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Point Pleasant bridge collapse - casual analysis of the accident
Jagoš, Jiří ; Němec, Karel (referee) ; Válka, Libor (advisor)
The bachelor thesis is focused on the analysis of the causes of the accident of the Silver Bridge, which occurred in 1967, forty years since the introduction of the bridge to the traffic. In the work are discussed in detail all possible causes of the collapse of the bridge on the basis information and facts mentioned both directly in the inquiry reports of committees, as well as in documents and literary sources, dealing with material analysis of the structural nodes of the wrecked bridge. The work carried out critical analysis of the available and relevant information about the crash. The bachelor thesis outlines also the possible causes of the fall and collapse of the bridge from structural point of view and from terms of the material.
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Detection of car accident and collapse by Android smartphone
Repčík, Tomáš ; Ronzhina, Marina (referee) ; Maděránková, Denisa (advisor)
Bachelor thesis “Detection of car accident and collapse by Android smartphone” describes theoretical basics of a collapse and a car accident. With help of 23 volunteers, data has been collected from daily tasks, simulating collapses and driving. Based on that a model with capability to classify a car accident was created. The detection of collapse uses neural network with accuracy of 86 %. The detection of car accident uses accelerometer and GPS. To indicate the car accident a high acceleration created by the accident and absence of moving car is required. Next, the application was tested by all available data and by the volunteers in daily life, who used the application for 520 h.
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Cavitation onset by liquid acceleration
Mračko, Patrik ; Burda, Radim (referee) ; Rudolf, Pavel (advisor)
The main goal of bachelor’s thesis is description of complex phenomenon of cavitation caused by acceleration and design of experiment focusing on its observation. Thesis consist of two parts. Theoretic research focusing on basic information about cavitation, its formation and significance. Second part is design of experimental observation with help of high-speed camera, evaluation of possible complications which may occur and their solution. Conclusion proposes possible application for research in area of wastewater treatment.
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The collapses of distant worlds
Kozina, Václav ; Halbich, Marek (advisor) ; Budil, Ivo (referee) ; Horák, Miroslav (referee)
Diploma thesis "The collapses of distant worlds" deals with interpretations of the conquista of Mexico and Peru (i.e. the conquests of Aztec and Inca empires). The basic question, which all the works considering the conquista deal with, is: how could the arrival of small groups of Spanish conquerors disrupt great Indian empires in such a short time? My thesis has two main goals: to define the typology of interpretations of the conquista and offer my own interpretation which places emphasis on the role of mentalities and cultural complexes. I have distinguished four basic types of interpretations of the conquista: 1. the metaphysical ones; 2. the technological ones; 3. the environmental ones; 4. the mentalistic ones. I used the conception of mentalities (derived from the work of Lucien Lévy-Bruhl) and the system conception of cultur, where I worked with the term "cultural complex" especially. After my approach the conquista represented the clash between two different types of mentalities: the archaic one (which Indian societies featured) and the literary one (which was developed in European societies). Differences in mentalities and cultural complexes provided advantages to the Spaniards in their struggles with the Aztecs and the Incas. So finally the Spanish conquest of Indian empires is...
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Cavitation onset by liquid acceleration
Mračko, Patrik ; Burda, Radim (referee) ; Rudolf, Pavel (advisor)
The main goal of bachelor’s thesis is description of complex phenomenon of cavitation caused by acceleration and design of experiment focusing on its observation. Thesis consist of two parts. Theoretic research focusing on basic information about cavitation, its formation and significance. Second part is design of experimental observation with help of high-speed camera, evaluation of possible complications which may occur and their solution. Conclusion proposes possible application for research in area of wastewater treatment.
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Detection Of Collapse By Android Smartphone
Repčík, Tomáš
The bachelor’s study is focused to design and build an Android application for the detection of collapse, which is enhanced by new techniques coming from a sphere of the artificial intelligence modified for smartphones. The application uses accelerometer outputs which are in suspicious moments analysed by the neural network. The artificial intelligence is based on simulated events of collapse and events which resemble a fall of a person. The study describes data collected from 20 people. To provide the best results of training, the most convenient and useful features were selected by multiple approaches. Total accuracy of the collapse detection reached 93 %, with 9 % and 13 % of false positive and false negative detections, respectively.
