The investigation of thermal diffusivity for myocardium in conditions of bypass circulation
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2018, Vol 81, Issue 1
Abstract
The method for determining the thermal diffusivity of the myocardium in the process of hypothermia and cardiac hyperthermia is based on noninvasive temperature control, which makes it possible to determine in each part of the myocardium the inhomogeneity of the temperature distribution under conditions of bypass circulation is proposed. The values of the minima and maxima of the temperature field on the surface of the myocardium, which determine the extreme temperature difference on the surface of the myocardium to evaluate the inhomogeneity of the temperature distribution on the heart surface, are calculated. The analysis of the distribution of the temperature field on the heart surface and in the depth of the myocardial layer, which shows significant changes in the value of the thermal diffusivity of the myocardium under conditions of cooling and warming of the heart, is performed. The article provides the data on the thermal diffusivity of the myocardium have been obtained, which provide additional information on the nature of the processes and phenomena in the heart tissues that occur when it is cooled and heated.
Authors and Affiliations
V. V. Shlykov
Keywords
Related Articles
- EP ID EP305699
- DOI -
- Views 87
- Downloads 0
The shortwave digital broadband radio communication device
For the narrowband analog signals transmission via the radio channels in areas with difficult terrain the short-wave range is widely used. The majority of radio stations use frequency modulation of the transmitter, witho...
On the task of building the routes of passenger buses of two automobile companies
The article formulates a mathematical model search of n bus routes between the two points, which carry out cruises corresponding to the specified schedule, and with specified duration. The duration of each route consists...
Compensation of errors and adjusting the position of the gun relative to the target with the compatible rapid movement of the tower and the machine
Instrumentation complexes of weapon stabilizers are used for modernization of the existing and light armored combat vehicles BTR, BMP, BMD and other modifications. They are designed for stabilized guidance and escort in...
Operational efficiency of the lighting system of bus salons
In recent years the problem of safety of people is studied primarily in aspects of natural and man-made disasters, fire, health and safety in the workplace. A problem connected with the way of life of the people, in part...
Peculiar features of modeling of thermal processes of the cutting area in the SOLIDWORKS SIMULATION system
Management of thermo-physical process of cutting zone by changing certain parameters of the cutting regime, tool geometry or coolant using allows to achieve a higher level of handling performance. The forecasting of ther...