Results 1 to 10 of about 2,112,655 (300)

Molecular gas content of H i monsters and implications to cold gas content evolution in galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
We present 12CO (J=1-0) observations of a sample of local galaxies (0.043e10Msun from the ALFALFA survey and 8 LSBs with a comparable M(HI) (>1.5e10Msun). Our sample selection is purely based on the amount of neutral hydrogen, thereby providing a chance to study how atomic and molecular gas relate to each other in these HI-massive systems.
Lee, Cheoljong   +5 more
openaire   +3 more sources

Prediction model of coal seam gas content based on ACSOA optimized BP neural network

open access: yesMeikuang Anquan, 2022
For the problem of coal seam gas content prediction, the influencing factors of coal seam gas content were analyzed by taking No.2 coal seam of Chensilou Coal Mine as the research object.
Prediction model of coal seam gas content based on ACSOA optimized BP neural network
doaj   +1 more source

A New Method for Predicting the Gas Content of Low-Resistivity Shale: A Case Study of Longmaxi Shale in Southern Sichuan Basin, China

open access: yesEnergies, 2023
Low-resistivity shales are widely developed in the Sichuan Basin. The production of low-resistivity shale gas reservoirs ranges from high to low to none.
Xianggang Duan   +7 more
doaj   +1 more source

Method for Intensive Gas–Liquid Dispersion in a Stirred Tank

open access: yesChemEngineering, 2023
This article presents the results of hydrodynamics and mass exchange in a stirred tank upon the introduction of gas from an open gas vortex cavity into local liquid regions with reduced pressure.
Nikolai A. Voinov   +4 more
doaj   +1 more source

Characteristics of Pore Structure and Gas Content of the Lower Paleozoic Shale from the Upper Yangtze Plate, South China

open access: yesEnergies, 2021
This study is predominantly about the differences in shale pore structure and the controlling factors of shale gas content between Lower Silurian and Lower Cambrian from the upper Yangtze plate, which are of great significance to the occurrence mechanism
Xiaoyan Zou   +5 more
doaj   +1 more source

Gas Flows and Gas Contents in Globular Clusters [PDF]

open access: yesProgress of Theoretical Physics, 1979
The flow of gas injected from stars in globular clusters is numerically studied by means of the time-dependent beam scheme. By using structural parameters derived by Peterson and King (1975) and taking radiative cooling and ultraviolet heating into account, we obtain the time variation of velocity, temperature and density distributions in the gas flows
Y. Tanaka   +5 more
openaire   +1 more source

Molecular gas content of shell galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2019
Shells are fine stellar structures that are identified by their arc-like shapes around a galaxy. They are currently thought to be vestiges of galaxy interactions and/or mergers. The study of their number, geometry, stellar populations, and gas content can help us to derive the interaction or merger history of a galaxy.
Mancillas, B.   +2 more
openaire   +4 more sources

Automatic Measurement Device of Gas Desorption Data in Laboratory

open access: yesMeikuang Anquan, 2020
The method of direct volume measurement via drainage is often applied in the process of measuring gas desorption in laboratory, but there are many problems such as too many people involved, large error in reading and complicated measurement process. The
ZHANG Rui
doaj   +1 more source

Experimental study and weighting analysis of factors influencing gas desorption

open access: yesFrontiers in Earth Science, 2023
Gas is one of the necessary contributing factors for coal and gas outburst accidents, and the gas desorbed in coal is the energy carrier in the outburst process.
Xin He   +6 more
doaj   +1 more source

The effect of special additives on the physico-mechanical properties of mixtures used for the manufacture of cores by the cold-box-amine-process

open access: yesЛитьë и металлургия, 2023
The article presents an analysis of the effect of various special additives on the physical and mechanical properties of sand‑resin mixtures used for the manufacture of cores by the cold‑box‑amine process.
S. V. Koreniugin, S. L. Rovin
doaj   +1 more source

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