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Model nonlinear effect in ultrasound fields
Kulík, Tomáš ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
The main topic of this diploma thesis is the modeling of nonlinear effects in ultrasonic fields. The work deals with application of finite difference method (FDTD) on the Westervelt equation and the subsequent creation of the model of ultrasonic fields in MATLAB. This thesis also includes theoretical analysis of ultra-acoustic and technical aspects of diagnostic ultrasonography. In addition, this document includes verification of theoretical assumptions by using created model.
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The dynamics of changes of leads' technical parameters during stimulation
Kulík, Tomáš ; Chmelař, Milan (referee) ; Rozman, Jiří (advisor)
The main theme of the thesis is the dynamics of changes of leads’ technical parameters during stimulation. The thesis is dealt with statistical analysis of clinical dates and investigation of time variability of chosen stimulation parameters during the time of implantation to 3 years after surgical intervention. The document consists of theoretical parts about cardiac pacing and one’s own project of statistical solution according to submission.
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Optimization of preventive maintenance
Kulík, Tomáš ; Legát, Václav (advisor) ; Aleš, Zdeněk (referee)
This diploma thesis deals with preventive maintenance problem.
The first part outlines the distinction among the different types of maintenance, basic concepts are explained and a method for reliability centered Maintenance (RCM) is described in detail.
In the next section an analysis of data obtained from actual operations is performed, and furthermore a model of preventive maintenance optimization using RCM is developed on that basis.
In the conclusion, a solution to optimize preventive maintenance is drafted allowing to prove that properly performed preventive maintenance increases emergency equipment, and it leads to higher operational efficiency.
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The dynamics of changes of leads' technical parameters during stimulation
Kulík, Tomáš ; Chmelař, Milan (referee) ; Rozman, Jiří (advisor)
The main theme of the thesis is the dynamics of changes of leads’ technical parameters during stimulation. The thesis is dealt with statistical analysis of clinical dates and investigation of time variability of chosen stimulation parameters during the time of implantation to 3 years after surgical intervention. The document consists of theoretical parts about cardiac pacing and one’s own project of statistical solution according to submission.
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Model nonlinear effect in ultrasound fields
Kulík, Tomáš ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
The main topic of this diploma thesis is the modeling of nonlinear effects in ultrasonic fields. The work deals with application of finite difference method (FDTD) on the Westervelt equation and the subsequent creation of the model of ultrasonic fields in MATLAB. This thesis also includes theoretical analysis of ultra-acoustic and technical aspects of diagnostic ultrasonography. In addition, this document includes verification of theoretical assumptions by using created model.
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