转变观念是润滑技术现代化的必要途径

探讨了国内润滑工作存在的问题，分析了近20年来润滑技术的发展状况，介绍了国内先进单位合理用油取得的效益和经验，提出用油现代化的看法。     

带FPGA的PCI接口应用

文章介绍了一种带FPGA的PCI接口的应用及设计方法。该方法将PCI接口和PCI用户逻辑集成在一片FPGA里，可以对整个逻辑进行仿真测试，大大缩短了开发周期，提高了系统集成度和性能。文章重点叙述了Quicklogic公司提供的32wug TARGET接口芯片QL5030的原理和结构，分析了时序设计要点，给出了典型应用的逻辑框图和注意事项。     

一种快速的海面特征SAR成像仿真技术

水下物体运动引起扰动，会在海面产生尾迹。这种尾迹特征同运动物体的参数和下潜的深度以及海况有关。研究这种尾迹特征及其合成孔径雷达(SAR)成像，就有可能利用SAR来检测这个水下运动物体。本文给出了一种水下运动物体的伴流尾迹的快速模拟方法及其合成孔径雷达(SAR)成像仿真方法，并对模拟仿真的结果进行了讨论。     

Evaluation of a two-temperature control structure for a two-reactant/two-product type of reactive distillation column

Several different control structures have been proposed for reactive distillation columns. The appropriate control structure depends on the flowsheet and on the type of reactions occurring in the column. If two reactants are involved and if it is desirable to operate the process without any excess of reactant, it is necessary to manage the fresh feed streams so that the stoichiometry is exactly balanced. A composition analyzer that measures an internal composition in the column is often required. However, if two products are produced, it is possible to avoid the use of an analyzer by using two temperatures in the column to adjust the two feed streams. This type of structure was proposed by Roat et al. [Roat, S., Downs. J., Vogel, E., Doss, J., 1986. Integration of rigorous dynamic modeling and control system synthesis for distillation columns. In: Chemical Process Control—CPC III. Elsevier, Amsterdam.] for the ideal reaction A+B↔C+D in one of the earliest papers dealing with reactive distillation control.The purpose of this paper is to explore the effectiveness of this two-temperature control structure for various column designs (number of reactive stages) to quantify the impact of design on controllability. We also discuss the issues of the selection of the trays whose temperatures are to be controlled and the tuning of the two interacting temperature controllers. Disturbances in production rate and fresh feed compositions are made to examine the rangeability of this control structure. Both an ideal reaction system and the methyl acetate system are studied. One of the main conclusions is that the locations of the temperature control trays should be made such that the two temperature controllers both have direct action (an increase in temperature increases feed), which requires negative openloop process gains for both loops.     

一种改进的二自由度PID控制器

根据目标值滤波器型二自由度PID控制器，提出一种新型二自由度PID控制器。实验表明该算法使用可靠、精度高，而且具有较强的抗干扰能力和鲁棒性，可大大提高系统的控制品质。     

适用于仿真工业控制系统的软件包

本文提出的仿真软件包具有丰富的数学运算功能、控制算法功能、逻辑运算功能及图形编辑能力．软件包结构上充分体现了模块化的设计思想，而在功能及组态方法上又十分类似于分散控制系统相应的功能。使用该软件包，可方便地对各种典型的工业控制系统特别是由微处理机组成的分散控制系统进行仿真研究。     

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本文介绍了四川盆地几十年钻井实践中遇到的主要困难。并在总结国内外碳酸盐岩油气钻井经验的基础上,针对主要困难的特点提出在四川盆地提高钻井速度的途径。     

模式识别催化剂生产调优

本文介绍如何将模式识别应用于生产调优,着重讨论了多指标(优化目标)因素的分级,提出了用模糊综合评价度量和依有序聚类最小损失函数准则划类,并相继进行变量与样本筛选、信息压缩、特征提取和模拟仿真获得优区操作条件,实施效果显著。     

内嵌RAM的液晶显示控制驱动器

讨论一种液晶控制驱动器的设计及使用方法。根据设计要求，阐述了每个分模块的设计思想与设计方法，并进行了数模混合仿真。