National Repository of Grey Literature 16,388 records found  1 - 10nextend  jump to record: Search took 1.52 seconds. 

Contribution to mathematical modeling of drive parasitic vibration
Kratochvíl, Ctirad ; Kalous, J. ; Kotek, Vladimír
This article deals with the simulation of dynamic responses of electromechanical drive systems using mathematical-numerical methods. We constructed an idealized torsion system of the mechanical part of the real drive to examine the parasitic effects.

Implementation of the Smart Metering Systems in Energetics in Slovakia
Petreová, Adela ; Machek, Ondřej (advisor) ; Tyll, Ladislav (referee)
The goal of the Master´s thesis is to map the actual situation of transformation of power energy sector to smart grid, find answers to some of the major questions concerning the implementation of smart metering systems, evaluate societal and economic costs and benefits, evaluate trends in legislation, compare the situation in Slovakia with other peer countries from the European Union, and create a follow-up recommendations for Slovakia based on this assessment. The thesis includes detailed critical analysis of the CBA, originally created for Slovakia, using benchmarking with countries with a different calculation approach. The used methodology in this work is a research of available resources, qualitative research of case studies, break-down of the CBA, and expert research through interviewing. The outcome is evaluation of economic and societal contributions of smart metering systems and mapping the process and state of the implementation.

Building and use of smaller computer networks
Kyzivát, Marek ; Pinkas, Otakar (advisor) ; Šmejkal, Ivo (referee)
The thesis describes the initial state of the computer network Basic Schools and Kindergartens Ohradní (ZŠMŠ Ohradní) in Prague 4 and then its reconstruction, which I largely contributed. ZŠMŠ Ohradní consists of four pavilions and from one building on the other side of the street. The aim of this study is to assess the initial state of the network and point out the shortcomings that we discovered. We found deficiencies in the operation stress tests, measurements and data cabling overall analysis. Original networks connectivity was 100Mb/s. Together with a colleague, we are network administrators. Furthermore, I am going to introduce a new form of network, which has identified deficiencies improved, by using on newer technologies. I will describe its structure, address allocation, active and passive components, and operated services. New network is capable of 1Gb/s, and its spine is going to be 10Gb/s soon. Benefits of this reconstruction is faster, more stable and more modern network that will facilitate the work of employees of ZŠMŠ Ohradní. To these improvements, I have mainly contributed by measurements. I participated in the design and implementation of new form of data network. I collaborated with fellow Poc to the configuration of active elements and network services in reconstructed network.

Výběr a implementace open source nástroje pro řízení portfolia projektů
Marek, Jan ; Chlapek, Dušan (advisor) ; Kučera, Jan (referee)
Methods and ways of implementation of changes and innovations in companies through project management are in today's society very well established. There exists methodologies, techniques and tools for the management of individual projects. However in a role of project manager, I very often faced the fact that companies are performing the project portfolio management in very intuitive way. This in itself leads to failed and prematurely terminated projects, initiation of the wrong projects or realisation of correct projects, but at the wrong time. Very often I have also recognized, that there is lack of awareness of fact, that there are also Open Source applications that can help with the organization's portfolio. This thesis deals with the definition of requirements, search and selection of proper OSS application and subsequent implementation. In the first part of this thesis I prepare a theoretical framework about PPM, and on that basis then identify and verify a set of requirements for selection of right OSS PPM application. The next section of thesis describes searching for suitable applications from a variety of sources, assessment against the requirements and the final selection. In the last part the implementation project is drafted, which aims to serve other colleagues in project management as one of the possible implementation paths. The outputs are then continuously confronted with experts in matter of projects and project management in the field of IT in order to maximize symbiosis between theory and real life experiences. Virtually every project management methodology defines the collection of already-proven techniques, best practices or lessons learned from the previous similar implementations. The main contribution of this thesis I see in fact that it contains not only the design of the project implementation, but also describes a logical path, what leads to the result. Therefore this thesis could be used as a base or discussed best practice, when a project of implementation of PPM application in place.

