嵌入式系统中引导程序的实现

BootLoader(引导程序)是嵌入式系统CPU加电后第一个开始运行的代码.本文介绍了BLOB完成的功能,并详细分析了BLOB在基于三星公司SS044BOX处理器的嵌入式系统板上的移植过程.     

Media allocation model using nonlinear benefit curves

An integral part of planning advertising campaigns involves the selection of those media vehicles that maximize the effectiveness of the advertising effort. This article describes a media allocation model designed to provide the media planner, responsible for a particular advertising campaign, with relevant information for use in selecting the most appropriate media vehicles and in determining the number of insertions in each vehicle. It is based on the derivation of nonlinear benefit curves for candidate media vehicles that can be derived from commercially available response data and from subjective estimates gathered from media planning experts. When tested in an actual advertising campaign, the results serve to provide relevant information that can make the media allocation decision a more objective one.     

RBAC在B／S系统中的应用

本文根据RBAC96模型,介绍了RBAC的基本理论,分析了RBAC的优点,并结合银行业务系统,讨论了KBAC在B/S系统中的应用.     

基于单片机的数字式温度计研究

随着时代的发展，数字式温度计在信息、电子、物流等许多领域都被广泛应用。文章阐述了基于单片机技术对普通温度计的改进，通过利用AT8951单片机的强大运算功能，对复杂数据的输入、运算和显示的处理能力进行分析。使数字式温度计在各种检测环境中对温度的监测反应更快、更精确、测量范围更广。     

Duopolistic competition between independent and collaborative business-to-business marketplaces

This paper studies imperfect price competition between two intermediaries in an electronic business-to-business matching market with indirect network externalities. The intermediaries have different ownership structures: an independent incumbent competes with a collaborative buy side consortium to attract buying and selling firms. When firms can register exclusively with one intermediary, the incumbent can deter entry only if the number of consortium owners is sufficiently small. Otherwise, the consortium can enter and monopolize the market. When firms can register with both intermediaries simultaneously, the consortium can always enter and both intermediaries stay in the market with positive profits.     

图算法在物理实验中的应用

本文以具体实例说明,在物理实验课上,如何利用图算法检查学生的实验数据及其计算结果。     

Actors, resources, activities and commitments

A new concept, commitments, is introduced and defined as “agreements between two or more social actors to carry out future actions” and its incorporation into, and articulation of, the actors-resources-activities model described. Commitments are distinguished from the concept of commitment as traditionally used in inter-organisational relationships. The latter is mainly an affective measure at the level of an individual concerning the general relationship between buying and selling organisations. By contrast commitments are agreements made between actors and range from the specific and everyday to the general and strategic.The theoretical background and nature of commitments are described and how commitments relate to and enrich each of the elements of the ARA model demonstrated. The application of the concept to B2B relationships at the level of individual, group, organisational and net actors is set out and implications of the use of the commitments concept for researchers and managers are suggested.     

Mobile technology usage and B2B market performance under mandatory adoption

This paper investigates the relationship between mandatory adoption of mobile information technology and market performance in the business-to-business (B2B) setting. This study presents and tests the B2B technology satisfaction model (TSM), including perceived loss of control as the mandatory technology acceptance-specific variable. The results of this study reveal that integrating perceived loss of control with user satisfaction and the TAM (technology acceptance model) in a single model can better explain the B2B market performance model. The empirical results suggest that perceived loss of control has a negative effect on user satisfaction and perceived market performance is influenced by user satisfaction and perceived usefulness. Managerial implications of the study are discussed.     

基于eCos操作系统的仪器设备远程监控系统设计

现代仪器设备工作于恶劣环境中,传统的监控方式采用RS232、RS485等方式,其传输距离有限,不利于集中远程监控,文章开发一种基于eCos操作系统的新型远程监控系统,通过RS232接口和设备互联,实现远程信息获取功能。该系统成本低廉,采用WEB方式控制,使用方便。     

基于B／S模式创新实验管理系统的设计

文章论述了创新实验管理系统的设计。创新实验是实验室开放的一种重要形式，创新实验管理系统包括后台数据库的建立以及前端应用程序的开发两个方面。利用这个系统，教师可以通过网络发布自己的课题，学生则可以选择自己喜欢的课题。其功能还包括师生双向选题，学生自主命题，在线答疑交流，在线提交实验报告、论文等。