We consider a one-unit repairable system under continuous monitoring and a perfect repair policy, with instantaneous commencement of repair and installation to operation. For arbitrary continuous failure time and repair time distributions, we study the problems of point estimation, one-sided confidence interval estimation and hypothesis testing for the limiting availability, based on a random s...

This paper deals with the M + 1 out-of-N:G system with correlated failure and single repair facility, where correlated failure means that i (1 ~ i ~ N) operating units in the system are possible to fail at the same time. We consider two repair policies, and under each repair policy Laplace transform of point-wise availability and reliability, meantime to the first system failure and stationary ...

The present paper investigates the reliability and sensitivity analysis of a coal handling unit of a thermal power plant using a probabilistic approach. Coal handling unit is the main block of a thermal power plant and it is necessary for a good function of a power plant that its power supply, which is dealt in coal handling unit, must function continuously without any obstacle. The configurati...

Replication is an essential utility in mobile environments. Mobile units not connected to xed networks are left with their own data resources which may or may not contain the necessary data. This paper describes beneets and problems using replication in mobile infrastructures. We compare diierent replication approaches for xed and mobile systems. We show that traditional protocols are inadequat...

Resource allocation involves deciding how to divide a resource of limited availability among multiple demands in a way that optimizes current objectives. In this brief paper we focus on one type of distributed resource allocation problem where via an imperfect communication network multiple processors can share the load presented by multiple task types. We introduce asynchronous “cooperative” r...

Abstract Background Stroke Survivors (SSs) often present with an increased fall risk due to physical, sensory, cognitive and visual impairments. Footwear has the potential positively impact gait balance of SSs, while poorly fitting or unsupportive footwear is associated falls. Research date focused on older adult populations. Little known about type SSs wear Acute Unit (ASU). The aim this study...

We study a two-unit cold standby system in steady-state. The online unit goes through a finite number of stages of successive degradation preceding the failure. The units are reparable, there is a repairman and two types of maintenance are considered, preventive and corrective. The preventive repair aims to improve the degradation of a unit being operative. The corrective repair is necessary wh...