Anderson Model
Mostrando 1-12 de 153 artigos, teses e dissertações.
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1. A Finite-Difference Time-Domain Formulation for Modeling Air Ionization Breakdown Streamers
Abstract A numerical model based on the finite-difference time-domain (FDTD) method is developed for calculating discharge currents and fields produced due air ionization between two electrodes. Electric conductivity σ of the ionized channel between two electrodes is calculated using non-linear equations, i.e., σ is obtained using functions of time. The fu
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Virtual Screening of Secondary Metabolites of the Family Velloziaceae J. Agardh with Potential Antimicrobial Activity
The objective of this work was to carry out a bibliographic survey of secondary metabolites isolated from the Velloziaceae family, creating a bank of compounds. After the bank was created, four prediction models for potentially active compounds against pathogenic microorganisms (Candida albicans, Escherichia coli, Pseudomonas aeruginosa and Salmonella sp.) w
J. Braz. Chem. Soc.. Publicado em: 2020-10
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3. Infodemia, Fake News and Medicine: Science and The Quest for Truth
Abstract Background Adherence to antihypertensive medication is a major challenge in the management of hypertension, and non-adherence is an important barrier to effective management of hypertension. Objectives To determine the adherence rate to hypertensive drug treatment and the factors that influence non-adherence in a cohort of the Argentinean popula
Int. J. Cardiovasc. Sci.. Publicado em: 2020-05
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4. Biomass and nitrogen accumulation in white oat (Avena sativa L.) under water deficit
ABSTRACT Knowledge on nitrogen absorption rate by crops can indicate important managements, especially the definition of rates of this nutrient and the best time for topdressing application. This study aimed to evaluate and compare the accumulation of biomass and nitrogen in white oat cultivated under severe, moderate and no water deficit. Treatments consist
Rev. Ceres. Publicado em: 2020-02
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5. Estimativa da resistência característica à tração da madeira na direção paralela às fibras por meio de modelos probabilísticos
RESUMO Para um dimensionamento de estruturas de madeiras dentro das exigências de segurança, a resistência para determinada solicitação mecânica é calculada com base em seu valor característico, correspondente ao percentil de 5% de um determinado modelo de distribuição de probabilidades. A norma brasileira NBR 7190 [1] estabelece, para pequenas amo
Matéria (Rio J.). Publicado em: 25/11/2019
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6. The effect of encapsulants on the heat of sorption in vacuum-dried cajá powder
RESUMO Dados de umidade de equilíbrio do pó da poupa de cajá (PC) (Spondias mombin, L.) com e sem aditivos - 58% de maltodextrina (MD) ou 58% de goma arábica (GA) - foram determinadas em 20; 30; 40 e 50 °C, utilizando o método gravimétrico estática numa faixa de atividade de água de 0,06 a 0,90. As isotermas obtidas foram sigmóide, típica tipo III
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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7. Determinantes de la innovación en empresas propiedad del Estado: evidencia para las empresas públicas de Ecuador
Resumo Os estudos de inovação atualmente não levam em conta e tendem a ignorar a inovação nas empresas públicas (EP) e seus efeitos sobre outras organizações. Evidências recentes mostram que as EP não são necessariamente inferiores às empresas privadas (Kowalski et al., 2013). Este artigo investiga pela primeira vez através de um estudo empíric
Rev. Adm. Pública. Publicado em: 2019-02
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8. Application of artificial neural networks in the prediction of sugarcane juice Pol
RESUMO Técnicas inovadoras que busquem minimizar os custos de produção e a onerosidade de determinadas operações são um dos grandes desafios atualmente no setor sucroenergético. Nesse sentido, objetivou-se estimar os valores do Pol do caldo da cana-de-açúcar, em função do °Brix e do peso do bolo úmido (PBU), utilizando modelagem por redes neurai
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-01
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9. Water sorption isotherms of cooked hams as affected by temperature and chemical composition
Abstract This study was focused on the determination of the chemical composition and experimentally obtaining the sorption isotherms for four samples of commercial cooked ham subjected to simulated commercial storage conditions. The isotherms were determined using the gravimetric method. The mathematical models of Guggenhein, Anderson and de Boer; Brunauer,
Food Sci. Technol. Publicado em: 13/12/2018
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10. A short remark on the modelling of a three-story shear-building structure
Abstract In this note, some remarks on the modelling of a multi-degree-of-freedom system, a three-story shear-building structure, is presented. The modelling of a mechanical system is one of the most important aspects in engineering and physics, since is crucial for the understanding of the system. Besides, the model, if properly made, can be also useful to
Rev. Bras. Ensino Fís.. Publicado em: 21/09/2018
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11. Thermal analysis of steel-concrete composite cross sections via CS-ASA/FA
Abstract When exposed to high temperatures, such as in a fire situation, the physical and resistance characteristics of the materials employed in the structure deteriorate as the temperature increases. This fact promotes a considerable loss in the bearing capacity and stiffness of the structural system. The verification of a structure exposed to fire depends
REM, Int. Eng. J.. Publicado em: 2018-04
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12. Assessment of radio frequency heating on composition, microstructure, flowability and rehydration characteristics of milk powder
Abstract Radio frequency heating (RFH) provides higher efficiency and more uniform heating zone compared with conventional method. The aim of present work is to evaluate the effect of RFH (at 90 °C for 5 or 10 min) on the changes in composition (protein oxidation and fat distribution), microstructure, flow characteristic and rehydration property of infant m
Food Sci. Technol. Publicado em: 30/10/2017