Maracineanu G. A., Tipei Gh., Tiugan M. V. G.
Flotatia cu adaos de reactiv colector nepolar in masini columnare aplicata pe minereul cuprifer de la Moldova Noua - The Flotation with Non-Polar Collective Reactive Addition in Columnar Machines Applied on The Copper Bearing from Moldova Noua
Marinescu M., Bogatu L., Matei M., Popescu A.
Resursele minerale la nivel mondial (I) - Global Mineral Resources (I)
Some resources appear naturally, as a result of some processes and natural evolution, without involving the human intervention. Obviously, these resources (air, water, soil, mineral substances, plants, animals, landscapes, solar energy etc.) are named natural resources, unlike those artificial or anthropic (waste, work, qualification, information, capital, technology etc.) that directly result from human activity.
Cioclea D., Toth I., Jurca L.
Aspecte tehnice legate de aplicarea metodei de exploatare cu subminare la stratele groase de inclinare mare sub o zona exploatata clasic - Technical Aspects on Undermining Method Applied at Thick Beds with High Inclination Under an Area Classic Mined
Coal bed undermining has been performed within an area where there were performed classic mining operations, for example horizontal slicing with long pillars. This paper shows the problems appeared when the undermined coal bed was under an area previously mined by classic methods and the direction of the scarp line of the classic stope displays an angle with the face line of the undermining stope area.
Buldur C. C.
Echipament performant in combaterea pulberilor filtrul - tip GF03 (III) - A High Performance Equipment for Powder Control GF 03 type Filter (III)
The GF 03 industrial dust filters there are the newest achievement from the industrial dedusting, that through its new and technical progress in comparison to the known level, it is a technical economic ascendant confronted by other types of dedusting filters.