基于磁流变阻尼器的车辆悬架系统模糊半主动控制

在对磁流变液和磁流变阻尼器的研究基础上 ,以磁流变阻尼器作为半主动控制元件组成模糊半主动悬架系统。运用数值仿真和试验研究等方法对基于磁流变阻尼器的模糊半主动悬架进行了研究。数值仿真和试验结果表明 ,设计的模糊半主动控制算法可对基于磁流变阻尼器的半主动控制悬架实现有效的控制     

窑尾废气处理系统"双风机"与"三风机"技术方案的浅析

摘要：理系统主要分为双风机系统与三风机系统。以5000t／d熟料生产线为例，详细介绍了双风机系统和三风机系统的工艺流程、风机配置；分别介绍了系统的风机配置情况：从工艺布置、生产操作、设备运行、投资大小及运行电耗等多角度，重点进行二种系统的对比分析。在此介绍-分析-对比的基础，作者对原料粉磨和废气处理系统提出了几点看法。     

格灵化工基于SmartPro的DCS系统设计与应用

介绍北京和利时公司开发的SmartPro MACS Ⅲ型DCS系统在格灵化工硫酸装置中的应用.DCS系统包括硬件组成、软件设计及控制功能实现.该控制系统稳定可靠、控制精度高.在提高生产装置自动化水平的同时,使硫酸产品质量提高,生产成本大幅度降低.     

智能化结构分析建模方法

建立正确的模型是进行机械结构分析的关键技术之一。提出了一种基于知识的结构分析建模方法,给出了基于知识结构分析建模方法的总体结构,讨论了知识的获取、分类与表达,提出了推理机制以及智能求解策略,提高了结构有限元分析建模方法的实用性和有效性。最后用实例说明了应用效果。     

氯气干燥系统的技术改造

介绍了引起氯气干燥系统设备管道漏裂、堵塞、腐蚀的原因及其危害性,提出了包括设定合理的工艺参数,严格执行操作规程及改造更新设备管路等解决措施。     

用DCS顺控实现电除尘自动控制

介绍一种对电除尘工序进行远程自动控制的方法。使用DCS顺序控制图，通过模块组态和内部编程，实现多台设备的自动控制，优化工艺过程，提高该工序的自动化水平。     

Decision support in machine vision system for monitoring of TFT-LCD glass substrates manufacturing

This study addresses classification methodology for the automatic inspection of a range of defects on the surface of glass substrates in thin film transistor liquid crystal display glass substrate manufacturing. The proposed methodology consisted of four stages: (1) feature extraction by calculating the wavelet co-occurrence signature from the substrate images, (2) handling of imbalanced dataset using the Synthetic Minority Over-sampling TEchnique (SMOTE), (3) reduction of the feature's dimension by principal component analysis, and (4) finally choosing the best classifier between three different methods: Classification And Regression Tree (CART), Multi-Layer Perceptron (MLP) and Support Vector Machine (SVM). In training the SVM and MLP classifiers, the simulated annealing algorithm was used to obtain the optimal tuning parameters for the classifiers. From the industrial case study, the proposed feature extraction algorithm could remove the defect-irrelevant image features and SMOTE increased the accuracy of all three methods. Furthermore, the optimized SVM and MLP models were more accurate than the CART model whereas a higher accuracy of 89.5% was observed for the proposed SVM model.     

A framework for tag-aware recommender systems

In social tagging system, a user annotates a tag to an item. The tagging information is utilized in recommendation process. In this paper, we propose a hybrid item recommendation method to mitigate limitations of existing approaches and propose a recommendation framework for social tagging systems. The proposed framework consists of tag and item recommendations. Tag recommendation helps users annotate tags and enriches the dataset of a social tagging system. Item recommendation utilizes tags to recommend relevant items to users. We investigate association rule, bigram, tag expansion, and implicit trust relationship for providing tag and item recommendations on the framework. The experimental results show that the proposed hybrid item recommendation method generates more appropriate items than existing research studies on a real-world social tagging dataset.     

EPDM硫化橡胶的热稳定性研究

对ＥＰＤＭ的过氧化物硫化、硫黄硫化和含硫化合物硫化以及两种不同硫化体系并用的硫化胶热稳定性进行比较，优选热稳定性较好的硫化体系用于产品的制造。采用过氧化二异丙苯（ＤＣＰ）硫化的硫化胶虽具有极好的热稳定性，但其耐撕裂性能较差，且价格较高。因此可考虑采用ＤＣＰ的并用硫化体系。当ＤＣＰ用量为５份，硫黄用量不超过１份时，硫化胶具有较好的热稳定性。     

柳州,云浮,宣化三厂预热分解系统技术改进经验引起的思考

本文分析了柳州、云浮、宣化三厂预分解系统粘结堵塞、难以稳定生产和不能“达产达标”的原因,逐一介绍了三厂预分解系统技术改进的措施和效果,并就其技改工程经验进行了分析总结和探索思考.