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14 resultados encontrados.

Tipos de recurso: Libro electrónico Artículo Revista Tesis Capítulo
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Electrical and optical numerical modeling of DP-PPV based polymer light emitting diode
Artículo
Acceso abierto Artículo DOAJ
K. Benatia et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract In this paper, an in-depth study of the electrical and optical characteristics of Polymer Light Emitting Diodes ITO/PEDOT: PSS/DP-PPV derivatives/Al(Ca) is presented. Three polymer materials are considered; poly...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Optimization Techniques and Mathematical Modeling Applied to Reluctance Motors
Artículo
Acceso abierto Artículo DOAJ
B.B. Miranda et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2022 · ISSN 2179-1074
Abstract The present work aims at the application of different optimization strategies in the electromagnetic analysis of the Variable Reluctance Motor (VRM) through Finite Element (FE) simulation. Two case studies are i...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Novel Tri-bandpass Filter Side-coupled Square Ring Based
Artículo
Acceso abierto Artículo DOAJ
José Garibaldi Duarte Júnior et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This work presents the design of a tri-bandpass filter based on the side-coupled square ring structure. The modeling is conceived from the classic approach of coupled transmission lines. The geometry consists of...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Detection of Eyebolt Faults Using a Random Forest Ensemble Model Based on Multiple High-Frequency Electromagnetic Parameters
Artículo
Acceso abierto Artículo DOAJ
H. V. H. Silva Filho et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract This paper presents an eyebolt structural fault detection system, based on the analysis of multiple electromagnetic parameters through a random forest classifier trained by both measurements and high-fidelity si...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Material Characterization and Propagation Analysis of mm-Waves Indoor Networks
Artículo
Acceso abierto Artículo DOAJ
A. Fagiani et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper reports detailed propagation analyses of mm-wave indoor networks based numerical simulations of the wireless coverage and measurements of the propagation coefficient at 28 and 38 GHz. Additionally, ma...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
SAR Analysis for handheld mobile phone using DICOM based voxel model
Artículo
Acceso abierto Artículo DOAJ
Faruk Ali et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
In this paper, Specific Absorption Rates (SAR) inside the human head and hand have been analyzed for a handheld mobile phone operated at GSM 900 band. Both the head and hand are modeled electrically using Digital Imaging...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Testing strategies to evaluate non-oriented electrical steels losses
Artículo
Acceso abierto Artículo DOAJ
J. P. Schlegel et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This paper presents an experimental comparative study of iron losses obtained by means of the Epstein frame, Ring Core and dynamometer tests with non-oriented electrical steel samples. The comparisons are qualitative and...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Inversion Method for Obtaining Electrical Parameters for Soil in the Rural Region in Brazil
Artículo
Acceso abierto Artículo DOAJ
Rômulo A. N. Oliveira et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
AbstractThis paper presents an inversion methodology through weighted least squares to obtain the electrical parameters for the soil of a typical mid-western region in Brazil using the model based in the formalism of the...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Bioimpedance Calculation Considering Spherical Anomalies
Artículo
Material complementario disponible Artículo DOAJ
Rooney R. A. Coelho et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2021 · ISSN 2179-1074
Abstract This paper presents a solution for sphere-shaped heterogeneities applied to the bioimpedance test. Such an approach has applicability for electrical impedance tomography, considering the impedance response for e...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
A methodology for performance evaluation of LEDs based on ac small signal analysis
Artículo
Acceso abierto Artículo DOAJ
Isnaldo J. Souza Coêlho et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This paper shows fundamentals and results that support a promising methodology for evaluation in locus of a LED from its own radiating signal, and that allows monitoring of its aging by remote inference on which degradat...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Design of coaxial aircell fixture for the measurement of electromagnetic properties
Artículo
Material complementario disponible Artículo DOAJ
V. Seetha Rama Raju · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract Coaxial aircells are designed and fabricated to measure the electromagnetic properties of ferrite materials in the frequency range from 1 MHz to 3.6 GHz. These S-parameters are actually measured connecting the a...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Estimation of Three-Phase Induction Motor Equivalent Circuit Parameters from Manufacturer Catalog Data
Artículo
Acceso abierto Artículo DOAJ
Carlos A. C. Wengerkievicz et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract The single phase equivalent circuit is largely used to model the three-phase induction motors in steady-state operation and under sinusoidal balanced voltages. Depending on the desired application, the circuit m...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Implementation of PoF-powered IoT Sensing Systems for Industry 4.0
Artículo
Material complementario disponible Artículo DOAJ
Letícia C. Souza et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract We propose and experimentally investigate two distinct power-over-Fiber (PoF) approaches, aiming to remotely power Internet-of-Things (IoT) sensing systems for Industry 4.0 environments. The first proof-of-conce...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Three-Dimensional Reciprocal Invisibility Cloak with Multilayered Structure
Artículo
Acceso abierto Artículo DOAJ
Yanglu Xuan et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract We investigate a three-dimensional (3D) reciprocal invisibility cloak with a multilayered structure based on coordinate transformation theory and complementary media. There has been considerable research on invi...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access