نتایج جستجو برای: polynomial fitting

تعداد نتایج: 142953  

Journal: :Journal of physics 2023

Abstract Focusing on the problem of precise determination laser illumination starting time for air-to-ground missiles (AGMs), a numerical calculation method based multidimensional polynomial fitting is proposed in this paper. The presented takes various factors including temperature, altitude, and platform velocity into consideration. Influence by parameters delivered step through feature point...

A. Hosseini A. Kamkar Rouhani A. Roshandel J. Hanachi M. Ziaii R. Gholami

Porosity is one of the key parameters associated with oil reservoirs. Determination of this petrophysical parameter is an essential step in reservoir characterization. Among different linear and nonlinear prediction tools such as multi-regression and polynomial curve fitting, artificial neural network has gained the attention of researchers over the past years. In the present study, two-dimensi...

ABSTRACT Response surface methodology was employed to optimize the adsorption parameters of Amaranth onto magnetic layer double hydroxide (Fe3O4/ZnFe-LDH). Such optimization was undertaken to ensure a high efficiency over the experimental ranges employed, and to evaluate the interactive effects of the initial concentration of Amaranth, pH, adsorbent dosage, temperature and contact time on...

2009
S. M. Meyers A. Eissa A. H. Wilman

Introduction Susceptibility weighted imaging (SWI) is an emerging technique that combines the magnitude and phase images to emphasize blood vessels and iron-containing structures [1]. Phase images offer an additional source of contrast due to susceptibility contrast; however, they require extensive reconstruction to minimize wrap effects due to field inhomogeneities and susceptibility differenc...

Abdel-Maaboud I. Mohamed Adissu Alemayehu Adnan A. Bekhit, Ariaya Hymete

A simple, accurate and precise HPTLC- densitometry method for the simultaneousdetermination of abacavir, lamivudine and zidovudine in pharmaceutical tablet has beendeveloped. Separation of tablet components was performed on aluminum backed HPTLC plates(silica gel 60 F254 20×20 cm with 0.2 mm thickness, Camag, Muttenz, Switzerland ) usingmethanol : chloroform : acetonitrile (4 : 8 : 3 v/v). Good...

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