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Simulation scenarios in NS2 demonstrating knowledge of BGP and multicast
Sobotka, David ; Komosný, Dan (referee) ; Jeřábek, Jan (advisor)
Network simulation can be beneficial not only in solving problems while applying new standards or recommendations, but also primarily an aid in understanding and verifying knowledge of behaviour of communications protocols. The aim of the thesis is to create illustrative tasks in the simulation environment, Network Simulator 2 (NS-2), which are designed to verify the behavior of BGP and multicast. Created tasks are above all devoted to BGP, which is the cornerstone of routing information of all IP networks conglomerate, the Internet. The first two tasks designed for BGP use the implementation of ns-BGP and the remaining are based on the implementation of BGP++. The tasks verify both the function of basic attributes of the protocol, influencing the decision making process when routing information (AS_PATH, MED, LOCAL_PREF, WEIGHT), and furthermore the methods or parameters affecting the efficiency of the process of routing and a reduction of excessive network traffic (BGP confederation, routing, aggregation, MRAI). The last task regards multicast, more specifically the type of DM, which is a group of the so-called Dense Mode. The task illustrates how to join/leave groups and spread messages of types GRAFT and PRUNE under a constant data stream.
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Study of mulch-laying machines
Derka, Lukáš ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor’s thesis of research type deal with study of agricultural and forestry mulch-laying machines. Mulching machines carried by tractor machine. The analyses will be aimed at constructive processing, technical parameters and working conditions of machines with working part horizontal axis of domestic and foreign manufacturers.
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Biometrie a kondice prasete divokého (Sus scrofa) s ohledem na vegetační stupňovitost
Procházková, Pavla
The content of this thesis is the evaluation of biometric data of wild boar (Sus scrofa L.) collected in 2014–2019 at sites throughout the Czech Republic. The data evaluation sought to relate the observed body parameters to forest vegetation stages. Emphasis was placed on the parameter of fat thickness as an indicator of body condition, and body parameters of weight after emergence, body length and chest height were also worked with. Differences in body parameters based on age, sex and forest vegetation stages were sought and statistical significance of these factors was tested. A weak correlation was found between some body parameters in the piglet category. Furthermore, fat thickness was found to be related to the sex of individuals older than 12 months. Fat thickness increased with age in females at all age classes while males reached their total fat height at the end of the first year of life. There was a strong correlation of body length parameter with weight and chest height of individuals.
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Hodnocení faktorů ovlivňující akcelerační vlastnosti vozidel
Cienciala, František
This thesis focuses on the description of factors influencing vehicle acceleration and examines their effect. The theoretical part of the thesis targets resistances affecting vehicle during its motion, during both uniform motion and acceleration. Furthermore, the thesis is devoted to the transfer of the driving force from the engine to the wheels and from the wheels to the road surface, in addition to the description of various types of engines and gearboxes. The experimental part of the thesis examines selected factors notably weight, type of drive and methods of shifting that affect acceleration and its movement. For each of aforementioned factors, the unique measurement method was established using an accelerometer installed in the vehicle. The results were then processed into graphical form and interpreted. As the results of the experimental part revealed, all selected parameters have a significant impact on the vehicle acceleration. The effect of the weight could be observed primarily on acceleration values while the type of drive and methods of shifting affects predominantly the course of the acceleration.
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Porovnání různých způsobů odchovu telat v období mléčné výživy u holštýnského skotu
Adámek, Jiří
The bachelor's thesis deals with the comparison of different methods of rearing Holstein calves in the period of milk feeding. The research was carried out in the Mír Agricultural Cooperative with headquarters in Ratiboř and on farms in Pržno and Hošťálková. On farm in Pržno, the calves are housed in a group pen with milk feeding machines Urban Alma Pro. On the farm in Hošťálková, it is the most common for the calves to be housed in individual outdoor sheds. Thesis compares the weight of calves at birth, the weight of calves at weaning and the average daily gain compering individual farms. Furthermore, the consumption of milk feed mixture is measured in the Urban Alma Pro system on a farm in Pržno. Based on my own findings, I can state that on the farm in Pržno the weight of calves at birth was lower also the weight of calves at weaning and the average daily gain was higher than on the farm in Hošťálková. The average consumption of the milk feed mixture using the Urban Alma Pro system was lower compared to the optimal average consumption. This could be caused by unfamiliarity of the new environment and possible diseases contracted by calves. The rearing of calves on the farm in Pržno was therefore more efficient for agricultural production, more beneficial from the health point of view of the calves, less financially demanding and more natural for the calves thanks to the Urban Alma Pro system. The main advantage is the possibility of drinking the milk mixture six times a day in smaller doses. In the normal rearing of calves on the farm in Hošťálková, it is at best possible to feed the calves with milk feed mixture only twice a day.
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Studium faktorů ovlivňujících stanovení energetického příjmu a výdeje u koní
Slámová, Kateřina
The diploma thesis deals with the determination of the energy contained in the feed ration of horses and the evaluation of whether the energy supply is sufficient in regard to the maintenance energy requirements and their workload. The research was conducted for 28 days in 6 horses of warm-blooded breeds - 5 mares and 1 gelding with an average weight of 561.5 ± 36.6 kg and BCS (Body Conditional Scoring) grade 5 to 6. Control weighing was compared with the formula that uses body measurements to calculate horse weight. The estimated weight determined by the calculation seems to be underestimated by an average of 58.05 ± 15.69 kg. Based on the determination of weight by weighing, 5 formulas for determining maintenance energy were assessed. The average maintenance energy of horses is 73.2 MJ ± 4.42 MJ, i. e. 130 kJ/kg in weight. To calculate energy expenditure during physical exercise, 5 formulas were used using data obtained from the Polar Equine RC3 GPS device (heart rate, distance, speed, time). According to the results, the individual energy needs for exercise (DE) in horses increased from 7.30 ± 2.34 MJ/day to 20.05 ± 3.17 MJ/day, depending on the formula. Horse´s intake of digestible energy (DE) in feed ration was an average of 102 ± 7.94 MJ per day. In the final comparison, the combination of the formula from Zeman et al. (2005) for the maintenance and formula for exercise based on Harris (2001), was the most suitable for determining the necessary digestible energy (DE) intake from the feed ration.
