Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Dariusz Prostański"'
Autor:
Andrzej Wójcik, Józef Jonak, Robert Karpiński, Kamil Jonak, Dariusz Prostański, Roman Kaczyński
Publikováno v:
Advances in Sciences and Technology, Vol 18, Iss 5, Pp 101-112 (2024)
Anchors of various designs are crucial, especially in mining and underground construction, where they stabilise the excavation and prevent the movement of rocks. They make it possible to control the direction of cracking during explosions, limit the
Externí odkaz:
https://doaj.org/article/50ce5702d60d466a85b4cdf715728055
Selection of longwall shearers based on the results of research on the mechanical properties of coal
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The proper selection of cutting longwall winning machines for specific mining and geological conditions requires the development of an appropriate algorithm. The appropriate selection of a machine (shearer) is closely related to acquiring a
Externí odkaz:
https://doaj.org/article/6fba6261c6ad40199f1e54c12d87541e
Publikováno v:
Energies, Vol 17, Iss 13, p 3297 (2024)
In an overwhelming number of cases, the closure of a coal mine in Poland, for safety reasons, requires the installation of a pumping station and systems for the drainage of inflowing water due to its connection via roadways, goaves, or water-leaking
Externí odkaz:
https://doaj.org/article/5914050462ae471bada1c14ccde943ed
Publikováno v:
Energies, Vol 16, Iss 22, p 7513 (2023)
The amounts of biomass in ecosystems depends on the efficiency of energy gathering in organic chemical bonds by autotrophs, which are the only organisms that synthesize inorganic compounds into organic compounds structured into biomass. Plant species
Externí odkaz:
https://doaj.org/article/b981a1a6882242d49292960752f69505
Publikováno v:
Energies, Vol 16, Iss 20, p 7083 (2023)
The biodiversity, including the diversity of autotrophic organisms of mostly plant species, assembled in vegetation patches and its impact on the course of ecosystem processes is still a key subject of research in natural sciences around the world. C
Externí odkaz:
https://doaj.org/article/0920a2d712c349a886824eebfdf34a4f
Publikováno v:
Energies, Vol 16, Iss 15, p 5792 (2023)
This article reviews the most popular energy storage technologies and hybrid energy storage systems. With the dynamic development of the sector of renewable energy sources, it has become necessary to design and implement solutions that enable the max
Externí odkaz:
https://doaj.org/article/5444590e32bb4603abe61e250abc8410
Publikováno v:
Advances in Sciences and Technology, Vol 15, Iss 1, Pp 230-244 (2021)
We verify experimentally the recommendations put forward in the International Standards for anchorage in concrete concerning the assessment of the load-carrying capacity of anchors (the pull-out force) embedded in natural rock material. Regarding the
Externí odkaz:
https://doaj.org/article/2067b1e420364829a20133b47c6881b2
Autor:
Jarosław Kulpa, Paweł Kamiński, Kinga Stecuła, Dariusz Prostański, Piotr Matusiak, Daniel Kowol, Michał Kopacz, Piotr Olczak
Publikováno v:
Energies, Vol 14, Iss 21, p 7337 (2021)
The transformation of the energy sector towards an increased share of renewable energy sources in the energy mix requires attention in the area of electricity storage. Renewable energy sources (photovoltaics or wind energy) are marked by the intermit
Externí odkaz:
https://doaj.org/article/8362fc61351d4633bd290e5a3a22428a
Publikováno v:
Energies, Vol 14, Iss 9, p 2384 (2021)
A method for assessing the operation of analog filters installed in the measuring paths of current and voltage converters in the power supply system of a mining machine motor, using the example of the driving unit of a roadheader’s cutterhead, is p
Externí odkaz:
https://doaj.org/article/ba8e1a67f02a4857ac08f4cbe9dfbd75
Publikováno v:
Energies, Vol 14, Iss 8, p 2110 (2021)
The deepening of a mine shaft is a difficult and dangerous operation. Moreover, it requires the continuous operation of the shaft during the process of deepening. Because of this, it is necessary to leave the plug on the shaft bottom or install an ar
Externí odkaz:
https://doaj.org/article/1d6822d3da35496fafe8bb75dfaeed3c