海洋石油开发工业污染物产生系数和排放系数研究

污染物产生系数和排放系数是工程环境影响评价的重要指标,但对于海洋石油开发工程环境影响评价来说,迄今尚无具权威性的系数可资使用。在我国近海石油开发工程污染源系统调查的基础上,对海洋石油开发行业污染物产生系数和排放系数的定义、计算方法、应用范围及应用方式进行了探讨,研究结果可为海洋石油开发工程项目环境影响评价及环境保护管理,以及行业或企业有关标准的制定提供参考。     

挤扩支盘桩在福建省防震减灾中心大楼的应用

结合工程实例阐述挤扩支盘桩施工质量控制和技术措施,对施工过程出现的异常情况提出对策,为类似工程提供借鉴。     

混凝土U形渠道施工

混凝土U形渠施工的主要工序为施工前准备、U形渠施工、混凝土养护、伸缩缝填料、渠堤清理、边坡整修等。要严格控制各工序施工质量，确保U形渠施工质量，使U形渠发挥正常的效益。     

UV-LIGA深度光刻机平滑衍射技术研究

UV-LIGA深度光刻技术是加工微型机电系统的一项重要的微细加工技术。介绍了一种平滑衍射效应的位错强度叠加原理，它采用了蝇眼积分透镜去平滑衍射，并模拟数值计算了硅片表面的光强分布，最后给出了光刻结果。     

企业生产经营全过程作业管理的理论研究

讨论了现代企业的过程观经及企业过程的构成，提出了企业生产经营全过程的作业管理思想，并对全过程作业管理的基本内容进行了探讨，分析了企业过程重组和优化的驱动因素、目标和实现途径，最后概述了全过程作业管理的支撑技术。     

浅谈贵州中水公司人力资源培训与开发

文章结合水利水电行业的建设特点，着重介绍在项目管理技术日益成熟的今天如何开展水利水电项目管理人力资源的培训与开发工作。作为项目管理活动中至关重要的一个环节，人力资源培训与开发起到了及时为项目输送合适的人才，在项目管理过程中不断提高员工素质和适应力，全力推动项目进展等作用。     

A New Modified Gaussian Approximation Detector for Space-Time Bit-Interleaved Coded Modulation Schemes

To reduce the receiver complexity of the space-time bit-interleaved coded modulation (ST-BICM) scheme, this letter describes a turbo-type iterative structure consisting of a modified Gaussian approximation (MGA) detector and an a posteriori probability (APP) decoder. Utilizing the characteristics of the interleaving and the central limited theoretic, the MGA detector first assumes the superposition of the transmitted signals as a Gaussian random variable. Then, P most significant signal combinations are identified to calculate the log-likelihood ratio of each bit. Without any pre-process on the received signals, the proposed method is free of matrix inverse operation and can be applied in systems with more transmit antennas than receive antennas. Furthermore, the performance of the MGA approaches that of the optimal detection     

ABB变频器在双馈发电机试验台上的应用

本文介绍了风力发电系统目前存在的技术方案，重点介绍了ABB用于双馈式风力发电系统的变频产品ACS800—67的特性，并对由其构建的发电机测试平台的案例进行了实验分析。     

Transient performance study of a brushless doubly fed twin stator induction generator

This paper presents theoretical, simulation, and experimental study of the brushless doubly fed twin stator induction generator (BDFTSIG) dynamics under vector control based on the orientation on the power machine stator flux. A complex transfer function is derived which links the control current and power winding current space vectors in the field coordinates. Based on this result, the transient response of the BDFTSIG to step changes in the control current is examined theoretically. The oscillatory transients are explained in detail and linked to control flux transients triggered whenever operation point of the generator is changed. Furthermore, BDFTSIG operation with closed loop control of the power machine active and reactive powers is examined theoretically and experimentally. It is shown that in the closed loop operation, the system damping may be reduced so that the PI controller gains must be properly selected to achieve a good transient response.