نتایج جستجو برای: advanced composite

تعداد نتایج: 369491  

2015
Philip Harrison

Keywords: A. Fabrics/textiles B. Mechanical properties C. Finite element analysis (FEA) D. Mechanical testing a b s t r a c t A method of combining 1-d and 2-d structural finite elements to capture the fundamental mechanical properties of engineering fabrics subject to finite strains is introduced. A mutually constrained pantographic beam & membrane mesh is presented and simple homogenisation t...

Journal: :Advanced functional materials 2010
Sheng Liu Yang Liu Hülya Cebeci Roberto Guzmán de Villoria Jun-Hong Lin Brian L Wardle Q M Zhang

Recent advances in fabricating controlled-morphology vertically aligned carbon nanotubes (VA-CNTs) with ultrahigh volume fraction create unique opportunities for markedly improving the electromechanical performance of ionic polymer conductor network composite (IPCNC) actuators. Continuous paths through inter-VA-CNT channels allow fast ion transport, and high electrical conduction of the aligned...

2011
Wooseok Ji Anthony M. Waas Wei Heok Ng Peter A. Gustafson Evan J. Pineda Ravi S. T. Raveendra

This paper is concerned with a progressive failure analysis methodology for fiber reinforced composite laminates combining various analytical models designed for investigating failure mechanisms at different length scales. The methodology here employs a fundamental mechanism based approach to predict failure or damage initiation with strong coupling between the multiple length scales. The discr...

2013
S.Sankar Ganesh Jenifer Nesam

A new implementation scheme of AES (Advanced Encryption Standard) is proposed in this paper. The LUT based design of S-box consumes almost 75% of power. Instead of using LUT based S-box, composite field S-box design is used. That can reduce the amount of power consumption. The values of s-box are known to everyone. By masking the each value in the s-box by another masking function increase the ...

2005
X. L. Chen Y. J. Liu

Some recent developments in the modeling of composite materials using the boundary element method (BEM) are presented in this paper. The boundary integral equation for 3D multi-domain elasticity problems is reviewed. Difficulties in dealing with nearly-singular integrals, which arise in the BEM modeling of composite materials with closely packed fillers or of thin films, are discussed. New and ...

2001
Remko Akkerman

Background The breakthrough of advanced composite materials in various applications has occurred to a smaller extent than might have been expected previously, mainly due to the high integral costs of composite products: a high cost of manufacturing added to the already expensive raw material. There is a clear need for improved costeffectiveness. The key issues are considered to be: cheaper prod...

2014
Zhao Wang Xiao Zhang Sitao Wang Zhisong Hao Zhiming Zheng

The hardware implementation of the Substitution-Box (S-box) of the Advanced Encryption Standard (AES) always employs composite field GF ((2)) to obtain better efficiency. In this paper, an improved class of S-boxes by direct inversion in composite field is presented, and the choice of the subfield leading to the most efficient implementation is discussed. Eliminating the field isomorphic transf...

Journal: :Clinical and investigative medicine. Medecine clinique et experimentale 2015
Wei-Chin Hung Teng-Hung Yu Chia-Chang Hsu Li-Fen Lu Fu-Mei Chung I-Ting Tsai Yung-Chuan Lu Jer-Yiing Houng Yau-Jiunn Lee Chao-Ping Wang

PURPOSE Circulating levels of visfatin, a ubiquitous adipokine, may reflect both the severity of plaque as well as degree of plaque stabilization in acute myocardial injury. The purpose of this study was to test whether the level of visfatin is associated with the occurrence of major adverse cardiovascular events (MACEs) in patients with acute ST-elevation myocardial infarction (STEMI). METHO...

Journal: :journal of tethys 0

the kalut-e-ashrafa area is located in the north-east of ardakan area in central iran, yazd province. this area promises copper mineralization. the most of the minerals in this study area are silica-rich veins and veinlets. therefore, in order to identify geological formations with silica zones and to determine potential mineralization areas, aster images and remote sensing methods were used. a...

2017
Mohit Sharma M. Sharma

Abstract Carbon fibre/fabric (CF) is a privileged reinforcement for advanced polymer composites in tribological applications where performance is primary criteria rather than the cost due to the combination of distinct properties such as high specific strength, thermo-oxidative resistance, thermal and electrical conductivity along with self-lubricity etc. However problems associated with its ch...

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