Different organo-montmorillonites (OMMTs) are preparedby modifying montmorillonites (MMTs) with CTAB, PA1010 salts/CTAB, PEG/CTAB, PVA/CTAB, PVP, PVP/CTAB and P
Percussive-rotary drilling technology was considered many years ago as one of the best approaches for hard rock drilling. It is a key for popularizing this tech
Sensory data are, due to the lack of an absolute reference, imprecise and uncertain data. Fuzzy logic can handle uncertainty and can be used in approximate reas