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Ovality measurement of extruded fiber using three cameras
Loučka, Pavel ; Martišek, Dalibor (referee) ; Štarha, Pavel (advisor)
One of the important parameters observed during extruded fibre fabrication is its diameter. The diameter can be measured with a single scanning camera assuming that the fibre section has a circular shape. As proved in practice, another important parameter is ovality, that is the rate of fibre flattening. This paper assumes that the fibre section shape is elliptical. In such a case, at least three different views on examined fibre are needed. Mathematical part of this paper is concerned with analytical description of fibre ovality measurement using two different approaches based on the knowledge of linear algebra, projective geometry and conic sections theory. Main goal of this paper is thus to use both mathematical theory and image analysis methods for ovality and diameter determination. Precise calcluation of such quantities is, however, conditioned on precise camera system calibration, which is described in the paper as well. Additionally, the work contains a brief mention of technical realization of ovality measurement and its possible difficulties.
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Linear Algebra Education at Secondary School
Řepík, Michal ; Jančařík, Antonín (advisor) ; Bureš, Jiří (referee)
The submitted master thesis called Linear Algebra Education at Secondary School consists of a theoretical and an experimental part. The theoretical one deals with the identification of those linear algebra themes, which appear in the secondary school mathematics curriculum. It follows up with a more detailed look into those topics and proposes ways for further extension of secondary level linear algebra education. The main topics, which are identified in the thesis, are vectors and vector spaces, inner and dot product, systems of linear equations and matrices. The main section of this thesis is the experimental part, which incorporates the conclusions of the first one to design and later realise an online educational course of linear algebra as a part of the Talnet project, which took place in the winter semester of the academic year 2015/2016. The end of this thesis contains assessment of the results of this course.
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Linear Algebra at Business Universities and High Schools
Ulrychová, Eva ; Málek, Josef (advisor) ; Tůma, Jiří (referee) ; Hájková, Vladimíra (referee)
The thesis consists of two equal parts - of a part dealing with didactic aspects of teaching linear algebra, and of an unconventionally approached textbook Fundamentals of Linear Algebra, which is appended as a separate attachment. The didactic part deals with teaching mathematics, especially linear algebra, at the University of Economics in Prague, namely from the historical and methodological point of view. The thesis also includes a detailed evaluation of students' knowledge tests. The conclusions are largely portable to other non- technically oriented universities. The textbook is designed with respect to two levels of difficulty; it is written in the form accessible for students with lighter assumptions for the study of mathematics. The textbook is designed especially for students of universities where mathematics is not the main focus; it may also serve to interested high schools students as an introduction to a more advanced study of linear algebra.
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Educational environment additive polygons and polyhedrons
Sukniak, Anna ; Jirotková, Darina (advisor) ; Vondrová, Naďa (referee)
Title: Educational environment additive polygons and polyhedrons Summary: The main intention of the work is to introduce a new mathematical educational environment that would be especially attractive for pupils in the grades 6. -9., but also in the secondary schools, universities or primary schools The work consists of six parts. In the introduction are mentioned the reasons that led me to choose this topic. The second chapter describes the theoretical basis of the work. The third section describes in detail the environment of additive polygons, both its aspects - mathematical and educational one. Analogously, as it is in the third chapter, is processed the fourth chapter that is dedicated to the environment of additive polyhedrons. The fifth chapter is devoted to the linking of the environment of additive polygons and polyhedrons into the linear algebra. In conclusion are provided further opportunities of work with this environment.
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Extruded fibers ovality measurement
Loučka, Pavel ; Procházková, Jana (referee) ; Štarha, Pavel (advisor)
One of the important parameters observed during extruded fibre fabrication is its diameter. The diameter can be measured with a single scanning camera assuming that the fibre section has a circular shape. As proved in practice, another important parameter is ovality, that is the rate of fibre flattening. This paper assumes that the fibre section shape is elliptical. In such a case, at least three different views on examined fibre are needed. This paper deals with analytical description of fibre ovality measurement using two different approaches based on the principles of linear algebra and projective geometry. As a result, a considerable part of the work is devoted to these branches of mathematics with particular regard to analytical conics theory. Additionally, the work contains a brief mention of technical realization of ovality measurement and its possible difficulties.
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Exercises and problems in linear algebra ane geometry
JELÍNEK, Jan
The aim of this bachelor thesis is to compile a collection of problems from linear algebra and geometry. The collection is intended to be used as a teaching tool at the high school and university. Some tasks are resolved in the collection. Sample images created in a suitable dynamical geometry program (GeoGebra) are used when entering and describing the solution.
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The presence of a dead node in a distributed system
Ecler, Tomáš ; Škorpil, Vladislav (referee) ; Kenyeres, Martin (advisor)
This thesis deals with the distributed systems and the algorithms executed in these systems. The first part provides the theory relating to the mentioned topic as well as the mathematical tools used to model the functionality of a distributed system in which a dead node is present. The practical part is focused on an analysis of the impact of a dead node presence on the behavior of the Push-sum protocol. The simulations were executed on a tree, a ring, a star and a fully-connected mesh topology in Matlab.
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Path Planning in 3D Space
Krčmář, Radim ; Janoušek, Vladimír (referee) ; Rozman, Jaroslav (advisor)
Following thesis presents basics of motion planning, focusing on sampling-based algorithms. System for collision of objects in arbitrary dimensional space is created using linear algebra. Basic options for visualizaton of three-dimensional data are described. Selected algoritms were implemented in haskell and used to pull hedgehog out of the cage (popular disentanglement puzzle in Czech Republic).
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Geometric structures based on quaternions.
Floderová, Hana ; Vašík, Petr (referee) ; Hrdina, Jaroslav (advisor)
A pair (V, G) is called geometric structure, where V is a vector space and G is a subgroup GL(V), which is a set of transmission matrices. In this thesis we classify structures, which are based on properties of quaternions. Geometric structures based on quaternions are called triple structures. Triple structures are four structures with similar properties as quaternions. Quaternions are generated from real numbers and three complex units. We write quaternions in this shape a+bi+cj+dk.
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