National Repository of Grey Literature 66 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Mikroprocesorová technika ve výuce biomedicínských oborů
Sekora, Jiří ; Králík, Martin
Mikroprocesorová technika v současné době zasahuje snad do všech oblastí zdravotnické techniky, ať už se jedná o různé podpůrné či autonomní systémy, detektory, dataloggery či součásti diagnostických a terapeutických přístrojů, a právě proto má i své místo ve výuce napříč všemi studijními programy vyučovanými v biomedicínských oborech.
Úvodní slovo ke sborníku konference Trendy v biomedicínském inženýrství 2023
Kolářová, Jana ; Mézl, Martin ; Němcová, Andrea ; Králík, Martin ; Chmelík, Jiří ; Jakubíček, Roman ; Sekora, Jiří
Ve dnech 11.–13. září 2023 proběhl 15. ročník konference Trendy v biomedicínském inženýrství (TBMI). Hlavním pořadatelem konference byla Česká společnost biomedicínského inženýrství a lékařské informatiky (ČSBMILI). Lokálním pořadatelem konference byl Ústav biomedicínského inženýrství (ÚBMI) Fakulty elektrotechniky a komunikačních technologií Vysokého učení technického v Brně (FEKT VUT). Konference se konala v hotelu Atlantis v blízkosti Brněnské přehrady. Přijelo celkem 79 účastníků, kteří prezentovali 45 příspěvků. Tento příspěvek zastřešuje celý sborník a shrnuje zásadní informace o 15. ročníku TBMI.  
Sleep apnea detection from ECG records
Trnková, Simona ; Smital, Lukáš (referee) ; Králík, Martin (advisor)
The aim of this work is to propose an algorithm for the detection of sleep apnea from the respiratory signal that was extracted from the ECG signal. The work includes the theory of sleep medicine, methods for extracting the respiratory curve from the ECG signal and methods for detecting apnoeic sections. In the practical part, the algorithm for estimating the breathing curve and models classifying apnoeic sections are described and evaluated.
Breathing Rate Estimation from the Photoplethysmogram
Petrík, Jakub ; Králík, Martin (referee) ; Kozumplík, Jiří (advisor)
The main topic of this bachelor thesis are methods for breathing rate estimations from photopletysmographic signals. In the theoretical part of the thesis we find a biref review of methods that are used for breathing rate estimation. These methods are than tested and their performance is evaluated on two pubilc databases BIDMC and CapnoBase. These databases also contain reference values of respiratory rate.
Registration of ion and electron images from DualBeam microscope
Oreničová, Jaroslava ; Harabiš, Vratislav (referee) ; Králík, Martin (advisor)
V posledných rokoch sa v zobrazovaní materiálov a biologických vzoriek rožšírila elektrónová mikroskopia. Táto práca sa zaoberá vzájomnou registráciou obrazu v tzv. DualBeam elektrónovom mikroskope. Hlavným cieľom tejto práce je nájsť vhodný algoritmus pre registráciu elektrónového a iontového obrazu porovnaním rôznych algoritmov. Ide o detektory a deskriptory SIFT, SURF a AKAZE, vytvorené v programovacom jazyku Python za použitia knižnice OpenCV. Sú testované pri rôznych podmienkach snímania obrazu nebiologických, zväša kovových materiálov ale aj biologických vzoriek a to pri rôznej rotácii, natočení a použitými vzorkami. Vstupné parametre týchto algoritmov sú vzájomné porovnávané k dosiahnutiu optimálnych vstupných nastavení pre jednotlivé skupiny testovaných dát. Každý z detektorov je špecifický pri použitý na rôzne druhy vzoriek. Je tak potrebné zvoliť kompromis pri aplikácii jednotlivých detektorov a dekriptorov vzhľadom na aplikáciu a zvolený typ vzoriek. Na základe testovania je využitie jednotlivých detektorov a deskriptorov nasledujúce: SURF pri kovových vzorkách vo vzájomnom uhle 0° pri zobrazovaní pomocou elektrónového a iontového zväzku a pri párovaní biologických vzoriek. AKAZE funguje najlepšie pri párovaní vzájomne naklonených kovových vzoriek. Pri párovaní obrazov zobrazovaných jedným zväzkom funguje najlepšie SIFT.
