Results 1 to 10 of about 3,117,253 (196)

Gas mixture in noninvasive ventilation. [PDF]

open access: yesMed Gas Res
Noninvasive ventilation (NIV) and high-flow nasal cannula are increasingly used to treat acute respiratory failure. Because many of these patients could also benefit from inhaled medications, combining aerosol therapy with NIV or high-flow nasal cannula is a promising approach.
Elshazly M   +5 more
europepmc   +5 more sources

TRANSFORMATION OF THE GAS MIXTURE DURING GAS-DYNAMIC SITUATIONS IN COAL MINES

open access: yesГеохімія техногенезу, 2022
The study of dynamic phenomena became much more complicated when the coal mining industry encountered large-scale manifestations of such a phenomenon as sudden releases of coal, accompanied by significant gas emissions.
N.V. Vergelska, V.V. Vergelska
doaj   +1 more source

A problem-modeling environment for the numerical solution of the Boltzmann equation on a cluster architecture for analyzing gas-kinetic processes in the interelectrode gap of thermal emission converters [PDF]

open access: yesКомпьютерные исследования и моделирование, 2019
This paper is devoted to the application of the method of numerical solution of the Boltzmann equation for the solution of the problem of modeling the behavior of radionuclides in the cavity of the interelectric gap of a multielement electrogenerating ...
Artem Viktorovich Basalaev   +6 more
doaj   +1 more source

The influence of the oxygen equivalent in a gas-mixture on the structure and toughness of microalloyed steel weldments [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
Testing were carried out on two steels. The first was microalloyed with Nb and second with Ti, Nb and V. The impact toughness of weld metals of these steels was evaluated using an instrumented Charpy pendulum.
Prokić-Cvetković Radica   +3 more
doaj   +3 more sources

Modelling of Adsorption of Methane, Nitrogen, Carbon Dioxide, Their Binary Mixtures, and Their Ternary Mixture on Activated Carbons Using Artificial Neural Network [PDF]

open access: yesKemija u Industriji, 2019
This work examines the use of neural networks in modelling the adsorption process of gas mixtures (CO2, CH4, and N2) on different activated carbons. Seven feed-forward neural network models, characterized by different structures, were constructed with ...
Hadjer Barki   +2 more
doaj   +1 more source

Multi-Compound H2, CH4, and N2 Adsorption Analysis

open access: yesMetals, 2022
In order to study the purification of hydrogen and its separation from gas mixtures by adsorption, different models describing the adsorption equilibrium of gas mixtures have been tested; seven of them have been compared with experimental multi-component
Chavdar Chilev   +2 more
doaj   +1 more source

Formation of Functional Silicon Nitride Layers by Selective Plasmochemical Etching

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
At present, with the development of nanotechnology, plasma-chemical etching remains practically the only tool for transferring an integrated circuit pattern in a masking layer to a substrate material due to the fact that the pattern transfer accuracy is ...
V. V. Emelyanov
doaj   +1 more source

Special Cases of Using Visualization Technology for Analyzing the Dynamics of Gaseous Environment

open access: yesFluids, 2021
A new visualization technology is presented, which was used in applied research when observing and modeling the dynamics of the flow of gaseous environments.
Mikhail Sotskiy   +2 more
doaj   +1 more source

Silicon TCD for the methane and carbon monoxide detection

open access: yesJournal of Telecommunications and Information Technology, 2005
Analytical model, design principles, technology and test results concerning a thermal conductivity detector (TCD) are presented. Prototype TCD units fabricated using the standard silicon IC VLSI and MEMS techniques are reported.
Jan M. Łysko   +4 more
doaj   +1 more source

The problem of improving the quality of seriously issued certified reference materials of the composition of gas mixtures

open access: yesСтандартные образцы, 2019
Currently, in the Russian Federation, the metrological traceability of certified reference materials of the composition of gas mixtures in cylinders under pressure produced by manufacturers of certified reference materials is carried out in accordance ...
L. A. Konopelko   +2 more
doaj   +1 more source

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