Measuring and modeling transport properties of actinide and fission product contaminants in unsaturated prairie soil

2007 ◽  
Vol 6 (2) ◽  
pp. 219-229 ◽  
Author(s):  
David J Sims ◽  
William S Andrews ◽  
Xiaomei Wang ◽  
Katherine A.M Creber
Keyword(s):  
Fission Product ◽  
Transport Properties ◽  
Modeling Transport ◽  
Prairie Soil

Modeling Transport Properties of N2–Noble Gas Mixtures at Low and Moderate Densities

2012 ◽  
Vol 85 (5) ◽  
pp. 563-575 ◽  
Author(s):  
Delara Mohammad-Aghaie ◽  
Mohammad Mehdi Papari ◽  
Farshid Zargari
Keyword(s):  
Transport Properties ◽  
Noble Gas ◽  
Gas Mixtures ◽  
Modeling Transport

scholarly journals Transport Efficiency of Continuous-Time Quantum Walks on Graphs

Entropy ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 85
Author(s):  
Luca Razzoli ◽  
Matteo G. A. Paris ◽  
Paolo Bordone
Keyword(s):  
Transport Properties ◽  
Continuous Time ◽  
Quantum Walk ◽  
Quantum Walks ◽  
Transport Processes ◽  
Initial State ◽  
Transport Efficiency ◽  
Harvesting Systems ◽  
Time Quantum ◽  
Modeling Transport

Continuous-time quantum walk describes the propagation of a quantum particle (or an excitation) evolving continuously in time on a graph. As such, it provides a natural framework for modeling transport processes, e.g., in light-harvesting systems. In particular, the transport properties strongly depend on the initial state and specific features of the graph under investigation. In this paper, we address the role of graph topology, and investigate the transport properties of graphs with different regularity, symmetry, and connectivity. We neglect disorder and decoherence, and assume a single trap vertex that is accountable for the loss processes. In particular, for each graph, we analytically determine the subspace of states having maximum transport efficiency. Our results provide a set of benchmarks for environment-assisted quantum transport, and suggest that connectivity is a poor indicator for transport efficiency. Indeed, we observe some specific correlations between transport efficiency and connectivity for certain graphs, but, in general, they are uncorrelated.

scholarly journals Modeling transport properties of inhomogeneous superconductor-metal composites

2014 ◽  
Vol 105 (20) ◽  
pp. 202604 ◽  
Author(s):  
A. Borroto ◽  
L. Del Río ◽  
M. Arronte ◽  
T. H. Johansen ◽  
E. Altshuler
Keyword(s):  
Transport Properties ◽  
Metal Composites ◽  
Modeling Transport ◽  
Inhomogeneous Superconductor

Modeling Transport Properties in High Free Volume Glassy Polymers

2005 ◽  
pp. 187-200 ◽  
Author(s):  
Xiao-Yan Wang ◽  
Kenneth M. Lee ◽  
Ying Lu ◽  
Matthew T. Stone ◽  
I. C. Sanchez ◽  
...  
Keyword(s):  
Transport Properties ◽  
Free Volume ◽  
Glassy Polymers ◽  
Modeling Transport

Spectroscopic Diagnostics of Tokamaks

1988 ◽  
Vol 102 ◽  
pp. 165-174
Author(s):  
C. de Michelis
Keyword(s):  
Transport Properties ◽  
Power Losses ◽  
Spectroscopic Diagnostics ◽  
Important Concern

AbstractImpurities being an important concern in tokamaks, spectroscopy plays a key role in their understanding. Techniques for the evaluation of concentrations, power losses and transport properties are surveyed, and a few developments are outlined.

Structure and Orientation of As Precipitates in LT-MBE Grown GaAs

1991 ◽  
Vol 49 ◽  
pp. 900-901 ◽  
Author(s):  
Alain Claverie ◽  
Zuzanna Liliental-Weber
Keyword(s):  
Transport Properties ◽  
Layer Thickness ◽  
Growth Temperature ◽  
Low Temperatures ◽  
Lattice Parameter ◽  
Crystalline Quality ◽  
Insulating Properties ◽  
Lt Gaas

GaAs layers grown by MBE at low temperatures (in the 200°C range, LT-GaAs) have been reported to have very interesting electronic and transport properties. Previous studies have shown that, before annealing, the crystalline quality of the layers is related to the growth temperature. Lowering the temperature or increasing the layer thickness generally results in some columnar polycrystalline growth. For the best “temperature-thickness” combinations, the layers may be very As rich (up to 1.25%) resulting in an up to 0.15% increase of the lattice parameter, consistent with the excess As. Only after annealing are the technologically important semi-insulating properties of these layers observed. When annealed in As atmosphere at about 600°C a decrease of the lattice parameter to the substrate value is observed. TEM studies show formation of precipitates which are supposed to be As related since the average As concentration remains almost unchanged upon annealing.

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