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Surface modification by nano-droplets controlled by electron tweezers
Dao, Radek ; Šik, Ondřej (referee) ; Bábor, Petr (advisor)
This master's thesis is focused on the study of the consequences of electron beam induced motion of Au-Ge alloy nanodroplets on germanium surface. The text consists of two parts. The theoretical part gives an overview of measurement and fabrication techniques used for the experiments. The description of these techniques is mainly focused on topics needed to understand the ideas behind the experiments and their results. The topics covered here are the Atomic Force Microscopy, Scanning Electron Microscopy and Electron Beam Lithography. These are followed by an introduction to the gold-germanium material system and the movement of Au-Ge alloy nanodroplets. The practical part gives a roughly chronological guide throughout the whole experimental process, including the search for a suitable sample fabrication method, the surface modification itself and its measurement. Temperature calibration of the heating system is also mentioned.
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Hot-wire anemometer
Búran, Martin ; Jankovský, Jaroslav (referee) ; Řezníček, Michal (advisor)
The project deals with the effect of the airflow and temperature on the gold wirebond due to possible application in hot-wire anemometry. Theoretical fundamentals of wirebonding and hot-air anemometry are included in the text. From the area of anemometry, there is also a detailed description of measurement principles, areas of application and measuring instruments. The practical part of the text deals with design of the experimental sensor for hot-wire anemometry with use of the gold wirebond, including also the verification of the sensor's properties.
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Analysis of Economic Indicators Using Statistical Methods
Fürst, Lukáš ; Šroler, Jakub (referee) ; Novotná, Veronika (advisor)
This thesis inquires into history of selected investment tools and provides technical analysis of them. As the source of information, real official results of given tools are used. The goal is to analyze the data of past years in order to compare the tools using magic triangle. The thesis consists of several parts. It starts with theoretical part that describes the reasons for this questioning, as well as the methods that are used in the rest of the thesis. Then there is the practical part, where real results are processed and compared and some conclusions are made of them. The final part of the thesis is a script in Visual Basic that acts as a utility for investors. Based on his preferences and expectations, it can propose the fittest investment.
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ResPublica/Civitas Socialis - Strachotín
Sysel, Tomáš ; Magnusek, Pavel (referee) ; Nový, Vítězslav (advisor)
The theme of the development of the existing sports grounds was dealt with Based on a number of analyzes, visits to the site and communication with the community management, the theme of the development of the existing sports grounds was dealt with. The whole territory is up to a football field in a very maintained conditions. There are two smaller accommodation facilities, which are seasonally used mainly by schools in nature and other students, but their condition is quite unsatisfactory. The soccer field, which is the only one maintained, belongs to the existing base of soccer players - the dressing room with the clubhouse. Their condition is also somewhat aggravated. In the current spatial plan, the whole proposed area is at the interface of two areas, the first is the area of sport and individual recreation and the second is the area to be examined. Urban design is based on the location of the existing soccer field and the preservation or improvement of existing links to the surrounding area. Most of the paved areas will be overtaken. Part of the design of the development of sports activities in the village was also to find a possible solution for parking for tourists, for which there is no free space in the village. The chosen location is advantageous in that, when a parking lot will be created, it will be created near the main entrance to the village on road II. Cl. No. 420 from Hustopeče through the village. Architectonically, but also conceptually, the construction is based on the economic possibilities of the municipality, the possibilities of variability of the solution and especially of the possibilities of staging construction. The result are two buildings. One main, replacing the background of spccer players, creates the conditions for year-round training in the new gym, for going to fitness, while part of the building is a platform for the soccer field. The second building is an accommodation that replaces the existing unsatisfactory buildings. Architecturally, they are masses that are greatly affected by the modules. The building structure and the facilities of the sports hall are structurally designed from standardized modular systems, steel containers that are interconnected to create an unusual spectacle. The area of the gym is defined by a reinforced concrete skeleton. Both buildings are covered with gold anodized sheet metal, which is profiled similarly to the peripheral walls of the containers. At the same time, the object was to create year-round sports grounds that are accessible to the general public and youth.
