"A Qualitative Dynamic Model of an Autogenously Mill"@en . . "RIV/00216305:26110/02:PU34057" . "[3ACA72634B6C]" . "2002-08-25+02:00"^^ . . . "80-86059-33-2" . . . . . "\u010Cesk\u00E1 spole\u010Dnost chemick\u00E9ho in\u017Een\u00FDrstv\u00ED" . . . "Dohnal, Mirko" . . . "RIV/00216305:26110/02:PU34057!RIV11-MSM-26110___" . "CHISA 2002" . "Autogenously or semi-autogenously grinding is difficult to characterize by conven-tional modelling methods, because performance is dependent upon the quality and quantity of the rocks in the feed. These normally vary continuously and a detailed modelling exercise will only describe a limited range of conditions. This type of grinding is therefore an ideal application of qualitative modelling. Real valued variables are replaced with qualitative variables which can adopt only three values +, 0 and -. Dynamic behaviours are described in terms of changes in the qualitative values of state variables and their first and second derivatives. There are two types of milling knowledge, equation based and equation less knowledge items. Conventional quantitative models (usually sets of differential equations) can be degraded to these values are related by means of qualitative differential equations. Commonsense heuristics, experience, observations, qualitatively degraded on-line measurements are used to create equ"@en . . "Autogenously or semi-autogenously grinding is difficult to characterize by conven-tional modelling methods, because performance is dependent upon the quality and quantity of the rocks in the feed. These normally vary continuously and a detailed modelling exercise will only describe a limited range of conditions. This type of grinding is therefore an ideal application of qualitative modelling. Real valued variables are replaced with qualitative variables which can adopt only three values +, 0 and -. Dynamic behaviours are described in terms of changes in the qualitative values of state variables and their first and second derivatives. There are two types of milling knowledge, equation based and equation less knowledge items. Conventional quantitative models (usually sets of differential equations) can be degraded to these values are related by means of qualitative differential equations. Commonsense heuristics, experience, observations, qualitatively degraded on-line measurements are used to create equ" . . "Praha" . . "Praha" . "A Qualitative Dynamic Model of an Autogenously Mill" . "637172" . . . . . "A Qualitative Dynamic Model of an Autogenously Mill" . "4"^^ . "A Qualitative Dynamic Model of an Autogenously Mill"@en . "Dohnalov\u00E1, Jaroslava" . "Krej\u010D\u00ED, Ale\u0161" . "4"^^ . "Rada, V\u00E1clav" . "26110" . . "V, Z(MSM 261100009)" . "19"^^ . . "Qualitative Model, Dynamic Model, Autogenously Mill"@en .