In view of the challenges posed by nature expansive soil to structural stability which makes it necessary in some cases improve soils before structures can be placed on them, there is a need investigate modern trends ground improvement techniques order determine their reliability. This study thus aimed at using reliability based approach analyze use polyvinyl alcohol (PVA) combination with 1,2,...

1. Abstract This study proposes the improvement method of computational efficiency for the hybrid-type multiobjective particle swarm optimization method (MOPSO) that the authors developed for the reliability-based multiobjective optimization (RBMO). The hybrid MOPSO integrates the constraint satisfaction technique using gradient information of constraints with a concept of the single-loop-singl...

The correct design of the engagement pair (mainrotor and gaterotor) profile is the foundation to improve the operating reliability of a single screw compressor. An introduction to take a straight line enveloping pair as the engagement pair of the main machine is presented after analysing the present engagement pair. A complete analysis is also made of the hydrodynamic lubrication property and i...

attention in recent times due to constraints associated with conventional power generation and new advancements in DG technologies .The need to operate the power system economically and with optimum levels of reliability has further led to an increase in interest in Distributed Generation. However it is important to place Distributed Generator on an optimum location so that the purpose of loss ...

Background: An electronic device consists of electronic components attached on a circuit board. Reliability of such a device is limited to fatigue properties of the components as well as of the board. Printed circuit board (PCB) consists of conducting traces and vertical interconnect access (via) out of copper embedded in a composite material. Usually the composite material is fiber reinforced ...

Determining battery lifetimes is beset with difficulties. Performance data are not generally available and costly to generate since large numbers of batteries must be tested to destruction. Furthermore, the required test period to verify the predictions is often greater than commercial decision lead time. While the reliability predictions in the following section are very useful, they are desig...