基于极限编程的软件质量管理

极限编程是一种轻量型、敏捷软件开发方法,它尤其适于中小软件企业。文章探讨了在极限编程架构中如何开展软件质量管理,并指出了极限编程对于我国软件行业的指导意义和应用前景。     

基于非线性规划的企业销售利润优化模型

针对企业销售利润最优化问题,分析了相关概念和相互之间的关系,以企业销售利润为目标函数,建立了非线性规划模型,说明了约束条件的构成,最后以实例对提出的模型进行了详细说明,有助于企业销售管理决策,具有一定的应用价值。     

基于滚动时域优化的高速铁路车站到发线动态调整研究

高速铁路车站到发线动态调整是调度指挥工作的重点之一,具有复杂多变、实时性强的特点,亟需实现到发线调整的自动化和智能化。阐述高速铁路车站到发线动态调整问题本质,引入滚动时域调度策略,建立高速铁路车站到发线动态调整模型。该模型为以列车晚点总时长最小为目标的0-1整数规划模型,采用遗传算法求解。以某高速铁路车站为例,根据列车运行图中列车到发时刻和晚点信息进行计算。研究结果表明:该模型可以有效提高到发线调整的实时性,保障列车在车站内稳定运行,为高速铁路车站智能调度提供了研究支持。     

Televised Consumption: Women,Advertisers and the Early Daytime Television Industry

This article looks at ways in which the US broadcasting and advertising industries conceptualized the female consumer in the immediate Post War period. It explores the emergence of daytime television and discusses broadcasters' views of their predominantly female audience. The article argues that by grasping the underlying principles that were developed in the early daytime television industry, one can gain a better understanding, not only of the manner in which female audience members were addressed in the 1950s, but also, to some extent, of the ways mass media address women today.     

从图论角度对布点问题求解

在日常生产和生活中,往往有一类问题是关于有限的资源在一定条件下的合理利用问题,且要达到最大的利益或者价值。其中包含站点的位置选址问题,通常我们把这类问题归纳为整数规划中的最优问题,利用MATLAB软件我们可以轻松的得到问题的数值解。但对站点的位置选址问题,我们发现利用图论的理论,从图论角度进行分析和求解,可以更轻松。     

Meta programme patterns in accounting educators at a UK business school

The purposes of this study are to compare the results of two alternative methods of eliciting meta programmes, the Motivation Profile Questionnaire (MPQ) and the Language and Behaviour (LAB) Profile semistructured interview, and to identify whether accounting educators exhibit any dominant meta programmes. An individual trained to use the LAB Profile interviewed a sample of 14 accounting educators who then completed the MPQ. The results of the MPQ and the LAB Profile identified three common patterns, indicating a good degree of correlation between the two methods. Identification of the key meta programmes of the accounting educators may have benefits in their teaching and is the precursor to a larger study of the meta programmes of accounting undergraduates, which can now be undertaken in a cost effective way using the MPQ.     

可编程通用阵列逻辑器件应用技术讲座

本讲座通过介绍专用集成电路(ASIC)入手,介绍了可编程逻辑器件的原理和结构,从应用的角度介绍通用逻辑器件(GAL)的结构和特点,以及有关PLD的编程技术,最后给出几个实用的编程实例和GAL器件的应用电路.     

可编程通用阵列逻辑器件应用技术讲座

本讲座通过介绍专用集成电路(ASIC)入手,简叙可编程逻辑器件(PLD)的原理和结构,从应用角度介绍通用阵列逻辑器件(GAL)的结构和特点,着重阐述PLD的编程技术,最后给出几个PLD器件应用编程实例.     

基于应急物资优先权的铁路空车调配研究

近年来突发性的自然灾害发生频繁,应急物资调运优化问题成为研究热点.基于模糊综合评判方法对应急物资优先权进行了分析,并结合车种代用,构建了考虑应急物资优先权的车种代用空车调配模型.分析表明,若适当选取多目标的权重系数,则该多目标模型既适用于应急救援过程中的物资调运,又适用于日常的物资调运.     

A Frontier Approach to Testing the Averch–Johnson Hypothesis

The mathematical programming technique Data Envelopment Analysis is used to test the famous hypothesis of Averch and Johnson that utility regulation leads to overuse of capital because the regulated firm earns a return s greater than its cost of capital r, an implicit capital subsidy resulting in allocative inefficiency. Technical and allocative inefficiency are based on cost and production frontiers from 337 electric generating plants using 1970 data, and r is based on the Capital Asset Pricing Model. Significant capital overuse and general failure to minimize costs is detected, but a second‐step regression analysis finds no relationship between the overuse and the s–r subsidy. A small updated data set covering the period 1980–2004 suggests that overuse of capital is no longer a problem, a result that may be owing to recente deregulation and restructuring.