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Detection of car accident and collapse by Android smartphone
Repčík, Tomáš ; Ronzhina, Marina (referee) ; Maděránková, Denisa (advisor)
Bachelor thesis “Detection of car accident and collapse by Android smartphone” describes theoretical basics of a collapse and a car accident. With help of 23 volunteers, data has been collected from daily tasks, simulating collapses and driving. Based on that a model with capability to classify a car accident was created. The detection of collapse uses neural network with accuracy of 86 %. The detection of car accident uses accelerometer and GPS. To indicate the car accident a high acceleration created by the accident and absence of moving car is required. Next, the application was tested by all available data and by the volunteers in daily life, who used the application for 520 h.
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The collapses of distant worlds
Kozina, Václav ; Halbich, Marek (advisor) ; Budil, Ivo (referee) ; Horák, Miroslav (referee)
Diploma thesis "The collapses of distant worlds" deals with interpretations of the conquista of Mexico and Peru (i.e. the conquests of Aztec and Inca empires). The basic question, which all the works considering the conquista deal with, is: how could the arrival of small groups of Spanish conquerors disrupt great Indian empires in such a short time? My thesis has two main goals: to define the typology of interpretations of the conquista and offer my own interpretation which places emphasis on the role of mentalities and cultural complexes. I have distinguished four basic types of interpretations of the conquista: 1. the metaphysical ones; 2. the technological ones; 3. the environmental ones; 4. the mentalistic ones. I used the conception of mentalities (derived from the work of Lucien Lévy-Bruhl) and the system conception of cultur, where I worked with the term "cultural complex" especially. After my approach the conquista represented the clash between two different types of mentalities: the archaic one (which Indian societies featured) and the literary one (which was developed in European societies). Differences in mentalities and cultural complexes provided advantages to the Spaniards in their struggles with the Aztecs and the Incas. So finally the Spanish conquest of Indian empires is...
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The parasitic microorganisms in immunodeficient and healthy population of honebees (Apis mellifra)
Bičianová, Martina ; Hubert, Jan (advisor) ; Titěra, Dalibor (referee)
Immunodeficient honey bee (Apis mellifera) colonies suffer from broad range of parasites including eukaryotic protozoa. Despite this fact, the eukaryotic parasites are still poorly documented in the Czech Republic. The presence of eukaryotic parasites (Nosema ceranae, Nosema apis, Crithidia mellificae and Apicystis bombi) was observed in different apiaries in the Czech Republic. The samples were taken in 9 apiaries in 53 beehives during the 2014/2015 season. From each beehive, 10 adult of honey bees were taken from the peripheral comb in triplicate. DNA was isolated from every sample of honey bees. The parasites were detected by polymerase chain reaction (PCR) with specific primers. The treatment fall of parasitic mite Varroa destructor was obtained from beekeepers for season of 2014. Crithidia mellificae was detected by 5 types of specific primers (SEF, SER; SSU, SSU rRNA, Cyt b, Tryp cyt b) and positive amplicons were cloned and sequenced. The obtained sequences were compared with GeneBank and showed similarity from 98-100% to sequences of Lotmaria passim (Trypanosomatid). Crithidia mellificae was not detected. L. passim had prevalence of 79,2% and is reported in the Czech Republic for the first time. Primer Tryp-cyt b is recommended for the routine detection of L. passim. Nosema ceranae was...
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Temporary consciousness disorders in providing the prehospital urgent care
Tyčová, Monika ; Marsová, Jana (advisor) ; Pekara, Jaroslav (referee)
The abstract The temporary state of unconsciousness (i.e. collapse, syncope) is a common reason for the emergency medical service intervention. Quantitative consciousness disorders affect patients of all ages. Sudden unconsciousness associated with a fall is usually dramatic for the laymen, but in most cases, this is a non-serious state of the noncardiogenic etiology, also called fainting. These states usually do not require urgent treatment. In contrast, cardiac syncopes, which occur mainly in the older age groups, are less common but have a significantly worse prognosis. Untreated, can result in sudden death of the patient. Mostly these are the collapses conditional cardiac arrhythmias. They account for about 10-20% of all states of collapse and have a very high mortality. Sudden temporary fainting requires careful physical examination and a thorough anamnesis within the first contact. Based on the results, in about half the cases it is possible for the cause of the collapse to be presumed. Though it is not possible to determine the definite cause of the collapse with certainity within the prehospitalurent care, therefore the patient is transported for the physical examination to a medical facility. They are then examined internally, especially cardiologically, and with usage of the adequate investigative...
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