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11.
期刊稿件网络采编系统的建立 总被引:3,自引:0,他引:3
《中国冶金》杂志社全面启用的科技期刊稿件采编系统是以Internet为载体,具有作者在线投稿、在线查询、上传校样、专家在线审理稿件、提交审稿意见、上传审改稿、编辑在线加工处理稿件等作用,完全实现了稿件从收稿到发稿的全程数字化管理,同时建立了数据齐全、操作简便的作者、审稿专家和稿件的数据库,改进了传统的操作方法和管理模式,提高了工作效率。杂志社采用该系统还可以进行网刊发布、管理以及期刊征订和发行处理。 相似文献
12.
S. L. Oswal R. G. Sindhe A. T. Patel J. P. Dave S. G. Patel B. M. Patel 《International Journal of Thermophysics》1992,13(4):617-628
Viscosities of several mono-, di-, and trialkylamines have been measured in the temperature range 298 to 333 K. It is observed that viscosities are highly dependent on shape, size, and association through H-bond or through dipole. Following the transition state theory, energy, Gibbs free energy, and entropy of activation of viscous flow have been calculated. The values of expansion energy for these liquids have also been calculated using free volume theory, and subsequently amines have been classified as volume-restrained or energy-restrained liquids. The group contribution method of Van Velzen, Cardozo, and Langenkamp for estimating viscosity has been examined with the present and literature data, and the new group contribution increments N
i and B
i for amines have been evaluated. 相似文献
13.
Vapor-liquid equilibrium data for the binary systems methyl butanoate/ethanol and methyl butanoate/propan-l-ol at pressures of 114.66 and 127.99 kPa are presented. Both mixtures yield an azeotrope, the compositions (ester) of which decrease quasi-linearly as the pressure increases. The experimental data for all the binary mixtures were fitted to a suitable equation and then used for comparison with predictions by ASOG and UNIFAC methods. These group contribution models give a good estimation of activity coefficients with an overall mean error less than 5% for all cases. 相似文献
14.
This paper introduces a certain graphical coalitional game where the internal topology of the coalition depends on a prescribed communication graph structure among the agents. The game Value Function is required to satisfy four Axioms of Value. These axioms make it possible to provide a refined study of coalition structures on graphs by defining a formal graphical game and by assigning a Positional Advantage, based on the Shapley value, to each agent in a coalition based on its connectivity properties within the graph. Using the Axioms of Value the graphical coalitional game can be shown to satisfy properties such as convexity, fairness, cohesiveness, and full cooperativeness. Three measures of the contributions of agents to a coalition are introduced: marginal contribution, competitive contribution, and altruistic contribution. The mathematical framework given here is used to establish results regarding the dependence of these three types of contributions on the graph topology, and changes in these contributions due to changes in graph topology. Based on these different contributions, three online sequential decision games are defined on top of the graphical coalitional game, and the stable graphs under each of these sequential decision games are studied. It is shown that the stable graphs under the objective of maximizing the marginal contribution are any connected graph. The stable graphs under the objective of maximizing the competitive contribution are the complete graph. The stable graphs under the objective of maximizing the altruistic contribution are any tree. 相似文献
15.
Eiichi Hoshino Kazunari Maruta Yasunao Wada Kazuo Mori 《Journal of the American Oil Chemists' Society》1995,72(7):785-791
The interaction of highly purified alkaline protease fromBacillus sp. KSM-K16 with the horny cells of human skin contained in skin grime was directly visualized by electron microscopy. It
became clear that the protease first penetrates the horny cells and then adsorbs, mainly onto the internal structure of the
cells at the initial stage of hydrolysis, and directly hydrolyzes the keratin filaments, though the marginal band surrounding
them retains its original shape. Then, hydrolysate produced from the keratin filaments flows out of the cell, and early in
the hydrolysis process keratin filaments decrease and then disappear, leaving a marginal band, i.e., the cell turns to a hollow
state. As a result, the remaining marginal band loses support from inside the cell, thus promoting cleavage and dispersion.
Until this stage in the protease reaction, the remarkable liberation of hydrolysis products as water-soluble protein does
not occur. 相似文献
16.
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18.
张绍璞 《天津轻工业学院学报》2010,(2):76-78
讨论了主成分分析中的几类问题的计算方法,重点揭示在协方差矩阵中对角元素相同时的第一主成分及贡献率和对角元素不同时的主成分贡献率.经讨论后给出有关计算公式,并说明这些计算公式在多元统计分析中的实际作用 相似文献
19.
语言是跨文化交流中最主要的手段,而词汇又是语言中最活跃的因素。由于受各自民族文化的影响,在跨文化交际过程中,会出现词汇空缺现象,给跨文化交际带来障碍。研究词汇空缺现象,了解并掌握造成词汇空缺现象的原因,明白其内涵,就可以避免在跨文化交际中产生误解,减少障碍,从而使跨文化交际得以顺利进行。 相似文献
20.
建立了驾驶室的三维有限元模型,并进行了结构模态分析;建立了驾驶室声学有限元模型以及声固耦合模型,通过对其声学模态及耦合模态进行分析,对驾驶室声场有了初步了解.对驾驶室进行谐响应分析,得到位移结果文件,为后续声场分析提供了边界条件。利用Sysnoise声学软件计算驾驶员耳旁声压曲线,并进行声学灵敏度分析,深入研究引起驾驶室内噪声的原因。采用边界元法分析了驾驶室各板件声学贡献,确定了地板为声学贡献量最大的板件。在以上研究的基础上,通过加强地板刚度对驾驶室进行修改。 相似文献