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Creation of a Hedge Fund Portfolio
Synek, Jan ; Čuperová, Lenka (referee) ; Rejnuš, Oldřich (advisor)
The subject of the bachelor thesis is the creation of a stock-based qualified investors fund portfolio with a focus on gold mining companies. The theoretical part of the work is focused on the description of qualified investors funds, their legislation in the Czech Republic, characteristics of gold, description of stock investments and presentation of methods used for company analysis. In the practical part of the work, the model qualified investors fund is created and chosen companies are analysed and compared for the purpose of assembling the qualified investors fund´s portfolio. In the final part of the work, the qualified investors fund portfolio is assembled.
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Gold Market Trend Forecast
Šimek, Jan ; Zinecker, Marek (referee) ; Luňáček, Jiří (advisor)
The diploma thesis deals with econometric modelling and gold price forecast. A key factor is the multiple regression model and the ARIMA model. The first part of the diploma thesis contains a theoretical basis. The analytical part deals with modelling of gold market price and subsequent forecasting. Statistical and econometric verification using statistical methods play a very important role. The last part summarizes the results and makes suggestions for improvement.
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Vliv vybraných proměnných na trh s kryptoměnami
Doležal, Daniel
Doležal, D. The impact of selected variables on the cryptocurrency market. Diploma thesis. Brno: Mendel University, 2023. The thesis deals with the selection of individual factors and the subsequent identification of whether or not these factors have an influence on the development of the price of Bitcoin. The variables are selected based on scientific articles that deal with this issue and subsequently are subjected to regression analysis. The analysis itself focuses on the period from the last Bitcoin halving, i.e. on those variables that could have potentially influenced the development of the price of our asset in the last approximately three years. The focus is on the general influence of explanatory variables that influence the price of Bitcoin, but also on a comparison of the significance and nature of the influence of individual determinants on the second largest cryptocurrency by market capitalization, Ethereum. The results of the work are critically evaluated with scientific articles and recommendations for investors are made based on the information obtained.
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Alluvial gold placers from Klínec area - morphology and nature of gold
Fox, Simon ; Zachariáš, Jiří (advisor) ; Štědrá, Veronika (referee)
The search for economically viable gold deposits remains a significant pursuit requiring skilled expertise. The first part of the thesis establishes essential concepts related to gold ore deposits and placer gold, including its elemental properties, genesis in an orogenic environment, transportation by natural forces, and deposition in a fluvial setting. The study particularly focuses on the Klínec area in Central Bohemia and offers an insight into the geological region characterized by a Neoproterozoic basement uplifted during the late Miocene due to tectonic movements that played an integral role in the placer gold deposition. The historical context of gold mining in this Bohemian region is also presented. The practical segment of this thesis aims to establish connections between statistical and observational methods and the relationship between placer gold and its orogenic gold deposit. The methodology involves fieldwork for collecting gold particles which were then subjected to optical observation and microscopic photography. Morphological features, particularly sphericity and roundness, are analysed to identify trends indicating proximity to the primary gold source. The findings reveal that gold particles closer to the primary source exhibit sharper angularity, larger grain size, and greater...
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Genetic relationships between intrusions of porphyry dykes and formation of Au ores at Petrov and Bohuliby
Petrov, Ivan ; Zachariáš, Jiří (advisor) ; Slobodník, Marek (referee)
This master's thesis is focused on genetic relationships between Au-bearing ores and associated granodiorite porphyry dykes in Petrov and Bohuliby area in southwestern part of the Jílové ore district. Subvolcanic rocks with hydrothermally induced alteration and Au/bearing mineralization were characterized by petrography, mineralogy and crystallochemistry. Mutual genetic and textural relationships of studied materials were examined as well and were validated by biotite, arsenopyrite and chlorite empirical geothermometry. First identified generation of sulfide mineralization was formed at 360řC and consist of arsenopyrite, galenite and native gold. At circa 274řC porphyry mineral association was chloritized, and chlorite gangue crystallized. Second generation of sulfide mineralization precipitated at 264řC. Anomalous absence of Bi-Te-S phases and scheelite in hydrothermal paragenesis is important indicator of contrasting conditions of mineralization at the studied areas and main zone of the Jílové ore deposit. Based on acquired data, granodiorite porphyry dikes were categorized to two separate genetic types, which have mutual origin in deep magma chamber of Central Bohemian Plutonic Complex but intruded non-contemporaneously.
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