Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Grzegorz Pach"'
Publikováno v:
GeoScience Engineering, Vol 68, Iss 1, Pp 58-69 (2022)
Using CFD, the paper deals with a simulation of all phenomena related to forced-air duct fitted with a fan, with the emphasis on unit aerodynamic resistance and untight air ducts. We created a 3-dimentional model of the system including perforations
Externí odkaz:
https://doaj.org/article/2c387f79fdb84de0879c092a5651a6c8
Autor:
Paweł Wrona, Zenon Różański, Grzegorz Pach, Adam P. Niewiadomski, Małgorzata Markowska, Andrzej Chmiela, Patrick J. Foster
Publikováno v:
Energies, Vol 16, Iss 22, p 7464 (2023)
With climate change, more intense weather phenomena can be expected, including pressure drops related to the arrival of an atmospheric front. Such drops of pressure are the main reason for gas emissions from closed mines to the surface, and a closed,
Externí odkaz:
https://doaj.org/article/178b87dbdf034287be69a3ef017b58b8
Autor:
Adam P. Niewiadomski, Grzegorz Pach, Zenon Różański, Paweł Wrona, Dariusz Musioł, Pavel Zapletal, Marian Sofranko
Publikováno v:
Energies, Vol 15, Iss 10, p 3672 (2022)
The article presents the results of research into the influence of the location of auxiliary ventilation devices on the distribution of methane concentrations at the outlet of the longwall in an underground mine. Since this area is crucial from the p
Externí odkaz:
https://doaj.org/article/05e783c2b0ff4f40b6fe5eab17ef226a
Publikováno v:
GeoScience Engineering. 68:58-69
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b87e403762102dd2480a7ac33aa2e08
https://doi.org/10.35180/gse-2022-0069
https://doi.org/10.35180/gse-2022-0069
Publikováno v:
Management Systems in Production Engineering, Vol 23, Iss 3, Pp 156-162 (2016)
The paper presents the results of numerical simulations into the distribution of methane concentration at the intersec-tion of two excavations with a fan (turned on) giving the air stream to the area of the crossing. Assumed case represents emergency
Externí odkaz:
https://doaj.org/article/f03a8e6d045d4794917d12e9f02e1e3f
Publikováno v:
Geosciences, Vol 10, Iss 6, p 216 (2020)
The state-of-the-art methods for verifying the correctness of ground improvement performed using the DSM (Deep Soil Mixing) technology are largely focused on the selection of adequate factors impacting the achievement of a correct compressive strengt
Externí odkaz:
https://doaj.org/article/29ca81d3414e43e5b08eb09c45cd2d22
Autor:
Grzegorz Pach, Zenon Różański, Paweł Wrona, Adam Niewiadomski, Pavel Zapletal, Václav Zubíček
Publikováno v:
Energies, Vol 13, Iss 7, p 1755 (2020)
Reversal ventilation is one of prevention methods against fire hazard in underground mines, but it is not recommended for the mines where methane is present. The authors introduce the new method of reversal and by conducting numerical simulations the
Externí odkaz:
https://doaj.org/article/e17e68b45440446da7e25d76ba02418e
Autor:
Pavel Zapletal, Grzegorz Pach, Zenon Różański, Dariusz Musioł, Paweł Wrona, Adam Niewiadomski, Marian Sofranko
Publikováno v:
Energies; Volume 15; Issue 10; Pages: 3672
The article presents the results of research into the influence of the location of auxiliary ventilation devices on the distribution of methane concentrations at the outlet of the longwall in an underground mine. Since this area is crucial from the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f169fedd867e0b94eec98d72d47ccc93
http://hdl.handle.net/10084/148571
http://hdl.handle.net/10084/148571
Publikováno v:
Geosciences, Vol 10, Iss 216, p 216 (2020)
Geosciences
Volume 10
Issue 6
