Results 71 to 80 of about 3,552,226 (242)
The Journal of Physiology, EarlyView.Abstract figure legend Using a multiscale computational model of left ventricular electromechanics, we investigated how sarcomere dynamics influence the end‐systolic pressure‐volume (ESPV) relationship in ejecting beats compared to isovolumetric beats.
Francesco Regazzoni +2 more
wiley +1 more source
Efficient Traveltime Solutions of the TI Acoustic Eikonal Equation
, 2013 Numerical solutions of the eikonal (Hamilton-Jacobi) equation for transversely isotropic (TI) media are essential for integral imaging and traveltime tomography applications.
Waheed, Umair bin +3 more
core +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend Graphical representation of methods. We implemented three biventricular geometric models (Zenger et al., 2020) with rule‐based myocardial fibre orientations (Bayer et al., 2018). We evaluated variability in the fibre orientation via four sets of parameter distributions to determine the role of the primary and imbrication angles ...
Lindsay C. R. Tanner +8 more
wiley +1 more source
Pure radiation in space-time models that admit integration of the eikonal equation by the separation of variables method [PDF]
, 2017 We consider space-time models with pure radiation, which admit integration of the eikonal equation by the method of separation of variables. For all types of these models, the equations of the energy-momentum conservation law are integrated.
E. Osetrin, K. Osetrin
semanticscholar +1 more source
Sulla Regolarità delle soluzioni di viscosità dell'equazione iconale
Bruno Pini Mathematical Analysis Seminar, 2010 We study the regularity of a viscosity solution of equations of eikonal type in two dierent framework: we consider either the non-degenerate eikonal equation under low regularity assumptions on the data or a possibly degenerate eikonal equation with data
Paolo Albano
doaj
A Social Force Model for Pedestrians’ Movements Affected by Smoke Spreading
Modelling and Simulation in Engineering, 2020 A social force (SF) model is proposed to simulate the egress of pedestrians while smoke is spreading. The advection-diffusion with source term is used to describe the propagation of smoke. It is incorporated into the SF model. The navigation field in our
J. Makmul
doaj +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend This study examines the relationships between activation and repolarization times in epicardial reconstructed unipolar electrograms derived from ECG‐imaging in patients with normal and delayed ventricular activation. In patients with a narrow QRS‐complex, ECG‐imaging reveals significant variability in the activation ...
Karin C. Smits +9 more
wiley +1 more source
Numerical analysis of an inverse problem for the eikonal equation [PDF]
, 2011 We are concerned with the inverse problem for an eikonal equation of determining the speed function using observations of the arrival time on a fixed surface.
Charles Elliott (16073984) +8 more
core +1 more source
Modelling and Simulation in Engineering, 2020 A cellular automaton (CA) model is proposed to simulate the egress of pedestrians while gaseous hazardous material is spreading. The advection-diffusion with source term is used to describe the propagation of gaseous hazardous material.
J. Makmul
doaj +1 more source
Principal eigenvalue problem for infinity Laplacian in metric spaces
Advanced Nonlinear Studies, 2022 This article is concerned with the Dirichlet eigenvalue problem associated with the ∞\infty -Laplacian in metric spaces. We establish a direct partial differential equation approach to find the principal eigenvalue and eigenfunctions in a proper geodesic
Liu Qing, Mitsuishi Ayato
doaj +1 more source