Timescale separation via Rayleigh quotient in flexible wind turbines: a singularly perturbed approach
Sign Up to like & getrecommendations! Published in 2019 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-019-05158-4
Abstract: The current deep knowledge of the mechanical and structural dynamics of wind turbines has been long considered to optimize their design. From an engineering point of view, this optimized design induces a timescale separation that… read more here.
Keywords: wind turbines; singularly perturbed; timescale separation; separation ... See more keywords
Rayleigh quotient minimization method for symmetric eigenvalue problems
Sign Up to like & getrecommendations! Published in 2019 at "Computational and Applied Mathematics"
DOI: 10.1007/s40314-019-0962-x
Abstract: In this paper, we present a new method, which is referred to as the Rayleigh quotient minimization method, for computing one extreme eigenpair of symmetric matrices. This method converges globally and attains cubic convergence rate… read more here.
Keywords: quotient minimization; method; symmetric eigenvalue; minimization method ... See more keywords
A Rayleigh quotient method for criticality eigenvalue problems in neutron transport
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2019.107120
Abstract: Abstract The alpha- and k-effective eigenproblems describe the criticality and fundamental neutron flux mode of a nuclear system. Traditionally, the alpha-eigenvalue problem has been solved using methods that focus on supercritical systems with large, positive… read more here.
Keywords: quotient method; eigenvalue problems; criticality; neutron transport ... See more keywords
Rayleigh quotient minimization for absolutely one-homogeneous functionals
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DOI: 10.1088/1361-6420/ab0cb2
Abstract: In this paper we examine the problem of minimizing generalized Rayleigh quotients of the form J(u)/H(u), where both J and H are absolutely one-homogeneous functionals. This can be viewed as minimizing J where the solution… read more here.
Keywords: quotient minimization; rayleigh quotient; absolutely one; homogeneous functionals ... See more keywords
Data Denoising Based on Hadamard Matrix Transformation and Rayleigh Quotient Maximization: Application to GNSS Signal Classification
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3184357
Abstract: Global navigation satellite system (GNSS) signal type classification based on machine learning is an effective way to improve urban positioning performance. However, GNSS signal type features extracted are unrelated, and the number of features is… read more here.
Keywords: matrix transformation; classification; rayleigh quotient; hadamard matrix ... See more keywords