中国科学院机构知识库网格系统: 检索

Analytical study of the reflection and transmission coefficient of the submarine interface 期刊论文 OAI收割
ACTA GEOPHYSICA, 2018, 卷号: 66, 期号: 4, 页码: 449-460
作者: Zhang, Guangli; Hao, Chongtao; Yao, Chen

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收藏 | 浏览/下载：27/0 | 提交时间：2018/09/27

Submarine interface Reflection and transmission coefficient Stiff and soft seabed layer Critical angle Analytical study

Stretching temperature dependence of the critical strain in the tensile deformation of polyethylene copolymer 期刊论文 OAI收割
EUROPEAN POLYMER JOURNAL, 2017, 卷号: 97, 页码: 188-197
作者: Liao, Tao; Jiang, Zhiyong; Li, Rui; Gao, Yuxin; Men, Yongfeng

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收藏 | 浏览/下载：48/0 | 提交时间：2019/04/09

Polyethylene Copolymer Small Angle X-ray Scattering Critical Strain Amorphous Entanglement Density

Molecular Weight Dependency of Crystallization and Melting Behavior of beta-Nucleated Isotactic Polypropylene 期刊论文 OAI收割
journal of polymer science part b-polymer physics, 2014, 卷号: 52, 期号: 19, 页码: 1301-1308
Lu, Ying; Wang, Qiao; Men, Yongfeng

收藏 | 浏览/下载：37/0 | 提交时间：2015/10/19

Compounds of isotactic polypropylene (iPP) and beta-nucleating agent were used to investigate the relationship between the development of beta phase and molecular weight in iPP under quiescent crystallization conditions by using wide angle X-ray diffraction and differential scanning calorimetry techniques. In all cases the dependency of the formation of beta phase in iPP on molecular weight of iPP at a defined crystallization temperature range was found. The iPP with high molecular weight possessed a wide range of crystallization temperature in inducing rich beta phase. However poor or even no beta phase was obtained for the samples with low molecular weight in the same range. In addition an upper critical crystallization temperature of producing dominant beta phase was found at 125 degrees C. Beyond this temperature a phenomenon of prevailing alpha phase became obvious. (C) 2014 Wiley Periodicals Inc.

Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study 期刊论文 OAI收割
COLLOID AND POLYMER SCIENCE, 2013, 卷号: 291, 期号: 2, 页码: 307-315
作者: Wang FC(王奉超); Zhao YP(赵亚溥)

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/07

Contact angle hysteresis Critical shear stress Moving contact line Disjoining pressure Flexible substrate Molecular dynamics simulation

Structural Evolution of Ethylene-Octene Copolymers upon Stretching and Unloading 期刊论文 OAI收割
macromolecules, 2013, 卷号: 46, 期号: 3, 页码: 971-976
Sun YY; Fu LL; Wu ZH; Men YF

收藏 | 浏览/下载：30/0 | 提交时间：2014/04/16

HIGH-DENSITY POLYETHYLENE X-RAY-SCATTERING STIMULATED SHRINKAGE FORCES TENSILE DEFORMATION CRITICAL STRAINS SMALL-ANGLE ISOTACTIC POLY(1-BUTENE) SEMICRYSTALLINE POLYMERS ORIENTED POLYMERS MOLECULAR-WEIGHT

Crack propagation rule of compound type in surrounding rock of circular hydraulic tunnel in hydraulic fracturing process 期刊论文 OAI收割
DISASTER ADVANCES, 2013, 卷号: 6, 页码: 256-263
作者: Bian, Kang; Liu, Jian

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收藏 | 浏览/下载：15/0 | 提交时间：2018/06/05

circular hydraulic tunnel crack propagation crack initiation angle critical water pressure maximum circumferential stress criterion

The Goos-Hanchen shift of wide-angle seismic reflection wave 期刊论文 OAI收割
SCIENCE CHINA-EARTH SCIENCES, 2012, 卷号: 55, 期号: 5, 页码: 852-857
作者: Liu FuPing; Meng XianJun; Xiao JiaQi; Wang AnLing; Yang ChangChun

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收藏 | 浏览/下载：28/0 | 提交时间：2018/09/26

Goos-Hanchen effect lateral shift P- and SV-wave reflection wave of wide-angle Zoeppritz equations critical angle

Deformation-Induced Phase Separation in Blends of Poly(epsilon-caprolactone) with Poly(vinyl methyl ether) 期刊论文 OAI收割
macromolecules, 2011, 卷号: 44, 期号: 17, 页码: 7062-7065
Jiang ZY; Fu LL; Sun YY; Li XH; Men YF

收藏 | 浏览/下载：29/0 | 提交时间：2012/06/08

X-RAY-SCATTERING ETHYLENE-PROPYLENE COPOLYMER HIGH-DENSITY POLYETHYLENE SMALL-ANGLE SEMICRYSTALLINE POLYMERS STRUCTURAL EVOLUTION CRYSTALLINE POLYMERS LINEAR POLYETHYLENE TENSILE PROPERTIES CRITICAL STRAINS

Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE) 会议论文 OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：35/0 | 提交时间：2013/03/25

It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise for a seeker electro-driven with a concentric glass dome the large errors will decrease the picking pointing and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure manufacture installation and vibration coming from working environment. In this paper the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case the diameter is 120mm and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker and at the same time the errors resulting from installation were considered too. Based on calculating the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper and finally the maximum gimbal displacement error reduced to 0.1mm which is acceptable corresponding to the picking pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.

Theoretical representation of shear and pressure influence on the phase separation behavior of PVME/PS mixture 期刊论文 OAI收割
polymer, 2002, 卷号: 43, 期号: 14, 页码: 4047-4054
Sun ZY; Yang JA; Jiang W; An LJ; Jiang ZH; Wu ZW

收藏 | 浏览/下载：200/38 | 提交时间：2010/11/03

CRITICAL SOLUTION TEMPERATURE FLOWING POLYMER-SOLUTIONS ANGLE NEUTRON-SCATTERING CLOSED MISCIBILITY GAPS POLY(VINYL METHYL-ETHER) POLYVINYL METHYL-ETHER) CRITICAL FLUCTUATIONS BLENDS POLYSTYRENE DIAGRAMS