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Gas Absorption

TDLAS detection of propane/butane gas mixture by using reference gas absorption cells and partial least square (PLS) approach

TDLAS detection of propane/butane gas mixture by using reference gas absorption cells and partial least square (PLS) approach

... real-time absorption spectra of propane and butane in the gas mixture were firstly separately extracted by using the real-time spectra of known samples of both propane and butane gas placed in the ...

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Detection of bacterial growth by gas absorption

Detection of bacterial growth by gas absorption

... Ahnell's result may have been an artifact caused by the very large initial inoculum of 0.5 ml from an overnight culture more than ten million times greater than that seen in blood cultur[r] ...

5

Studies of Gas Absorption In Infrared Spectra of Carbon-Rich AGB Stars

Studies of Gas Absorption In Infrared Spectra of Carbon-Rich AGB Stars

... column density of 2.0 × 10 20 cm -2 and Doppler velocity of 10 km/s, which is the mean value (see Section 3.5). We can see the overall shape is matched, except for the local maxima at the lower wavelength side of the two ...

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Towards imaging of atmospheric trace gases using Fabry–Pérot interferometer correlation spectroscopy in the UV and visible spectral range

Towards imaging of atmospheric trace gases using Fabry–Pérot interferometer correlation spectroscopy in the UV and visible spectral range

... trace gas imaging in the UV–Vis ...spectral absorption structures of trace gases that often show a similar ...trace gas absorption spectrum, a high sensitivity can be reached and cross inter- ...

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Gas analysis in the deep ultraviolet wavelength region using fibre-optics and spectrophotometric detection

Gas analysis in the deep ultraviolet wavelength region using fibre-optics and spectrophotometric detection

... in comparatively short sampling time for a spectrum, depending on the light intensity, good Signal to Noise ratio (SNR) and good stray light behaviour, which is comparable to most laboratory systems. In addition, the ...

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Analysis on numerical simulations of CO2 absorption process of carbon solidification system

Analysis on numerical simulations of CO2 absorption process of carbon solidification system

... pressure distribution of solution and gas path and velocity in solution. This numerical simulation results also indicates the impact of environment temperature on chemical reaction rate. A comparison between ...

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Enhancement Factor Simulation of H 2

Enhancement Factor Simulation of H 2

... In gas absorption in which gas-liquid mass transfer is accompanied by a chemical reaction in the liquid phase the gas absorption rate may be enhanced ...of absorption because it ...

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THERMODYNAMIC ANALYSIS OF A GAS OPERATED TRIPLE EFFECT ABSORPTION CYCLE

THERMODYNAMIC ANALYSIS OF A GAS OPERATED TRIPLE EFFECT ABSORPTION CYCLE

... effect gas absorption chiller was commercialized in October 5, ...This absorption chiller is a “green” air conditioning system that provides heating/ cooling for large commercial ...

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On the exponential growth of solutions to non linear hyperbolic equations

On the exponential growth of solutions to non linear hyperbolic equations

... These equations appear in a mathematical model for the dynamics of gas absorption [i], and the main interest is to find solutions of exponential growth to a non-linear hyperbolic equatio[r] ...

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International Journal of Partial Differential Equations and Applications

International Journal of Partial Differential Equations and Applications

... Among various boundary value problems in the field of phenomena transport, in Section 2, we introduce some of its known problems such as gas absorption and solid dissolution in falling film, ...

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Caution with spectroscopic NO2 reference cells (cuvettes)

Caution with spectroscopic NO2 reference cells (cuvettes)

... optical absorption spec- troscopy (DOAS), are frequently supported by recording the trace-gas column density (CD) in absorption cells (cuvettes), which are temporarily inserted into the light ...

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Characterization and verification of ACAM slit functions for trace-gas retrievals during the 2011 DISCOVER-AQ flight campaign

Characterization and verification of ACAM slit functions for trace-gas retrievals during the 2011 DISCOVER-AQ flight campaign

... of absorption and the ring effect but can differ by up to ∼ ...including absorption and ring effect on slit widths and wave- length shifts are very similar when assuming asymmetric Gaussian slit ...

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Mathematical Modeling of Gas Separation in Flat-sheet Membrane Contactors

Mathematical Modeling of Gas Separation in Flat-sheet Membrane Contactors

... of gas and liquid velocities without any flooding, loading, weeping, or foaming, pre-determined gas–liquid interfacial area, membrane modules, capability of linear scale-up; low corrosion problems, and low ...

6

Performance analysis of a regenerative gas turbine plant modeled with vapour absorption refrigeration system

Performance analysis of a regenerative gas turbine plant modeled with vapour absorption refrigeration system

... a gas turbine is the ambient ...the gas turbine depends largely on the air mass flow through ...vapour absorption refrigeration system on the performance of a GT plant were ...that gas turbine ...

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Near/Mid IR Differential Absorption OPO Lidar System for Gas Analysis of the Atmosphere

Near/Mid IR Differential Absorption OPO Lidar System for Gas Analysis of the Atmosphere

... The The problem of remote monitoring of atmospheric gases and detection of dangerous gases is topical in view of needs in avoiding technogenic threats and counterterrorism. Dangerous impurities propagate in the ...

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The effects of gas-phase and in-depth radiation absorption on ignition and steady burning rate of PMMA

The effects of gas-phase and in-depth radiation absorption on ignition and steady burning rate of PMMA

... It is possible that radiation incident on the exposed surface may be attenuated by gas- phase absorption above the sample. Beaulieu [2], [3], was unable to estimate attenuation for a pyrolysing PMMA sample ...

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Velocity measurements of the liquid - gas flow using gamma absorption and modified conditional averaging

Velocity measurements of the liquid - gas flow using gamma absorption and modified conditional averaging

... The absorption measurement is non-invasive, and at the same time allows determining the velocity and concentration of a minority phase with use of the same ...

5

Different Interaction Mechanisms of Evaporated Porphyrin Films Exposed to NO2

Different Interaction Mechanisms of Evaporated Porphyrin Films Exposed to NO2

... characteristic absorption spectra and the ability to transfer charge carriers, and therefore, interesting conductive properties, among ...specific gas interactions have suggested that these systems ...

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Optical gas sensors based on correlation spectroscopy using a Fabry Perot interferometer

Optical gas sensors based on correlation spectroscopy using a Fabry Perot interferometer

... In chapter 4 the case when the FPI is illuminated with a converging beam is analysed. In this chapter a mathematical model capable of calculating the FPI fringe pattern considering a converging beam is presented. Here a ...

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Gas around galaxy haloes   III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite

Gas around galaxy haloes III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite

... ments. On increasing the mass resolution, Faucher-Gigu`ere et al. (2016) were able to reproduce the covering fraction of optically thick absorbers within the virial radius of QSOs. Notably AGN feedback was still not ...

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