Jian-Ming;  Yang, Dong-Lai;  Pan, Liang 收藏  |  浏览/下载：30/0  |  提交时间：2016/10/13 Angle measurement  Calibration  CMOS integrated circuits  Field programmable gate arrays (FPGA)  Optical systems  Precision engineering  Transfer matrix method   High Precision Automatic Assembly Based on Microscopic Vision and Force Information 期刊论文  OAI收割 IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, 2016, 卷号: 13, 期号: 1, 页码: 382-393 作者:  Liu, Song   |  收藏  |  浏览/下载：23/0  |  提交时间：2016/10/20 Calibration  Feature Extraction  Force Control  Image Jacobian Matrix  Microscope  Precision Assembly  Visual Control   Theoretical analysis on optical parallelism of pentaprism 期刊论文  OAI收割 ACTA PHOTONICA SINICA, 2015, 卷号: 44, 期号: 5, 页码: 523006 作者:  Wang QS(王秋实);  Li M(李明);  Liao KL(廖可梁);  Yang FG(杨福桂);  Sheng WF(盛伟繁) 收藏  |  浏览/下载：69/0  |  提交时间：2016/04/18 Analytical expressions  Coordinates transformation  High-precision optical surfaces  Laser interferometer  Matrix optics  Pentaprism  System calibration  Tolerance analysis   LOTMAP: learning to optimize top-N recommendation with mean average precision 期刊论文  OAI收割 Innovative Computing, Information and Control Express Lettersv, 2014, 卷号: 8, 期号: 12, 页码: 3299-3306 作者:  Yang Yehui;  Zhang Wensheng;  Xie Yuan;  Zhu Limin;  Tan Yuanhua   |  收藏  |  浏览/下载：33/0  |  提交时间：2016/06/20 Top-n Recommendation  Collaborative Filtering  Optimize  Matrix Factorization  Mean Average Precision   Optical axis stabilization of semi-strapdown seeker based on disturbance observer (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China Sun G.; Zhu M.; Yin S.; Jia H. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 Based on the kinematics of semi-strapdown seeker  the framework coordinate of the seeker is established. The optical axis stability equation of semi-strapdown seeker is deduced by using attitude transformation matrix. Then  the stability control principle block diagram of semi-strapdown seeker is shown based on the stability equation. The main factors that influence the stabilization precision are pointed out  such as friction disturbance  velocity-measuring noise and missile disturbance. In order to improve the stabilization precision  disturbance observer was proposed in semi-strapdown seeker stability control. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation  and optical axis stabilization precision is improved nearly 20 times and 5 times due to two different frequencies with same amplitude. 2011 IEEE.   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：21/0  |  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   Based on Householder transform of the Zernike polynomial wave front fitting method to solve active optics correction force (EI CONFERENCE) 会议论文  OAI收割 Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China 作者:  Wu X.-X. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 Corrective force solving is a critical technology of the active optics. A method to solve active optics corrective force is introduced  which is based on Householder transform of Zernike polynomial wave front fitting  this method is different from the traditional least square method and Gram-Schmid orthogonal method  because it does not bring ill-conditioned polynomial without constructing normal equation  so it can avoid calculation error  wave front fitting is precision. Based on the coefficient of the Zernike polynomial and the response function of the each actuator  the stiffness matrix of the primary mirror is built  and then adopting the damp least square method to calculate corrective force. Based on this method  cp400m test mirror is simulated many times  the calculation result approve: if the Householder transform is adopted  wave front fitting is precision  the result is stabilization and corrective effectiveness is better.