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Mobile Application for Coordinating Units on the Battlefield
Peřina, Daniel ; Rychlý, Marek (referee) ; Hranický, Radek (advisor)
The goal of this work is to design and implement mobile application for coordinating units on the battlefield. Modern militaries use special information systems for planning, communication and quick sharing of battlefield information. These systems could be used in civilian settings, however the selection of commercially available solutions is quite limited. The available applications are usually paid and often they are not fully functional. Therefore, a new open-source mobile application implementing such a system was developed. The aplication displays a digital map showing current user positions and created map points. Map points can contain image attachments. Users can message other users directly in the application. The application was successfully tested and used in real war game with several dozens participants.
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Description of water cooling of the PerformX spectrometer
Hudák, Pavol ; Himr, Daniel (referee) ; Fialová, Simona (advisor)
Bachelor thesis focuses on description of hydraulic components and values of water-cooling system, which is a part of the XRF spectrometer and its performance options. It includes research of some spectrometric analyses used in laboratories, including XRF spectrometry, along with advantages and disadvantages of these analyses. This is followed by research that focuses on fluid flow and its hydraulic losses. It includes division of water-cooling systems and describes in detail the water-cooling system of the XRF spectrometer. Furthermore, the thesis includes a measurement of pressure losses, coolant flow rate and progress of temperatures in the water-cooling system during operation of the device. Based on measured values, processes in the cooling systems have been described and schemes with values have been created. Weak points of the cooling systems were revealed, and possible optimizations of the water-cooling system was suggested.
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Predicting the success of football players using machine learning methods
Janeček, Jan ; Filipenská, Marina (referee) ; Ředina, Richard (advisor)
This bachelor thesis focuses on the implementation of an artificial neural network in the Python programming language using the Keras library. The aim of the work is the numerical prediction of a football player’s match readiness on a scale from 0 to 1. The prediction is based on five physiological-kinematic data obtained from three training sessions preceding a given match. The reference data for training the artificial neural network includes technical data on the number of successful and total actions during the match. The data used in this work was collected from Sigma Olomouc U19 football club players using Polar Team Pro and Wyscout software. The lowest recorded model error, which was 0.1046, was achieved using a single hidden layer containing 15 perceptrons.
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Concept design of a multi-environment mobile robot
Zezula, Benjamin ; Burian, František (referee) ; Kopečný, Lukáš (advisor)
This thesis presents the design of a multi-enviroment mobile robot that combines the simple principle of movement both in water and on land. In particular, the design of a~four-wheeled vehicle is presented, whose innovation lies in the use of blades on the rear wheels. A suitable type of propulsion system is chosen based on a~study of~different types of~robots. During the research of already functional solutions, great emphasis is put on the advantages and disadvantages of~the different actuators as well as their mathematical and physical analysis. The proposed solution includes the proven design of four differentially controlled wheels for movement on land and the use of~blades on the rear wheels for movement in water. This concept is described in detail using a~mathematical-physical model, on the basis of~which a~working prototype has been developed. The thesis concludes with an experimental verification of~the agreement between the mathematical model and the real prototype. This verification focuses on the motion dynamics and the behaviour of the robot in different environments. The differences observed are attributed to external influences such as the resistance of the gears or the manufacturing tolerances of the individual components.
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The influence of Red Bull energy drink on speed, power and rebound performance of female volleyball players at the performance level
HARRISOVÁ, Helena Estella
The aim of the bachelor's thesis was to find out the influence of Red Bull energy drink on the speed, strength and rebound performance of female volleyball players at the performance level. Fifteen first-league volleyball players of VK Madeta České Budějovice club from the women's category were tested. The performance of female volleyball players was assessed using a bicycle ergometer, rebound board and hand dynamometer in the middle of the 2023/2024 season at the laboratory of load diagnostics at the department of physical education, University of South Bohemia. Each player underwent testing twice with a one-week break. Participants were given a Red Bull energy drink and a placebo in random order. Drinks were blinded. Anaerobic parameters were examined together with the blood lactate concentration using Wingate test, the average height recorded by the Bosc test and the maximum hand grip strength using the hand dynamometer. We did not confirm any significant effect of Red Bull energy drink on the observed performance. The t-test and Cohen's d were used to assess the statistical and substantive significance of the results. No significant effect of Red Bull energy drink on the observed parameters was found, with the exception of the maximum strength of the right-hand grip (d=0,29), the average height of the jump with a bounce from the left leg (d=0,22), maximum heart rate (d=0,29), maximum relative power (d=0,31), fatigue index (d=0,4) and lactate (d=0,2), for which substantive significant influence was recorded with only a small effect. Based on the evidence obtained from the measurements, it was proved that the Red Bull energy drink in a short period of time (20 min) had no effect on the performance of athletes.
