海运服务贸易的"绿色壁垒"机理分析

阐述海运服务贸易绿色壁垒的概念和特点,重点对海运服务贸易绿色壁垒进行机理分析、通过分析得出结论：当A国海运服务市场的准入标准高于B国时,B国的航运企业会在仅服务B国内海运市场和同时服务A、B两国海运市场之间作选择．当A国准入标准升高到某一阈值,B国航运企业的上述两种选择利润将是无差异的、对于A国航运企业来说,把其在完全垄断和寡头垄断之间做出无差异选择的标准定义为Sd,如果排挤外国航运企业的标准Se〉Sd,A国航运企业宁愿选择没有准入标准的寡头垄断,否则A国航运企业更愿意执行标准Se．     

高校图书馆网站建设的调查分析和对策研究

以基于Internet的图书馆服务平台为研究的支持环境,开展了Web站点中信息管理方式、网上交流平台、用户教育等情况的调查和统计,通过分析相关案例中的成功与不足之处,阐明了信息技术在图书馆网站信息管理、网上教育培训等方面所起的作用,提出了促进图书馆网站进一步完善的若干建议.     

高校图书馆网上参考咨询工作探讨

网上参考咨询是图书馆信息咨询服务在网络环境下的必然产物。在分析了国内高校图书馆网上参考咨询服务的现状和存在的问题后,提出了网上参考咨询的发展策略和若干建议。     

Ajax技术在Web Services应用中的安全研究

分析了Ajax技术的工作原理,讨论了其在Web Services应用中存在的安全问题,给出了用户服务请求．中包含的敏感信息的保护方案,重点介绍了一种在Ajax技术下的Web Services的访问控制策略,充分利用了基于角色的访问控制策略,并对其做了扩展,提出了基于逻辑的访问控制策略。     

多模式公交服务模式及时刻表协同优化设计

考虑多模式公交服务模式和时刻表的交互作用,建立了多模式公交双层优化模型,上层协同优化多模式公交服务和时刻表,下层考虑乘客出行选择实现多模式公交的客流分配,为上层提供输入.针对双层模型求解的复杂性,设计了相应启发式的求解算法,采用遗传算法求解上层模型,应用Dial算法求解下层模型.最后,结合江苏省江阴市K1路和上海市73...     

Efficient Coordination by Optimal Allocation of Decision Rights for Participants on Electronic Financial Services Markets

Information technology (IT) is enabling large companies and particularly banking firms to create new forms of organizations. Both globalization of markets and stronger regulation throughout the world puts pressure on banking firms to either spend more money coordinating business activities in the traditional hierarchical ways or to employ new forms of organizations enabled by (lower costs of) IT. When facing uncertain demand in multiple horizontal markets, resource allocation problems occur. Accordingly, the location of decision authority in a multilevel hierarchical organization has profound impact on the performance of the firm. The firm has to design its coordination structure, which determines who makes the resource allocation decisions. Considering the tradeoff between pooling effects in the case of centralized decision-making and better assessment of local markets in the case of decentralized decision-making, the decision problem where to locate decision rights to maximize total profits has to be solved. In this paper we investigate for both independent and dependent demands the total profits for each of the possible coordination mechanisms: centralized decision-making, decentralized decision-making, and intermediate-level decision-making. It turns out that—depending on the crucial parameters of the firm—decentralized decision-making or centralized decision-making may be optimal. But in many relevant cases the optimal location of decision rights is at an intermediate level of the hierarchy. We illustrate the findings by considering the banking firm coordinating equity capital allocation by granting alternative decision rights to their employees as participants on electronic financial markets. Finally we discuss the generality of the approach and its applicability in other areas such as inventory management.     

需要层次论与高校素质教育中图书馆的对策

运用马斯洛的需要层次理论,分析判定了高校不同群体读者的需要等级,提出了高校素质教育中图书馆的对策。     

多对多异步Web Services实现分布式GIS的研究

从分布式地理信息系统的应用出发,考虑到在一次调用中客户提出多个服务请求的情况,提出了多对多异步RPC模型,讨论了该模型的各个组成部分的功能及调用关系,并进一步阐述了运用线程池和异步Web Services技术实现模型的方法.     

试论北京城市社区服务的发展趋势

北京市的城市社区服务经过 1 0多年的发展 ,现已得到政府的重视和社会的支持 ,社区工作队伍不断扩大 ,社区服务管理手段日益现代化、法制化 ,社区中的各项设施已具有一定规模 ,初步形成网络 ,但仍滞后于群众需求 ,社区服务发展不平衡 ,居民的满意度尚不太高。根据北京城市社区服务的发展现状和今后发展的宏观背景 ,北京城市社区服务将在今后 1 0年中呈社区服务功能强化、服务设施完善配套、形成社区服务良性运行机制、社区服务人员专业化的发展趋势。     

Analytical evaluation of the characteristic curve of a blood bank and its usefulness in blood banking

In this paper the characteristic curve of a blood bank (BB) for a particular blood group (BG) (which expresses the probability of ultimate wastage of a unit of blood by outdating as a function of the age of blood entering the BB) is evaluated analytically and its usefulness is examined. The application of the model developed is examined in a major teaching hospital.