Degradation and heat generation are among the major concerns when treating Lithium-ion batteries’ health performance parameters. Due to high correlation between battery’s degradation, autonomy cell’s operational temperature, Battery Thermal Management System plays a key role in maximizing health. Given fact that ideal temperature for degradation minimization usually does not match minimization,...

Mismatches between electronic part procurement lifecycles and the lifecycles of the products that they are used in cause products with long manufacturing and/or support lives to incur significant obsolescence management costs. Lifetime buy is one of the most prevalent mitigation approaches employed for electronic part obsolescence management. Making lifetime purchases of parts when they go obso...

investigation of reliability characteristics under fuzzy environments is proposed in this paper. fuzzy weibull distribution and lifetimes of components are using it described. formulas of a fuzzy reliability function, fuzzy hazard function and their α-cut set are presented. furthermore, the fuzzy functions of series systems and parallel systems are discussed, respectively. finally, some numeric...

the aim of this study was to investigate the effect of management dimensions of fan relationship on fan lifetime value in iran football premier league. the research method was developmental with regard to the aim and exploratory considering the nature of the study. the data were gathered through interviews, observation, review of the related literature and questionnaires. the statistical popula...

Background and Purpose—Stroke is emerging as a major public health problem for women, as it is for men. Controversy persists regarding gender differences in stroke incidence, severity, and poststroke disability. Methods—Participants in the Framingham Original (n 5119; 2829 women) and Offspring (n 4957, 2565 women) cohorts who were 45 years and stroke-free were followed to first incident stroke....

In this paper, we discuss the prediction problem based on censored coherent system lifetime data when the system structure is known and the component lifetime follows the proportional reversed hazard model. Different point and interval predictors based on classical and Bayesian approaches are derived. A numerical example is presented to illustrate the prediction methods used in this paper. Mont...

In this study, a mixed $delta$-shock model with discrete-time is defined by combining $delta$-shock and extreme shock models. In this model, a system with multiple states fails in two ways: first, when k interarrival times between two consecutive shocks with magnitude larger than the critical threshold $gamma$ are in $[delta_1, delta _2], delta_1 < delta _2$; and second, when the interarrival t...

nowadays, marketing managers are more concerned with identifying and understanding customer behavior in the online space. since the customers in online space are not visible, it is much essential to have more information about them to provide better services. customer segmentation is one way to improve the customer problems in an online space. identifying characteristics of customers and optima...