对空压机一级超压的分析

对5L-408型空压机一级超压找出了原因，并对超压的机理进行了分析。     

活塞压缩机安装维修、操作心得

介绍压缩机安装维修操作应抓住的关键点。     

两种氧压机的性能对比

对两种氧压机的性能在结构和运行效果上进行对比，指出YH221相对于YH207的先进性。     

Fuzzy classifier design using genetic algorithms

A new method for design of a fuzzy-rule-based classifier using genetic algorithms (GAs) is discussed. The optimal parameters of the fuzzy classifier including fuzzy membership functions and the size and structure of fuzzy rules are extracted from the training data using GAs. This is done by introducing new representation schemes for fuzzy membership functions and fuzzy rules. An effectiveness measure for fuzzy rules is developed that allows for systematic addition or deletion of rules during the GA optimization process. A clustering method is utilized for generating new rules to be added when additions are required. The performance of the classifier is tested on two real-world databases (Iris and Wine) and a simulated Gaussian database. The results indicate that highly accurate classifiers could be designed with relatively few fuzzy rules. The performance is also compared to other fuzzy classifiers tested on the same databases.