Zobrazeno 1 - 10
of 4 664
pro vyhledávání: '"Gas Permeability"'
Autor:
Yahaya Hassan Labaran, Nihat Atmaca, Mehmet Tan, Kemal Atmaca, Salim Ali Aram, Ahmed Talib Kaky
Publikováno v:
Discover Civil Engineering, Vol 1, Iss 1, Pp 1-21 (2024)
Abstract This research explores the advanced application of nano-silica (nS) in concrete, emphasizing its significant role in improving the mechanical strength and longevity of concrete structures. Unlike prior studies on nS in concrete, this work go
Externí odkaz:
https://doaj.org/article/e0cfaddca796449694052cb42fe22d60
Publikováno v:
Analytical and Numerical Methods in Mining Engineering, Vol 14, Iss 39, Pp 69-79 (2024)
In recent decades, with the growth of population and the development of metropolitans around the world, the issue of landfill and waste management has become more and more critical. Due to development of radioactive material applications, disposing t
Externí odkaz:
https://doaj.org/article/5d59c67f5d5d446baad79ff7f4e2c3e5
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 6, Pp 2661-2675 (2024)
Abstract Gas outbursts pose a significant threat in the mining of deep low‐permeability coal seams. As mining depth increases, there is a rise in coal and gas dynamic disasters, rendering the gas outburst prevention technology from shallow mining a
Externí odkaz:
https://doaj.org/article/d4afb0e0054a41bbb1bb12bfff8af19e
Autor:
Yu. I. Gutko, V. V. Voytenko
Publikováno v:
Litʹë i Metallurgiâ, Vol 0, Iss 1, Pp 20-25 (2024)
The results of the experimental impact study for the mass fractions of ultra‑fine metal powders added into compositions of core mixtures on technical characteristics and physical properties of the foundry sodium silicate sand cores under influence
Externí odkaz:
https://doaj.org/article/8a3ac1ae776947fc94da279f0b3459f5
Autor:
S. V. Sidorov, Z. M. Rizvanova
Publikováno v:
Georesursy, Vol 25, Iss 4, Pp 115-120 (2024)
This paper proposes a method for determining the boundary values of open porosity (KPO_GR) and gas permeability (KPR_GR) of porous-type carbonate reservoir rocks using the example of Tournaisian deposits of one of the oil fields of the Republic of Ta
Externí odkaz:
https://doaj.org/article/86f07815f70045e2b794ac8715effd0e
Autor:
Fanghua Liu, Kenji Miyatake, Masako Tanabe, Ahmed Mohamed Ahmed Mahmoud, Vikrant Yadav, Lin Guo, Chun Yik Wong, Fang Xian, Toshio Iwataki, Makoto Uchida, Katsuyoshi Kakinuma
Publikováno v:
Advanced Science, Vol 11, Iss 29, Pp n/a-n/a (2024)
Abstract Designing suitable anion exchange ionomers is critical to improving the performance and in situ durability of anion exchange membrane water electrolyzers (AEMWEs) as one of the promising devices for producing green hydrogen. Herein, highly g
Externí odkaz:
https://doaj.org/article/314cbb942cc74cfe976a74294e7c2eb7
Publikováno v:
Floresta e Ambiente, Vol 2, Pp 31-37 (2024)
RESUMO Este trabalho objetiva verificar os resultados obtidos em experimento de determinação de permeabilidade ao ar, pelo método de deslocamento de coluna d'água (Falling-Water Displacement Method) em amostras de madeira de Pinus caribaea Dougl.
Externí odkaz:
https://doaj.org/article/a65c538246584db383c214a61293e56b
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10308 (2024)
Gas gushing and the co-mining of coal and gas outbursts are common disasters in coal mines. The weakening of thick–hard main roof fracturing can effectively alleviate the gas overrun in the initial mining stage. Four numerical simulation schemes we
Externí odkaz:
https://doaj.org/article/aa761c92c9a84f38947af6922da01161
Autor:
Anna Theurel, Marielle Collombet, Alain Burgisser, Caroline Martel, Laurent Arbaret, Rémi Champallier
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 11, Pp n/a-n/a (2024)
Abstract Eruptive dynamics is influenced by gas escape from the ascending magma. Gas pathways form in the magma via bubble coalescence, leading to gas channeling. Magmatic crystals play a key role in gas channel formation. This work constrains experi
Externí odkaz:
https://doaj.org/article/06742e2ebfc34651aa17429bb3a005e9
Autor:
Lisa Ptacek, Alfred Strauss, Damjan Grba, Fabian Sattler, Makrini Macha, Angeliki Kosta, Stefan Marchtrenker, Philip Boisits, Tanja Manninger, Stefan Krispel, Michael Kleiser, Rainer Hausenberger, Roberto Torrent
Publikováno v:
Frontiers in Built Environment, Vol 10 (2024)
In terms of sustainability and durability, performance-based design is becoming increasingly important for the quality assessment of concrete structures. Up to now, prescriptive approaches for concrete composition and processing and the determination
Externí odkaz:
https://doaj.org/article/66af4789e3444408a94913df3312ce99