National Repository of Grey Literature 53 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Kvazieuklidovské obory integrity
Čoupek, Pavel ; Šaroch, Jan (advisor) ; Glivický, Petr (referee)
In this thesis, we present an overview of some of the known facts about k-stage Euclidean and quasi-Euclidean rings and domains, certain generalisations of the concept of Euclidean ring, as well as some new results. Among the new results, the norm-free characterization of k-stage Euclidean rings based on a transfinite construction of k-stage Euclidean ring is fundamental and has many applications. Statements providing a way to construct new k-stage Euclidean rings from other k-stage Euclidean rings recieve special attention (with the integral domain case in mind). Also, we present an example of a 3-stage Euclidean integral domain which we believe is a good candidate for not being 2-stage Euclidean. 1
Cell signaling aberrations in primary immunodeficiencies
Fejtková, Martina ; Kanderová, Veronika (advisor) ; Vlková, Marcela (referee)
Primary immunodeficiencies (PID) are genetic disorders characterized by increased susceptibility to infections and various degrees of immune dysregulation. With the expansion of massive parallel sequencing, an increasing number of defects in immune-related genes is being identified in PID. However, the biological impact of the found mutations is often unknown. It is necessary to devise methods to clarify their causality for disease development, which may also aid therapeutic decisions. One of the novel discoveries are gain-of-function mutations in STAT1 gene, resulting in chronic mucocutaneous candidiasis. Candidiasis may be ameliorated with antimycotics or with targeted JAK-STAT inhibitor, ruxolitinib. For our patient with a novel mutation in STAT1, we developed a simple test for the detection of phospho-STAT molecules in peripheral blood lymphocytes. The test confirmed the gain-of-function character of the identified mutation and was used to monitor ruxolitinib treatment efficacy. In the second patient, who presented with lymphadenopathy and immunodeficiency, the as yet undescribed mutation in CASP8 was found. We proved its loss-of-function property expressed as reduced caspase-8 and caspase-3 cleavage, impaired cellular apoptosis, and decreased NFB-related signaling. The third patient who...
Comparison of PID controllers
Prosecký, Jan ; Veselý, Libor (referee) ; Dokoupil, Jakub (advisor)
The work deals with the issue of selecting a suitable discrete PSD controller. The basic types of continuous PID controllers and discrete PSD controllers are shown here. Next, the solution of system identification using Matlab/Ident is described. The tested PSD controllers were a position PSD controller, a PSD controller with differential component filtering and a Beta PSD controller, which was in the settings of the S-PD controller and the PS-D controller. The following methods were used to set the controllers: Ziegler-Nichols, Quadratic integral criterion, experimental settings using the distribution of poles and zeros in the Bode diagram through the Matlab program and the optimal modulus method. Individual controllers are compared by the Matlab/Simulink program in the Automation studio.
Educating model for mechatronics: model development and fast USB communication
Formánek, Martin ; Vejlupek, Josef (referee) ; Appel, Martin (advisor)
Táto diplomová práca sa zaoberá návrhom a realizáciou výukového modelu pre študentov mechatroniky na vysokej škole. Úvod práce sa zaoberá krátkym uvedením do problematiky používania univerzálnej sériovej zbernice a jej implementáciou pre komunikáciu s mikrokontrolérom. Druhá časť je venovaná hardwaru zariadenia, medzi čo patrí voľba vhodného motoru, návrh vhodných elektronických komponentov, návrh dosiek plošných spojov a taktiež mechanickej konštrukcie celého zariadenia. Nasleduje softwarová časť, popisujúca praktickú realizáciu komunikácie, program v mikrokontroléry, a Toolbox, ktorý umožňuje užívateľovi jednoduchú interakciu s hardwarom a to jak z Matlabu. tak zo Simulinku. Kombinácia navrhnutých hardwarových a softwarových prvkov umožňuje jednoduchú cestu k zlepšeniu vedomostí študentov v oblastiach programovania, riadenia a modelovaní sústav. Pre tieto účely je práca rozšírená o pracovný list, ktorý dopĺňa navrhnuté zariadenie o sadu experimentálnych úloh, zameraných na vybrané mechatronické problémy.
