978 resultados para Robust Stochastic Optimization
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Cross-Flow, Radial Jets Mixing, Temperature Homogenization, Optimization, Combustion Chamber, CFD
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Seismic analysis, horizon matching, fault tracking, marked point process,stochastic annealing
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Passive trip system, reactor trip, runaway reaction, batch reactor
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Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2009
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Magdeburg, Univ., Fak. für Informatik, Diss., 2009
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Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2010
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Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2011
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Magdeburg, Univ., Fak. für Mathematik, Habil.-Schr., 2012
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Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2012
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Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2013
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Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2015
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Magdeburg, Univ., Fak. für Informatik, Diss., 2015
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Otto-von-Guericke-Universität Magdeburg, Fakultät für Mathematik, Univ., Dissertation, 2015
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In the Cerrado vegetation, where the seasonal is well defined, rainfall has an important role in controlling the flow of streams and consequently on the structure of macroinvertebrates community. Despite the effects of rainfall associated with seasonality are well studied, little is known about the effects of stochastic rains on the community. In the present study we evaluated the structure and faunal composition of four first-order streams in Central Brazil during the dry season in two years, with and without stochastic rains. Community sampling was done by colonization of boards of high density polyethylene (HDPE), removed after one month submerged in streams. Analysis of Variance (ANOVA) performed indicated no difference in rarefied richness between the two periods, different from numeric density of organisms that was higher in the period without disturbance; moreover, the Detrended Correspondence Analysis (DCA) revealed differences in faunal composition between the two periods. Our results indicate that stochastic rainfall is an important factor in structuring the macroinvertebrates community in studied region.
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We consider linear stochastic differential-algebraic equations with constant coefficients and additive white noise. Due to the nature of this class of equations, the solution must be defined as a generalised process (in the sense of Dawson and Fernique). We provide sufficient conditions for the law of the variables of the solution process to be absolutely continuous with respect to Lebesgue measure.