Detection of interictal activity in long-term stereo-EEG recordings
Šikyňová, Soňa ; Králík, Martin (referee) ; Smital, Lukáš (advisor)
In patients with pharmacoresistant focal epilepsy, complete prevention of the clinical manifestation of epilepsy is achievable through surgical removal of the epileptic zone. Accurate localization of the epileptic zone relies on the detection of interictal epileptic discharges, which serve as an essential tool. However, the effectiveness of automated interictal epileptic discharge detectors may be influenced by the patient's state of vigilance. This study demonstrates a statistically significant difference in performance between different detectors during different sleep phases. The precise temporal and spatial distribution of interictal activity holds paramount importance for identifying the epileptic zone. Inaccurate determination of the epileptic zone and unsuccessful resection can occur if the sensitivity and accuracy of detectors vary across sleep stages. Consequently, it is crucial to consider the patient's consciousness status when pinpointing the epileptic zone. One approach to address these variations in detector performance at different states of vigilance is to optimize the parameters of detection algorithms. This study includes an investigation into the optimized parameters for two interictal epileptic discharge detectors.
Device for simultaneous acquisition of PCG and PPG signals
Matoušek, Denis ; Králík, Martin (referee) ; Mézl, Martin (advisor)
This bachelor's thesis deals with the design and implementation of equipment for phonocardiographic and photoplethysmographic measurements. The theoretical part discusses the description of the origin of heart sounds, the place and method of measurement in the framework of phonocardiography. The practical part describes several options for building individual devices with the help of a Raspberry Pi 4 or with the help of measuring technology and a non-soldering field. Subsequently, the best solutions for PPG and PCG data acquisition are selected. 10 volunteers were measured on the final device. The scanned data is processed in the Python environment. Individual measurement results are described, documented, compared, and evaluated against other measurements.
Respiration rate estimation using PPG signal
Machalová, Marie ; Kozumplík, Jiří (referee) ; Králík, Martin (advisor)
The thesis deals with the estimation of breathing rate from the PPG signal. The first part is theoretical, it deals with the anatomy and physiology of the circulatory and respiratory systems. It also focuses on methods of monitoring these systems. Describes the PPG signal, its acquisition methods and methods for estimating the breathing rate. In next section, there is an introduction to the MESA database, which provides the measured PPG signals. The practical part describes the application of the used methods, their results and validation of the BIDMC database.The method with the smallest average deviation is the drift-based extraction method, with a deviation of 0.57 breaths per minute.
Cross-cultural perception of sexual dimorphism in human face
Fiala, Vojtěch ; Kleisner, Karel (advisor) ; Králík, Miroslav (referee) ; Lobmaier, Janek Simon (referee)
Evolutionary psychology supposes that human behaviour consists of adaptive tools, functional and mutually intertwined, that help an individual to survive and reproduce. Human proneness to ascribe psychological characteristics, based on an individual's facial features, may present such an adaptive tool. Facial sex-typicality, the individual representation of facial features regarding a given sex (male/female), affects other ascribed characteristics. Potential functional associations between sexually dimorphic facial structure, perceived sex-typicality, and physiological and behavioural correlates are the very topic of this thesis. Following theoretical background, there are three studies listed as 'Published studies' (Study 1-3). Study 4, the submitted manuscript, has not been peer-reviewed yet. Study 5, already published, is listed as 'Appendix'. Study 1 (Fiala et al., 2021) compares the effects of perceived 'sex-typicality' and measured sexual shape dimorphism on ratings of attractiveness across five distant countries. Rating participants and stimuli faces were always from the same country. Whilst perceived female femininity is preferred across cultures, analysis of preference of perceived male masculinity and both-sex measured sex-typicality reveals cross-cultural discrepancies. Study 2 (Fiala et...
Control and regulation of the temperature of the drug transport box
Maťašová, Daniela ; Králík, Martin (referee) ; Sekora, Jiří (advisor)
This bachelor thesis deals with the solution of drug transport in a transport box over longer distances. The work also deals with sensors for temperature measurement and methods of its control and regulation. The essence is the design, implementation and verification of the functionality of the transport device, which allows the display of continuous information about the state of the temperature inside the transport box. Temperature control is powered from the car’s on-board network and temperature sensing is powered independently. The transport device allows the setting of the limit temperature up to 35 °C, while exceeding it is indicated by an acoustic and visual alarm. The transport box, which is the result of the work, allows the transport of drugs, and ultimately meets all the requirements of the assignment.

National Repository of Grey Literature : 66 records found   1 - 10nextend  jump to record:
See also: similar author names
3 Králik, Michal
2 Králik, Miroslav
2 Králík, Marek
13 Králík, Martin
1 Králík, Michael
3 Králík, Michal
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