Zobrazeno 1 - 10
of 1 733
pro vyhledávání: '"B. Apel"'
Publikováno v:
Applied Sciences, Vol 14, Iss 12, p 5209 (2024)
Rock bursts are dynamic phenomena in underground openings, causing damage to support and infrastructure, and are one of the main natural hazards in underground coal mines. The prediction of rock bursts is important for improving safety in mine openin
Externí odkaz:
https://doaj.org/article/18cc2387841f41eaae7857570fb83bbf
Publikováno v:
Minerals, Vol 14, Iss 4, p 331 (2024)
Flotation stands out as a successful and extensively employed method for separating valuable mineral particles from waste rock. The efficiency of this process is subjected to the distinct physicochemical attributes exhibited by various minerals. Howe
Externí odkaz:
https://doaj.org/article/7ed04c79093248eea55954e30f5286b7
Autor:
Jun Wang, Derek B. Apel, Artur Dyczko, Andrzej Walentek, Stanisław Prusek, Huawei Xu, Chong Wei
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 6, Pp 1671-1696 (2022)
Strainburst is the most common type of rockbursts. The research of strainburst damage mechanisms is helpful to improve and optimize the rock support design in the burst-prone ground. In this study, an improved global-local modeling approach was first
Externí odkaz:
https://doaj.org/article/c691bef62caf4a3f99e072fb03398c9b
Publikováno v:
International Journal of Coal Science & Technology, Vol 9, Iss 1, Pp 1-26 (2022)
Highlights: (1) Energy-absorption capacity of yielding rockbolts in rockbursts is evaluated. (2) Rock deformation and rockburst damage are quantitatively assessed. (3) Performance of yielding rockbolts in weak and strong rockbursts is studied. (4) Ef
Externí odkaz:
https://doaj.org/article/073fe82fe8a246649d2fc2ef6a2733c2
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 3, Pp 703-713 (2022)
The risk of rockbursts is one of the main threats in hard coal mines. Compared to other underground mines, the number of factors contributing to the rockburst at underground coal mines is much greater. Factors such as the coal seam tendency to rockbu
Externí odkaz:
https://doaj.org/article/6bf14ab61849450dbc526e835ca1c4bc
Publikováno v:
Mining, Vol 1, Iss 2, Pp 155-166 (2021)
Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operations in underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability in underground workings and then improve ground stability of the
Externí odkaz:
https://doaj.org/article/8b11c0a4bb56400aa5f6908b2beb063b
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 13, Iss 2, Pp 457-478 (2021)
As the depth of excavation increases, rockburst becomes one of the most serious geological hazards damaging equipment and facilities and even causing fatalities in mining and civil engineering. This has forced researchers worldwide to identify differ
Externí odkaz:
https://doaj.org/article/17ef032d609a45139d1abac70342a6c1
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 6, Pp 909-915 (2020)
Strategic maintenance plays a key role in ensuring high availability and utilization of the haul trucks, and as equipment began to grow more complex towards the end of the 20th century, there was a need for a proactive maintenance strategy, which led
Externí odkaz:
https://doaj.org/article/719d3f28bfc24ede9392486880cf666e
Publikováno v:
Biomedical Engineering Advances, Vol 2, Iss , Pp 100010- (2021)
The purpose of this study is to investigate occlusal stresses in beveled versus non-beveled tooth preparation in class I restoration when using composite restorative material. Completed plastic tooth preparations were scanned using a 3D intra-oral sc
Externí odkaz:
https://doaj.org/article/9a5120e5cd744c40a129d5c23f395feb
Publikováno v:
Revista Română de Drept al Afacerilor; 2020, Issue 2, p237-247, 11p