Results 1 to 10 of about 74,309 (134)

Parameter N Analysis on the Rational-Talbot Algorithm for Numerical Inversion of Laplace Transform

Vetor, 2021
This article investigates the numerical inversion of the Laplace Transform by the Rational-Talbot method and analyzes the influence on the variation of the free parameter N established by the technique when applied to certain functions.
Elisandra Freitas, George Ricardo Libardi Calixto, Juciara Alves Ferreira, Bárbara Denicol do Amaral Rodriguez, João Francisco Prolo Filho   +4 more
doaj   +5 more sources

Shannon entropy in time-varying semantic networks of titles of scientific paper

Applied Network Science, 2020
Recent work has employed information theory in social and complex networks. Studies often discuss entropy in the degree distributions of a network. However, no specific work on entropy exists in clique networks.
Marcelo do Vale Cunha, Carlos Cesar Ribeiro Santos, Marcelo Albano Moret, Hernane Borges de Barros Pereira   +3 more
doaj   +1 more source

Drug design and repurposing with DockThor-VS web server focusing on SARS-CoV-2 therapeutic targets and their non-synonym variants

Scientific Reports, 2021
The COVID-19 caused by the SARS-CoV-2 virus was declared a pandemic disease in March 2020 by the World Health Organization (WHO). Structure-Based Drug Design strategies based on docking methodologies have been widely used for both new drug development ...
Isabella A. Guedes, Leon S. C. Costa, Karina B. dos Santos, Ana L. M. Karl, Gregório K. Rocha, Iury M. Teixeira, Marcelo M. Galheigo, Vivian Medeiros, Eduardo Krempser, Fábio L. Custódio, Helio J. C. Barbosa, Marisa F. Nicolás, Laurent E. Dardenne   +12 more
doaj   +1 more source

A Proposal of Optical Navigation for Deep Space Mission ASTER to Explore NEA 2001-SN263 [PDF]

Journal of Aerospace Technology and Management, 2022
In addition to radio navigation, optical navigation has been used successfully in deep-space missions since the launch of the Voyager spacecraft, in the 1970s.
Antonio Gil Vicente de Brum, Carolina Mattos Schuindt   +1 more
doaj   +1 more source

Temperature Analysis of Schottky Diodes Rectifiers for Low-Power RF Energy Harvesting Applications

IEEE Access, 2023
This article aims to contribute for the improvement of low-power Radio Frequency Energy Harvesting (RFEH) designs based on Schottky Barrier Diode (SBD) rectifiers, presenting a study of the relationship between RF-DC Power Conversion Efficiency (PCE) and
Humberto Pereira Da Paz, Vinicius Santana Da Silva, Renan Diniz, Renan Trevisoli, Carlos Eduardo Capovilla, Ivan Roberto Santana Casella   +5 more
doaj   +1 more source

Técnicas de Matriz Resposta com Aproximações de Baixa Ordem Aplicadas a Problemas de Transporte de Fótons

Vetor, 2023
Problemas relacionados à transferência radiativa e ao transporte de fótons são comumente encontrados em diversas disciplinas científicas e campos da engenharia, abrangendo desde a tomografia computadorizada e radioterapia até a astrofísica, testes não ...
Iram Barbaro Rivas Ortiz, Susana Marrero Iglesias, Francisco Bruno Souza Oliveira, Paulo Eduardo Ambrósio, Dany Sanchez Dominguez   +4 more
doaj   +1 more source

Semi-quantitative determination of ash element content for freeze-dried, defatted, sulfated and pyrolysed biomass of Scenedesmus sp.

Biotechnology for Biofuels, 2020
Background Energy demand by mankind has become one of the most important aspects of our society. A promising technology that seeks to provide part of the energy demand and to obtain high-value products is the thermochemical conversion of microalgae ...
Rafael Augusto Sotana de Souza, Flávia Marisa Prado Saldanha-Corrêa, Antonio Garrido Gallego, Ana Maria Pereira Neto   +3 more
doaj   +1 more source

Application of Segmentation and Fuzzy Classification Techniques (TSK) in Analyzing the Composition of Lightweight Concretes Containing Ethylene Vinyl Acetate and Natural Fibers Using Micro-Computed Tomography Images

Applied Sciences, 2023
The reuse of ethylene vinyl acetate (EVA) discarded from the sports and footwear industries as a partial substitute for gravel in concrete is a way of reducing anthropogenic environmental impacts by enabling the production of lighter structures with ...
Miquéias A. S. Silva, Susana M. Iglesias, Paulo E. Ambrosio, Iram B. R. Ortiz, Dany S. Dominguez, Diego Frias   +5 more
doaj   +1 more source

Homogeneização assintótica da equação do calor para meios unidimensionais periódicos continuamente heterogêneos

Vetor, 2016
O método de homogeneização assintótica consiste na transformação do problema com coeficientes rapidamente oscilantes de um meio heterogêneo (chamado problema original), em outro sobre um meio homogêneo, assintoticamente equivalente ao heterogêneo ...
Marcos Pinheiro de Lima, Luana Lazzari, Lucas dos Santos Fernandez, Leslie Darien Pérez Fernández, Julián Bravo Castillero   +4 more
doaj   +4 more sources

An Implementation of Self-Organizing Maps for Airfoil Design Exploration via Multi-Objective Optimization Technique

Journal of Aerospace Technology and Management, 2016
Design candidates obtained from optimization techniques may have meaningful information, which provides not only the best solution, but also a relationship between object functions and design variables.
SungKi Jung, Won Choi, Luiz S. Martins-Filho, Fernando Madeira   +3 more
doaj   +1 more source