Results 11 to 20 of about 214,024 (241)

A Novel Evaluation of Income Class Boundaries Using Inflection Points of Probability Density Functions: A Case Study of Brazil [PDF]

open access: yesEntropy
Categorizing a population into different income classes is important for creating effective policies and analyzing markets. Our study develops a statistical method based on a nationwide survey of income distribution.
Rafael Bittencourt   +4 more
doaj   +2 more sources

Electronic and structural properties of Möbius boron-nitride and carbon nanobelts [PDF]

open access: yesDiscover Nano
For the development of nanofilters and nanosensors, we wish to know the impact of size on their geometric, electronic, and thermal stabilities. Using the semiempirical tight binding method as implemented in the xTB program, we characterized Möbius boron ...
C. Aguiar, N. Dattani, I. Camps
doaj   +2 more sources

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

open access: yesVetor, 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   +4 more
doaj   +5 more sources

MODELAGEM 3D

open access: yesSITEFA - Simpósio de Tecnologia da Fatec Sertãozinho, 2022
O presente trabalho propôs atualizar o projeto de uma caldeira aquatubular desenvolvido no ano 2019, pelos alunos do curso de Tecnologia em Manutenção Industrial, na Fatec Sertãozinho, para fins de aprendizagem. Dentre as necessidades de atualização foram detectadas a ausência da gaveta para recebimento da fuligem oriunda do processo de combustão ...
Gustavo Coser Monteiro Dias   +2 more
openaire   +2 more sources

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

open access: yesApplied 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   +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

open access: yesScientific 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   +12 more
doaj   +1 more source

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

open access: yesJournal 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   +1 more
doaj   +1 more source

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

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

open access: yesVetor, 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   +4 more
doaj   +1 more source

MODELAGEM MATEMÁTICA

open access: yesEnsino da Matemática em Debate, 2021
Esta pesquisa relata a aplicação de uma sequência didática sobre o conteúdo de função quadrática utilizando o método da modelagem matemática no contexto das metodologias ativas. O objetivo deste trabalho é desenvolver uma sequência didática baseada nos conceitos de modelagem matemática e avaliar suas contribuições no ensino de função quadrática de uma ...
Lorenna Gondim Silva   +2 more
openaire   +2 more sources

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