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:1672-7207(2013)03-1269-06 Entropy estimation of contaminated normal distribution ZHOU Fangbin1, 2, ZHU Jianjun1, CHEN Yongqi1, 3, WANG Zhengwu2 (1. School of Geosciences and Info-Physics, Central South... proportional. Two kinds of general models PDF can not be used to estimate contaminated normal distribution entropy and entropy coefficient. An approximate formula is suggested for entropy estimation......
pressure pv, average amplitude of differential pressure Av, peak frequency fp, peak frequency amplitude Afp and time-frequency entropy S were extracted. The results show that the characteristics... the fitting value and the experimental value are 0.36%-1.68% and 1.05%-5.02%, respectively. Key words: hydraulic lifting; vertical pipe; spherical particles; pressure fluctuation; time-frequency entropy 在垂直管水......
,最大的磁熵变随着Co含量的增加而减少,由x=0.1的13.8 J降为x=0.9 J·kg~(-1)·K~(-1)的1.5 J·kg~(-1).K~(-1).并且随着Co含量的增加存在由一级相变转为二级相变的趋势. 关键词:合金; 磁热效应; 磁熵变; 居里温度; auoy; magnetocaloric effect; magnetic entropy change; Curie......
级磁相变.在磁场变化0-1.5 T下,根据等温磁化曲线通过Maxwell关系式计算得出最大磁熵变-△S_m~(max)=9 J·ks~(-1)·K~(-1).Ge替代Si后该合金在其居里温度T_c处-△S_m-T曲线半高宽增大,使合金的相对制冷能力RCP(S)有所提高. 关键词:磁热效应; 磁熵变; 居里温度T_c; magnetocaloric effect; magnetic entropy......
的最大等温磁熵变-△S_m,均在0.7-1.3 J·kg~(-1)·K~(-1)之间. 关键词:合金; 磁制冷; 磁热效应; 磁熵变; alloy; magnetic refrigeration; magnetocaloric effect; nmgnetic entropy change; [全文内容正在添加中] ......
in magnetic refrigeration in room temperature. Key words: chemical synthesis; nanostructure materials; magnetocaloric effect; magnetic entropy change; perovskite manganite CLC number: O469  ... the largest spin among the rare-earth elements so that additional large magnetic entropy contribution from Gd3+ could be expected. 2 EXPERIMENTAL Firstly, La2(CO3)3·3H2O, Gd2(CO3)3·3H2O, SrCO3......
J. Cent. South Univ. (2018) 25: 1690-1700 DOI: https://doi.org/10.1007/s11771-018-3860-2 Application of time–frequency entropy from wake oscillation to gas–liquid flow pattern identification HUANG... in bubble, bubble/plug transitional, plug, slug, and annular flows. Utilizing the adaptive ensemble empirical mode decomposition method and the Hilbert transform, the time–frequency entropy S......
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of ore dump are key to controlling disaster of spontaneous combustion of sulfide ores. Key words: sulfide ores; spontaneous combustion; disaster; brittleness risk source; entropy 矿石自燃是硫化矿床开采中经常遇到的重大灾害之一...控制学报, 2005, 9(2): 111-115.RONG Pan-xiang, JIN Hong-zhang, WEI Qi, et al. Research on the characteristic complex system based on brittle link entropy[J]. Electric Machines and Control, 2005, 9(2......
30% of classical method and its accuracy is comparative. Key words: response surface method; Rosenbluth method; statistic moment; entropy density function; quadratic polynomial 1... Entropy density function After the first, second, third and forth order origin point moments of functional function are confirmed, the corresponding centre point moment can......