Browsing Documentos - CUFEI by Title
Now showing items 1-20 of 2135
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2-[(4-Chlorophenyl)selanyl]-3,4-dihydro-2H-benzo[h]chromene-5,6-dione: Crystal structure and Hirshfeld analysis
(2017)© 2017.The title organoselenium compound, C19H13ClO3Se {systematic name: 2-[(4-chlorophenyl)selanyl]-2H,3H,4H,5H,6H-naphtho[1,2-b]pyran-5,6-dione}, has the substituted 2-pyranyl ring in a half-chair conformation with the ... -
3D simulation of triple-gate MOSFETs with different mobility regions
(2011-07-05)In this paper we present a new approach for analyzing 3D structure triple-gate MOSFETs using three different regions, one at the top and two in the sidewalls of the fin, which allows for considering different carrier ... -
A CFD analysis of the flow dynamics of a directly-operated safety relief valve
(2018)© 2018 Elsevier B.V.A three-dimensional numerical study on steady state was designed for a safety relief valve using several openings and inlet pressures. The ANSYS-CFX® commercial code was used as a CFD tool to obtain ... -
A charge-based continuous model for submicron graded-channel nMOSFET for analog circuit simulation
(2005)In this work a continuous analytical model for analog simulation of submicron asymmetrically doped silicon-on-insulator (SOI) nMOSFET using the graded-channel (GC) architecture, valid from weak to strong inversion regimes, ... -
A commercial off-the-shelf pMOS transistor as X-ray and heavy ion detector
(2015)© Published under licence by IOP Publishing Ltd.Recently, p-channel metal-oxide-semiconductor (pMOS) transistors were suggested as fit for the task of detecting and quantifying ionizing radiation dose. Linearity, small ... -
A high-speed shaft supported by magnetic bearings applied to energy systems
(2017)© 2016, The Brazilian Society of Mechanical Sciences and Engineering.This paper presents the construction of a mechanical shaft supported by active magnetic bearings (AMB), reproducing a prototype of a turbogenerator. In ... -
A LQG/LTR Based Robust Control Applied to a Steel Strip Coiling System
(2015)© 2015 IEEE.This work presents the modelling, analysis and control of a steel strip coiling system using twin roll direct casting, in a plant placed at Technological Research Institute of Sao Paulo. The characteristics of ... -
A MID-INFRARED VIEW of the HIGH MASS STAR FORMATION REGION W51A
(2016)© 2016. The American Astronomical Society. All rights reserved.In this paper we present the results of a mid-infrared study of G49.5-0.4, or W51A, part of the massive starbirth complex W51. Combining public data from the ... -
A multivariate statistical analysis of the developing human brain in preterm infants
(2007)Preterm delivery accounts for 5% of all deliveries and its consequences contribute to significant individual, medical, and social problems. The neuroanatomical substrates of these disorders are not known, but are essential ... -
A new ranking method for principal components analysis and its application to face image analysis
(2010)In this work, we investigate a new ranking method for principal component analysis (PCA). Instead of sorting the principal components in decreasing order of the corresponding eigenvalues, we propose the idea of using the ... -
A physically-based threshold voltage definition, extraction and analytical model for junctionless nanowire transistors
(2013)This work proposes a physically-based definition for the threshold voltage, VTH, of junctionless nanowire transistors and a methodology to extract it. The VTH is defined as the point of equal magnitude for the drift and ... -
A priori-driven multivariate statistical approach to reduce dimensionality of MEG signals
(2013)A magnetoencephalography (MEG) multivariate data exploratory analysis is described and implemented that combines the variance criterion used in principal component analysis with some prior knowledge about the sensory ... -
A q-extension of sigmoid functions and the application for enhancement of ultrasound images
(2019)© 2019 by the authors.This paper proposes the q-sigmoid functions, which are variations of the sigmoid expressions and an analysis of their application to the process of enhancing regions of interest in digital images. ... -
A qualitative spatial representation of string loops as holes
(2016)© 2016 Published by Elsevier B.V.This research note contains an extension of a previous work by Cabalar and Santos (2011) that formalised several spatial puzzles formed by strings and holes. That approach explicitly ignored ... -
A simple current model for edgeless SOI nMOSFET and a 3-D analysis
(2005)This work presents a new approach for the current model of thin-film, fully depleted SOI edgeless transistors, based on the asymmetric trapezoidal gate model. The most common current model for an edgeless transistor is ... -
A study of PP/PET composites: Factorial design, mechanical and thermal properties
(2016)© 2016 Elsevier LtdDue to the economic importance of polypropylene (PP) and polyethylene terephthalate (PET), and the large amount of composites made with PP matrix and recycled PET as reinforcing material; an investigation ... -
A study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests
(2013)Several works on friction coefficient during abrasive wear tests are available in the literature, but only a few were dedicated to the friction coefficient in micro-abrasive wear tests conducted with rotating ball. This ... -
A system to measure isomeric state half-lives in the 10 ns to 10 μs range
(2014)The Isomeric State Measurement System (SISMEI) was developed to search for isomeric nuclear states produced by fusion-evaporation reactions. The SISMEI consists of 10 plastic phoswich telescopes, two lead shields, one ...