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Czech music journalism 1990-1993: Analysis of selected periodicals and memories of its journalists
Ungerová, Kamila ; Skalecká, Veronika (advisor) ; Cebe, Jan (referee)
The field of study of this diploma thesis is the Czech music journalism in the period of early 1990s using the examples of newly established periodicals Rock & Pop (1990), Rock Report (1991, present name Report) and Spark (1992). I have chosen this topic with regards to unsatisfactory coverage of music periodicals which has enriched the Czech media market with a totally new form with no links to the time of normalisation. Furthermore, the periodicals have brought many foreign interviews to the general public and have also deepened the knowledge of hitherto neglected music genres - metal, punk and subsequent subgenres. The era of music publicistics from year 1990 on deserves the same elaborate expert analysis as in the time of normalisation in PhDr. Martin Husák Česká hudební publicistika zaměřená na rockovou hudbu v období normalizace. Although there have been some bachelor and diploma thesis concerning exclusively the periodical Rock & Pop, they have been limited mostly to paraphrases from Vojtěch Lindaur's work or to analysis of the changes the review in music publicistics had undergone. In case of the periodical Spark, the authors have analyzed its "language" or interpreted the tendencies of Czech music publicistics. I have not found a thesis which would analyze thoroughly the three chosen music...
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The algorithm for the detection of positive and negative text
Musil, David ; Harár, Pavol (referee) ; Povoda, Lukáš (advisor)
As information and communication technology develops swiftly, amount of information produced by various sources grows as well. Sorting and obtaining knowledge from this data requires significant effort which is not ensured easily by a human, meaning machine processing is taking place. Acquiring emotion from text data is an interesting area of research and it’s going through considerable expansion while being used widely. Purpose of this thesis is to create a system for positive and negative emotion detection from text along with evaluation of its performance. System was created with Java programming language and it allows training with use of large amount of data (known as Big Data), exploiting Spark library. Thesis describes structure and handling text from database used as source of input data. Classificator model was created with use of Support Vector Machines and optimized by the n-grams method.
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Trainable image segmentation using deep neural networks
Majtán, Martin ; Burget, Radim (referee) ; Harár, Pavol (advisor)
Diploma thesis is aimed to trainable image segmentation using deep neural networks. In the paper is explained the principle of digital image processing and image segmentation. In the paper is also explained the principle of artificial neural network, model of artificial neuron, training and activation of artificial neural network. In practical part of the paper is created an algorithm of sliding window to generate sub-images from image from magnetic rezonance. Generated sub-images are used to train, test and validate of the model of neural network. In practical part of the paper si created the model of the artificial neural network, which is used to trainable image segmentation. Model of the neural network is created using the Deeplearning4j library and it is optimized to parallel training using Spark library.
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Power supply of electrostatic separator
Broďák, Kamil ; Pazdera, Ivo (referee) ; Huták, Petr (advisor)
The diploma thesis focuses on the problems of electric power precipitators. Due to their current dominant position, the work concentrates on the sources of single phase transformers operating at the frequency of 50 Hz controlled by thyristors. The first part describes the electrostatic precipitator and its principle. This is followed by a brief insight into the proposal for an electrostatic precipitator. The work also explains the high voltage source that is divided into a transformer with a rectifier and into a control box with power circuits and control circuits that provide the power supplied by a transformer. The work also offers an explanation of the HV source system that operates at different conditions. The last part suggests a proposal for cooling cabinet including thyristors, for power line control box resources, for a supply line and a line to the transformer.
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Electronic control units of present SI-engines
Michna, Lukáš ; Beran, Martin (referee) ; Dundálek, Radim (advisor)
Bachelor’s thesis named „Electronic control units of present SI-engines” treats of presently known and extended electronic control systems of SI-engines, so those ones, who mainly control both fuel-air mixture preparing and its ignition in combustion chamber. These are two fundamental functions for engine running, so they are described in light of basic principle of operation and also in light of each kind of these systems and its developmental stage description. Next point is enumeration and description of single parts of electronic control system participating in engine controlling, separated to logic sections. The end of publication makes reader acquainted with most extended types of electronic control systems, their producers and elementary differences.
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Electronic Control Unit for Engines and its Diagnostics
ČERVENKA, Petr
This paper summarizes information to be used to gain background knowledge related to the control systems of the spark-ignition combustion engines of cars and their diagnostics. The essentials part of this paper includes the explanation of the principles of each part of the systems. Next part includes explanation of the serial and parallel diagnostics including examples of diagnostics measurements. Last part this paper is engaged in the measuring technology.
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