Developing open approach to mathematics in future primary school teachers
Samková, L. ; Tichá, Marie
In our contribution we focus on the possibility to develop open approach to mathematics in future primary school teachers during a university course on mathematics conducted in inquiry-based manner. We analyse data obtained in the beginning and in the end of the course with respect to two main aspects related to open approach to mathematics: searching for all solutions of a task, and acceptance of different forms of notation of a given solution. Data analysis revealed in the participants three different shifts towards open approach to mathematics, and showed that after the active participation in the course each of the participants improved at least in one of the monitored aspects, and that none of the participants got worse in any of the aspects.

Tick-borne encephalitis - from pathogenesis to therapy
PALUS, Martin
The proposed thesis contributes to the knowledge about tick-borne encephalitis and its pathogenesis. The thesis describes pathogenesis and immunopathogenesis of tick-borne encephalitis, impact of host's genotype in clinical course determination, immune response of patients with acute tick-borne encephalitis, the mechanism of tick-borne encephalitis virus migration into central nervous system and virus interaction with cells of neurovascular unit as well as potential medical interventions.

The Media Influence on Transformation of Democracy
Půlpánová, Barbora ; Pehe, Jiří (advisor) ; Slačálek, Ondřej (referee)
Mass media has always played the key role in democratic process. They are not only the indicator of its right functioning, but also the iniciator. From historical point of view is obvious, that technological progress and changes in the way of informing people were related to the political area. But with the increasing role of media, they changed their position from pure mediators of informations to the main actors of social and political life. The ‚old' media, such as newspapers, radio and television, are therefore partly responsible for commercialization of the public sphere and also for its depolitization. With contribution of the globalization effect on today's world, which causes besides other things the weakening of the nation state, there are only a little of the key democratic aspects left. Some find the solution in the ‚new' media represented by the Internet and social media, which are more interactive so they could get the citizens back to the game. And right in the increase of civic engagement see the theorists the potencial for creating a new democratic order based on high-level participation. KEY WORDS Mass media, Democracy, Public Sphere, Civic Engagement, Internet, Social media, Participative Democracy, Deliberative Democracy

NUMERICAL ESTIMATION OF MICRO-CRACK PATHS IN POLYMER PARTICULATE COMPOSITE
Majer, Z. ; Náhlík, Luboš
Determination of composite mechanical behavior is one of important part during the composite tailoring. The aim of the present work was to estimate a micro-crack behavior in a polymer particulate composite. The composite was investigated by means of the finite element method -using ANSYS software. A two-dimensional three-phase finite element model was developed to analyze the crack growth behavior. The assumptions of the linear elastic fracture mechanics were considered and the Maximum Tangential Stress (MTS) criterion was used to predict the direction of the crack propagation. The effect of the elastic modulus of the interphase on the micro-crack propagation was investigated. The properties of matrix and particles were taken from experiment. It was shown that the interphase properties influence the stress intensity factor KI as well as the micro-crack paths. The results of this paper can contribute to a better understanding of the micro-crack propagation in particulate composites with respect to the interphase.

