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Spin wave spectroscopy in ferromagnet-superconductor hybrid structures
Pribytova, Ekaterina ; Davídková, Kristýna (referee) ; Urbánek, Michal (advisor)
Spin wave spectroscopy has emerged as a promising path in the study of ferromagnet-superconductor hybrid structures. These structures exhibit a wide range of spin wave frequencies, spanning from the GHz to the THz regime, making them potential candidates for efficient information transfer without the translational motion of electrons and associated Joule heating. This characteristic positions them as promising candidates for the realization of novel and highly efficient computational concepts. While previous magnonic experiments have predominantly been conducted at room temperature, the growing interest in hybrid systems for quantum computing necessitates the operation of magnonic devices at low temperatures and within the framework of superconducting circuits. The aim of this bachelor's thesis is to explore the possibilities of information transfer using spin waves in ferromagnet-superconductor systems.
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Computer simulation model concept of an automated sorting system
Dvořák, Patrik ; Kašpárek, Jaroslav (referee) ; Urbánek, Michal (advisor)
In response to the growing demand for fast sorting of items, this bachelor thesis focuses on automated sorting systems. It describes the whole system in detail, from the basic principle, to the partitioning, the technologies and sensors used, to the advantages and diverse applications. It includes current trends for small volume shipments in this area. The thesis presents the concept and layout used to create the simulation model in Tecnomatix Plant Simulation software from Siemens. A matrix of experiments was created for the simulation model. Subsequently, simulation experiments were performed to find an optimization solution. Finally, verification and validation was performed where the simulation model was compared with the analytical calculation result.
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Application of Management Control System in a Business
Smékalová, Michaela ; Urbánek, Michal (referee) ; Žižlavský, Ondřej (advisor)
This thesis focuses on a detailed analysis of controlling within XYZ company, with special emphasis on the Procure to Pay process and subsequent cost analysis. The work is systematically divided into four main parts. The first part describes the theoretical knowledge necessary for the subsequent sections. The second part is devoted to describing the company, and the third part deals with the analysis of the current state of controlling, particularly the state of the Procure to Pay process in XYZ company. The final proposal part builds on the previous sections, suggesting measures and adjustments related to the Procure to Pay process and associated costs.
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Analysis of material flow in the loading system production using computer simulation
Loprais, Pavel ; Kašpárek, Jaroslav (referee) ; Urbánek, Michal (advisor)
Bachelor thesis focuses on the elaboration of a literary review of computer software used for modelling and simulating material flow in manufacturing. According to the proposed layout concept, a computer simulation model of loading circuits will be created, including the configuration of basic operational parameters using the Plant Simulation program. The work involves a detailed description of information flows in the loading line, including the implementation of proposed systems into the computer model. An analysis will be conducted to assess the impact of simulation model parameters on the discussed characteristics of material and information flows.
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Analysis of material flow in a logistics center with external production entities using computer simulation
Tůma, Dominik ; Krejčí, Miroslav (referee) ; Urbánek, Michal (advisor)
Warehousing companies often reach a point where they need to examine and improve their internal material flow setup. This is often overlooked and not given as much attention. For this reason, the bachelor thesis, in cooperation with JITRANS Logistik, deals with the problem solving in the most problematic warehouse in Dačice. The aim was to evaluate historical data - to determine the warehouse utilization during individual shifts, and to improve the throughput of the current warehouse by proposing two optimization options, using simulation models. The Tecnomatix Plant Simulation software designed by Siemens was used to create the simulation models. The simulation models were compared with each other using simulation experiments. Subsequently, the data obtained from the simulation experiments were evaluated and recommendations for optimizing the material flow were proposed. These suggestions will be submitted to JITRANS Logistik.
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Analysis of material flow in a production line using computer simulation
Karas, Lukáš ; Kašpárek, Jaroslav (referee) ; Urbánek, Michal (advisor)
This bachelor ‘s thesis deals with the creation of a material flow analysis of the production system. The first part of the thesis is focused on the literature search of logistics and computer simulation software. The second part deals with the creation of the layout of the production system and the creation of a simulation model. Simulations are performed using the Technomatix Plant Simulation software developed by Siemens company. In the third part, an analysis of the results of the matrix of simulation experiments is carried out. At the end of the work, an evaluation of the results of the performed analyzes is carried out.
