如何用C语言开发CAD应用软件

为了促进用C语言开发CAD应用软件在机械设计、工程分析、化学工程等领域的应用，在此通过实例简单介绍了AutoCADR12forWindows版本ADS应用程序开发环境以及如何用ADSC语言开发CAD应用软件的方法，包括应用程序的创建、加载和执行等。     

港口货流预测分析及软件技术

物流技术随着电子商务的崛起已逐渐成为新经济研究的焦点。随着入世的临近及入世的实现，作为物流中心枢纽的港口，其货（物）流将会发生极大的变化，无论是货种、流向还是货物公司及运输方式、运输始发地等，都会有较大的改变，迫切需要行之有效的预测方法及软件。基于灰色理论的预测方法较传统的统计预测方法有较大的不同，它不需要多数据统计的样本，是解决少数据不确定系统预测的有效方法，对我国新港多，港口统计数据不稳定不全面等情况尤为合适。本预测分析软件运用最新的数据库与界面技术，使得预测快捷、直观、界面友好。     

基于LabVIEW平台的三容水箱实验系统的设计和实现

文章介绍了在LabVIEW开发环境下,一个应用于教学中的三容水箱液位控制实验台的设计和组成。此实验台的设计分为硬件和软件两部分,硬件设计主要根据液压知识完成;软件部分主要根据所要完成的实验项目设计,此外文中重点说明了PID控制器的设计过程。通过此实验台学生可在熟悉硬件设备的基础上,全面具体地掌握控制工程的基础理论知识,对教学起到很好的辅助作用。     

Groups Formation and Operations in the Web 2.0 Environment and Social Networks

The Internet and the Web are evolving to a platform for collaboration, sharing, innovation and user-created content—the so-called Web 2.0 environment. This environment includes social and business networks, and it is influencing what people do on the Web and intranets, individually and in groups. This paper describes the Web 2.0 environment, its tools, applications, characteristics. It also describes various types of online groups, especially social networks, and how they operate in the Web 2.0 environment. Of special interest is the way organization members communicate and collaborate mainly via wikis and blogs. In addition, the paper includes a proposed triad relational model (Technology–People–Community) of social/work life on the Internet. Particularly, social/work groups are becoming sustainable because of the incentives for participants to connect and network with other users. A discussion of group dynamics that is based on the human needs for trust, support, and sharing, regardless if the setting is a physical or virtual one, follows. Finally, future research directions are outlined.     

外贸函电教学辅助软件设计及作用

随着外贸前景的看好，《外贸函电》课程不仅对于外贸和商务英语专业的学生来说越来越重要，甚至吸引了众多非经济、非英语类学生的学习。面对新时期《外贸函电》教学的新特点，学生人数多、学习热情高涨、外贸背景知识和英语功底参差不齐，笔者提出了以词块法为原理，开发制作外贸函电教学软件，用教学软件来辅助教学。     

主成分分析方法在区域经济统计分析中的应用

根据主成分分析的原理和方法，利用SPSS社会统计软件分析得出，2003-2007年孝感市经济发展总体势头是良好的，但也存在一些问题。首先，经济总量不大且增长速度缓慢，需要因势利导，大力调整产业结构；其次，投资增长速度不快，需要依托武汉经济圈的优势加大招商引资的力度；最后，工业基础薄弱，发展缓慢，需要制定政策，引进人才，改进技术。     

Comparing the accuracy of several network-based COVID-19 prediction algorithms

Researchers from various scientific disciplines have attempted to forecast the spread of coronavirus disease 2019 (COVID-19). The proposed epidemic prediction methods range from basic curve fitting methods and traffic interaction models to machine-learning approaches. If we combine all these approaches, we obtain the Network Inference-based Prediction Algorithm (NIPA). In this paper, we analyse a diverse set of COVID-19 forecast algorithms, including several modifications of NIPA. Among the algorithms that we evaluated, the original NIPA performed best at forecasting the spread of COVID-19 in Hubei, China and in the Netherlands. In particular, we show that network-based forecasting is superior to any other forecasting algorithm.     

基于频率响应屏蔽技术的采样率变换新结构

介绍了频率响应屏蔽(FRM)技术在采样率变换技术中的应用,分析了FRM的简化结构——内插滤波器的设计方法。将此滤波器应用于采样率变换中,并结合多相滤波思想提出了一种高效的FRM采样率变换结构,此结构能极大降低采样率变换实现复杂度。最后通过设计实例,验证了此结构的高效性。     

物流软件公司与高校物流人才培养互动发展浅析

针对目前物流软件公司与高校专注于各自的领域，彼此之间缺少联系，或者即使有联系，在合作的深度与广度上也远远不够的情况，通过对双方合作共赢的分析，提出了高校物流人才培养与软件公司互动发展的新思路。     

Does technological modularity substitute for control? A study of alliance performance in software outsourcing

Although control is presumed to be necessary to curb opportunism, its implementation in alliances can be costly and challenging. Paradoxically, some contemporary firms have counterintuitively developed successful alliances without extensive formal control. A widespread but untested assertion that might help reconcile this contradiction is that technological modularity reduces the need for alliance control. The objective of this study is to develop and test this assertion. Using data from 120 software outsourcing alliances, we show that, process control, outcome control, and modularity independently enhance alliance performance. However modularity and control are imperfect substitutes: modularity lowers the influence of process control but not of outcome control on alliance performance. Our theoretical development and empirical testing of the interactions of alliance control with modularity has significant implications for strategy theory and practice, which are also discussed. Copyright © 2008 John Wiley & Sons, Ltd.