基于量化规则格的关联规则渐进更新*

提出一种基于量化规则格的规则更新算法,重点讨论了在新增格节点的过程中规则更新的思想,实现在格的渐增生成过程中,相应的关联规则也得到渐进更新.最后给出简单实例说明规则更新算法的正确性.     

组合规则启发式算法在模具加工作业调度中的应用研究*

由于现行的优化算法在解决模具车间调度问题上存在局限性,目前大部分模具车间由人工编制车间作业计划,导致生产效率较低、物料供应不能同步化等问题.为此,介绍了采用基于组合规则的启发式算法,选择加工时间最短和最小等待时间等规则,解决了现行的优化调度算法在车间调度问题中所遇到的难点.经实例验证获得了较为理想的结果.     

论儒家"差等观"及其对中国法治的影响

作为中国各种哲学渊源中影响最大的儒家思想,其“差等观”深刻地体现于家庭（族）生活、社会生活、政治和法律生活等方面的理论当中,对中国古代的法思想影响至深.在当代中国的法治建设进程中,应当对传统的“差等观”加以扬弃改造,批判继承,在全社会树立现代的、注入自由平等观的“差等观”.     

基于ESO-MLD的逆变器开路故障快速诊断方法

为了减小电机驱动系统中未知干扰对逆变器开路故障诊断的影响,提出了一种基于扩展观测器ESO(extended state observer)和混合逻辑动态MLD(mixed logic dynamic)模型的逆变器开路故障快速诊断方法。通过分析开关管在正常工作和故障状态下的电流流向路径,建立了逆变器的混合逻辑动态模型,并设计了一种电压扩展观测器。根据观测器的观测电压和实际系统输出电压之间的相电压残差进行故障检测,通过故障相残差与正常两相残差之间的数值关系来定位故障相和故障管。该方法有效减小了系统中未知干扰和不确定因素对逆变器故障诊断的影响,提高了故障诊断率。最后,通过Matlab/Simulink仿真验证了该方法的正确性和有效性。     

Application of neuro-fuzzy techniques in oil pipeline ultrasonic nondestructive testing

This paper presents a novel approach to the problem of nondestructive pipeline testing using ultrasonic imaging. The identification of the flaw type and its dimensions are the most important problems in the pipeline inspection. Unlike typical methods, a decision based neural network is used for the detection of flaws. We train a generalized regression neural network to determine the dimensions of the corrosions and generate the whole image of both the internal and external walls of the oil pipeline. As an improvement to the detection algorithm, we introduce fuzzy decision-based neural network algorithms for the detection and classification of the corrosions. The simulation and experimental systems results show that these new methods outperform the existing methods.     

基于模型参考模糊自适应的电液位置伺服系统鲁棒控制研究

针对电液位置伺服系统存在的参数变化及外力扰动，引入模型参考模糊自适应机构，构成模型参考模糊自适应控制，即MRFAC，仿真实验表明，与传统PID相比，该方法可以有效抑制参数扰动及外力干扰，具有很强的鲁棒性。     

CPLD/FPGA在工件取放设备中的应用

在分析PLC优缺点的基础上，提出一种利用在线可编程逻辑控制代替PLC的新技术。此外，给出了用在线可编程器件CPLD/FPGA组成的、VHDL语言实现的工件取放设备控制电路设计和程序。     

水泥企业PLC控制系统的常见故障与处理

可编程序控制器(PLC)其性能可靠、性价比高、维护简便,在水泥生产控制中得到了广泛的应用。但使用中,因设计、使用或维护等方面原因,其电源模块、存储模块、输入输出模块及其外围线路会产生各类故障。结合故障实例,详细介绍和分析总结了PLC常见故障——电源故障、异常故障、通信故障、输入/输出回路故障、接线端子故障等等的现象、产生原因和处理措施。同时,总结了PLC系统的维护和保护的相关要求及技术措施。     

基于线性时序逻辑的最优巡回路径规划

基于线性时序逻辑(Linear temporal logic, LTL)的路径规划方法中, 多点巡回路径规划问题尚无有效解决方案. 为了在道路网络中实现最优巡回监测, 提出了基于LTL的最优巡回路径规划方法. 首先, 将环境建模成一个切换系统, 用LTL语言描述包含多个巡回点和障碍物的任务需求; 接着, 利用循环移位法构建能够融合任务需求和环境模型的扩展乘机自动机, 以建立路径信息完整的网络拓扑; 最后, 采用基于迪科斯彻法的最优综合算法搜索扩展乘机自动机网络上的最优路径, 从而获得能够满足复杂任务需求的最优巡回路径. 仿真结果表明, 该方法能够有效实现最优巡回路径规划.     

Fuzzy arithmetic based reliability allocation approach during early design and development

During early design and development stages, every engineering system has to meet its specific reliability goals. The target reliability of the system is achieved through application of an effective reliability apportionment technique to its subsystems. There are various traditional methods exist to perform the reliability allocation based on engineering factors that are assessed in a subjective manner. The conventional reliability allocation approach requires the assessment of factors like complexity, cost, and maintenance. This may not be realistic in real applications if they are assessed in a crisp manner by the domain experts of their varied expertise and background.In this paper, we treat allocation factors as fuzzy numbers, which are evaluated in fuzzy linguistic terms. As a result, fuzzy proportionality factor scales are proposed for the subsystems. In order to accomplish fuzzy division to evaluate the fuzzy proportionality factor, an approximation method based on linear programming for trapezoidal fuzzy numbers is also proposed in this paper. For the evaluation of weighting factors from fuzzy proportionality factors, centroid method of defuzzification is being employed. The allocated reliability of each subsystem is computed with the help of weighting factor thereafter. An example is provided to illustrate the potential application of the proposed fuzzy based reliability allocation approach.