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Enhanced flexural performance of epoxy polymer concrete with short natural fibers被引量：3
《Science China(Technological Sciences)》2018年第8期1107-1113,共7页HU Bin ZHANG NanLi LIAO YuTian PAN ZhiWei LIU YiPing ZHOU LiCheng LIU ZeJia JIANG ZhenYu 
supported by the National Natural Science Foundation of China (Grant Nos. 11772131 & 11772132);the Natural Science Foundation of Guangdong Province, China (Grant Nos. 2015A030311046 & 2015B010131009);the Opening Fund of State Key Laboratory of Nonlinear Mechanics (LNM), CAS;South China University of Technology (Grant No. 2017ZD096)
Epoxy polymer concrete(EPC) has found various applications in civil engineering. To enhance the flexural performance of EPC,two kinds of short natural fibers with high specific strength(sisal fibers and ramie fibers) ...
关键词：epoxy polymer concrete （EPC） natural fibers fiexural strength micromechanics models 
Short-working-distance optical imaging system and method for surface detection of underwater structures被引量：5
《Science China(Technological Sciences)》2018年第5期774-781,共8页LIU Cong WANG ChengFei XU YingJun LI Xu LUO ChunHao DAI MeiLing SHAO XinXing HE XiaoYuan 
supported by the National Key Technology R&D Program(Grant No.2014BAK11B04);the National Natural Science Foundation of China(Grant Nos.11272089,11327201,11532005&11602056)
In the surface imaging of underwater structures, long working distance will reduce image quality due to the turbidity of water. To acquire high definition and large field of view(FOV) images for surface detection, a s...
关键词：surface detection camera array image stitching calibration 
Study on heat transfer enhancement of discontinuous short wave finned flat tube被引量：4
《Science China(Technological Sciences)》2011年第12期3281-3288,共8页FENG LiLi DU XlaoZe YANG YongPing YANG LiJun 
supported by the National Basic Research Program of China ("973" Program) (Grant No.2009CB219804)
The typical configuration adopted by air-cooled condenser(ACC) in coal-fired power generating unit is the wave finned flat tube. The development of boundary layer between wave fins along long axis of flat tube can sup...
关键词：fiat tube discontinuous short fin heat transfer enhancement direct air-cooled condenser 
Characteristics of annular impinging jets with/without swirling flow by short guide vanes被引量：7
《Science China(Technological Sciences)》2011年第3期749-757,共9页YANG HuiQun KIM TongBeum LU TianJian 
supported by the National Basic Research Program of China ("973" Project) (Grant No. 2011CB610305);the National "111" Project of China (Grant No. B06024);the National Natural Science Foundation of China (Grant Nos. 10825210, 11072188)
Annular jets impinging on a uniformly heated flat plate with or without swirling flow by short guide vanes are experimentally characterized. With the Reynolds number fixed at a relatively low value, the variation of j...
关键词：annular impinging jet flow structure swirling flow guide vanes wall heat transfer wall pressure 
The Young's moduli prediction of random distributed short-fiber-reinforced polypropylene foams using finite element method被引量：3
《Science China(Technological Sciences)》2009年第1期72-78,共7页WANG Bo1, WANG RongXiu2 & WU Yong1 1 School of Mathematic Science, Chongqing Institute of Technology, Chongqing 400050, China 2 Department of Computer Science and Information Engineering, Chongqing Technology and Business University, Chongqing 400067, China 
Supported by the National Natural Science Foundation of China (Grant No. 50573095)
The elastic moduli of short-fiber-reinforced foams depend critically on the fiber content and fiber length, as well as on the fiber orientation distribution. Based on periodic tetrakaidecahedrons, the finite element m...
关键词：short-fiber reinforcement Young’s MODULUS finite element Gaussian distribution 
New method to extract radial acceleration of target from short-duration signal at low SNR被引量：2
《Science China(Technological Sciences)》2008年第5期556-575,共20页DU WenChao WANG GuoHong GAO XueQiang 
the National Natural Science Foundation of China (Grant No. 60541001)
In order to extract target radial acceleration from radar echo signal at low SNR (signal-to-noise), this paper employed FRFT (fractional Fourier transformation) to analyze short-duration radar echo and studied the rel...
关键词：estimation FRFT RADICAL ACCELERATION radar 
Modeling and mesoscopic damage constitutive relation of brittle short-fiber-reinforced composites被引量：1
《Science China(Technological Sciences)》1999年第5期530-540,共11页刘洪秋 梁乃刚 夏蒙棼 
Project supported by the National Natural Science Foundation of China (Grant Nos. t9872065 and 19732060) and the Chinese Academy of Sciences.
Aimed at brittle composites reinforced by randomly distributed short-fibers with a relatively large aspect ratio, stiffness modulus and strength, a mesoscopic material model was proposed. Based on the statistical desc...
关键词：short-fiber reinforced composites MESOSCOPIC material model DAMAGE CONSTITUTIVE theory dam-age-induced anisotropy damage-rate effect. 
A new quantitative method in analysing the experiments on short term serial memory
《Science China(Technological Sciences)》1998年第5期460-464,共5页唐孝威 陈湘川 张达人 
ProjectsupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .395 70 2 5 5)andtheNationalClimbingProjectBofChina
A new quantitative method is introduced into the analysis of the experiments on short term serial memory (STSM). In this method, three parameters are defined to quantitatively represent the performance of memory for i...
关键词：SHORT TERM SERIAL MEMORY ITEM and time order information method of QUANTITATIVE analysis. 
Extra-short He-Ne lasers based on mode split被引量：1
《Science China(Technological Sciences)》1996年第2期191-195,共5页韩艳梅 张书练 李克兰 
Project supported by the Natural Science Foundation of Beijing.
An extra-short He-Ne laser (shorter than 100mm) does not work well because there is likely no longitudinal mode in the lasing bandwidth sometimes and the output power rises and falls deeply from time to time.A method ...
关键词：laser longitudinal mode SPLIT technology QUARTZ CRYSTAL extra-short HE-NE laser. 
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