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Interactive flexible program - Sulfur chemistry and its impact to acquiring of curriculum
Dvořák, Michal
UNIVERZITA cká fakulta KARLOVA V PRAZE, Přírodověde Katedra učitelství a didaktiky chemie CHA ce RLES UNIVERSITY IN PRAGUE, Faculty of Scien Department of Teaching and Didactic of Chemistry Interaktivní flexibilní program - Chemie síry a jeho vliv na efektivitu osvojování učiva Interactive flexible program - Sulfur chemistry and its impact to acquiring of curriculum Mgr. Michal Dvořák Souhrn disertační práce Summary of PhD. Thesis 1 Praha/Praque 2009 2 KEYWORDS Interactive flexible program; electronic materials; digital textbook; education software; effectiveness; process of acquiring curriculum; key competencies; chemistry xperiments, personal computer; technology. e INTRODUCTION We live in an era of information technology where the revolutionary way of acquiring new information is available. The new information deepen and widen acknowledge in individual branches of science. Most of the new information contradicts the validity of the existing data. Huge increase and still rising difficulty of the new information require the fundamental changes in the organization of process of acquiring curriculum. But the existing education tools specified for self-studying pupils do not reflect these...
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Manipulator Control for Acquisition of the Eye Retina
Malaník, Petr ; Dvořák, Michal (referee) ; Drahanský, Martin (advisor)
To use the image of the retina for biometric or medical purposes, it is necessary that the image is of the highest quality and ideally covers the largest possible area. It is therefore necessary to move the sensing device to the most suitable position while ensuring its stability. A laboratory handling platform is used for this purpose. The platform is moved by stepper motors. A control board equipped with a microcontroller has been developed for their control, which allows very fine movements. The theoretical accuracy of the manipulator is up to 20 nm. Since it is necessary for sensing, to have proper retina illumination, the control system also includes adjustable illumination elements in the infrared and visible spectrum. The resulting system allows scanning of the retina of the eye from multiple angles and thereby effectively increase the area on which it is possible to further look for diseases or biometric features.
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Firearm Type Identification in an Image
Čech, Ondřej ; Drahanský, Martin (referee) ; Dvořák, Michal (advisor)
Main goal of this work is to design, implement and test an approach for classifying firearms in an image into categories with short and long fireams, and then with single shot, multi-barreled, repeating and semi-automatic/automatic firearms. This problem was solved using SVM classifier together with Harris corner detector, FREAK descriptor and Bag of Words method. Accuracy of final program is up to 13,3 %.
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Deleuze's concept of time as told through art
Dvořák, Michal ; Blažková, Miloslava (advisor) ; Hogenová, Anna (referee)
This thesis is about concept of time in work of french philosopher Gilles Deleuze. First of all is nescessery to introduce reader with philosophy of Henri Bergson and Deleuze's interpretation of Bergon's work and how Deleuze uses it for demonstration of his own thoughs. After Bergson, there is finally an art, Marcel Proust and his novel In Search of Lost Time, which is subject of Deleuze's early work. Philosopher's original interpretation of proustian time is introduced in context of other intepretations of his time and also in the context in relation to philosophy of Bergson. The second half of thesis talks about modern film, which was Deleuze's interest through 1980s. This thesis doesn't try to make any brave interpretations of Deleuze's work, but does try to introduce a problém of time in his work, The concept of time is something which is not a big thing in Deleuze's philosophy, but i tis something what is there for a whole time because of Henri Bergson's influence.
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Anti-Drone Perimeter Protection
Janík, Roman ; Dvořák, Michal (referee) ; Drahanský, Martin (advisor)
Developement of drone technology brings opportunities for many fields of human activity, but simultaneously brings security threats. A need to effectively face these threats arises. In this work is described the problematics and state-of-the-art methods for object detection in a video captured by moving camera. A system for detecting and locating a drone or a flock of drones has been proposed. Algorithm for detection is based on convolutional neural network, specifically on SSD algorithm. The convolutional neural network was trained on self-made dataset. The system was implemented using OpenCV library with possible algorithm acceleration on GPU using OpenCL. Created solution was tested on video.
