Open Clusters
Mostrando 1-12 de 202 artigos, teses e dissertações.
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1. Study of Glass Forming on Cu60.0Zr32.5Ti7.5 Alloy by Molecular Dynamics Simulation
This paper presents the results of Molecular Dynamics (MD) simulations of Cu60.0Zr32.5Ti7.5 alloy through the open source code LAMMPS. Amorphous samples were produced by quenching the molten metal from 2300 to 300 K. The pair distribution functions of the liquid and solid were calculated. Moreover, the atomic short-range order at 800, 700 and 300 K was obtai
Mat. Res.. Publicado em: 21/12/2017
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2. Aspectos da evolução de aglomerados estelares
No presente trabalho investigamos a natureza de 98 sobredensidades estelares do catálogo de Froebrich, Scholz, e Raftery (FSR) projetados ria direção do andcentro da Galáxia, no setor 160°
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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3. Proposta de uma métrica de avaliação para parque tecnológico sob a ótica de um sistema de inovação estruturante. / Proposal of a metric one of evaluation for technological park under the optics of a system of estruturante innovation.
Science Parks are environments that foster innovation. In this sense, they are tools that aim to turn knowledge into wealth. The organization of the park has to be specifically designed to comply with this specific mission. Thus, there is a need to create an environment conducive to innovative activity of organizations. A Science Park must have as its missio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/10/2011
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4. Explorando programação híbrida no contexto de clusters de máquinas NUMA
Normalmente, utiliza-se o paradigma de troca de mensagens quando se está programando uma arquitetura do tipo cluster. Porém, quando se deseja programar uma máquina multiprocessada, é requirido o paradigma de memória compartilhada. Recentemente, o surgimento de novas tecnologias possibilitou a criação de clusters com nós multiprocessados. Nestas arqui
Publicado em: 2011
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5. Discovery of hidden connections in networks of recommendations using online social networks / Descoberta de conexões ocultas em redes de recomendações usando redes sociais online
In the Internet age, companies are increasingly using electronic messages to perform viral marketing campaigns. That happens because, for decades, the human characteristic of attributing greater value to products purchased previously by friends or acquaintances than to those chosen by chance has been proven. However, measuring the efficiency of viral marketi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/09/2010
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6. Mutations in retrotransposon AtCOPIA4 compromises resistance to Hyaloperonospora parasitica in Arabidopsis thaliana
Retrotransposons (RTEs) are a principal component of most eukaryotic genomes, representing 50%-80% of some grass genomes. RTE sequences have been shown to be preferentially present in disease resistance gene clusters in plants. Arabidopsis thaliana has over 1,600 annotated RTE sequences and 56 of these appear to be expressed because of the exact expressed se
Genetics and Molecular Biology. Publicado em: 11/12/2009
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7. PATRÓN ESPACIAL DE LA REGENERACIÓN DE Aspidosperma polyneuron Müll. Arg. EN UN BOSQUE SOMETIDO A APROVECHAMIENTO SELECTIVO EN EL NORTE DE LA PROVINCIA DE MISIONES
ABSTRACT The spatial pattern of regeneration of Aspidosperma polyneuron Müll.Arg. was studied in a remnant sector of the Paranaense forest in the Misiones province, Argentina. All individuals were mapped in a 210 m x 100 m area (2,1 ha). Univariate and bivariate point pattern analyses were used by means of Wiegand and Moloney O ring index. Regeneration show
Ciênc. Florest.. Publicado em: 2009-09
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8. Metodologia AGOA: a modelagem de clusters de hidratação no complexo aziridina···ácido fluorídrico
We present a theoretical study of solvent effect on C2H5N···HF hydrogen-bonded complex through the application of the AGOA methodology. By using the TIP4P model to orientate the configuration of water molecules, the hydration clusters generated by AGOA were obtained through the analysis of the molecular electrostatic potential (MEP) of solute (C2H5N···
Química Nova. Publicado em: 2009
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9. VXDL: A LANGUAGE FOR INTERCONNECTION AND RESOURCES SPECIFICATION IN VIRTUAL GRIDS / VXDL: UMA LINGUAGEM PARA DESCRIÇÃO DE INTERCONEXÕES E RECURSOS EM GRADES VIRTUAIS
Grid computing has been defined as an infrastructure integrator of distributed resources. Although it is already used on a large scale in many areas, this type of computational infrastructure is still an area of active research, with many open questions. Today, new research works investigate the application of resources virtualization techniques to perform t
Publicado em: 2008
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10. Development of a database for classification and analysis of type IV secretion systems / Desenvolvimento de um banco de dados para classificação e análise de sistemas de secreção do tipo IV bacteriano
The type IV secretion system can be classified as a large family of macromolecule transporters divided in three recognized sub-families involved in different bacterial functions. The major sub-family of T4SS is the conjugation system, which allows transfer of genetic material as a nucleoprotein via cell contact among bacteria. Analogously to bacterial conjug
Publicado em: 2008
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11. Infra-estrutura de componentes paralelos para aplicaÃÃes de computaÃÃo de alto desempenho / Infrastructure of parallel components for applications of computation of high performance
The development of new High Performance Computing (HPC) application has demanded a set of tools for reconciling high level of a abstraction with software integration. In particular, we are interested in component-based solutions presented by the scientific community in the last years. Components have been applied to meet new requirements of high performance
Publicado em: 2008
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12. Vacancies in carbon nanotubes: electronic, structural and transport properties / Vacâncias em nanotubos de carbono: propriedades eletrônicas, estruturais e de transporte
The main purpose of this dissertation is the study of the electronic and structural properties in the presence of different types of vacancies, in one of the most promising materials for nanoelectronics, carbon nanotubes. The defects studied in this work are monovacancy and multivacancies in (5, 5) armchair carbon nanotubes. For that purpose perform quantum
Publicado em: 2008