Electric conductivity and selfheating ability of hard coal

Author: A.Kotyrba

Considerations referring to coal swelling accompanying the sorption of gases and water

Author: R. Skawiński

Investigations of the coal permeability in the flow of nitrogen, methane and carbon dioxide

Authors: J. Żółcińska, L. Dyrga

The first correction to the darcy's law in view of the homogenization theory and experimental research

Authors: K. Cieślicki, A. Lasowska

Computer simulation of complex control systems in coal preparation plants

Authors: S. Cierpisz, J. Pielot

Centrifugal dast separator

Author: T. Knap

Modelling of particle size distribution of the monodispersion silica's free jet milling product

Authors: E. Mielczarek, D. Urbaniak

Proper positioning of tangential-rotary knives on robbing cutters

Author: K. Krauze

Distribution of temperature and humidity of air in a dog heading gallery ventilated by forcing duct ventilation

Authors: B. Nowak, A. Sinha

Microgravity estimation of the safety hazard for ground surface due to the unfilled old mining shafts

Authors: Z. Fajklewicz, J. Radomiński