TOPSIS-AHP方法在城市综合实力评价中的应用

在多指标综合评价中,层次分析法是确定指标权重的常用方法,但层次分析法的明显缺陷是具有主观性。为消除主观性,在层次分析法中引入逼近理想解的思想,从而构建一种确定指标权重的新方法--TOPSIS-AHP方法,并将其应用于线性加权综合评价模型中。实例表明,TOPSIS-AHP方法解决了城市综合实力评价中指标权重的确定,且评价结果更加符合实际。     

提高自考线性代数教学效果的几点突破

《线性代数》是高等院校一门重要的公共基础课,内容具有很强的抽象性,逻辑性,内在联系性。本文研究了自考课程《线性代数（经管类）》助学中要注意的教学重难点以及教学内容的内在联系,旨在帮助自考学生掌握线性代数课程,提高学习效率和自考考试成绩。     

工科线性代数的教改与创新

传统的线性代数教学内容偏重理论、教学手段滞后,阻碍了工科学生对线性代数知识的掌握和应用。文章基于数学建模思想引出概念教学法并借助计算机Matlab软件,对教学内容的设计和教学手段进行改革和创新,激发工科学生学习线性代数的兴趣,提高其理论联系实际和实践动手能力。     

供热系统的优化设计及其计算方法

本文介绍应用整数线性规划进行供热系统优化设计的决策方法,同时简单探讨了计算方法。     

广义镜面反射

文[1]给出了广义镜面反射的概念，本文在文[1]的基础上给出了广义镜面反射的若干性质并详细讨论了广义镜面反射的生成性。     

A Measure of Relative Dispersion

This paper suggests a measure of dispersion which is invariant with respect to linear transformations and distinguishes between large and small spreads.     

关于《线性代数》教学的思考

针对线性代数易学难懂,思维方式抽象的特点,提出注重概念的讲解、调整数学模块、加强数学思想方法等方式,提高数学效果与质量.     

关于定理凡是一次方程其图形必为平面的证明

本文给出了定理凡是一次方程其图形必为平面的四种证法，从而使此定理的证明更简便可行。     

Same vague expression, different conceptualizations

The study was to investigate the vague words measurement across native and non-native English speakers and gender differences. Ninety-two students from the University of Oklahoma participated in this study by filling out an internet-based questionnaire on the vague words. The researchers put each of the thirty-two vague words in a context, or the same word put into different contexts. The participants were asked to rate the degree or the numerical value that they thought was the most appropriate in the context of the vague word. It was found that ten out of the thirty-two words had a significant difference across the native and non-native English speakers, and two of thirty-two words had a significant difference across genders. The word ＂fairly＂ showed the most significant difference interactions of language speaking by gender.     

基于Visual Basic软件的直线度误差精确评定

根据最小条件法求直线度得出结果具有唯一性和准确性的特点,基于Visual Basic软件,利用最小条件法编写直线度误差软件。该软件具有数据输入、数据处理和数据输出等功能。以实例表明其结果是正确和唯一的。