水利对粮食生产贡献率的认识与思考

针对目前很多人对农业科技进步贡献率和水利对粮食生产贡献率的不同认识,从发展历程、概念内涵、测算思路方法等方面,剖析了二者差异,认为二者在测算范围上存在大口径与小口径的差异,在测算对象上存在增量与总量的差异,在测算指标上存在产值与产量的差异,在测算方法上存在余值法与有无对比法的差异,为正确认识这两个指标提供了参考。     

小流域设计洪水计算方法的探讨

利用实例对各常用设计洪水流量计算方法进行比较分析,指出各方法的特点。     

水利工程设计概算编制中的主要问题及对策

水利工程概算编制是工程设计的重要组成部分,对于合理确定工程造价预算、确保有效控制工程项目投资规模、合理使用投资、提高投资回报率,是必不可少的.本文简要归纳了一些普遍存在于水利工程设计概算编制中的问题,并结合工程实际提出了几项应对措施,以期提升设计概算编制的质量、保证项目投资控制目标的实现,从而取得较好的投资效益和社会效益.     

黄河上中游流域泥沙优化配置研究

针对流域水土流失的灾害性、泥沙利用现状及泥沙优化配置的必要性,基于大系统分解-协调思想的流域泥沙优化配置原理与流域各子系统的泥沙多目标优化配置方法,构建了流域泥沙优化配置理论框架。进而建立了黄河上中游流域泥沙优化配置数学模型,该模型包括相互联系的各子系统、各分区和大系统三级泥沙优化配置数学模型,开展了不同水沙条件的黄河上中游流域泥沙优化配置方案计算,对计算结果进行了评价并提出了建议方案,为黄河上中游流域泥沙的科学治理提供了参考依据。     

浅谈新疆某水库闸门集中控制系统

新疆某水库泄洪闸门集控系统是以美国Wonderware公司的Intouch 10.1系统监控软件为开发平台所建立的一套集远程监控和远程操作为一体的闸门控制系统。该系统上位机通过局域网与各闸门控制系统的PLC进行通讯,包括上送各种信息和接受控制命令,通讯采用标准以太网,支持TCP/IP协议,系统建立于2011年6月,经过1年多的操作运行,情况良好。     

乐平市城乡供水一体化的调查与思考

本文在调查研究的基础上,总结了江西省乐平市城乡供水一体化工程建设的主要做法、成效和特点,并提出了几点思考.     

马克思主义精神在中央苏区时期的坚持和发展

中央苏区时期,中国共产党人树立了坚定的革命理想信仰,始终不渝地遵循马克思主义基本原则,这是革命精神的体现;在马克思主义科学世界观和方法论的指导下,不断地认识事物的本质,把握事物的规律,完整准确地理解马克思主义,这是批判精神的体现;研究和讨论完成苏区工作的具体办法,把马克思主义与苏区实际相结合,开展了轰轰烈烈的苏区建设运动,这是实践精神的体现;苏区干部为了发展的需要,运用马克思主义基本理论,不断突破常规,解决新问题,灵活地运用和发展马克思主义,这是创新精神和开放精神的体现。     

Marketing versus public relations in selling nuclear power

All too often, the terminology and practices of public relations are used when marketing is what is really needed. This misapplication appears most often when a concept, an idea, or an intangible product is involved. Webster defines public relations as: relations with the general public through publicity; those functions of a corporation, organization, branch of military service, etc., concerned with informing the public of its activities, policies, etc., and attempting to create favorable public opinion.This definition implies a general, ongoing effort to supply information supporting the image of an organization. There is, however, a considerable difference between this kind of activity and the specific, overt process of marketing. This difference has been particularly apparent in attempts of public utilities to “sell” nuclear power plants. Utilities, of course, are monopoly suppliers and, as such, must seek a favorable image in the community. Thus, when public opposition to nuclear power plants mounted, many utilities responded with stepped-up public relations programs; the method they knew best. This article examines the experience of several utilities in locating nuclear plants and suggests how marketing techniques might be used in selling this intangible product.     

SZJ-1三轴智能校验台标准装置测量不确定度的评定方法

简要介绍了建立SZJ-1三轴智能校验台标准装置的必要性及原理框图。详细论述了其测量不确定度的评定方法。并对标准装置的测量不确定度进行了验证。     

The Role of Omitted Variables in Identifying a Long-run Equilibrium Relationship for the Italian Government Growth

We discuss the role of omitted variables in the long run empirical modeling of the Italian government growth based on a Wagner's Law framework. We identify a non-spurious long-run relationship between general government expenditure and domestic product only when our Wagner's Law model is enhanced by a measure of bureaucratic power, as a supply-side variable, and by the ratio of local to state expenditure, as an institutional factor that captures the division of competencies between local and central government in allocating public expenditure. This result is independent from the Wagner's Law specification chosen. The persistence profile analysis shows a slow adjustment to equilibrium for the estimated government growth relationship following system-wide shocks, pointing to rigidities and complex functioning of the public sector.