Interface State Density
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Community structure and population dynamics of small mammals in an urban-sylvatic interface area in Rio de Janeiro, Brazil
ABSTRACT The Atlantic Forest is one of the most disturbed Brazilian biomes, with 183 out of 298 species of mammals occurring in the state of Rio de Janeiro. In this study, we aimed to characterize the diversity, community structure, and habitat use of small mammals in the FIOCRUZ Atlantic Forest Campus (CFMA), including areas of Pedra Branca State Park (PBSP
Zoologia (Curitiba). Publicado em: 13/06/2018
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2. Estudo de camadas dielétricas para aplicação em capacitores MOS. / Study of dielectric layers for MOS capacitors.
Silicon oxynitride films obtained by the PECVD technique from N2O+SiH4+He gaseous mixtures, at 320°C, with different deposition pressure and RF power were studied intending to improve the interface quality with Si, decreasing the effective charge density and the interface state density in order to utilize them in MOS semiconductor devices. The results showe
Publicado em: 2007
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3. Study and fabrication of MOS capacitor with PECVD SiOxNy. / Estudo e fabricação de capacitores MOS com camada isolante de SiOxNy depositada por PECVD.
Neste trabalho foram fabricados e caracterizados capacitores MOS com camada dielétrica de oxinitreto de silício de diferentes composição química, depositada pela técnica de PECVD a baixa temperatura, com o intuito de estudar suas propriedades dielétricas e de interface visando à aplicação deste material em dispositivos MOS e de filme fino. Os capac
Publicado em: 2003
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4. Estados eletronicos de superficie e interfaces em semicondutores : Si-Sno2
We develop a technique to calculate the density of state of surfaces and interfaces. The method used here is the tight-binding Hamiltonian based on the Slater-Koster approach. The Green functions, which arise from the formalism of the scattering theory, are decoupled through the renormalization s procedure. We study the ideal surface (100) of Si and SnO2, an
Publicado em: 1984
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5. Influence of surface chemistry on the structural organization of monomolecular protein layers adsorbed to functionalized aqueous interfaces.
The molecular organization of streptavidin (SA) bound to aqueous surface monolayers of biotin-functionalized lipids and binary lipid mixtures has been investigated with neutron reflectivity and electron and fluorescence microscopy. The substitution of deuterons (2H) for protons (1H), both in subphase water molecules and in the alkyl chains of the lipid surfa
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6. Application of the Wang–Landau algorithm to the dimerization of glycophorin A
A two-step Monte Carlo procedure is developed to investigate the dimerization process of the homodimer glycophorin A. In the first step, the energy density of states of the system is estimated by the Wang–Landau algorithm. In the second step, a production run is performed during which various energetical and structural observables are sampled to provide in
American Institute of Physics.
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7. CHARMM-GUI Membrane Builder for Mixed Bilayers and Its Application to Yeast Membranes
The CHARMM-GUI Membrane Builder (http://www.charmm-gui.org/input/membrane), an intuitive, straightforward, web-based graphical user interface, was expanded to automate the building process of heterogeneous lipid bilayers, with or without a protein and with support for up to 32 different lipid types. The efficacy of these new features was tested by building a
The Biophysical Society.
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8. Osteomalacia and Hyperparathyroid Bone Disease in Patients with Nephrotic Syndrome
Patients with nephrotic syndrome have low blood levels of 25 hydroxyvitamin D (25-OH-D) most probably because of losses in urine, and a vitamin D-deficient state may ensue. The biological consequences of this phenomenon on target organs of vitamin D are not known. This study evaluates one of these target organs, the bone. Because renal failure is associated
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9. Properties of water along the liquid-vapor coexistence curve via molecular dynamics simulations using the polarizable TIP4P-QDP-LJ water model
We present an extension of the TIP4P-QDP model, TIP4P-QDP-LJ, that is designed to couple changes in repulsive and dispersive nonbond interactions to changes in polarizability. Polarizability is intimately related to the dispersion component of classical force field models of interactions, and we explore the effect of incorporating this connection explicitly
American Institute of Physics.