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Longer-term Yield Decomposition: an analysis of the Czech Government Yield Curve
Kučera, Adam ; Dvořák, Michal ; Komárek, Luboš ; Komárková, Zlatuše
The term structure of yields is an important source of information on market expectations about future macroeconomic developments and investors’ risk perceptions and preferences. This paper presents the methodology used by the Czech National Bank to obtain such information. It describes the decomposition of the Czech government bond yield curve into its components. The evolution of those components is interpreted in relation to the macro-financial environment, as embodied by selected variables. The practical use of the decomposition in estimating and interpreting the responses of the Czech government bond yield curve to macroeconomic and financial shocks is presented using a vector autoregression model.
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The comparison of the approaches towards concurrence of employment relationship and membership in the statutory body of a company in the Czech and German regulation
Dvořák, Michal ; Štefko, Martin (advisor) ; Tomšej, Jakub (referee)
(English) The presented work deals with the position of persons who are supposed to perform the function of a member of the statutory body of a legal entity in the employment relationship, as the status of these members of the statutory body has been disputed in Czech law for a very long time. Since approach to this issue in the neighboring Federal Republic of Germany is equally interesting and the professional public, including the German Federal Court of Justice, regularly expresses itself to the question of the concurrence of employment and membership in the statutory body of a business corporation at least since the middle of the last century, I have chosen a comparison of approaches in Germany and the Czech Republic to this issue as a tool for explanation of the whole issue, familiarization with the view from a different angle and also for obtaining of any inspiration for solving this legal issue in Czech law. With the help of the descriptive, analytical and comparative method I analyzed the concurrence of the functions of employees and members of statutory bodies in Czech law and the law of the Federal Republic of Germany, I also took into account the current case law of the European Court of Justice in this matter. By comparing the legal regulations of both countries, I learned that...
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Gene expression in chicken embryo: micromanipulation and visualization methods
Bendová, Michaela ; Dvořák, Michal (advisor) ; Hirsch, Ivan (referee) ; Krylov, Vladimír (referee)
The aim of this work was to obtain better insight into the principles of cell structures and organs in the chicken embryo development. To reach this goal special methods of micromanipulations and visualization in vitro, ex vivo, ex ovo and in ovo were implemented and adjusted. These methods were used to study gene expression in neural crest development and eye development. In the course of long term research in our laboratory we observed that oncoprotein v-Myb influences the development of the neural crest and has the capacity to change natural cell fate. We performed a series of experiments to investigate v-Myb protein influence on neural crest cells differentiation, especially melanocyte lineage development, and its influence on gene expression in the neural crest. Therefore we focused on Gremlin 2 (PRDC), the gene upregulated by v-Myb in the neural crest. The established procedure of electroporation in ovo was adjusted to transfect cells of the developing eye and used to study gene expression during lens induction. The results obtained from chicken embryo experiments endorsed the study performed on mouse embryos. Futhermore, the electroporation technique was slightly modified for manipulations of the neural retina in the developing eye in ovo. Thereafter, the retinas were processed ex vivo and...
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Anti-Drone Perimeter Protection
Janík, Roman ; Dvořák, Michal (referee) ; Drahanský, Martin (advisor)
Developement of drone technology brings opportunities for many fields of human activity, but simultaneously brings security threats. A need to effectively face these threats arises. In this work, problematics and state-of-the-art methods for object detection in a video captured by moving camera. Further I proposed a system for a drone or a flock of drones detection and localization. Algorithm for detection is based on convolutional neural network, specifically on SSD algorithm. I implemented the system with library OpenCV with possible acceleration of algorithm with GPU via OpenCL. I tested the created solution on both a video and a video camera output.
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