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Network Architecture and Interconnection of Embedded Systems
Trchalík, Roman ; Drábek, Vladimír (referee) ; Srovnal, Vilém (referee) ; Švéda, Miroslav (advisor)
The thesis focuses on the architecture of embedded systems. It summarizes the current state of accepted standards from IEEE 1451 family, which deals with creating an environment for the sensors and their involvement in various networks. These standards describe the open, network-independent communication architecture for a sensor-based system. One of the main outcomes of this work is the architectures presented as case studies, which can be used as design patters for embedded applications. They are demonstrated on ZigBee technology suitable mainly for small devices with very low power consumption. Based on these studies the new design of universal gateway was proposed. Its major advantage is that it allows interconnection of the endpoints based on different sensor network technologies. Additionally, the thesis deals with modifying the routing protocol of ZigBee network in order to reduce power consumption required to transmit one data packet.
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Optimization of network flow monitoring
Žádník, Martin ; Lhotka,, Ladislav (referee) ; Matoušek, Radomil (referee) ; Sekanina, Lukáš (advisor)
The thesis deals with optimization of network flow monitoring. Flow-based network traffic processing, that is, processing packets based on some state information associated to the flows which the packets belong to, is a key enabler for a variety of network services and applications. The number of simultaneous flows increases with the growing number of new services and applications. It has become a challenge to keep a state per each flow in a network device processing high speed traffic. A flow table, a structure with flow states, must be stored in a memory hierarchy. The memory closest to the processing is known as a flow cache. Flow cache management plays an important role in terms of its effective utilization, which affects the performance of the whole system. This thesis focuses on an automated design of cache replacement policy optimized to a deployment on particular networks. A genetic algorithm is proposed to automate this process. The genetic algorithm generates and evaluates evolved replacement policies by a simulation on obtained traffic traces. The proposed algorithm is evaluated by designing replacement policies for two variations of the cache management problem. The first variation is an evolution of the replacement policy with an overall low number of state evictions from the flow cache. The second variation represents an evolution of the replacement policy with a low number of evictions belonging to large flows only. Optimized replacement policies for both variations are found while experimenting with various encoding of the replacement policy and genetic operators. The newly evolved replacement policies achieve better results than other tested policies. The evolved replacement policy lowers the overall amount of evictions by ten percent in comparison with the best compared policy. The evolved replacement policy focusing on large flows lowers the amount of their evictions two times. Moreover, no eviction occurs for most of the large flows (over 90%). The evolved replacement policy offers better resilience against flooding the flow cache with large amount of short flows which are typical side effects of scanning or distributed denial of service activities. An extension of the replacement policy is also proposed. The extension complements the replacement policy with an additional information extracted from packet headers. The results show further decrease in the number of evictions when the extension is used.
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Effective using of potential of bilingual environment
HOVORKOVÁ, Eva
The dissertation thesis "How to use the potential of bilingual environment efficiently" endeavors to highlight bad as well as good practices in bilingual upbringing. Bilingualism represents at present a very topical issue. In connection with increasing globalization, the issue of learning of foreign languages is more and more emphasised. People living in mixed marriages have often no idea how to bring their children up. In many cases they take steps that lead to irreversible consequences. The theoretical part of the thesis gives a survey of bilingualism, the division and kinds of bilingualism and ways of its acquisiton. The theory is practically illustrated in the empirical part through various examples. 42 case studies have been carried out, which include characteristic and uncharacteristic respondents. The findings of the research are compared with the facts mentioned in the reference works. The aim of the dissertation thesis is to find out which educational methods should parents follow in bilingual education and which methods they should better avoid.
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The prevention of pathological occurence of burnout syndrome (an example of employer)
BLAHOVÁ, Nela
This bachelor thesis deals with the issue of burnout syndrome which is currently a very discuss frequent problem. The rate of working stress will be investigated in selected groups of staff in company COOP družstvo HB. The purpose of my thesis is to compare which group of staff is threatened by burnout syndrome the most. The work is focused on the economical aspects which are reflected particularly in human capital. There will be applied the quantitative research, concretely questionaire research. Based on the results of questionaire research will be applied analytical method of the job evaluation, which is one of the main issues of human resources management. This application will be also recommendation for prevention for the company.
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Faktory ovlivňující poptávku po osobních automobilech v ČR
ČURILLOVÁ, Michaela
The bachelor thesis investigates factors which influence the demand for passenger cars in the Czech Republic. The theoretical part of this work is focused on basic terms and determinants which are important for the demand. Further it describes particular statistical methods, which are used for the analysis. The practical part contains the introduction to the automotive industry and the description of specific attributes of the demand for passenger cars. This part analyses factors which may have an effect on the demand for passenger cars in the Czech Republic. The main factors and the dependence are explained by applying econometric methods. Analyzing reveals these important factors: number of registrations of passenger cars, consumer prices of new and used passenger cars, consumer prices of fuel, population and income.The conclusion contains the summary of impacts on the specific demand.
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Application of Queueing Theory
VÁŇOVÁ, Eliška
The goal of this thesis was to understand Queueing Theory and use it for analysis of queueing system of hypermarket company PZV. Theoretical part is consists of basic iformations which is necessary to know for application of queueing theory. First chapter is about random variables, random event, random proces, stochastic and Poisson processes and Markov chains. Then was possible to describe queueing theory basic characteristics, parameters, analy-sis, classification and basic models. In the practical part was from the beginning analyze development of custo-mers going through cashier zone. On the base of analysis were customers divided into 4 groups. For these groups were counted characteristics and parameters, next was analyzed the system, but because data were too inaccurate, it was necessary to use different values for the groups and to count analysis for these values. The last step was to find number of cashiers to make system optimal. The result, it was 4 ca-shiers, was unfortunately not accurate. For better results it would be necessary to have more detail data.
