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Streaming Ray Tracer on GPU
Dvořák, Jakub ; Jošth, Radovan (referee) ; Herout, Adam (advisor)
Current consumer GPUs can be used as high performance stream processors and are a tempting platform to be used to implement raytracing. In this paper I briefly present raytracing principles and methods used to accelerate it, modern GPUs programmable pipeline and examples of its use. I describe stream processing in general and available interfaces enabling the usage of GPU as stream processor. Then I present my GPU raytracer implementation, used algorithms and experiments I have made.
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Present production of heat exchangers in the Czech Republic
Dvořák, Jakub ; Bělka, Miloslav (referee) ; Jaroš, Michal (advisor)
The aim of this bachelor’s thesis is to compile summary of heat exchangers manufacturers, which occurs on Czech market. In the theoretical part of this thesis is stated distribution of heat exchangers according to some basic criterions (for example flow arrangement). This distribution is followed by short explanation of how heat transfer can be realized. In the end of the theoretical part of this thesis there are presented some physical relations and their description. More practical and main part of this bachelor’s thesis contains summary of heat exchangers manufacturers and examples of their products, which are divided to some categories, mainly according to construction. At the end, there is comparison of brazed plate heat exchangers from various companies in application for preparation of hot water.
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Family House on the slope
Dvořák, Jakub ; Bečica, Radek (referee) ; Drobeček, David (advisor)
In the bachelor´s thesis, a design of a house situated in the slope is presented and its detailed project documentation is worked out. The thesis is divided up according to the valid laws, norms and regulations required for realization of the project. The unique feature of the house designed is its location in the sloping terrain of the plot: the roof of the building gradually connects with the surrounding terrain. Due to such an innovative solution, a vast number of technical and constructional details needed to be dealt with and were described in the thesis.
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Analysis and comparison of the economic cycle and its particularity for countries of the Visegrad Group in ages 2004 to 2014
Dvořák, Jakub ; Štekláč, Jiří (advisor) ; Chmelová, Pavla (referee)
This thesis deals with analysis and comparison of the business cycles of the Visegrad Group countries in the period 2004--2014. The subjects of the theoretical part are the phases, length and theoretical perspectives of economics schools to the business cycle. In next part of the theoretical part are descriptions of the macroeconomic indicators, by which the individual countries are analyzed and compared. The theoretical part is dedicated to the Visegrad Group itself. In line with the objective of the thesis, the practical part revealed that the highest and the most stable economic growth is reached by the Polish economy. In contrast, the Hungarian economy scored the worst economic performance during said period. Common problems of economies with high deficit in the current account balances (in which the Hungarian economy, which faced bankruptcy in 2008, is the worst) arise from the data findings. Another common feature of these compared the economics are the public budget deficits, which it negative is reflected in the mount of total public debt. The practical part contains closed prediction of development of each country for the years 2015 and 2016.
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Split Softening as a Problem of Machine Learning
Dvořák, Jakub
Softening splits in decision trees has ability to grow up quality of a classifier. This article concerns with some aspects of an optimization task to find such softening that reaches the best classification on training data. Experiments show, that improvement occurs on test data as well.
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