Results 31 to 40 of about 588,921 (316)

The complexity of optimization problems [PDF]

open access: yesJournal of Computer and System Sciences, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Optimization of through-bolt steel beam connection to CFST column reinforced with rib plates using RSM method and MCEO algorithm [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
Today, one of the most important engineering requirements is to ensure optimal design with best possible seismic performance of structures. To this end, the present paper aims to apply the optimization process for the design of the through-bolt steel ...
Khadijeh Ghanbari Soumeh   +1 more
doaj   +1 more source

A Study on Wireless Charging for Prolonging the Lifetime of Wireless Sensor Networks

open access: yesSensors, 2017
Wireless charging is an important issue in wireless sensor networks, since it can provide an emerging and effective solution in the absence of other power supplies.
Weijian Tu   +3 more
doaj   +1 more source

An Optimization Problem for Lattices [PDF]

open access: yesExperimental Mathematics, 2013
We present theoretical and computational results concerning an optimization problem for lattices, related to a generalization of the concept of dual lattices.
Lajos Hajdu   +3 more
openaire   +1 more source

Optimizing the Capacity of Cognitive Radio Networks with Power Control and Variable Spectrum Allocation

open access: yesTransport and Telecommunication, 2018
Cognitive Radio Networks (CRN) were introduced as a means to more efficiently reuse the licensed radio frequency spectrum. One of their salient features is the ability of unlicensed nodes to dynamically adapt their radio parameters according to their ...
Benghabrit Nawel, Kaddour Mejdi
doaj   +1 more source

Comparison of recent metaheuristic optimization algorithms to solve the SHE optimization problem in MLI

open access: yes, 2022
Multilevel inverters (MLIs) are one of the most popular topics of power electronics. Selective harmonic elimination (SHE) method is used to eliminate low-order harmonics in the MLI output voltage by determining the optimum switching angles.
Mirjalili, S, Ürgün, S, Yiğit, H
core   +1 more source

Solution of the inverse problem of tracer tests interpretation results for oil reservoirs in the presence of low resistance channels

open access: yesВестник Самарского университета: Естественнонаучная серия
Tracer tests of oil reservoirs have become widely used to assess the parameters of low resistance channels, leading to premature increasing of production water cut.
Konstantin M. Fedorov   +4 more
doaj   +1 more source

A Fast Feature Selection Algorithm Based on Swarm Intelligence in Acoustic Defect Detection

open access: yesIEEE Access, 2018
Feature selection plays an important role in data mining and pattern recognition. However, most existing feature selection methods suffer from stagnation in local optimal and/or high computational cost.
Tao Zhang   +3 more
doaj   +1 more source

Discrete Particle Swarm Optimization for the minimum labelling Steiner tree problem

open access: yes, 2008
Particle Swarm Optimization is an evolutionary method inspired by the social behaviour of individuals inside swarms in nature. Solutions of the problem are modelled as members of the swarm which fly in the solution space.
N. Mladenović   +8 more
core   +1 more source

A Two-Step Strategy for System Identification of Civil Structures for Structural Health Monitoring Using Wavelet Transform and Genetic Algorithms

open access: yesApplied Sciences, 2017
Nowadays, the accurate identification of natural frequencies and damping ratios play an important role in smart civil engineering, since they can be used for seismic design, vibration control, and condition assessment, among others.
Carlos Andres Perez-Ramirez   +6 more
doaj   +1 more source

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