中国科学院机构知识库网格系统: 检索

Modeling Three-Dimensional Anisotropic Structures of Reservoir Lithofacies Using Two-Dimensional Digital Outcrops 期刊论文 OAI收割
ENERGIES, 2020, 卷号: 13, 期号: 16, 页码: 19
作者: Yan, Yiming; Zhang, Liqiang; Luo, Xiaorong

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收藏 | 浏览/下载：28/0 | 提交时间：2020/12/07

multiple-point geostatistics training image parametric sensitivity analysis simulation sequence reservoir lithofacies anisotropic structures model Qingshuihe formation Junggar Basin

Analysis of the Effect of Tungsten Inert Gas Welding Sequences on Residual Stress and Distortion of CFETR Vacuum Vessel Using Finite Element Simulations 期刊论文 OAI收割
METALS, 2018, 卷号: 8, 期号: 11, 页码: 18
作者: Zhang, Jingwen; Yu, Liming; Liu, Yongchang; Ma, Zongqing; Li, Huijun

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收藏 | 浏览/下载：44/0 | 提交时间：2019/12/25

welding sequence welding stress welding distortion finite element simulation CFETR

Mesoscale modeling of sulfonated polyimides copolymer membranes: Effect of sequence distributions 期刊论文 OAI收割
JOURNAL OF MEMBRANE SCIENCE, 2018, 卷号: 564, 页码: 146-158
作者: Hu, Chenchen; Lu, Teng; Guo, Hongxia

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收藏 | 浏览/下载：113/0 | 提交时间：2019/04/09

Proton Exchange Membrane Sulfonated Polyimide Sequence Distribution Dissipative Particle Dynamics Simulation Structure And Property

激光驱动器光机装配规划与仿真验证研究 学位论文 OAI收割
工程硕士, 中国科学院自动化研究所: 中国科学院大学, 2014
汤志鹏

收藏 | 浏览/下载：50/0 | 提交时间：2015/09/02

激光驱动器光机组件装配序列规划仿真验证 laser driver optical module assembly sequence planning simulation

Identifying Coevolution Between Amino Acid Residues in Protein Families: Advances in the Improvement and Evaluation of Correlated Mutation Algorithms 期刊论文 OAI收割
CURRENT BIOINFORMATICS, 2013, 卷号: 8, 期号: 2, 页码: 148-160
作者: Xu, Haisong; Li, Xiaoqin; Zhang, Ziding; Song, Jiangning

收藏 | 浏览/下载：28/0 | 提交时间：2016/06/22

Coevolution analysis correlated mutation algorithms molecular dynamics simulation multiple sequence alignment phylogenetic bias phylogenetic correlation residue coevolution

Monte Carlo Simulation of Effect of Block Sequence on Kinetics of Vesicle Formation of Polymers 期刊论文 OAI收割
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2013, 卷号: 34, 期号: 3, 页码: 621-627
作者: Fan Juan-Juan; Han Yuan-Yuan; Jiang Wei

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收藏 | 浏览/下载：17/0 | 提交时间：2019/04/09

Monte Carlo Simulation Block Sequence Vesicle Amphiphilic Block Copolymer

Timing generator of scientific grade CCD camera and its implementation based on FPGA technology (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者: Li Y.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

The Timing Generator's functions of Scientific Grade CCD Camera is briefly presented: it generates various kinds of impulse sequence for the TDI-CCD video processor and imaging data output acting as the synchronous coordinator for time in the CCD imaging unit. The IL-E2TDI-CCD sensor produced by DALSA Co.Ltd. use in the Scientific Grade CCD Camera. Driving schedules of IL-E2 TDI-CCD sensor has been examined in detail the timing generator has been designed for Scientific Grade CCD Camera. FPGA is chosen as the hardware design platform schedule generator is described with VHDL. The designed generator has been successfully fulfilled function simulation with EDA software and fitted into XC2VP20-FF1152 (a kind of FPGA products made by XILINX). The experiments indicate that the new method improves the integrated level of the system. The Scientific Grade CCD camera system's high reliability stability and low power supply are achieved. At the same time the period of design and experiment is sharply shorted. 2010 Copyright SPIE - The International Society for Optical Engineering.

Method of improving the accuracy of image motion measurement for panoramic aerial cameras (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者: Jia P.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

To improve the accuracy of image motion measurement for panoramic aerial cameras the paper proposed a method of real-time image motion measurement based on 2D spatial correlation. An auxiliary area CCD is positioned paralleled to the main linear TDI CCD in the focal plane of the camera. For every frame of the image sequence taken by the auxiliary CCD a prediction on the displacement of the current image in the flight direction is made based on the forward image motion velocity. The current and the reference images are combined together for 2D-correlation which products an image motion vector. By decomposing the vector both the forward and pendulum-swing image motions can be determined. The demanding computational requirements for the real-time 2D-correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 Copyright SPIE - The International Society for Optical Engineering.

Design of CAN bus application layer protocol for aerocraft control system (EI CONFERENCE) 会议论文 OAI收割
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
作者: Zhang Y.; Zhang H.; Zhang H.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

A special Controller Area Network (CAN) bus application layer protocol is designed for the highly reliable communication of microcomputer-based systems in aerocraft control system by analyzing the practical time sequence of data transmission data priority data type and data function etc in this paper. Identifier distribution data storage form data type data exchange method and fault handling mechanism of the application layer protocol are specified in detail in the background of a real aerocraft control system. At last a simulation platform based on CAN bus for aerocraft control system is built to validate the design. Experimental results show that this application layer protocol meets the requirements of data transmission reliability real-time and high efficiency. The bus load rate is low and there is great room for expansion. 2010 IEEE.

Estimation algorithm of mobile OFDM CFOs based on step-size (EI CONFERENCE) 会议论文 OAI收割
2009 International Conference on Information Engineering and Computer Science, ICIECS 2009, December 19, 2009 - December 20, 2009, Wuhan, China
Lin L.; Qiao Y.-F.; Su W.-X.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

In order to maintain orthogonality among subcarriers for mobile OFDM a CFOs step-size estimation model is established to avoid severe performance degradation caused by ICI and algorithmic stability step-size parameter the error of CFOs estimate and etc are investigated. First after an averaging window algorithm is introduced the mathematic model of step-size estimation algorithm is obtained through step-size parameter and time-varying CFOs. Then based on the results of MATLAB simulation the determination of step-size parameter the advantages of step-size algorithm and precision are discussed. Finally time sequence plots of added CP interleaver and subcarrier modulation with VHDL are presented. Experimental results indicate that the maximum of CFOs errors is 0.00987 in 3 variance interval when mobile velocity is 400 km/h according with verdicted principle that in order for the ICI effects to be negligible the error of CFOs estimation must be accurate within 1-2% of the subcarrier spacing and programs can correctly implement on circuit board. 2009 IEEE.