水库水面蒸发量计算方法的研究

根据水库水面蒸发机制，结合前人研究成果，提出一种新的水库水面蒸发量计算模型，利用不同气候区多站资料确定模型参数，并利用全国各地30多个水库漂浮蒸发站实验资料，对模型进行拟合检验与移用检验，结果表明，该模型的适应性很强，有推广前景。对模型特性较深入的分析说明，该模型较过去常用的几种模型有许多更合理之处。     

风电场风能资源评估几个关键问题分析

正确科学地对风资源进行评估,意义重大。针对我国风电场工程可行性研究报告的现状和GB/T 18709—2002《风电场风能资源测量方法》、GB/T 18710—2002《风电场风能资源评估方法》、《全国风能资源评价技术规定》等的某些条款进行了阐述,指出目前风资源评估中存在的一些问题并提出了一些建议,希望为以后的相关工作人员提供一个参考。     

基于三维浅水模式的太湖水动力数值试验-盛行风作用下的太湖流场特征

基于三维浅水动力模式，对太湖不同定常风作用下的整层平均流场和分层流场特征做了模拟，结果发现在无旋风场的情况下，可产生有旋流场。经分析发现，有旋流场为湖底地形变化所致，若在均匀平坦的湖底地形情况下，流场中除边界以外任一点的涡度为零。在方向相反的不同定常风作用下，其环流形势相似，环流个数相等，但涡度值呈现反位相特征。数值试验表明，在定常风作用下，太湖表层流完全为风生流，流向与风向平行，中间为过渡层，底层流向相反，为补偿流，在增水区域，下沉运动强烈，而减水区域则出现较强的上升补偿流，形成封闭环流。     

The ECFA and its expected effect on cross-strait trade and investment: a Taiwanese perspective

To come to terms with the realization of ASEAN+1, Taiwan had concluded with mainland China a special free trade agreement (FTA), the Economic Cooperation Framework Agreement (ECFA) in June 2010. This framework agreement provides an early harvest agreement of near-term tariff elimination, including detailed product schedules for goods and services from each side, with the final shape of fuller trade liberalization in goods and services taking years to negotiate and realize. The conclusion of the ECFA has been considered as a major breakthrough in cross-strait talks and economic relationships, even though it is by no means free from controversies inside Taiwan. The authors are therefore motivated by hot debates in Taiwan to reflect on the expected trade effect of the ECFA by taking into account the factor of cross-strait global production networks. In particular, we examine with a proposed model and statistical robustness, the trend of Taiwan-based firms' localization in mainland China, driven in part by constant movements in global production networks, which generates complicated and dynamic relationships between Taiwan's investment-induced trade and structural shift in Taiwan's exports to mainland China. Based on our empirical findings, we reflect on the conventional views on the trade effect of the free trade agreement. The results of our analyses tend to support a cautious view about the trade effect of the ECFA. Without denying the significance of the ECFA and deepening cross-strait economic relationships, we argue that the impact of the ECFA should be interpreted in a wider context than just the trade perspective, as the conventional wisdom and the existing evaluations suggested.     

矿用风速表示值误差的测量不确定度评定

通过矿用风速表检定装置对风速表示值误差进行不确定度评定。     

用AUTOLISP实现分马力电机可变尺寸图形的绘制

AUTO LISP 是嵌套在 AUTO CAD 绘图软件包中的一种功能很强的智能语言,可在绘图软件包环境下直接运行,是一种很适合绘制“可变尺寸图形”的方法。本文详细地研究了 AUTO LISP 源程序编制、在系统状态下编辑程序和在 HCAD 状态下绘图等内容。对 AUTO CAD 的开发应用具有重要作用。     

风力发电在中国电力可持续发展中的作用

可持续发展是全球发展的共同目标,风能作为一种清洁的可再生能源,必将成为21世纪的重要能源之一。本文从风能的特性、中国风能资源的储量及分布、风力发电开发现状及前景等方面,对风力发电在中国电力可持续发展中的作用进行了详细的分析,并对中国风力发电的发展提出了一些建议。     

Raising the Reliability of Overhead Transmission Lines under the Action of Atmospheric Loads

Problems of reliability of overhead transmission lines (OTL) under the action of atmospheric loads are considered. It is assumed that the integral distribution function of, for example, ice loads, obtained from data of weather stations is a random statistical function that characterizes the frequency of an event (specific ice load) at a point (weather station area). The general population of statistical data is the most reliable base for analysis. Since the atmospheric loads are distributed in space and act on spatially distributed OTL systems, it is recommended to evaluate the proof load and the yearly reliability of OTL in terms of one integral statistical function composed of annual load maxima measured by weather stations located closest to the annual extremum of the ice load on a territory possessing common features (flat-bottom land, low land, elevation) that range within no more than 150 m with respect to the altitude. It is suggested that the Methodological Recommendations on Zoning of Atmospheric Loads on OTL Systems should be updated with allowance for the obtained data.     

高湿度高山风电场调研及设计特点分析

笔者通过对高湿度高山风力发电场、电力电缆生产厂家的走访、调研,结合规程规范对风电场接线设计、电缆集电线路选型、敷设工艺要求、运行维护注意点等事项进行了充分有效的沟通、交流并进行经验总结。     

航空摄影测量新方法在风电场大比例尺成图中的应用

针对传统航测成图方法的作业效率难以满足工程项目现实性需求的这一现状,文章通过对传统航空摄影测量成图的生产流程分析找寻改进空间,分别借助电子刺点作业模式、立体采集的规范化管理、基于AutoCAD Lisp的符号转码归层程序批量处理,对3个关键环节进行了技术改进,提高了成图效率。