Results 21 to 30 of about 10,322,171 (244)

Improving Clustering Accuracy of K-Means and Random Swap by an Evolutionary Technique Based on Careful Seeding

open access: yesAlgorithms, 2023
K-Means is a “de facto” standard clustering algorithm due to its simplicity and efficiency. K-Means, though, strongly depends on the initialization of the centroids (seeding method) and often gets stuck in a local sub-optimal solution.
Libero Nigro, Franco Cicirelli
doaj   +1 more source

Simulation modelling of QoS enhancements in IEEE, 802. 11 networks and the effects of channel modelling [PDF]

open access: yes, 2011
In this work the impact of the channel effects in modelling EDCA and DCF protocols of the IEEE 802.11 Medium Access Control (MAC) protocol on overall network performance is ...
Mundangepfupfu, Tinotenda Leslie
core   +1 more source

Towards a theoretical framework for human performance modelling within manufacturing systems design [PDF]

open access: yes, 2005
The performance of direct workers has a significant impact on the competitiveness of many manufacturing systems. Unfortunately, system designers are ill equipped to assess this impact during the design process.
Baines, Tim S.   +9 more
core   +1 more source

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

open access: yesBatteries, 2016
Lithium-ion (Li-ion) batteries are complex energy storage devices with their performance behavior highly dependent on the operating conditions (i.e., temperature, load current, and state-of-charge (SOC)).
Daniel-Ioan Stroe   +3 more
doaj   +1 more source

Optimal control of thermal and mechanical loads in activation processes of mechanical components

open access: yesApplied Mathematics in Science and Engineering
This paper develops a mathematical framework that aims to control the temperature and rotational speed in the activation process of a gas turbine in an optimal way.
Nicolai Friedlich   +2 more
doaj   +1 more source

A New Sixth-Order Finite Difference Compact Reconstruction Unequal-Sized WENO Scheme for Nonlinear Degenerate Parabolic Equations

open access: yesJournal of Mathematics, 2022
In this paper, a new sixth-order finite difference compact reconstruction unequal-sized weighted essentially nonoscillatory (CRUS-WENO) scheme is designed for solving the nonlinear degenerate parabolic equations on structured meshes.
Liang Li, Yan Zhang, Jun Zhu
doaj   +1 more source

Customized Woven Carbon Fiber Electrodes for Bioelectrochemical Systems—A Study of Structural Parameters

open access: yesFrontiers in Chemical Engineering, 2022
Commercial carbon fiber (CF) fabrics are popular electrode materials for bioelectrochemical systems (BES), but are usually not optimized for the specific application.
Liesa Pötschke   +10 more
doaj   +1 more source

HIPERTRANS: High performance transport network modelling and simulation

open access: yes, 2000
HIPERTRANS (High Performance Transport network modelling and Simulation) is a fast and visually representative simulator that can predict traffic on a given urban road network.
Kalantery, N., Ijaha, S., Winter, S.
core   +1 more source

Discrete Event Simulation for Performance Modelling in Healthcare: A Review of the Literature [PDF]

open access: yes, 2009
Discrete Event Simulation (DES) has been widely used in modelling healthcare systems for many years and a simple citation analysis shows that the number of papers published has increased markedly since 2004.
Gunal, M, Pidd, M
core   +4 more sources

Modelling the Impact of Cloud Storage Heterogeneity on HPC Application Performance

open access: yesComputation
Moving high-performance computing (HPC) applications from HPC clusters to cloud computing clusters, also known as the HPC cloud, has recently been proposed by the HPC research community.
Jack Marquez, Oscar H. Mondragon
doaj   +1 more source

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