Zobrazeno 1 - 10
of 112
pro vyhledávání: '"farhang sereshki"'
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 58, Iss 1, Pp 1-9 (2024)
The ventilation design of mines is based on fluid dynamics. Air is the main fluid in mining ventilation. This fluid is analyzed by two models: incompressibility and compressibility. The air-fluid in the compressibility model is examined in two models
Externí odkaz:
https://doaj.org/article/f71f4126e90144bc9bf0a75abbc47377
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 5, Pp 153-163 (2024)
Operations research is a science that is used in various fields. This science is a set of quantitative techniques that help managers make decisions using scientific methods. This science is related to many axial decision-making issues of managers. Fo
Externí odkaz:
https://doaj.org/article/53d2c32968104f0ba3c9578ac5a59578
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 5, Pp 165-180 (2024)
Underground coal mines are always faced with their own specific uncertainties. These uncertainties lead to safety risks and ultimately result in chaos and safety disturbances. Human factors are among the uncertainties that play a vital role in variou
Externí odkaz:
https://doaj.org/article/6fd93a9461604acb8895640ae5fdf816
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 4, Pp 55-76 (2024)
The purpose of this study is to review some of the key research concepts related to metallurgical coke. As the research landscape for coke metallurgy is evolving, researchers are increasingly interested in the effects of the intrinsic properties of c
Externí odkaz:
https://doaj.org/article/29b88224bcc84ba8a586fcc600cf1053
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 39, Iss 3, Pp 77-94 (2024)
An essential component of guaranteeing the security of underground coal mines is the stability of underground areas. Coal pillars are left in place in underground coal mines to stabilize opened regions where excavations have redistributed in situ str
Externí odkaz:
https://doaj.org/article/ab4b0bee85aa4b638493dde3b69ae1f8
Publikováno v:
Mining, Vol 3, Iss 2, Pp 304-333 (2023)
Blasting operations in open-pit mines generally have various management strategies relating to flyrock. There are empirical models for calculating the flyrock distance, but due to the complexity and uncertainty of rock properties and their interactio
Externí odkaz:
https://doaj.org/article/1204d35816d34951be1db301a0d4f959
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 55, Iss 2, Pp 151-156 (2021)
In recent years, using of the resilience concept has been increased in order to evaluate the response of systems against the failures. Resilience depicts the system ability to return to its normal operational status after failure accruing. According
Externí odkaz:
https://doaj.org/article/954676432b594aa4b9df2f1ea21764c1
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 55, Iss 2, Pp 133-143 (2021)
Ventilation network design is done in manual and computerized methods. Computerized method is based on mathematical approximate methods. Several algorithms were presented in mathematical approximate methods for analyzing of water distribution and ven
Externí odkaz:
https://doaj.org/article/da94750cf4604769ae85ecd3cbde9638
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 2, Pp 69-81 (2021)
Since coal mining production systems are very complex, repairing equipment is expensive. If a system failure occurs, it will cause disturbances such as inoperable equipment, reduced operating time, increased production costs, and reduced equipment pe
Externí odkaz:
https://doaj.org/article/7c96290f54f54f8494613ccc5cb2a131
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 3, Pp 1-17 (2021)
There is a high rate of casualty among miners in the world every year. One way to reduce accidents and increase safety in mines is to use the risk management process to identify and respond to major hazards in mines. The present study is an attempt t
Externí odkaz:
https://doaj.org/article/28ef52115987462391124a2f1bb8a64e