Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Stand-up time"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 6, Pp 1219-1231 (2022)
This paper proposes a digital image processing-based detection algorithm for cross joint traces of coal roadway heading face. Initially, the acquired images were preprocessed, i.e., adaptive correction was conducted for non-uniform illumination image
Externí odkaz:
https://doaj.org/article/bed58fe2fe25404cb414420e38aa2513
Autor:
Phong Duyen Nguyen, Hiep Huy Nguyen, Hung Huu Dam, Manh Van Nguyen, Piotr Osinski, Eugeniusz Koda
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 1736 (2024)
Throughout all the countries in the world, including Vietnam, nations with well-established mining industries have undertaken extensive research on the stability of rock masses when constructing underground tunnels in varied geological conditions. Th
Externí odkaz:
https://doaj.org/article/64e046bc5b1b46b4b5c477c9345c0eb6
Autor:
Lichun Jiang, Wei Liu
Publikováno v:
Applied Sciences, Vol 14, Iss 1, p 325 (2023)
The immediate roof of Shanxi sedimentary bauxite is hard clay rock, which maintain stable difficultly in goaf. It is necessary to ensure the stability of the goaf during the mine production period. The relevant research objects did not involve soft r
Externí odkaz:
https://doaj.org/article/1d518463d2cb4051a029f9ece992b977
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 2, Pp 377-384 (2022)
Polymer-based materials have been motivated to be an alternative support system element in the mining/tunneling industry due to their logistic and geotechnical benefits. Thin spray-on liner (TSL), a term to define the application of the material on t
Externí odkaz:
https://doaj.org/article/85c5fff401dc42b5aa13784d12cbef20
Akademický článek
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Publikováno v:
JGE, Vol 6, Iss 3, Pp 205-215 (2020)
The Bener Dam Diversion Tunnel Plan is located in Bener District, Purworejo Regency. Engineering geology mapping data, drillimg data and laboratory data used as primary data. Surface and subsurface analysis show that each rock unit has different inde
Externí odkaz:
https://doaj.org/article/c64208407bcb433bb8d9d9fe41279192
Akademický článek
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Akademický článek
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Autor:
Diogo Luís Marques, Henrique Pereira Neiva, Ivan Miguel Pires, Eftim Zdravevski, Martin Mihajlov, Nuno M. Garcia, Juan Diego Ruiz-Cárdenas, Daniel Almeida Marinho, Mário Cardoso Marques
Publikováno v:
Sensors, Vol 21, Iss 6, p 2050 (2021)
Smartphone sensors have often been proposed as pervasive measurement systems to assess mobility in older adults due to their ease of use and low-cost. This study analyzes a smartphone-based application’s validity and reliability to quantify tempora
Externí odkaz:
https://doaj.org/article/9510d5889718411e91c8a9e4ba9dccec
Autor:
Hafeezur Rehman, Wahid Ali, Abdul Muntaqim Naji, Jung-joo Kim, Rini Asnida Abdullah, Han-kyu Yoo
Publikováno v:
Applied Sciences, Vol 8, Iss 8, p 1250 (2018)
Although rock-mass rating (RMR) and tunneling quality index (Q) systems are used in different rock engineering projects as empirical design tools, their application in tunnel design is widely accepted as these systems were developed and updated for t
Externí odkaz:
https://doaj.org/article/88168869b1314a78acd6cd4fa82bd5e4