Sharp exponential and entropy bounds on expectations of generalized order statistics

Sharp lower and upper bounds on expected values of generalized order statistics are proven by the use of Moriguti's inequality combined with the Young inequality. The bounds are expressed in terms of exponential moments or entropy. They are attainable providing new characterizations of some nontrivial distributions. Received October 2001/Revised May 2002     

喷嘴温度场计算数学模型

扼要介绍了炼铁蓄热炉用喷嘴时的恶劣条件、破损报废原因 ,分析了喷嘴受热、传热的热交换类型 ,提出了用数值计算方法计算其温度场的网格单元划分数学模型及各单元温度的电算公式 ,同时给出了电算程序框图。     

电力拖动控制系统工程设计原理及应用

本文对现代电力拖动自动控制系统工程设计中最通用的工程设计法则—“电子最佳调节原理”和“最小 M_P 法则”,用频率法进行了详细论证,从而揭示出它们的区别和联系,最后对两种设计方法的动态性能指标进行了比较。     

论现代服装产业时尚及设计理念的发展趋势

随着现代经济文化技术的发展,"时尚"将成为社会整体的价值观念和生活模式,服装设计的理念呈现多元文化共存的格局,同时也将对服装产业产生深远的影响.本文提出现代服装产业时尚及设计理念的发展趋势:多元文化交融、休闲化、季节模糊化、电子化、全面环保、个性化定制.     

现代企业电子商务系统架构研究

现代企业面临着越来越激烈的全球竞争,电子商务作为其顺应信息时代的经营方式和竞争手段已经被越来越多的企业所采用。现代企业面临的商业竞争环境,要求电子商务对现代企业保持竞争力的作用,因此有必要采用构建一个通用的现代企业电子商务系统架构模型。     

信用是电子商务发展的“瓶颈”

电子商务是建立在网络上的经济商务活动 ,比传统商务更加依赖健全的信用体系。没有信用 ,就没有电子商务。分析和研究信用与电子商务之间的关系 ,提出建立适应电子商务环境的信用体系 ,是电子商务理论和实务的一个重要研究课题     

实时电子病历公开对缓解医患关系博弈分析

通过演进博弈方法分析医闹频发的现象,得到病历公开可有效缓解医闹的初步结论。进而用完全信息动态博弈分析病历公开后的医患关系,得到降低医方提供合适与不合理医疗服务的收益差是促使医患关系和谐的有效途径的结论。     

Cultural Dimensions and Prototypical Criteria for Multi-Criteria Decision Support in Electronic Markets: A Comparative Analysis of Two Job Markets

Electronic markets are virtual meeting places where buyers and sellers interact to trade products or services. The main motivation for both buyers and sellers to participate in an electronic market is the desire to maximize their private utility (Bakos 1998). Electronic markets therefore usually provide some form of communication, decision or negotiation aid for buyers and sellers to support their utility maximizing goals. This paper presents a comparative analysis of two electronic job market case studies conducted at a university in Europe (Brussels, Belgium) and in the United States (Newark, New Jersey). At the occasion of the universities’ career fairs, students (n = 392) and local companies (n = 57) were invited to participate in an electronic job market to identify the best job offers (n = 137) and students, respectively. Participants were able to create personalized software agents to aid their search and decision making activities in the market. Every software agent was embedded with a multi-criteria decision support tool to produce a rank ordered list of students or job offers. Preference data gathered from market participants’ use of the multi-criteria decision model allow us to construct relational preference structures using a technique based on the mathematical theory of fuzzy relations (Bandler and Kohout 1980). These preference structures express relationships among the criteria that students and companies have used to identify job offers and companies, respectively. The purpose of the paper is to present the communicative and cultural implications of these relational preference structures. The theories of Hofstede (1983), Hall (1977) and Trompenaars (1993) on cultural dimensions allow us to discuss cultural differences on the choice of prototypical criteria. The paper concludes with implications for the use of electronic markets in the staffing industry and the role of software agents in such job markets.     

电子商务在建筑业应用模式探讨

随着信息相关技术的发展,国际互联网已经为基于网络的建筑工程电子商务应用提供了一个良好的环境。在各种不同类型的电子商务中,企业对企业和企业对政府两种模式被广泛的使用。同时探讨了企业对企业系统在建筑行业的应用,并对招投标和采购两种模式分别进行阐述。此外,电子政府也正成为政府职能中重要的一环,并具体描述了具有五大功能模块的典型电子政府框架。     

电子商务的特征、障碍与对策

随着经济全球化 ,贸易自由化和信息现代化步伐的加快 ,电子商务以其空前无比的生命力推动着国民经济的飞跃发展。鉴于我国国情 ,电子商务在发展过程中也存在诸多的问题 ,我们要把握其特征采取相关对策 ,排除发展中存在的障碍 ,推动电子商务的发展。