用不完全LU分解预处理的不精确潮流计算方法

详细讨论了不精确牛顿法求解潮流方程的问题，提出带部分填充量的不完全LU分解方法是不精确牛顿法快速求解潮流的一种有效预处理方法。用结合这种预处理方法的不精确牛顿法对IEEE 118节点的电力系统潮流进行了计算，结果表明这种算法比无填充量的不完全LU分解预处理的不精确牛顿法具有较少的浮点运算次数。     

基于LMI的μ方法及其在电力系统中的应用

对现有基于线性矩阵不等（LMI）的μ（结构奇异值，SSV）方法进行了优化，给出了基于大规模稀疏LMI算法的μ鲁棒控制器设计算法，并将μ方法应用于SMIB系统励磁控制的鲁棒稳定性分析和鲁棒控制器的设计，将其结果同经典的PSS控制器的结果做了比较，数值结果表明，所得μ控制器在追踪控制能力和鲁棒性等方面优于传统的AVR＋PSS控制方式。     

新型减速器优化设计

通过对摆线针轮行星减速器设计的过程分析 ,进行了多目标优化设计 ,建立了摆线针轮行星减速器优化设计的数学模型 ,经实例计算表明 ,该方案是可行的     

Effect of Strain Rate on Formability in Sheet Metal Forming

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Analog Circuit Design Methodology in a Low Power RISC Microprocessor

There are various kinds of analog CMOS circuits in microprocessors. IOs, clock distribution circuits including PLL, memories are the main analog circuits. The circuit techniques to achieve low power dissipation combined with high performance in newest prototype chip in the Super H RISC engines are described. A TLB delay can be decreased by using a CAM with a differential amplifier to generate the match signal. The accelerator circuit also helps to speed up the TLB circuit, enabling single-cycle operation. A fabricated 96-mm² test chip with the super H architecture using 0.35-mg src="/content/lj178v60651l867g/xxlarge956.gif" alt="mgr" align="MIDDLE" BORDER="0">m four metal CMOS technology is capable of 167-MHz operation at 300 Dhrystone MIPS with 2.0-W power dissipation.     

Nd:TAG激光器从1.06 μm向1.32 μm的改装

证实了1.32 μm波长上运转的输出功率大于2.0 W的单模稳定连续波Nd:YAG激光器可通过对性能较好的进口激光器进行简单的改装而获得。同时讨论了Nd:YAG激光器在1.32 μm波长上连续波调Q及连续波锁模运转的可能性.     

浅谈电铲效率对劳动生产率的影响

本文从采矿场13m~3电铲台时效率入手,结合现场实际情况以及作者的工作实践,分析了电铲台效与采矿场全员劳动生产率之间的关系,通过现场实际数据以及理论计算方法说明电铲台时效率达不到设计水平造成的劳动生产率下降,文章分析了影响电铲效率的主要原因,指出了提高电铲效率有效途径和方法.     

Effect of some factors on direct ^99mTc monoclonal antibody labelling efficiency

This study is focused in the influence of some experimental factors on direct ^99mTc monoclonal antibody labelling method.The factors include weak ligands,reducing agent content and reduction time used in labelling.Biodistribution and scintigraphic imaging of animals are also performed.Finally,optimal parameters are supposed.     

~（99m）Tc－EC的动物研究及初步临床评价

研究显示了９９ｍＴｃ－ＥＣ的化学量对小鼠肾放射量浓聚有很大的影响，只有当鼠接受１．２５ｍｇ／ｋｇ剂量时肾的放射量最高．肾／肝达３．２。它的小鼠毒性和与血浆蛋白的结合率均低．１４例健康志愿者肾显像表明９９ｍＴｃ－ＥＣ是一种有用的锝标记肾功能显像剂．     

Theoretical consistency test of steam transport properties

The kinetic theory of polyatomic gases is used to test the mutual consistency of the thermal conductivity, viscosity and specific heat of low-pressure steam from 100° to 700°C. No inconsistency exists within the cited tolerances of the skeleton tables recommended by the Sixth International Conference on the Properties of Steam, but there is some basis for suspecting that the high-temperature thermal conductivity values are slightly low. Methods for tightening the consistency bounds are suggested.