Results 121 to 130 of about 11,022,643 (271)

Computational model of haemodynamics during atrial fibrillation

The Journal of Physiology, EarlyView.
Abstract figure legend We developed a simplified computational model that replicates patient‐specific haemodynamics during both normal sinus rhythm and atrial fibrillation (AF). Our computational model comprises: (1) an electrical subsystem that generates unco‐ordinated atrial and irregular ventricular activation times characteristic of AF and (2) a ...
Felix Plappert, Pim J.A. Oomen, Clara E. Jones, Emmanouil Charitakis, Lars O. Karlsson, Pyotr G. Platonov, Mikael Wallman, Frida Sandberg   +7 more
wiley   +1 more source

Efficiency of a Boris-like integration scheme with spatial stepping

Physical Review Special Topics. Accelerators and Beams, 2002
A modified Boris-like integration, in which the spatial coordinate is the independent variable, is derived. This spatial-Boris integration method is useful for beam simulations, in which the independent variable is often the distance along the beam.
P. H. Stoltz, J. R. Cary, G. Penn, J. Wurtele   +3 more
doaj   +1 more source

Model Adjustments and Solver Construction for Galvanic Cells Based on NPP‐Systems

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Electroplated coatings on metallic substrates have a wide range of practical applications ranging from corrosion or wear protection on parts, good conductivity on electrical contacts to coating systems for bipolar plates in fuel cells. The large field of applications in electrochemical engineering motivates several questions for scientific ...
Stephan Daniel Schwöbel, Thomas Mehner, Thomas Lampke   +2 more
wiley   +1 more source

ANALISIS SOLUSI MODEL PENYEBARAN PENYAKIT INFLUENZA MELALUI TRANSPORTASI ANTAR DUA KOTA DENGAN METODE RUNGE-KUTTA

, 2013
RINGKASAN Analisis Solusi Model Penyebaran Penyakit Influenza Melalui Transportasi Antar Dua Kota dengan Metode Runge-Kutta; Nila Kartikasari, 091810101020; 2013: 45 halaman; Jurusan Matematika Fakultas Matematika dan Ilmu Pengetahuan Alam ...
Nila Kartikasari
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Efficiency Improvements of RANS-Based Analysis and Optimization using Implicit and Adjoint Methods on Unstructured Grids [PDF]

, 2006
The efficiency of an unstructured grid finite volume RANS solver is signicantly improved using two implicit methods based on diering philosophies. The LU-SGS multigrid method aims to improve performance, while maintaining the low memory requirements and
Dwight, Richard
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A Two‐Way Coupled Simulation Framework for the Prediction of Fire‐Induced Damage and Smoke Propagation in a Building

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The contribution is concerned with a fully coupled simulation methodology for fire‐induced damage in concrete structures. Fire events in buildings not only generate high temperatures and the spreading of smoke gases but also induce significant structural damages of the concrete structure.
A. Palani, C. Kandekar, W. E. Weber, M. Breuer   +3 more
wiley   +1 more source

The Runge-Kutta method with fixed and variable parameters for solution of systems of first-order ordinary differential equations

, 1975
summary:Durch geeignete Wahl freier Parameter wird bei expliziten Runge-Kutta-Verfahren zur Lösung von Differentialgleichungssystemen. 1.
Scholz, Siegfried
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On the Design of Model Predictive Setpoint Controllers for Nonholonomic Multibody Systems

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Systems subject to constraints that are not integrable to position‐level constraints pose significant challenges for setpoint control. In particular, conventional linearization techniques may fail to yield controllable approximations, since certain directions of motion are only accessible through higher‐order interactions of the control inputs.
Mario Rosenfelder, Henrik Ebel, Peter Eberhard   +2 more
wiley   +1 more source

An implicit-explicit Runge-Kutta discontinuous Galerkin method for advection-diffusion equations

四川大学学报. 自然科学版
In this paper， an implicit-explicit Runge-Kutta discontinuous Galerkin method is proposed for the advection-diffusion equation.In the method， a two-stage Runge-Kutta scheme is employed for the temporal discretization， a discontinuous Galerkin method is ...
QING Shuwen, WANG Lu, FENG Minfu
doaj  

Multiplicative Runge-Kutta Methods

, 2011
Master of Science in Applied Mathematics and Computer Science. Thesis (M.S.)--Eastern Mediterranean University, Faculty of Arts and Sciences, Dept. of Mathematics, 2011. Supervisor: Assist. Prof.
Aktöre, Hatice
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