组合逻辑电路中竞争冒险的虚拟仿真实验设计

竞争冒险现象是组合逻辑电路工作状态转换过程中经常出现的现象,而实验检测法是最为可靠的竞争冒险检测方法,通过以Multisim软件为平台进行虚拟的仿真实验,可以形象生动地展示竞争冒险现象及其消除方法。     

Cultivation of taste and bounded rationality: Some computer simulations

One can approach the economics of the arts, as any field of applied economics, in either of two ways. First, one can treat economic theory and econometric technique as subjects settled by specialists in those fields, to be used in the ec onomics of the arts as they are given, very much as if one were studying the demand for maize. Alternatively, one can treat the economics of the arts as a field which may need and suggest its own developments in theory and technique, suitable to its spec ial problems and processes, from which general economic theory and econometric theory might in principle learn something. Perhaps this latter view is implausible, given the high state of development of economic theory and econometrics in the modern liter ature. Yet many of the advances embodied in these fields have come from particular areas of application-and the economics of maize has been a particularly fertile field.I am indebted to participants in the Seventh International Conference on Cultural Economics, Fort Worth, Texas, October 1992; to p articipants in the Seminar on the Economics of the Arts, Venice, Italy, December 1992; to participants in the conference of the Pennsylvania Economists' Association, Wiles-Barre, PA, June, 1993; to participants in the second conference on Simulating Soci eties, Siena, Italy, July 1993; to participants in the conference of the Society for the Advancement of Behavioral Economics, Rensselaerville, NY, August 1993; and to participants in the Third Conference on Artificial Intelligence in Economics and Manage ment, Portland, OR, August 1993, for useful comments on topics related to the research reported in this paper. Errors and omissions are, of course, attributable to the author.     

Dynamic Monte Carlo simulation of linear SAW polymer chain near a flat surface

Investigation of the conformational properties of a SAW polymer chain near an impenetrable, non-interacting flat surface showed that the chain at first contracted and orientated itself to slightly parallel when it pulled close to the surface and at last elongated and reoriented itself to slightly perpendicular to the surface at very small distance from the surface. Simulation showed that most of the disappeared configurations were of large size at moderate distance from the surface while they were of small size at very small distance from the surface; and that the mean-square end-to-end distance was much more prone to be influenced by the surface than the mean-square radius of gyration . The orientational correlation between the direction of the longest principal axis of the moment of inertia and end-to-end vector was also discussed.     

编辑加工中常见问题辨析

分析编辑加工中经常遇到的国家标准没有明确规定或容易出错的问题,如计算机仿真图的编辑加工、直径的表示方法和缩略语的使用等,并提出相应的建议.     

船舶电站仿真系统数学模型

阐述了船舶电站计算机仿真器逻辑和控制系统数学模型及系统动态特性的数学模型,并着重介绍了动态特性数学模型的计算机算法。     

经管类专业ERP综合实践教学体系的构建

紧密结合北京师范大学珠海分校14个经管类专业的实际情况,研究并构建了适合于经管类专业应用型人才培养的ERP综合实践教学体系。阐述了ERP综合实践教学体系的教学理念,即坚持"以结果为导向"和"建构主义"教育理念,提出了ERP综合实践教学体系的建设目标,阐述了ERP综合实践教学体系的基本内容,包括以社团活动为载体的启蒙式学习、以ERP基本原理为基础的理论介绍、以实物沙盘为核心的感性经营体验、以电子沙盘为主体的理性经营体验和以U8软件为平台的岗位实操训练五个层面,同时讨论了教学方法以及考核评价方法。     

基于Java的数据结构算法演示系统开发

本文详细介绍了在Jcreator pro开发平台下,如何利用Java语言设计实现子线程、链表的合并、表达式求值、图的广度优先算法和稀疏矩阵的转置等数据结构算法,实现动画和算法的同步演示.     

浅谈大学生学科竞赛之“全国计算机仿真大奖赛”的教学体会

大学生学科竞赛能够培养学生的创新意识和实践动手能力,同时也是大学教师教学业绩和大学教学质量评估的要素。然而,优秀的学科竞赛成绩离不开大学教师的教学与指导。论文以“全国计算机仿真大奖赛”为例,分析了该竞赛的命题特点,以及参赛学生需要具备的知识技能,并分享了该竞赛的组织、培训、准备等方面的教学体会与经验,对各大学在组织该竞赛的培训与教学等方面具有重要的指导意义。     

半导体制冷的圆柱体三维传热模型及仿真

考虑热源和外部环境对圆柱体三维传热模型和温度场分布的影响,建立了基于半导体制冷的圆柱体三维传热模型,利用变量分离法和拉普拉斯变换法,导出了其三维温度场的封闭解析解．通过数值计算和编程仿真,给出相应的仿真结果,分析了半导体制冷片的位置变化对圆柱体三维温度场的影响特性．为进一步分析圆柱体三维温度场及其应用提供理论依据．     

虚实结合的PLC远程综合网络实验控制系统的设计

提出了基于虚拟现场对象的PLC网络控制系统设计方案和技术实现,以基于组态软件MCGS虚拟的传送带、机械手系统以及现实的变频调速系统为底层控制系统,说明了具有远程监控功能的PLC网络控制系统构建过程,指出了这种虚实结合的PLC网络控制系统的独特优越性。实际运行证明,该系统成本低,柔性强,网络层次丰富,是一种可激发学生创新能力的现代综合设计性实验平台。