31,779 research outputs found
Logarithmic behavior of degradation dynamics in metal--oxide semiconductor devices
In this paper the authors describe a theoretical simple statistical modelling
of relaxation process in metal-oxide semiconductor devices that governs its
degradation. Basically, starting from an initial state where a given number of
traps are occupied, the dynamics of the relaxation process is measured
calculating the density of occupied traps and its fluctuations (second moment)
as function of time. Our theoretical results show a universal logarithmic law
for the density of occupied traps , i.e., the degradation is logarithmic and its amplitude depends on the
temperature and Fermi Level of device. Our approach reduces the work to the
averages determined by simple binomial sums that are corroborated by our Monte
Carlo simulations and by experimental results from literature, which bear in
mind enlightening elucidations about the physics of degradation of
semiconductor devices of our modern life
Potential population growth of Melanaphis sacchari (Zethner) reared on sugarcane and sweet sorghum.
Slavnov-Taylor identities for noncommutative QED
In this work we present an analysis of the one-loop Slavnov-Taylor identities
in noncommutative QED. The vectorial fermion-photon and the triple photon
vertex functions were studied, with the conclusion that no anomalies arise.Comment: 24 pages, revtex4, v2: typos correcte
Análise fisiográfica das várzeas do Baixo Tocantins: uma contribuição ao manejo e desenvolvimento dos sistemas de uso da terra.
Análise fisiográfica e a evolução das várzeas do Baixo Tocantins; Fisiologia fluvial; Adequação e limitações ambientais impostas aos subsistemas.bitstream/item/63563/1/Oriental-Doc149.PD
Resgate e conservação da flora no aproveitamento hidrelétrico Cana Brava, Goiás: relatório final.
Introdução e objetivos; Características gerais do reservatório; Estratégias de ação e métodos; Resultados; Anexo 1 "Check list" do Aproveitamento Hidrelétrico Cana Brava, Goiás, Brasil. Anexo 2 Lista de especies com germoplasma resgatado na área de influência do AHE Cana Brava.bitstream/item/130278/1/Rel-Final-Nov-2002.pd
Efeitos da competição de plantas daninhas na cultura do sorgo granífero (Sorghum bicolor L. Moench).
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