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[Technology Management] mianxiang21 DL : 0: 回顾一个多世纪以来电力工业和电力系统的发展，深感由于经济发展和技术进步带来的巨大变化。上世纪的80～90年代，是电力系统的初创时期。据记载，1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性，人们转而研究交流输电技术，并在上一个世纪之交，确立了交流输电系统进一步发展和应用的基本取向，从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末，最高交流输电电压从12.44千伏和60千伏提高到735千伏和765千伏。在此期间，电力系统规模也迅速扩大，电网互联程度不断加强。在交流输电和电力系统大发展的同时，从50年代开始，又发展了高压直流输电技术，奠定了当今高压交/直流电力系统的基础。今天，又是一个世纪之交。面对经济全球化趋势和科技迅猛发展的形势，有100多年历史的“古老”电力系统，在其发展的进程中，又将面临一系列新的挑战。 -recalled more than a century since the power industry and the development of electric power system, deeply as economic development and technical progress brought about by the tremendous changes. On the 80-century 1990s, the power system is the initial stage. According to the records, in 1882 in New York, the United States built the world's first complete power system. This is a generator, cables and load consisting of DC power systems. However, as the DC transmission system limitations, it was switched to AC transmission technology, and in a turn of the century, established the AC transmission system to further the development and application of the basic orientation, hence the exchange of this century, the high voltage electricity transmission system and the large-scale development. F
Date : 2008-10-13 Size : 21.12kb User : 111
[Technology Management] mianxiang21 DL : 0: 回顾一个多世纪以来电力工业和电力系统的发展，深感由于经济发展和技术进步带来的巨大变化。上世纪的80～90年代，是电力系统的初创时期。据记载，1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性，人们转而研究交流输电技术，并在上一个世纪之交，确立了交流输电系统进一步发展和应用的基本取向，从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末，最高交流输电电压从12.44千伏和60千伏提高到735千伏和765千伏。在此期间，电力系统规模也迅速扩大，电网互联程度不断加强。在交流输电和电力系统大发展的同时，从50年代开始，又发展了高压直流输电技术，奠定了当今高压交/直流电力系统的基础。今天，又是一个世纪之交。面对经济全球化趋势和科技迅猛发展的形势，有100多年历史的“古老”电力系统，在其发展的进程中，又将面临一系列新的挑战。 -recalled more than a century since the power industry and the development of electric power system, deeply as economic development and technical progress brought about by the tremendous changes. On the 80-century 1990s, the power system is the initial stage. According to the records, in 1882 in New York, the United States built the world's first complete power system. This is a generator, cables and load consisting of DC power systems. However, as the DC transmission system limitations, it was switched to AC transmission technology, and in a turn of the century, established the AC transmission system to further the development and application of the basic orientation, hence the exchange of this century, the high voltage electricity transmission system and the large-scale development. F
Date : 2025-12-19 Size : 21kb User : 111
[Technology Management] vc++source DL : 0: 文档里面包含五个系统代码。分别为1.公司人员管理系统；2.新科库存管理系统；3.高校学籍管理系统；4.高校工资管理系统；5.高校人事管理系统。 PS：希望能通过审核，加入这个大家庭，与大家共同学习进步！-Document which contains the five system code. 1, respectively. Company personnel management system 2. New inventory management system 3. College student management system 4. College wage management system 5. Colleges and Universities Personnel Management System. PS: hope that through the audit, to join the family, with everyone together to learn and progress!
Date : 2025-12-19 Size : 36kb User : 老庄
[Technology Management] weifendianlu DL : 0: 微分电路,共同学习共同进步！ -Differential circuit, the common progress of learning!
Date : 2025-12-19 Size : 17kb User : 仝景
[Technology Management] Cstudy1.0 DL : 0: 学习的好地方，交流的好乐园。希望大家多多交流，共同进步。-A good place to learn, exchange of good park. I hope a lot of U.S. exchanges, and common progress.
Date : 2025-12-19 Size : 312kb User : 主席
[Technology Management] nonlinear_robust_system DL : 0: 非线性系统鲁棒控制理论的一些新进展_分析比较透彻-Robust control of nonlinear systems theory, some new progress _ a thorough analysis and comparison
Date : 2025-12-19 Size : 184kb User : 章必成
[Technology Management] SoftwareProjectTracking DL : 0: The purpose of Software Project Tracking and Oversight is to provide adequate visibility into actual progress so that management can take effective actions when the project s performance deviates significantly from the plans.
Date : 2025-12-19 Size : 43kb User : aaaggg
[Technology Management] 21840255YM12864R DL : 0: 是一个YM12864R液晶的中文手册，可供使用液晶的同行参考使用。共同进步。-YM12864R LCD is a Chinese manual, the availability of peer-LCD use and reference. Progress together.
