Now showing items 51-60 of 1284
DSMC Simulation of the Cometary Coma
(The American Institute of Physics, 2003-05-05)
The study of the comet coma, or its tenuous atmosphere, is a major space application of rarefied gas dynamics, which requires modeling the gas flow in a wide range of Knudsen number. For weak to moderate comets, only the ...
Topologic mixing on a microfluidic chip
(The American Institute of Physics, 2004-03-22)
Mixing two liquids on a microfluidic chip is notoriously hard because the small dimensions and velocities on the chip effectively prevent turbulence. We present a topological mixing scheme that exploits the laminarity of ...
The harmonic measure of diffusion-limited aggregates including rare events
(IOP Publishing, 2009)
We obtain the harmonic measure of diffusion-limited aggregate (DLA) clusters using a biased random-walk sampling technique which allows us to measure probabilities of random walkers hitting sections of clusters with ...
Contact-line dynamics and damping for oscillating free surface flows
(The American Institute of Physics, 2004-03)
New experimental data on the frequency and damping of Faraday water waves in glass tanks are presented to demonstrate the contact-line effect on free surface flows. We find a complicated nonlinear relationship between wave ...
Book Review: The Discovery of Dynamics. By Julian B. Barbour. Oxford University Press, New York, New York, xxiv + 746 pp., $45.00 (softcover). ISBN 0-19-513202-5
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2002-08)
Evaluation of the fundamental properties of quantum dot infrared detectors
(The American Institute of Physics, 2002-04-01)
The physical properties of detectors based on intraband optical absorption in quantum dots is described and examined in the interest of providing a competitive alternative infrared (IR) detector technology. These quantum ...
On Travelling Waves for the Stochastic Fisher–Kolmogorov–Petrovsky–Piscunov Equation
(Kluwer Academic Publishers-Plenum Publishers; Springer Science+Business Media, Inc., 2005-08)
This paper is concerned with properties of the wave speed for the stochastically perturbed Fisher–Kolmogorov–Petrovsky–Piscunov (FKPP) equation. It was shown in the classical 1937 paper by Kolmogorov, Petrovsky and Piscunov ...
Gyroscopically Stabilized Oscillators and Heat Baths
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2004-05)
In this paper we analyze the stability of a gyroscopic oscillator interacting with a finite- and infinite-dimensional heat bath in both the classical and quantum cases. We consider a finite gyroscopic oscillator model of ...
Development of an information preservation method for subsonic, micro-scale gas flows
(The American Institute of Physics, 2001-08-30)
The development of an information preservation (IP) method is described in this paper. This effort is aimed at increasing our understanding of rarefied gas behavior of subsonic, micro-scale gas flows. The IP method preserves ...
Spin‐Flipping Polarized Deuterons At COSY
(The American Institute of Physics, 2004-02-05)
We recently stored a 1.85 GeV/c vertically polarized deuteron beam in the COSY Ring in Jülich; we then spin‐flipped it by ramping a new air‐core rf dipole’s frequency through an rf‐induced spin resonance to manipulate the ...