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Audio Saving Module
Strašil, Ivo ; Kouřil, Jiří (referee) ; Říha, Kamil (advisor)
The aim of this thesis was to design and construct an autonomous, hardware voice recorder/player module. The device is made as a compact, built-in component for a motherboard of a target appliance. During recording, the incoming analog voice signal is converted to a digital stream by an ADC with 16 bits resolution and 24 kHz sample rate. Microcontroller LPC2103 (ARM7TDMI core) processes data, recalculates resolution and sample rate, encodes and converts to WAV format and save into a FAT/FAT32 filesystem on a Secure Digital memory card. At playback, the process is opposite: the microcontroller reads file from the memory card, decodes the stream and sends it to a DAC and then to a reconstruction filter. So there is an analog voice signal at the output again. The firmware allows control by logic inputs or by a serial bus, processing of uncompressed WAV files or WAV files with A-law or IMA ADPCM compression, continual recording including automatic freeing of card space by deleting the oldest records and a usage of a voice emphasis filter or of a signal dynamic compression circuit.
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Evaluation kit with ARM7
Březík, Petr ; Macho, Tomáš (referee) ; Burian, František (advisor)
The work deals with the 32-bit microcontroller with AT91SAM7X256 ARM7 core. The overall purpose of the thesis is to use the microcontroller as a data logger in Orpheus robotic system. The main part of the work focuses on detailed description of the designed board, software and development environment. A comparison of different varieties of the microcontroller with this core is included.
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The Design of a USB Device
Klír, Tomáš ; Strašil, Ivo (referee) ; Hudec, Antonín (advisor)
In theoretical part of this master thesis is analyzed USB 2.0 interface, including USB OTG. Mainly are described here properties which are good to know for USB device design. In brief is given here a structure of the FAT file system. Practical part contains design of OTG Device and it’s realization including implementation of libraries for communication via USB and for working with FAT file system.
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Unsaturated fatty acids in the diet of inpatients
KONHEFROVÁ, Veronika
The thesis with the name "Unsaturated fatty acids in the diet of inpatients" is divided into a theoretical and a research parts. The theoretical part is focused on sorting out lipids and the recommended daily dosing. Next there are described the chemical structure of fatty acids and basic differences between saturated (SFA) and unsaturated (trans and cis) fatty acids. The biggest part of the theory is formed by the unsaturated fatty acids, their characteristics, food source and their effect on people´s health. Dietetic system and its future development is described in the final part. The research part analysis took place in the Centre for prevention of lifestyle diseases in České Budějovice. It was analysed nine fourteen-day diet plans, which are most frequently served in the Jindřichův Hradec hospital, PLC. The research diets are 0 (liquid diet), 1 (mushy diet), 2 (soft diet), 3 (well-balanced diet), 4 (low-fat diet), 9 (diabetic diet), 9/2 (diabetic soft diet), 11 (nutritious diet) and 13 (diet for teenagers). The aim of this thesis is to calculate the amount of monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) in the most frequently served diets of hospitalized patients in the Jindřichův Hradec hospital, PLC, with the help of the nutrition software Nutriservis Profesional/NutriDan and to compare the amounts of both MUFA and PUFA in the particular diets. The results of my analysis show that none of the diets meets the recommended SFA:MUFA:PUFA ratio (<1:1,4:>0,6). In the majority of ratios is the amount of SFA:MUFA about 2:1,4. That means that the diets contain quite high surfeit of SFA. However MUFA:PUFA ratios except diet 0 (both two weeks) and 2 (second week) are above the minimum recommended references, it can be said that these diet's compositions aren't so bad. Only it would be appropriate to reduce SFA in diets, which would improve ratios according to the recommendations. This finding corresponds to the Research question number 1 about the real distribution of unsaturated fatty acids in individual researched diets. The Research question 2 about the total fat intake in each diet is answered as follows. Diets differ in the representation of total fat grams for each day according to standard of Jindřichův Hradec hospital, PLC. Diets 1, 2, 4 have fluctuating levels of total fat and are largely below the references. The diet 0 does not even meet any hospital recommendations for any day, the other diets, 3, 9, 9/2, 11 and 13 have the fat excess. The fat excess is given with the excess of saturated fat acids in diets and a significant part will be probably formed by a NutriDan undefined component of fats (the difference between total fat and SFA + MUFA + PUFA). I assume that those are the trans-unsaturated fatty acids. The results of this thesis will help the nutrition therapists from the Jindřichův Hradec hospital, PLC as a feedback, so that they could improve the percentage of unsaturated fatty acids in their diets according to the recommendations of nutrition companies.
