Ara mostrant els elements 1-3 de 3
Bascompta Massanés, Marc (Data de defensa: 2016-04-25)
Mine ventilation is a crucial factor for the sake of underground operations. Not only does it affect efficiency and effectiveness rates, but it also influence the health and safety of the employees. ...
Zhang, Haoran (Data de defensa: 2015-12-21)
Gas problems have created severe difficulties for the mining industry around the world, leading to high expenditures and intensity research efforts, and determined attempts to enhance the various ...
Sidki Rius, Nor (Data de defensa: 2023-12-13)
(English) The importance of potash is inevitable to life on the planet earth as it is required by living mechanisms including plants, animals and human beings. In Europe, this vital ore is produced ...