In this study authors solve the fundamental set of equations of the hydrodynamic theory of lubrication, namely are: the continuity equation, conservation of momentum and conservation of energy for the case of stationary slide bearings lubrication with a thixotropic lubricant. Adoption of assumption of steady flow loads in the considered phenomenon to the changes absence of the flow parameters i...

We compare four different estimation methods for the coefficients of a linear structural equation with instrumental variables. As the classical methods we consider the limited information maximum likelihood (LIML) estimator and the two-stage least squares (TSLS) estimator, and as the semi-parametric estimation methods we consider the maximum empirical likelihood (MEL) estimator and the generali...

We consider the development of an eight order Adam’s type method, with A-stability property discussed by expressing them as a one-step method in higher dimension. This makes it suitable for solving variety of initial-value problems. The main method and additional methods are obtained from the same continuous scheme derived via interpolation and collocation procedures. The methods are then appli...

A simple and accurate method of analysis to determine Sitagliptin Phosphate (STG) and Simvastatin(SMV) in combined dosage forms was developed using simultaneous equation method at 267.0nm for Simvastatin and 238.0 nm for Simvastatin in spectra of their solutions in methanol: water(90:10). The calibration curves were linear [correlation coefficient (r) = 0.986 for STG and 0.998 for SMV] in conce...

In this present paper, a novel, sensitive, UVSpectrophotometric simultaneous equation method was proposed for the estimation of Losartan Potassium (LOS.P) and Hydrochlorothiazide (HTZ) in bulk and tablet dosage form. Water: Methanol in the ratio of 95:5 v/v was used as a solvent which exhibits maximum absorption at 215nm for LOS.P and 272nm for HTZ. Beers law was obeyed over the linear range fo...

A simple, rapid and precise method is developed for the quantitative simultaneous determination of Ezetimibe and Simvastatin in combined pharmaceutical-dosage forms. Two methods are described for the simultaneous determination of Ezetimibe and Simvastatin. The first method was based on UVSpectrophotometric determination of two drugs, using simultaneous equation method. It involves absorbance me...

We compare four different estimation methods for a coefficient of a linear structural equation with instrumental variables. As the classical methods we consider the limited information maximum likelihood (LIML) estimator and the two-stage least squares (TSLS) estimator, and as the semi-parametric estimation methods we consider the maximum empirical likelihood (MEL) estimator and the generalized...

When solving l2 optimization problems based on linear filtering with some regularization in signal/image processing such asWiener filtering, the fast Fourier transform (FFT) is often available to reduce its computational complexity. Most of the problems, in which the FFT is used to obtain their solutions, are based on single variable equations. On the other hand, the Karush-Kuhn-Tucker (KKT) sy...