Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Piotr, Małkowski"'
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3594 (2024)
The longwall system is an extraction system commonly used in coal mining in many countries, including Poland. One of the methods for reducing extraction costs is the dual use of the gateroad. In the first instance, the gateroad serves as the tailgate
Externí odkaz:
https://doaj.org/article/10fad86220504939944f6d0dddcd16d0
Autor:
Joanna Gotlib, Ilona Cieślak, Dominik Wawrzuta, Mariusz Jaworski, Dimitris Theofanidis, Grażyna Wójcik, Piotr Małkowski, Mariusz Panczyk
Publikováno v:
International Journal of Public Health, Vol 68 (2023)
Objectives: The full-scale Russian invasion of Ukraine resulted in a refugee crisis. The terms of employment of Ukrainian Refugee background Medical Professionals (UKR-MPs) in the Polish healthcare system were liberalised. The aim of the study was to
Externí odkaz:
https://doaj.org/article/ee7b5b639fbd44b4828954bdf79950b5
Publikováno v:
Viruses, Vol 15, Iss 10, p 2067 (2023)
Introduction: Eradication of HCV in the global population remains one of the greatest challenges faced by the WHO. An insufficient level of knowledge and the lack of a national screening test strategy are obstacles to HCV eradication. Aim: This work
Externí odkaz:
https://doaj.org/article/d1c4c071d5cf47059ba1280370aa7f3f
Publikováno v:
Energies, Vol 16, Iss 16, p 5958 (2023)
Artificial construction of a weakening zone over the roadway is an essential method for preventing coal bursts and rock bursts caused by strong mining tremors. However, concerning the seismic absorption and load reduction capabilities of an artificia
Externí odkaz:
https://doaj.org/article/2efe5b83e0d0410a841559f32395fa5c
Publikováno v:
International Journal of Coal Science & Technology, Vol 8, Iss 2, Pp 312-323 (2020)
Abstract Geomechanical data are never sufficient in quantity or adequately precise and accurate for design purposes in mining and civil engineering. The objective of this paper is to show the variability of rock properties at the sampled point in the
Externí odkaz:
https://doaj.org/article/29387afa9a5243d4bedd20dd5fefe5c8
Autor:
Piotr Małkowski, Zbigniew Niedbalski
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 3, Pp 345-355 (2020)
Rockburst hazard in mining industry all over the world is one of the most severe hazards. It is becoming increasingly common because of the ever-growing depths of mining operations accompanied by the increasing strength of rocks. One of the most diff
Externí odkaz:
https://doaj.org/article/e3378595ecd74393a67679124a710170
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Peak particle velocity parameter is very useful in assessing underground mine working stability. Its application is widespread and requires additional analysis of the dominant frequency of the seismic signal. In order to properly analyze the velocity
Externí odkaz:
https://doaj.org/article/778e54001de8496eb5de4f5f0547490d
Publikováno v:
Geofluids, Vol 2021 (2021)
This research is aimed at investigating the influence of the coal height ratio on the mechanical properties and damage behavior of rock-coal-rock combined samples (RCRCS) under coupled static and dynamic loads. For this purpose, a uniaxial cyclic dyn
Externí odkaz:
https://doaj.org/article/28d9fe93ed91429fb367071b53c0371c
Publikováno v:
Energies, Vol 15, Iss 12, p 4340 (2022)
Floor heaving is a phenomenon that occurs in almost all mining roadways and tunnels. It can restrain the advance of the heading face or cause serious problems during roadway use. The highest levels of floor uplifting are observed in coal mines, which
Externí odkaz:
https://doaj.org/article/766c8daf49354e928fe9d0d95f1dc498
Autor:
Krzysztof Tomasiewicz, Robert Flisiak, Jerzy Jaroszewicz, Piotr Małkowski, Małgorzata Pawłowska, Anna Piekarska, Krzysztof Simon, Dorota Zarębska-Michaluk
Publikováno v:
Clinical and Experimental Hepatology. 9:1-8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab3c24155e9a3eabdfdf54bb5d76d6b6
https://doi.org/10.5114/ceh.2023.125957
https://doi.org/10.5114/ceh.2023.125957