我国环保产业研究与发展的探讨

在总结我国环保产业研究与发展现状的基础上 ,指出我国环保产业的发展必须得到理论研究的指导 ,并对有关问题进行了深入地探讨。根据我国加入WTO后的环保产业现状 ,预测、分析了将在我国环保产业形成投资热点的几个领域     

高等教育投资项目社会评价指标体系的分析与构建

我国高等教育的高速发展对高等教育投资主体和资金来源多元化提出了新的要求。如何对高等教育投资项目的经济和社会效益进行合理评价 ,这既是各投资主体关注的重点 ,也是高等院校如何加快高等教育建设步伐的核心问题。由于高等教育所具有的特殊性 ,目前 ,我国对高等教育投资项目的效益问题研究甚少 ,而高等教育投资项目的社会评价问题更是刚刚起步。本文在深入研究教育经济学及建设项目评价相关知识的基础上 ,总结了高等教育投资项目社会评价的基本特点 ,进而构建了高等教育投资项目社会评价指标体系。这对建立和完善高等教育投资项目评价理论 ,正确进行高等教育投资决策奠定了坚实的基础。     

橡胶密炼机混炼工艺瞬时功率控制法

橡胶密炼机混炼工艺瞬时功率控制法的理论由３部分组成：橡胶混炼过程的机理、密炼机流理论和混炼过程功率曲线与能量控制法不同，瞬时功率控制法实质上是控制混炼过程中胶料的粘度，确保混炼工艺过程保持最佳状态。因而瞬时功能控制法可监控生产过程，为密炼机混炼工艺的智能控制奠定了基础。     

Visualising a knowledge mapping of information systems investment evaluation

Information systems (IS) facilitate organisations to increase responsiveness and reduce the costs of their supply chain. This paper seeks to make a contribution through exploring and visualising knowledge mapping from the perspective of IS investment evaluation. The evaluation of IS is regarded as a challenging and complex process, which becomes even more difficult with the increased complexity of IS. The intricacy of IS evaluation, however, is due to numerous interrelated factors (e.g. costs, benefits and risks) that have human or organisational dimensions. With this in mind, there appears to be an increasing need to assess investment decision-making processes, to better understand the often far-reaching implications associated with technology adoption and interrelated knowledge components (KC). Through the identification and extrapolation of key learning issues from the literature and empirical findings, organisations can better improve their business processes and thereby their effectiveness and efficiency, while preventing others from making costly oversights that may not necessarily be only financial. In seeking to enlighten the often obscure evaluation of IS investments, this paper attempts to inductively emphasise the dissemination of knowledge and learning through the application of a fuzzy Expert System (ES) based knowledge mapping technique (i.e. Fuzzy Cognitive Map [FCM]). The rationale for exploring knowledge and IS investment evaluation is that a knowledge map will materialise for others to exploit during their specific technology evaluation. This is realised through conceptualising the explicit and tacit investment drivers. Among the several findings drawn from this research, the key resulting knowledge mapping through FCM demonstrated the complex, multifaceted and emergent behaviour of causal relationships within the knowledge area. The principal relationships and knowledge within IS investment evaluation are illustrated as being determined by a blend of managerial and user perspectives.     

水利血防工程中生态抑螺护岸设计与应用初探

传统的水利血防工程采用硬质护岸形式,极大程度地影响了河道生物多样性。依托某水利血防工程,在对河道附近水位站潮位资料统计排频的基础上,给出了常规硬质护岸的设计方案。结合植物抑螺理念,设计出一种生态型的抑螺护岸。并将不同抑螺植物组合设置成三个生态抑螺护岸试验段。通过现场调查比较,硬质护岸和生态抑螺护岸都能起到灭螺效果,相对于硬质护岸河流景观单一化,生态抑螺护岸更贴近自然,三个生态护岸试验区中,以密毛酸模叶蓼为挺水植物,以益母草为草本植物的实验段植物存活率更高。     

尿素DCS系统优化与完善

通过对尿素DCS系统几个控制回路的改造，达到了优化工艺指标、完善工艺条件、节能降耗的目的，保证了尿素系统的安全、稳定、长周期运行。     

对投资子午胎产业热潮的思考

面对80亿元人民币投资我国子午胎产业的热潮，冷静解剖轮胎产业和市场，按照经济结构分析企业发展趋势，预测子午胎企业2003年市场需求和近几年发展总趋势。提出构筑子午胎企业竞争优势的战略大框架，建议组建国家级联合舰队，提升我国子午胎行业的国际竞争力，规避市场风险。     

跨国化工企业在我国的投资现状

由于市场、人力资源及成本的优势,跨过公司在我国的投资不断增加,我国已成为全球研发投资项目的最大积聚地。介绍了近几年跨国化工企业在我国投资的项目情况,新一轮的投资主要集中在长江三角洲地区。随着众多跨国公司的签约,催生了南京化学工业园区、上海化学工业区、泉州泉港石化工业区,惠州大亚湾石油化学工业区,同时也将一体化基地的理念带入中国。     

基于MPLS的VPN互访技术

针对VPN互访问题,根据IPSec-VPN互访方法的不足,提出动态MPLS-VPN方法.利用随机分配的标签,在需要互访的不同VPN网络节点之间构建MPLS通道,利用互访规则集检验节点的连接申请,根据过滤规则控制数据包的传输,通过设定传输时长限制节点互访的时间,实现VPN之间接节点、按方向、按时间的细粒度互访控制,确保数据传输的安全性和高效性.给出动态MPLS-VPN方法实现互访的步骤,对方法进行分析比较.     

风险型多指标决策分析方法研究

根据风险型多指标决策问题的特点,利用确定型多指标决策和单目标风险型决策理论,提出了三种风险型多指标决策分析方法,并以实例验证.