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Experimental study of a control synthetic jet's efficiency
Němcová, L. ; Kopecký, V. ; Trávníček, Zdeněk
The present paper deals with an active control of jet flows by means of a system of synthetic jets. The control synthetic jet in one segment of the main round nozzle was measured by means of PIV. The strength of the control synthetic jet was quantified, relatively to the main jet, in terms of the ratios of their velocities, flow rates, and momenta. The results confirm efficiency of the present flow control method.
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Estimate VAT selection after the introduction of electronic evidence of sales in the Czech Republic from 2016
Píchal, Dominik ; Pikhart, Zdeněk (advisor) ; Zeman, Martin (referee)
The Bachelors Thesis focuses on the topic of the tax collection and other subjects that are related to the topic like underground economy, tax evasion and other instruments that lead to the efficiency improvement of the tax collection. Electronic evidence of taxes in Czech is the kind of the instrument that aims towards the increase of the tax collection and improvement of the control of the taxpayer. Comparation and analysis was used for its methodological basis. Analysis and comparison serves as the proof that the thesis, of the electronic evidence of taxes beeing an effective instrument, is correct. The merit of the thesis is an overall description of the chosen phenomena affecting the tax collection, description of the models of electronic evidence of taxes from abroad and most importantly description and analysis of the upcoming czech one.
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The Image of the Artist in Czech Feature Films after 1948
Šlingerová, Alena ; Klimeš, Ivan (advisor) ; Přádná, Stanislava (referee)
After the Czechoslovak coup d'état of 1948, the cultural politics of the Communist Party became the only power that should organize, regulate and evaluate cultural affairs. This brouht radical changes of the status of artists. That artists who belonged to the rank of intellectuals had to follow needs of the new kind of society. They accepted orders from above and their activity was strictly controlled. Proletarian amateurs and folk art were officially encouraged. The examples of the progressive art were found in the USSR and also among personalities from the history of the national culture. Cinematography, to which was placed a requirement of topicality, also presented the new image of the artist. The most noticeable results were reached in biografical films about our classics and films exposing folklore and cultural life of the working class. The integration of an intellectual artist into the new society became a pivotal theme in movies Písnička za groš and Nezlob, Kristino. As episodic characters, we can find also completely negative types of artists - enemies of that new society. This spectrum corresponds to a general typology of people that was used in art, journalism and public speech in general: mature, confused and totally inadaptable (designed to be displaced). Exeptional cases of...
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Depositary Services
Helcl, Tomáš ; Janda, Karel (advisor) ; Veselá, Jitka (referee)
The thesis deals with the functioning of depositories in the enviroment of the Czech market from the perspective of legislative and practical. The introduction is devoted to directives that make up a harmonized legal framework and the Czech legislativ, which specifically prescribes behaving of depositories. The main part is devoted to the depositary functions, such as operating in the Czech market conditions. This part of work is focused not only on the distribution of the depositary market, but also on the collected amount of the fees, the efficiency of regulation in the real market enviroment and in the importace of depositories in the Czech market. The final section is devoted to the findings, including the final assessment of the depositaries. As a first of its kind, this thesis gives a comprehensive view of activity of depositories and their importace for the Czech market, as the depositaries represent entities that control whether funds act in accordance with the legislation. Depository oversees as to prevent fraud and to qualified investors or collective investment contributed to the further development of the capital market, which is necessary for the further development of all economic sectors.
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Information content in vocalization of guinea pigs (Cavia porcellus): individual distinction and recognition of predators
Baklová, Aneta ; Baranyiová, Eva (advisor) ; František, František (referee)
Guinea pigs represent domesticated precocious rodents which became common pets. From the first day after birth they are fully vocal. This thesis was devoted
to the vocalization of pups. The aim of the thesis was to 1) determine the age when the vocal individuality in whistle sound is demonstrable; 2) test possible ultrasonic signals emitted by young guinea pigs; 3) study the antipredator reactions and alarm calls to aerial (bird of prey) and terrestrial (dog) predators and human (control test).
