Ethics, engineering, and sustainable development

The author attempts to provide the rationale for a philosophy of engineering ethics grounded in the notion of sustainable development. It is central to his thesis that this new philosophy can be best inculcated into the culture of engineering through engineering education-experience and intuition are not enough. Engineering ethicists must work more closely with engineering scientists to ensure that all facets of sustainable technology become a practical reality. While professors of engineering science can increase awareness by stimulating engineering students to build sustainable ideas into their designs, professors of engineering ethics might work to complement this by helping to transform the attitudes, values, and philosophies of the new engineer. If the engineering profession can accomplish this grand challenge through engineering ethics education, and train future engineers to become leaders in business and social policy, as well as counselors to corporate executives and citizens alike, they can finally fulfill their professional ideal as benefactor of humankind, and no longer be cast as obedient servants to corporatism.     

锂离子无机固体电解质研究进展

锂离子无机固体电解质是先进锂电池材料研究的重点之一,对锂电池未来的发展起到非常重要的作用.综述了几种主要类型锂离子无机固体电解质材料的结构、性质和改性研究,并且对一种性能优良、具有实用前景的固体电解质材料--LiPON进行了详细叙述,最后对以LiPON为代表的锂离子无机固体电解质的可能发展方向及其改性途径做出展望.     

科学哲学逻辑结构初探

本文在论证了科学哲学研究对象和方法的基础上,提出了以科学概念为中心,以科学本体论、科学认识论、科学史哲学为内容的马克思主义科学哲学逻辑结构的构想。     

Teaching Multicomponent System Modeling

This paper presents material intended to be used to modify existing control and dynamics courses being taught at many universities. The proposed modifications emphasize how one proceeds to develop a complete simulation of a multicomponent system that can be used for dynamics and control studies. A modeling philosophy and the detailed steps one should go through in developing a system model are presented.     

Bioelectric Measurements: Research Preparation with Experimental Realism

The details and philosophy of an interdisciplinary course that combines bioelectrical measurements and research preparation are described. This lecture-laboratory course is offered to students in bioengineering, electrical engineering, and biology in an attempt to provide some of the modern tools, techniques, and experiences necessary to perform quantitative experimental research. A systematic approach to research is used to guide the student to a final independent investigation of a problem of his choice. The combination of measurements and research experience of an interdisciplinary nature, for students with widely varying backgrounds, presents some rather unique advantages and difficulties that may be of interest to educators.     

聚合物／无机颗粒复合质子交换膜研究进展

概述了近几年来燃料电池用聚合物／无机颗粒复合质子交换膜的研究现状,重点介绍了全氟磺酸聚合物／无机颗粒复合质子交换膜、磺化聚合物／无机颗粒复合质子交换膜的制备方法和性能特点,并对今后的研究方向进行了展望。     

锂离子电池用电解质掺铝磷酸钛锂的研究现状

综述无机固体电解质和NASICON型体系的基础理论,重点介绍掺铝磷酸钛锂(LATP)的制备和掺杂改性研究进展,展望无机固体电解质LATP的发展趋势。LATP的室温离子电导率可超过10~(-4)S/cm,具备实际应用的水平;电极材料与固体电解质固固界面阻抗较大,倍率性能相对较差。     

阻燃型丙烯酸酯压敏胶的研究进展

在分析丙烯酸酯压敏胶粘剂的粘附特性和结构特点基础上,阐述了其阻燃机理,比较了制备阻燃型丙烯酸酯压敏胶的多种方法,结果认为,以绿色环保为前提,加入阻燃基团,研制本体阻燃型的丙烯酸酯压敏胶将越来越受到人们的重视;阻燃剂的复合技术也是达到高效阻燃的重要途径之一.使用有机阻燃剂与无机阻燃剂所产生的协同效应将为合成材料的阻燃开辟广阔的前景,新型环境友好型并具有阻燃功能的丙烯酸酯压敏胶将会获得更加广泛的应用.     

Blocking out reengineering's evolution. A long-distance jump shot

The fundamental shift in managerial philosophy is behind the waves of delayering, reengineering and empowerment sweeping across today's organization. Rather than managing through abstractions of plans and controls, top-level managers are recognizing that their key task is to create a work environment that stimulates the company's valuable human resource to be more motivated, creative and entrepreneurial than its competitors' employees. Only when they liberate and motivate their people to develop and leverage their knowledge and expertise will they have created a dynamic, self-renewing corporation.     

