"2010-01-01+01:00"^^ . "1"^^ . . "0"^^ . . "2011-12-31+01:00"^^ . "1"^^ . "acoustic emission; dislocation; plastic deformation; metals; alloys; composites; multifractal analysis; dynamic systems"@en . . "1"^^ . "121"^^ . . "C\u00EDlem projektu je studium z\u00E1konitost\u00ED nespojitosti plastick\u00E9 deformace krystalick\u00FDch l\u00E1tek, pro kterou je charakteristick\u00E1 samoorganizace dislokac\u00ED a dal\u0161\u00EDch krystalov\u00FDch poruch. Jak bylo ned\u00E1vno uk\u00E1z\u00E1no, bez\u0161k\u00E1lov\u00FD, korelovan\u00FD a lavinovit\u00FD kolektivn\u00ED pohyb disloka\u010Dn\u00EDch soubor\u016F se projevuje v \u0161irok\u00E9m intervalu \u010Dasov\u00FDch m\u011B\u0159\u00EDtek, od milisekund k sekund\u00E1m. Tento v\u00FDsledek poukazuje na nutnost dostate\u010Dn\u00E9ho \u010Dasov\u00E9ho rozli\u0161en\u00ED pro m\u011B\u0159en\u00ED parametr\u016F plastick\u00E9 deformace, nap\u0159. vyu\u017Eit\u00EDm metody m\u011B\u0159en\u00ED akustick\u00E9 emise (AE). \u010Casov\u00E1 m\u011B\u0159\u00EDtka pod 1 ms nebyla zat\u00EDm prozkoum\u00E1na, a\u010Dkoli ned\u00E1vn\u00E9 experiment\u00E1ln\u00ED pr\u00E1ce uk\u00E1zaly, \u017Ee takov\u00E1 \u010Dasov\u00E1 m\u011B\u0159\u00EDtka jsou obvykle spojena s \u201Eelement\u00E1rn\u00EDmi\u201C ud\u00E1lostmi AE. Na z\u00E1klad\u011B t\u011Bchto prac\u00ED lze \u0159\u00EDci, \u017Ee \u010Dasov\u00E1 struktura t\u011Bchto \u201Eelement\u00E1rn\u00EDch\u201C ud\u00E1lost\u00ED odr\u00E1\u017E\u00ED aktivitu r\u016Fzn\u00FDch deforma\u010Dn\u00EDch proces\u016F a charakterizuje korelaci mezi poruchami. Hlavn\u00EDmi c\u00EDly tohoto projektu jsou komplexn\u00ED v\u00FDzkum vnit\u0159n\u00ED struktury ud\u00E1lost\u00ED AE pro r\u016Fzn\u00E9 materi\u00E1ly a r\u016Fzn\u00E9 mechanizmy plastick\u00E9 deformace, d\u00E1le studi"@cs . . . "The goal of the project is to investigate the intrinsic intermittent character of plastic flow of crystalline solids, which reflects self-organization of dislocations and other crystal defects. As proven recently, a scale-free, correlated avalanche-like collective motion of dislocation ensembles manifests itself in a wide range of time scales, from milliseconds to seconds, provided that sufficient resolution is warranted for the measurement of the parameters of plastic flow, for example, by using acoustic emission techniques. The time scale below 1 ms remained unexplored so far, although experimental evidence was found quite recently that such interpretation also concerns this scale, traditionally related to \u201Celementary\u201D AE events. It can be suggested that the temporal structures associated with such \u201Celementary\u201D events can serve as signatures of different deformation processes and characterize correlations between defects. Thus, the main objective of the project is a comprehensive investigation of t"@en . . . . "Multiscale investigation of the intermittence of plastic deformation using acoustic emission."@en . . "Multi\u0161k\u00E1lov\u00E9 studium nespojitosti plastick\u00E9 deformace metodou akustick\u00E9 emise."@cs . . "0"^^ . "121"^^ . .