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...

BACKGROUND Postvention services aim to ameliorate distress and reduce future incidences of suicide. The StandBy Response Service is one such service operating in Australia for those bereaved through suicide. Few previous studies have reported estimates or evaluations of the economic impact and outcomes associated with the implementation of bereavement/grief interventions. AIMS To estimate the...

In this paper, we propose a five-transistor (5T) static random access memory (SRAM) that can be read and written reliably with the assistance of read/write circuits. The read/write circuits include a voltage control circuit, a pre-charging circuit and a standby start-up circuit. The voltage control circuit is connected to the sources corresponding to driver transistors of each row memory cells....

generation and distribution with dynamic oscillator switchover M. J. Mueller U. Weiss T. Webel L. C. Alves W. J. Clarke M. Strasser E. Engler G. Cautillo H. Osterndorf J. Schulze This paper describes a fully redundant clock generation and distribution approach with a fully dynamic switchover capability and concurrent repair. It highlights the challenges as the design evolved from a single sourc...

Cascade reliability model is a special type of Stress Strength model. The n Cascade system is a h ierarch ical standby redundancy system, where the standby component taking the place of failed component with decreased value of stress and independently distributed strength. This paper deals with the generalized exponential distribution with cascade system.

In this paper we study the economic and performance evaluation of two non identical unit cold standby systems with hardware failure and human error. After pre specific time known as Maximum operation time (MOT) the system undergoes for PM from operative state. The failure and repair rate times follow exponential distribution. There is a single server who visits the system immediately whenever n...

The service facility or server is the key constituent to keep a system operational for desired period of time. As any eventuality with the system necessitates immediate presence of it (server) so the time point of arrival and treatment of server significantly affects the system performance. This paper works out the steady state behavior of a cold standby system equipped with two similar units a...

Some theoretical evaluation methods of mean time to failure (MTTF) in 2-component standby redundant system with priority have been suggested under the prerequisite that the probability distributions of failure and repair times in each component are respectively specified by the explicit functions. However, this prerequisite might be considerably strict in practical scenes. If we cannot identify...