Results 51 to 60 of about 120,633 (286)
Extrapolated Implicit–Explicit Runge–Kutta Methods
We investigate a new class of implicit–explicit singly diagonally implicit Runge–Kutta methods for ordinary differential equations with both non-stiff and stiff components. The approach is based on extrapolation of the stage values at the current step by
Angelamaria Cardone +3 more
doaj +1 more source
Very High Order $\PNM$ Schemes on Unstructured Meshes for the Resistive Relativistic MHD Equations
In this paper we propose the first better than second order accurate method in space and time for the numerical solution of the resistive relativistic magnetohydrodynamics (RRMHD) equations on unstructured meshes in multiple space dimensions.
Dumbser, Michael, Zanotti, Olindo
core +1 more source
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley +1 more source
A HYBRID METHOD FOR STIFF REACTION-DIFFUSION EQUATIONS. [PDF]
The second-order implicit integration factor method (IIF2) is effective at solving stiff reaction-diffusion equations owing to its nice stability condition.
Chen, Weitao, Nie, Qing, Qiu, Yuchi
core
Exact anisotropic brane cosmologies [PDF]
We present exact solutions of the gravitational field equations in the generalized Randall-Sundrum model for an anisotropic brane with Bianchi type I and V geometry, with perfect fluid and scalar fields as matter sources.
A. Campos +28 more
core +3 more sources
Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley +1 more source
Superposition Method with the Principle of Multiple Shooting for Solving Stiff Linear Initial Value Problems [PDF]
The main objective of this paper is the development of a new technique for solving stiff Linear Initial Value Problems (IVPs) in Ordinary Differential Equations (ODEs), The new Technique consists of combining the linear superposition principle with the ...
Basheer Khalaf, Suhaib Al-Tamr
doaj +1 more source
Vortex in a relativistic perfect isentropic fluid and Nambu Goto dynamics
By a weak deformation of the cylindrical symmetry of the potential vortex in a relativistic perfect isentropic fluid, we study the possible dynamics of the central line of this vortex.
B. Boisseau +9 more
core +1 more source
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai +4 more
wiley +1 more source
Extrapolation at stiff differential equations
Asymptotic expansions for the global error for extrapolation methods using the implicit Euler method, the linearly implicit Euler method and the linearly implicit midpoint rule for stiff initial value problems in ordinary differential equations are derived. Practical implications of these results for error estimation and step-size control are indicated.
Hairer, E., Lubich, C.
openaire +2 more sources

