Results 31 to 40 of about 627,308 (290)

Analytical Study of Nonlinear Flexural Vibration of a Beam with Geometric, Material and Combined Nonlinearities

open access: yesVibration
This article explores the nonlinear vibration of beams with different types of nonlinearities. The beam vibration was modeled using Hamilton’s principle, and the equation of motion was solved using method of multiple time scales.
Yoganandh Madhuranthakam   +1 more
doaj   +1 more source

Optimization of geometrically nonlinear truss structures under dynamic loading

open access: yesREM: International Engineering Journal, 2020
The goal of this article is to present the formulation of the optimization problem of truss structures with geometric nonlinearity under dynamic loads and provide examples of this problem.
Larissa Bastos Martinelli   +1 more
doaj   +1 more source

Geometric Nonlinearity in Structural Behavior

open access: yes, 2023
This book provides a fundamental understanding of the analytic process involved in solving complex problems, such as the influence of geometric nonlinearity on buckling, vibration, and second-order displacements.
DeLuzio, Anthony James
core   +1 more source

Size-dependent buckling instability and recovery of beam-like, architected microstructures

open access: yesMaterials & Design, 2019
Beam-like, architected microstructures (BAMs) can be used in various functional applications, such as micro-electro-mechanical systems (MEMS), energy harvesting, actuation, etc.
Pengcheng Jiao, Amir H. Alavi
doaj   +1 more source

Optical nonlinearity enhancement via geometric anisotropy

open access: yes, 1997
We investigate the effects of geometric anisotropy on the optical nonlinearity of metal nanocrystals in a dielectric host. By invoking the effective medium approximation for anisotropic composite media, we calculate the spectral density as a function of ...
Yu, K. W.   +3 more
core   +1 more source

Geometric homogeneity and controllability of nonlinear systems [PDF]

open access: yes42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004
We followed-up a suggestion from Bullo and Lewis concerning the importance of geometric homogeneity for mechanical systems, that shows the controllability results for a large class of mechanical systems with drift can be recovered by considering a class of nonlinear dynamical systems satisfying certain homogeneity conditions.
Patricio A. Vela, Joel W. Burdick
openaire   +3 more sources

On the Quantization of AB Phase in Nonlinear Systems

open access: yesEntropy, 2022
Self-intersecting energy band structures in momentum space can be induced by nonlinearity at the mean-field level, with the so-called nonlinear Dirac cones as one intriguing consequence.
Xi Liu, Qing-Hai Wang, Jiangbin Gong
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

NONLINEAR STABILITY OF SINUSOIDAL VELAROIDAL SHELL

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2018
The nonlinear analysis of thin-walled shells is not a rarity, particularly the nonlinear strength one. Many works are devoted to linear and nonlinear analyses of shells of classical form: cylindrical, spherical, hemispherical, shallow, conical.
MATHIEU GIL-OULBE   +2 more
doaj   +1 more source

Residual component analysis of hyperspectral images - Application to joint nonlinear unmixing and nonlinearity detection [PDF]

open access: yes, 2014
This paper presents a nonlinear mixing model for joint hyperspectral image unmixing and nonlinearity detection. The proposed model assumes that the pixel reflectances are linear combinations of known pure spectral components corrupted by an additional ...
Altmann, Yoann   +10 more
core   +1 more source

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