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Function of grinding fly ash in production of aluminum foam WANG Yong(王 永), YAO Guang-chun(姚广春), LI Bing(李 兵) School of Materials and Metallurgy, Northeastern University, Shenyang... the onset of rupture. Finally, the aluminum foam with uniform cell structure can be obtained. The density is about 0.4 g/cm3, porosity is in the range of 85%-90% and the aperture is 4-7 mm. Key words......
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); Nakagami-m fading channel; probability density function (PDF); symbol error rate (SER); M-ary quadrature amplitude modulation (M-QAM)... the statistical model of the channel accurately. The average symbol error probability (ASER) was analyzed for different modulation schemes. A unified analytical framework was presented to obtain closed-form......
J. Cent. South Univ. Technol. (2011) 18: 223-229 DOI: 10.1007/s11771-011-0683-9 Coupling effects of influence factors on probability of corrosion initiation time of reinforced concrete ZHANG... humidity, load-induced crack and stress state affecting the chloride diffusion process in concrete is discussed. The probability distributions of the critical chloride concentration CC, the chloride......
the N-dimensional hypercube point set method, which formed the sample of random excitation modulated by the slowly varying function. The random dynamic equation for probability density evolution...; 文章编号:1672-7207(2015)04-1420-08 Probability density evolution analysis of track-bridge vertical coupled vibration with irregularity random excitation YU Zhiwu, MAO Jianfeng, TAN Sui......
and Geo-informatics, Hong Kong Polytechnic University, Hong Kong 999077, China) Abstract: The probability density function (PDF) feature of contaminated normal distribution was investigated. The Kullback... of contaminated normal distribution. Key words: contaminated distribution; contaminated normal distribution; probability density function; difference; entropy; entropy coefficient 对污染分布进行研究是抗差估计的基础[1],在近......
INVESTIGATION ON THE DENSITY UNIFORMITY OF PRESSED PARTS BY LOW-VOLTAGE ELECTROMAGNETIC COMPACTION Z.H.Meng1,Y.C.Li1,S.Y.Huang2,B.Zhang1,W.Ouyang1 (1.Wuhan University of Technology, Wuhan 430070, China;2.Harbin Institute of Technology, Harbin 150001, China) Abstract:Powder metallurgy is an efficient approach to fabricate varieties of high performance structure materials, function materials......
estimates combining observed data and a priori information. And the resulting probabilistic parameter estimates are called the Posterior Probability Distribution Function (PPDF). Following ULRYCH et al [20] and DOWNTON [14], the Bayesian theory estimates the PPDF via the likelihood function and a priori probability function p(r), which can be expressed as  ......
; Kriging model; active learning function; failure probability Cite this article as: LI Tian-zheng, DIAS Daniel. Tunnel face reliability analysis using active learning Kriging model―Case of a two-layer soils... tunnel face probability. Figure 3 Contours of failure block ahead of tunnel face: Figure 4 Evaluation of normalized pf Figure 5 Number of calls to performance function 4.3 Influence of correlation......
the first, second, third and fourth order moments of basic random variable. A probability density the function(PDF) of functional function was deduced through its first, second, third and fourth... function value is gained through finite element simulation test; an improved Rosenbluth method is adopted to calculate the statistic moment of the functional function[8]. Probability density function......