introduction: inadequate sleep hygiene may result in difficulties in daily functioning; therefore, reliable scales are important to measure sleep hygiene. the purpose of this study was to assess the psychometric properties of the persian version of sleep hygiene index (shi) in the male population. methods: in this study, 787 men, who were selected by cluster random sampling, filled out the shi,...

In reliability theory, the reliability measures contend the very important and depreciative role for any system analysis. Measurement of reliability measures is not easy due to ambiguity and vagueness which exist within reliability parameters. It is also very difficult to incorporate a large amount of uncertainty in well-established methodologies and techniques. However, fuzzy logic provides an...

A wind farm is a collection of wind turbines built in an area to provide electricity. Wind power is a renewable energy resource and an alternative to non-renewable fossil fuels. In this paper impact of wind farms in power system reliability is investigate and a new procedure for reliability assessment of wind farms in HL1 level is proposed. In proposed procedure, application of Fuzzy – Markov f...

Conventional approach to mathematical description of experiments applies probability theory. Here, another approach is used to express uncertainty based on probability, fuzzy sets, and evidence theory. The paper presents a new reliability model of an element working in different environmental and stress conditions. Fuzzy and probability descriptions are combined together using evidence theory t...

Introduction To Fuzzy Reliability is writen by Kai-Yuan Cai in English language. Release on 1996-07-31, this book has 311 page count that include important information with easy reading experience. The book was publish by Springer Science & Business Media, it is one of best computers book genre that gave you everything love about reading. You can find Introduction To Fuzzy Reliability book with...

This paper presents a new method for fuzzy system reliability analysis based on fuzzy semi-markov model with fuzzy transitions. The definition and the basic equation for interval transitions of a semi-markov model with fuzzy transitions are provided. The transitions for the above model with fuzzy states is provided for the non-homogeneous case. We apply this fuzzy technique to ATM transactions ...

During early stages of product development process, a vast amount of knowledge and information is generated. However, most of it is subjective (imprecise) in nature and remains unutilized. This paper presents a formal structure for capturing this information and knowledge and utilizing it in reliability improvement estimation. The information is extracted as improvement indices from various des...

Objectives The Rib Index, (RI), extracted from the double rib couture sign (DRCS) on lateral spinal radiographs to evaluate rib hump deformity in IS patients has been earlier introduced (Grivas at al 2000). Although various papers using the RI have been published, no study of its reproducibility was reported. To estimate the variations of the RI in a number of a pair set of lateral chest radiog...