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118 resultados encontrados.

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A Contact Force Model Considering Meshing and Collision States for Dynamic Analysis in Helical Gear System
Artículo
Material complementario disponible Artículo DOAJ
Dong Xiang et al · KeAi Communications Co., Ltd · 2019 · ISSN 1000-9345
Abstract The current research on gear system dynamics mainly utilizes linear spring damping model to calculate the contact force between gears. However, this linear model cannot correctly describe the energy transfer pro...
LCC LCC:Ocean engineering; TENDOk1lY2hhbmljYWwgZW5naW5lZXJpbmcgYW5kIG1hY2hpbmVyeQ~~Idioma eng
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A Control Strategy for Input Voltage Unbalance in Three-Phase PWM Rectifiers Based on Adaptive Periodic Current Fluctuation Suppression
Artículo
Acceso abierto Artículo DOAJ
Hongda Song et al · IEEE · 2026 · ISSN 2169-3536
Three-phase pulse width modulation (PWM) rectifiers are crucial in industrial, civil, and transportation applications. Due to the diversity of grid loads, the three-phase input voltage may be unbalanced, which consequent...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Coordinate-Free Approach to the Design of Generalized Griffis-Duffy Platforms
Artículo
Material complementario disponible Artículo DOAJ
Chengwei Shen et al · KeAi Communications Co., Ltd · 2024 · ISSN 2192-8258
Abstract Architectural singularity belongs to the Type II singularity, in which a parallel manipulator (PM) gains one or more degrees of freedom and becomes uncontrollable. PMs remaining permanently in a singularity are ...
LCC LCC:Ocean engineering; TENDOk1lY2hhbmljYWwgZW5naW5lZXJpbmcgYW5kIG1hY2hpbmVyeQ~~Idioma eng
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A Low Cost, High-Reliability Receiver System for Reading Passive RFID Tags
Artículo
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Nicollas R. de Oliveira et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2021 · ISSN 2179-1074
Abstract Radio-Frequency Identification (RFID) is one of the leading enabling technologies of the Internet of Things (IoT) at low cost and high granularity scenarios. The cost of implementing IoT applications concerns th...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Modified Radiopropagation Multipath Model for Constant Refractivity Gradient Profiles
Artículo
Acceso abierto Artículo DOAJ
D. Parada et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract This paper presents a radiopropagation algorithm based on a Ray Tracing (RT) technique that combines a modified multipath model for constant refractivity gradient profiles and the Uniform Theory of Diffraction (...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion
Artículo
Material complementario disponible Artículo DOAJ
Amanda F. Romeiro et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2023 · ISSN 2179-1074
Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple ...
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.
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A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates
Artículo
Acceso abierto Artículo DOAJ
Marcelo David S. Mesquita et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper describes an investigation of the possibility of using a new conductive ink, insted of copper clad laminates, in the manufacturing of microstrip patch antennas on glass and fiberglass substrates and o...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A New Triple Band Microstrip Fractal Antenna for C-band and S-band Applications
Artículo
Acceso abierto Artículo DOAJ
Edwin L. Barreto et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract Recently research show that some parameters such as the shapes of antenna patch and the ground plane when geometrically altered produces changes in the current density distribution of the planar structure and co...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters
Artículo
Acceso abierto Artículo DOAJ
S. R. O de Souza et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2020 · ISSN 2179-1074
Abstract In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A Performance Evaluation of WLAN-Femtocell-LTE beyond the Capacity Crunch. Does Femtocell have to overcome WLAN or can they coexist in HetNets?
Artículo
Acceso abierto Artículo DOAJ
K.C. Silva et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper originates from a practical experiment based on Mesh Networks. The promising results obtained from this experiment prompted us to discuss in greater depth whether Wireless Local Area Networks (WLAN) a...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A design proposal for ultrawide band frequency selective surface
Artículo
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Francisco Carlos Gurgel da Silva Segundo et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
In this paper a three layer FSS is described which provides a ultrawide band (UWB) response. The layers use plain rectangular patches, and rectangular patches with one or two notches which provide multi-band responses; b...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A reflectarray Using a Dielectric Discretized Concave Mirror Based on Electromagnetic Band Gap
Artículo
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Gustavo Maciulis Dip et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2025 · ISSN 2179-1074
Abstract This paper presents a reflectarray antenna with an innovative dielectric mirror in the form of a discretized concave reflector. The mirror, manufactured via 3D printing, combines dielectric and air layers, formi...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
A second-order sliding mode controller with integral barrier Lyapunov function for crowd density regulation
Artículo
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Wei Qin et al · SpringerOpen · 2026 · ISSN 1110-1903
Abstract Effective evacuation strategies are critical for preventing stampedes in large-scale, high-density crowd management. This paper develops a second-order sliding mode controller within a distributed parameter syst...
