Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Simitev, Radostin"'
Publikováno v:
Fluids 2023, 8, 288
Contemporary three-dimensional physics-based simulations of the solar convection zone disagree with observations. They feature differential rotation substantially different from the true rotation inferred by solar helioseismology and exhibit a convey
Externí odkaz:
http://arxiv.org/abs/2311.12957
Autor:
Simitev, Radostin D., Dawoud, Antesar Al, Aziz, Muhamad H. N., Myles, Rachel, Smith, Godfrey L.
Publikováno v:
Mathematical Medicine & Biology, 2023
Current understanding of arrhythmia mechanisms and design of anti-arrhythmic drug therapies hinges on the assumption that myocytes from the same region of a single heart have similar, if not identical, action potential waveforms and drug responses. O
Externí odkaz:
http://arxiv.org/abs/2301.06878
Magnetic helicity is a fundamental constraint in both ideal and resistive magnetohydrodynamics. Measurements of magnetic helicity density on the Sun and other stars are used to interpret the internal behaviour of the dynamo generating the global magn
Externí odkaz:
http://arxiv.org/abs/2211.01356
Autor:
Quinn, James, Simitev, Radostin D.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, stac704, 2022
Magnetic flux tubes such as those in the solar corona are subject to a number of instabilities. Important among them is the kink instability which plays a central part in the nanoflare theory of coronal heating, and for this reason in numerical simul
Externí odkaz:
http://arxiv.org/abs/2110.10516
The topological underpinning of magnetic fields connected to a planar boundary is naturally described by field line winding. This observation leads to the definition of winding helicity, which is closely related to the more commonly calculated relati
Externí odkaz:
http://arxiv.org/abs/2108.08888
We report three-dimensional and time-dependent numerical simulations of the propagation of electrical action potentials in a model of rabbit ventricular tissue. The simulations are performed using a finite-element method for the solution of the monod
Externí odkaz:
http://arxiv.org/abs/2105.09112
Contemporary realistic mathematical models of single-cell cardiac electrical excitation are immensely detailed. Model complexity leads to parameter uncertainty, high computational cost and barriers to mechanistic understanding. There is a need for re
Externí odkaz:
http://arxiv.org/abs/2105.06853
The analytical theory of our earlier study (Mortensen et al. (2021), Mathematical Medicine and Biology, 38(1), pp. 106-131) is extended to address the outstanding cases of fibroblast barrier distribution and myocyte strait distribution. In particular
Externí odkaz:
http://arxiv.org/abs/2104.07165
Publikováno v:
A&A 650, A143 (2021)
Context: Magnetic null points are associated with high-energy coronal phenomena such as solar flares and are often sites of reconnection and particle acceleration. Dynamic twisting of a magnetic null point can generate a Kelvin-Helmholtz instability
Externí odkaz:
http://arxiv.org/abs/2102.00761
Publikováno v:
Fluids. 2020; 5(4):245
The relative importance of the helicity and cross-helicity electromotive dynamo effects for self-sustained magnetic field generation by chaotic thermal convection in rotating spherical shells is investigated as a function of shell thickness. Two dist
Externí odkaz:
http://arxiv.org/abs/2012.06929