The European high-speed train network: Predicted effects on accessibility patterns

The principal aim of this paper is to evaluate the impact of the future European high-speed train network on accessibility, by reducing time distance between places and modifying their relative location. We compare the current situation with that foreseen for the year 2010, according to the Outline Plan of the European High-Speed Train Network, in order to analyse which areas will most benefit from construction and improvement of the infrastructure. It is hypothesized that the high-speed train will certainly bring the peripheral regions closer to the central ones, but will also increase imbalances between the main cities and their hinterlands. A weighted average distance indicator is applied for this purpose. This measure identifies the spatial distribution of accessibility in the area of study, emphasizing the infrastructure effects, and locates accessibility changes at the European level. A Geographic Information System (GIS) has been used to carry out this study.     

基于DSRC和CDPD的先进公交系统

本文首先讲述了ITS中的2种通信技术——专用短程通信（DSRC）和蜂窝数字分组数据网（CDPD）的基本概念、工作原理及系统特点等，然后提出了一种基本这2种通信技术的先进公交系统，并对各个子系统的功能结构进行了描述。     

美国空军卫星控制网的现状与发展趋势

近几年的几场局部战争部分表明了现代军事航天系统的重要性。本文主要介绍了美国最重要的一个军事航天测控网－－空军卫星控制网的情况，希望能对了解美国军事航天测控体制有所帮助。     

数据包络分析有效性理论的一点探索

文章给出经典的基于输入的和基于输出的数据包络分析(DEA)模型,以及把基于输入和基于输出的模型相结合的相对效率模型,并且把这些模型引用到评价证券的相对有效性上,以风险作为输入,期望收益率作为输出,便可以用DEA模型评价每只证券的相对有效性.     

科技英语中数量增减的译法

本文系统地归纳了在科技文献中常见的涉及到倍数增减的结构及其表达方式     

黑龙江省医药销售企业现代化管理刍议

黑龙江省各医药销售企业规模日益扩大,伴随着信息技术在各行各业日益深入的应用,传统的手工记账已经不能满足日益增加的业务量的需要及进行有效控制和管理的需要.因此,应用现代财务软件已经势在必行.     

我国产权制度的变迁及其趋势

我国私营经济是在传统的公有制经济的土壤中发展起来的,其发展必然与传统体制发生摩擦与冲突。本文总结了我国产权制度变革的路径,分析了影响私营经济可持续发展的产权制度障碍,根据我国产权制度改革的轨迹,预测了产权制度变迁的趋势和特征。     

发挥本地优势与特色产业促进县域经济发展

县域经济具有地域特色,发展县域经济要注重发挥比较优势,突出特色产业,避免一些观念误区,注意选择特色、保障特色、发展特色,遵循特色产业发展规划,促进县域经济可持续发展.     

文化是生产力发服的内在动力

随着人类社会的发展,社会的文明程度越来越高,人们对文化的认识也越来越深刻.特别是文化与生产力之间的关系引起了人们的广泛关注.文化对生产力发展起着巨大的推动作用.     

Problem shifts and market research: The role of networks in business relationships

This article discusses changes in approach to the study of business relationships, and sees the paradigm concept as constituting an inadequate basis for describing gradually evolving changes in the perception of business. The frequent references to paradigms appear to focus more on state aspects than on change aspects of theory building. The article attempts to trace some of the changes in the perception of markets preceding the emergence of network theories, and relates the presence of an interactional approach to business studies to the concept of problem shifts (Lakatos). The development of interactional approaches in marketing is seen as representing a shift away from theory building commonly found in economics and organizational theory. Changes in the approach to the study of business relationships are interpreted as theoretical or empirical problem shifts, and are thus related to the a priori and a posteriori relevance of the continual evolution of alternative business theories. The article explores some of the epistemological relevance of the network theories to the study of market relationships, and the potential impact on continual changes in approach to the study of markets.