电子与硼、碳和氮原子碰撞角分布的理论计算

用模型势方法研究和计算了电子被B、C、N原子散射的微分截面 (角分布 ) ,入射电子能量从 0 .1～ 1.0eV ,计算的角分布从 0°～ 180°.从理论研究和计算中看到 ,随入射电子能量的增加 ,电子被B、C、N原子散射的微分截面有规律性变化 .     

旅游预测模型及应用

本文分析了旅游引力模型、多元(逐步)回归模型和时间序列模型在预测旅游人数方面的优缺点.并给出了河北省今后几年国外游客人数及美国游客人数的预测结果.对河北省旅游业的发展提出若干建议.     

Analysis on Some of Software Reliability Models

Software reliability & maintainability evaluation tool (SRMET 3.0) is introducted in detail in this paper,which was developed by Software Evaluation and Test Center of China Aerospace Mechanical Corporation. SRMET 3.0is supported by seven soft ware reliability models and four software maintainability models. Numerical characteristicsfor all those models are deeply studied in this paper, and corresponding numerical algorithms for each model are alsogiven in the paper.     

The Viable System Model and Its Application to Complex Organizations

Stafford Beer’s Viable System Model is the best known of the many cybernetic models he constructed over a career spanning more than 50 years. He explored the necessary conditions for viability in any complex system whether an organism, an organization or a country. Although the model was first applied in his work in the steel industry, many further applications were made during his later work as a consultant. The best known of these was when he was invited by President Salvadore Allende of Chile in 1970 to model the social economy of that country. That experiment was brutally cut short in 1973 by the CIA assisted coup during which Allende was killed and Pinochet’s dictatorship installed. The model itself draws on mathematics, psychology, biology, neurophysiology, communication theory, anthropology and philosophy. It was first expressed in mathematical terms in ‘The Cybernetic Factory’; next it was described in neurophysiological terms in Brain of the firm; and finally according to logic and graphic presentation in Heart of Enterprise and Diagnosing the System for Organizations. This last version is the one that is most accessible. It enables people to address organizational issues in a way that skirts the usual categories and organization charts and gets down to the actual necessary functions, no matter who is performing them. With this model people can get a boost as they diagnose or design an organizations. One aspect is to discover what the organization’s critical variables are and to find or install the homeostats that will show that they are maintaining equilibrium. Within that context, the model will help you ascertain that the principle functions and communications channels are in place and can function effectively. A crucial aspect of the VSM is that it is recursive; that is that the same relationships can be traced from the shop floor to the corporation or from the village to the country. Two examples will be discussed: a small business and the Chilean work from the 1970s. It is hoped that this will encourage people to imagine a world that works much better than it does now and where management is not defeated by complexity. A version of this paper was delivered as the first Stafford Beer Memorial Lecture on July 8, 2007 at the World Multiconference on Systems, Cybernetics and Informatics in Orlando Florida.     

建构主义学习理论对物理课堂教学改革的思考

以建构主义学习理论为指导，结合多年来教学实践中的经验，提出了物理教改的几点思考：建构课堂教学的新模式，不断诱导学生建立新目标，充分发挥学生的主体作用，促进新、旧知识的交互作用，构造新的评价体系     

节能与新能源汽车推广模式初探

介绍节能与新能源汽车的推广模式,并对各推广模式进行优劣分析。     

政府管理与发展模式创新:关于浙江模式的几点思考

改革以来,浙江经济的发展态势令世人瞩目,因而浙江模式也在近年来引起社会各界的重视。本文对浙江模式的发展和特征、形成原因、面临的困境以及如何走出困境进行了阐述和分析。     

我国金融服务业的产出效应

随着经济水平的提高,社会生产和生活对金融部门的依赖程度愈来愈高,金融服务业对经济增长的促进作用也愈加突出,金融产业已经成为国民经济的重要基础产业。本文运用菲德(F eder)模型,结合变参数模型建立了我国金融服务业的部门溢出效应模型,以此研究我国金融部门对经济增长的促进机制。分析结果表明,我国金融部门对经济增长的促进作用主要表现在对国民经济的直接效应和通过对其他部门的溢出产生的间接效应;其次,金融部门作为国民经济发展的资金支持部门,其配置资本的效率表现得较为低下。     

教学准备——B-SLIM教学模式中的重要一环

备课及教学准备是B-SLIM教学模式教学环节中的重要一环。它是教师在把握教材、了解学生认知水平和能力及整合各种教学资源的基础上，确定教学思路，对课堂进行预设的一个重要手段，直接关系到教学效果的好坏及教学质量的高低。教师必须精心做好每一节课前的备课及教学准备，以期实现有效的课堂教学。     

论斯大林模式

20世纪20—30年代,斯大林执政时期形成的有别于在此前形成的新经济政策模式,被称为斯大林模式。斯大林模式的基本特征是政治上的高度集权,经济上的高度集中,文化上的高度划一。这一模式在历史上起过积极作用是毋庸置疑的,但这一模式存在极其严重的弊端,使苏联国民经济一直处于危机的边缘,尤其是后来把他等同于社会主义制度,使国际共产主义运动蒙受了巨大损失。