2,815 research outputs found
THE ADO METHOD FOR SOLVING ONE-DIMENSIONAL DEEP-PENETRATION TRANSPORT PROBLEMS
In this work, the Analytical Discrete Ordinate method (ADO method) is used to solve deep-penetration transport problems in one-dimensional Cartesian geometry, subject to isotropic and linear anisotropic scattering effects. The regime is considered permanent, the media are homogeneous, and the fluxes are caused by sources located on the boundaries of the domain. In addition, the energy fluctuations will be considered as not significant, characterizing the phenomena as monoenergetic problems. In order to validate the code, method and provide benchmark results, some test problems will be treated and results will be discussed. In particular, the ADO method generated fairly accurate results when compared to other methods based on SN approaches, at a relatively low computational cost
Grain yield adaptability and stability of blackeyed cowpea genotypes under rainfed agriculture in Brazil.
The present study aimed to evaluate the grain yield adaptability and stability of 20 blackeyed cowpea genotypes under rainfed agriculture in North, Northeastern and Central/Western Brazil
Generalized Ladder Operators for Shape-invariant Potentials
A general form for ladder operators is used to construct a method to solve
bound-state Schr\"odinger equations. The characteristics of supersymmetry and
shape invariance of the system are the start point of the approach. To show the
elegance and the utility of the method we use it to obtain energy spectra and
eigenfunctions for the one-dimensional harmonic oscillator and Morse potentials
and for the radial harmonic oscillator and Coulomb potentials.Comment: in Revte
Desempenho da cultura do algodoeiro herbáceo no Município de São Raimundo das Mangabeiras, MA, nos anos agrícolas de 2006/2007 e 2007/2008.
bitstream/CPAMN-2010/24267/1/CT220.pd
Desempenho de cultivares e linhagens de algodoeiro herbáceo na microrregião de Chapadinha, MA, nos anos agrícolas de 2006/2007 e 2007/2008.
bitstream/item/31208/1/CT222.pd
Alguns aspectos relacionados a resposta ovariana de vacas superovuladas dos grupos genéticos Canchim e Nelore (resultados preliminares).
Estudou-se a resposta a superovulação com diferentes dosagens de FSH-Pe prostaglandina em doadoras dos grupos geneticos Canchim e Nelore
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