中国科学院机构知识库网格系统: 检索

Parallelization strategies for resolved simulations of fluid-structure-particle interactions 期刊论文 OAI收割
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION, 2024, 卷号: 45, 期号: 5, 页码: 857-872
作者: Qin JH(秦建华); Liao F(廖飞); Dong GD(董国丹); Yang XL(杨晓雷)

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收藏 | 浏览/下载：15/0 | 提交时间：2024/05/27

particle-resolved direct numerical simulation particle-laden flow complex geometry resolved fluid-structure-particle interaction (RFSPI) immersed boundary (IB) method O357

Hybrid Diffuse and Sharp Interface Immersed Boundary Methods for Particulate Flows in the Presence of Complex Boundaries 期刊论文 OAI收割
COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 2022, 卷号: 31, 期号: 4, 页码: 1242-1271
作者: Qin, Jianhua; Yang, Xiaolei; Li, Zhaobin; Yang XL(杨晓雷)

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收藏 | 浏览/下载：57/0 | 提交时间：2022/05/17

Immersed boundary method particle-laden flow complex geometry

On the evaluation of Poisson equation with dual interpolation boundary face method 期刊论文 OAI收割
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, 2021, 卷号: 88, 页码: 9
作者: Khan, Suliman; He, Rui; Khan, Feroz; Khan, M. Riaz; Arshad, Muhammad

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收藏 | 浏览/下载：29/0 | 提交时间：2022/04/02

Dual reciprocity method Dual interpolation boundary face method Augmented thin plate spline Moving least squares interpolation Poisson equation Complex geometry

Particle-resolved simulation of randomly packed pebble beds with a novel fluid-solid coupling method 期刊论文 OAI收割
FUSION ENGINEERING AND DESIGN, 2020, 卷号: 161, 页码: 10
作者: Wongkham, Juthamas; Wen, Tao; Lu, Bona; Cui, Lijie; Xu, Junbo

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收藏 | 浏览/下载：24/0 | 提交时间：2021/03/29

Pebble bed Mesh Adaption Immersed boundary method CFD Particle-resolve simulation Complex geometry

COMPLEX HYPERBOLIC (3, 3, n) TRIANGLE GROUPS 期刊论文 OAI收割
PACIFIC JOURNAL OF MATHEMATICS, 2016, 卷号: 280, 期号: 2, 页码: 433-453
作者: Parker, John R.; Wang, Jieyan; Xie, Baohua

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收藏 | 浏览/下载：13/0 | 提交时间：2018/07/30

complex hyperbolic geometry complex hyperbolic triangle groups

MEASUREMENTS AND CONTROL OF THE MICROSTRUCTURE OF ETHYLENE-PROPYLENE COPOLYMERS 期刊论文 OAI收割
acta polymerica sinica, 2013, 期号: 12, 页码: 1492-1500
Mu JS; Li YS

收藏 | 浏览/下载：29/0 | 提交时间：2014/04/14

CONSTRAINED GEOMETRY CATALYST STRUCTURAL-CHARACTERIZATION MOLECULAR-STRUCTURE POLYMERIZATION PROPENE COMPLEX

Discrete element simulation of particle flow in arbitrarily complex geometries 期刊论文 OAI收割
CHEMICAL ENGINEERING SCIENCE, 2011, 卷号: 66, 期号: 23, 页码: 6069-6088
作者: Su, JW (Su, Junwei)[1,4]; Gu, ZL (Gu, Zhaolin)[2,3]; Xu, XY (Xu, Xiaoyun)[4]

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收藏 | 浏览/下载：26/0 | 提交时间：2019/01/07

Discrete element method Unstructured mesh Particle flow OpenFOAM Fluidized bed Complex geometry

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：108/0 | 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).

Generation of 2D conforming voronoi diagram in complex domain 会议论文 OAI收割
2011 International Conference on Applied Informatics and Communication, ICAIC 2011, Xi An, AUG 20-21, 2011
作者: Li Q; Li HS; Cai Q; Liu YW(刘曰武)

收藏 | 浏览/下载：24/0 | 提交时间：2013/02/26

Algorithms Computational geometry Information science Two dimensional Complex domains conforming Delaunay triangulation Generation algorithm Sufficient conditions Voronoi cell Voronoi diagram Voronoi diagrams

Synthesis and characterization of two linear Fe-M-S clusters coordinated by bis(pyrid-2-ylmethyl)amine(BPA): (BPA)(DMF)FeS2MS2 (M = Mo, W) 期刊论文 OAI收割
Zeitschrift Fur Anorganische Und Allgemeine Chemie, 2008, 卷号: 634, 期号: 6-7, 页码: 1225-1229
C. X. Zhang; C. B. Ma; Y. Zhang; M. Q. Hu; C. N. Chen and Q. T. Liu

收藏 | 浏览/下载：28/0 | 提交时间：2013/01/22

iron molybdenum sulfur nitrogenase bis(pyrid-2-ylmethyl)amine crystall structures charge declocalization intermolecular interactions double-cubane cluster trigonal bipyramidal geometry iron-molybdenum cofactor crystal-structure structural-characterization dichloroferrous complex ligands nitrogenase chemistry hydrogen