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Surface depressions of the bony pelvis in relation to childbirth and pregnancy
Medvedevová, Elina ; Rmoutilová, Rebeka (advisor) ; Brůžek, Jaroslav (referee)
This bachelor's thesis describes the depressions of the pelvic bony surface, which are described in the literature as "indicators of childbirth", and summarizes the data on whether pelvic bony depressions can be associated with pregnancy and childbirth, and what other factors may be involved in the formation of these depressions. The "birth indicators" include the preauricular grooves and the dorsal fossa of the pubic bone. Historically, they have been attributed to the course of pregnancy and childbirth when physiological and hormonal changes occur. However, more recent studies and new research methods have attributed the development of these depressions not only to pregnancy but also to pelvic shape, age, increased BMI of the person, physical activity, or medical complications. A variety of factors can contribute to the development of bone surface depression in both women and men. For this reason, so-called "birth indicators" cannot be considered a reliable indicator of completed pregnancy and childbirth, and secondary use of knowledge of these depressions in sex estimation, especially by application in forensic sciences. However, it should be noted that the difference in the frequency of depression between the sexes is significant, as the incidence of such depression is more frequent and marked...
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Construction of workout machines, their mechanisms and use in practice
SVINTEK, Lukáš
In the introduction of the diploma thesis, a current view of the issue of strengthening and strength machines is given. In the theoretical part, a general overview of the solved problem is made from available information sources. In the practical part, machines are divided according to various criteria with a focus on the most used machines. Then the work focuses on the construction of selected types of strength machines, safety features and sources of load forces. The next part consists of research in the form of a questionnaire intended for fitness centers. Based on the answers, a proposal to improve the problematic parts. This is followed by testing of the proposed design variants on a test device. The conclusion of the work is a summary of the facts found and their interpretation.
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Waste flows modelling and assessment of their treatment
Kolátor, Matyáš ; Smejkalová, Veronika (referee) ; Pluskal, Jaroslav (advisor)
The thesis deals with the description, analysis and reconstruction of waste evidence. Nowadays, more and more emphasis is put on the issue of waste management and its efficient use. Legislation has set demanding targets for increased waste recovery and the development of a circular economy. In order to achieve these objectives, it is necessary to plan and organize the structure of waste management strategically. Important decisions in the field of waste management are based on data and the production and processing of waste. The quality of waste data has a major impact on the success of the process. The aim of this thesis is to describe the system of record, but also the possibilities of improving and reconstructing invalid data. The core of the work is the testing and improvement of a data reconciliation tool REVEDATO developed at the Institute of Process Engineering. The computational tool is based on the mathematical apparatus of data balancing, for which the correct definition of the weights is crucial, which will be the main subject of the work.
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Reprodukce a management chovu vybraných plemen masného skotu
NÁVAROVÁ, Eliška
The literature review presented in the bachelor thesis focuses on the ma-nagement and characterization of cattle breeding, specifically the Aberdeen Angus, Limousin, and Charolais breeds. The following chapter describes ecological ag-riculture, as the thesis includes companies that breed cattle in organic farming. The upcoming chapter of the thesis centers on the reproduction of beef cattle breeds. The aim of this thesis was to conduct a comprehensive and continuous analysis throughout the year by which to evaluate the level of reproduction and ma-nagement. The practical part focuses on evaluation the course of delivery, pregnancy diagnosis results, weight of calves at birth and weaning, and the results from semen examination. The data for this thesis were collected from six companies using ac-companying lists of cattle, animal husbandry records, and bull spermograms. In the conclusion of the thesis, the results are summarized and evaluated. Companies specializing in Limousin and Charolais breeding include their bulls in herd for approximately two months. The company that focuses on breeding Aberdeen Angus has its bulls in herd for most of the year. More frequent occurrence of difficult births was recorded for the Limousin breed at the Rolnická Skalná company, and their number significantly exceeded the average incidence of complicated births for this breed. A higher incidence of di-fficult births was also analyzed for the Charolais breed at the SPO-ZEM Nový Kos-tel company. The number of difficult births recorded at the company specializing in breeding Aberdeen Angus slightly exceeded the breed's average. The highest success rate of pregnancy was found in the companies SPO-ZEM Nový Kostel, Farmy Třebeň, and Anonymu. The Naturland company achieved unsatisfactory levels of pregnancy rates. Companies breeding Limousin achieved lower birth weights, nonetheless the values were satisfactory. Weaning weights of calves in these companies were suita-ble. Companies focused on breeding Charolais achieved unsatisfactory average birth weight values but excellent weaning weight values. For the Aberdeen Angus breed, satisfactory average weaning weight was achieved for heifers, while the weight of bulls was lower than usual for the breed. From the total of 12 monitored bulls, all were fertile at the beginning of the breeding season, infertility was diagnosed in three bulls, and one bull had a high number of immobile spermatozoa. In these bulls, a treatment was applied, which was found to be effective only in two breeding males after the third collection. Bulls for which the treatment was ineffective were removed from the breeding pro-gram.
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