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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... 30% of classical method and its accuracy is comparative. Key words: response surface method; Rosenbluth method; statistic moment; entropy density function; quadratic polynomial 1......
13 July 2014 Abstract: Electronic structures of complex mineral jamesonite were studied using density functional theory method together with their flotation behavior. The flotation behavior... and stibnite are easily depressed by lime. Key words: jamesonite; electronic structure; flotation behavior; density functional theory 1 Introduction Jamesonite (Pb4FeSb6S14) is a sulfosalt mineral......
measurements, FTIR determination and density functional theory (DFT) calculation. The flotation results demonstrated that HEPA exhibited superior collecting performance compared with styrene phosphonic... measurement. Key words: (1-hydroxy-2-methyl-2-octenyl) phosphonic acid; cassiterite; adsorption; flotation; density functional theory 1 Introduction The first recorded cassiterite flotation was at Altenberg......
; granular material; contact force; probability density function......
of the objects per unit volume. As illustrated in Figure 1, a pixel’s local density is defined as the number of pixels which surround it within a certain radius (d). The function of the local density model... divergence can be employed as the distance function. Figure 1 Illustration of local density model definition The selection of radius is the most important step in computing the local density......
interpolation function was used to describe a rock joint surface. 2.1 Fractal interpolation theory and method For a data set of N points shaped like ...J. Cent. South Univ. (2017) 24: 1619-1626 DOI: 10.1007/s11771-017-3567-9 Investigation on jointed rock strength based on fractal theory YANG Lan-lan(杨兰兰)1, 2, XU Wei-ya(徐卫亚)1, 2, MENG Qing-xiang(孟庆......
Abstract: The electronic structure and optical properties of novel Na-hP4 high pressure phase at different pressures (260, 320, 400 and 600 GPa) were investigated by the density functional theory (DFT...) and the partial density of states (PDOS) were presented. The band gap increases and the energy band expands to some extent with the pressure increasing. The dielectric function, reflectivity, energy-loss......
come from both grinding environments and lattice substitutions in spodumene. Density functional theory (DFT) calculation revealed that Fe and Ca could exist as lattice substitutions on the spodumene... substitution; metal ion impurities; density functional theory (DFT) calculation; spodumene; cleavage; flotation 1 Introduction Lithium and several of its compounds, as critical and strategic materials, have been......
Effect of N-substituents on performance of thiourea collectors by density functional theory calculations LIU Guang-yi(刘广义), ZHONG Hong(钟 宏), XIA Liu-yin(夏柳荫), WANG Shuai(王 帅... of TU collectors has not been done in the previous studies. Density functional theory (DFT), offered an effective tool in the calculation of some properties and energies of the various collectors[13-16......
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