transfer-transport of the waste is one of key functional elements in solid waste management from technical and financial viewpoint. unfortunately very few reach activities has been conducted in this field regarding local characteristic of phenomenon which urges undertaking local surveys and research projects. tehran organization of waste recycling and composting has decided to investigate diffe...

The present review focuses on links between structure, energetics and ion transport in oxygen-deficient perovskite oxides, ABO(3-delta). The perfect long-range order, convenient for interpretations of the structure and properties of ordered materials, is evidently not present in disordered materials and highly defective perovskite oxides are spatially inhomogeneous on an intermediate length sca...

The relationship between potato and banana transport theories is addressed using the solution of the drift kinetic equation. It is shown that they are two limits of a complete theory. The potato theory is the ψ → 0 limit and the banana theory is the ψ → ∞ limit. Here, ψ is the poloidal flux function. These local transport theories are valid even in the steep gradient situations because the real...

Designing optimal microstructures for solid oxide fuel cell (SOFC) electrodes is complicated due to the multitude of electro-chemo-physical phenomena taking place simultaneously that directly affect working conditions of a SOFC electrode and its performance. In this study, a new design paradigm is presented to obtain a balance between electrochemical sites in the form of triple phase boundary (...

The electronic ground-state properties of Fe/semiconductor/Fe~001! tunnel junctions are studied by means of the ab initio screened Korringa-Kohn-Rostoker method. We focus on the magnetic properties, charge transfer, local, and qi-resolved density of states of these systems. We consider in detail Fe/ZnSe/Fe~001! tunnel junctions and compare their electronic properties with junctions with Si and ...

This study characterizes layer- and local-scale heterogeneities in hydraulic parameters (i.e., matrix permeability and porosity) and investigates the relative effect of layer- and local-scale heterogeneities on the uncertainty assessment of unsaturated flow and tracer transport in the unsaturated zone of Yucca Mountain, USA. The layer-scale heterogeneity is specific to hydrogeologic layers with...