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Electric microdrive with ultrasonic motor
Peřina, Martin ; Feiler, Zdeněk (referee) ; Koláčný, Josef (advisor)
This thesis is focused on selected kinds of piezoengines and their ability to control and follows the separate semester project. It mainly deals with technnology called Piezo LEGS and Piezowaves. Attention is paid to their structure, principles, parameters, characteristics, but also to field of their application. Next section is laboratory measurement of those species of piezoengines (demo-kits). At the end thesis contains three laboratory task, each type of engine is dedicated toone task. The contents of the work is focused on innovation activities in the learning process.
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Electric microdrive with ultrasonic motor
Peřina, Martin ; Feiler, Zdeněk (referee) ; Koláčný, Josef (advisor)
This thesis is focused on selected kinds of piezoengines and their ability to control and follows the separate semester project. It mainly deals with technnology called Piezo LEGS and Piezowaves. Attention is paid to their structure, principles, parameters, characteristics, but also to field of their application. Next section is laboratory measurement of those species of piezoengines (demo-kits). At the end thesis contains three laboratory task, each type of engine is dedicated toone task. The contents of the work is focused on innovation activities in the learning process.
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Influence continuous and rotary pastupe on choice physical and chemical characteristics soil (with specification at the marginal area Šumava)
CODLOVÁ, Petra
At present the mountains and sub mountains areas of grazing systems divided into two basic groups on a continuous and rotational. This issue is becoming increasinhgly important, especially with shift cattle with non-market production of milk, where pasture, as mowing and grazing, in particular, is a limits factor for sustainable agriculture in these areas. At present, increasing pressure to streamline the production of nutritionally valueble forage for healty nutrition of cattle in ecological environment by minimalisation energetic and financial inputs. Important role here, among other things, taking the physical properties of soils, both from the aspects of production and in terms of species composition (eg increased incidence of lower secondary grass field of the excessive burden on pasture), influence of nutrition and quality of crop due to deterioration in porosity, volume weight, minimum gauziness etc. Degraded physical properties of soil for pasture crops directly threaten the basic elements of the environment, especiallly water quality.
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Processing grower fundamentls for herdsman area with degradation physical and chemical parameter soil (with specification at the marginal area Šumava)
LENCOVÁ, Daniela
Permanent grass overgrowth holds a great importance in the Czech Republic's agriculture. It's functions in the landscape are mostly anti-erosive and landscape-creating. In comparison to other European countries, the ploughed area in the Czech Republic is larger. Therefore it is possible to expect an increase in the overall dimension of the ploughed area, which brings a necessity of land management. An insufficient level of used pratotechnical actions can cause a shift in the effects of grazing on the environment - from the positive to the negative. An excessive straining of herbage linked to the absence of needed interventions leads to a degradation of physical and chemical attributes of the soil. The problem that appears the most is treading out the grass sod, compacting the soil and beginning of the erosive processes. Overlooking this serious frame leads to total devaluation of the land. Therefore adopting and consistent keeping of comprehensive collection of pratotechnical actions, that lead to gradual make up and elimination of the negative effects of the grazing on the land, is vital. This thesis deals with processing the collection of pratotechnical actions, on the basis of realized links between the type of grazing system and evaluated physical and chemical parameters of soils, in two-model areas {--} grazing area Ostřice and grazing area Jenín-Babín.
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