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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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Distribution management in a large company (warehouse)
MICHALOVÁ, Jana
Distribution management in a large company. This Master´s Thesis examines the company Fruko-Schulz, s. r. o. This company has been making spirits. The goal is to map out the information and material flows toward the warehouse and from the warehouse. Subsequently, to analyze the current state of the company. Based on the information propose measures for improvement. In own work is described in detail and enterprise activities in a company. After ideas are designed to change. These proposals relate to distribution to the end customer through the gastronomical exhibitions and fairs. Other proposals are aimed at end users in the Russian market. Ideas for packaging or new products are designed, but is backed that do not make sense. Company Fruko-Schulz, s. r. o. sas a long tradition and reputation. But that's not enough, the competition is great and it isalso at a high level. The idea to focus on the Russian market is very good and there is great potential.
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Role and competences of the nurse in compared with Czech Republic and Namibia
KLYNCYPAROVÁ, Hana
Theoretical grounds The nursing profession among the professions and mission. Job nurse is one of very important professions. Nurse is an independent worker who has an irreplaceable role in the provision of care. In practice, certain roles, such as the role of a caregiver, the educationalist, communicator, the role of the lawyer, consultant, person, who brings the change, manager and researcher. These roles are constantly interacting and are interconnected. Health care has multidisciplinary and multiprofessional character. Although each of these professions contribute to care in a unique way, all share certain skills that are necessary to ensure the quality of care. Over the years there have been increasing professional skills and increase competencies. Expanded the range of services for which they previously did not have the competence or sisters had a written authorization of a doctor. This work is made up of theoretical and empirical part. The theoretical part provides an overview and information on the field of nursing and its history, dealing with the care system and education system in the Czech Republic and Namibia. The following list of findings roles and their importance in the nursing profession. The last part deals with the competencies of nurses in both countries. The aim of the thesis: The aim of the study was to determine the roles and responsibilities of nurses in the Czech Republic and Namibia. To to obtain this information were chosen research question what role nurses advocate in the Czech Republic and Namibia, and what are nurses in the Czech Republic and Namibia competence. Methods: To ensure the necessary data and information was chosen qualitative research through deep interviews. Nurses who were interviewed were from a hospital in the Czech Republic and nurses from hospitals in Namibia Keetmanshoop. All interviews were recorded on a Dictaphone andwritten down on the paper. Results: Recorded interviews were analyzed after writing down, we were using paper and pencil methods. Dialogs were openly coded. The analysis of these data arose following categories: the role of caregivers, the role of the teacher, communicator, the lawyer's role, the role of counselor, role of person who brings the change, the role of leader, manager's role, the role of researcher and categories of competence. Individual categories were assigned to subcategories. All informationwere are illustrated by clear diagrams of the individual categories. Conclusion: The Research shows that nurses have a general maintenance of the roles and competencies, actually both of sides, Namibia and Czech Republic also. both groups were mostly able to define roles in nursing care. Surprisingly czech nurses most failed in the role of the Advocate, while African colleague have proven to be very informed. Research also showed negative effect of paperwork and administration in czech system. Nurses having feeling they do not provide active care as they would be able to. Czech nurses seems also low initiative and ambitious, Czech nurses do not desire for increasing competence on the other hand African nurses, who have more competencies, want still more, than they already have.
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Work in social integration process of adults with intellectual disability.
SVITÁKOVÁ, Iveta
In my bachelor thesis, I dealt with the use of work activities in the process of social integration of adults with mental disabilities, the aim was to create, implement and evaluate regular work activities intended to a specific group of adults with mental disability and focused primarily on the development of social integration. The thesis is structured into six chapters. The first of them is focused on the definition of mental disability, characteristic of adulthood as an important developmental period in human life, and on adulthood of individuals with mental disabilities with a goal to find and identify the specifics that were needed to be taken into account when working with this target group of people. The following section is devoted to the social integration, its determinants and the environment in which it operates. I continued with the outputs in the third chapter, where I focused on key competencies, which them are the necessary basis for social integration, especially social and personal skills and communication skills, necessary basis. Targeted professional development can be realized through educational activities, but has to respect the specificities of the participants and voluntary participation. Both of these assumptions can be fulfilled within the leisure education using adequate pedagogical methods. For this reason, I decided to focus my attention on these areas at the end of the chapter. The fourth chapter is devoted to work and work activities, namely the definition of concepts, their characteristics and importance and role of work activities in human life, or a person with mental disability. Based on all acquired theoretical knowledge and using previous experience with the target group in the fifth chapter, I designed a specific training program based on the work and activities focused on the development of selected key competences. The educational program volunteered four participants, but I have decided to follow the development of competencies of three participants because one participant attended the program very irregularly. The program has been implemented three times a week, two and a half hours for seven months (from October 2015 to May 2016) in the premises of the training centre Mo-zai-ka. At the beginning of the realisation of the created educational program, the participants agreed that we will adhere and develop good habits necessary for good relations within the group and the results of the work. On a basis of the individual characteristics of the participants, I prepared the work, which should also contribute to the development of social and personal and interpersonal skills. I have continuously monitored and recorded them. During the implementation of the program, I put emphasis on repetition, patient negotiations with participants and creating a friendly atmosphere. After completing the training program, I evaluated the development of competencies in three selected participants. On that basis, I concluded that the biggest change was in the communicative competence. I also experienced a change in social and personal competencies, however, results varied widely among individual participants. Yet, I believe that the goal of the thesis was achieved. These results show that education in leisure time, based on work activities may lead to the development of social and personal and interpersonal skills that are for adults with mental disabilities necessary in the process of social integration. This thesis can be an interesting source of inspiration for the realisation of similar programs aimed at social integration of persons with mental disabilities.
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