Now showing items 1-10 of 925
Mixing effectiveness depends on the source ndash sink structure: simulation results
(2008)
"Mixing refers to the homogenization of concentrations of passive scalars in fluids. On small scales it is dominated by diffusion and on large scales it is assisted by stirring. In the presence of scalar sources and sinks ...
Hydrodynamics and microphase ordering in block copolymers: Are hydrodynamics required for ordered phases with periodicity in more than one dimension?
(The American Institute of Physics, 2004-12-08)
We use Brownian dynamics (BD), molecular dynamics, and dissipative particle dynamics to study the phase behavior of diblock copolymer melts and to determine if hydrodynamics is required in the formation of phases with ...
Space-charge-limited flows in the quantum regime
(The American Institute of Physics, 2006-05)
This paper reviews the recent developments of space-charge-limited (SCL) flow or Child-Langmuir (CL) law in the quantum regime. According to the classical CL law for planar diodes, the current density scales as 3/23∕2’s ...
Ultrasound detection using polymer microring optical resonator
(The American Institute of Physics, 2004-11-29)
Application of polymer waveguide microring resonators for high-frequency ultrasound detection is presented. The device consists of a microring optical resonator coupled to a straight optical waveguide which serves as input ...
Biochemical sensors based on polymer microrings with sharp asymmetrical resonance
(The American Institute of Physics, 2003-08-25)
Photonic microresonators have great potential in the application of highly sensitive sensors due to high Q-factor resonances and steep slopes between zero and unity transmission. A microring resonator with increased resonance ...
Nanoscale thermal transport
(The American Institute of Physics, 2003-01-15)
Rapid progress in the synthesis and processing of materials with structure on nanometer length scales has created a demand for greater scientific understanding of thermal transport in nanoscale devices, individual ...
A model of flow and surfactant transport in an oscillatory alveolus partially filled with liquid
(The American Institute of Physics, 2005-03)
The flow and transport in an alveolus are of fundamental importance to partial liquid ventilation, surfactant transport, pulmonary drug administration, cell-cell signaling pathways, and gene therapy. We model the system ...
Magnetically modulated optical nanoprobes
(The American Institute of Physics, 2003-02-17)
We have developed magnetically modulated optical nanoprobes (MagMOONs) to magnetically modulate the signal from fluorescent probes and thus separate it from autofluorescence, electronic offsets, and other background signals. ...
Cosmic string in the van Stockum cylinder
(IOP Publishing Ltd, 2003-05-07)
The low density van Stockum dust solution is extended by including an angular deficit factor. The resulting model describes a rotating Gott–Hiscock string surrounded by an annular dust atmosphere. The interior spacetime ...
Controlling the motion of interacting particles: Homogeneous systems and binary mixtures
(The American Institute of Physics, 2005-06)
We elaborate on recent results on the transport of interacting particles for both single-species and binary mixtures subject to an external driving on a ratchetlike asymmetric substrate. Moreover, we also briefly review ...