CT-2线开卷机面板技术改进

为克服武钢硅钢片厂ＣＴ－２线开卷机上钢卷产生塔卷问题而增设的面板在运行过程中坠落和面板的主要零件寿命极短等问题，实施了改进，本文就面板在运行中坠落的原因进行了分析，对改进型面板的构思与设计进行了介绍。     

NBR／PP基热塑性耐热油橡胶的研制

分别选择ＭＰ、ＭＡＤ等作为ＮＢＲ／ＰＰ增容体系，对于橡胶比以及不同牌号的基质对产品性能的影响也进行了探讨。在讨论硫化系时，采用了３种不同的硫化体系：ＤＣＰ体系，酚醛树脂体系以及硫磺体系，并对它们分别进行了探讨。通过动态全硫化技术制得了 耐热油性能的热塑性橡胶，通过进行透射电镜的分析对产品的亚微观结构和结晶相形态也进行了探讨。     

DOW火灾爆炸指数评价法在输油站场的应用

为了客观地评价输油站场的安全性，采用“DOW化学公司火灾、爆炸指数评价法”来确定物质、设备及工艺装置等存在的潜在危险性，定量计算火灾爆炸可能导致的危害程度和停产损失，是一种有效的手段。     

准同步CDMA及其在卫星移动通信中的应用

研究了一种新颖的多址准同步CDMA方式，理论推导了准同步CDMA性能表达式，在性能评价的基础上，构造了两放新的扩频码集，分析表明，采用新码集时，准同步CDMA性能要远优于异步CDMA，最后分析了卫星移动通信系统反向信道采用准同步CDMA时的性能。     

Electroelastic Analysis of a Piezoelectric Layer with Electrodes

The electroelastic analysis of a piezoelectric layer with two semi-infinite electrodes is made. The layer surfaces are clamped and a voltage is applied between the layer surfaces and the electrodes. By using the integral equation method, the electroelastic field is derived for the cases of crack-type electrodes and of rigid electrodes, respectively. It indicates that the concentration of electric field an electric displacement occurs near the electrode tips for both cases. However, the stresses are bounded for the former, and possess singularity for the latter. The field intensity factors and energy release rate are obtained in explicit form. The counterpart for a single semi-infinite electrode is given.     

串联盘输送机输送系统的动态分析

串联盘输送机是一种新型的散料运输机械,此种机械在国内的研究还没有形成成熟的理论基础,这使得输送机的动态分析和设计成为急需解决的问题.根据输送机的结构建立起输送机有阻尼多自由度振动的力学模型,分析确定了系统参数,提出并论证了串联盘输送机是一种非线形多自由振动系统的理论基础.     

Frequency-dependent losses on high-performance interconnections

This paper compares the major classes of chip-to-chip and on-chips interconnections used in high-performance computers and communication systems and reviews their electrical characteristics. Measurement results of dielectric loss are shown and the attenuation is compared for printed-circuit-board, glass-ceramic, thin-film, and on-chip wiring. Simulation results are shown with representative driver and receiver circuits, guidelines are given for when losses are significant, and predictions are made for the sustainable bandwidths on useful wiring lengths     

建立大坝安全网络管理系统

为进一步完善和提高我国水电厂大坝安全管理水平 ,简述了建立大坝安全网络管理系统的必要性和可行性 ,提出了大坝安全网络管理中心的工作职能以及系统建立的方法和步骤     

闪急沸腾喷雾场粒度分布特性的研究

用激光全息术测量了闪急沸腾喷雾场的粒度分布，并与常温雾场粒度分布进行了比较。结果表明，闪急沸腾喷雾场的粒度分布具有喷雾粒子直径小，喷注的轴向径向粒子分布均匀等特点。     

Optimal PN sequence design for quasisynchronous CDMA communicationsystems

Direct sequence (DS) code-division multiple-access (CDMA) is a modulation and multiple access technique currently being implemented in digital cellular mobile radio communication systems. The conventional quasisynchronous (QS) DS-CDMA communication system is generalized, and the problem of optimal spreading pseudonoise (PN) sequence design for new QS DS-CDMA communication systems is formulated. The classes of optimal PN sequences which have good pseudo-randomness and very small cross-correlation values for some range of offsets are designed by using a matrix-based approach. In contrast to the case of the other sequences, the optimal PN sequences produce small multiple-access interference (MAI) which is not affected by the number of users if there are sufficiently large number of users in the link. The new results are compared with the commonly used PN sequences to prove the superiority of our designed sequences, and the system performance of the QS-CDMA systems using different PN sequences are also evaluated