Results 31 to 40 of about 41,109 (223)

A Simple Multi-Directional Absorbing Layer Method to Simulate Elastic Wave Propagation in Unbounded Domains

open access: yes, 2010
The numerical analysis of elastic wave propagation in unbounded media may be difficult due to spurious waves reflected at the model artificial boundaries.
Gandomzadeh, Ali   +2 more
core   +3 more sources

Dynamical pattern formations in two dimensional fluid and Landau pole bifurcation [PDF]

open access: yes, 2014
A phenomenological theory is proposed to analyze the asymptotic dynamics of perturbed inviscid Kolmogorov shear flows in two dimensions. The phase diagram provided by the theory is in qualitative agreement with numerical observations, which include three
Barré, Julien   +3 more
core   +5 more sources

Sharp estimates for the number of degrees of freedom for the damped-driven 2D Navier--Stokes equations

open access: yes, 2005
We derive upper bounds for the number of asymptotic degrees (determining modes and nodes) of freedom for the two-dimensional Navier--Stokes system and Navier-Stokes system with damping.
Ilyin, Alexei A., Titi, Edriss S.
core   +1 more source

RIGID AND NON-RIGID KINEMATIC EXCITATION FOR MULTIPLY-SUPPORTED SYSTEM: ONCE MORE ABOUT THE CONTRIBUTION OF DAMPING TO THE DYNAMIC LOADS IN SEISMIC ANALYSIS

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2018
Development of linear equations of motion for seismic analysis is discussed in the paper. The paper continues the discussion: the author does not agree with colleagues putting damping matrix into the right-hand part of the equation of motion describing ...
Alexander G. Tyapin
doaj   +1 more source

Performance of Viscous Damping in Inelastic Seismic Analysis of Moment-Frame Buildings [PDF]

open access: yes, 2018
This report investigates the performance of several viscous damping formulations in the inelastic seismic response of moment-frame buildings. The evaluation employs a detailed model of a 20-story steel building.
Hall, John F.
core  

Rayleigh scattering and atomic dynamics in dissipative optical lattices [PDF]

open access: yes, 2003
We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals [S. Guibal et al., Phys. Rev. Lett. 78, 4709 (1997); C. Jurczak et al., Phys. Rev. Lett.
Carminati, F.-R.   +4 more
core   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Identification of Torsionally Coupled Shear Buildings Models Using a Vector Parameterization

open access: yesShock and Vibration, 2016
A methodology to estimate the shear model of seismically excited, torsionally coupled buildings using acceleration measurements of the ground and floors is presented.
Antonio Concha, Luis Alvarez-Icaza
doaj   +1 more source

The Jarzynski equality in van der Pol and Rayleigh oscillators

open access: yes, 2011
We have studied the Jarzynski equality (JE) in van der Pol and Rayleigh oscillators which are typical deterministic non-Hamiltonian models, but not expected to rigorously satisfy the JE because they are not microscopically reversible.
Hasegawa, Hideo
core   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

open access: yesAdvanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim   +3 more
wiley   +1 more source

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