Gas trap

Definitions

  • Webster's Revised Unabridged Dictionary
    • Gas trap a drain trap; a sewer trap. See 4th Trap, 5.
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Usage

In literature:

Cellars may give protection from fire or melinite; but they are worse than death traps against the heavy fumes of poisonous gas.
"America's War for Humanity" by Thomas Herbert Russell
The capacity of water to absorb sewer gas is very great, consequently the water in the trap would absorb this gas.
"Scientific American Supplement, No. 421, January 26, 1884" by Various
I felt that I was trapped indeed, and to make matters worse, a villainous smell of gas was fast taking possession of the carriage.
"A Cabinet Secret" by Guy Boothby
The drain should be provided with bell traps to prevent the entrance of sewer gas into the factory.
"The Book of Cheese" by Charles Thom and Walter Warner Fisk
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In news:

Vent wells being drilled for trapped gas.
The emergency preparedness director for Assumption Parish says wells are being dug to vent and investigate natural gas trapped beneath a community near a 4-acre sinkhole.
An unknown amount of gas is trapped below Bayou Corne.
Team Looks at Seafloor as Gas Trap .
McKay said the geology that kept oil and natural gas trapped underground for more than 100 million years is what geologists are banking on to make the sequestered CO2 stay put.
Team Looks at Seafloor as Gas Trap.
The MV Multi-Trap® Vacuum Inlet Trap is designed to keep vacuum molding presses operating by protecting their vacuum pump s from waxes, polymers, volatile vapors and moisture from the gas stream.
GOP is trapped in the 1980s , 'out of gas.
Britain's government has given the go-ahead to resume fracking - the controversial practice of drilling for gas trapped in shale - in the U.K.
A criminal finds himself trapped in the very gas station he just robbed.
CUMBERLAND — Several local citizens advocated a cautious approach to drilling for gas trapped in Marcellus Shale in Western Maryland at a prelegislative meeting with District 1 legislators.
One country – the United States – created technology to get at gas and oil trapped in shale and turn that into economic resources (beats harassing penguins).
Geologists have long known about huge natural gas deposits trapped in shale rock formations, but it is only over the past decade that energy companies have combined two established technologies to unlock this resource.
Newly accessible reserves of gas trapped between shale rock has re-invigorated the energy industry – and could help the economy as a whole.
(AP) – In six years of trapping, one thing has become apparent to Cody Champ: His pursuit of animal pelts isn't cheap, costing him $100 a week just for gas.
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In science:

He finds that hot gas is not trapped in the disk as occurred in the 2D models.
The Dynamical Interstellar Medium: Insights from Numerical Models
Gas trapped in the cells can also increase the stiffness, but this effect is usually negligible .
Elastic moduli of model random three-dimensional closed-cell cellular solids
In the case of trapped condensates, vapors of alkali-metal atoms are kept in a metastable gas-phase down to temperatures of the order of tens of nanokelvin, where quantum effects becomes dominant.
Helium nanodroplets and trapped Bose-Einstein condensates as prototypes of finite quantum fluids
However, this entropy is initially “trapped” within the substructures, and we now discuss to what extent it is available to the intracluster gas.
The phase-diagram of the IGM and the entropy floor of groups and clusters: are clusters born warm?
Some feedback from the gas trapped within galaxies, for instance, is expected, since the cluster gas is known to contain metals.
The phase-diagram of the IGM and the entropy floor of groups and clusters: are clusters born warm?
We therefore assume here that for our trapped gas, a source of decoherence comes from the fact that atoms can leave the trap, because of 3-body collisions for example.
Large amplitude spin waves in ultra-cold gases
Bose-Einstein condensation, originally observed in a dilute atomic gas trapped in a harmonic potential [1, 2], is today obtained in a variety of experimental configurations.
From the superfluid to the Mott regime and back: triggering a non-trivial dynamics in an array of coupled condensates
More recently, some authors [23, 24, 25] suggested to describe the dynamics of ultracold dilute gas of bosonic atoms trapped in an optical lattices by means of a BHM.
From the superfluid to the Mott regime and back: triggering a non-trivial dynamics in an array of coupled condensates
We calculate the tunnel gaps of conductivity and propose a tunneling optical trap (TOT) for quantum dot isolation permitting coherent molecular tunneling by virtue of Josephson oscillations in a charged Bose gas.
Broken Symmetry and Coherence of Molecular Vibrations in Tunnel Transitions
It is worthwhile to note that the charged Bose gas trapped in the double well potential Uσ of Eqs. 59 behaves as an inverted Josephson junction (NS-S-N).
Broken Symmetry and Coherence of Molecular Vibrations in Tunnel Transitions
More precisely, the gas is harmonically trapped and it rotates at a frequency close to the trapping frequency so that it is ‘frozen’ in the lowest Landau level (LLL) [4, 5].
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
The ideal gas in our model is confined in a harmonic trap, with oscillation frequency ω in the xy plane and ωz along z .
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
In the trap center, one can also construct an exact mapping to a solvable problem, the calculation of the canonical partition function and occupation numbers for a 1D ideal Bose gas in a harmonic trap .
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
The maximal density of the non-condensed fraction of the gas is ∼ kB T /[π (ω − Ω)] close to the trap center, obtained for |µ| ≪ (ω − Ω).
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
It is worth comparing Eqs. (8) and (10) with the analogous results holding for a trapped Bose-Einstein condensed gas in the ThomasFermi limit (Dalfovo et al., 1999).
Theory of ultracold Fermi gases
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