178 research outputs found
Análise da composição físico-química de salames coloniais e bacons comercializados no município de Concórdia, Santa Catarina.
Projeto/Plano de Ação: 01.06.06.001
Controllability on infinite-dimensional manifolds
Following the unified approach of A. Kriegl and P.W. Michor (1997) for a
treatment of global analysis on a class of locally convex spaces known as
convenient, we give a generalization of Rashevsky-Chow's theorem for control
systems in regular connected manifolds modelled on convenient
(infinite-dimensional) locally convex spaces which are not necessarily
normable.Comment: 19 pages, 1 figur
A molecular theory for two-photon and three-photon fluorescence polarization
In the analysis of molecular structure and local order in heterogeneous samples, multiphoton excitation of fluorescence affords chemically specific information and high-resolution imaging. This report presents the results of an investigation that secures a detailed theoretical representation of the fluorescence polarization produced by one-, two-, and three-photon excitations, with orientational averaging procedures being deployed to deliver the fully disordered limits. The equations determining multiphoton fluorescence response prove to be expressible in a relatively simple, generic form, and graphs exhibit the functional form of the multiphoton fluorescence polarization. Amongst other features, the results lead to the identification of a condition under which the fluorescence produced through the concerted absorption of any number of photons becomes completely unpolarized. It is also shown that the angular variation of fluorescence intensities is reliable indicator of orientational disorder
Continuous Uniform Finite Time Stabilization of Planar Controllable Systems
Continuous homogeneous controllers are utilized in a full state feedback setting for the uniform finite time stabilization of a perturbed double integrator in the presence of uniformly decaying piecewise continuous disturbances. Semiglobal strong Lyapunov functions are identified to establish uniform asymptotic stability of the closed-loop planar system. Uniform finite time stability is then proved by extending the homogeneity principle of discontinuous systems to the continuous case with uniformly decaying piecewise continuous nonhomogeneous disturbances. A finite upper bound on the settling time is also computed. The results extend the existing literature on homogeneity and finite time stability by both presenting uniform finite time stabilization and dealing with a broader class of nonhomogeneous disturbances for planar controllable systems while also proposing a new class of homogeneous continuous controllers
Aplicação de fungicidas em sementes de soja e seus efeitos na nodulação e fixação biológica de nitrogênio
bitstream/item/66209/1/32005.pd
Elaboração de embutido fermentado adicionado de carne de frango.
Projeto/Plano de Ação: 11.11.11.111
Electronic Spectra of Cyano-5-phenyltetrazoles
Absorption and luminescence spectra of ortho-, meta- and para-
cyano-5-phenyltetrazole in aqueous solutions at room and low
temperature were measured. Investigations wene carried out in
super acidic (H; = -8) to basic (pR = 12)media. Three dissociation
forms were identified (anion, molecule and cation), and the corresponding acid-base equilibrium constants in the ground state,
speetrophotometrically, and in the first excited singlet state from
the titration curves and by Forster cycle were determined
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