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Impact of conventional compensation to the volumetric accuracy of the machine tool
Žák, Zdeněk ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
This thesis solves the impact of conventional compensation to the volumetric accuracy of the CNC machine. It is therefore a practical research work, where are in the theoretical introduction mentioned requirements for machine tools, the types of errors that can occur on three-axis kinematics, compensation for the control system Siemens Sinumerik 840D sl and devices by means of which are these compensation under the work formed and subsequently verified. In this work can be seen the measured values and graphs from each measurements, a detailed analysis of the results and drawing conclusions from these results.
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Bucket elevators
Žák, Zdeněk ; Jonák, Martin (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the transport equipment using as the main transport element buckets. To specify this is a device type of elevator, conveyor, digger and excavator, including companies producing these devices. Further work is focused on theoretical and technical approach to calculate where the theoretical part of the thesis deals with the mathematical expression shape layers and logarithmic spiral and in the technical part calculations required to design and determine the parameters of devices. The last section is an overview of transported materials.
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Zhodnocení aktivit lesní pedagogiky a myslivecké osvěty na vzdělávání mládeže v Jihomoravském kraji
Žák, Zdeněk
The work examines the impact of forest activity on knowledge and attitudes of primary school pupils in South Moravia. Research was used questionnaires and interviews for comprehensive feedback from the participating pupils, primary school teachers and educators forest to ascertain the views, experiences and knowledge in the field of forestry and hunting of pupils aged 8 to 12 years. The results showed that experiential learning forest is very suitable for working with the target group in terms of increased interest in the forest, increasing the knowledge of the forest and a positive evaluation of forestry and hunting activities from all involved.
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Impact of conventional compensation to the volumetric accuracy of the machine tool
Žák, Zdeněk ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
This thesis solves the impact of conventional compensation to the volumetric accuracy of the CNC machine. It is therefore a practical research work, where are in the theoretical introduction mentioned requirements for machine tools, the types of errors that can occur on three-axis kinematics, compensation for the control system Siemens Sinumerik 840D sl and devices by means of which are these compensation under the work formed and subsequently verified. In this work can be seen the measured values and graphs from each measurements, a detailed analysis of the results and drawing conclusions from these results.
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Bucket elevators
Žák, Zdeněk ; Jonák, Martin (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the transport equipment using as the main transport element buckets. To specify this is a device type of elevator, conveyor, digger and excavator, including companies producing these devices. Further work is focused on theoretical and technical approach to calculate where the theoretical part of the thesis deals with the mathematical expression shape layers and logarithmic spiral and in the technical part calculations required to design and determine the parameters of devices. The last section is an overview of transported materials.
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Distribuce zajíce polního na Znojemsku a faktory, které ovlivňují jeho početnost
Žák, Zdeněk
This work is focused on breeding and hunting hare in two hunting grounds in the Znojmo region. To evaluate the distribution, monitoring options and the most important factors influencing the abundance hare and based on the results obtained, shall propose measures for population stability in the agricultural landscape. An overview of the number of hunted hares from 1924 to 2014 and in parallel the development of its main predator foxes from 1971 to 2014. Both hunting ground, I evaluated in terms of natural conditions and said the composition of forest trees and the standard of game. Furthermore, I have monitored the occurrence of hare, with a focus on disease leptospirosis, brucellosis and tularemia by hunted hares during 2014 in both hunting grounds. This work is also focused on the important factors limited the existence of hare in today's conditions, particularly the impact of human activities in agriculture, tourism, traffic and hunting. Based on the results, it showed that the largest share of the loss hare is today agricultural activity that consistently generates unsuitable conditions for hare especially large plots of grain cultivation and intensive chemical protection. This is also associated with a number of diseases and high mortality rates throughout the year.
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