Direct lagrange multiplier updates in topology optimization revisited
Sign Up to like & getrecommendations! Published in 2020 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-020-02740-y
Abstract: In topology optimization, the bisection method is typically used for computing the Lagrange multiplier associated with a constraint. While this method is simple to implement, it leads to oscillations in the objective and could possibly… read more here.
Keywords: lagrange multiplier; topology optimization; method; topology ... See more keywords
The direct method of Lyapunov for nonlinear dynamical systems with fractional damping
Sign Up to like & getrecommendations! Published in 2020 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-020-05962-3
Abstract: In this paper, we introduce a generalization of Lyapunov’s direct method for dynamical systems with fractional damping. Hereto, we embed such systems within the fundamental theory of functional differential equations with infinite delay and use… read more here.
Keywords: lyapunov; direct method; systems fractional; fractional damping ... See more keywords
Iterative filtering as a direct method for the decomposition of nonstationary signals
Sign Up to like & getrecommendations! Published in 2020 at "Numerical Algorithms"
DOI: 10.1007/s11075-019-00838-z
Abstract: The Iterative Filtering method is a technique developed recently for the decomposition and analysis of nonstationary and nonlinear signals. In this work, we propose two alternative formulations of the original algorithm which allows to transform… read more here.
Keywords: direct method; filtering direct; method decomposition; method ... See more keywords
A direct method to estimate common acoustical poles in room acoustics
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115568
Abstract: Abstract Many acoustic applications adopt the common-acoustical-pole and zero model while only the common acoustical poles (CAP) are needed. This paper proposes a direct method to estimate CAP solely. An approach to determine the orders… read more here.
Keywords: acoustics; common acoustical; direct method; acoustical poles ... See more keywords
A modal space based direct method for vortex-induced vibration prediction of flexible risers
Sign Up to like & getrecommendations! Published in 2018 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2018.01.059
Abstract: Abstract A modal space based direct method is developed for vortex-induced vibration (VIV) prediction of flexible risers. A VIV response solution model is established in modal space, consisting of a hydrodynamic force equation and a… read more here.
Keywords: direct method; space; modal space; space based ... See more keywords
A direct method to access various functional arylalkoxysilanes by Rh-catalysed intermolecular C–H silylation of alkoxysilanes
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d2sc03727k
Abstract: Efficient protocols for intermolecular C–H silylations of unactivated arenes and heteroarenes with HMe2SiOEt are disclosed. The silylations are catalysed by a Rh-complex (0.5 mol%) derived from commercially available [Rh(coe)2Cl]2 and (S,S)-Ph-BPE in the presence of… read more here.
Keywords: various functional; access various; silylation; functional arylalkoxysilanes ... See more keywords
A direct method for reconstructing inclusions and boundary conditions from electrostatic data
Sign Up to like & getrecommendations! Published in 2021 at "Applicable Analysis"
DOI: 10.1080/00036811.2021.1991326
Abstract: In this paper, we will discuss the use of a Sampling Method to reconstruct impenetrable inclusions from Electrostatic Cauchy data. We consider the case of a perfectly conducting and impedance inclusion. In either case, we… read more here.
Keywords: direct method; method reconstructing; boundary conditions; method ... See more keywords
A direct method to Frobenius norm-based matrix regression
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Computer Mathematics"
DOI: 10.1080/00207160.2019.1668558
Abstract: Regression analysis has been widely used for face recognition. This paper mainly discuss the following regularized matrix regression problem: Given a set of k image matrices and an image matrix find such that where are… read more here.
Keywords: frobenius norm; direct method; matrix regression; regression ... See more keywords
A direct method of nuclear pulse shape discrimination based on principal component analysis and support vector machine
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/14/06/p06020
Abstract: Fault diagnosis and particle discrimination can be fundamentally solved as a case of pulse shape discrimination (PSD). The classical methods of PSD are inconvenient or not effective when more than two pulse shapes need to… read more here.
Keywords: direct method; nuclear pulse; shape discrimination; pulse shape ... See more keywords
A direct method to determine the adsorbed dyes on adsorbent via processing of diffuse reflectance spectroscopy data
Sign Up to like & getrecommendations! Published in 2018 at "Materials Research Express"
DOI: 10.1088/2053-1591/aae3f2
Abstract: In this communication, we have put forward diffuse reflectance spectroscopy (DRS; measured from ultraviolet to near-infrared region) as an efficient tool for the evident confirmation of pollutant dye adsorption on the surface of activated charcoal… read more here.
Keywords: diffuse reflectance; direct method; reflectance spectroscopy; spectroscopy ... See more keywords
Performance Evaluation of Parallel Finite-Element Eddy-Current Analysis Using Direct Method as Subdomain Solver
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2019.2953610
Abstract: An eddy-current analysis ( $A$ - $\phi $ method) based on a domain decomposition method is proposed. A conjugate orthogonal conjugate gradient with an incomplete Cholesky factorization method is generally applied to solve the subdomain… read more here.
Keywords: tex math; eddy current; current analysis; method ... See more keywords