Now showing items 1-10 of 34
(Virginia Tech, 2000)
This is the alumni magazine of the Department of Chemistry at Virginia Tech. Inside: Gary Cook reveals the places a chemist can go. Plus: Harry Dorn helps create a new molecule family: a wheel within a ball.
chaotic advection, diffusion, and reactions in open flows
(AIP Publishing, 2000-03)
We review and generalize recent results on advection of particles in open time-periodic hydrodynamical flows. First, the problem of passive advection is considered, and its fractal and chaotic nature is pointed out. Next, ...
Analysis and approximation of the velocity tracking problem for Navier-Stokes flows with distributed control
(Siam Publications, 2000-05)
We consider the mathematical formulation, analysis, and the numerical solution of a time-dependent optimal control problem associated with the tracking of the velocity of a Navier-Stokes ow in a bounded two-dimensional ...
Constraints on two-Higgs-doublet models at large tan beta from W and Z decays
(American Physical Soc, 2000-09-01)
The Extreme Scattering Event toward PKS 1741-038: VLBI Images
(IOP PUBLISHING LTD, 2000-05)
We report multiepoch VLBI observations of the source PKS 1741-038 (OT 068) as it underwent an extreme scattering event (ESE). Observations at four epochs were obtained, and images were produced at three of these. One of ...
Nitrogen cycling in a forest stream determined by a n-15 tracer addition
(Ecological Society of America, 2000-08)
Nitrogen uptake and cycling was examined using a six-week tracer addition of N-15-labeled ammonium in early spring in Walker Branch, a first-order deciduous forest stream in eastern Tennessee. Prior to the N-15 addition, ...
Geometry-dependent electronic properties of highly fluorescent conjugated molecules
(American Physical Society, 2000-09-11)
We present a combined experimental/theoretical study of the electronic properties of conjugated para-phenylene type molecules under high pressure up to 80 kbar. Pressure is used as a tool to vary the molecular geometry and ...
Numerical simulation of breakup of a viscous drop in simple shear flow through a volume-of-fluid method
(American Institute of Physics, 2000-02)
A spherical drop, placed in a second liquid of the same density, is subjected to shearing between parallel plates. The subsequent flow is investigated numerically with a volume-of-fluid (VOF) method. The scheme incorporates ...
Dimensional crossover in dipolar magnetic layers
(Iop Publishing Ltd, 2000-01-14)
Viability of competing field theories for the driven lattice gas
(American Physical Soc, 2000-05-01)