21,536 research outputs found

    O que é o processamento de cereais por extrusão?

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    bitstream/item/67885/1/2011-283.pd

    Snacks de cereais adicionados de proteínas do soro de leite.

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    bitstream/item/56045/1/2011-286.pd

    Structural and dynamical properties of a quasi-one-dimensional classical binary system

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    The ground state configurations and the \lq{}\lq{}normal\rq{}\rq{} mode spectra of a quasiquasi-one-dimensional (Q1D) binary system of charged particles interacting through a screened Coulomb potential are presented. The minimum energy configurations were obtained analytically and independently through molecular dynamic simulations. A rich variety of ordered structures were found as a function of the screening parameter, the particle density, and the ratio between the charges of the distinct types of particles. Continuous and discontinuous structural transitions, as well as an unexpected symmetry breaking in the charge distribution are observed when the density of the system is changed. For near equal charges we found a disordered phase where a mixing of the two types of particles occurs. The phonon dispersion curves were calculated within the harmonic approximation for the one- and two-chain structures.Comment: 11 pages, 11 fig

    A Search for Molecular Gas in GHz Peaked Spectrum Radio Sources

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    We present searches for molecular gas (CO, OH, CS, and Ammonia) in six GHz Peaked Spectrum (GPS) radio sources. We do not detect gas in any source and place upper limits on the mass of molecular gas which are generally in the range 1E9 to a few times 1E10 solar masses. These limits are consistent with the following interpretations: (1) GPS sources do not require very dense gas in their hosts, and (2) The GPS sources are unlikely to be confined by dense gas and will evolve to become larger radio sources
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