Results 241 to 250 of about 3,700,174 (282)

The dynamics of granular flow in an hourglass

Granular Matter, 2001
We present experimental investigations of flow in an hourglass with a slowly narrowing elongated stem. The primary concern is the interaction between grains and air. For large grains the flow is steady. For smaller grains we find a relaxation oscillation (ticking) due to the counterflow of air, as previously reported by Wu et al. [Phys. Rev. Lett.
Veje, Christian, Dimon, Peter
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Dynamic optimization flow control

42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004
In this paper, we introduce a class of flow control problems in a network which involves dynamic optimization. As opposed to the static flow control problem where the source rates are determined as a result of a static optimization problem, in our formulation the rates are adjusted according to the solution of an infinite-horizon discounted optimal ...
Orhan C. Imer, Tamer Basar
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Information flow dynamics in the brain

Physics of Life Reviews, 2012
Timing and dynamics of information in the brain is a hot field in modern neuroscience. The analysis of the temporal evolution of brain information is crucially important for the understanding of higher cognitive mechanisms in normal and pathological states. From the perspective of information dynamics, in this review we discuss working memory capacity,
Rabinovich, M., Afraimovich, V., Bick, C., Varona, P.   +3 more
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Flow dynamics of the crocodilian heart

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1989
We report for the first time the flow events corresponding to the pressure patterns in the left and right aorta (LAo and RAo) during the cardiac cycle in the caiman (Caiman crocodylus ssp). These experiments show a complex LAo flow pattern; an initial small anterograde flow in the early systole is reversed to a backflow at midsystole.
M, Axelsson, S, Holm, S, Nilsson
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Flow Dynamics in the Human Aorta

Journal of Biomechanical Engineering, 1993
The aorta is the major blood vessel transporting blood pumped by the left ventricle to the systemic circulation. The tricuspid aortic valve at the root of the aorta provides a centralized flow with nearly uniform velocity profile into the ascending aorta.
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Interfacial Dynamics for Stokes Flow

Journal of Computational Physics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Dynamic Routing and Flow Control

IEEE Transactions on Communications, 1980
This is an expanded version of an earlier report, adding, new results. The first part introduces a simple analytic model showing that dynamic routing may increase network throughput or lower delay when trunks are moderately loaded, but will reduce throughput or increase delay at heavy trunk loads.
Harry R. Rudin Jr., Heinrich R. Müller
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Droplet dynamics in rotating flows

Advances in Colloid and Interface Science, 2016
This paper deals with investigations of droplet dynamics in rotating flows. In many previous studies droplet dynamics was analyzed in simple unidirectional flows. To fill this gap, the focus of this study is an overview on investigations of droplet dynamics in a complex rotating flow.
B, Maneshian, Kh, Javadi, M Taeibi, Rahni, R, Miller   +3 more
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Droplet Dynamics in Creeping Flows

Journal of Applied Mechanics, 1981
The accelerated motion of a liquid droplet is investigated analytically. The equation of motion is developed through an analysis of the internal and external fluid motions. Response to step changes in applied force and external fluid velocity are determined. Oscillating forces and velocities are treated and frequency response characteristics found.
Stewart, M. B., Morrison, F. A. jun.
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Gas Dynamics and Reacting Flows

1996
Let us consider a fluid in a local thermodynamical equilibrium. Then we know from thermodynamics that the thermodynamical state of the fluid is completely determined by any two thermodynamic variables. Most often, we shall note by the same letter the corresponding mathematical functions, though they differ.
Edwige Godlewski, Pierre-Arnaud Raviart
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