Date : 2025-12-19 Size : 2kb User : liwei
[Technology Management] R-Tree-SpatialIndex DL : 0: R-Tree空间索引算法的研究历程和最新进展，挺详细的-R-Tree spatial index algorithm and the latest progress of the course, very detailed
Date : 2025-12-19 Size : 45kb User : lyd
[Technology Management] EarnedValueForAgileProjects DL : 0: 挣值管理（EVM）是项目管理方式的技术进步的客观衡量项目绩效和 EVM的有能力结合在一个单一的集成系统，范围，进度和成本的测量。挣值管理是它能够提供准确的预测项目绩效显着的问题。EVM的研究表明，早期的规划和控制的地区有显着影响其使用，并同样地，使用该方法提高了两个范围的定义，以及对整个项目的执行分析。-Earned value management ( EVM ) is a project management technique for measuring project performance and progress in an objective manner. EVM has the ability to combine measurements of scope, schedule, and cost in a single integrated system.Earned Value Management is notable for its ability to provide accurate forecasts of project performance problems.Early EVM research showed that the areas of planning and control are significantly impacted by its use and similarly, using the methodology improves both scope definition as well as the analysis of overall project performance.
Date : 2025-12-19 Size : 260kb User : Mr_Ning
[Technology Management] Progress-Management-Linux DL : 0: Linux进程管理包含用户进程的创建与调度执行、父进程等待子进程的同步、进程通信等等。 -Linux process management includes the creation of the user process and schedule execution, the parent process waits for the child process synchronization, process communication.
Date : 2025-12-19 Size : 386kb User : 张玉
[Technology Management] problem-of--path-is-too-long DL : 0: 解决在使用MyEclipse建工程是出现的文件夹路径过长问题，里面有使用说明和必备的东西。-Address the use MyEclipse construction in progress is the folder path is too long, there are instructions for use and necessary things.
Date : 2025-12-19 Size : 125kb User : xue
[Technology Management] android1 DL : 0: 实现android上传时显示进度，解释清晰明了，初学者的最爱-Show progress when uploading achieve android, explaining clarity, beginners favorite
Date : 2025-12-19 Size : 54kb User : 随缘
[Technology Management] vote100 DL : 0: 这是一款非常好用的软件可以帮助学习与进步，并且好用-This is a very easy to use software can help you learn and progress, and easy to use
Date : 2025-12-19 Size : 260kb User : cc
[Technology Management] P2Pliuliang DL : 0: P2P流量的迅猛增长加剧了网络拥塞状况,P2P流量识别为网络管理提供了基本的技术支持.首先介绍了P2P流量的类别及流量识别面临的主要困难,然后综述了P2P流量识别的主要技术及研究进展,最后给出下一步的主要研究方向. 更多还原. -Exacerbated by the rapid growth of P2P network traffic congestion, P2P traffic identification of network management provides the basic technical support. Introduces the major categories and flow difficulties faced by P2P traffic identification, then summarizes the main technical and research of P2P traffic identification progress Finally, the next major research directions. more reduction
Date : 2025-12-19 Size : 847kb User : 唐琴
[Technology Management] Smart-Grid DL : 0: 首先介绍了智能电网的概念和功能特点,详细分析了国内外智能电网的研究进展,对重点关键技术与智能电网的关系进行了分析和讨论,指出基于Agent的分布式协调、控制、仿真与决策技术,分布式能源的系统集成以及基于知识的综合决策支持是未来智能电网技术发展的重要方向。-Introduces the concept and features of the smart grid, detailed analysis of the research progress of the smart grid, a key focus on the relationship between technology and the smart grid are analyzed and discussed, pointing out Agent-based distributed coordination, control, simulation and decision making technology, distributed energy systems integration and knowledge-based integrated decision support is an important direction for future smart grid technology development.
Date : 2025-12-19 Size : 546kb User : 杰
[Technology Management] Microgrid DL : 0: 首先,介绍了从分布式发电到微电网的发展历程,通过一个典型的微电网结构对微电网的概念和特点进行了详细阐释。其次,总结了微电网在一些发达国家的发展概况和研究进展,并提炼出现阶段微电网研究中的关键问题和相关研究现状。最后,结合中国的能源战略和电力发展现状,对微电网在中国的发展潜力和应用形式进行了探讨。-First introduced to the micro-grid distributed generation from the development process, through a typical micro-grid structure and characteristics of the micro-grid concept has been explained in detail. Secondly, micro-grid overview summarizes the research progress and development in some developed countries, and refining key questions arise related research status and stage of microgrid research. Finally, energy development strategy and the status quo of China' s electricity, and the development potential of the micro-grid application form in China were discussed.
Date : 2025-12-19 Size : 648kb User : 杰