Dynamic Evolution with Limited Learning Information on a Small-World Network

This paper investigates the dynamic evolution with limited learning information on a small-world network. In the system, the information among the interaction players is not very lucid, and the players are not allowed to inspect the profit collected by its neighbors, thus the focal player cannot choose randomly a neighbor or the wealthiest one and compare its payoff to copy its strategy. It is assumed that the information acquainted by the player declines in the form of the exponential with the geographical distance between the players, and a parameter V is introduced to denote the inspect-ability about the players. It is found that under the hospitable conditions, cooperation increases with the randomness and is inhibited by the large connectivity for the prisoner＇s dilemma; however, cooperation is maximal at the moderate rewiring probability and is chaos with the connectivity for the snowdrift game. For the two games, the acuminous sight is in favor of the cooperation under the hospitable conditions; whereas, the myopic eyes are advantageous to cooperation and cooperation increases with the randomness under the hostile condition.     

《工厂化验员速查手册》

(第二版,ISBN 978-7-122-06758-6)该手册简明扼要地汇集了工矿企业中化学分析常用有关检测技术图表资料及基本知识。全手册分为十二章:常用玻璃仪器及其他器皿和用品,天平,计量单位与常用理化数据,常见化学物质的物理、化学特性,水、试剂及溶液,标准、检     

用原始问题优化物理教学的实践

论述了高三物理教学中,合理运用原始问题改进丰富学生课堂学习,完善学生物理作业,培养学生问题意识、开发学生创新能力并取得成效.     

On Korn’s Inequality

Two models based on the hydrostatic primitive equations are proposed. The first model is the primitive equations with partial viscosity only, and is oriented towards large-scale wave structures in the ocean and atmosphere. The second model is the viscous primitive equations with spectral eddy viscosity, and is oriented towards turbulent geophysical flows. For both models, the existence and uniqueness of global strong solutions are established. For the second model, the convergence of the solutions to the solutions of the classical primitive equations as eddy viscosity parameters tend to zero is also established.     

中国催化成就奖和中国催化青年奖简介

为奖励在催化科学和技术研究中做出原始创新性或创造性成果、对中国催化科学的发展和重大应用做出突出贡献的中国催化科学工作者，2005年中国化学会催化委员会设立了“中国催化成就奖”（冠名“张大煜奖”，National Catalysis Award）“中国催化青年奖”（National Catalysis Prize for Young Scientists）．     

基于CPLEX的原始——对偶嵌套分解算法

本文介绍了一种求解大规模下三角结构线性规划问题的原始一对偶嵌套分解算法，并以CPLEX9.0作为核心求解器将算法实现。原始—对偶嵌套分解算法将原问题分解成一系列子问题，每个子问题既可以收到来自前一阶段子问题的价格信息，又可以收到来自后一阶段子问题的资源信息，较传统嵌套分解算法具有更加平衡的信息传递方式和良好的收敛性。实验数据表明，该算法在求解较大规模、稀疏度较小、耦合度较小的下三角结构线性规划问题时，相比单纯形法，在时间效率上有明显提高。     

深挖教材习题内涵,全面提高学生素质

教材是学生学习的蓝本,教材上的例、习题怎么处理?如果仅仅从"难度"上来看这些例、习题,不仅老师,学生都会觉得它们太"简单"了,于是乎,不少老师在处理这些例、习题时都"惜时如金",生怕"浪费"了时间,将更多的时间用在做各种资料上.……     

横看成岭侧成峰 远近高低尽相同

据最新网络资料考证，东汉末年赤壁之战后．刘备阵营对诸葛亮的神机妙算、雄才大略大为钦佩．上下同仁皆向诸葛亮讨教使自己变得聪明的良方，诸葛亮答复：“数学使人聪明”．于是刘备阵营兴起一股学习数学的热潮，刘备和五虎上将纷纷拜诸葛亮为师，择日开堂讲授数学．月余之后，诸葛亮为检查大家的学业水平，出一小题考查．言明次日九时草堂汇报．     

Physical Explanation of Influence of Twin and Three Satellite Formation Mode on the Accuracy of Earth's Gravitational Field

The simulated results of the influence of twin and three satellite formation mode on the accuracy of GRACE Earth＇s gravitational field are interpreted from the viewpoint of physics. Because the effective satellite observation information of Earth＇s gravitational field recovery from three-satellite formation mode is only one time more than that of twin satellites, the improvement of the accuracy of Earth＇s gravitational field is far lower than one order of magnitude based on the simple two-times differences between three satellites. Three efficient ways of improving largely the accuracy of measurement of the Earth＇s gravitational field in the future international satellite gravity measurement programme, including proper decrease of satellite orbital altitude, the increase of accuracy from key payloads and an innovation of satellite observation mode are proposed.