LCC LCC:Engineering (General). Civil engineering (General)Idioma eng
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Open Access
Adaptive deep reinforcement learning-based control strategy for high-performance permanent magnet synchronous motor drive systems
Artículo
Material complementario disponible Artículo DOAJ
S. Dukkipati et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X
Introduction. In recent days, electric vehicles, robotics and in many control system applications, permanent magnet synchronous motors (PMSMs) are widely utilized. Problem. Due to non-linear behavior of system, external ...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Material complementario
Analysis of Linear Antenna Array for minimum Side Lobe Level, Half Power Beamwidth, and Nulls control using PSO
Artículo
Material complementario disponible Artículo DOAJ
Saeed Ur Rahman et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper presents the optimization performance of non-uniform linear antenna array with optimized inter-element spacing and excitation amplitude using Particle Swarm Optimization (PSO). The aim of the proposed...
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
Analysis of microstrip antennas on carbon fiber composite material
Artículo
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Rodrigo R. de Assis et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
In this paper a truncated corner rectangular microstrip antenna (TCRMA) is analyzed in the presence of carbon fiber composite (CFC) material. Simplified carbon fiber composite models are proposed and the analyses are per...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Automated multiphysics MEMS co-optimization platform: Integrated fabrication constraints and accelerated design for high-linearity sensors
Artículo
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Peizhi Yu et al · AIP Publishing LLC · 2026 · ISSN 1672-6030
This paper proposes an innovative automated multiphysics Microelectromechanical systems (MEMS) co-optimization platform integrating the embedded reduced-order modeling offered by Coventor MEMS+ with MATLAB’s numerical ...
LCC TENDOlRlY2hub2xvZ3k~; LCC:Engineering (General). Civil engineering (General)Idioma eng
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Open Access
Averaging-Based Hybrid Ensemble of DenseNet-121 and ResNet-50 for Computer-Aided Brain Tumour Diagnosis: A Step Towards Early Detection
Artículo
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Laiba Hanif et al · Engiscience Publisher · 2026 · ISSN 3007-2875
One of the deadliest diseases that can affect children and adults is a brain tumour. A brain tumour is the abnormal growth of cells in the brain or near it. Commonly, there are two types of tumours: malignant (cancerous)...
LCC LCC:Engineering (General). Civil engineering (General)Idioma eng
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Open Access
Behavior of Fibrous High-Strength Glass Fiber Reinforced Polymer Reinforced Concrete Deep Beams
Artículo
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Eklas Hatto Hashim et al · Mustansiriyah University/College of Engineering · 2026 · ISSN 2520-0917
Deep beams are an important element in infrastructure and offshore structures. This paper investigates the shear capacity of glass fiber reinforced polymer GFRP reinforced high-strength fibrous concrete deep beam. (12) s...
LCC LCC:Engineering (General). Civil engineering (General)Idioma ara
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Open Access
Behavior of Steel Fiber Reinforced Concrete Deep Beams at Elevated Temperature
Artículo
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Jawad K. Al-Bayati et al · Mustansiriyah University/College of Engineering · 2026 · ISSN 2520-0917
This paper presents an experimental investigation on the behavior of steel fiber reinforced concrete deep beams at elevated temperature. Twelve reinforced concrete deep beams were cast and tested. The beams were tested u...
LCC LCC:Engineering (General). Civil engineering (General)Idioma ara
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Open Access
Bioimpedance Calculation Considering Spherical Anomalies
Artículo
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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
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Biomimetics in Helmet Design: A Review of Aerodynamic Perspectives
Artículo
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Mahadi Hasan Masud et al · Wiley · 2026 · ISSN 2314-4912
Recent advancements in helmet design demonstrate that mimicking natural models can enhance both aerodynamics and safety protection. Thus, this paper comprehensively reviews the bio-inspired helmet designs reported in the...
LCC LCC:Engineering (General). Civil engineering (General)Idioma eng
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Open Access
Cement Plant Power Demand Prediction Using 1D Convolutional Neural Network Model: A Case Study
Artículo
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Tawfeeq E. Abdulabbas et al · Mustansiriyah University/College of Engineering · 2026 · ISSN 2520-0917
The management and operation of the power system would be significantly enhanced if accurate prior knowledge of power exchanges were provided, which could provide valuable insights into the system and help predict the re...
LCC LCC:Engineering (General). Civil engineering (General)Idioma ara
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Open Access
Channel Characteristics for Fixed and Portable DTV Reception in a Single Frequency Network
Artículo
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Maurício V. Guerra et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
Abstract This paper presents the propagation channel characteristics of a digital TV single-frequency network (SFN) obtained by carrying out field measurements using two synchronized transmitters. The measurements are pe...
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.
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