Control charts are widely used in industry as a tool to monitor process characteristics. Deviations from process targets can be detected based on the evidence of statistical significance. The control chart helps to take decisions such as the need for machine or technology replacement to monitor the process with categorical observations. Fuzzy logic is used to cram the uncertainty and vagueness ...

This paper presents the applications of hierarchical clustering to the generators in a power system. A useful application of fuzzy mathematics is that the correction of clustering results and determination of whether it can obtain correct transitive closure. Thus, the fuzzy transitive closure plays an important role in hierarchical clustering. Based on the fuzzy relation matrix, the hierarchica...

Several tests of radiology have been designed to predict difficult laryngoscopy, but there were few relative studies of Chinese patients. Our study is to investigate the accuracy of lateral neck radiography in predicting difficult laryngoscopy in Chinese patients. The operative database of Xuanwu Hospital, Capital Medical University, was reviewed and all the patients who had performed lateral n...

during the last years, the concept of input congestion and technical ineff-ciency in data envelopment analysis (dea), have been investigated by manyresearchers. the motivation of this paper is to present models which obtain thedecreased output value due to input congestion and technical ineciency. more-over, we extend the models to estimate input congestion, technical ineciencyand output red...

By a classical result of Gomory and Hu (1961), in every edgeweighted graph G = (V,E,w), the minimum st-cut values, when ranging over all s, t ∈ V , take at most |V |−1 distinct values. That is, these (|V | 2 ) instances exhibit redundancy factor Ω(|V |). They further showed how to construct from G a tree (V,E′, w′) that stores all minimum st-cut values. Motivated by this result, we obtain tight...

Abstract Background: Breast cancer is the most common in women. The occurrence of metastasis breast should be detected early. Tumor necrosis factor-α (TNF-α) involved every step carcinogenesis process. A rise TNF-α level linked to advancement cancer. We aimed determine association between levels and metastases. Methods: An analytic cross-sectional study was conducted on women with treated at On...