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Spectral density functions for disordered systems

Description: This work describes a Monte Carlo calculation of the spectral density function A(k,E) for a one-dimensional model of an amorphous solid. The model contains an adjustable short-range order parameter and A(k,E) is obtained for several values of that parameter. The Hamiltonians considered are: (1) the Hamiltonian describing an electron moving in a potential consisting of randomly placed delta functions, (2) the Hamiltonian describing a system of coupled harmonic oscillators, and (3) a tight-bindin… more
Date: November 1, 1976
Creator: Hall, D. G.
Partner: UNT Libraries Government Documents Department
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Renewable Electricity Futures Study. Volume 2: Renewable Electricity Generation and Storage Technologies

Description: The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying hig… more
Date: June 1, 2012
Creator: Augustine, C.; Bain, R.; Chapman, J.; Denholm, P.; Drury, E.; Hall, D. G. et al.
Partner: UNT Libraries Government Documents Department
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