Results 11 to 20 of about 73,525 (314)

Multiple eigenvalue sensitivity analysis

open access: yesLinear Algebra and its Applications, 1990
Eigenvalues are very important in the studies of stability and performances of many dynamical systems. The behavior of constant eigenvalues is quite well understood. However, the behavior of eigenvalues that are dependent on physical parameters, particularly for the cases of multiple parameters, is still little known. This paper presents results on the
Sun, Ji-guang
openaire   +2 more sources

Small-Signal Stability Analysis of Photovoltaic-Hydro Integrated Systems on Ultra-Low Frequency Oscillation

open access: yesEnergies, 2020
In recent years, ultralow-frequency oscillation has repeatedly occurred in asynchronously connected regional power systems and brought serious threats to the operation of power grids.
Sijia Wang   +3 more
doaj   +1 more source

Eigenvalue analysis for metamorphic detection

open access: yesJournal of Computer Virology and Hacking Techniques, 2013
Metamorphic malware changes its internal structure on each infection while maintaining its function. Although many detection techniques have been proposed, practical and effective metamorphic detection remains a difficult challenge. In this paper, we analyze a previously proposed eigenvector-based method for metamorphic detection.
Sayali Deshpande   +2 more
openaire   +3 more sources

A New Hybrid Conjugate Gradient Method Based on Eigenvalue Analysis for Unconstrained Optimization Problems [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2018
In this paper, two extended three-term conjugate gradient methods based on the Liu-Storey ({\tt LS}) conjugate gradient method are presented to solve unconstrained optimization problems.
Farzad Rahpeymaii, Majid Rostami
doaj   +1 more source

Comparison of Numerical Methods and Open-Source Libraries for Eigenvalue Analysis of Large-Scale Power Systems

open access: yesApplied Sciences, 2020
This paper discusses the numerical solution of the generalized non-Hermitian eigenvalue problem. It provides a comprehensive comparison of existing algorithms, as well as of available free and open-source software tools, which are suitable for the ...
Georgios Tzounas   +3 more
doaj   +1 more source

Dynamic Interactions between Parallel Grid-Forming Inverters in a Microgrid

open access: yesApplied Sciences, 2023
The potential instability issues caused by the dynamic interactions between parallel grid-forming inverters are examined. The approach adopted for analysis is s-domain admittance-based eigenvalue and mode shape analysis.
Sulaiman Z. Almutairi
doaj   +1 more source

Eigenvalue Based Analysis of Soliton Fusion Phenomenon in the Frame Work of Nonlinear Schrödinger Equation

open access: yesIEEE Photonics Journal, 2017
One mechanism to generate optical rogue waves is the soliton fusion phenomenon. The impact of initial parameters such as pulse spacing, frequency separation, and phase difference between adjacent soliton shape pulses for soliton fusion phenomenon has ...
Gihan Weerasekara, Akihiro Maruta
doaj   +1 more source

Eigenvalue enclosures and exclosures for non-self-adjoint problems in hydrodynamics [PDF]

open access: yes, 2010
In this paper we present computer-assisted proofs of a number of results in theoretical fluid dynamics and in quantum mechanics. An algorithm based on interval arithmetic yields provably correct eigenvalue enclosures and exclosures for non-self-adjoint ...
Langer, M.   +10 more
core   +1 more source

Research on Eigenvalue Analysis Method in Multi-Surface Metal Shell Vibratory Gyro

open access: yesIEEE Access, 2019
The metal shell vibratory gyro is a branch of Coriolis vibratory gyro, which has the advantage of overload resistance, simplify structure, low cost, wide range and long life. This paper focuses on multi-surface metal resonator.
Ning Liu, Zhong Su
doaj   +1 more source

Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method

open access: yesInternational Journal of Mechanical System Dynamics, 2023
The linear multibody system transfer matrix method (LMSTMM) provides a powerful tool for analyzing the vibration characteristics of a mechanical system.
Jinghong Wang   +5 more
doaj   +1 more source

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