Now showing items 1-10 of 336
Forced convection heat transfer inside an anisotropic porous channel with oblique principal axes: Effect of viscous dissipation
An analytical study on laminar and fully developed forced convection heat transfer in a parallel-plate horizontal channel filled with an anisotropic permeability porous medium is performed. The principal axis of the ...
Computerized method for nonrigid MR-to-PET breast-image registration
We have developed and tested a new simple computerized finite element method (FEM) approach to MR-to-PET nonrigid breast-image registration. The method requires five-nine fiducial skin markers (FSMs) visible in MRI and PET ...
Analytical solution of Poisson-Boltzmann equation for interacting plates of arbitrary potentials and same sign
Efficient calculation of electrostatic interactions in colloidal systems is becoming more important with the advent of such probing techniques as atomic force microscopy. Such practice requires solving the nonlinear ...
Two-level finite element method with a stabilizing subgrid for the incompressible MHD equations
We consider the Galerkin finite element method (FEM) for the incompressible magnetohydrodynamic (MHD) equations in two dimension. The domain is discretized into a set of regular triangular elements and the finite-dimensional ...
Interaction of sodium dodecyl sulfate with poly(ethyleneimine) in bulk solution and at the air-solution interface
(Taylor & Francis, 2010-01)
Interaction of sodium dodecyl sulfate (SDS) with the cationic polyelectrolyte poly(ethyleneimine) (PEI) was investigated in this study. Turbidity measurements were performed in order to analyze the interaction and complex ...
UV-Visible spectrophotometric quantitative analysis of ternary mixture Using multivariate calibration methods optimized by a genetic algorithm
(Central de Documentare Al Industriei Chimice Ri, 2010-02)
Simultaneous determination of ternary mixtures of caffeine, paracetamol and metamizol in commercial tablet formulations using UV-visible spectrophotometry combined with classical least squares (CLS) and genetic algorithm ...
Development of antioxidant food packaging materials with controlled release properties
In this study, cellulose acetate (CA) films with different morphological features were prepared in order to control the release rates of low molecular weight natural antioxidants, L-ascorbic acid and L-tyrosine. Increasing ...
Gold(i)/Zn(ii) catalyzed tandem hydroamination/annulation reaction of 4-yne-nitriles
(Royal Society of Chemistry, 2010-11)
The tandem hydroamination-annulation reaction of 4-pentyne-nitriles in the presence of amine nucleophiles and a cooperatively operating catalyst system, consisting of Ph3PAuCl and Zn(ClO4)2, provides an efficient route to ...
Multi-wave and rational solutions for nonlinear evolution equations
(De Gruyter, 2010-08)
Nonlinear evolution equations always admit multi-soliton and rational solutions. The Burgers equation is used as an example, and the exp-function method is used to eluciadte the solution procedure.
Algorithmic decision of syllogisms
A syllogism, also known as a rule of inference, is a formal logical scheme used to draw a conclusion from a set of premises. In a categorical syllogisms, every premise and conclusion is given in form a of quantified ...