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  • NUMERICKÉ ŘEŠENÍ, PROCESU ROZPOJOVÁNÍ, TVRDÝCH HORNIN, Karel FRYDRÝŠEK, Horst GONDEK
  • 2010
This paper is focused on a numerical analysis of the hard rock (ore) disintegration process. There is discussed the possibility of using computational modelling for the mechanical contact problem between the hard rock and a cutting bit. The bit (i.e. an excavation tool with a flat frontal side and a conical edge) moves and sinks into the hard rock and(More)
The paper addresses laboratory preparation and antibacterial activity testing of kaolinite/nanoTiO2 composite in respect of the daylight irradiation time. Kaolinite/nanoTiO2 composites with 20 and 40 wt% of TiO2 were laboratory prepared, dried at 105 °C and calcined at 600 °C. The calcination caused transformation of kaolinite to metakaolinite and(More)
This paper focuses on a numerical analysis of a hard rock (ore) disintegration process. A bit moves into the ore and subsequently disintegrates it. The disintegration (i.e. fracture of ore) is solved via a deterministic approach (FEM) and a probabilistic approach (FEM in combination with the SBRA-Simulation-Based Reliability Assessment method, i.e. Monte(More)
external fixators applied in traumatology and orthopaedics. These fixators can be applied in the treatment of open and unstable fractures or for lengthening human or animal bones etc. The new design is based on the development of Ilizarov and other techniques (i.e. shape and weight optimalization based on composite materials, application of smart materials,(More)
This paper focuses on a numerical analysis of the hard rock (ore) disintegration process. The bit moves into the ore and subsequently disintegrates it. The disintegration (i.e. fracture of the ore) is solved via probabilistic approach (FEM in combination with the Simulation-Based Reliability Assessment method-SBRA, i.e. Monte Carlo simulations, stochastic(More)
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