Results 261 to 270 of about 163,781 (311)
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SHILNIKOV BIFURCATION: STATIONARY QUASI-REVERSAL BIFURCATION
International Journal of Bifurcation and Chaos, 2008A generic stationary instability that arises in quasi-reversible systems is studied. It is characterized by the confluence of three eigenvalues at the origin of complex plane with only one eigenfunction. We characterize the dynamics through the normal form that exhibits in particular, Shilnikov chaos, for which we give an analytical prediction.
Marcel G. Clerc +2 more
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Journal of Statistical Physics, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Meunier, C., Verga, A. D.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Meunier, C., Verga, A. D.
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International Journal of Bifurcation and Chaos, 1998
Oscillations described by autonomous three-dimensional differential equation systems display multiple periodicities and chaos at critical parameter values. Regardless of the subsequent scenario, the key instability is usually an initial bifurcation from a single period oscillation to its subharmonic of period two, or the reverse.
Phillipson, Paul E., Schuster, Peter
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Oscillations described by autonomous three-dimensional differential equation systems display multiple periodicities and chaos at critical parameter values. Regardless of the subsequent scenario, the key instability is usually an initial bifurcation from a single period oscillation to its subharmonic of period two, or the reverse.
Phillipson, Paul E., Schuster, Peter
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SIAM Journal on Applied Mathematics, 1986
The paper is concerned with the study of an integro-differential equation of the type: \[ u_ t=\int^{t}_{-\infty}K(t,s) u_{xx}(x,s) ds+Ru- u^ 3 \] with boundary conditions \(u=0\) for \(x=0\), where the kernel K is of Maxwell or Jeffrey type depending thus on one or more parameters, and R is a parameter that corresponds to the Rayleigh number.
Olmstead, W. E. +3 more
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The paper is concerned with the study of an integro-differential equation of the type: \[ u_ t=\int^{t}_{-\infty}K(t,s) u_{xx}(x,s) ds+Ru- u^ 3 \] with boundary conditions \(u=0\) for \(x=0\), where the kernel K is of Maxwell or Jeffrey type depending thus on one or more parameters, and R is a parameter that corresponds to the Rayleigh number.
Olmstead, W. E. +3 more
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Biosystems, 1989
The interrelations of physics and biology are discussed. It is shown that Darwin can be considered as one of the founders of the important field of contemporary physics called physics of dissipative structures or synergetics. The theories of gradual and punctual evolution are presented.
M V, Volkenstein, M A, Livshits
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The interrelations of physics and biology are discussed. It is shown that Darwin can be considered as one of the founders of the important field of contemporary physics called physics of dissipative structures or synergetics. The theories of gradual and punctual evolution are presented.
M V, Volkenstein, M A, Livshits
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Chaos: An Interdisciplinary Journal of Nonlinear Science, 2008
We propose and analyze a model of evolution of species based upon a general description of phenotypes in terms of a single quantifiable characteristic. In the model, species spontaneously arise as solitary waves whose members almost never mate with those in other species, according to the rules laid down.
Bees, M. A. +2 more
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We propose and analyze a model of evolution of species based upon a general description of phenotypes in terms of a single quantifiable characteristic. In the model, species spontaneously arise as solitary waves whose members almost never mate with those in other species, according to the rules laid down.
Bees, M. A. +2 more
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The Annals of Thoracic Surgery, 1997
Bifurcated anastomosis is a technique wherein geometrically tailored flaps of a vein graft are anastomosed to an arteriotomy in a vessel and its two branches. Although this technique may be useful for the surgical management of any diseased arterial bifurcation, it is particularly valuable in coronary endarterectomy or when complete revascularization ...
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Bifurcated anastomosis is a technique wherein geometrically tailored flaps of a vein graft are anastomosed to an arteriotomy in a vessel and its two branches. Although this technique may be useful for the surgical management of any diseased arterial bifurcation, it is particularly valuable in coronary endarterectomy or when complete revascularization ...
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2017
Within the design of technology, the notion of the user, and user-centered design, has become a guiding principal for creating successful products. However, the concept of “user” is a non-trivial notion. HCI has historically viewed “the user” as an abstract concept, that is to say, it has been a reductive definition.
Nicholas True +4 more
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Within the design of technology, the notion of the user, and user-centered design, has become a guiding principal for creating successful products. However, the concept of “user” is a non-trivial notion. HCI has historically viewed “the user” as an abstract concept, that is to say, it has been a reductive definition.
Nicholas True +4 more
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On the Definitions of Bifurcation
International Journal of Bifurcation and Chaos, 1997In this paper the equivalence of two definitions of elementary bifurcation is proved and a new definition for bifurcation is given.
Zhou, K., Wu, J. K.
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