关于高校建筑设计课程教学的反思

全球化时代的来临和建筑行业的发展给我国建筑教育提出了新的要求,就新形势下高校建筑设计课程教学进行了一些思考,强调培养学生设计思维能力的重要性并针对如何提高设计思维能力进行了论述。     

Ocean Protection in Times of Intense Change

The ocean represents about 71％ of the surface of the earth. This alone shows that the ocean matters, and we should protect it. The ocean is the habitat of many ...     

An integrated production and inventory model for a whole manufacturing supply chain involving reverse logistics with finite horizon period

This paper proposes a model and solution method for coordinating integrated production and inventory cycles in a whole manufacturing supply chain involving reverse logistics for multiple items with finite horizon period. A whole manufacturing supply chain involving reverse logistic consists of tier-2 suppliers supplying raw materials to tier-1 suppliers, tier-1 suppliers producing parts, a manufacturer which manufactures and assembles parts from tier-1 suppliers into finished products, distributors distributing finished products to retailers, retailers selling products to end customers and a third party which collects the used finished products from end customers, dissembles collected products into parts, and feed the parts back to the supply chain. In this system, we consider a finite horizon period. A mathematical model for representing the behaviors of the system is developed. Solution methods based on decentralized and a combination of decentralized and centralized decision making process, referred to as the semi-centralized decision making process, are proposed to solve the model while the centralized decision making process is solved by a mixed integer nonlinear programming method. A numerical example is used to demonstrate the model and the solutions based on the three types of the coordination.     

回汉初中生生活满意度及教养方式的对比研究

对601名青海回汉初中生进行父母教养方式和生活满意度测试结果表明:汉族学生的父亲对其子女表现出比回族父亲更多的情感温暖与理解,而回族学生的母亲则比汉族学生的母亲表现出更多的拒绝与否认、惩罚严厉和偏爱被试的倾向;汉族学生在学业满意度、家庭满意度及整体满意度上显著高于回族学生;初中生的父母教养方式和生活满意度之间存在一定的相关.     

土族民间团体嘛呢会调查

嘛呢会普遍存在于青海省民和县三川地区的土族村落,是农村中老年居民自愿组成的民间团体.本文在田野调查的基础上,对嘛呢会的历史、构成、组织活动以及与村落管理系统的关系做了一些探讨.文章认为,嘛呢会是地缘、血缘和神缘关系三者结合的产物,反映了土族在宗教信仰体系上的多元特征.嘛呢会对于传承土族文化、整合土族社区发挥着重要的作用,同时又是土族老年人进行社会参与和情感交流的重要途径.     

Generalized exponential distribution: Moments of order statistics

In this paper, we consider the generalized exponential distribution (GED) with shape parameter α. We establish several recurrence relations satisfied by the single and the product moments for order statistics from the GED. The relationships can be written in terms of polygamma and hypergeometric functions and used in a simple recursive manner in order to compute the single and the product moments of all order statistics for all sample sizes.     

Sequential confidence intervals for the number of cells in a multinomial population

A two-sided sequential confidence interval is suggested for the number of equally probable cells in a given multinomial population with prescribed width and confidence coefficient. We establish large-sample properties of the fixed-width confidence interval procedure using a normal approximation, and some comparisons are made. In addition, a simulation study is carried out in order to investigate the finite sample behaviour of the suggested sequential interval estimation procedure.