Zobrazeno 1 - 10
of 890
pro vyhledávání: '"A. Ulmanu"'
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2016, Vol. 68 Issue 1, p99-100. 2p.
Publikováno v:
Annals: Series on engineering sciences (Academy of Romanian Scientists), Vol 7, Iss 2, Pp 103-112 (2015)
Petroleum drilling rigs are used for identifying geologic reservoirs and for creating wells for extraction. The mud pumps of drilling rigs are operated at high mud rates to make possible the drilling process. The durability of the mud pump valves to
Externí odkaz:
https://doaj.org/article/3f16b1ad44064e8d86bff502d944eb85
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2010, Vol. 62 Issue 2, p155-162. 8p. 4 Color Photographs, 2 Diagrams, 6 Charts, 2 Graphs.
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2016, Vol. 68 Issue 1, p7-12. 6p. 1 Diagram, 2 Charts, 5 Graphs.
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2016, Vol. 68 Issue 1, p1-6. 6p. 2 Color Photographs, 1 Diagram.
Autor:
Iancu, Marius1 iancu@clicknet.ro, Ulmanu, Vlad2 vulmanu@upg-ploiesti.ro
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2014, Vol. 66 Issue 3, p87-94. 8p. 3 Color Photographs, 1 Black and White Photograph, 10 Charts, 2 Graphs.
Publikováno v:
In Waste Management 2010 30(2):228-235
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2013, Vol. 65 Issue 4, p52-58. 7p. 1 Black and White Photograph, 3 Diagrams, 4 Charts, 3 Graphs.
Autor:
Ulmanu, Vlad1, Pupăzescu, Alexandru1
Publikováno v:
Petroleum - Gas University of Ploiesti Bulletin, Technical Series. 2013, Vol. 65 Issue 4, p1-6. 6p. 12 Diagrams, 1 Chart.
Autor:
IANCU, M. B.1 mirunabaltaretu@yahoo.com, ULMANU, Vl.2 vulmanu@upg-ploiesti.ro, HADAR, A.1 anton.hadar@upb.ro
Publikováno v:
Journal of the Balkan Tribological Association. 9/15/2016, Vol. 22 Issue 3-I, p2320-2334. 15p.