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Analýza parametrů reprodukce prasnic ve vybraném chovu
HLATKÁ, Tereza
The aim of the thesis was to analyze the influences affecting the fertility of sows (number of piglets/1 litter) in the monitored breeding from the period 2017 to 2023. The highest number of piglets was in 2023, with a total of 15.89 born, out of which 13.53 were born alive (a difference of 2.36 piglets). The lowest number of piglets was in 2017, with 13.78 born in total, out of which 12.34 were born alive. Within the genotype, the highest number of piglets was recorded in the landrace breed sows, with a total of 15.05 born and 13.52 born alive. Conversely, in the duroc breed, the number of born piglets was 10.88 in total, with 9.35 born alive. There was a consistent difference of 4.17 piglets (P<0.05) between the two breeds in both total and alive births. For hybrid sows of genotype YL and (YL)D, there was a difference of 0.88 piglets (P<0.05) in total born and 0.67 (P<0.05) in alive born. The lowest number of total born piglets (14.04) and alive born piglets (12.81) were born to sows in their 1st and 2nd litter. Sows in their 3rd-5th litter showed the most total born piglets (15.25) and alive born piglets (13.48). From the 6th litter onwards, there was a downward trend in the number of piglets, with a significant drop observed in alive born, by 0.55 piglets (P<0.05). Sows inseminated at 250 days old had a litter frequency of 13.12 total born piglets and 12.09 alive born piglets. Sows inseminated at 251 days old had a litter frequency of 14.37 total born piglets and 13.13 alive born piglets, with a difference of 1.25 total born and 1.04 alive born. With the prolongation of sow gestation length, there was a slight decrease in both total and alive born piglets. Sows with a farrowing interval 147 days had a higher number of total born piglets (15.34). With an interval 148 days, the number of total born piglets was 0.48 lower (P<0.05). The same trend was observed for alive born piglets, with a difference of 0.37 (P<0.05) between sow groups. Sows with an interval from weaning to insemination 4 days achieved a higher number of total born piglets (15.31) compared to sows with an interval 5 days (14.88), with a difference of 0.43 piglets. The same trend was observed for alive born piglets, with a difference of 0.34 piglets.
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Possibilities of controlling the greater sage-grouse (\kur{Heracleum mantegazzianum}) by cattle grazing
RYBÁŘ, Štěpán
Undergraduate thesis focuses on the ability to control greater sage-grouse by grazing cattle. The research was carried out on four plots of land near the village of Střítež near the town of Kaplice. Mapping was carried out on each plot in a defined square for a period of four months. In the squares with the presence of this invasive plant, the size and width of the leaf rosettes of the plants were recorded. Subsequently, the species distribution of other plant species was determined. The measured results were recorded in graphs and averages. Finally, suggested actions on plots with this invasive plant are presented. Grazing with higher intensity and frequency, and multiple mowing outside the pasture, seems to be the most suitable method of sage-grouse control for the study site.
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Vliv konzumace stravy obohacené o pokrutiny z ostropestřce mariánského na hodnoty celkového bilirubinu, glukózy a triacylglycerolů
KOUBKOVÁ, Diana
The bachelor´s thesis on "The impact of consuming a diet enriched with milk thistle seeds on the levels of total bilirubin, glucose and triacylglycerols" focuses on the issue of liver diseases and possible subsequent treatment, with Silymarin primarily serving as a preventive measure against liver ailments. Nowadays, liver damage is becoming an increasingly common problem, potentially attributed to inappropriate dietary habits and an unhealthy lifestyle leading to a rising number of obese individuals. Excessive medication intake can also pose a risk. The effects of various hepatoprotective agents have been studied by scientists worldwide. The influence of Silymarin is relatively well-researched, with its hepatoprotective properties confirmed. The aim of this study was to determine whether this positive effect on the liver persists even when Silymarin seed powder is used in baking bread. In the research section of the Bachelor's thesis, blood samples from laboratory mice were obtained, and the serum was subjected to subsequent biochemical analysis. The data collected was processed into tables, calculating the average concentrations of total bilirubin, glucose, and triacylglycerols, along with standard deviations. Statistical evaluation was performed using ANOVA testing, determining the level of significance (p). It was found that paracetamol does not significantly alter the levels of total bilirubin and triacylglycerols, whereas a decrease in glucose levels was observed with paracetamol administration. When observing changes over the feeding period, total bilirubin remained largely unchanged, as did glucose levels. Triacylglycerol levels were higher in mice fed for 90 days compared to those fed for 14 days. The results of the Bachelor's thesis can serve as a source of data and be utilized for further research studies.
