开设化学设计性实验的探索与实践

阐述开设设计性实验的意义,并在实践的基础上,给出了开设化学设计性实验的方案,总结了开设设计性实验的体会。     

基于Web的绿色制造系统

随着环境问题的日益严重，要求制造技术的发展必须与自然资源和环境相结合．由此提出了一个新的制造概念——绿色制造．本文对绿色制造的概念及其内容体系进行了论述，并就以web技术为支撑平台的绿色制造技术做了进一步地探讨．     

A Bayesian method for classification and discrimination

We discuss Bayesian analyses of traditional normal-mixture models for classification and discrimination. The development involves application of an iterative resampling approach to Monte Carlo inference, commonly called Gibbs sampling, and demonstrates routine application. We stress the benefits of exact analyses over traditional classification and discrimination techniques, including the ease with which such analyses may be performed in a quite general setting, with possibly several normal-mixture components having different covariance matrices, the computation of exact posterior classification probabilities for observed data and for future cases to be classified, and posterior distributions for these probabilities that allow for assessment of second-level uncertainties in classification.     

Generating random variates from D-distributions via substitution sampling

Laud et al. (1993) describe a method for random variate generation from D-distributions. In this paper an alternative method using substitution sampling is given. An algorithm for the random variate generation from SD-distributions is also given.     

非物质社会的互动式设计研究

工业社会的物质文明向信息社会的非物质文明的转变,在一定程度上导致设计模式从单向的输出状态转化为双向的互动沟通。互动式设计不再以某种具有确定功能的产品作为创作的目的,而是以创建一个可供使用者自由选择和发展的平台为依归。它所创造的体验具有多感官化、虚拟化、动态化、超现实化的特征。     

学生桌椅设计中的要素

随着生活水平的不断提高,人们对产品的需求从对物理功能的需求上升到对生理功能、心理功能的需求.如何满足不同身高、体形的学生对课桌椅的要求,如何提高课桌椅的舒适性、实用性、美观性,是学生桌椅设计中需关注的问题.     

斜腿刚构桥几何布局的优化设计

采用数学规划的方法从静力和动力两方面对斜腿刚构桥的几何布局进行优化设计。静力优化设计的优化目标是截面截面应力平方均值最小，动力优化设计的优化目标是结构自振周期平方和最小。采用了直接搜索法寻优。通过算例可知，这两种优化设计方法均可行，且均为刚性设计。     

Divergence-based estimation and testing with misclassified data

The well-known chi-squared goodness-of-fit test for a multinomial distribution is generally biased when the observations are subject to misclassification. In Pardo and Zografos (2000) the problem was considered using a double sampling scheme and ø-divergence test statistics. A new problem appears if the null hypothesis is not simple because it is necessary to give estimators for the unknown parameters. In this paper the minimum ø-divergence estimators are considered and some of their properties are established. The proposed ø-divergence test statistics are obtained by calculating ø-divergences between probability density functions and by replacing parameters by their minimum ø-divergence estimators in the derived expressions. Asymptotic distributions of the new test statistics are also obtained. The testing procedure is illustrated with an example.     

新形势下英语专业课程设置的思考

英语专业教育在现代信息技术、高科技网络技术日新月异的今天面临着新的挑战和机 遇,重新定位英语专业显得尤为必要。英语专业的概念不再是传统的"语言技能训练",而应具 有技能 专业,复合 开放的特征。英语专业课程设置应注意更新教育理念,改革课程体系,加 强课程建设,调整知识结构,优化课程内容,从而全面提高学生人文素质,增强相关专业素质, 以适应社会对英语专业提出的更高要求。     

强化宪法监督 促进以法治国

加强宪法监督是为了保障宪法的有效实施,这是我国建设社会主义法治的重要途径.就建设法治国家道路上宪法所处的地位以及以法治国与宪法监督制度的相互关系等问题进行了探讨.