Comparison of Coherent Systems with Dependent Components Based on ‌‎the ‎Reversed Mean Residual Life Order

background & aim : many changes occur during and after pregnancy which affect physical, psychological and social health and generally women's quality of life. this study aims to explore the relationship between quality of life and sexual dysfunction after delivery. methods & materials : this cohort study was designed to compare the relation of mode of delivery to quality of life and sexual sati...

This paper is focused on survival analysis of electrical components. The main goal of this paper is to develop a method for on-line estimation of the Mean Time To Failure (MTTF) of electrical components under dynamic stress levels. The proposed method models the variations of the stress levels as a stochastic process. Hence, a stochastic failure rate function can be developed for each electrica...

purpose: to evaluate the health-related quality of life (hrqol) among strabismus patient. methods: one hundred and twenty-two strabismic patients ≥ 14 years who scheduled for surgery were selected non-randomly. the patients completed the adult strabismus 20 (as-20) and sf 36 questionnaires. measurements were performed preoperatively and 3 and 6 months postoperatively. changes in psychosocial an...

A new four-parameter model called the Marshall-Olkin extended generalized Gompertz distribution is introduced. Its hazard rate function can be constant, increasing, decreasing, upside-down bathtub or bathtub-shaped depending on its parameters. Some mathematical properties of this such as expansion for density function, moments, moment generating quantile mean deviations, residual life, order st...

In this paper, we have developed conditions under which the entropy function and the residual entropy function characterize the distribution. We have also studied some stochastic comparisons based on the entropy measure and established relations between entropy comparisons and comparisons with respect to other measures in reliability. Conditions for decreasing (increasing) uncertainty in a resi...