Phenomenology of nonlocal cellular automata

Dynamical systems with nonlocal connections have potential applications to economic and biological systems. This paper studies the dynamics of nonlocal cellular automata. In particular, all two-state, three-input nonlocal cellular automata are classified according to the dynamical behavior starting from random initial configurations and random wirings, although it is observed that sometimes a rule can have different dynamical behaviors with different wirings. The nonlocal cellular automata rule space is studied using a mean-field parametrization which is ideal for the situation of random wiring. Nonlocal cellular automata can be considered as computers carrying out computation at the level of each component. Their computational abilities are studied from the point of view of whether they contain many basic logical gates. In particular, I ask the question of whether a three-input cellular automaton rule contains the three fundamental logical gates: two-input rules AND and OR, and one-input rule NOT. A particularly interesting edge-of-chaos nonlocal cellular automaton, the rule 184, is studied in detail. It is a system of coupled selectors or multiplexers. It is also part of the Fredkin's gate—a proposed fundamental gate for conservative computations. This rule exhibits irregular fluctuations of density, large coherent structures, and long transient times.     

Random and cooperative sequential adsorption on infinite ladders and strips

We analyze various processes where particles are added irreversibly and sequentially at the sites of infinite ladders or broader strips (i.e., on terraces) of adsorption sites. For sufficiently narrow strips or ladders, exact solution in closed form is possible for a variety of processes. Often this is most naturally achieved by mapping the process onto an equivalent one-dimensional process typically involvingcompetitive adsorption. We demonstrate this procedure for sequential adsorption with nearest-neighbor exclusion on a 2× square ladder. For other select processes on strips slightly too broad for exact solution, almost exact analysis is possible exploiting an empty-site shielding property. In this way, we determine a jamming coverage of 0.91556671 for random sequential adsorption of dimers on a 2× square ladder. For broader strips, we note that the complexity of these problems quickly approaches that for × lattices.     

论民国新儒家的政治合作化与现代化构建

民国新儒家认为政治现代化要通过合作化走和平建设之路,要先利用合作化帮助劳动阶级实现经济自助,培育和锻炼下层民众,再以合作化逐步改造资产阶级,调和阶级关系,最后以合作实现他们的理想政治王国。这是一个完整的政治构想,表达了儒家精神传统的济世情怀与对中国政治的国情思考,是西方合作文化在东方地域移植的必然结果。     

如何指导大学生进行数学建模竞赛

数学的广泛应用被视为科技进步的重要标志之一 ,通过构建和运用数学模型来解决实际问题 ,反映了数学应用发展的新阶段 .开展数学建模竞赛是培养高素质人才的一条重要途径 .提高大学生的数学建模能力和竞赛成绩 ,教师应重视从以下几个方面开展指导工作 :一、巩固学生的数学基础 ,培养应用意识 ,并使二者有机结合和相互促进 ;二、开发学生的想象力 ,通过探索讨论、小组活动与大型作业等途径提高学生的创新能力 ;三、激发学生的集体荣誉感 ,通过合作小组内的合理分工、密切协作和联合攻关 ,增强学生的合作意识 ;四、使学生掌握数学建模竞赛论文的结构 ,写作的具体要求和特点     

湘鄂渝黔边区域经济协同发展研究

多省毗邻的交界地域往往表现为经济的欠发达性、不协调性和不可持续性。应该走区域经济协同发展的道路，资源共享，获得成本优势；市场互利，做大产品市场；环境共治，实现可持续发展；提高区域整体实力，实现全局共赢。共享性、外部性、互补性、公共性是边区区域经济协同发展的路径选择，据此，区域经济协同发展要制订出相应对策。     

组织合作网与生产要素的流动

提出组织合作网的概念.由于传统的生产要素不合理,影响其流动,通过组建合作网,生产要素流动,资源重新配置,组织结构得以调整和优化,并得到创新,从而保持合作网的活力.合作网有个领头组织,由他带领使网内每个成员获利,创造出新的生产力.     

RH—2000S微机综合自动化在悬态焙烧炉系统的应用

主要介绍了RH—2000S微机综合自动化在悬态焙烧炉高压系统中的成功应用，通过分析微机保护装置的优点以及传统继电保护的缺点，提出了供电系统继电保护的发展方向。     

移动分布式数据库系统中合作事务恢复技术

形式地给出了合作事务定义及事务间由于消息交换而形成的各务间的检验点依赖和恢复依赖，基于这些定义，某一事务记检验点时，所有检验点依赖于该事务也记检验点，当某一事务恢复时，所有恢复依赖于该事务的事务也恢复到其检验点的状态，开发了一种适合于移动环境的事务恢复技术，；在事务正常的消息传送中，通过额外的一点带宽附加传送事务间的依赖关系，在事务记检验点时，尽可能并行地通知所有相关的事务记检验点，实验表明，该事务恢复技术能减少系统检验点的响应时间，提高系统的恢复速度及系统吞吐率，对网络带宽的要求基本没有增加。     

面向CSCW的CAD系统信息共享问题的研究

协同CAD是当今计算机辅助设计技术的一个发展方向。文章提出了一种基于传统CAD系统进行协同设计的理论与实践方法,首先给出了系统的体系结构及系统的主要组成部分,然后就系统设计中的几个关键问题,如协同组织信息共享、协同设计信息共享和协同过程感知中的具体问题进行了深入探讨,并提出了相应的解决方法。     

The strong cooperativity of dioxygen binding by dicobalt (II) diporphyrin compounds in nonaqueous solution at room temperature

Thermodynamic data were determined for the reversible binding of O₂ to two compounds of dicobalt(II) di(meso-tetra-phenyl)porphyrin derivatives with different lengths of diamidoaliphatic bridge (abbreviated to Co₂PP₈ and Co₂PP₄) in N,N-dimethylformamide at room temperature. The partial pressure of dioxygen necessary for half-oxygenation (P _1/2) and hill coefficient (n) at 298 K were determined as follows:P _1/2=54.2 kPa,n=2.0 for Co₂PP₈ andP _1/2=6.8 kPa,n=1.8 for Co₂PP₄, respectively. The rate equations of reversible oxygen binding by Co₂PP₈ were determined and the reaction path was proposed. The results of ther-modynamic and kinetic studies indicate that there exists strong cooperative effect during oxygenation of the compounds. The ESR observation reveals that the dioxygen complexes formed in the solutions are of superoxo (Co-O ₂ ⁻ ) type. Supported by the Research Foundation of the State Education Commission of China Zhou Xiaohai: born in 1962, Ph.D. Associate professor