工业生产的自动监控系统设计

为了掌握化工等环境苛刻的系统的运行情况并且加以控制,自动监控系统是必须的。该文在硬件方面,以PIC18F458单片机为核心的嵌入式系统为例给出了一般的硬件构架。该结构在充分利用片上资源的基础上,充分考虑了系统的扩展以及远程监控;在软件方面,为了满足测量要求,提高测量精度,采用了软测量的方法。文中介绍了软测量的建模方法,并以神经网络为例给出了数据建模方法。     

The role of program fairness in asymmetrical channel relationships

Managing distributor compliance with manufacturer-initiated programs is critical to both program success and relationship enhancement. This study examines how a manufacturer might better motivate distributors with varying levels of dependence. Previous research suggests that two variables influence distributor compliance: economic incentives and dependence dynamics. Drawing from fairness heuristic theory, this study extends previous research by investigating the role of fairness in affecting compliance and long-term relationships. The authors observe the contingent effect of fairness along various levels of distributor dependence. In the context of a naturally occurring program, the authors collect data from a focal manufacturer's distribution channel and find that (1) fairness perceptions have significant impacts on both compliance and relational outcomes, (2) the efficacy of program fairness declines as distributor dependence increases, and (3) distributor dependence increases the effect of economic incentives on compliance. The authors discuss the theoretical and managerial implications of these findings.     

Cooperative goals and team performance: Examining the effects of advice network

Based on the theory of cooperation and competition, this study examines the relationships between cooperative goals, advice network, and team performance, and their boundary conditions. Based on multi-source data from 189 teams in a military organization, results indicate that cooperative goals positively influence team performance via advice network density. Moreover, advice network centralization moderates the relationship between advice network density and team performance. In addition, advice network centralization moderates the indirect effect of cooperative goals on team performance via advice network density.     

评价石油装备安全可靠性的一种新方法

为了能较全面、准确、高效地评价石油装备的安全可靠性，开展石油装备的运行可靠性研究和状态监测、故障诊断的研究工作，并将这两项研究工作有机地结合起来是十分必要的。方法的要点是：利用设备运行和大修的历史记录，研究设备的运行可靠性；选择合适的监测与诊断参数，建立数据库进行积累，了解故障的发生、发展趋势，进行定性和定量分析，用可靠性理论和方法研究故障发展的规律，探讨故障产生的原因，故障发展的速率，进而预测设备工作寿命。最后结合钻井泵研究的实际，探讨了此项方法的可行性。     

国内外三聚氰胺生产技术及市场动态

论述了国内外三聚氰胺的市场消费,需求,生产技术及最新发展动态。并对其经济技术进行了评析,指出了国内生产三聚氰胺的发展前景。     

国外油公司浅层气钻井整体解决方案介绍

浅层气钻井作业属于高风险的高危作业,为了预防浅层气井喷,世界上很多国家的石油公司都制定了有关浅层气钻井的强制标准和作业指导。介绍了国外油公司对浅层气钻井的应对措施和整体解决方案要点,内容涉及浅层气钻井策略要点、风险评估、设计要求、施工措施等方面。     

OBD技术与环保

介绍车载自诊断系统(OBD)技术的发展、工作原理,及其在汽车排放检测中的环保作用。     

稠油油田生产经营特性及产量与成本相关关系分析

稠油油田流体性质特殊,开采工艺复杂,成本高,开发后期成本增速加快。通过构建稠油油田产量—成本的回归分析模型,经数据抽样,测算其相关系数,进而检验了稠油油田产量—成本之间的内在逻辑关系。稠油油田的产量与成本之间呈非线性关系,稠油油田的成本结构中既含有固定成本又包括变动成本,新井产量、老井自然产量与老井措施产量所对应的单位操作成本逐次升高;老井措施成本占油田生产成本的比重较大,是今后加强管控的主要方向。通过产量—成本相关关系分析,掌握稠油油田在不同开发阶段的生产经营规律,有助于了解在油田现有生产能力下产量规模所对应的成本水平,从而合理确定配产规模与产量结构,提升开发效益。     

Government Supply of Land in a Dual Market

A dual land market is one in which the government owns a significant portion of developable land while real estate development is done primarily by the private sector. This article examines Singapore's experience with its system of government land supply in a dual market, focusing on its response to market signals as well as the interaction with the significant private supply of land. The example is relevant to the general problem of government sales of valuable assets. The private supply of developable land behaves in line with expectations. The government response to price signals differs only modestly from that of private landowners.     

可持续发展视角下江苏能源需求情景预测

文章运用IPAT方程和指数分解的方法分析了江苏省2000—2007年的能源消耗及能源消费强度状况;根据江苏能源需求的历史发展趋势、小康社会指标以及发达国家能源利用状况分情景预测了江苏未来能源利用效率及能源需求总量。文章针对实现小康社会目标的各种情景,分析了经济结构对能源需求和能源强度的影响并提出政策建议。