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Reprodukční užitkovost v chovu prasnic
AIDELOMON, Emmanuel Onosimuan
The objective of this study was to analyse the level of reproductive efficiency of sows. Data of 1013 records of sows between 2019 to 2022 from a commercial herd were collected and analysed (Large White and cross between Large White and Landrace sows). Sows ranged from parity 1 to 7 with the number of parity grouped into 1-2 (1); 3-5 (2); 6-7 (3). Sows were raised in well-ventilated pens and were vaccinated according to the veterinarian's recommendations and sows were well-fed to meet their nutritional requirement. Water was available ad libitum via the drinking nipple system. All-born piglets and live-born piglets were analysed by monitoring the influence of parity, season at first conception, genotype, age at first farrowing, gestation length, farrowing interval, weaning-to-conception interval, year of conception and boar. Data were analysed using Statistika.12, TIBCO software package. Significant influence (P < 0.05) was observed between parity group 1 (parity 1-2) and parity group 2 (parity 3-5) for all-born piglets and live-born piglets with the highest value at parity group 2 (parity 3-5) and decreasing thereafter. Prolificacy (all-born piglets and live-born piglets) appeared highest in animals during the summer months and the lowest in autumn (statistically unconfirmed differences). Crossing sows between Large White and Landrace produced the highest number of all-born piglets, and sow Large White produced the highest number of live-born piglets. Crossing sows between Landrace and Large White produced a statistically lower number of piglets. Prolificacy at 361-381 days (age of first farrowing) was significantly different from < 361 days. There was reduction in number of all-born piglets and live-born piglets for above > 381 days when compared to 361-381 but it was not different statistically. Higher value was recorded for gestation length of 114 days compared to 115 days in all-born piglets and live-born piglets (but no significant influence). The mean of all-born piglets and live-born piglets shows that the larger the litter is, the shorter the gestation length becomes. Farrowing interval for 146 days had a high mean value for both all-born piglets and live-born piglets compared to 147 days but no significant influence. Weaning to conception interval for 4 days is significantly different from 5 days in all-live born piglets. The highest average for all-born piglets and live-born piglets was recorded in 2022 and the lowest was recorded in 2019. Result for 2022 was significantly different from 2019 and 2020 results. In conclusion, this study showed that sow parity, genotype, age at first farrowing, weaning to conception interval and boar can be used as indicators of reproductive performance. Furthermore, this study has provided the basis for future development of a benchmarking tool to monitor and improve productivity in sow herds.
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Tax Fraud in the Field of Value Added Tax
KOUTOVÁ, Tereza
The subject of this thesis is to identify the basic principles of tax fraud in the field of value added tax, with a focus on carousel fraud, and to identify the possibilities for companies to avoid such fraud. In addition to defining the operation of the classic carousel frauds and their individual members, the thesis also focuses on their possible solutions or the tax authorities' tools to detect and prove them. In the practical part, the development of the VAT gap, which is an estimate of the size of VAT fraud, has been assessed for the period from 2016 to 2020. On the basis of the results obtained, a positive development of the VAT gap in the EU was noted, while in the Czech Republic it did not show a clear trend, however, the last monitored year brought a significant decrease and the Czech Republic is slightly above the EU average. Furthermore, the relationship between the size of the VAT gap and the factors that could influence it was analysed by using correlation analysis. The factors analysed included the number of VAT payers, the level of GDP or household consumption expenditure. However, the correlation analysis did not confirm the statistical significance of any of the correlation coefficients. The next part of the thesis is devoted to the analysis of a model example of carousel fraud, in terms of cash flow of each member of the fraudulent chain and the procedure of the tax administration for each member, in order to evaluate the profit of the participants from the chain fraud. The results then showed that the missing trader almost always benefits due to its untraceability by the financial administration, the buffer company should have a high financial incentive to take the risk, and the broker then relies in most cases on the tax authorities failing to detect the fraud or to prove the illegality of the deduction.
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