Technological diffusion,the diffusion of skill and the growth of outsourcing in US manufacturing

The development of knowledge requires investment, which may be made in terms of financial resources or time. Open source software (OSS) has challenged much of the traditional reasoning by suggesting that individuals behave altruistically and contribute to a public good, despite the opportunity to free-ride. The lion’s share of the existing literature on OSS examines communities, that is, those individuals whom are already part of the OSS community. In contrast, this paper starts from users with the requisite skill to use and develop OSS. This group of skilled individuals could potentially invest into the development of OSS knowledge, but they may or may not do so in actuality. This paper, therefore, explores three issues, which have not been extensively explored in the literature, namely, (1) how frequently a group of skilled people use OSS, (2) reasons for differences among users and non-users in terms of use and attitudes, and (3) how frequently, and why, some users contribute to OSS projects (and thereby become developers). In doing so, we consider the opportunity costs of use and development of OSS, which has been largely neglected in the literature. We find that the individuals have a rather pragmatic attitude to firms and that many are active in both firms and OSS community, which raises many questions for future research about the role and influence of firms on the development and diffusion of OSS.     

空气焓差法测量不确定度计算和分析

基于公司现有焓差试验台制冷量测试原理,编写焓差法制冷量/制热量计算软件,在软件的基础上建立和分析焓差法测量不确定度。为制冷量和制热量的测试分析和测量不确定度的评定提供参考。     

论火电厂锅炉给粉机不同运行方式对锅炉燃烧效率的影响

对大型火力发电厂而言,锅炉燃烧效率的高低直接影响到整个机组的经济性。文章通过实验,探讨了锅炉给粉机在不同运行方式下对锅炉效率的影响,从而指导我们在日常运行中优化给粉机配置,提高锅炉燃烧效率。     

Market-Entry Strategies in Poland -

This paper reports findings of a study undertaken on market-entry strategies of UK firms in Poland. It presents a cross sectional profile of UK firms investing in Poland, their motives for entering the Polish market, and their entry strategies and assesses their performance in terms of their entry strategies and experiences with regard to financial, technological, marketing and strategic aspects. The paper compares the findings with international market-entry theory and concludes by examining managerial implications of the study.     

Using Internet Resources in Teaching Financial Reporting and Analysis of Multinational Enterprises

Abstract

There has been an increase in the number and type of sources of corporate financial information on the Internet in recent years. The number of corporations that have web pages which post corporate financial information is increasing; in addition, many government and regulatory agencies are also posting corporate financial information. Furthermore, there are some third-party sites that post corporate financial information. In recent years some software has been developed or is in the process of being developed to gather, analyze, and monitor information available on the Internet to accomplish specific tasks on behalf of users. The purpose of this article is to provide some sources of corporate financial information on the Internet and illustrate how to use these resources in teaching international business and, more specifically, financial reporting and analysis of multinational enterprises and to point out some of the advantages and limitations of these resources.     

基于Multisim10的全减器的设计与仿真

Multisim软件以其强大的仿真功能,在电路设计中已经广泛应用。文章基于NI公司的推出的新版本Multisim 10设计了全减器,并对设计进行仿真和理论分析,缩短了电路开发的周期,更加方便地计算电路以及调整参数,使设计的电路达到预期的要求。     

浅谈软件无线电技术及其应用

软件无线电是将硬件作为无线通信的基本通用平台,用软件实现尽可能多的无线通信功能。它被视为继模拟和数字技术后的又一次电子技术革命。未来理想的网络将是一个统一网络,这个网络会容纳多种协议与标准,将对各种传播环境与物理介质进行适应,还有更加开放的接口需要其来提供,所以软件无线电将会有更加广阔的发展前景。     

高校机房管理与维护的探索

机房管理与维护直接关系到大学教学效果和学生自学能力的培养。本文从机房管理制度、计算机软硬件维护、服务器的管理维护等方面出发,探索一套管理维护办法。     

浅谈如何解决中药材电子商务软件中信息不安全方案

新型的电子商务模式在改变了传统的中药材交易模式,降低交易成本的同时,存在着Cookie技术安全、软件对用户输入的数据没有进行合法判断、数据传输过程未有效加密以及数据库的敏感信息加密算法简单等安全问题。为提高中药材电子商务软件的信息安全,应对应用程序、传输的数据进行对称加密,对数据库中的敏感信息进行不可逆加密,对称加密体系和非对称加密体系结合使用,定期更换数据库系统密码。     

论过程方法和系统方法应用于军用软件质量管理

文章概述了过程方法和系统方法，研究了相关模型，综述了这两种方法在军用软件质量管理工作中的应用，并对如何更好地应用过程方法和系统方法提出了几点看法。