Zobrazeno 1 - 4
of 4
pro vyhledávání: '"YU Yuesen"'
Publikováno v:
Meikuang Anquan, Vol 52, Iss 11, Pp 139-146 (2021)
Compared with the ordinary electric drive system, there is a wide range of explosive environment formed by flammable mixtures in modern industrial production such as coal mines and petrochemicals. The existence of potential ignition sources (electric
Externí odkaz:
https://doaj.org/article/b1f1467a725c419aae632b6c204f8cf9
Publikováno v:
Open Physics, Vol 15, Iss 1, Pp 27-34 (2017)
In this paper, a numerical model is developed by combining thermodynamics with heat transfer theory. Taking inner and external multi-irreversibility into account, it is with a complementary equation for heat circulation in air gaps of a steady coolin
Externí odkaz:
https://doaj.org/article/ffbdf8ab18694b6095f3716217b56f27
Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 2, Pp 25-28 (2015)
In order to reduce influence of peak voltage of motor terminal pulse on the ground insulation of motor and ensure safe and stable operation of frequency-conversion winch, a peak voltage absorption device of frequency-conversion speed-regulation for w
Externí odkaz:
https://doaj.org/article/3a03125a24b843489ffaf90e82192510
Publikováno v:
Procedia Earth and Planetary Science. 1(1):1549-1553
Based on the investigation and analysis of the situation in full mechanized coal mining face at home and abroad, the electro-hydraulic control system for hydraulic support is put forward, designed and realized. It adopted intrinsically safe circuit d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b82d69c0c1f65af85c3406bd783595f