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长江大学物理科学与技术学院力学课件第八章 Oscillations。
Oscillations in the Spontaneous Fluorescence from the Photosynthetic Reaction Centers
inorganic,organic,physical and analytical chemistry basic biological sciences solar energy photosynthetic reaction centers fluorescence chlorophyll electron transfer oscillations photosynthetic bacteria stimulated emission
2016/5/23
The spontaneous fluorescence from the special pair primary electron donor in bacterial photosynthetic reaction centers has been measured at low temperature using fluorescence up-conversion following e...
Self-oscillations in rocks,results of laboratory experiments
self-oscillations mechanoelectricself-oscillator transformations rocks
2015/9/14
The method of generation of self-oscillations in rocks is developed here. Self-oscillations arise as a result of direct and inverse mechanoelectric transformations without an external generator. Labor...
Persistence of planetary wave type oscillations in the mid-latitude ionosphere
ionosphere atmosphere interaction mid-latitude ionosphere ionospheric disturbances atmospheric waves
2015/9/8
Planetary wave type oscillations have been observed in the lower and middle atmosphere but also in the ionosphere,
including the ionospheric F2 layer. Here we deal with the oscillations in foF2 analy...
We are still far from a comprehensive theory of bifurcation in dynamical systems with
multiple time scales. However, systematic application of geometric methods and study
of examples have produced d...
Bifurcations of Relaxation Oscillations near Folded Saddles
Folded Saddles Relaxation Oscillations
2015/8/25
Relaxation oscillations are periodic orbits of multiple time scale dynamical systems
that contain both slow and fast segments. The slow-fast decomposition of these orbits is
de ned in the singular l...
A Geometric Model for Mixed-Mode Oscillations in a Chemical System
mixed-mode oscillations bifurcations kneading theory
2015/8/25
This paper presents a detailed analysis of mixed-mode oscillations in the “autocatalator,” a threedimensional,
two time scale vector field that is a chemical reactor model satisfying the law of mass
...
Rapid Variability in the Japan/East Sea: Basin Oscillations, Internal Tides, and Near-Inertial Oscillations
Basin Oscillations Internal Tides
2015/7/24
Many processes contribute to the variations of currents, sea surface height (SSH), and thermocline depth in marginal seas. Energetic examples range broadly over time scales from slow mesoscale and int...
Characterization of the sperm factor responsible for initiating [Ca2+]i oscillations during fertilization in mammalian eggs
Biological sciences Sperm factor Oscillations Fertilization Mammalian eggs
2015/1/28
During fertilization the sperm activates the mammalian egg by eliciting [Ca2+]i oscillations. However, how the sperm triggers [Ca2+]i oscillations in mammalian eggs remains unknown. To test the possib...
The model of self-generated seismo-electromagnetic oscillations of the LAI system
self-generated seismo-electromagnetic oscillations LAI system
2014/12/31
Very low frequency (VLF) electromagnetic radiation (in diapason 1 kHz–1 MHz) in the atmosphere, generated during an earthquake preparation period, may be connected with the linear size characterising ...
The role of inositol 1,4,5 -trisphosphate receptor type-1 in regulation of intracellular calcium oscillations in mouse eggs
Calcium mammals fertilization eggs activation embryonic development cell cycle inositol receptor
2014/12/11
Calcium ([Ca2+]i) oscillations, a hallmark of mammalian fertilization, are essential to induce egg activation and embryonic development. As the zygotes transition through the cell cycle, these [Ca 2+]...
Forced oscillations of a body attached to a viscoelastic rod of fractional derivative type
fractional derivative distributed-order fractional derivative fractional viscoelastic material forced oscillations of a rod
2012/7/11
We study forced oscillations of a rod with a body attached to its free end so that the motion of a system is described by two sets of equations, one of integer and the other of the fractional order. T...
Parametric Optomechanical Oscillations in Two-Dimensional Slot-Type High-Q Photonic Crystal Cavities
Parametric Optomechanical Oscillations Two-Dimensional Slot-Type High-Q Photonic Crystal Cavities Optics
2012/5/29
We experimentally demonstrate an optomechanical cavity based on an air-slot photonic crystal cavity with optical quality factor Qo=4.2\times10^4 and a small modal volume of 0.05 cubic wavelengths. The...
Switching between oscillations and homeostasis in competing negative and positive feedback motifs
negative feedback positive feedback oscillation noise circadian rhythm
2012/5/2
We analyze a class of network motifs in which a short, two-node positive feed- back motif is inserted in a three-node negative feedback loop. We demonstrate that such networks can undergo a bifurcatio...
Sensitivity computation of periodic and chaotic limit cycle oscillations
Sensitivity analysis linear response adjoint equation unsteady adjoint chaos statistical average
2012/4/19
Sensitivity analysis can be a powerful tool for multi-disciplinary design optimization of nonlinear flow structure interaction. For computing sensitivity of time averaged quantities in chaotic oscilla...