Results 81 to 90 of about 36,284 (296)

Tunneling in a Time Dependent Setting

, 1996
A standard approach to analyzing tunneling processes in various physical contexts is to use instanton or imaginary time path techniques. For systems in which the tunneling takes place in a time dependent setting, the standard methods are often applicable
Keski-Vakkuri, Esko, Kraus, Per
core   +2 more sources

Current‐Limiting Control Strategies in Variable Capacitance Electrostatic Energy Harvesters

Advanced Intelligent Systems, EarlyView.
This work introduces control strategies for electrostatic energy harvesters that balance energy yield with current limitations. Two approaches are explored: traditional peak‐triggered controls, and newly developed quadrature controls, which use smooth voltage profiles.
Alireza Jalaliankhakshour, Gianluca Rizzello, Antonello Cherubini, Marco Fontana, Giacomo Moretti   +4 more
wiley   +1 more source

Asymptotic solutions of the Vlasov-Poisson-Landau kinetic equations

Современная математика: Фундаментальные направления
The paper is devoted to analytical and numerical study of solutions to the Vlasov–Poisson–Landau kinetic equations (VPLE) for distribution functions with typical length L such that \(\varepsilon = r_D/L \ll 1\), where \(r_D\) stands for the Debye radius.
A. V. Bobylev, I. F. Potapenko
doaj   +1 more source

Form factor approach to dynamical correlation functions in critical models

, 2012
We develop a form factor approach to the study of dynamical correlation functions of quantum integrable models in the critical regime. As an example, we consider the quantum non-linear Schr\"odinger model.
Borodin A, Borodin A, Cardy J L, Caux J S, Caux J S, Gangardt D M, Gangardt D M, Gogolin A O, Haldane F D M, Imambekov A Schmidt T L Glazman L I, J M Maillet, K K Kozlowski, Kerov S, Kitanine N, Kitanine N, Kitanine N, Kitanine N, Kitanine N, Kozlowski K K, Kozlowski K K, Kozlowski K K, Lesage F, Mahan G D, N A Slavnov, N Kitanine, Nozieres P, Okounkov A, Olshanski G, Pereira R G, V Terras, Woynarovich F   +30 more
core   +2 more sources

An Alternative Approach to Spontaneous Photon Triplets Generation

Advanced Physics Research, EarlyView.
Day by day, communication and computing technologies are progressing at a lightning speed, which is particularly true of the quantum version of these technologies (QIST). Increasingly, these technologies are emerging from unusual and sometimes bewildering quantum optical effects, which are based on exotic quantum physical theories.
Serge Gauvin
wiley   +1 more source

Oscillation and asymptotic behavior for a class of delay parabolic differential

Applied Mathematics Letters, 2006
AbstractSome comparative theorems are given for the oscillation and asymptotic behavior for a class of high order delay parabolic differential equations of the form ∂n(u(x,t)−p(t)u(x,t−τ))∂tn−a(t)△u+c(x,t,u)+∫abq(x,t,ξ)f(u(x,g1(t,ξ)),…,u(x,gl(t,ξ)))dσ(ξ)=0,(x,t)∈Ω×R+≡G, where n is an odd integer, Ω is a bounded domain in Rm with a smooth boundary ∂Ω ...
Wang, Qisheng, Ouyang, Zigen, Liao, Jiding   +2 more
openaire   +1 more source

Discrete Element Method Modeling of an Extrusion Process with Recirculation for Dry Manufacturing of Lithium‐Ion Battery Electrodes

Batteries &Supercaps, EarlyView.
On a digitized laboratory extruder, discrete element method modelling is studied, considering two classes of particles representing aggregates of 1) active material and 2) binder and carbon material is studied. Various extrusion scenarios leading to the formation of filaments devoted to the 3D printing of lithium‐ion battery electrodes are studied. The
Pei Sun, Paul Vigneaux, Alejandro A. Franco   +2 more
wiley   +1 more source

Pattern Identification on the Nonlinear Radial Motion of an Oscillating Spherical Bubble Using Neural Networks

Latin American Journal of Solids and Structures
The main goal of this article is to study the oscillatory motion of a spherical gas bubble immersed in a Newtonian liquid subjected to a harmonic pressure excitation. We use the classical Rayleigh-Plesset equation to study the radial motion of the bubble
S. Malvar, R. G. Gontjo, F. R. Cunha
doaj   +1 more source

Solution of the Fokker-Planck equation with a logarithmic potential and mixed eigenvalue spectrum

, 2017
Motivated by a problem in climate dynamics, we investigate the solution of a Bessel-like process with negative constant drift, described by a Fokker-Planck equation with a potential V(x) = - [b \ln(x) + a\, x], for b>0 and ...
Bethe H. A., F. Guarnieri, J. S. Wettlaufer, Levitan B. M., Mansuy R., Pitman J. W., Revuz D., Risken H., Stratonovich R. L., Titchmarsh E. C., W. Moon   +10 more
core   +1 more source

Optimal model‐based design of experiments for parameter precision: Supercritical extraction case

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source