Results 51 to 60 of about 11,636,186 (273)
Journal of Surfactants and Detergents, EarlyView.Materials and main results of the study. ABSTRACT Surfactant–polymer (SP) flooding is a promising Enhanced Oil Recovery (EOR) technique, combining improved displacement from surfactants with enhanced sweep efficiency from polymers. This study investigates two SP systems based on the biopolymer scleroxanthan (a blend of sclerotium gum and xanthan gum ...
Raíssa T. R. Carvalho +6 more
wiley +1 more source
Use Sequences to improve the numerical Riemann method to calculate integrals [PDF]
مجلة التربية والعلم, 1999 The purpose of this research is the improvement of the numerical Riemann's integral using series. Riemann's method displayed in this research and we suggested an algorithm to improve the convergence using Geometric series, p-series and Taylor series for ...
Mohamةed Altaie
doaj +1 more source
A note on Riemann’s method applied to the diffusion equation [PDF]
Quarterly of Applied Mathematics, 1950 The method of Riemann (or Green) is applied to the integration of the parabolic equation in m {m}
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JEADV Clinical Practice, EarlyView.ABSTRACT Background Residual limb hyperhidrosis (RLH) is a frequent and debilitating condition among lower‐limb prosthetic users. Although aluminium chloride is recommended first‐line for focal hyperhidrosis, its efficacy in RLH has not previously been evaluated in prospective studies.
Jette Schack +3 more
wiley +1 more source
On Cauchy problem for system of n Euler-Poisson-Darboux equations in the plane
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012 The system of Euler-Poisson-Darboux equations is considered, the Cauchy problem is solved for the case of real n×n matrix-coefficient with one real eigenvalue or two complex conjugate eigenvalues with real part in the interval (−1/2, 1/2).
Ekaterina A Maksimova
doaj
Open Mathematics, 2019 The solutions to the Riemann problem for the isentropic relativistic Euler system for the extended Chaplygin gas are constructed for all kinds of situations by using the method of phase plane analysis.
Zhang Yunfeng, Sun Meina, Lin Xiuli
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On the solution of the space-time fractional cubic nonlinear Schrödinger equation
Results in Physics, 2018 The space–time fractional nonlinear Schrödinger equation is studied based on the modified Riemann–Liouville derivative. The fractional mapping expansion method is used to find analytical solution of this model.
E.A. Yousif +2 more
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Summability methods based on the Riemann Zeta function [PDF]
International Journal of Mathematics and Mathematical Sciences, 1988 This paper is a study of summability methods that are based on the Riemann Zeta function. A limitation theorem is proved which gives a necessary condition for a sequence x to be zeta summable. A zeta summability matrix Zt associated with a real sequence t is introduced; a necessary and sufficient condition on the sequence t such that Zt maps l1 to l1 ...
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Integral de Riemann no Rn [PDF]
, 2004 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Matemática.Neste trabalho, estudamos a Integral de Riemann, seus aspectos históricos e sua construção. Mostramos os teoremas de Darboux e Riemann
Leal Junior, Luiz Carlos
core
Mathematical Methods in the Applied Sciences, EarlyView.A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay +2 more
wiley +1 more source