Design of Electromagnetic Positioning Platform for Testing of Nonlinear Control and Identification Algorithms
Rajchl, Matej ; Takács, Gergely (referee) ; Brablc, Martin (advisor)
Táto diplomová práca sa zaoberá návrhom a konštrukciou elektromagnetickej, polohovacej platformy, pre testovanie nelineárnych riadiacich a identifikačných algoritmov. Platforma je založená na tvarovaní magnetického poľa v každom bode pomocou troch elektromagnetov a polohuje oceľovú guličku po dotykovom paneli ktorý sníma polohu tejto guličky. Platforma má slúžiť hlavne pre demonštráciu rôznych nelineárnych riadiacich algoritmov vo výukovom prostredí. Tri príklady takýchto algoritmov sú ukázané a overené v rámci tejto diplomovej práce.
Potential Induced Degradation Effect On N-Type Solar Cells With Boron Emitter
Mojrová, Barbora
This study is focusing on Potential Induced Degradation (PID) effect on n-type solar cells with boron emitter. We designed and fabricated single cell modules using n-PERT cells with textured and flat front side, and with various passivation structures on the front side to prevent PID at the cell level. The modules were characterized before and after PID testing by electroluminescence (EL), IV measurements, reflection and Internal Quantum Efficiency (IQE). Measurements were done on both sides of module to obtain whether the degradation was going on the front side, rear side or both. Comparison of IQE of front vs rear side shows, that intensity of degradation is fully influenced by properties of the front side of antireflection and passivation (ARC) layer.
Theatre Stage Technology Control System
Melo, Damián ; Ševcovic, Jiří (referee) ; Zemčík, Pavel (advisor)
The topic of the diploma thesis is control of theatre stage devices. The basic types of control, methods for description and identification of systems and properties of regulators are discussed. Project includes description of theatre technogy and proposal for an appropriate control system. Also, a axis controller was implemented and tested on a real stage device.
Robotic Shopping Cart
Kuřátko, Jiří ; Beran, Vítězslav (referee) ; Materna, Zdeněk (advisor)
This bachelor’s thesis deals with the project of application about planning the robot’s movement in order to follow the specified person. At the beginning of the work, the Microsoft Kinect sensor which is used for sensing nearby objects is described. Hereinafter the possible methods how to identify human figures on the basis of depth data from the Microsoft Kinect sensor are discussed as well. The reader is also familiar with the methods determining the direction of arrival of acoustic signals. Last chapters of the work are dedicated to the motion control of the robot. Finally the complete implementation of the robot software for the platform of Robotic Operating System (ROS) is described.
Primes in discretely ordered quasi-Euclidean domains
Sgallová, Ester ; Šaroch, Jan (advisor) ; Glivická, Jana (referee)
This thesis studies discretely ordered quasi-Euclidean domains. The goal is to study primes and prime pairs in them and to answer the question, whether there can be a cofinal set of them. The first construction gives a domain that does not have a cofinal set primes. Another construction builds a principal ideal domain, which has a cofinal set of primes, but no two distinct non-standard primes differ by a natural number, so there is not a cofinal set of prime pairs. Furthermore, the thesis describes a construction of a principal ideal domain, whitch has a cofinal set of prime a-pairs for any even positive integer a. 1
Cell signaling aberrations in primary immunodeficiencies
Fejtková, Martina ; Kanderová, Veronika (advisor) ; Vlková, Marcela (referee)
Primary immunodeficiencies (PID) are genetic disorders characterized by increased susceptibility to infections and various degrees of immune dysregulation. With the expansion of massive parallel sequencing, an increasing number of defects in immune-related genes is being identified in PID. However, the biological impact of the found mutations is often unknown. It is necessary to devise methods to clarify their causality for disease development, which may also aid therapeutic decisions. One of the novel discoveries are gain-of-function mutations in STAT1 gene, resulting in chronic mucocutaneous candidiasis. Candidiasis may be ameliorated with antimycotics or with targeted JAK-STAT inhibitor, ruxolitinib. For our patient with a novel mutation in STAT1, we developed a simple test for the detection of phospho-STAT molecules in peripheral blood lymphocytes. The test confirmed the gain-of-function character of the identified mutation and was used to monitor ruxolitinib treatment efficacy. In the second patient, who presented with lymphadenopathy and immunodeficiency, the as yet undescribed mutation in CASP8 was found. We proved its loss-of-function property expressed as reduced caspase-8 and caspase-3 cleavage, impaired cellular apoptosis, and decreased NFB-related signaling. The third patient who...

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