this paper proposes an efficient algorithm based on memetic algorithm (ma) for a redundancy allocation problem without component mixing (rapcm) in a series-parallel system when the redundancy strategy can be chosen for individual subsystems. majority of the solution methods for the general rapcm assume that the type of a redundancy strategy for each subsystem is pre-determined and known a prior...

Redundancy allocation is one of the common techniques to increase the reliability of the bridge systems. Many studies on the general redundancy allocation problems assume that the redundancy strategy for each subsystem is predetermined and fixed. In general, active redundancy has received more attention in the past. However, in real world, a particular system design contains both active and col...

We present techniques that allow strength reduction to be performed concurrently with partial redundancy elimination in the SSAPRE framework. By sharing the characteristics inherent to SSAPRE, the resulting strength reduction algorithm exhibits many interesting attributes. We compare various aspects of the new strength reduction algorithm with previous strength reduction algorithms. We also out...

grain discoloration caused by fungi agents, in crop season that the mature grain stage coincides with rain, it causes many damages. in this research effect of paddy discoloration of three varieties (hashemi, gohar and khazar) and disease index in two levels (high and low disease index levels) on grain apparent quality, milling properties and grain bending strength was investigated in a factoria...

purpose: military personnel are expected to maintain the highest possible level of physical   fitness to do their duties. several factors including body composition and body mass index   affect the level of their physical preparedness. the current study was designed to investigate   the effect of body composition and body mass index in the level of physical preparedness of   iranian military pe...

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.

conclusions the current study revealed that a significant difference existed in hgs among the low, medium, and high bmi groups. a positive correlation existed between hgs and weight and height, while sex was the most significant factor affecting hgs. these findings can serve as a reference to assess hgs prediction, whereby the sex effect should be considered. results the results showed that the...