Spiral waves
Bi Stable Spiral Waves: Stepped Spiral Waves
... complex-structure spiral wave called the stepped spiral wave, which formed in bi-stable ...the spiral tip to produce two types of wave: High (high concentration) and low (low concentration) ...
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Electro mechanical dynamics of spiral waves in a discrete 2D model of human atrial tissue
... of spiral waves in 2D human atrial ...of spiral waves in normal and AFER ...re-entrant spiral waves, decelerates excitation rate of spiral waves, increases the ...
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Computation of the drift velocity of spiral waves using response functions
... of spiral waves suggested in 关 56 兴 produces an equivalent of response functions, which is not only quickly decaying, but also periodically changing sign at large radii, with an asymptotic period equal to ...
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Directly observing continuum emission from self gravitating spiral waves
... The spiral arms were again modelled using density wave theory, with two planetary com- panions launching the spiral ...launch spiral waves with low m modes that are capable of matching these ...
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When does cyclic dominance lead to stable spiral waves?
... we have identified a phase (SA) where spirals annihilate, leading to spatially uniform dominance of each species in turn. Importantly, these behaviours, which arise in a wide region of the parameter space around the Hopf ...
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A Computer Simulation Study of Anatomy Induced Drift of Spiral Waves in the Human Atrium
... of spiral waves of excitation with atrial anatomy remains ...on spiral wave spontaneous drift in the human ...of spiral waves. The drift of a spiral wave was quantified by ...
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Nonlinear Concave Spiral Waves in Active Media Transferring Energy
... concave waves were first detected By ...ordinary spiral waves always propagate from the core of the spiral outward, then in antispirals the waves move to the ...phase waves, ...
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Orbital movement of spiral waves
... of spiral wave dynam- ics: precession around a localized inhomogeneity along a stable circular ...of spiral waves is robust and prevalent, has non- trivial and surprising consequences for ...
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Dynamics of filaments of scroll waves
... of waves does not in fact require an obstacle, and the excitation wave may circulate “around itself”, ...“spiral waves” (see Figure ...the spiral waves made by such propagation were ...
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A new approach to modelling the dynamics of cardiac action potentials
... We shall check that our models support spiral waves and shall concentrate on the dispersion in to the curves and obtain restitution chapter previous simple model used for the slow respon[r] ...
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Why Energy and Mass Can Be Converted between Each Other? A New Perspective Based on a Matter Wave Model
... Thus, there is a dilemma now. On the one hand, the old concept of aether is unviable. On the other hand, with the development of quantum field theory, the vacuum can no longer be regarded as “emptiness”. What is the way ...
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The formation of molecular clouds in spiral galaxies
... lence, spiral shocks, feedback, which governs molecular cloud ...the spiral structure of galaxies, most clearly identified by the youngest star forming ...between spiral structure and molecular ...
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Original Article Expression patterns of fibroblast growth factor 8 in the spiral ganglion of rat cochlea
... Previous studies found that FGF8 binds to FGFR1-4 to exert its functions [8]. In the audi- tory system, FGFR1-3 are present in the epithe- lium of the cochlear duct, whereas FGFR4 is restricted to the mesenchyme ...
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The Classification of Spiral Surfaces Based on Particle Forming Motion and Parametrically Accurate Modeling
... the spiral surface in discussion includes five kinds of spiral surfaces, RRC_1, RRC_2, CCR_s, CCR_p, and CC as shown in ...into spiral surface with straight line segment or circle arc on ...the ...
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Tappered Spiral Helix Antenna
... Archimedean spiral can be explained from the band theory of ...arm spiral can be considered as a two-wire transmission line transformed into a radiating ...the spiral, while the second produces a ...
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Wideband and Multifrequency Square Spiral Microstrip Patch Antenna
... ABSTRACT: This paper describes the analysis and design of a class of square spiral microstrip antennas for broad frequency band and multi-frequency operations by adding suitable tuning elements in a single ...
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Exponential based spiral dynamic algorithm for modeling of a flexible manipulator system
... causes the term c 1 / exp ( c 2 ( | f (x i (k)) - min J | ) ) to have extremely large value. As a result, r eb is big or approaching maximum spiral radius, r u . On the other hand, positive constant value of c 1 ...
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Comparative Analysis of Different Types of Planer EBG Structures
... In this paper purily dielectric planer types of EBG structures is designed to suppress surface waves. The EBG structures are designed on the FR-4 substrate having dielectric constant 4.4, thickness 1.6 mm and loss ...
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eng and seismic waves
... Rayleigh waves cause a rolling motion —like ocean waves. Slowest of the seismic waves (travel at around 3 km/s)[r] ...
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Waves - student copy.ppt
... The wavelength of waves in a wave train, however, change with water depth.... Most of the waves present on the ocean’s surface are wind-generated waves.[r] ...
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