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McGettrick A. Theys M.D. Soldan D.L. Srimani P.K. 《Education, IEEE Transactions on》2003,46(4):456-462
Currently there is a joint activity (referred to as Computing Curricula 2001, shortened to CC2001) involving the Association for Computing Machinery and the IEEE Computer Society, which is producing curriculum guidance for the broad area of computing. Within this activity, a volume on computer engineering is being developed. This volume addresses the important area of the design and development of computers and computer-based systems. Current curricula must be capable of evolving to meet the more immediate needs of students and industry. The purpose of this paper is to look at areas of future development in computer engineering in the next ten years (2013) and beyond and to consider the work of the Computer Engineering volume of CC2001 in this context. 相似文献
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新千年前十年铅酸蓄电池的发展方向 总被引:2,自引:0,他引:2
[续Continue 2 0 0 1,2 5 (1) :9]2 .2 .4 AGMseparator ForproperoperationoftheVRLAbatterytheAGMseparatorshallhavethefollowingcharacteristics: (a)highabsorptivityofH2 SO4 electrolyte; (b)highporosity ,i.e .lowelectricalresistance ; (c)smalldiameteroftheporestopreventPbden … 相似文献
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新千年前十年铅酸蓄电池的发展方向 总被引:7,自引:1,他引:7
回顾了铅酸蓄电池(LAB)在所有电化学电源(EPS)中的地位以及电池市场对铅酸蓄电池新的要求。阀控式铅酸蓄电池(VRLAB)是需要最少维护的电池,重点讨论了已解决或正在解决的VRLA电池的基础性能,以满足未来10年电池市场对电化学电源的要求。在对那些对VRLAB性能有重要作用的过程进行详细论述之后,论述了研制铅酸蓄电池一般要考虑的问题。特别要注意附加反应对封闭氧气循环的利用率和热问题的影响。最后讨论了一些新型LAB设计,这些电池在未来10年的电池市场中将占有很重要的位置。 相似文献
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The generation of coherent electromagnetic radiation across the spectrum has been one of man's major achievements. With the invention of the laser, the microwave and optical spectral range has seen intense activity in both physical and quantum electronics research and engineering. However, the submillimeter-terahertz region has been somewhat left behind, partly due to the unique challenges it presents in developing sources, detectors, and components. The paper traces selected highlights from the work of Hertz at 50 GHz to current research at terahertz frequencies. There is always the aim that a review might trigger some new ideas to apply to terahertz oscillators 相似文献
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电工行业是为国家电力建设提供服务,电力建设单位就是我们的客户,他们的要求就是我们产品的导向.电工行业要响应国家提出的以企业为主体,市场为导向的创新体系建设.现在电力工业的发展已进入黄金时期,同样我们的电器工业也正在经历着有史以来最好的一个黄金时代. 相似文献
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阐述了线路盲区(死区)的概念和相应保护重要性,分析了我国电网目前常用的盲区保护方式及特点,介绍了某国外保护利用光纤纵差保护处理线路盲区保护的实现方法,通过真实的事例说明这种盲区保护的可行性,从而证明了这种方法在灵敏性、快速性和可靠性等方面都比目前常用的保护方式优越。对不同盲区保护方式进行比较,旨在我国继电保护技术的提高和发展。 相似文献
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一种线路死区的保护方式 总被引:4,自引:0,他引:4
阐述了线路盲区(死区)的概念和相应保护重要性,分析了我国电网目前常用的盲区保护方式及特点,介绍了某国外保护利用光纤纵差保护处理线路盲区保护的实现方法,通过真实的事例说明这种盲区保护的可行性,从而证明了这种方法在灵敏性、快速性和可靠性等方面都比目前常用的保护方式优越.对不同盲区保护方式进行比较,旨在我国继电保护技术的提高和发展. 相似文献
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文章在已有文献的基础上提出用分散本机量反馈的方法,利用模态矩阵优化设计了多机电力系统分散橹棒控制器,解决了稳定约束问题。根据定量分析控制器的橹棒性,求得一个适当的予定稳定度,使得控制系统具有较强的橹棒性,同时又具有较好的动态响应。同时用这种方法对一实际大区电力系统设计了分散橹棒控制器,结果表明这种方法简单,且有实用意义。 相似文献
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为增加功率输送能力,新能源并网变压器采用两电压等级三绕组、接线形式为星角角的变压器。变压器在低压侧发生匝间故障时,差动保护灵敏度不足,同时变压器空载合闸于匝间故障时,涌流闭锁判据会闭锁差动保护,延长故障切除时间。基于星角角接线型式的新能源并网变压器零序等值回路,文中通过建立零序节点电压方程,利用区外故障及匝间故障节点电压方程特征构建匝间故障识别判据,该判据与差动保护原理相比,不受励磁涌流的影响,具有较高的可靠性及速动性。文中利用实时数字仿真系统(RTDS)进行故障仿真,验证新判据的有效性及可靠性,发现采用新判据能够可靠灵敏地识别变压器匝间故障,弥补差动保护的不足。 相似文献
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Rizkalla M.E. O'Loughlin C. Yokomoto C. Burkart G. 《Education, IEEE Transactions on》1996,39(4):512-518
In this paper, an innovative model for course development that promotes a cooperation of educational institutions and a manufacturing company is described. This linkage, which provides state-of-the art technical education for senior students, resulted from the collaboration between the Purdue School of Engineering and Technology at Indianapolis (IUPUI) and the Electronic Manufacturing Productivity Facility (EMPF) and brings together the theoretical study, laboratory design, and actual product manufacturing of surface-mount printed-circuit assemblies. The impact of the course on electrical engineering graduates is discussed 相似文献
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