复杂系统的广义预测模糊控制

针对多变量复杂系统提出一种基于广义预测与模糊控制相集成的控制策略。控制器具有多层结构与智能控制特点，不仅计算量小、实时性强，而且具有良好的“解耦”和动态跟踪性能，明显地提高了该类系统的闭环控制效果。     

样条有限点法求解任意四边形薄板大挠度问题

本文利用坐标变换下的样条有限点法，研究了任意四边形薄板的大挠度计算问题，给出了计算实例，验证了方法的正确性和较好的通用性。     

活性炭共吸附现象对有机蒸气穿透容量的影响

在空气避有机蒸气的气相色谱分析方法研究中，为获得可靠的采样效果，探讨了活性炭对共存有机蒸气的共吸附与穿透容量的关系，试验了四种有机蒸气共存时和组分的有采样效率。结果表明，共吸附使所有共存有机蒸气的穿透容量下降，共吸附物质愈多，穿透窝量下降愈严重。对二种和四种有机蒸气的共吸附，使丙酮的穿透容量下降２１．９％和４１．７％，四组分共存时，丙酮，丁酮，环已酮、甲苯的穿透窝量分别为５．６、５．０、９．７、１     

拉蒂丝起绉性能初探

本文通过对拉蒂丝起绉性能的测试，比较了拉蒂丝和普通强捻丝在起绉性能上的区别，并分析了拉蒂丝中真捻和假捻各自在起绉过程中所起的作用。     

逆指令流与指令队列预取反跟踪技术

介绍一种逆指令流的实现方法，同时把它与指令队列预取法结合在一起实现了反跟踪，使其成为一种综合性的威力较强的反动态跟踪技术     

基于LabVIEW的浑浊度数字化测试仪设计

本文将虚拟仪器技术与光频转换器件TSL230B相结合,设计新型浑浊度数字化测试仪.阐述该系统的工作原理、硬件构成及软件设计方案;实现浑浊度的自动在线测量.实验结果表明,该仪器数据处理能力强,图形化显示直观,保存与打印结果方便,测量的重复性好,精确度高.     

信息安全系统中一种高速随机序列发生器的设计与实现

对原来的真随机序列发生器进行研究和分析，指出存在的主要问题是：序列的输出速度较慢，把小波分析理论用于真随机序列发生器，改变原来的输出方式，设计一种新的高速随机序列发生器，以满足快速发展的信息安全系统的要求．     

高校校园网针对分布式攻击的检测与策略

对于分布式的校园网络来说,分布式入侵是主要危害。合理的、有针对性的使用各种入侵检测技术,对于防止计算机和网络资源的恶意使用行为,以及内部、外部用户的未授权活动,有着重要的意义。本文从校园网络的实际出发,根据校园网络的多发事件,提出了具体的检测策略。     

Analysis,simulation and verification of a bipolar current source power resonant inverter

A high‐frequency bipolar current source resonant inverter introduced in this paper has dramatic zero‐voltage‐switching (ZVS) characteristic. The analytic expressions of the resonant voltage and current are given. It indicates that the resonant waveform is composed of two parts, i.e. the oscillatory component and the stationary component. In special cases, the resonant waveform degenerates into the mono‐frequency component, as presents the graceful sinusoidal wave with very low total harmonic distortion (THD) value. Based on the closed‐form voltage and current, the component stresses on reactive elements are obtained. The impact of different component values and operating frequencies on ZVS feature is also discussed. It should be noted that the ZVS merit may be lost if the components are carelessly selected. The validity of the theoretical analysis has been proven with Pspice simulations and experimental results. Copyright © 2004 John Wiley Sons, Ltd.     

Effect of AlP master alloy on grain refinement of primary silicon in eutectic Al-Si alloys

To obtain the finer primary silicon crystals, the proprietary Al-P master alloy was adopted to modify the eutectic Al-Si alloys and the most suitable modification process was made in the experiments. The SEM (Scanning Electron Microscope) and DSC (Differential Scanning Calorimeter) analysis indicate that the Al-P modifier has more advantages over Cu-P and Fe-P modifier in easily addition, no elemental alteration and less undercooling of primary silicon′s solidification, which suggests the Al-P master alloy is an effective modifier of eutectic Al-Si alloys.