scholarly journals Partitioned Coupling vs. Monolithic Block-Preconditioning Approaches for Solving Stokes-Darcy Systems

2021 ◽  
Author(s):  
J. Schmalfuß ◽  
C. Riethmüller ◽  
M. Altenbernd ◽  
K. Weishaupt ◽  
D. Göddeke
Keyword(s):  
Block Preconditioning

Block Preconditioning Techniques for Geophysical Electromagnetics

2020 ◽  
Vol 42 (3) ◽  
pp. B696-B721
Author(s):  
H. Bin Zubair Syed ◽  
C. Farquharson ◽  
S. MacLachlan
Keyword(s):  
Preconditioning Techniques ◽  
Block Preconditioning

Block-Preconditioning for Hybrid Discretizations in Combination With Lagrange-Multiplier Coupling

2010 ◽  
Vol 46 (8) ◽  
pp. 3397-3400
Author(s):  
Stephan Koch ◽  
Herbert De Gersem ◽  
Thomas Weiland
Keyword(s):  
Lagrange Multiplier ◽  
Block Preconditioning

scholarly journals Block preconditioning strategies for nonlinear viscous wave equations

2013 ◽  
Vol 37 (8) ◽  
pp. 5801-5813 ◽  
Author(s):  
Qifeng Zhang ◽  
Chengjian Zhang
Keyword(s):  
Wave Equations ◽  
Block Preconditioning

Parallel block preconditioning based on SSOR and MILU

1994 ◽  
Vol 1 (6) ◽  
pp. 533-553 ◽  
Author(s):  
Takumi Washio ◽  
Ken Hayami
Keyword(s):  
Block Preconditioning

scholarly journals Ischemic preconditioning: antiarrhythmic effects and electrophysiological mechanisms in isolated ventricle

1998 ◽  
Vol 274 (1) ◽  
pp. H66-H75 ◽  
Author(s):  
Jiequan Zhu ◽  
Gregory R. Ferrier
Keyword(s):  
Ischemic Preconditioning ◽  
Conduction Block ◽  
Conduction Time ◽  
Ischemia And Reperfusion ◽  
Early Reperfusion ◽  
Ventricular Tissue ◽  
Block Preconditioning ◽  
Isolated Ventricle ◽  
Premature Beats ◽  
Antiarrhythmic Effects

The objective of this study was to identify cellular electrophysiological mechanisms by which ischemic preconditioning decreases arrhythmias in an isolated ventricular tissue model of ischemia and reperfusion. Electrical activity was recorded with microelectrodes from endocardium and epicardium of paced guinea pig right ventricular free walls. Control preparations were exposed for 15 min to Tyrode solution modified to simulate selected ischemic conditions and then were reperfused for 30 min with normal solution. Preconditioned tissues were exposed to a 2- or 5-min period of simulated ischemia before this same protocol. Neither preconditioning protocol affected incidence of ventricular tachycardia (VT) in ischemia; however, the 5-min protocol significantly decreased premature beats (PVB) and transmural conduction block. Preconditioning for 5 min, but not 2 min, significantly decreased reperfusion-induced VT and PVB. Ischemic preconditioning did not change effects of ischemia or reperfusion on action potential duration, effective refractory period, or endocardial conduction time. However, preconditioning markedly attenuated depression of transmural conduction by ischemia and early reperfusion and thereby prevented conduction delays necessary for transmural reentry.

Sign in / Sign up

Export Citation Format

Share Document