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Influence of All-dielectric self-supporting cable on the mechanics of middle voltage overhead line
Nedoma, Jakub ; Čáslava, Jiří (referee) ; Ptáček, Michal (advisor)
This thesis is focused on assessing the impact of retrofitting dielectric All Dielectric Self-Supporting Cable (ADSS) to existing MV overhead line. This type of optical cable is a means of future strengthening of the communication infrastructure of the distribution network. However, its mechanical properties are significantly different from the properties ACSR cable, due to which its installation can be problematic in terms of meeting the requirements of the PNE 33 3301 standard. In practical part, this work deals with the design of the ADSS installation on the existing MV line and the determination of its impact based on the assessment of the results of this design.
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Cellular processes in twining plants and tendrils
Šimečková, Jana ; Krtková, Jana (advisor) ; Skokan, Roman (referee)
This work focuses on the twining of stems and tendrils of vines and the underlying cellular processes involved. Vines, comprising a diverse group, require support for their growth and are known as "climbers." Successful coiling depends on the contact between the plant and the support, this contact is facilitated by movements such as skototropism and circumnutation. Once in contact with the support, coiling occurs. Specialized G-fiber cells appear to play a crucial role in the coiling process. Additionally, microtubules and cellulose microfibrils are extensively studied in the context of helical growth. Although the complete picture of cellular signaling during coiling remains elusive, numerous chemical substances influencing coiling have been identified, including jasmonates and other plant hormones. Many significant plants fall into the category of climbing plants, yet much remains unknown about their coiling mechanisms.
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Influence of All-dielectric self-supporting cable on the mechanics of middle voltage overhead line
Nedoma, Jakub ; Čáslava, Jiří (referee) ; Ptáček, Michal (advisor)
This thesis is focused on assessing the impact of retrofitting dielectric All Dielectric Self-Supporting Cable (ADSS) to existing MV overhead line. This type of optical cable is a means of future strengthening of the communication infrastructure of the distribution network. However, its mechanical properties are significantly different from the properties ACSR cable, due to which its installation can be problematic in terms of meeting the requirements of the PNE 33 3301 standard. In practical part, this work deals with the design of the ADSS installation on the existing MV line and the determination of its impact based on the assessment of the results of this design.
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Stroje pro sklizeň píce: příprava výukových materiálů
ZUKAL, Martin
This bacalar thesis provides an overview of forage harvesting machines. The thesis is divided into chapters according to individual types of machines and provides a view of their agrotechnical requirements, partition, description of basic carried out operations and description of their basic work. The bacalar thesis should serve as supplementary teaching text for students of the Department of Agricultural, transport and handling Technology of the Faculty of agriculture of South Bohemian University. Information and parameters are found in the technical literature on agricultural machinery, promotional materials and websites of manufacturers and vendors of this technique.
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