نتایج جستجو برای: mixed type splitting

تعداد نتایج: 1565541  

2014
Antonella Zanna

We discuss the construction of volume-preserving splitting methods based on a tensor product of single-variable basis functions. The vector field is decomposed as the sum of elementary divergence-free vector fields (EDFVFs), each of them corresponding to a basis function. The theory is a generalization of the monomial basis approach introduced in Xue & Zanna (2013, BIT Numer. Math., 53, 265–281...

and M. Ashrafizadeh, E. Shirani, M. Talebi,

In this study, turbulent flow around a tube bundle in non-orthogonal grid is simulated using the Large Eddy Simulation (LES) technique and parallelization of fully coupled Navier – Stokes (NS) equations. To model the small eddies, the Smagorinsky and a mixed model was used. This model represents the effect of dissipation and the grid-scale and subgrid-scale interactions. The fully coupled NS eq...

Journal: :Clinical and experimental rheumatology 2006
A P Rozin M Lewin Y Braun-Moscovici O B Itzhak R Bergman A Balbir-Gurman

We report a rare case of essential mixed cryoglobulinemia type II with membrano-proliferative glomerulonephritis (MPGN) type I in which HCV was not found. Long-term history of palindromic rheumatism, skin leukocytoclastic vasculitis attacks and micro-normocytic anemia preceded the appearance of cryoglobulinemia. Cryoprecipitate consisted of monoclonal IgMk-RF and polyclonal IgG (essential mixed...

2017
Alexander Ostermann Katharina Schratz KATHARINA SCHRATZ

— We introduce low regularity exponential-type integrators for nonlinear Schrödinger equations for which first-order convergence only requires the boundedness of one additional derivative of the solution. More precisely, we will prove first-order convergence in H for solutions in H (r > d/2) of the derived schemes. This allows us lower regularity assumptions on the data than for instance requir...

Journal: :computational methods for differential equations 0
kamal shah university of malakand rahmat ali khan derartment of mathematcs university of malakand kpk pakistan

in this article, we investigate sufficient conditions for existence of maximal and minimalsolutions to a coupled system of highly nonlinear differential equations of fractional order with mixedtype boundary conditions. to achieve this goal, we apply monotone iterative technique togetherwith the method of upper and lower solutions. also an error estimation is given to check theaccuracy of the me...

Behnam Behnoush, Mehdi Lalezari, Mohammad Arefi, Nasim Zamani,

Background: The aim of this study was to evaluate the efficacy of arterial blood gases (ABGs) in determining the type of intoxication. Methods: Medical charts of all patients who had referred to the toxicology ward of Baharloo Hospital between January 2009 and December 2009 were evaluated. After excluding the patients with multi-drug toxicity, data, including age, sex, type of intoxication ...

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