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Turbulent flow properties of large-scale vortex systems
gridfree turbulence vortex methods
2016/5/18
Large-scale computations of dynamically interacting vortex tubes forming filaments are performed with a view toward investigating their relationship to turbulent fluid flow. It is shown that the stati...
Complexity, Emergent Systems and Complex Biological Systems: Complex Systems Theory and Biodynamics. [Edited book by I.C. Baianu, with listed contributors (2011)]
Complexity Emergent Systems Complex Biological Systems Complex Systems Theory Biodynamics
2015/7/22
An overview is presented of System dynamics, the study of the behaviour of complex systems, Dynamical system in mathematics Dynamic programming in computer science and control theory, Complex systems ...
Nonlinear Dynamics and Alternative Stable States in Shallow Coastal Systems
Shallow Coastal Systems Nonlinear Dynamics
2015/7/16
The dynamics of shallow-water coastal environments are controlled by external drivers—sea level rise, storms, and sediment and nutrient supplies—and by internal feedbacks. Interactions of biotic proce...
Continuum mathematical modeling of slip weakening in geological systems
Continuum mathematical modeling slip weakening geological systems
2015/7/1
Deformation of the Earth’s crust from tectonic forces involves both diffuse elastic and plastic strains, rigid body translations and rotations, and localized deformations concentrated along narrow fau...
Optimal Cooperative Control of Dynamically Decoupled Systems
Dynamically Decoupled Systems Cooperative Control
2015/6/19
We consider optimal cooperative control problems where multiple dynamically decoupled players cooperate to optimize a coupled objective under limited communication between each player. We present the ...
Temporal disorder in up-down symmetric systems
Temporal disorder in up-down symmetric systems
2012/2/27
The effect of temporal disorder on systems with up-down Z2 symmetry is studied. In particular, we analyze two well-known families of phase transitions: the Ising and the generalized voter universality...
We examine energy transport in an ensemble of closed quantum systems driven by stochastic perturbations. One can show that the probability and energy fluxes can be described in terms of quantum advect...
Dynamics of Energy Fluctuations in Equilibrating and Driven-Dissipative Systems
Dynamics Energy Fluctuations Equilibrating Driven-Dissipative Systems
2012/2/27
When two isolated system are brought in contact, they relax to equilibrium via energy exchange. In another setting, when one of the systems is driven and the other is large, the first system reaches a...
We study the properties of mixed states obtained from eigenstates of many-body lattice Hamiltonians after tracing out part of the lattice. Two scenarios emerge for generic systems: (i) the diagonal en...
The relationship between near-surface turbulence and gas transfer velocity in freshwater systems and its implications for floating chamber measurements of gas exchange
The relationship near-surface turbulence gas transfer velocity freshwater systems floating chamber measurements of gas exchange
2014/4/17
We performed a series of gas exchange measurements in 12 diverse aquatic systems to develop the direct relationship between near-surface turbulence and gas transfer velocity. The relationship was log-...
Study on fluid-structure interaction in liquid oxygen feeding pipe systems using finite volume method
Fluid-structure interaction Liquid oxygen Finite volume method
2012/2/29
The fluid-structure interaction may occur in space launch vehicles, which would lead to bad performance of vehicles, damage equipments on vehicles, or even affect astronauts' health. In this paper, an...
The dynamical equations of clarinet-like systems are known to be reducible to a non-linear iterated map within reasonable approximations. This leads to time oscillations that are represented by square...
Transient behavior in systems with time-delayed feedback
time-delayed feedback steady states
2010/4/6
We investigate the transient times for the onset of control of steady states by time-delayed feedback. The optimization of control by minimising the transient time before control becomes effective is ...
CONSTRUCTAL THEORY AND FLOW ARCHITECTURES IN LIVING SYSTEMS
flow architectures living systems constructal theory
2009/10/13
We apply Constructal theory to the study of the flow structure of the human respiratory tree. We show that the flow architecture that would perform oxygenation of the blood and removal of carbon dioxi...
《Dynamics of Controlled Mechanical Systems with Dalayed Feedback》评介