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Compaction of Asphalt Mixtures - Analysis of Boundary Conditions on the Construction Site
Hutnění asfaltových směsí - analýza okrajových podmínek na stavbě
(Czech Technical University in Prague, 2026-05-18) Míka, Tomáš; Mondschein, Petr; Hýzl, Petr
This bachelors thesis addresses the issue of asphalt mixture compaction, focusing on the influence of site-specific conditions and a comparison of theoretical computational models with actual practice. The theoretical section describes the types of asphalt layers, the compaction equipment used, testing methods, and factors influencing the compaction process. The practical section is devoted to the analysis of data obtained by measuring three types of structural layers during actual paving. The recorded surface cooling values and achie-ved compaction levels are compared with the assumptions of the HAV software. The results demonstrate that although the theoretical model is a useful tool for the preparatory phase of construction, it cannot always fully account for changing site conditions and technological influences. The thesis concludes with a comparison to earlier research using the same software, thereby providing a broader perspective on the reliability and practicality of computational models in road construction.
Using digital image correlation for monitoring vertical movements of bridges
Využití metody digitální korelace obrazu pro sledování svislých posunů mostů
(Czech Technical University in Prague, 2026-05-18) Rasocha, Hynek; Línková, Lenka; Jákl, Martin
This bachelor thesis focuses on verifying the suitability of the digital image correlation method for monitoring the vertical displacements of bridges. An experiment was conducted in which vertical displacements of a monitored object were realized and recorded using both the digital image correlation method and leveling. The resulting values are compared, and the achieved accuracy of the displacements measured by the digital image correlation method is evaluated. An integral part of the study is an analysis of the method's accuracy in relation to the object distance, an assessment of error sources, and the formulation of the findings.
High Voltage eFuse for 800 V Automotive
Vysokonapěťová elektronická automobilová pojistka 800V
(Czech Technical University in Prague, 2026-05-22) Strnad, Petr; Záhlava, Vít; Jung, Václav
This Masters thesis presents the design, realization, and testing of a high voltage electronic fuse (eFuse) intended for electric vehicles with an 800 V traction battery. The project encompasses the entire development cycle, including electronic schematic design, component selection, printed circuit board (PCB) layout, firmware development, and the creation of a graphical user interface (GUI). The proposed eFuse independently protects and controls up to three loads, each supporting a maximum power of 3.5 kW. A Silicon Carbide (SiC) MOSFET from STMicroelectronics serves as the primary switching element. The device provides robust overcurrent protection with rapid load disconnection under fault conditions. The system continuously monitors the operational status of each channel and transmits telemetry to the GUI via a galvanically isolated UART-over-USB link. The interface provides visualisation of measured values and enables remote control of the individual switches. Finally, the thesis details experimental measurements conducted on the completed prototype, verifying the overall functionality and reliability of the designed system.
Connectivity-Aware Placement and Routing of IC Resistor Ladders
Konektivitou řízené rozmístění a propojení odporových žebříků v integrovaných obvodech
(Czech Technical University in Prague, 2026-05-22) Baghdasaryan, Tigran; Barri, Dalibor; Kotě, Vlastimil
This thesis presents an automated Python-based framework for the connectivity-aware placement and routing of integrated-circuit resistor ladders. Precision analogue and mixed-signal circuits, such as digital-to-analogue converters, voltage dividers, reference networks, and bias circuits, strongly depend on accurate resistor matching. In practical IC design, this matching is affected not only by nominal resistor values but also by physical placement, thermal gradients, routing asymmetry, and parasitic wire resistance. The proposed tool chain addresses these effects in a unified flow, starting from a SPICE resistor netlist and producing a placed, routed, and electrically verified layout. The framework combines dual-engine unit resistor decomposition, a physics-based multi-objective placement engine, a tournament scheduler using Genetic Algorithm, Tabu Search, and Simulated Annealing, a Q-learning observer, a 2.5D A* Steiner routing engine with rip-up and reroute, and a post-layout thermal-electrical verification stage. The verification includes temperature-coefficient-based resistance correction, distributed wire-mesh parasitic injection, nodal analysis, voltage-error evaluation, and effective bit-resolution reporting. The method is evaluated on several resistor-ladder benchmarks, including an 8-element series chain, a 35-element series chain, a 4-bit R-2R DAC ladder, and an 8-bit R-2R DAC ladder. The obtained results demonstrate effective bit resolutions of approximately 15.3 bits, 15.1 bits, 13.3 bits, and 12.2 bits, respectively. The results confirm that connectivity-aware and thermal-aware automation can significantly reduce manual layout effort while preserving high electrical accuracy. The work shows that an open-source automated layout flow can provide a practical basis for resistor-ladder physical design and future analogue IC layout automation.
Structural design of mother and baby hostel
Konstrukční řešení azylového domu pro matky s dětmi
(Czech Technical University in Prague, 2026-05-25) Fikrlová, Eva; Vašková, Jitka; Tipka, Martin
The bachelor's thesis deals with the structural design of a asylum for mothers with children. The bachelor's thesis of Tereza Riegerová from the Faculty of Architecture was the basis for the design processing. There is a building with six above-ground and one underground floor. The thesis is divided into several chapters. Basic information about the building and design assignment is given in the first chapter. The second chapter contains a technical report. The third chapter deals with the preliminary static calculation, which includes structural diagrams, load calculation, design and assessment of individual load-bearing elements of the structure. The fourth chapter is devoted to a detailed static calculation of a prefabricated three-flight staircase. The staircase design also included the solution of acoustic elements and the design of transport anchors from Halfen intended for handling prefabricated elements of staircase arms. The Halfen TPA 3.13 software was used for the design of transport anchors. Drawings of the shape and reinforcement of prefabricated elements of arms R1 and R2 are also part of the work. The fifth chapter deals with the design of reinforcement of a monolithic column in the 1st PP, the output of which is a drawing of the reinforcement. Drawings of the shape of all structurally different floors were processed as part of the bachelor's thesis. The structural design of the elements was carried out in accordance with currently valid standards.