Results 41 to 50 of about 283,093 (346)
Ultra-thin low frequency perfect sound absorber with high ratio of active area [PDF]
, 2018 A concept of ultra-thin low frequency perfect sound absorber is proposed and demonstrated experimentally. To minimize non-linear effects, an high ratio of active area to total area is used to avoid large localized amplitudes.
Aurégan, Yves
core +4 more sources
Effects of inertia on the steady-shear rheology of disordered solids [PDF]
, 2015 We study the finite-shear-rate rheology of disordered solids by means of molecular dynamics simulations in two dimensions. By systematically varying the damping magnitude $\zeta$ in the low-temperature limit, we identify two well defined flow regimes ...
Barrat, Jean-Louis +2 more
core +4 more sources
Errors in Estimating Modal Damping Ratio.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995 The purpose of this paper is to investigate the effect of measurement errors on the modal damping ratio. Errors in estimating modal damping ratio are derived for various curve-fitting methods. For the iterative method, errors in estimating modal damping ratio are induced by bias errors in the frequency response function.
Makoto Watanabe, Michiharu Okano
openaire +2 more sources
Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications
FEBS Open Bio, EarlyView.This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley +1 more source
Optimization of the damped quantum search [PDF]
, 2012 The damped quantum search proposed in [A. Mizel, Phys. Rev. Lett., 102 150501 (2009)] was analyzed by calculating the highest possible probability of finding the target state in each iteration.
Banzon, Ronald +2 more
core
Amplitude Damping for single-qubit System with single-qubit mixed-state Environment
, 2007 We study a generalized amplitude damping channel when environment is initially in the single-qubit mixed state. Representing the affine transformation of the generalized amplitude damping by a three-dimensional volume, we plot explicitly the volume ...
D K Park +13 more
core +1 more source
Seismology of Standing Kink Oscillations of Solar Prominence Fine Structures [PDF]
, 2010 We investigate standing kink magnetohydrodynamic (MHD) oscillations in a prominence fine structure modeled as a straight and cylindrical magnetic tube only partially filled with the prominence material, and with its ends fixed at two rigid walls ...
Abramowitz +34 more
core +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source
Nihon Kikai Gakkai ronbunshu, 2021 It is desired that the forced self-excited vibrations of structures subjected to the vortex excitation and the long-period earthquake are quenched. Therefore, this paper deals with the vibration control of self-excited system and forced self-excited ...
Yutaka YOSHITAKE +5 more
doaj +1 more source
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source