Results 41 to 50 of about 11,684,150 (395)

Density Scaling and Dynamic Correlations in Viscous Liquids [PDF]

, 2009
We use a recently proposed method [Berthier L.; Biroli G.; Bouchaud J.P.; Cipelletti L.; El Masri D.; L'Hote D.; Ladieu F.; Pierno M. Science 2005, 310, 1797.] to obtain an approximation to the 4-point dynamic correlation function from derivatives of the
Casalini, R., Fragiadakis, D., Roland, C. M.   +2 more
core   +1 more source

General decay for weak viscoelastic Kirchhoff plate equations with delay boundary conditions

Boundary Value Problems, 2017
We consider a weak viscoelastic Kirchhoff plate model with time-varying delay in the boundary. By using a suitable energy and Lyapunov function, we obtain a decay rate for the energy, which depends on the behavior of g and α.
Sun-Hye Park, Jum-Ran Kang
doaj   +1 more source

Spin dynamics in lightly doped La 2-x Sr x CuO 4 : Relaxation function within the t-J model [PDF]

, 2004
The relaxation function theory of doped two-dimensional $S=1∕2$ Heisenberg antiferromagnetic (AF) systems in the paramagnetic state is presented taking into account the hole subsystem as well as both the electron and AF correlations.
I. Larionov
semanticscholar   +1 more source

Universal relaxation function in nonextensive systems

, 2003
We have derived the dipolar relaxation function for a cluster model whose volume distribution was obtained from the generalized maximum Tsallis nonextensive entropy principle.
Abe S., Beck C., de Gennes P. G., F Brouers, Jonscher A. K., Julien R., O Sotolongo-Costa, Ramakrishnan T. V., Sotolongo-Costa O., Tsallis C., Weron K., Weron K.   +11 more
core   +1 more source

General and optimal decay rates for a system of wave equations with damping and a coupled source term

AIMS Mathematics
In this article, we aim to investigate the decay characteristics of a system consisting of two viscoelastic wave equations with Dirichlet boundary conditions, where the dispersion term and nonlinear weak damping term are taken into account.
Qian Li , Yanyuan Xing
doaj   +1 more source

Evolution of the potential-energy surface of amorphous silicon

, 2010
The link between the energy surface of bulk systems and their dynamical properties is generally difficult to establish. Using the activation-relaxation technique (ART nouveau), we follow the change in the barrier distribution of a model of amorphous ...
David J. Wales, François Schiettekatte, H. Vogel, Houssem Kallel, K. A. Dill, Normand Mousseau   +5 more
core   +1 more source

The effect of age and initial compression on the force relaxation response of the femur in elderly women

Royal Society Open Science, 2022
The effect of force amount, age, body weight and bone mineral density (BMD) on the femur's force relaxation response was analysed for 12 donors (age: 56–91 years). BMD and fracture load, FL, were estimated from clinical CT images.
Saulo Martelli
doaj   +1 more source

A note on relaxed control functions

Journal of Mathematical Analysis and Applications, 1986
AbstractIn [2] the relaxed control functions were defined as linear functionals on some Banach space L1(I, C(S)) of integrable functions with domain I and values in the space of real valued continuous functions defined on some compact set S. The purpose of this note is to extend the range of relaxed control functions to every function φ:I×S → R jointly
openaire   +2 more sources

Anomalous Rotational Relaxation: A Fractional Fokker-Planck Equation Approach

, 2005
In this study we obtained analytically relaxation function in terms of rotational correlation functions based on Brownian motion for complex disordered systems in a stochastic framework.
A. Erdelyi, E. N. Ivanov, Ekrem Aydıner, J. C. Maxwell, J. H. Ro, J. P. Bouchaud, J. R. McConnell, K. B. Oldham, P. Debye, R. Kohlrausch, S. Dattagupta, W. F. Brown   +11 more
core   +2 more sources

Stability of initial-boundary value problem for quasilinear viscoelastic equations

Electronic Journal of Differential Equations, 2020
We investigate the stability of the initial-boundary value problem for the quasilinear viscoelastic equation $$\displaylines{ |u_t|^{\rho}u_{tt}-\Delta u_{tt}-\Delta u+\int_0^tg(t-s)\Delta u(s)ds=0, \quad \text{in }\Omega\times(0,+\infty),\cr u=0 ...
Kun-Peng Jin, Jin Liang, Ti-Jun Xiao
doaj