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Dissolved and gaseous nitrogen losses in forests controlled by soil nutrient stoichiometry
Oulehle, Filip ; Chuman, T. ; Hruška, Jakub ; Krám, Pavel ; Navrátil, Tomáš ; Tesař, Miroslav ; Ač, Alexander ; Urban, Otmar
This study investigates the consequences of chronic nitrogen deposition in forests, including its effects on soil and surface water quality, and greenhouse gas emissions. To predict these effects, the authors explore the controls over dissolved and gaseous nitrogen fluxes in temperate forests. Their findings indicate that stream leaching losses of dissolved nitrogen correspond with the nutrient stoichiometry\nof the forest floor, with stream N losses increasing as ecosystems progress towards phosphorus limitation. Soil nitrogen storage increases with oxalate extractable iron and aluminium content. The authors estimate soil gaseous losses based on 15 N stocks, which averaged 2.5±2.2 kg N ha-1 year-1 , comprising 20±14% of total nitrogen deposition. They also extrapolate the current gaseous nitrogen loss flux from forests globally to be 8.9 Tg N year-1 , which represents 39% of current nitrogen deposition to forests worldwide.
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BUSINESS PLAN – Product Portfolio Expansion
Dítě, Radovan ; Hruška, Jan (referee) ; Heralecký, Tomáš (advisor)
This bachelor's thesis deals with business plan specifically extension of business portfolio. This portfolio should be enlarged by Quick Release System which allows quick assembly and dismantling propellers from UAVs. The dissertation is divided into three main parts. The first part describes the theoretical knowledge in the field of business economy and marketing. The second chapter is dedicated to description of product and analysis of the current state. The third part contains suggestion of introduction Quick Release System to the market based on theoretical knowledge and performed analysis.
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The Plumbing Systems in the Dwelling House
Hruška, Jan ; Topič, Jan (referee) ; Wierzbická, Helena (advisor)
Abstract This bachelor´s work was worked out as project documentation of piping system and sewerage system in a block of flats. The building has got 1 underground floor and 8 above – ground floors. In the underground we can find a technical room and storage rooms for residents of this building. There are flats on above-ground floors. Next part of this work are calculations dealing with this project. There is a research dealing with piping systems in high buildings too.
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Use of Slack API for HeadlessCMS
Hruška, Jozef ; Burget, Radek (referee) ; Bartík, Vladimír (advisor)
The aim of this thesis is to create a content management system with open application interface (Headless CMS) and capability of content management inside Slack application. Installation and use of system does not require any configuration by user. Open (public) and closed (hidden) application interface is built following GraphQL specification. The public interface is read-only which means it is not possible to insert or modify data through this interface. The output of this work is a fully functional prototype implemented with tools as React and Node.js with focus on user-friendly interface.
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Optimalization of the flow of material in a pressing line at Siemens Electric Machines company
Hruška, Jindřich ; Navrátil, Petr (referee) ; Kubík, Roman (advisor)
This thesis deals the optimalization flow of material in the press lines in company Siemens Electric Machines s.r.o. The thesis begins with theory of the flow of material and the Kanban method. After that thesis describe the issues which the company contend. In the next chapters the thesis The work contains general requirements for the assignment and optimization required by management and proposed possible solutions for optimizing material flow in the company. In the following chapters thesis solve the realisation of the chosen variant, for which Siemens Electric Machines to decided and the costs associated with implementation.
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Plumbing Systems for Baking Plants
Hruška, Jan ; Vrána, Jakub (referee) ; Bárta, Ladislav (advisor)
This diploma thesis deals with plumbing systems of baking plants v Modřicích. The first part looks for a solution exchange of heat and using waste energy from bakery owens. There are performed several possiblities of projects for plumbing systems. Project part was worked out in cooperation with technical company wich produces equipment for bakery factories. The solution according to relevant standards
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Prevention of Passive Browser Fingerprinting
Hruška, Jozef ; Hranický, Radek (referee) ; Polčák, Libor (advisor)
Vzhľadom na rastúci význam nástrojov na ochranu pred sledovaním sa táto diplomová práca zameriava na návrh a implementáciu rozšírenia prehliadača na ochranu používateľov pred rizikami pasívneho fingerprintingu. Rozšírenie sa snaží chrániť súkromie používateľa pozmeňovaním vybraných HTTP hlavičiek požiadaviek. Okrem toho rozšírenie upravuje súvisiace webové API, aby zabezpečilo konzistentnosť medzi upravenými HTTP hlavičkami a prostredím prehliadača, čím ďalej zvyšuje účinnosť opatrení na ochranu súkromia. Navyše, keďže rozšírenie je vyvinuté pomocou najnovšej platformy Manifest V3, ukazuje možnosti tvorby rozšírení zameraných na ochranu súkromia aj na platforme s prísnejšími usmerneniami a obmedzeniami.
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The morforegulators use at the winter wheat
HRUŠKA, Jiří
The purpose of this diploma thesis was to assess the effect of morphoregulators on yield elements and total grain yield. The experiment was carried out in 2021 and contained 5 individual variants with 3 repetitions. One of them was just for a con-trol and no application of growth regulators took place in it. In other variants, the active ingredients chlormequat chloride, mepiquat chloride, prohexadione, trinexapac ethyl and ethephon were changed. The numbers of applications were also different, with variants 2 and 5 being regulated three times and variants 3 and 4 being regulated just two times. The experiment was carried out on the farm belon-ging to Mr. Hruška in the town of Želetava, located in the Vysočina region. The results showed that regulating plant growth may not always be beneficial. In some periods, it is rather harmful. The most important compared parameter - the grain yield - was the highest in the control variant. In this case the grain yield ran-ged between 8,80 t.ha-1 and 9,94 t.ha-1. The lowest yields were achieved by the most intensively regulated variants - 2 and 5. Growth regulators also had an effect on plant numbers, numbers of shoots, grain quality parameters and, of course, on plant height, for which morphoregulators caused significant differences.
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Stanovení koncentrace pachových látek v intenzivním chovu drůbeže na hluboké podestýlce
HRUŠKA, Jiří
The production of emissions of odorous substances, which are mainly produced in the livestock breeding, is growing with the increasing intensification of agricultural production. This bachelor thesis is focused on monitoring of odor emissions arising from intensive poultry farming on deep litter Measurements were carried out in the broiler fattening hall located in the company called Farma u lesa in Sudoměřice u Bechyně. Monitored emissions were evaluated in 2019. The samples were evaluated by the dynamic olfaktometry, which is, according to the standard ČSN EN 13 725, the reference method for determing the evaluation of emissions of odorous substances from livestock breeding. The resulting odor emission values ranged from 0,02 to 0,27 OUE . ks-1 . s-1. The results were compared with the recommended emission values given in the BREF reference document and it can be claim that the odor produced from this company is in low values.
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Estimate of carbon sequestration in the Czech Republic - afforestation of arable land, change of forest management, wetlands renaturations and tree lanes
Hruška, Jakub ; Pavelka, Marian ; Chuman, Tomáš ; Oulehle, Filip ; Vindušková, O. ; Cudlín, Pavel ; Trnka, Miroslav
Report acconunted quantitetivly as well qualitativly (for the year 2050) carbon sequestration for afforestation of arable land, change of forest management, wetlands renaturations and tree lanes.
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