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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Wetting and Spreading of Solder on PCB Surface
 Wiesner, Lukáš ; Špinka, Jiří (referee) ; Starý, Jiří (advisor)
This work deals with the metal surface wetting problems of molten lead-free solder and monitoring of ongoing processes at the inter-phase interface. This work also deals with flushing monitoring of spreading velocity on solder finishes Ni/Au and Immersion Sn deposited on copper plated base material FR4 using digital cameras. Measurement is performed at the improved workplace. After the reflow process is measured by length of spreading solder. It evaluates and compares the time dependence of velocity of spreading solder for Ni/Au and Immersion Sn finishes.
Detailed record
Design of a photovoltaic power plant with battery storage for a family house in area Ústrašice
 Wiesner, Lukáš ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
The master thesis covers the design of a photovoltaic solar power plant for a selected family house in Ústašice in Tábor’s region The theoretical part summarizes the photovoltaic phenomenon, production, and differences of various technologies of photovoltaic panels and different types of battery storages. The project also includes the legislative and subsidy conditions in the Czech Republic related to the PV topic. The practical part of the thesis starts with information about the layout of the family house with an analysis of household consumption data for the last five years. The analysis is followed by the selection of a suitable type of system for photovoltaic water heating. Using multi-criteria analysis, the most suitable solar controller and PV panels are then selected. The proposed system is updated with other necessary components. Finally, a simulation of the system is created in PV*SOL to determine the lighting conditions and to evaluate the economics side of the entire project.
Detailed record
Wetting and Spreading of Solder on PCB Surface
 Wiesner, Lukáš ; Špinka, Jiří (referee) ; Starý, Jiří (advisor)
This work deals with the metal surface wetting problems of molten lead-free solder and monitoring of ongoing processes at the inter-phase interface. This work also deals with flushing monitoring of spreading velocity on solder finishes Ni/Au and Immersion Sn deposited on copper plated base material FR4 using digital cameras. Measurement is performed at the improved workplace. After the reflow process is measured by length of spreading solder. It evaluates and compares the time dependence of velocity of spreading solder for Ni/Au and Immersion Sn finishes.
Detailed record

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