机构

• 长春光学精密机械与物... [4]
• 地理科学与资源研究所 [2]
• 数学与系统科学研究院 [1]
• 寒区旱区环境与工程研... [1]
• 光电技术研究所 [1]
• 昆明植物研究所 [1]
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采集方式

• OAI收割 [9]
• iSwitch采集 [1]

内容类型

• 期刊论文 [5]
• 会议论文 [4]
• SCI/SSCI论文 [1]

发表日期

• 2019 [1]
• 2012 [1]
• 2010 [3]
• 2009 [1]
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学科主题

• Geography [1]
• Physical [1]

筛选

浏览/检索结果: 共10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提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A theoretic study of a distance-based regression model 期刊论文  OAI收割 SCIENCE CHINA-MATHEMATICS, 2019, 卷号: 62, 期号: 5, 页码: 979-998 作者:  Li, Jialu;  Zhang, Wei;  Zhang, Sanguo;  Li, Qizhai   |  收藏  |  浏览/下载：59/0  |  提交时间：2020/01/10 distance-based regression  Euclidean  pseudo F test statistic  Mahalanobis   Research of software re-injection technology for aerospace camera controller in-orbit (EI CONFERENCE) 会议论文  OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China Xu W. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 For the factors of increased of tasks  enhancements of functions and improvement of integrity and complexity in aerospace camera  application system has raised high and long-term in-orbit autonomy and reliability requirements on camera controller. Based on an actual project application background  this paper has put forward a design method of new high reliability aerospace camera controller in-orbit software reinjection instruction sequence which use TSC695F as kernel CPU and process flow of bootstrap receive  cache  checkout and storage update data. Finally  combined with specific test module for camera controller software re-injection  the validity of the software re-injection method raised here has been verified. Still here gives out reference codes of update data package which generated by the ground. 2012 IEEE.   Miniature field bus data recorder (EI CONFERENCE) 会议论文  OAI收割 2010 WASE International Conference on Information Engineering, ICIE 2010, August 14, 2010 - August 15, 2010, Beidaihe, Hebei, China Chen C.-Q.; Ji Y. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 The common bus on bus control is RS232. With the development of field bus technology  field bus technology is widely used in data recorder. How to real time record the data of field bus in the experiment and provide the test data for process reconstruction is a very important problem. This paper introduces a kind of data acquisition and storage based on field bus. Its core design is C8051F040 microprocessor and SJA1000  a widely used field bus controller. This paper presents the basic constitution of this field bus data recorder and set forth its hardware and software. This field bus data recorder field bus real-time gathers the information and storage data on the CF card. The result of the experiment shows the system is highly reliable for data acquisition and storage  which should have abroad application prospect for data record experiment. 2010 IEEE.   Spatial and temporal variability of daily precipitation in Haihe River basin, 1958-2007 SCI/SSCI论文  OAI收割 2010 作者:  Xia J. 收藏  |  浏览/下载：31/0  |  提交时间：2012/06/08 climate change  spatial and temporal variability of precipitation  Mann-Kendall method  Kolmogorov-Smirnov test  Z test  F test  Haihe  River basin  temperature  china   Spatial and temporal variability of daily precipitation in Haihe River basin, 1958-2007 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2010, 卷号: 20, 期号: 2, 页码: 248-260 作者:  Wang Zhonggen;  Xia Jun(夏军) 收藏  |  浏览/下载：341/85  |  提交时间：2011/06/10 climate change  spatial and temporal variability of precipitation  Mann-Kendall method  Kolmogorov-Smirnov test  Z test  F test  Haihe River basin   Design and tolerance analysis of compensator for high order aspheric surface testing (EI CONFERENCE) 会议论文  OAI收割 2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems, October 19, 2009 - October 22, 2009, Shanghai, China 作者:  Chen X.;  Liu W.;  Chen X.;  Chen X. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 High accuracy is required in surface testing of 90nm nodal point lithography projecting lens. By comparing various aspheric surface testing methods  the structure layout of the compensator is a meniscus positive lens combined with a Plano-convex positive lens. The design results indicate that: primary and high order aberrations are balanced well  we adopt Offner null compensator to test the aspheric surface in the point diffraction interferometer at last. In this paper  MTF exceeds diffraction limit  an Offner compensator is presented on the base of the third order aberration theory to test concave aspheric surface  root-mean-square (RMS) of wave front error /167. The F-number of the system can achieve F/1.64. By the analysis of the process of aspheric surface testing with the designed system  the optical construction parameters of which is determined by introducing equal-quantities spherical aberration to compensate all orders of aspheric coefficients. The field of view of the system is 0.02  a loosen distribution of the tolerance was presented based on the accuracy of measuring apparatus. 2009 SPIE.   Trends of the global radiation and sunshine hours in 1961-1998 and their relationships in China 期刊论文  iSwitch采集 ENERGY CONVERSION AND MANAGEMENT, 2006, 卷号: 47, 期号: 18-19, 页码: 2859-2866 作者:  Chen, Rensheng;  Kang, Ersi;  Ji, Xibin;  Yang, Jianping;  Zhang, Zhihui 收藏  |  浏览/下载：33/0  |  提交时间：2019/10/08 Angstrom model  F-test  precipitation  air temperature   Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE) 会议论文  OAI收割 Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China Zhang Z.; Sun J.; Wu K. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme  the sine output signal of the FOG was sampled and disposed  and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes  can meet the orientation need of artillery  terrain measurement vehicle  armored car  unmanned drive vehicle  geodetic survey and tunnel exploration.   Wavefront fitting of interferograms with Zernike polynomials 期刊论文  OAI收割 OPTICAL ENGINEERING, 2002, 卷号: 41, 期号: 7, 页码: 1565-1569 作者:  Qi, B;  Chen, HB;  Dong, NL 收藏  |  浏览/下载：26/0  |  提交时间：2015/09/21 wavefront fitting  Zernike polynomials  singular value decomposition  F-test   Correlation of Pairwise Genetic and Geographic Distance Measures: Inferring the RelativeInfluences of Gene Flow and Drift on the Distribution of Genetic Variability 期刊论文  OAI收割 Evolution, 1999, 卷号: 53, 期号: 6, 页码: 1898-1914 作者:  Delbert W. Hutchison;  Alan R. Templeton   |  收藏  |  浏览/下载：23/0  |  提交时间：2017/07/24 Correlations  Crotaphytus Collaris  F-statistics  Gene Flow  Genetic Distance  Mantel's Test  Population Structure  Random Genetic Drift