Multi Level Simulation
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Synthesis of Sparse Arrays Based On CIGA (Convex Improved Genetic Algorithm)
Abstract In this paper, a novel hybrid algorithm on beam pattern synthesis of sparse arrays is proposed, which aims at minimizing the peak sidelobe level (PSLL). Sparse arrays can provide higher spatial resolution and relatively lower sidelobe than general arrays, but it is necessary to solve the multi-constraint problem of nonconvex nonlinear. Thus, we prop
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-12
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2. Numerical Study of Vibro-Acoustic Responses of Un-Baffled Multi-Layered Composite Structure under Various End Conditions and Experimental Validation
Abstract This article presents the vibro-acoustic modeling and analysis of un-baffled laminated composite flat panels subjected to harmonic point load under various support conditions. The frequency values of the panel are obtained by using simulation model through the commercial finite element package (ANSYS) via batch input technique. Initially, the rate o
Lat. Am. j. solids struct.. Publicado em: 2017-08
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3. O uso de redes neurais auto-organizÃveis na anÃlise da transferÃncia de conhecimentos prosÃdico em aprendizes brasileirios de lÃngua inglesa / The use of self-organizing artificial neural networks for the analysis of prosodic knowledge in Brazilian learner of English
The objective of this dissertation was to investigate how the prosodic knowledge is organized in an early stage of L2 acquisition in Brazilian learners of English with the help of a connectionist neural network. The approach proposed in this research is first, to quantify the utterances of L2 learners in the form of LPC coefficients and other linguistic/phon
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/10/2010
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4. Projeto e implementação da distribuição de um simulador multinível / Design and implementation of the distribution of a multi-level simulator
O uso de ferramentas de simulação para validar projetos de sistemas digitais é uma prática comum, devido às vantagens que estas trazem ao desenvolvimento destes sistemas, tais como: custo, segurança, velocidade e acuracidade. Porém, a simulação seqüencial de alguns sistemas pode levar várias horas ou até mesmo dias, fazendo desta maneira surgir a
Publicado em: 2010
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5. Impactos econômicos de políticas de mudança climática na economia brasileira: um estudo a partir de um modelo de equilíbrio geral computável / Economic impacts of policies on climate change mitigation in the Brazilian economy: a study based on a computable general equilibrium model
The objective of this dissertation is to estimate the economic impacts of climate policy scenarios for Brazil. More specifically, it is intended through a computable general equilibrium model to see how some economic variables respond to the simulation of some policies to mitigate climate change by Brazil. For this purpose, it was used the Emissions Predicti
Publicado em: 2010
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6. Real-time distributed simulation of an attitude and orbit control system (AOCS) for the multi-mission platform (MMP) by using the high level architecture (HLA) / Simulação distribuída em tempo-real de um sistema de controle de atitude e órbita para a plataforma multi-missão utilizando a arquitetura HLA
Neste trabalho apresenta-se o estudo e o desenvolvimento de uma simulação distribuída em Tempo Real de um Sistema de Controle de Atitude e de Órbita (SCAO) para a Plataforma Multi-Missão (PMM) em seu Modo Nominal de Operação utilizando a arquitetura HLA (High Level Architecture). A PMM é uma plataforma atualmente em desenvolvimento no Instituto Nacio
Publicado em: 2009
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7. Extensões da estatística scan espacial utilizando técnicas de otimização multi-objetivo
This work presents three new extensions of Kulldorffs Spatial Scan Statistic for the detection and inference of spatial clusters. Consider a map divided into m regions with known populations at risk and number of cases of some disease. We would like to know if the cases are randomly distributed over the m regions or not; if the cases are not randomly distrib
Publicado em: 2009
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8. Performance estimation of on-chip communication structures using transaction level modeling. / Estimativas de desempenho da estrutura de comunicação de SoC a partir de modelos de transações.
A complexidade crescente (tanto da funcionalidade como da arquitetura) dos sistemas eletrônicos digitais sobre silício (conhecidos na literatura como System-on-Chip, SoC) exige novas metodologias que permitam diminuir seu tempo de desenvolvimento. O projeto no nível de sistemas (SLD) é proposto para aumentar a eficiência do projeto de SoC. SLD exige nov
Publicado em: 2009
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9. Essays in Applied Econometrics
This thesis is divided in three essays. The first essay examines the reactions by incumbent airlines to the threat and actual entry of the low-cost carrier Gol in the Brazilian domestic air transport market. By estimating the reactions in prices, quantities and supply variables, it investigates the plausibility of theories of entry deterrence and accommodati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 200810
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10. Implant supported prosthesis : influence of abutment and porcelain firing cycles on misfit and stress around implants / Proteses fixas implanto-retidas : influencia do pilar intermediario e dos ciclos de cocção da ceramica nos desajustes e nas tensões induzidas as fixações
It is speculated that porcelain firing cycles cause an increase on marginal misfit. This effect is imagined to origin an increase on strains around implants, when screwing the metallic frameworks, and it is supposed to be decreased by the use of an abutment between the framework and the implant. Thus, the aim of this study was to evaluate the influence of th
Publicado em: 2008
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11. Efeito do tipo de revestimento estetico e da eletroerosão sobre a desadaptação de infra-estruturas implanto-suportadas fundidas em titanio c.p / The influence of the veneering application and Spark erosion on the misfit level of implant-supported frameworks
The demand for a passive fit of frameworks for osseointegrated endousseous implants abutments is well known, because the tightening of an inaccurate framework to the abutments can transmit stress to the bone-metal interface. The purpose of the present study was to evaluate the influence of the veneering application and porcelain firing cycle on the misfit le
Publicado em: 2007
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12. Efeito do tipo de revestimento estetico e da eletroerosão sobre a desadaptação de infra-estruturas metalicas implantossuportadas / Influence of vennering material and spark erosion on marginal misfit of implant-suported frameworks
The demand for a passive fit of frameworks for osseointegrated endousseous implants abutments is well known, because the tightening of an inaccurate framework to the abutments can transmit stress to the bone-metal interface. The purpose of the present study was to evaluate the influence of the veneering application and porcelain firing cycle on the misfit le
Publicado em: 2007