Results 1 to 10 of about 712,487 (278)

Multi-objective Redundancy Allocation Problem with weighted-k-out-of-n subsystems [PDF]

open access: yesHeliyon, 2019
Redundancy Allocation Problem (RAP) is one of the most practical problems in the reliability area. Many assumptions have been added to RAP in recent years. The aim was to better represent real-world problems with RAP.
Mani Sharifi   +2 more
doaj   +2 more sources

Reliability - Redundancy Allocation in Process Graphs

open access: yesChemical Engineering Transactions, 2018
Process graphs (P-graphs) have been proven to be useful in identifying optimal structures of process systems and business processes. The provision of redundant critical units can significantly reduce operational risk.
Zoltan Sule   +2 more
doaj   +2 more sources

Active-Redundancy Allocation in Systems [PDF]

open access: yesIEEE Transactions on Reliability, 2004
An effective way of improving the reliability of a system is the allocation of active redundancy. Let $X_{1}$, $X_{2}$ be independent lifetimes of the components $C_{1}$ and $C_{2}$, respectively, which form a series system. Let denote $U_{1} = \min ( \max (X_{1},X),X_{2})$ and $U_{2} = \min (X_{1},\max (X_{2},X))$, where X is the lifetime of a ...
Rosario Romera   +2 more
exaly   +4 more sources

Optimization Methods for Redundancy Allocation in Large Systems [PDF]

open access: yesVietnam Journal of Computer Science, 2020
This paper addresses the issue of optimal allocation of spare modules in large series-redundant systems in order to obtain a required reliability under cost constraints. Both cases of active and standby redundancy are considered.
Florin Leon   +2 more
doaj   +3 more sources

Bit Allocation in Spatially Correlated Sensor Fields: A Comparative Study of Contribution-Aware and Heuristic Approaches [PDF]

open access: yesSensors
Bit allocation is a core design problem in spatially correlated sensor fields under limited communication resources since per-sensor bit depth determines quantization fidelity and thus the quality of acquired information.
Sang-Seon Byun
doaj   +2 more sources

A Generalized Multiobjective Reliability Redundancy Allocation With Uncertainties

open access: yesIEEE Access, 2023
Multiobjective reliability-redundancy allocation problem (MORRAP) needs to maximize system reliability and minimize cost, weight, and volume with underlining constraints.
Zubair Ashraf   +5 more
doaj   +2 more sources

An approach for solving constrained reliability-redundancy allocation problems using cuckoo search algorithm

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2015
The main goal of the present paper is to present a penalty based cuckoo search (CS) algorithm to get the optimal solution of reliability – redundancy allocation problems (RRAP) with nonlinear resource constraints.
Harish Garg
doaj   +3 more sources

Phytoplankton dominance alters basal energy pathways and food web structure in eutrophic shallow lakes [PDF]

open access: yesiScience
Summary: Eutrophication is widely recognized for increasing primary production, yet how changes in basal energy allocation reorganize food web architecture and stability remains insufficiently resolved.
Jiayi Xie   +8 more
doaj   +2 more sources

Solving Redundancy Allocation Problems using Jaya Algorithm [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
Reliability-based design is related to the performance analysis of engineering systems. The redundancy allocation problem is one of the most common problems in the reliability-based design approach.
B. Aswin   +2 more
doaj   +1 more source

Presenting an Exact Solution Method to Optimize the Bi-Objective Problem of Reliability and Cost of Redundancy Allocation in the Satellite Attitude Determination and Control System [PDF]

open access: yesچشم‌انداز مدیریت صنعتی, 2023
The redundancy allocation problem is to find an optimal allocation of redundant components by considering a set of different constraints. Solving these problems is of great interest to various researchers due to its high mathematical complexity.
Akbar Mansouri, Akbar Alem Tabriz
doaj   +1 more source

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