Results 31 to 40 of about 73,525 (314)

Subsynchronous oscillation and its mitigation of VSC-MTDC with doubly-fed induction generator-based wind farm integration [PDF]

open access: yesArchives of Electrical Engineering, 2021
Wind power integration through the voltage source converter-based high-voltage direct current (VSC-HVDC) system will be a potential solution for delivering large-scale wind power to the “Three-North Regions” of China. However, the interaction between the
Miaohong Su   +3 more
doaj   +1 more source

EIGENVALUE DECOMPOSITION AS A GENERALIZED SYNCHRONIZATION CLUSTER ANALYSIS [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2007
Motivated by the recent demonstration of its use as a tool for the detection and characterization of phase-shape correlations in multivariate time series, we show that eigenvalue decomposition can also be applied to a matrix of indices of bivariate phase synchronization strength.
Allefeld, C., Mueller, M., Kurths, J.
openaire   +3 more sources

Numerical Analysis of a New Mixed Formulation for Eigenvalue Convection-Diffusion Problems [PDF]

open access: yes, 2009
A mixed formulation is proposed and analyzed mathematically for coupled convection-diffusion in heterogeneous medias. Transfer in solid parts driven by pure diffusion is coupled with convection-diffusion transfer in fluid parts. This study is carried out for
Plouraboué, Franck, Pierre, Charles
core   +1 more source

Fault diagnosis of press dies using dynamic mode decomposition of a sound signal

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Although a wide range of machine failure diagnosis methods has been studied for bearings, gears, propellers, etc., there have been few studies on failure diagnosis methods for press machine dies.
Yuki KATO, Rintaro KUMAGAI
doaj   +1 more source

Model Reference Adaptive Control for Milk Fermentation in Batch Bioreactors

open access: yesApplied Sciences, 2020
This paper presents the advanced control theory’s original utilisation to realise a system that controls the fermentation process in batch bioreactors.
Jožef Ritonja   +2 more
doaj   +1 more source

Simple dynamic model of predicting the axle-box acceleration when trains pass through the rupture part of rails

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this paper, the simple dynamic model for calculation of the axle-box acceleration (ABA) is established for conveniently detecting rail breakage on trains.
Hiroyuki AIZAWA   +2 more
doaj   +1 more source

Effect of hoop frequency and impact velocity on BBCOR of metal baseball bat

open access: yesNihon Kikai Gakkai ronbunshu, 2017
The metal bats are more advantageous than the traditional wooden bats due to their specific properties such as improved strength, lower cost, and durability.
Yuu TAKASHIMA   +5 more
doaj   +1 more source

Gradients of quotients and eigenvalue problems [PDF]

open access: yes
Intertwining analysis, optimization, numerical analysis and algebra, computing conjugate co-gradients of real-valued quotients gives rise to eigenvalue problems.
Huhtanen, Marko, Nevanlinna, Olavi
core   +1 more source

Adaptive Finite Element Method for the Maxwell Eigenvalue Problem [PDF]

open access: yes, 2019
In this paper we prove the optimal convergence of a standard adaptive scheme based on edge finite elements for the approximation of the solutions of the eigenvalue problem associated with Maxwell's equations.
Boffi D.   +3 more
core   +1 more source

A nonlocal eigenvalue problem and the stability of spikes for reaction-diffusion systems with fractional reaction rates

open access: yes, 2003
We consider a nonlocal eigenvalue problem which arises in the study of stability of spike solutions for reaction-diffusion systems with fractional reaction rates such as the Sel'kov model, the Gray-Scott system, the hypercycle Eigen and Schuster ...
Winter, M   +3 more
core   +1 more source

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