National Repository of Grey Literature 7 records found  Search took 0.02 seconds. 
Active contour models in medical image segmentation
Nagy, Ivan ; Szabó, Z.
Active contour models are very suitable to image segmentation. A contour is a set of point which has an energy function. This energy function comes from both internal and external sources. This paper includes internal and external energy definition and a Matlab implementation of active contours.
Computational model of cardiac cell contraction
Šlichta, J. ; Pásek, Michal ; Brožková, K.
Předmětem příspěvku je návrh modelu kontrakce srdečních buněk. Model popisuje procesy vedoucí k interakci kontraktilních bílkovin aktinu a myozinu a je pokračováním práce jejíž cílem je sestavení celkového modelu vazby excitace-kontrakce.
The simulation of effect of membrane channel block by propafenone on electrical activity on human atrial cells
Brožková, K. ; Pásek, Michal ; Šlichta, J.
The main aim of this study is to explore the effect of propafenone on suppression of irregular excitations in human atrial cell. A program was designed that contains the computational model of electric activity on human atrial cells and the mathematical model of interaction of propafenone with INa-channels. This integrated model can served for simulations of the drug effects.
Mathematical modelling of restitution processes in cardiac cells
Pásek, Michal ; Šimurda, J.
The restitution processes in cardiac cells are difficult to analyse experimentally. An effective approach to their quantitative analysis is mathematical modelling. The quantification of the share of individual membrane channels in restitution processes is based on the evaluation of electrical charges transmitted across cellular membrane.
The experiences with computational modeling on the head with the oblique load
Ochranová, M. ; Fuis, Vladimír
The paper aim is the problem of the influence of the different type of ceramic head of the total hip joint endoprosthesis loading to its stress. The analyses of the results is prefably focused on the tensile stress in the head, which is important for the limiting states of the brittle fracture.
Artificial joint lubrication
Pražák, Josef ; Štol, Miroslav ; Musil, Jan
Basic aspects concerning development of lubricating substances for artificial joints and tribometric testing of the system artificial joint-lubricant are briefly reviewed.
Heart failure support in mathematical model with baroreflex control
Musil, Jan ; Převorovská, Světlana ; Maršík, František
The function of the mechanical support in the case of the heart failure in the consequence of the left heart ventricle hypocontractility has been simulated by the numerical model of the cardiovascular system with the baroreflex control which has been developed at the IT CAS.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.