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Coherent quantum transport in disordered systems: II. Temperature dependence of carrier diffusion coefficients from the time-dependent wavepacket diffusion method
time-dependent wavepacket diffusion carrier diffusion coefficient static and dynamic disorder band-like to hopping-type transport
2014/9/24
The time-dependent wavepacket diffusion method for carrier quantum dynamics (Zhong and Zhao 2013J. Chem. Phys.138014111), a truncated version of the stochastic Schrödinger equation/wavefunction a...
Bifurcations of stochastic differential equations with singular diffusion coefficients
bifurcations noise universal unfolding stochastic stability (quasi)-stationary distributions normal forms
2012/5/9
In this article, we address the dynamics and bifurcations of a wide class of stochastic differential equations around singular points where both the drift and diffusion functions vanish. We apply thes...
Calculation of Viscosity and Diffusion Coefficients for Two Binary Gaseous Mixtures Using the Semi-empirical Inversion Method
Inversion method Viscosity Diffusion Gaseous mixture
2012/4/5
The accurate reduced potential energies for two binary gas mixtures including benzene-methanol and methane-tetrafluoromethane at low density have been obtained by direct inversion of the viscosity col...
Elliptic operators with unbounded diffusion coefficients in Lp spaces
elliptic operators unbounded coefficients generation results analytic semigroups
2010/12/1
In this paper we prove that, under suitable assumptions on > 0, the operator L = (1+|x| ) admits realizations generating contraction or analytic semigroups in Lp(RN). For some values of , we also ...
Laboratory Determination of Multicomponent Effective Diffusion Coefficients for Heavy Metals in a Compacted Clay
contaminant transport diffusion coefficients heavy metals clay liner Ankara clay
2009/7/7
Diffusion and sorption of heavy-metal ions (Cd, Cr, Cu, Fe, K, Mn, Ni, Pb, and Zn) through an Ankara clay liner were studied experimentally. The Ankara clay consists of calcite, quartz, smectite and i...
Diffusion Coefficients Calculated from the Mediterranean Salinity Anomaly in the North Atlantic Ocean
Coefficients Calculated the North Atlantic Ocean Mediterranean Salinity Anomaly
2009/3/24
Vertical and horizontal austauch coefficients have been obtained from standard station data on the Mediterranean high-salinity tongue by use of a simple model including advection by a constant velocit...
Evaluation of archived and off-line diagnosed vertical diffusion coefficients from ERA-40 with 222Rn simulations
diffusion coefficients ERA-40 222Rn
2009/3/10
Boundary layer turbulence has a profound influence on the distribution of tracers with sources or sinks at the surface. The 40-year ERA-40 meteorological data set of the European Centre for Medium-ran...
Extraction of Mixed Layer Advection Velocities, Diffusion Coefficients, Feedback Factors and Atmospheric Forcing Parameters from the Statistical Analysis of North Pacific SST Anomaly Fields
sea surface temperature Mixed Layer Advection Velocities Diffusion Coefficients
2009/1/9
The statistical properties of observed North Pacific sea surface temperature (SST) anomalies are simulated by a simple mixed layer advection and diffusion model with stabilizing feedback and local sto...
Self-Diffusion Coefficients in Liquid Ag Using the Embedded Atom Model Based Effective Pair Potentials
Dynamic Properties Self-diffusion
2010/4/9
We present the dynamical properties of liquid Ag at different temperatures, using the Mishin and Doyoma-Kagure version of the Embedded Atom Model (EAM) potentials. They have been evaluated within the ...
Multiple-Ion Diffusion—I. Techniques for Measuring and Calculating Apparent Self-Diffusion Coefficients in Heteroionic Systems
Multiple Ion Diffusion I. Techniques Measuring Calculating Apparent Self-Diffusion Coefficients Heteroionic Systems
2012/2/21
This investigation was designed to integrate the quick-freeze technique for ion diffusion with two computer programs to permit the simultaneous measurement and calculation of the diffusivity of a vari...