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Analysis and mixed-primal finite element discretisations for stress-assisted diffusion problems
(2018)
We analyse the solvability of a static coupled system of PDEs describing the diffusion of a solute into an elastic material, where the process is affected by the stresses exerted in the solid. The problem is formulated in ...
Dual reciprocity boundary element method in Laplace domain applied to anisotropic dynamic crack problems
(Pergamon-elsevier Science LtdOxfordInglaterra, 2003)
Development of an absolute method for efficiency calibration of a coaxial HPGe detector for large volume sources
(Elsevier, 2015)
In this work an absolute method for the determination of the full energy peak efficiency of a gamma spectroscopy system for voluminous sources is presented. The method was tested for a high-resolution coaxial HPGe detector ...
Influence of doping on the preferential growth of alpha-MoO3
(Elsevier B.V. Sa, 2008-07-14)
MoO3 is a lamellar material with applications in different areas, as solid lubricants, catalysis, solar cells, etc. In the present work, MoO3 powders, synthesized by the polymeric precursor method, were doped with nickel ...
Influence of doping on the preferential growth of alpha-MoO3
(Elsevier B.V. Sa, 2008-07-14)
MoO3 is a lamellar material with applications in different areas, as solid lubricants, catalysis, solar cells, etc. In the present work, MoO3 powders, synthesized by the polymeric precursor method, were doped with nickel ...
Boundary Element Method Analysis of Three-Dimensional Thermoelastic Fracture Problems Using the Energy Domain Integral
(American Society of Mechanical Engineers, 2006-11)
A boundary element method (BEM) implementation of the energy domain integral (EDI) methodology for the numerical analysis of three-dimensional fracture problems considering thermal effects is presented in this paper. The ...
Design and construction a four-point method system for electrical characterization of thin films with photovoltaic applications
(2015-10-21)
We present a system for measuring the sheet resistance by the four point method in semiconductor thin films. The system includes: a sample holder, a head holder probes, two electrometers Keithley Model 6517B of high ...
Cloud point extraction to avoid interferences by structured background on nickel determination in plant materials by FAAS
(ROYAL SOC CHEMISTRY, 2009)
An analytical procedure based on microwave-assisted digestion with diluted acid and a double cloud point extraction is proposed for nickel determination in plant materials by flame atomic absorption spectrometry. Extraction ...
Acoplamento SPIM-FEM adaptativo para modelos de degradação elástica
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ESTRUTURASPrograma de Pós-Graduação em Engenharia de EstruturasUFMG, 2022-09-28)
This thesis proposes a new approach to performing a physically nonlinear analysis of structures constituted by quasi-brittle material employing a coupling between the smoothed point interpolation method (SPIM) and the ...