我国软件产业链:国际借鉴、存在问题与培育对策

本文从价值创造和产品结构两个方面论述了软件产业链，分析了美国、英国、印度、爱尔兰等国家在培育软件产业链方面的成功经验，从研发投入、风险投资、信息化的需求、企业组织结构、发展战略等方面，指出了中国软件产业链存在的突出问题，并提出了培育中国拥有核心竞争力的软件产业链的对策建议。     

基于CFX的典型差压式流量计流场数值模拟研究

基于CFX商业软件,对典型差压式流量计的内部流场进行数值模拟研究。详细研究了关于孔板流量计及V锥流量计的流出系数影响因素,得到了不同模拟工况下的内部流场变化规律。将数值模拟与经验公式计算值进行对比验证,两者吻合度高,误差基本控制在5%以内。借助CFX数值模拟进行孔板、V锥流量计的压降及耗能定量分析,结果表明V锥流量计具有明显的节能效果,同时探讨了孔板流量计的沉积、冲蚀问题。研究表明数值模拟可作为一种差压式流量计设计及标定的辅助方法。     

A six-stage model of the buying process for ERP software

This paper presents a model of the Enterprise Resource Planning (ERP) software acquisition process that reflects the findings from the four cases examined in this study. This ERP acquisition process model includes six distinctive, yet interrelated, processes (planning, information search, selection, evaluation, choice, and negotiations). This paper depicts the principal processes and many of the constituent activities, issues, dynamics, and complexities that pertain to the acquisition of ERP software. The results from this study contribute to the identification of processes that are part of this type of acquisition. Further, this model also suggests complexities that are worthy of further investigation, in and of themselves, if for no other reason than that they could prove the limit of generalizability of the model.     

Virtual Machine软件在火力发电厂控制系统及课件培训中的应用

论文就Virtual Machine软件在火力发电厂Windows XP控制系统中应用遇到的问题进行了论述,并针对问题提出了相应的措施及方案,以期为Virtual Machine软件在更多领域中应用提供参考资料。     

图像边缘检测算法的应用研究

图像边缘检测是图像处理中非常重要的基础,边缘检测直接影响图像分割的好坏,因此,要对某个图像进行分析和研究,首先要从边缘检测开始。论文主要研究了边缘检测的基本原理,并针对Canny算子给出了改进的方法,同时研究了不同的阈值对Canny算子的影响,并用MATLAB进行仿真,最后对得到的结果进行分析比较。     

Managing critical success factors for IS implementation: A stakeholder engagement and control perspective

Enterprise information systems (IS) implementation is often part of an organization's strategic IT initiatives and requires a large investment of organizational resources, yet may fail due to inadequate management of critical success factors (CSF). Using a revelatory case study of a multi‐partner COTS implementation process by a large Canadian government organization, this research investigates successful management of CSF through optimal stakeholder engagement and a balancing of control configurations. This research identifies four distinct project orientations related to stakeholder engagements—strategic, responsibility, harmony, and persuasion—that can be of significant value in managing CSF and other challenges during implementation and post‐implementation phases. In addition to the identification of a need for control balancing in a multi‐partner IS implementation, three key drivers responsible for triggering control balancing are identified: (a) shared understanding, (b) negative anticipation, and (c) deviation of expectations. Copyright © 2017 ASAC. Published by John Wiley & Sons, Ltd.     

Vissim交通仿真软件在地铁施工交通影响分析中的应用

地铁施工对周边交通产生了极大的影响,以广州6号线长湴地铁站为例,在交通流量数据调查的基础上,利用Vissim交通仿真软件建模交通仿真模型,分析地铁施工对周边交通影响的情况,提出缓解交通拥堵的改善方案,并为后续地铁施工制定交通组织方案提供参考。仿真结果表明:改善方案使得长湴地铁站周边交通的车辆延误时间降低18.7%,停车次数降低26.2%,行程时间减少4.8%。     

基于MATLAB的直流调速数字控制系统的分析和设计

直流调速系统的数字化控制已得到广泛应用。文中简单介绍了直流调速系统数字控制的特点和直流调速系统模型的建立,重点介绍了数字PI控制器和利用Z域根轨迹的设计方法,以及用MATLAB进行了设计过程的仿真和稳定性、动态特性的分析。     

建设监理投资控制程序开发的探索与实践

介绍了目前投资控制程序开发的现状,以投资控制程序应具有的功能为基础,探索了用Excel编制分项投资控制程序和用Microsoft C编制工程款支付管理程序,并进行了实践应用。