中国科学院机构知识库网格系统: 检索

Improving residue-residue contact prediction via low-rank and sparse decomposition of residue correlation matrix 期刊论文 OAI收割
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 2016, 卷号: 472, 期号: 1, 页码: 217-222
作者: Zhang, Haicang; Gao, Yujuan; Deng, Minghua; Wang, Chao; Zhu, Jianwei

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收藏 | 浏览/下载：39/0 | 提交时间：2019/12/13

Protein contacts prediction Correlation analysis Background correlation removal Low-rank and sparse matrix decomposition

Improving residue-residue contact prediction via low-rank and sparse decomposition of residue correlation matrix 期刊论文 OAI收割
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 2016, 卷号: 472, 期号: 1, 页码: 217-222
作者: Bu, DB; Zheng, WM; Zheng, WM (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.; Bu, DB (reprint author), Chinese Acad Sci, Inst Comp Technol, Key Lab Intelligent Informat Proc, Beijing, Peoples R China.; Zhang, HC

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收藏 | 浏览/下载：54/0 | 提交时间：2017/10/13

Protein Contacts Prediction Correlation Analysis Background Correlation Removal Low-rank And Sparse Matrix Decomposition

Stability-mutation feature identification of Web search keywords based on keyword concentration change ratio 期刊论文 OAI收割
chinese journal of library and information science, 2014, 卷号: 7, 期号: 3, 页码: 33-44
LU Hongtao; YE Guanghui; LI Gang

收藏 | 浏览/下载：55/0 | 提交时间：2015/01/29

Web search Web search keyword Information analysis and prediction Concentration change ratio Feature identification Influenza epidemic

A large-scale forest landscape model incorporating multi-scale processes and utilizing forest inventory data 期刊论文 OAI收割
ECOSPHERE, 2013, 期号: 9
作者: Wang, Wen J.; He, Hong S.; Spetich, Martin A.; Shifley, Stephen R.; Thompson, Frank R., III

收藏 | 浏览/下载：32/0 | 提交时间：2016/12/05

calibration Central Hardwood Forests region disturbance forest landscape models (FLMs) forest landscape processes (FLPs) LANDIS PRO landscape initialization oak forests prediction resource competition stand-scale processes US Forest Service Inventory and Analysis (FIA) data

Predictive vegetation mapping approach based on spectral data, DEM and generalized additive models SCI/SSCI论文 OAI收割
2013
作者: Huang C.

收藏 | 浏览/下载：116/0 | 提交时间：2014/12/24

vegetation mapping Generalized Additive Models (GAMs) SPOT Receiver Operating Characteristic (ROC) Generalized Regression Analysis and Spatial Predictions (GRASP) Huanghe River Delta yanhe river catchment spatial prediction plant-communities biodiversity regression oregon images level delta

Instability criterion of materials in combined stress states and its application to orthogonal cutting process 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF PLASTICITY, 2012, 卷号: 30-31, 页码: 18-40
作者: Ma W(马维); Li XW(李相旺); Dai LH(戴兰宏); Ling Z(凌中)

收藏 | 浏览/下载：18/0 | 提交时间：2013/01/18

Instability criterion Plastic collapse Cutting and forming Asymptotic analysis Thermomechanical processes Shear-Band Formation Chip Formation Strain Localization Simulation Temperatures Plasticity Prediction Rates Model Flow

Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.; Gu S.; An Y.; Jin G.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well its quality reduced about 20% the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.

Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Dong Y.-X.; Zhang H.-B.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：116/0 | 提交时间：2013/03/25

Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms such as adaptive background prediction detecting method. When background has dispersion-decreasing structure the traditional target detection algorithms would be more useful. But when the background has large gray gradient such as sea-sky-line sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature in our opinion from the perspective of mathematics the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore the purpose of the image preprocessing is to reduce the effects from noise also to raise the SNR of image and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics the median filter is used to eliminate noise improve signal-to-noise ratio then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

study on the correlation between randomness tests based on entropy 期刊论文 OAI收割
Ruan Jian Xue Bao/Journal of Software, 2009, 卷号: 20, 期号: 7, 页码: 1967-1976
Fan Li-Min; Feng Deng-Guo; Chen Hua

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收藏 | 浏览/下载：25/0 | 提交时间：2011/03/18

Cluster analysis Communication channels (information theory) Correlation methods Cryptography Discriminant analysis Entropy Signal filtering and prediction Testing

Multiscale analysis for interfacial fractures of ductile thin film/ceramic substrate systems 会议论文 OAI收割
11th International Conference on Fracture 2005, ICF11, Turin, Italy, March 20, 2005 - March 25, 2005
作者: Wei YG(魏悦广); Zhao HF; Shu SQ

收藏 | 浏览/下载：20/0 | 提交时间：2017/06/01

Cohesive zones Copper thin film Different scale Elastic-Plastic FE analysis Interfacial fracture Material parameter Multi scale analysis Prediction and analysis Size effects Substrate system Thin film delamination