3,864 research outputs found
Transmission of Digitaria Streak Virus by the Maize Streak Virus Leafhopper Vector Cicadulina Mbila Naude
No full textAn unpublished account of possible trans-encapsidation of one mastrevirus by another, allowing transmission of both by a vector that normally only transmits one
Magnetoresistance in triphenyl-diamine derivative blue organic light emitting devices
No full textCopyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This article appeared in Journal of Applied Physics 103, 043706 (2008) and may be found at
Central-force decomposition of spline-based modified embedded atom method potential
No full textCentral-force decompositions are fundamental to the calculation of stress fields in atomic systems by means of Hardy stress. We derive expressions for a central-force decomposition of the spline-based modified embedded atom method (s-MEAM) potential. The expressions are subsequently simplified to a form that can be readily used in molecular-dynamics simulations, enabling the calculation of the spatial distribution of stress in systems treated with this novel class of empirical potentials. We briefly discuss the properties of the obtained decomposition and highlight further computational techniques that can be expected to benefit from the results of this work. To demonstrate the practicability of the derived expressions, we apply them to calculate stress fields due to an edge dislocation in bcc Mo, comparing their predictions to those of linear elasticity theory
A new program package for ring analysis of computer-simulated atomic structures of solids.
No full textNumerical investigation of non-ohmic hopping conduction in macroscopically non-homogeneousthin layers. Weak electron-phonon interaction
No full textThe current-field and the conductivity-field characteristics of random hopping non-uniform systems in the limit of a weak electron-phonon coupling (band-like hopping transport in disordered solids) have been calculated numerically within the Bottger-Bryksin model. In particular, we consider thin layers placed between two planar Ohmic contacts, with exponential spatial variations in the total centre concentration over the layer thickness. We find that firstly for r-hopping transport in spatially uniform layers the current decreases with increasing field, reaching a constant saturation value, and on increasing the degree of non-uniformity the saturation current becomes lower and secondly both uniform and non-uniform r- epsilon -hopping systems are almost exactly Ohmic in the investigated field range; conductivity decreases on increasing the degree of non-uniformity of the centre distribution. Degree of the layer non-uniformity in the limit of weak electron-phonon coupling are quite different from the dependences in the case of strong electron-phonon coupling. The dependences on the degree of the layer non-uniformity of the centre distribution. The dependences on the degree of the layer non-uniformity in the limit of weak electron-phonon coupling are quite different from the dependences in the case of strong electron-phonon coupling
JOINT CONFERENCES ON ADVANCED MATERIALS Functional and Nanonstructured Materials - FNMA'09; Intermolecular and Magnetic Interactions in Matter - IMIM'09 Sulmona-L'Aquila, Italy, September 27-30 2009 Preface
No full textA new program package for investigation of medium-range order in computer-simulated solids
No full textThe opportunity to gain detailed information on the representative sets of rings, and chains of atoms is of great importance in the analysis of medium-range order in the computer-simulated structures of solids. In this paper, a new program package (ANELLI) for ring and chain analysis of computer-simulated atomic structures is presented, and examples are given of its usage
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