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Application of modern technologies for recording devices in international road freight transport
Konečný, Juraj ; Zeizinger, Lukáš (referee) ; Urbánek, Michal (advisor)
The bachelor’s thesis summarizes an overview of the legislation affecting the use of recording devices in international road transport. It clearly describes the history of tachographs up to the newest second generation SMART tachographs. The thesis also includes a comparison of European legislation with legislation around the world. Furthermore the thesis is dedicated to basic and advanced functions as well as data transfer from recording equipment. Based on the parameters of the tachographs, their contribution in logistics is critically evaluated, as well as a comparison of the different types of the latest tachographs currently available on the market.
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Design of technology for gear manufacturing
Urbánek, Michal ; Píška, Miroslav (referee) ; Sliwková, Petra (advisor)
The master’s thesis is focused on the design of production technology and the choice of machines and tools to achieve the required accuracy according to the drawing documentation. During the design of production options, the advantages and disadvantages of gear machining variants were described. In the theoretical part, the technologies of the proposed operations were described, such as turning, milling of gears in a rolling method, shaving and grinding. In the practical part, the production itself is described in all sixteen operations that were needed to produce the part. Instructions and tables of measured dimensions were created for each machine operation. The economic evaluation summarizes material costs, machine and preparation times depending on the size of the production batch.
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Design of material handling between the planned interimwarehouse and welding shops using dynamic simulation
Vícha, Ondřej ; Urbánek, Michal (referee) ; Hloska, Jiří (advisor)
This master thesis deals with optimizing material and information flow between the production plants and warehouses during the reconstruction of the manufacturing plant of Schäfer in Hranice na Moravě. At first, a theoretical introduction to the issues of inter-company transport services is presented. This introduction is followed by an analysis of the current state of material and information flow at the manufacturing plant. The practical part of the thesis consists of a simulation model made in the Tecnomatix plant simulation program. This simulation model includes the plant's current and future states and a layout of future material flow between the welding shops and warehouses. It also contains a conceptual design of the material flow. The optimization is conducted using a matrix of experiments, which are subsequently evaluated. In the end, the most optimal solution for material and information flow is developed and suggested.
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Spin wave excitation and propagation in magnonic crystals prepared by focused ion beam direct writing
Křižáková, Viola ; Olejník,, Kamil (referee) ; Urbánek, Michal (advisor)
Paramagnetické niklem stabilizované tenké vrstvy plošně centrovaného kubického Fe, epitaxně narostené na monokrystalickém substrátu Cu(100) jsou známy svou schopností strukturní a magnetické fázové přeměny při ozáření iontovým svazkem, a to do prostorově centrované kubické struktury charakteristické feromagnetickými vlastnostmi. Monokrystalický Cu(100) substrát je možné také nahradit Si(100) s mezivrstvou Cu(100). Pomocí fokusovaného iontového svazku lze dále snadno lokálně modifikovat magnetické vlastnosti ozařované vrstvy. Tato metoda přímého zápisu magnetických struktur je alternativou k běžným litografickým technikám, nabízející nové jimi nedosažitelné možnosti. Připravené magnetické struktury následně využíváme k propagaci spinových vln. V práci je představen celý proces od růstu vrstev, přes přípravu mikrostruktur, až po studium jejich struktury a statických i dynamických magnetických vlastností. S využitím vektorového síťového analyzátoru studujeme ve vrstvách a v mikrostrukturách připravených fokusovaným iontovým svazkem feromagnetickou rezonanci a propagující se spinové vlny. Zdrojem spinových vln o definovaných vlnových vektorech jsou litograficky připravené koplanární vlnovody, sloužící také k induktivní detekci vln. Pomocí feromagnetické rezonance kvantitativně určujeme materiálové charakteristiky jako jsou saturační magnetizace a parametr útlumu a ze spekter propagujících módů následně určujeme charakteristiky spinových vln, které porovnáváme s dalšími feromagnetickými materiály.
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