Simulation Computers
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Models of protein and amino acid requirements for cattle
Protein supply and requirements by ruminants have been studied for more than a century. These studies led to the accumulation of lots of scientific information about digestion and metabolism of protein by ruminants as well as the characterization of the dietary protein in order to maximize animal performance. During the 1980s and 1990s, when computers became
R. Bras. Zootec.. Publicado em: 2015-03
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2. AGST (Autonomic Grid Simulation Tool): uma ferramenta para modelagem, simulação e avaliação de abordagens autonômicas para grades de computadores / AGST (Autonomic Grid Simulation Tool): a tool for modeling, simulation and evaluation of autonomic approaches to grids of computers
Computer Grids are characterized by the high dynamism of its execution environment, resources and tasks heterogeneity, and high scalability. These features turn tasks such as configuration, maintenance and failure recovery quite challenging and is becoming increasingly difficult to perform them only by human agents. The autonomic computing term denotes compu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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3. Theoretical investigation of electronic excitation transfer between chlorophylls in light-harvesting antenna of photosystem ii using quantum computers
The excitation energy transfer between chlorophylls in major and minor antenna complexes of photosystem II (PSII) was investigated using quantum Fourier transforms. These transforms have an important role in the efficiency of quantum algorithms of quantum computers. The equation 2n=N was used to make the connection between excitation energy transfers using q
Quím. Nova. Publicado em: 2012
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4. Simulation results and applications of an advection bounded scheme to practical flows
This paper reports experiments on the use of a recently introduced advection bounded upwinding scheme, namely TOPUS (Computers & Fluids 57 (2012) 208-224), for flows of practical interest. The numerical results are compared against analytical, numerical and experimental data and show good agreement with them. It is concluded that the TOPUS scheme is a compet
Comput. Appl. Math.. Publicado em: 2012
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5. Um ambiente computacional para apoio ao ensino de estrutura de processamento / A computational environment to support the teaching of structure processing
A tecnologia dos processadores tem crescido rapidamente nos últimos anos. Em contrapartida, o ensino de arquitetura de computadores tem dificuldade de acompanhar esta evolução. Os livros textos e as aulas ainda utilizam de recursos estáticos que precisam de longas explicações. Esta dinâmica torna-se incompatível, inclusive, com as experiências, como
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/12/2011
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6. Desenvolvimento de procedimento e Soft-Sensors para controle de plantas de PET / Development of procedures and Soft-Sensors for control in PET plants
Neste trabalho são apresentados três estudos distintos de aplicação de Plantwide Control. A primeira aplicação trata-se de um controle antecipativo (feedforward) para controlar os níveis dos reatores na etapa de polimerização, a fim de reduzir suas variabilidades e, consequentemente, a produção de refugo, sendo que, em uma planta de Politereftalat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/10/2011
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7. Preliminary design methodology for multi fuel gas turbine combustors.
The combustors for gas turbines have been traditionally designed through trial and error, which is a time consuming and expensive process. With the development of computers and new simulation techniques the design process has been improved considerably. However, the design of combustors for gas turbines still remains an iterative process, which requires a br
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2010
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8. Medida teórico-experimental da condutividade de meios porosos usando o método de Boltzmann
The hydraulic conductivity is a soil parameter very important to environmental purposes including solute transport and water balance studies. For simulation and planning such parameter has been related to soil physical attributes as easily available as density and texture. With the aim of evaluating experimental and computational conductivities (K) of porous
Publicado em: 2010
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9. Análise do consumo de energia em STMs e uma plataforma de simulação multiprocessada com abstração híbrida / Power consumption analysis of STMs and a hybrid abstraction simulation platform
O surgimento das novas arquiteturas multiprocessadas introduziu novos desafios ao desenvolvimento de software. Dentre estes desafios está a dificuldade de realizar a sincronização adequada entre os fluxos de execução. Para solucionar este problema, novos mecanismos de sincronização com abstrações mais simplificadas tem sido propostos. Seguindo esta
Publicado em: 2010
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10. WOntoVLab: um processo para autoria de laboratórios virtuais baseado em workflows e ontologias
Virtual laboratories can be used by educational institutions to facilitate and enrich the learning of specific procedures, however they can be also used by industry in demonstrations, tests and trainings. Laboratorial practices are normally performed in physical laboratories, but sometimes it is necessary to afford a great amount of money to acquire apparatu
Publicado em: 2010
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11. Preliminary design methodology for multi fuel gas turbine combustors.
The combustors for gas turbines have been traditionally designed through trial and error, which is a time consuming and expensive process. With the development of computers and new simulation techniques the design process has been improved considerably. However, the design of combustors for gas turbines still remains an iterative process, which requires a br
Publicado em: 2010
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12. A simple model for circadian timing by mammals
Circadian timing is structured in such a way as to receive information from the external and internal environments, and its function is the timing organization of the physiological and behavioral processes in a circadian pattern. In mammals, the circadian timing system consists of a group of structures, which includes the suprachiasmatic nucleus (SCN), the i
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-01