A total of 16 guinea pig pups were tested for vocal individuality, 28 pups
for ultrasonic vocalization and 27 adolescents for predator recognition. When testing vocal ontogeny during the first 9 days after birth, I observed changes in temporal, frequency and parameter of intensity . When I test vocal individuality by cross-validated discriminant function analysis (DFA) based on ten acoustic parameters, calls were classified to correct animals with following success: day 1 = 71.9%, day 3 = 58.8%, day 5 = 53.10%, day 7 = 50.60% and day 9 = 63.10%. The highest frequency in whistle was 30.03 kHz. In predator discrimination reactions as freezing, fleeing and vigilance were observed. In the presence of dog, guinea pigs reacted for the longest time and most frequently by freezing. When confronted with a bird of prey, I observed for a longest time and most often fleeing and then freezing. When exposed to a human, guinea pigs showed mostly vigilance. Almost no vocalization was observed except for two events
of alarm calls - drrr as in the presence of dog and chirrup as reaction to bird of prey.
The following conclusions can be drawn from the presented results: 1) vocal individuality of guinea pigs is demonstrable immediately after birth and the rate
of individually different vocal parameters changes with age; 2) guinea pigs are able
to produce sound up to 30 kHz, i.e. within the ultrasound range, but signals of high frequencies are not crucial for their communication; 3) guinea pigs discriminate between terrestrial and aerial predators, but they emit alarm calls rather rarely.
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Project management in selected company
POKORNÝ, Radek
This work deals with project management in chosen company. It has two parts. The first part is theoretical, which is focused to theoretical treatment of the subject. It explains what is the project, management of projects, organizations of projects, processes of project management, what is target of project, communication, control, changes and risks and more. In the practical part I focused to concrete company and project management and than I analyzed concrete project. Name of the mentioned company is OHL ŽS, a.s. It is company from Spain, which acts all over the world. In the Czech Republic has the base in Brno. This company has several divisions and every of them is focused to different professional architecture. I have chosen division of structural engineering. This division builds all kinds of buildings. It could be construction of new buildings or reconstruction. To analysis of chosen project I used various business documents, contracts with investor or suppliers, document which include billing, timetable. I especially used my experience with projects of this company, and I was part of this project. Name of this project is Reconstruction of cladding including replacement windows and insulation. During the analysis of project I found a couple major gaps. If we could avoid these gaps, we could increase profit. These graphs is especially in management. At the beginning there were appointed two temporary construction managers. They doesn't care about result project, because they knew that they will not be to the end of the project. These gaps are because there is missing motivation system. Project manager can´t affect results of employees. It doesn´t depend on performance of employees, they always has the same wages. For elimination of these gaps I proposed several suggestions for improvement. The first suggestion is modification and extension of motivation system. New motivation system include personal evaluation. This evaluation depends on performance of employee. The second part is bonus from over profit. The next suggestion is make a new working position. This position would take care about controlling and project documentation. During the building project, especially at the end is construction manager very busy. It depend of decision of construction 63 manager what kind of activity will have prefer. Project documentation and administration or controlling of building works. If they are doing everything correct and technology are respect. Suggested position would take care about invoices, real work, which is done, project documentation, controlling of budget. The third suggestion is purchase of small machinery such as chipping hammers and drills. At this time they rent all devices. Rent is higher than purchase price. The last suggestion is use credit to restoration of fleet. At this time they have obsolete fleet, because the bought all cars by cash. It is not conveniently.
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The need for security and safety in connection with a planned surgery with the patient's perspective and nurses
BOHDALOVÁ, Jaroslava
A planned operation performance always affects patient´s needs for assurance and safety. It is important to provide necessary information connected with the planned operation performance itself so that the patient can feel assure and safe. The key role for the patient and her/his needs for assurance and safety is in general nurse´s hands because she is the closest person to the patient and can help to inspire her/his needs for assurance and safety with konfidence best through the aid of her knowledge and skills that she should have as well as through the aid of her attitudes. The target of the thesis was to find out how a planned operation performance affects patient´s needs for assurance and safety and how a general nurse inspires patient´s needs for assurance and safety connected with a planned operation performance with confidence. The following research questions were stated: How does a planned operation performance affect patient´s needs for assurance and safety? How does a general nurse affect patient´s needs for assurance and safety connected with a planned operation performance to inspire her/him with confidence? What is insufficient in filling patient´s needs for assurance and safety before a planned operation performance? How can a general nurse help a patient control her/his fear and state of anxiety related to a planned operation performance? The method qualitative research with the use of depth interview was used to figure out the investigation. The respondents were willing to record the interview which were verbally rewritten and then subjected to the contents analysis by the method paper and pencil. From the research it is clear that a planned operation performance affects patient´s needs for assurance and safety in a negative way disregarding to her/his previous experience. Patient´s worries and negative feelings can be eliminated by a general nurse who treats her/him as equal, taking up an individual approach, informing her/him about all performances and proceedings, having a calming and welcoming way of communication, using empathy and listening as well as trying to meet patient´s wishes according to her possibilities. The research reveals the advantage of patients´ readiness for planned operation performances. Patients can learn it in the framework of educational proceeding in the out-patients´ department at the same time when they learn that they are going to be operated. The research also shows that general nurses do not have enough knowledge in the sphere of therapeutical communication. The results indicate that it would be suitable to start educating patients as soon as it is known how their disease will be solved and treated in order to reduce the negative impact of surgical treatment to patients´ needs for assurance and safety. General nurses should complete their knowledge and skills to be able to help patients to cope with their difficult life-situation. On the basis of the research investigation and after the consultation with the senior nursing officer, the training course will be organized. The topic of the training course will concentrate on communication with patients before planned operation performances with a view to therapeutical communications and therapeutical interviews. Other discovered facts, for example, the lack of information provided to patients and possibilities regarding better patients´ readiness for planned operation performances will surely be solved by the hospital management.
