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Acoustic insulation of the hydraulic actuator INOVA
Kaščák, Pavol ; Skuhravý, Pavel (referee) ; Klapka, Milan (advisor)
This thesis deals with the design and testing of the acoustic enclosure for the Inova hydraulic actuator. The purpose of this enclosure is the acoustic insulation of the actuator and its parts, to achieve better acoustic conditions when performing acoustic diagnostics on this device. The first part deals with the theoretical basis of acoustic enclosures, the possibilities of modelling of acoustic problems and market research in materials usable for enclosure construction. The second part deals with the analysis of actuator noise and the localization of noise sources in the laboratory. Subsequently, the choice of material and concepts of the acoustic enclosure was made. Then, the final design solution was selected. The final design solution was subjected to acoustic simulations to predict insertion loss and determine the dimensions of the enclosure. The manufactured enclosure was tested in a semi-anechoic chamber and finally on the Inova actuator. Finally, the measurement results and simulation results are compared with each other.
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Processing of magnesium alloys using selective laser melting
Kaščák, Pavol ; Paloušek, David (referee) ; Suchý, Jan (advisor)
The processing of magnesium-based materials with Selective laser melting technology is due to its high reactivity in the initial stages of development. This bachelor thesis deals with the elucidation of impacts of individual process parameters in processing of magnesium alloys on the resulting material porosity. The aim is to develop initial experiments for the shift in the processing of magnesium alloys by additive technologies. The theoretical part contains an insight into the SLM technology and an overview of the current state of knowledge of processing of magnesium alloys by this technology. By the analysis of the theoretical part, the main volume test of this thesis has been designed. The selected material for this test was the biodegradable magnesium alloy WE43. According to the author's knowledge, no research has been published on this alloy so far. Based on the results of the experiment, the dependencies of the individual process parameters were made on the resulting relative density of the samples. At the end, the outputs were compared with the literature.
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Extending the Use of UIS Module in Mobile Devices
Kaščák, Pavol ; Hlavačka, Juraj (referee) ; Ondrák, Viktor (advisor)
This master thesis deals with the design of extending UIS module for mobile devices. First part of this thesis is dedicated to the analysis and justification to the benefit of mobile devices with focus on available mobile platforms. Subsequently, this thesis describes theoretical backgrounds upon which is based my own solution in perspective of software life cycle and SCRUM project management.
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Acoustic insulation of the hydraulic actuator INOVA
Kaščák, Pavol ; Skuhravý, Pavel (referee) ; Klapka, Milan (advisor)
This thesis deals with the design and testing of the acoustic enclosure for the Inova hydraulic actuator. The purpose of this enclosure is the acoustic insulation of the actuator and its parts, to achieve better acoustic conditions when performing acoustic diagnostics on this device. The first part deals with the theoretical basis of acoustic enclosures, the possibilities of modelling of acoustic problems and market research in materials usable for enclosure construction. The second part deals with the analysis of actuator noise and the localization of noise sources in the laboratory. Subsequently, the choice of material and concepts of the acoustic enclosure was made. Then, the final design solution was selected. The final design solution was subjected to acoustic simulations to predict insertion loss and determine the dimensions of the enclosure. The manufactured enclosure was tested in a semi-anechoic chamber and finally on the Inova actuator. Finally, the measurement results and simulation results are compared with each other.
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Processing of magnesium alloys using selective laser melting
Kaščák, Pavol ; Paloušek, David (referee) ; Suchý, Jan (advisor)
The processing of magnesium-based materials with Selective laser melting technology is due to its high reactivity in the initial stages of development. This bachelor thesis deals with the elucidation of impacts of individual process parameters in processing of magnesium alloys on the resulting material porosity. The aim is to develop initial experiments for the shift in the processing of magnesium alloys by additive technologies. The theoretical part contains an insight into the SLM technology and an overview of the current state of knowledge of processing of magnesium alloys by this technology. By the analysis of the theoretical part, the main volume test of this thesis has been designed. The selected material for this test was the biodegradable magnesium alloy WE43. According to the author's knowledge, no research has been published on this alloy so far. Based on the results of the experiment, the dependencies of the individual process parameters were made on the resulting relative density of the samples. At the end, the outputs were compared with the literature.
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Data Classification Methods
Kaščák, Pavol ; Šebek, Michal (referee) ; Bartík, Vladimír (advisor)
This bachelor's thesis deals with data classification, focusing on the implementation of naive Bayes classification method. At First, it is generally described process of data classification, its division into phases with their characteristic. It is followed by a more accurate description of the naive Bayes classification method and description of the implementation by using Java programming language and MySQL database. The last section contains a summary of the results.
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Extending the Use of UIS Module in Mobile Devices
Kaščák, Pavol ; Hlavačka, Juraj (referee) ; Ondrák, Viktor (advisor)
This master thesis deals with the design of extending UIS module for mobile devices. First part of this thesis is dedicated to the analysis and justification to the benefit of mobile devices with focus on available mobile platforms. Subsequently, this thesis describes theoretical backgrounds upon which is based my own solution in perspective of software life cycle and SCRUM project management.
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