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The lipid quality of our economically significant fish species
KREJSA, Jakub
The level of fish consumption in the Czech Republic is very low. One of the possible factors influencing this situation is low awareness of the customer or consumer. The thesis "The Lipid Quality of our economically significant fish species" works with the list of nineteen economically most significant fish species not only including fish from the semi-intensive and intensive breeding, but also such species that are interesting for the consumption from the sport fishing point of view. The samples taken from particular fish were primarily used for the analysis of the fat content and fatty acid composition. The analysis established very interesting results in this field and created basis for further analysis for establishing atherogenic and thrombogenic index or for formation of nutritive values mentioned as "Big 7" (fat content and the ratio of fatty acid out of it, sacharide content and the sugar ratio in it, protein content, ash content and energy value) by particular fish species according to the regulation ES 1169/2011. The results of this work confirmed that the fat content and its composition are highly influenced by the type of ingested nourishment. The fish bred in semi-intensive way with the highest fat content are Common carp (7,62 ? 2,9 %) and Silver carp (6,87 ? 1,37 %). On the contrary the predatory fish evinced the fat content usually within 1%. The fish from extensive breeding or the types caught in sport fishing are in the fat con-tent more balanced. The fattest fish in this group is Silver Bream (5,52 ? 0,44 %) and the lowest content evinced Goldfish (1,14 ? 0,38 %). Also the species living in the aquaculture and living in the free waters as well were compared (Common carp, Rainbow trout, Peled, Tench, Wels catfish). The fatty acid composition significantly depends on the fat content. The predatory fish contain 195 - 219 mg×100 g-1, the most (p0,05) was found by the peled from the extensive breed (1048 mg×100 g-1 EPA + DHA). The participation of SFA by the most of the fish was under 30%, the content of MUFA was the highest by the Common carp (52,71 ? 7,75 %), the lowest by the European perch (18,83 ? 1,12 %). Pike, Zander and European perch contain relatively the most of PUFA, this is over 50%. All the fish species (Nile tilapia excluded) show in this study the values of atherogenic index below 0,5 and thrombogenic index below 0,4. The total energetic value was counted from the results of nutritional values presented in the "Big 7" list. The higher energetic value is directly proportional to the increasing fat content. The fish species included in this thesis show the total energetic value in the range of 500 - 900 kJ×100 g-1. The results of this study bring complete, laboratory proven information about the nutrition composition of our fish. This data can be appli-cable not only to increase the knowledge of the customers but mainly to be used by breeders and manufacturers of fish as an implement of fulfilling the duty of stating the nutrition facts on their products according to ES 1169/2011 on the providing infor-mation about the eatables to the consumers.
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Optimization of the drying processes of preserved meat products
BORKOVCOVÁ, Alena
My thesis which deals with optimization of durable meat products processing. Research has found that during drying a durable meat product, there has been a gradual water loss and impairment of aw below 0.85. Fat and salt levels were rising. Measured values show that an optimum time to dry durable meat products is 42 days and it should be done gradually. Measurements have shown that the results are strongly influenced by random variations. Only the difference in the average proportion of fat between 7th and 14th day wasn´t proved at the 5% level of significance.
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Determine the amount of subcutaneous fat in floorball players.
HANŠPACH, Luboš
Increased emphasis is now being placed on dynamics, speed, and coordination in players of team sports (floorball, football, ice hockey, volleyball). The body fat is one of the factors that influences the the power of the players in sports. A comparisson between 2 flooball teams will be made and body fat will be measured. The teams entail various age groups of teams of Ceske Budejovice and Liberec, namely: adults, juniors, adolescents, younger pupils, older pupils both in men and women. Later, the body fat figures will be compared among players of different age groups. Then we can compare the amount of the fat body in the floorball players from single teams. The we can analyze if the different training load has any impact on the amount of the body fat. The goal of this work is to analyze and consider the amount of body fat in floorball players together with different physical burden in different age groups and demographic conditions.
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Breeder and economic evaluation of selected goat breed
CHVOSTOVÁ, Martina
The research was done during 2004 {--} 2006 on ecological farm specialised for Czech white shorthaired goat. Milk production per lactation period was in 2004 390 kgs, in 2005 381 kgs. It was deeply below average. In 2006 it grew up to 678 kgs that was only little below average of 707 kgs in Czech Rep. The average day milk yield was that year 2,5 kg per goat. This breed has very low fertility in longterm. Farm match the requirements of financial health. In 2006 was the income per one goat 24 818 CZK and variable costs 17 310 CZK per goat.
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Monitoring of fulfillment of consumption basket in the selected kindergartens
ZIMMELOVÁ, Veronika
The main aim of the Bachelor thesis in the theoretical part was to outline the issue of boarding in kindergartens, to explain the term ,,consumption basket`` and subsequently to provide analysis of single parts of the consumption basket in regards to its benefits for the organism of a child. In the practical part, the explanation on the principle of calculation of consumption basket is given in the first place. The main aim of the practical part is then to analyse consumption basket in selected kindergartens and carry out, based on the selected criteria of classification, evaluation of fulfillment of consumption basket in the respective kindergartens.
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