"25;31" . "Strnadel, Bohum\u00EDr" . . . "On the use of fractal analysis in description of fracture surface of wood" . "RIV/62156489:43210/01:00089984" . . "Severa, Libor" . . . "RIV/62156489:43210/01:00089984!RIV06-GA0-43210___" . . . "On the use of fractal analysis in description of fracture surface of wood" . "Acta Universitatis Agriculturae et Silviculturae Mendeliane Brunensis" . "Vyu\u017Eit\u00ED frakt\u00E1ln\u00ED anal\u00FDzy pro popis lomov\u00E9 plochy d\u0159eva"@cs . . "On the use of fractal analysis in description of fracture surface of wood"@en . . "[31CAEAED2F35]" . "CZ - \u010Cesk\u00E1 republika" . . . . "The work looks for a relationship between the fractal dimension of anatomy structure of wood and impact energy. For that purpose the slight modification of common methods for experimental evaluation of fractal dimensions was performed. Modifications was compared on macroscopic scale of wood structure with validated Richardson method from previous work and applied for determination of fractal dimensions on three main directions of wood microscopic scale level. Finally, the comparison of significance of mentioned relationship of impact energy and linear combination of those fractal dimensions was realized. The main purpose of the project origins from the assumption about existence of fractal structure on such low scale level of wood . Opposite to common way of investigation where the researches estimate relation between impact energy and fractal dimension of fracture after impact loading (as quantitative of material toughness) we propose that wood structure includes sufficient amount of informati" . "Pr\u00E1ce se sna\u017E\u00ED naj\u00EDt vztah mezi frakt\u00E1ln\u00ED dimenz\u00ED anatomick\u00E9 stavby d\u0159eva a r\u00E1zovou energi\u00ED. Na rozd\u00EDl od b\u011B\u017En\u00FDch postup\u016F , kde se stanovuje vztah mezi r\u00E1zovou energi\u00ED a frakt\u00E1ln\u00ED dimenz\u00ED po r\u00E1zov\u00E9m zat\u00ED\u017Een\u00ED,auto\u0159i t\u00E9to pr\u00E1ce p\u0159edpokl\u00E1dali, \u017Ee struktura d\u0159eva obsahuje dostate\u010Dnou informaci o hou\u017Eevnatosti i ve sv\u00E9m p\u016Fvodn\u00EDm stavu (p\u0159ed zat\u00ED\u017Een\u00EDm). Z d\u016Fvodu slo\u017Eit\u00E9ho proveden\u00ED experiment\u016F stanoven\u00ED hou\u017Eevnatosti bylo pou\u017Eito r\u00E1zov\u00E9ho zat\u00ED\u017Een\u00ED jako m\u011Brn\u00E9 hodnoty pro stanoven\u00ED pevnosti."@cs . "Vyu\u017Eit\u00ED frakt\u00E1ln\u00ED anal\u00FDzy pro popis lomov\u00E9 plochy d\u0159eva"@cs . "Buchar, Jaroslav" . "P(GA101/00/0170), P(GA106/01/0342), P(GA106/99/1703)" . "43210" . "4" . . . "The work looks for a relationship between the fractal dimension of anatomy structure of wood and impact energy. For that purpose the slight modification of common methods for experimental evaluation of fractal dimensions was performed. Modifications was compared on macroscopic scale of wood structure with validated Richardson method from previous work and applied for determination of fractal dimensions on three main directions of wood microscopic scale level. Finally, the comparison of significance of mentioned relationship of impact energy and linear combination of those fractal dimensions was realized. The main purpose of the project origins from the assumption about existence of fractal structure on such low scale level of wood . Opposite to common way of investigation where the researches estimate relation between impact energy and fractal dimension of fracture after impact loading (as quantitative of material toughness) we propose that wood structure includes sufficient amount of informati"@en . "On the use of fractal analysis in description of fracture surface of wood"@en . . "7"^^ . . "690042" . "XILX" . "fractal dimension; impact losading; wood"@en . "2"^^ . "3"^^ . . .