Results 31 to 40 of about 178,783 (273)
Frontiers in Physiology, 2021 Myocardial fibrosis is an integral component of most forms of heart failure. Clinical and computational studies have reported that spatial fibrosis pattern and fibrosis amount play a significant role in ventricular arrhythmogenicity.
Aulia Khamas Heikhmakhtiar +3 more
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Confinement in Three Dimensions and the Electroweak Phase Transition [PDF]
, 1994 The infrared behaviour of the standard model at finite temperature is determined by the confining phase of the SU(2)-Higgs model in three dimensions. Due to the Landau singularity of the three-dimensional gauge theory the perturbative treatment of the ...
Buchmueller, W. +2 more
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Thermodynamic phase transitions and shock singularities [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011 We show that, under rather general assumptions on the form of the entropy function, the energy balance equation for a system in thermodynamic equilibrium is equivalent to a set of nonlinear equations of hydrodynamic type. This set of equations is integrable via the method of characteristics and it provides the equation of state for the gas.
de Nittis, Giuseppe, Moro, Antonio
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Generation of unconventional OAM waves by a circular array
The Journal of Engineering, 2019 In recent years, orbital angular momentum (OAM) waves have been applied to improve the performance of radar target detection and imaging. However, the phase singularity of conventional OAM beams and the doughnut-shaped intensity distribution will degrade
Kang Liu +4 more
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Frontiers in Physiology, 2022 Background and Objective: Renewal theory is a statistical approach to model the formation and destruction of phase singularities (PS), which occur at the pivots of spiral waves.
Evan V. Jenkins +18 more
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On the impossibility of finite-time splash singularities for vortex sheets [PDF]
, 2016 In fluid dynamics, an interface splash singularity occurs when a locally smooth interface self-intersects in finite time. By means of elementary arguments, we prove that such a singularity cannot occur in finite time for vortex sheet evolution, i.e.
Coutand, Daniel, Shkoller, Steve
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Singular-value demodulation of phase-shifted holograms [PDF]
Optics Letters, 2015 4 pages, 3 ...
Fernando Lopes, Michael Atlan
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Observation of an exceptional point in a non-Hermitian metasurface
Nanophotonics, 2020 Exceptional points (EPs), also known as non-Hermitian degeneracies, have been observed in parity-time symmetric metasurfaces as parity-time symmetry breaking points.
Park Sang Hyun +8 more
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Singularities of the Mixed State Phase [PDF]
Physical Review Letters, 2002 A recent proposal of Sjoqvist et.al. to extend Pancharatnam's criterion for phase difference between two different pure states to the case of mixed states in quantum mechanics is analyzed and the existence of phase singularities in the parameter space of an interference experiment with particles in mixed states pointed out.
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Observation of a Chiral State in a Microwave Cavity
, 2003 A microwave experiment has been realized to measure the phase difference of the oscillating electric field at two points inside the cavity. The technique has been applied to a dissipative resonator which exhibits a singularity -- called exceptional point
A. Heine +19 more
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