National Repository of Grey Literature 53 records found  beginprevious21 - 30nextend  jump to record: Search took 0.00 seconds. 
Population Structure and History of the Sahel From the Point of View of Alcohol Metabolism
Jurišová, Lívia ; Černý, Viktor (advisor) ; Macholán, Miloš (referee)
The Sahel is the northernmost part of sub-Saharan Africa. The Sahel is inhabited by a complex mixture of people, who differ in their ethnic background, language affiliation and lifestyle. The most important and most studied gene of ethanol metabolism, ADH1B, has been understudied in the Sahel region, mainly due to the low frequency of the variant rs1229984-T, which accelerates the first step of alcohol metabolism. Due to its non- African origin, the variant rs1229984-T represents a suitable marker for population history study. The eastern Sahel is where immigrants from Arabia have been settling and mating with African populations since the 7th century CE. To study population structure and history from the point of view of alcohol meta- bolism, we have used already known genotype data from fourteen Sahelian populations, which inhabit mainly the eastern part of the region. Due to the absence of the critical locus rs1229984 in the genotyping array, the samples have been subjected to sequen- cing. Combined data from the microarray and the sequencing constituted 26 loci of the ADH1B gene and its close periphery, which came from 318 samples. Genotypic data needed to be converted into their haplotypic form by a phasing prog- ram. To choose the more appropriate phasing program, the data have been arranged...
Piezoelectric nanofiber materials for wearable electronics
Frolíková, Štěpánka ; Škarvada, Pavel (referee) ; Macků, Robert (advisor)
This thesis deals with the influence of production parameters on the morphology of PVDF nanofibers produced by electrospinning. Nanofibers are generally a widely used material, nanofibers are generally a widely used material, they can also have piezoelectric properties, which gives them a specific spectrum of use, eg in biosensors. The production of nanofibers was realized by electrospinning. A scanning electron microscope was used to examine the morphology and surface properties. The aim of this thesis is to compare the properties of PVDF nanofibers produced under different settings of production parameters.
Preparation for the implementation of a prestressed bridge in the village of Hnojník
Stupka, Matouš ; Diaz, Yvetta (referee) ; Vlčková, Jitka Laura (advisor)
The subject of this diploma thesis is the preparation for the implementation of a prestressed bridge in the village of Hnojník. This thesis contains a technical report, coordination situation of the construction with broader relations to transport routes, phases time shedule, a feasibility study of the main technological phases, project of construction site equipment, a suggested list of the main construction vehicles and building mechanisation, time shedule of main construction, shedule of transport of fresh concrete mixture, technological regulation of concreting bridge deck, technological regulation of additional prestressing bridge deck, control and test plan, health and safety at work on bridge construction, The annexes contain drawings of concept of load-bearing falsework, drawing of the construction site equipment, drawing of coordination situation of the construction with broader relations to transport routes , itemized budget, graph of workers and machines needs, phases time shedule and delivery shedule of fresh concrete mixture.
Phase shifted harmonic oscillators for practical education
Hudec, Marek ; Petržela, Jiří (referee) ; Šotner, Roman (advisor)
This thesis focuses on designing a laboratory preparation for the study of phase-shift oscillators. The first part of the thesis comprises a theoretical discussion regarding the given problem. The laboratory preparation will include two types of oscillator circuits. An operational amplifier will be used as the amplifying element together with an RC feedback loop in one type of circuit whilst the other type will consist of operational transconductance amplifier employed as inverting amplifiers and generating feedback. The second part of the thesis includes the actual design of the preparation. The design process covers construction stage of the preparation, calculation of the component parameters necessary for oscillation to occur, simulations of the individual circuits along with THD analysis as well as with analysis of manufacturing variances. The second part of the thesis also contains the design of a separate block of all-pass filter. The simulation results will be verified experimentally, on a printed circuit board. In the last part of the thesis, I will evaluate and intercompare the theoretical, simulation and practical results.
Plethysmography for retinal video processing
Plavcová, Daniela ; Valterová, Eva (referee) ; Kolář, Radim (advisor)
Sight is one of the five human senses and is very important for exploring near and far surroundings. However, this is prevented by various eye defects, which may be related to the vascular system of the retina and the pulsations that are observable on it. This work deals with the study of the relationship between the mentioned pulsations and glaucoma. To search for connections between these two aspects, video recordings from the retina are used, the pulsation of which is further worked in the form of a 1D signal, especially in the spectral region.
Phase shifted harmonic oscillators for practical education
Hudec, Marek ; Petržela, Jiří (referee) ; Šotner, Roman (advisor)
This thesis focuses on designing a laboratory preparation for the study of phase-shift oscillators. The first part of the thesis comprises a theoretical discussion regarding the given problem. The laboratory preparation will include two types of oscillator circuits. An operational amplifier will be used as the amplifying element together with an RC feedback loop in one type of circuit whilst the other type will consist of operational transconductance amplifier employed as inverting amplifiers and generating feedback. The second part of the thesis includes the actual design of the preparation. The design process covers construction stage of the preparation, calculation of the component parameters necessary for oscillation to occur, simulations of the individual circuits along with THD analysis as well as with analysis of manufacturing variances. The second part of the thesis also contains the design of a separate block of all-pass filter. The simulation results will be verified experimentally, on a printed circuit board. In the last part of the thesis, I will evaluate and intercompare the theoretical, simulation and practical results.
Laboratory equipment aimed on the all-pass filters
Lokaj, Jakub ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
Theme of bachelor thesis is design and realisation of allpass filters. It consists of using pasive and active components in design of allpass filters and followed by realisation in laboratory equipment. Functionality was verified in simulating software LTspice and SNAP3v2. In real implementation were used integrated circuits such as TL071, AD844 and LT1228 for CCII+, OTA and design with op-amp. This bachelor thesis includes concept of laboratory equipment, where will be compared functionality of allpass filters with simulated results
Implementation of Apartment House for Social Housing in Starec - Building Contruction Project
Bobek, Vojtěch ; Nečasová, Barbora (referee) ; Liška, Pavel (advisor)
Master thesis focuses on complex conducting of the technological project with accented earthwork, laying foundations and ceiling construction. Apartment building consists of two floors and is based in complicated geotechnical conditions which require changing subsoil and laying a foundation slab. The main aim of this thesis is a proposal of technological notes, time and financial management, selection of machinery, transport to the building site, work safety regulations, quality check of the conducted work and construction organisation.

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