Ensuring patient´s privacy during re-bandaging
BELLOVÁ, Daniela
This bachelor thesis investigates the way nurses ensure patient´s privacy in surgery departments during re-bandage. Beginning of the thesis´ theoretical part is focused on theoretical knowledge necessary for wounded patients care, the basic knowledge of anatomy and skin physiology. Next, what are a wound and what the healing process itself looks like. Which factors, either local or general, can negatively affect healing and how the care of particular nurse can contribute to it. Further, the process of wound treatment followed by post-surgery care and theoretical procedure of the bandaging itself, focusing on ensuring patient´s intimacy during the procedure. The entire knowledge of aseptic bandage procedures and good general patient care allows fast and uncomplicated healing. The number of re-bandages is decreased as well as the risk of violating the patients´ intimacy. Therefore, following chapters are focused on patient´s needs, his/her dignity and holistic approach of man. Patient´s needs are centered around self-concept and self-respect. Dignity and an emphasis on its compliance is the core of this thesis. The perception of intimacy, shame and nudity brings us to this issue. It is the reason this thesis was written and why it is so important to ensure such things as intimacy. Theoretical part of the thesis then brings information about legislative protection of privacy and highlights Patient´s rights and Code of Ethics for Nurses that should be remembered and followed by every nurse. Research in this thesis was conducted by the method of quantitative investigation in surgery departments in České Budějovice hospital, specifically in its surgical, orthopedic, traumatology, gynecology, urology, neurosurgery and cardiac surgery departments. Two kinds of survey were held. First was intended for patients hospitalized in surgery departments who underwent re-bandage and second one was given to the nurses working there. The aim of the thesis was to find out the way patient´s intimacy is ensured during re-bandaging. According to the highest number of positive answers from both clients and nurses, it was shown that nurses, when preparing to bandage patients, always ensure that the door is closed. When exposing a client, they make sure not to uncover his body more and longer than necessary. Despite this finding, we didn´t confirm the hypothesis number one: Surgery department nurses ensure patients intimacy during bandaging. The cause of the low number of achieved points was the failure to ensure patients intimacy in front of the other patients in the room, where majority of the bandaging were held. This finding contributed in the confirmation of the second hypothesis: Surgery department nurses do not use the equipment for ensuring patient´s intimacy during bandaging. Results from patient´s answers positively showed that nurses do not use either the curtain or the bandaging room. Therefore, clients are bandaged in front of other patients in the room. The kind of bandaging wasn´t taken into account in the survey. However, the intimacy is perceived differently by each individual and even its slightest disruption might be taken negatively. The third hypothesis: Intimacy violation occurs more frequently among long-term hospitalized patients, was confirmed. The results was not contributed by the majority of answers as with the previous hypothesis, but even small number of respondents confirming the decrease in quality during their hospitalization, could not be left unnoticed and was considered sufficient for confirming the hypothesis. The results of this bachelor thesis will serve as feedback for nurses and if it increases their interest in ensuring patients´ intimacy, then this work has fulfilled its purpose.

Effect of snowpack on runoff generation during rain on snow event.
Juras, Roman ; Máca, Petr (advisor) ; Ladislav , Ladislav (referee)
During a winter season, when snow covers the watershed, the frequency of rain-on-snow (ROS) events is still raising. ROS can cause severe natural hazards like floods or wet avalanches. Prediction of ROS effects is linked to better understanding of snowpack runoff dynamics and its composition. Deploying rainfall simulation together with hydrological tracers was tested as a convenient tool for this purpose. Overall 18 sprinkling experiments were conducted on snow featuring different initial conditions in mountainous regions over middle and western Europe. Dye tracer brilliant blue (FCF) was used for flow regime determination, because it enables to visualise preferential paths and layers interface. Snowpack runoff composition was assessed by hydrograph separation method, which provided appropriate results with acceptable uncertainty. It was not possible to use concurrently these two techniques because of technical reasons, however it would extend our gained knowledge. Snowmelt water amount in the snowpack runoff was estimated by energy balance (EB) equation, which is very efficient but quality inputs demanding. This was also the reason, why EB was deployed within only single experiment. Timing of snowpack runoff onset decrease mainly with the rain intensity. Initial snowpack properties like bulk density or wetness are less important for time of runoff generation compared to the rain intensity. On the other het when same rain intensity was applied, non-ripe snowpack featuring less bulk density created runoff faster than the ripe snowpack featuring higher bulk density. Snowpack runoff magnitude mainly depends on the snowpack initial saturation. Ripe snowpack with higher saturation enabled to generate higher cumulative runoff where contributed by max 50 %. In contrary, rainwater travelled through the non-ripe snowpack relatively fast and contributed runoff by approx. 80 %. Runoff prediction was tested by deploying Richards equation included in SNOWPACK model. The model was modified using a dual-domain approach to better simulate snowpack runoff under preferential flow conditions. Presented approach demonstrated an improvement in all simulated aspects compared to the more traditional method when only matrix flow is considered.