完善行政权力运行机制是防止权力失控的关键

完善行政权力运行机制．防止权力失控．是行政体制改革的重要课题。本针对我国政府权力设定、运行中存在的问题，如设定不合理、缺乏透明、政府的自利行为、法律程度不高、监督不到位等进行了分析，阐述了完善行政权力运行机制的必要性，并提出完善行政权力运行机制的基本思路。     

电动汽车现状及未来

对电动汽车的关键技术进行了介绍,比较了电动汽车用各种型号电池的性能,总结了电动汽车用电动机需要满足的要求,及其动力总成的布局;对国内外电动汽车的现状进行了比较,并对其未来发展做了论述。     

对加强领导者统御权建设重要性的思考

领导者统御权是现行领导者权力的重要组成部分,它对领导者的领导效能有着重大影响,是正确而成功领导的关键。高校领导管理的特殊性决定其在行使权力的过程中,统御权的影响作用权重更大,直接影响着领导效能。在当前构建和谐社会的新时期,加强高校领导者统御权建设的重要性显得越来越重要。     

高压交流变频调速技术分析及应用

针对我国高压电机设备效率低问题,提出并分析了高压交流调速技术,得出直接高-高型变换高压变频调速技术是最先进的高效节能技术,并结合具体应用计算分析了其高节能效率.     

A 155 Mbps laser diode driver with automatic power and extinction ratio control

An integrated laser diode driver(LDD) driving an edge-emitting laser diode was designed and fabricated by 0.35 μm BiCMOS technology. This paper proposes a scheme which combines the automatic power control loop and temperature com-pensation for modulation current in order to maintain constant extinction ratio and average optical power. To implement tem-perature compensation for modulation current,a novel circuit which generates a PTAT current by using the injecting base current of a bipolar transistor in saturation region,and alternates the amplifier feedback loop(closed or not) to control the state of the current path is presented. Simulation results showed that programmed by choice of external resistors,the IC can provide modu-lation current from 5 mA to 85 mA with temperature compensation adjustments and independent bias current from 4 mA to 100 mA. Optical test results showed that clear eye-diagrams can be obtained at 155 Mbps,with the output optical power being nearly constant,and the variation of extinction ratio being lower than 0.7 dB.     

论尼采艺术价值观之变迁

尼采早期认为艺术具有至高无上之价值;中期彻底否定了前期艺术价值观,认为艺术有害清醒的、自立自主的人生,提出科学将取代艺术;而后期重新肯定艺术具有至高无上之价值.尼采艺术价值观的变迁与他对理想人生、真理、文化、人类未来等重大问题的思考密切相关.     

Editorial Power/Authorial Suffering

In this article, I analyse the publish or perish enterprise and in particular the origins of editorial power/knowledge. My actor-network analysis shows how tenure, promotion, and salary decisions apparently unrelated to editorial decisions are important elements that accrue power/knowledge to editors of particular journals. What my actor-network analysis does not show, and which I therefore analyse from a subject-centred perspective, is the other side of editorial power/knowledge: authorial suffering. I suggest that the structure of our science education discipline necessitates a particular commitment to the responsibilities and obligations of editors and reviewers to the authors, particularly the newcomers, and therefore to the production and reproduction of science education.     

基于输出电压波形的电路故障诊断

论述了晶闸管相控变流器故障产生的原因。通过对电路故障类型的详细分析,提出一种基于示波器在线检测的电力电子电路故障诊断方法。     

提高教师继续教育效果的几点思考

教师继续教育对提高中小学教师素质有着重要意义,提高教师继续教育效果可从三个方面努力:合理确定教师继续教育的目标;丰富培训形式,使教师继续教育灵活多样;打造核心竞争力,彰显培训机构资源整合力。     

党的先进性源于历史并为历史所验证

先进性是马克思主义政党的一个突出特点,它是由党的性质和宗旨所决定的。党组织的先进性与党员个体的先进性是辨证统一的。从党诞生的历史看,党的先进性体现于整个新民主主义革命的进程之中,这是历史发展的必然趋势。党的先进性是党的执政之源,更是党的领导核心的保证。