基于大安全观的电网运行管理关键技术——关于印度大停电的思考

分析了印度大停电事件的深层原因,提出了促进中国电力系统安全运行的基本思路。在此基础上,提出了基于大安全观的电力系统运行管理的关键技术及其研究重点,包括协调规划类技术、协同调度控制类技术、安全保障类技术,旨在为中国电力系统安全运行相关基础研究和实际工作提供参考借鉴。     

Practices and new concepts in power system control

This paper reviews the existing power system control practices (both inside and outside of North America) and considers their ability to cope with the new regulatory and technological changes facing the electric supply industry in the present and near future. New or revised control practices are also methodically analyzed to see how they could meet the evolving power system control needs. Given both the trend of technological advances over the last decade and the expectation that those trends will continue, the near future holds opportunities for tremendous improvements in power system control. Key issues were identified and used to review possible directions for the concepts, philosophy, and guiding principles for power system control. Input comes from the electric supply industry through questionnaires, various relevant industry meetings, published materials, review of other on-going research, and working meetings with the North American Electric Reliability Council Performance Subcommittee. This research was sponsored by the Electric Power Research Institute (EPRI)     

Considerations for the Systematic Design of Machine Self-Diagnosis

An approach is suggested for the cost-effective systematic design of product on-board diagnostics that allow simple and complex appliances to diagnose or predict failures within themselves. This methodology differs from other current less formal approaches in that it encourages a wholly integrated design philosophy. Trends indicate that on-board diagnostic capabilities will become much more important in both the eyes of the consumer and the manufacturer in years to come. As such, the lack of a formal approach could represent a significant design bottleneck. The approach offered represents a meaningful first step in avoiding such a bottleneck. Furthermore, the technique can be used for evaluation and retrofit of diagnostics on existing products. Relevant background regarding machine self-diagnostics is presented, and future research needs are identified.     

火力发电机组能耗实时监测模型的研究

介绍了一种新的锅炉效率计算模型,并分析了建立在此基础上火力发电机组能耗实时监测模型的研究方法,最后介绍了能耗在线智能诊断基本思路。     

EPLOT: a machine-independent graphics system

EPLOT was designed as an inexpensive and interactive small graphics library to be run on workstations, stand-alone microcomputers and mainframes, or microcomputers used as graphics terminals. It started as a minor extension to the machine-independent UNIX PLOT library but now includes capabilities for menu and mouse operations, animation, and other functions required in student projects. EPLOT allows the easy development and transfer of interactive graphics programs between SUN, MSDOS, Amiga, ATARI, and Apple Macintosh systems. It has played an important role in the philosophy of the computer graphics course offered at the authors' institution. The scope of EPLOT is demonstrated through a series of projects and programs     

Electrical performance of RTV silicone rubber coatings

The role played by two major constituents in a room temperature vulcanized (RTV) silicone rubber coating, namely, the inorganic alumina trihydrate (ATH) filler and the silicone polymer, on the coating's electrical performance was examined. The principal variable in the RTV silicone rubber coatings evaluated was the different weight fraction of the silicone polymer and ATH inorganic filler normally used for improving the tracking and erosion resistance. Other formulation details were essentially the same in the cured rubber. The coatings were spray coated on glazed porcelain rods and subjected to accelerated aging in a salt fog chamber. The changes produced by accelerated aging on the contamination withstand capability, leakage current suppression and erosion resistance were determined and correlated with the ratio of polymer to inorganic filler in the coating. It is shown that critical aspects of electrical performance necessary for satisfactory service operation such as contamination withstand capability before flashover and leakage current suppression are superior for the coating with a relatively high ratio of polymer to inorganic filler in comparison to the coatings with a relatively low ratio of polymer to inorganic filler. While all the coatings showed a high erosion resistance under mild discharge activity, the erosion resistance was found to be superior for the formulations with high inorganic filler under conditions of intensive surface discharge activity     

Li/FeS2电池放电性能的研究

对Li/FeS2电池进行了研制,得到了生产工艺和技术参数.研究了改善Li/FeS2电池放电性能的两种方法:一是在正极中加入活性物质添加剂;二是增加电解液中无机盐成分.结果表明:在正极中加入金属单质和氧化物以及增加电解液中无机盐含量,Li/FeS2电池的放电容量和放电平台都有显著改善.综合不同放电制度的测试结果,最佳添加剂用量为金属单质0.5%、氧化物3%、无机盐0.4%.     

主变中性点过电压保护配置原则探索

针对110kV主变中性点局部不接地的系统,在分析避雷器和放电间隙作用基础上,对无间隙氧化锌避雷器并联放电间隙+间隙电流、过电压保护方案的配置原则,提出了新的想法。本文思想对于非有效接地情况下的220kV分级绝缘变压器具有一定参考价值。     

主变中性点过电压保护配置原则探索

针对 110kV主变中性点局部不接地的系统 ,在分析避雷器和放电间隙作用基础上 ,对无间隙氧化锌避雷器并联放电间隙 +间隙电流、过电压保护方案的配置原则 ,提出了新的想法。本文思想对于非有效接地情况下的 2 2 0kV分级绝缘变压器具有一定参考价值。