Results 41 to 50 of about 81,533 (253)

An Improved Gray Wolf Optimizer MPPT Algorithm for PV System With BFBIC Converter Under Partial Shading

open access: yesIEEE Access, 2020
Based on the boost full bridge isolated converter (BFBIC) topology and considering the sudden changes in the external environment, a global maximum power point tracking (GMPPT) control strategy based on an improved gray wolf optimizer (IGWO) algorithm is
Ke Guo   +4 more
doaj   +1 more source

Digitization of sunspot drawings by Sp\"orer made in 1861-1894 [PDF]

open access: yes, 2014
Most of our knowledge about the Sun's activity cycle arises from sunspot observations over the last centuries since telescopes have been used for astronomy. The German astronomer Gustav Sp\"orer observed almost daily the Sun from 1861 until the beginning
Arlt, Rainer   +2 more
core   +1 more source

CLUSTERIZATION OF DATA ARRAYS BASED ON THE MODIFIED GRAY WOLF ALGORITHM

open access: yesRadio Electronics, Computer Science, Control, 2023
Context. The task of clustering arrays of multidimensional data, the main goal of which is to find classes of observations that are homogeneous in the sense of the accepted metric, is an important part of the intelligent data analysis of Data Mining. From a computational point of view, the problem of clustering turns into the problem of finding local ...
A. Yu. Shafronenko   +2 more
openaire   +3 more sources

Monitoring Model of Concrete Dam Deformation Based on Gray Wolf Optimization Algorithm

open access: yesRenmin Zhujiang, 2021
Dam deformation is one of the most reliable indicators that can reflect the actual condition of concrete dam.Modeling and analysis of dam deformation monitoring data is an effective way to reflect the operation behavior of concrete dam and seek for the ...
CHEN Shuyun   +3 more
doaj  

QPSK Block-Modulation Codes for Unequal Error Protection [PDF]

open access: yes, 1995
Unequal error protection (UEP) codes find applications in broadcast channels, as well as in other digital communication systems, where messages have different degrees of importance.
Lin, Shu, Morelos-Zaragoza, Robert H
core   +2 more sources

Triangular Position Multi-Bolt Layout Structure Optimization

open access: yesApplied Sciences, 2023
Stress concentration often occurs around bolt holes in load-bearing joint structures of large complex equipment, ships, aerospace and other complex machinery fields, which is an important mechanical factor leading to the failure of joint structures.
Xiaohan Lu   +5 more
doaj   +1 more source

Applying the Cheetah Algorithm to optimize resource allocation in the fog computing environment

open access: yesApplied Artificial Intelligence
This study investigates the application of heuristic and meta-heuristic algorithms to address resource allocation challenges in Internet of Things (IoT) applications within fog computing environments.
Fatemeh Arvaneh   +2 more
doaj   +1 more source

Yarn unevenness prediction using generalized regression neural network under various optimization algorithms

open access: yesJournal of Engineered Fibers and Fabrics, 2022
Unevenness is one of the important parameters for evaluating yarn quality, but the current prediction accuracy of yarn unevenness is low. One of the important reasons is that there are few sample dataset for yarn unevenness prediction.
Hao Jiang   +3 more
doaj   +1 more source

Efficient numerical simulation of granular matter using the Bottom-To-Top Reconstruction method

open access: yes, 2006
The numerical simulation of granular systems of even moderate size is a challenging computational problem. In most investigations, either Molecular Dynamics or Event-driven Molecular Dynamics is applied.
Poeschel, Thorsten, Schwager, Thomas
core   +1 more source

Application of the Gray Wolf Optimization Algorithm in Active Disturbance Rejection Control Parameter Tuning of an Electro-Hydraulic Servo Unit

open access: yesMachines, 2022
A valve-controlled hydraulic cylinder system has the characteristics of uncertainty and time-variance, and the electro-hydraulic servo unit encounters shock, vibration, and other external interference when working, which seriously affect the stability of
Bingwei Gao   +3 more
doaj   +1 more source

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