3,584 research outputs found

    Jornalismo científico em instituição de pesquisa: o dilema entre o segredo e a divulgação.

    Get PDF
    bitstream/CPAP/56448/1/ADM017.pdfFormato eletrônico

    Comunicação empresarial nos dias de hoje.

    Get PDF
    bitstream/CPAP/56465/1/ADM001.pdfFormato eletrônico

    Redes sociais e sistema de informação no meio rural.

    Get PDF
    Este artigo tem por objetivo apresentar e discutir ambientes interativos de comunicação que são construídos no meio rural e a importância de se mensurar tais processos como subsídio à gestão de conteúdos e tomada de decisão. Apresenta como indicativo o sistema de informação e conhecimento tecnológico da cadeia produtiva do arroz no Mato Grosso. Buscou-se contribuir sobre a importância da pesquisa em comunicação como pré-requisito fundamental de interação social que abastece os diversos meios e redes sociais, midiáticas ou não. Observou-se nesta pesquisa que as inter-relações que são visualizadas entre os atores responsáveis por uma série de processos que incluem a produção, transformação, distribuição e consumo possibilitam avaliar a forma de participação nas mídias sociais e demais segmentos de uma determinada cadeia

    Cenários da comunicação e novas tecnologias de informação em centro de pesquisa.

    Get PDF
    A ciência, a tecnologia, a globalização e a sociedade da informação e da comunicação empurram os países, principalmente em fase de desenvolvimento, a terem que enfrentar em um curto espaço de tempo ajustes tecnológicos, políticos, econômicos e educacionais dentro de perspectivas cada vez mais transitórias e mutáveis no cenário atual.bitstream/item/29513/1/hag.pd

    Analysis of the velocity field of granular hopper flow

    Full text link
    We report the analysis of radial characteristics of the flow of granular material through a conical hopper. The discharge is simulated for various orifice sizes and hopper opening angles. Velocity profiles are measured along two radial lines from the hopper cone vertex: along the main axis of the cone and along its wall. An approximate power law dependence on the distance from the orifice is observed for both profiles, although differences between them can be noted. In order to quantify these differences, we propose a Local Mass Flow index that is a promising tool in the direction of a more reliable classification of the flow regimes in hoppers

    Seismic vulnerability of churches in Faial and Pico islands, Azores

    Get PDF
    Earthquakes represent one of the main cause of serious damage and loss of historic and architectural heritage. Interventions to preserve these building should start with a careful knowledge and assessment of their seismic vulnerability, in order to support any needed retrofitting and strengthening measures. This paper proposes a procedure to register and diagnose of the level of damage on churches after the occurrence of an earthquake, and also to assess the seismic vulnerability of this type of construction. This procedure was applied to sixteen churches in the Azores islands which were hit by the July 9th 1998 earthquake. Belfries of church towers are elements with a particular seismic vulnerability. For this reason, and based on the Italian methodology proposed by the Linee Guida (2006), it is applied to belfries of two churches from Pico (Azores), a simplified mechanical model for assessment of seismic vulnerability of this type of structures

    Quantum Critical Point in the Spin Glass-Kondo Transition in Heavy Fermion Systems

    Full text link
    The Kondo-Spin Glass competition is studied in a theoretical model of a Kondo lattice with an intra-site Kondo type exchange interaction treated within the mean field approximation, an inter-site quantum Ising exchange interaction with random couplings among localized spins and an additional transverse field in the x direction, which represents a simple quantum mechanism of spin flipping. We obtain two second order transition lines from the spin-glass state to the paramagnetic one and then to the Kondo state. For a reasonable set of the different parameters, the two second order transition lines do not intersect and end in two distinct QCP.Comment: 20 pages; 1 figure; to appear in Physical Review

    Classical and quantum coupled oscillators: symplectic structure

    Full text link
    We consider a set of N linearly coupled harmonic oscillators and show that the diagonalization of this problem can be put in geometrical terms. The matrix techniques developed here allowed for solutions in both the classical and quantum regimes.Comment: 27 pages, 6 figure
    corecore