Discrete Time
Mostrando 1-12 de 547 artigos, teses e dissertações.
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1. Mathematical Modeling of the Film Influence on the Salting Time of Mozzarella Cheese in a Static and Dynamic System: Application of Artificial Neural Networks of the Multilayer Perceptron Type
The NaCl and KCl diffusion in the film formed on the cheese surface during salting was simulated by the finite element method. The time and salts concentration values on the cheese surface were determined, tabulated, and presented to the multilayer perceptron neural network (MLP) for the regression modeling. The samples were divided into 70, 15 and 15% for t
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. A DISCRETE STOCHASTIC MODEL TO DETERMINE FOOD QUALITY BY USING SIMULATION: A STRAWBERRY CASE STUDY
ABSTRACT The agri-food supply chain (AFSC) sets a series of challenges in the production, storage, distribution, and transportation processes, as the market's requirements for fresh food combine food quality and safety attributes. This research suggests a discrete event modeling to study the behavior of food quality in all supply chains (SCs) in terms of tem
Eng. Agríc.. Publicado em: 2020-12
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3. Discrete element modeling of non-spherical particles using a spherical shape
Abstract Real non-spherical particles can be modeled using the Discrete Element Method (DEM) with sphere clusters, superquadrics, or polyhedral particles. However, in applications involving a considerable number of particles, the analysis can become impracticable. The goal of this study is to demonstrate how well spherical particles can reproduce the flow of
REM, Int. Eng. J.. Publicado em: 2020-09
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4. Clinical and anatomopathological aspects of patients with hantavirus cardiopulmonary syndrome in Uberaba, Minas Gerais, Brazil
ABSTRACT The hantavirus cardiopulmonary syndrome is considered an emerging disease in the Americas. Since 1993, thousands of cases have been reported from different countries, but mainly from Brazil. This study aims to describe some epidemiological, clinical and anatomopathological aspects of patients with hantavirus who presented poor outcome and were autop
Rev. Inst. Med. trop. S. Paulo. Publicado em: 10/10/2019
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5. A dinâmica da atenção governamental sobre as políticas de saúde no Brasil: equilíbrio e pontuações nas primeiras décadas pós-redemocratização (1986-2003)
Resumo Este trabalho tem o objetivo central de mapear e analisar a atenção de alguns atores e instituições sobre as políticas de saúde no Brasil entre 1986 e 2003. Esse modelo de pesquisa sobre agenda governamental é conhecido sob o termo “dinâmica de políticas” (policy dynamics) e analisa o processo de mudança de políticas públicas por meio
Saude soc.. Publicado em: 07/10/2019
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6. Direct sequencing of blocks in stochastic models with multi-mines and multi-destinations
Abstract Mining Scheduling is the one that maximizes profit from mining over time. By means of computational methods, the deposit is discretized in blocks and algorithms are used to consummate this objective. The methods that are widely known nowadays for mining scheduling optimization of a discrete block model were based on graph theory, and among those mos
REM, Int. Eng. J.. Publicado em: 16/09/2019
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7. Adaptive Filtration of Parameters of the UAV Movement Based on the TDOA-Measurement Sensor Networks
ABSTRACT: In modern conditions unmanned aerial vehicles (UAVs) generate new classes of threats, including their use for terrorist purposes. A feature of modern UAVs is the ability to perform sudden maneuvers and to keep the same position in the point in space. For the description of the UAV movement with various types of maneuver it is used a rectangular coo
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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8. Motor performance of children and adolescents with cerebral palsy during the execution of computer tasks with different peripherals
RESUMO Objetivo: avaliar a eficácia de uso de diferentes dispositivos de entrada para o acesso ao computador por crianças e adolescentes com paralisia cerebral e verificar a relação do desempenho com a idade e o nível de classificação motora. Métodos: participaram do estudo 14 crianças e adolescentes com paralisia cerebral, com idade entre 6 e 14
Rev. CEFAC. Publicado em: 15/08/2019
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9. STOCHASTIC DISCRETE LOT-SIZING WITH LEAD TIMES FOR FUEL SUPPLY OPTIMIZATION
ABSTRACT We address the problem of expected cost minimization of meeting the uncertain fuel demand during a time planning horizon, where supply is provided by selecting discrete shipments with lead times. Due to uncertainty and the passage of time, corrective actions can be taken such as cancellation and postponement on supply of shipments with associated co
Pesqui. Oper.. Publicado em: 09/05/2019
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10. DESONERAÇÃO DA CESTA BÁSICA OU EXPANSÃO DO PROGRAMA BOLSA FAMÍLIA? UMA SIMULAÇÃO POR EQUILÍBRIO GERAL COMPUTÁVEL
RESUMO Com o objetivo de reduzir a pobreza, a partir do ano de 2013 o governo brasileiro promoveu a desoneração da cesta básica e aumentou o valor do Programa Bolsa Família (PBF). Este trabalho busca analisar qual das duas opções de política teria maior impacto sobre as famílias mais pobres caso os recursos destinados às duas fossem iguais. Em segui
Rev. econ. contemp.. Publicado em: 25/03/2019
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11. Real-time premature ventricular contractions detection based on Redundant Discrete Wavelet Transform
Abstract Introduction Premature Ventricular Contraction (PVC) is among the most common types of ventricular cardiac arrhythmia. However, it only poses danger if the person suffers from a heart disease, such as heart failure. Hence, this is an important factor to consider in heart disease people. This paper presents an ECG real-time analysis system for PVC
Res. Biomed. Eng.. Publicado em: 26/07/2018
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12. Comportamiento magnético del acero AISI 304 en ensayos de tracción uniaxial
ABSTRACT During the magnetization process of a ferromagnetic material, the magnetic domain walls are forced to move due to the magnetic field influence. The domain walls must overcome the stress produced by the pinning sites (grain boundary, dislocations, inclusions, etc.), producing discrete jumps in the magnetization. These jumps can be detected with a sen
Matéria (Rio J.). Publicado em: 19/07/2018