National Repository of Grey Literature 339 records found  beginprevious21 - 30nextend  jump to record: Search took 0.01 seconds. 
Comparison of the environmental impact of different car's drive concept
Kopca, Filip ; Blaťák, Ondřej (referee) ; Zháňal, Lubor (advisor)
This thesis describes structure and operation of particular car‘s drive mechanisms, examine and compares their level of harmfulness against living environment. From acquisition, manipulation and distribution of raw material needed for manufacturing vehicles, amount of used propellant, production of emissions during life cycle, resources needed for maintenance, demands of waste disposal and possibilities of recycling.
Energy sources and consumption
Majer, Jan ; Kuba, Pavel (referee) ; Bobák, Petr (advisor)
The thesis describes basic methods of producing energy and presents the basic division and characterize sources of energy. It compares and describes the production of energy in the Czech Republic and the United States of America. The thesis explains, where and how is this energy consumed and presents energy production and consumption in the Czech republic and in the United States of Amerika and provides a comparison of the two countries. Indicates the percentage of consumption in various sectors in these countries and the distribution of energy consumed by resource used. The thesis is also focused on the comparison of household consumption in the Czech Republic and the United States of America. It specifies the average household consumption of Prague and New York and investigates the causes of the difference in average household consumption of both countries.
Modern turboprop engine for aircraft to 5700kg MTOW
Košař, Miroslav ; Nastálek, Ondřej (referee) ; Šplíchal, Miroslav (advisor)
This bachelor’s thesis contains a database of available turboprop engines with power up to 2000 kW for aircraft with take-off weight of up to 5700 kg. It briefly mentions basic information about turboprop engines. The main part contains an overwiev of chosen engines and their comparison in the form of tables and graphs. Furute predictions are briefly mentioned in the ending.
Control system for cantilever gates
Koždoň, Ondřej ; Arm, Jakub (referee) ; Bradáč, Zdeněk (advisor)
The goal of this bachelor's thesis is to design a battery powered control system for wireless controlling swing gate (may be used for cantilever sliding gates or garage doors). This system is designed as a small electronic system with necessary Inputs/Outputs (I/O) and an Input for charging a battery from solar cells. The result of this bachelor's thesis are two main PCBs with dimensions of 5×5cm for controlling the gate and remote controller with dimensions of 2,3×4,4cm. Main PCB allows adding more remotes, deleting all remotes and modes for the way of controlling the gate (opposite direction, open only, close only, open wing, close wing, stop the gate) and selecting Master/Slave gate. Communication works on frequency of 434MHz.
An analysis of operation of a family house PV system with electrical energy accumulation
Hroděj, Daniel ; Charvát, Pavel (referee) ; Jaroš, Michal (advisor)
This bachelor's thesis deals with a photovoltaic system of family house using accumulation of electrical energy. The basic characteristics of photovoltaic systems are listed in the theoretical part. In addition, the best known methods of energy storage are compared. The computational part presents the selection and proposal of the system for a particular family house. At the end of the thesis the values of consumption and produced energy are compared.
Assessment of the Impact of Thermal Insulation Performance of a Detached House in the Zlín Disctrict on Running Expenses of this Property
Velísková, Eva ; Uhlová, Eva (referee) ; Weigel, Lubomír (advisor)
Master´s thesis deals with an assessment of investment return in saving precurations. The issue is used on an ordinary detached family house. The assessment is done in more variants to reach an objective comparison of the most advantageous investments. In the first part there is a comprehensive theory explaining the connections of the procedures and the algorithms of the calculations. The second part is calculation, especially from the thermal engineering, energy rating of buildings and the economic return on investment. The third part is an evaluation which, on the basis of the experiences and the results from the thesis, offers a proces show to think in case of intended reconstruction and how to evaluate the efficiency of the investments in the saving precurations.
Wireless IR Sensor for Area Invasion Detection
Suchý, Lukáš ; Kubíček, Michal (referee) ; Kolouch, Jaromír (advisor)
The target of this Bachelor thesis to design a security system for detection of the monitored space disruption, containing several battery powered sensors which are connected to central unit. From Bachelor thesis is evident, that for communication is to be used integrated circuit SI4432. Sensor detects motion in distance no less than 5 m and sends reports of the space disruption to central unit where this information will be processed. After that the user will be informed by the central unit. Sensor unit should be battery powered with lifetime in years. In conlusion, the system it tested in real work.
Analysis and Evaluation of the Operating Costs of the Bus Line No. 49 Provided by the Brno Transport Company
Zemanová, Veronika ; Chabičovský, Petr (referee) ; Libertín, Josef (advisor)
This diploma thesis deals with the problem of operating costs analysis and their evaluation on the bus line No. 49 provided by Brno transport company. The first part is focused on history and current status of the Brno transport company. In the second part the route of the bus line No. 49 and technical parameters of Crossway Low Entry bus are further specified. Finally the thesis describes all costs to ensure the operation of this line.
Electric and Hybrid Vehicles Analysis
Slaběňák, Patrik ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
Nowadays, oil resources start to decrease, therefore it is necessary to think about alternative sources of energy. The result of this semester project is a basic overview of the current development of electric and hybrid cars, with potential application in normal operation and the proximity of their main characteristics, such as mileage, price and service when traveling. The energy required to operate the electric stored in batteries are recharged using the power stations, which is also devoted part of the work. The thesis focuses on the design and calculation of power consumption for a defined route of four-wheel electric wheelchair. The conclusion of the thesis deals with the future development of hybrid and electric vehicles, and with the expected trends in the field of power electronics and motors and with the propagation of hybrid vehicles to the customers.
Overclocking of Modern Processors with an Emphasis on Performance, Power Consumption and Temperature
Kelečéni, Jakub ; Vaverka, Filip (referee) ; Nikl, Vojtěch (advisor)
This thesis analyzes the dependency of performance, power consumption and temperature on processor frequency. Theoretical part discusses the processor architecture, benchmarks and algorithm types. Experimental part is focused on  benchmarks - matrix multiplication, Quicksort, PI number calculation, Ackermann function, LAMMPS, PMBW, Linpack. This set of benchmarks includes both single-threaded and multi-threaded algorithms. Testing consist of three different settings of processor frequency. Multi-threaded benchmarks using different number of threads. Informations regarding the power consumption of CPU and RAM were recorded during these tests. Every test logs his running time. The impact of parallelization on power consumption and runtime is also reflected. Results from the tests are shown in charts and tables. The proper configuration of CPU for each given algorithm is analyzed in conclusion.

National Repository of Grey Literature : 339 records found   beginprevious21 - 30nextend  jump to record:
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