Geosciences
Volume 10
Issue 6
The state-of-the-art methods for verifying the correctness of ground improvement performed using the DSM (Deep Soil Mixing) technology are largely focused on the selection of adequate factors impacting the achievement of a correct compressive strengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adc8b823ddf1d6aa3a297ffd1e4b213c
https://doi.org/10.3390/geosciences10060216
https://doi.org/10.3390/geosciences10060216
Autor:
Stuart J. Day, Yevgeny Vapnik, Hamed Sanei, Jesse Carrie, Fari Goodarzi, Glenn B. Stracher, Claudia Kuenzer, Christoph Hecker, Jianzhong Zhang, Paul A. Schroeder, John K. McCormack, Jhon A. Quintero, Carlos A. Ríos, Zdenek Klika, Petr Martinec, M. Naze-Nancy Masalehdani, Yves Paquette, Frank de Wit, Thomas Witzke, Uwe Kolitsch, Günter Blaß, Anupma Prakash, Rudiger Gens, Sheochandra Prasad, Ashwani Raju, Ravi P. Gupta, Alfred E. Whitehouse, Asep A.S. Mulyana, Jacob Vardi, Giovanni Martinelli, Stefano Cremonini, Eleonora Samonati, Ilia L. Fishman, Yuliya I. Kazakova, Oleg P. Polyansky, Yelena White, Kalik O. Bajadilov, Magdalena Misz-Kennan, Justyna Ciesielczuk, Adam Tabor, Joana Ribeiro, Rui Moura, Deolinda Flores, Duarte B. Lopes, Carlos Gouveia, Sérgio Mendonça, Orlando Frazão, Sorin-Corneliu Rădan, Silviu Rădan, Ellina V. Sokol, Sophia A. Korzhova, Svetlana N. Kokh (Zateeva), Victor V. Sharygin, Ekaterina A. Simonova, Tatyana Minayeva, Andrey A. Sirin, Keith W. Torrance, Christine Switzer, Guillermo Rein, Richard Carvel, Rory Hadden, Claire M. Belcher, Robert B. Finkelman, Denis Pone, Harold Annegarn, Donald R. Blake, Luis Moreno, M. Emilia Jiménez, Russell H. Bartley, Sylvia E. Bartley, Richard E. Carroll, Nancy Lindsley-Griffin, John R. Griffin, Edward L. Heffern, John K. Hiett, James C. Hower, Sarah M. Mardon, Melissa A. Bannes (Nolter), John Styers, Manuel Martínez, Gonzalo Márquez, J. Denis N. Pone, Karen M. McCurdy, Fredrick J. Rich, Lisa LaFosse’, Mark Cummins, Ann G. Kim, Donald Coates, Edward Heffern, Gary Colaizzi, Tammy P. Taylor, Dick Baughman, Melissa A. Barnes (Nolter), Daniel H. Vice, Paul van Dijk, Ben Maathuis, Xiangmin Zhang, Stefan Voigt, Anke Tetzlaf, Zhang Jianzhong, Claudia Künzer, Günter Strunz, Dieter Oertel, Achim Roth, Harald Mehl, Boris Zhukov, Steven Jones, Conri Moolman, Alan Reid, David Glasser, Franco de Andrade, Johan de Korte, Rosemary Falcon, Sezar Uludag, Sydney Ramovha, Dirk Miller, Eddie Dhlamini, John Hiett, Robert B. Finkeman, Jonathan P. Mathews, Kim A.A. Ncube-Hein, Stephen D. Emsbo-Mattingly, Jennifer M.K. O’Keefe, Jan Nel, Peter Peschken, Tom Rogans, Helena Sant’Ovaia, Heloisa Corrêa-Ribeiro, Celeste Gomes, Zhongsheng Li, Colin R. Ward, Brandon Oberweis, Carl Frankel, Peter Reiners, Chris Fleisher, Jimmy Kitson, Larry H. Barwick, Jean-Luc Bouchardon, Bernard Guy, Jean Chalier, Boris Khesin, Itkis Sonya, Reginald Shagam, Margarete Vasterling, Stefan Schloemer, Uwe Meyer, Christian Fischer, Christoph Ehrler, Svetlana N. Kokh, Sofya Korzhova, Yevgeny Kudinov, Nadezhda Kiriltseva, Zenon Różański, Paweł Wrona, Jan Drenda, Grzegorz Pach, Phan Quang Van, Tran van Thanh, Le Van Thao, Mikhail N. Murashko, Zulfiya A. Murashko, Sergey N. Britvin, Scott A. Stout, Mark Engle, Ricardo A. Olea, Allan Kolker, Jennifer Beck, Jana Palmer, Bryan Benton, Ketan Chauhan, William A. Brantley, Allyana Fultz, Shannon Fultz, Joy Hayslip, Roy 'Chris' C. Jones, Jessica Martin, Traci Waters, Kimberly Thompson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77a27a320c581c6ecaa395f3cc4af80e
https://doi.org/10.1016/b978-0-444-59412-9.01002-4
https://doi.org/10.1016/b978-0-444-59412-9.01002-4