12,988 research outputs found
Possible approach to improve sensitivity of a Michelson interferometer
We propose a possible approach to achieve an 1/N sensitivity of Michelson
interferometer by using a properly designed random phase modulation. Different
from other approaches, the sensitivity improvement does not depend on
increasing optical powers or utilizing the quantum properties of light.
Moreover the requirements for optical losses and the quantum efficiencies of
photodetection systems might be lower than the quantum approaches and the
sensitivity improvement is frequency independent in all detection band.Comment: 8 pages, 3 figures, new versio
An introduction to fractal-based approaches in unconventional reservoirs — Part II
In recent years, unconventional reservoirs have drawn tremendous attention worldwide. This special issue collects a series of recent works on various fractal-based approaches in unconventional reservoirs. The topics covered in this introduction include fractal characterization of pore (throat) structure and its influences on the physical properties of unconventional rocks, fractal characteristics of crack propagation in coal and fluid flow in rock fracture network under shearing, porous flow phenomena and gas adsorption mechanism, fractal geophysical method in reservoirs
Seasonal variations of oxygen and hydrogen isotopes from water samples of Nam Co lake and inflowing river water
Abstract HKT-ISTP 2013
B
Modeling film flows down a fibre influenced by nozzle geometry
We study the effects of nozzle geometry on the dynamics of thin fluid films
flowing down a vertical cylindrical fibre. Recent experiments show that varying
the nozzle diameter can lead to different flow regimes and droplet
characteristics in the film. Using a weighted residual modeling approach, we
develop a system of coupled equations that account for inertia, surface tension
effects, gravity, and a film stabilization mechanism to describe both
near-nozzle fluid structures and downstream bead dynamics. We report good
agreement between the predicted droplet properties and the experimental data.Comment: 10 pages, 6 figure
Metagenomic analysis reveals significant changes of microbial compositions and protective functions during drinking water treatment.
published_or_final_versio
- …