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Modelagem por elementos finitos e análise experimental aplicadas ao estudo da dinâmica de um Rotor Jeffcott
(Universidade Estadual Paulista (Unesp), 2016-09-16)
O presente trabalho estuda a dinâmica de rotores e em particular a de um rotor modelo de Jeffcott. Para tanto, foi utilizada uma bancada experimental que consiste de um rotor montado sobre um eixo apoiado por mancais de ...
El entorno natural como recurso didáctico para la enseñanza de las Ciencias Naturales en el sexto año de Educación General Básica de la Unidad Educativa San Pablo de Guarainag, periodo lectivo: 2015 - 2016
(2016-06)
As a result of this investigation work I could determine two important aspects: First, the limited or does not nearly use of the natural environment for the Natural Science teaching - process. Second, the benefits offered ...
Um exemplo de negação do conceito de elemento na filosofia natural
(2013)
The focus of this work is to present an example of refutation of the concept of element inside the seventeenth-century scientific revolution, mainly through Robert Boyle’s The Sceptical Chymist. On the first section of ...
Eigenproblems in timber structural elements with uncertain properties
(Springer, 2016-07)
A stochastic model of sawn timber structural elements of Argentinean Eucalyptusgrandis is applied to the study of two eigenproblems. One is the free vibrations problem which, after being solved, yields the natural frequencies ...
Aprimoramento de uma estrutura Baja por elementos finitos
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia MecânicaUTFPR, 2016-11-03)
In this study, the structure of Procobaja 2016 BAJA SAE team, applying modal analysis for free-free condition to obtain the natural frequencies of the current structure and modified structures based on the first one. It ...
Parallel finite element algorithm with domain decomposition for three-dimensional magnetotelluric modelling
(Elsevier Science, 2000-05)
We present a new finite element (FE) method for magnetotelluric modelling of three-dimensional conductivity structures. Maxwell's equations are treated as a system of first-order partial differential equations for the ...
Major- and trace-element composition of olivine, perovskite, clinopyroxene, Cr-Fe-Ti oxides, phlogopite and host kamafugites and kimberlites, Alto Paranaiba, Brazil
(MINERALOGICAL ASSOC CANADA, 2008)
An integrated whole-rock petrographic and geochemical study has been carried out on kamafugites and kimberlites of the Late Cretaceous Alto Paranaiba igneous province, in Brazil, and their main minerals, olivine, clinopyroxene, ...
First report of a B chromosome in a natural population of Astyanax altiparanae (Characiformes, Characidae)
(Sociedade Brasileira de Genética, 2008-01-01)
Several species of the genus Astyanax have already been genetically studied, and B-chromosomes have been considered to be an interesting feature in some species of this group. In the present paper we report, for the first ...
First report of a B chromosome in a natural population of Astyanax altiparanae (Characiformes, Characidae)
(Sociedade Brasileira de Genética, 2008-01-01)
Several species of the genus Astyanax have already been genetically studied, and B-chromosomes have been considered to be an interesting feature in some species of this group. In the present paper we report, for the first ...