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cold gas

Momentum spread of spontaneously decaying cold gas in thermal radiation

Momentum spread of spontaneously decaying cold gas in thermal radiation

... We develop the theory starting from the master equation with quantization of the c.m. momentum and derive the gen- eralized Bloch equations for the populations 共 presented in Appendix A 兲 . In Sec. II, we show that the ...

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The ATLAS3D project   XXVII  Cold gas and the colours and ages of early type galaxies

The ATLAS3D project XXVII Cold gas and the colours and ages of early type galaxies

... and gas depletion time-scales. At present we conclude that the cold gas in early-type galaxies includes some gas which may have been retained through the quenching transition to the red ...

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Evolution of the cold gas properties of simulated post starburst galaxies

Evolution of the cold gas properties of simulated post starburst galaxies

... significant cold gas reservoir, can become quiescent is an open question, which we aim to address here by studying the star-forming gas of PSB galaxies within the cosmological, hydrodynamic EAGLE ...

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Numerical calculation of particle motion in cold gas dynamic spray

Numerical calculation of particle motion in cold gas dynamic spray

... Cold gas dynamic spraying (CGDS or cold spray) is a process in which powder particles of spraying material are involved in high-speed gas ...the gas stream and impact with the substrate ...

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The erosion performance of particle reinforced metal matrix composite coatings produced by co-deposition cold gas dynamic spraying

The erosion performance of particle reinforced metal matrix composite coatings produced by co-deposition cold gas dynamic spraying

... Cold gas dynamic spraying (cold spray) is a low temperature surface engineering process that is used to deposit coatings on a variety of substrate materials through the acceleration and impingement ...

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An investigation on powder stream in Cold Gas Spray (CGS) nozzles

An investigation on powder stream in Cold Gas Spray (CGS) nozzles

... as Cold Gas Spray (CGS), has widely attracted the interest of ...supersonic gas stream (carrier ...expensive gas, but it is capable of generating velocity magnitudes in the order of thousands ...

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An investigation of the cold gas dynamic supersonic spray process particle/flow field.

An investigation of the cold gas dynamic supersonic spray process particle/flow field.

... be cold-sprayed as a mixture with a ductile (matrix) material [15], Nano­ phase, inter-metallic and amorphous materials, which are not amenable to conventional thermal spray processes (due to thermal degradation o ...

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An Investigation on Performance of a Horizontal Entrained Flow Gasifier

An Investigation on Performance of a Horizontal Entrained Flow Gasifier

... Fuel conversion and cold gas efficiency (CGE) are major parameters for assess- ing the performance of the gasification process. The former expresses the fuel proportion converted into gas products. ...

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Exact electrodynamics versus standard optics for a slab of cold dense gas

Exact electrodynamics versus standard optics for a slab of cold dense gas

... We study light propagation through a slab of cold gas using both the standard electrodynamics of polarizable media, and massive atom-by-atom simulations of the electrodynamics. The main finding is that the ...

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A THEORETICAL STUDY OF SUPER FLUID ? INSULATOR PHASE TRANSITION IN A GAS OF ULTRA COLD ATOMS AND EVALUATION OF ATOM DENSITY DISTRIBUTION AS A FUNCTION OF DISTANCE FROM THE CENTRE OF TRAP (R/A) USING BOSE-HUBBARD MODEL

A THEORETICAL STUDY OF SUPER FLUID ? INSULATOR PHASE TRANSITION IN A GAS OF ULTRA COLD ATOMS AND EVALUATION OF ATOM DENSITY DISTRIBUTION AS A FUNCTION OF DISTANCE FROM THE CENTRE OF TRAP (R/A) USING BOSE-HUBBARD MODEL

... The Bose-Hubbard model 1,2 is one of the standard models for studying the interacting particles in a cold gas placed in an optical lattice. The reported realization 3 of a quantum phase transition between ...

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Quantum threshold for optomechanical self-structuring in a Bose-Einstein condensate

Quantum threshold for optomechanical self-structuring in a Bose-Einstein condensate

... In cold atomic gases the additional presence of op- tical dipole forces leads to density self-organization and removes the requirement for an intrinsic optical nonlin- ...atomic gas from sponta- neous ...

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Gasification of Petcoke and Coal/Biomass Blend: A Review

Gasification of Petcoke and Coal/Biomass Blend: A Review

... The production of petcoke has reached approximately 150 million metric ton per annum (MMTPA) for which the United States alone is responsible for 47 % of total production [1]. The petcoke production is anticipated to ...

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... Ethnobotanical investigations on the locally produced oil seed plants in Burkina Faso revealed that oil from Lannea microcarpa seeds are frequently used for food, cosmetics and traditional medicine by the local people ...

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Radiation trapping in a dense cold Rydberg gas

Radiation trapping in a dense cold Rydberg gas

... In conclusion, we have shown that multiple scatter- ing plays an important role in dense Rydberg gases. It is likely to affect quantum devices based on Rydberg- mediated optical nonlinearities. Although photonic gates ...

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Performance Evaluation and Recurring Jamming Problem Analysis of Air Preheater in Coal Fired Power Plants

Performance Evaluation and Recurring Jamming Problem Analysis of Air Preheater in Coal Fired Power Plants

... flue gas exerted the most significant effect on the heat transfer ...of gas through the seals was also introduced [4], and an adjusting method to reduce the seal clearances in radial seals was further ...

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PHYTOCHEMICAL EVALUATION AND HPTLC FINGERPRINT PROFILE OF CISSUS LATIFOLIA LAM  STEM

PHYTOCHEMICAL EVALUATION AND HPTLC FINGERPRINT PROFILE OF CISSUS LATIFOLIA LAM STEM

... ABSTRACT: Cissus latifolia Lam. (Vitaceae) is a woody climber with leaf- opposed tendrils. It is a medicinal plant used in the traditional system of medicine for the treatment of various ailments. The present study ...

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Impact of occupational exposures on exacerbation of asthma: a population-based asthma cohort study

Impact of occupational exposures on exacerbation of asthma: a population-based asthma cohort study

... When performing multiple logistic regression, overall asthma exacerbation was associated with self-reported exposures to any gas, smoke or dust (OR 1.4, 95 % CI 1.1–1.8), organic dust (OR 1.4, 95 % CI 1.0–1.8) and ...

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On a ‘time’ reparametrization in relativistic electrodynamics with travelling waves

On a ‘time’ reparametrization in relativistic electrodynamics with travelling waves

... The above results are based on a laser spot size R = ∞ (plane wave). When including corrections due to the finite R (based on causality and heuristic estimates), they im- ply: the impact of a very short and intense laser ...

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The Composition and Downward Vertical Transport of Particulate Phosphorus in the Cariaco Basin, Venezuela

The Composition and Downward Vertical Transport of Particulate Phosphorus in the Cariaco Basin, Venezuela

... of gas hydrates as a result of a decreased hydrostatic pressure and a drop in sea level or changes in water temperatures during the LGM was not the trigger for Woolsey Mound ...this cold seep and gas ...

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Estimation of greenhouse gas emission factors based on observed covariance of CO2, CH4, N2O and CO mole fractions

Estimation of greenhouse gas emission factors based on observed covariance of CO2, CH4, N2O and CO mole fractions

... as the boundary-layer height is decreasing the emission starts increasing the concentrations in it. However, this phenomenon cannot be observed during the episodes in January (r = 0.18 and r = − 0.02, respectively), ...

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