National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Určování mechanických vlastností věnčitých tepen
Beneš, J. ; Horný, L. ; Konvičková, S. ; Chlup, Hynek
Samples of human coronary arteries underwent inflation tests to obtain parameters which characterize its mechanical behavior. A pressure-diameter relationship was determined. Strain energy density function was used to model constitutive behavior. Its numerical characterization was found by regression analysis of experimental data.
Zkušenosti s tahovými zkouškami vrstev tepenné stěny
Horný, L. ; Chlup, Hynek ; Sedláček, R. ; Konvičková, S.
Uni-axial tensile tests were performed with layers of aortic wall. Specimens underwent loading in both longitudinal and circumferential directions. Experimental data were used in regression analysis which offered base for constitutive relationships. Uni-axial stress-strain relations for aortic media and adventitia were found.
Fyzikální model systémového odporu krevního řečiště člověka
Chlup, Hynek ; Konvičková, S.
The element simulating the body tissue resistance changes represents the dominant part in the cardiovascular modeling circuit set-ups. The element simulating the distal resistance of system circuit of the bloodstream systemic resistance was created. The total resistance of this apparatus is possible to change with connecting proper number of resistance segments, in dependence of experiments. The element is made up of multiple embranchment flow liquids and resistance segments. The flow cross-section will be extended fivefold from input to output by full opening of SO.
Experimentální linky pro samobuzené kmitání elastických trubic
Chlup, Hynek ; Maršík, František ; Konvičková, S.
Aim task is to solve the blood flow through the elastic tubes analytically, numerically and experimentally and to analyze the context of the mechanical properties of the blood (viscosity) and of the vessel wall (elastic modules) with their instability (Korotkoff’s sounds), all with the proper intention to biomechanics of the cardio-vascular system.

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