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Synthesis and characterization of lead zirconate titanate (PZT) obtained by two chemical methods
(2013-08-05)
Lead zirconate titanate (PZT) was synthesized at the ratio of Zr/Ti=52/48 using two synthesis methods: the polymeric precursor method (PPM) and the microwave-assisted hydrothermal method (MAHM). The synthesized materials ...
Numerical simulation of vortex interactions using a fast multipole discrete particle method
(2015-01-01)
The discrete vortex method (DVM) is based on a Lagrangian description of the vorticity transport equation. In order to numerically solve the DVM, one can split the vorticity equation into separate diffusive and convective ...
Comparison between the complete Bayesian method and empirical Bayesian method for ARCH models using Brazilian financial time series
(Sociedade Brasileira de Pesquisa Operacional, 2014)
A note on the application of wazewski’s topological method to an integro: differential equation of volterra type
(Scholars Academic and Scientific Publishers, 2015-11)
The purpose of this note is to generalize the Wazewski’s Topological Method 11, originally stated for ordinary differential equations, to the integro – differential equation of Volterra type (1), under suitable conditions ...
Numerical assessment of mass conservation on a MAC-type method for viscoelastic free surface flows
(2012-12-01)
A numerical study of mass conservation of MAC-type methods is presented, for viscoelastic free-surface flows. We use an implicit formulation which allows for greater time steps, and therefore time marching schemes for ...
O pragmatismo em Kaiser e Ranganathan e o pioneirismo na construção do método analítico-sintético
(2014-01-01)
Considering that Julius Kaiser's Systematic Indexing brought pioneer contributions to the theoretical framework of the subject approach to information, this paper retrieves the foundations of the analiticalsynthetic method ...
Third-degree anomalies of Traub's method
Traub’s method is a tough competitor of Newton’s scheme for solving nonlinear equations as well as nonlinear systems. Due to its third-order convergence and its low computational cost, it is a good procedure to be applied ...
Adjoint method for a tumor invasion PDE-constrained optimization problem in 2D using adaptive finite element method
(Elsevier Science Inc, 2015-11)
In this paper we present a method for estimating an unknown parameter that appears in a two dimensional non-linear reaction-diffusion model of cancer invasion. This model considers that tumor-induced alteration of ...