分析型CRM的供应链化框架模型研究

随着世界经济进入了电子商务时代,产品和服务的差异越来越小.以生产为中心、以销售产品为目的的市场战略逐渐被以客户为中心、以服务为目的的市场战略所取代.以客户为中心的分析型客户关系管理(分析型CRM)成为电子商务时代制胜的关键.文章从供应链的角度,分析了分析型CRM的组成、运作方式并提出了分析型CRM的供应链化的框架模型.     

ACCURACY ANALYSIS FOR QUASI-CAREY ELEMENT*

In this paper, a new triangular element （Quasi-Carey element） is constructed by the idea of Specht element. It is shown that this Quasi-Carey element possesses a very special property, i.e., the consistency error is of order O（h^2）, one order higher than its interpolation error when the exact solution belongs to H^3（Ω）. However, the interpolation error and consistency error of Carey element are of order O（h）. It seems that the above special property has never been seen for other triangular elements for the second order problems.     

一类生化反应中的数学模型

讨论一类生化反应模型的闭轨的存在性，不存在性和唯一性。     

Poverty and Development——Poverty Alleviation in Rural China

In the past 20 years,the developing countries have made remarkable progress,but they feel that rapid economic growth has failed to eliminate the widespread absolute poverty except China.In order to fight against poverty,Chinese government has adopted a few measures.     

基于AD694的直流伺服电动机实时数据采集的设计

介绍以8031单片机为系统控制核心的转换控制器的硬件及软件设计问题,提出了采用高精度AD694控制电机速度和数据采集的解决方案。     

青海忍冬属植物的引种栽培

对引进的11种忍冬的栽培试验表明，其对土壤物理性及pH要求不严，在光照充足和湿润的土壤上生长良好．种子经60天沙藏，在20％时发芽最好．插条经100mg／kgABT生根剂浸3—6小时，20-50天生根率在80％以上．     

一种安全Web应用的构建

讨论实现安全的Web访问问题 ,其中包含实现基于SSL协议的服务器和客户端认证 ,X .5 0 9证书的申请、签发和管理 ,以及证书用户身份的认证与授权等相关问题 ,并针对LDAP服务器应用于公钥体系所遇到的一个条目多个证书问题进行了阐述 .系统以ApacheTomcat服务器作为系统实现的原型基础 ,并辅以JAVA平台的安全工具和API来实现     

A robust DNA mechanical device controlled by hybridization topology.

Controlled mechanical movement in molecular-scale devices has been realized in a variety of systems-catenanes and rotaxanes, chiroptical molecular switches, molecular ratchets and DNA-by exploiting conformational changes triggered by changes in redox potential or temperature, reversible binding of small molecules or ions, or irradiation. The incorporation of such devices into arrays could in principle lead to complex structural states suitable for nanorobotic applications, provided that individual devices can be addressed separately. But because the triggers commonly used tend to act equally on all the devices that are present, they will need to be localized very tightly. This could be readily achieved with devices that are controlled individually by separate and device-specific reagents. A trigger mechanism that allows such specific control is the reversible binding of DNA strands, thereby 'fuelling' conformational changes in a DNA machine. Here we improve upon the initial prototype system that uses this mechanism but generates by-products, by demonstrating a robust sequence-dependent rotary DNA device operating in a four-step cycle. We show that DNA strands control and fuel our device cycle by inducing the interconversion between two robust topological motifs, paranemic crossover (PX) DNA and its topoisomer JX2 DNA, in which one strand end is rotated relative to the other by 180 degrees. We expect that a wide range of analogous yet distinct rotary devices can be created by changing the control strands and the device sequences to which they bind.     

面向公共机房的收费管理系统

上机计费是公共机房管理的重要组成部分。本文从应用的角度出发,给出了一个基于SQL Server数据库的面向公共机房的计费系统的设计,对其中的几个主要模块进行了介绍。本系统功能设计较为完善,具有良好的应用前景。