Showing papers on "Mobility model published in 1982"
TL;DR: In this paper, the authors present a new model for conduction in polycrystalline silicon based on an extended state mobility in the disordered grain boundary and the diffusion theory of current.
Abstract: We present a new model for conduction in polycrystalline silicon based on an extended state mobility in the disordered grain boundary and the diffusion theory of current. This analysis for the first time satisfactorily explains-without the use of scaling or artificial factors-experimental data on current density, mobility, resistivity, and the activation energy for carriers in polysilicon. An attractive feature of this theory is that it provides simple expressions for J, µ, and ρ which may even be derived from an equivalent circuit model. Also, these expressions reduce, within appropriate limits, to the corresponding terms for single crystal or amorphous material.
23 citations
01 Sep 1982
TL;DR: In this article, the authors defined the upper bound of mobility performance for 16-ton wheeled LAV's as defined by these parameters, assuming the use in all cases of the best practical state-of-the-art suspensions matched to the overall vehicle configuration.
Abstract: : The study shows how the mobility performance of a 16-ton wheeled, light armored vehicle (LAV) is affected by systematic variations in number of axles, in tire size and/or in installed horsepower. The object of the study is to define the upper bounds of mobility performance for 16-ton wheeled LAV's as defined by these parameters, assuming the use in all cases of the best practical state-of-the-art suspensions matched to the overall vehicle configuration. The hull configuration of the parametric vehicles derives from a 6x6 concept design developed by TACOM under the 1980-81 ACVT program. Twelve variations are examined in which changes in weight and geometry associated with power train and running gear variations are accounted for. The study uses the ride dynamics module (VEHDYN) of the Army Mobility Model (AMM) for characterizing ride and shock characteristics of the study vehicles, AMM for making off-road and on-road performance predictions, the SWIMCRIT/WACROSS water-crossing model for analyzing linear feature crossings and the WES DASH model for computing acceleration performance. Measures of mobility performance for the twelve study vehicles are developed using digital mobility-terrain data representing first the central highlands of the Federal Republic of Germany and second northeast Jordan. These data bases, each covering about 500 km (2), are available from earlier WES studies.