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Ability of dogs to discriminate human odor exposed to chemical detergent
Čajágiová, Martina ; Vyplelová, Petra (advisor) ; Jaroslav, Jaroslav (referee)
In the recherche part of our thesis we familiarize ourselves with the human odor, theories of its origin, definition, anatomy of human skin and odors, composition of individual human odors and with odor secretion. We also look closer on the topics of odor absorbent and its use in the world, the transmission of odors to odor sensors and securing of scents. This section of our thesis discusses the resistance and survival abilities of odor, scent identification method and its history, organic acids, and defines the application of laundry detergents and ultrasonic washers. Aim of our thesis was to verify the relevance of the use of chemical detergents in the purification process when working with scents. We tried to verify the ability of detergents to degrade the human scent on odor absorbents to such an extent, that specially trained dogs would not be able to identify it. Our experiment was following a precise determination methodology. In the first phase samples were collected from the hands of targeted persons to a scent carrier - a metal cylinder (extirpate odour), by one researcher. In the second phase samples were collected from the body to a textile carrier, by another researcher. The metal scent carriers were processed. Some of them were left as they were (control sample) and some were exposed to chemical detergents with and without usage of an ultrasonic washer.
In the experiment where we tried to identify the odour samples, six bitches of German shepherd were used. They were specially trained for odour identification. Each dog was let three times to identify the target scent exposed to a detergent and three times to identify the target scent not exposed to a detergent. Target smell was randomly deposited between other samples and its position was changed, so that the handler did not know its position and thus was unable to affect the work of his dog. The indicator of positive identification was a sign the dogs were taught - to sit or lay in front of a sample.
Any dog was unable to identify the scent which was exposed to chemical detergent and all dogs identify the scent unexposed to a chemical detergent. Our experiment has shown that the use of chemical detergents in the purification process when working with scents is relevant to the degradation of individual human scent.
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Effect of brassinosteroid and Atonik on growth of onion in different moisture conditions
Pařízková, Lada ; Doležalová, Jitka (advisor) ; Augustinová, Ludmila (referee)
Summary The aim of this study was to investigate the effect of synthetic brassinolide and Atonik, as a growth promoter supporting growth and development of plant that have been grown in different moisture conditions. For experiment were used two species of onion ('Alice'and'Lusy') which had been treated during the growth with synthetic brassinolide solution in concentrations 1.10-9 mol.l-1 and 1.10-11 mol.l-1 and 0.1% concentration of Atonik solution. For controlling was sown untreated variant. Average plant height and later diameter of the neck were observed and recorded during the experiment. Results showed that the product Atonik had in both variants positive influence on plant growth in deficit moisture conditions. Its effects have been later inconclusive or inhibitory. Brassinosteroid had positive effect on growth under optimal moisture conditions in "Lusy's" case and in stressful conditions in "Alice's" case. Brassinostreroid, unlike Atonik product, prevailed in neck diameter efficiency. In both cases, brassinosteroid had more positive effect on average yield in optimal moisture conditions. In deficit moisture conditions had Atonik product more positive effect on the yield of onion in both cases. To verify the results, it is necessary to repeat the experiment several time.
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