National Repository of Grey Literature 244 records found  beginprevious219 - 228nextend  jump to record: Search took 0.02 seconds. 
Methods for the evaluation of heart rate and arterial blood pressure variability
Sedláčková, Gabriela ; Halámek, Josef (referee) ; Leinveber, Pavel (advisor)
The bachelor thesis deals with methods for description of heart rate variability and arterial blood pressure. An important mechanism for maintaining homoeostasis in the body is so called baroreflex feedback loop, which allows for a short-term regulation of blood pressure. The thesis contains description of methods which are currently used for baroreflex sensitivity evaluation. Analysis in time domain as well as in frequency domain was done using programs in Matlab environment. At the end of the thesis the influence of ventricular extrasystoles on output parameter is evaluated.
Heart Rate Variability Measurement Device
Süss, Ivo ; Číž, Radim (referee) ; Strašil, Ivo (advisor)
The aim of this thesis was to develop a device that will receive the signal from sporttester belt and then that signal will be processed. The meter is based on development kit STM32 Primer 2. To receive signals from sporttester belts uses sensor RMCM-01 Polar. The meter allows measurement of parameters of heart variability, recording on a memory card and work with the measured data from the memory card.
Heart rate measurement
Danielová, Tereza ; Veselý, Petr (referee) ; Chmelař, Milan (advisor)
Bachelor’s thesis deals with measurement of heart rate, its monitoring and evaluation which is relevant for the diagnosis of cardiac dysfunction. The first part describes the anatomy of heart and its activity. In the next part is further mention of the heart rhythm and its disorders. In the bachelor thesis is described several methods that are used in the evaluation of heart rate. The next part deals with the description of the device for scanning heart rate and description of the virtual instruments in LabVIEW.
Heart rate measurement
Jiřík, Ondřej ; Rampl, Ivan (referee) ; Chmelař, Milan (advisor)
This work deals with the measurement of heart rate parameters. One of the objectives of this work is a summary of methods for measuring heart rate, from which data can be derived heart rate and subsequently evaluated. Also deals with the accuracy of this parameter. It describes the basic characteristics of sensors and applicable in terms of sensitivity to movement. In the work is drawn design of a simple heart rate monitor with a range of 40-200 beats per minute. For the whole device is carried out by the proposal of the printed circuit board in EAGLE program.
The Sport Activity Digital Recorder
Raninec, Michal ; Žák, Jaromír (referee) ; Macháň, Ladislav (advisor)
This paper discuss the design of multifunctional device used as the digital recorder for sport activity. The general aim is to explore theory issues, construct the device and develope software for the application. Components were chosen considering low weight and power consumption and with as accurate tracking as possible.
Ultrasound fetal detector
Mackových, Marek ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
This work deals with the design of simple fetal detector, which can obtain information about fetal heart rate during pregnancy. The work includes theoretical description of Doppler systems and custom systems design detector.
Face-detection based touchless measurement of heart rate
Chmelíková, Lucie ; Potočňák, Tomáš (referee) ; Janoušek, Oto (advisor)
This thesis deals with the study of contactless and noninvasive methods for estimation of heart rate. Contactless measurement is based on capturing person faces by video camera and from sequences of pictures are estimated values of the heart rate. The theoretical part describes heart rate and methods that are being used to estimate heart rate from color changes in the face. It also contains testing of tracking algorithms. Practical part deals with user interface of program for contactless measurement of heart rate and its software solution. Thesis also contains statistical evaluation of program functionality.
Polygraphic measurement of stress
Faltýnková, Květoslava ; Kolář, Radim (referee) ; Bubník, Karel (advisor)
This work deals with polygraphic measurement of stress. The paper describes the physiological manifestations of stress induced as a result of false answers to the question and ways to measure these phenomena. It focuses mainly on changes in heart rate, blood pressure, respiration and skin resistance. It is designed to work in the block diagram of polygraph, described the course of measurement and evaluation. The work is also mention of lie detection using EEG.
Analysis of Heart Rate Variability in Frequency Domain
Vyskočilová, Martina ; Provazník, Ivo (referee) ; Kozumplík, Jiří (advisor)
This work examines heart rate variability, and a description of the mechanisms influencing changes in heart rate. There is a review of methods used to assess heart rate variability. In another part the data of the measurement are processed and described the proposed method using spectral power, generated by the algorithm description, presentation of results.
ECG monitor in LabVIEW
Pavlišta, Libor ; Kolář, Radim (referee) ; Harabiš, Vratislav (advisor)
The main purpose of this work is to get know about ECG signal, its genesis and relationship between mechanical and electrical part of the heart. Furthermore about the detailed disassembly of parts, for example of QRS complex, the determination of faulty statuses, the calculation of heartbeat frequence. We will take a look into the patient's monitors. We will get know about the measuring of ECG signal and how to treat the input signal to eliminate the undesirable components of signal, for example unwanted network noise - so-called network brum. We will study the concept of simple monitoring system with th draft of necessary filter in LabView program. We will construct alarms for some cardiac abnormalities, such as premature heart contractions. We will calculate heart rate. We will retrieve of data from an external source and we will prepare the appropriate graphical user interface.

National Repository of Grey Literature : 244 records found   beginprevious219 - 228nextend  jump to record:
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