National Repository of Grey Literature 345 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Laser welding with beam oscillation
Šebestová, Hana ; Horník, Petr ; Novotný, Jan ; Mrňa, Libor
Laser welding with beam oscillation (wobbling) usually leads to the reduction of penetration depth caused by transition from keyhole to conduction mode welding. Based on the distribution of power density in transversal direction (within the oscillation diameter), the approximate shape of weld cross-section can be predicted without the need to calculate heat conduction in the material. Deep penetration can also be achieved when a suitable combination of oscillation mode and its parameters is applied.
Technology of laser welding with beam oscillation - principles and applications
Mrňa, Libor ; Horník, Petr ; Novotný, Jan ; Šebestová, Hana
Laser welding with beam oscillation (wobbling) extends the possibilities of custom laser welding. Two examples of its industrial applications are shown. Further, the effect of oscillation mode and its characteristics on distribution of laser power density was simulated and compared with experimental weld cross-sections.
Death and palliative care in pre-hospital care
NOVOTNÝ, Jan
The bachelor thesis entitled Death and Palliative Care in Pre-hospital Care reports on the interaction of death per se, but also deaths of patients in the care of paramedics. Furthermore, the thesis intersects the medical field called palliative care, which serves as an important agent in the care of patients in the terminal phase of their existence. The subject of death is a entirely timeless topic that has been, is, and always will be with us. Four research objectives were defined: namely to find out the attitude of the paramedic towards the dying of patients in pre-hospital care, to find out how paramedics cope with deaths of patients in pre-hospital care, to find out what communication techniques are used by paramedics with dying patients and their relatives or with bystanders in pre-hospital care and the last research objective was to find out what knowledge paramedics have in palliative care during pre-hospital care. The first, theoretical part deals with the perception of death from the Middle Ages to the present, the discipline of Thanatology and its subgroups. The chapter touches on euthanasia and describes communication, palliative care and its specifics. The second, practical part used qualitative research by conducting semi-structured interviews to gather in-depth data. The interview was conducted with paramedics belonging to the regional centre of Jindřichův Hradec. With the help of open coding and subsequent categorization, the data was analyzed and interpreted using the "show one's cards" technique. According to the analysis, all paramedics perceived death as an inevitable, natural fact, with this group divided by the fact of armouring themselves over their practice. Another finding projected the validity of debriefing as an appropriate factor after a mentally challenging ambulance despatch. Regarding communication, paramedics were not sure about the suitability of the methods used, which stems from the absence of the seminars in question. Awareness of the term palliative care was generally sufficient, but insufficient for the subsequent specification of the therapy. There has been an inconvenience in working with mobile hospice care, or pain alleviation, which is not officially defined and operates on a referral basis.
Modular control system
Novotný, Jan ; Benešl, Tomáš
This paper deals with design, realization and programming of modular control system for general purpose. Intended use in the application of micro power plant, where is needed a low price. With an industrial control system is easy to achieve a control result, but the costs is high. Embedded solution can be cheaper, but mass production and high knowledge of the system are required. Another difference is the size, because embedded solution can be like a black box, but PLC needs for functionality more devices. The main goal was to design modular control system and implement base program functionality for next testing and developing.
Media Conflicts in the Issue of Calamities in the Czech Forests
Minkovová, Beatriz ; Novotný, David Jan (advisor) ; Štoll, Martin (referee)
Forests form an integral part of both the natural and cultural wealth of the Czech Republic. Similar to other countries, these forests are also plagued by various calamities. Various actors comment on these calamities in the media, between whom conflict sometimes arises due to conflicting opinions, attitudes, interests or experiences. It is media conflicts in the issue of calamities in Czech forests that are the subject of this diploma thesis. The introduction is followed by a theoretical part presenting the main concepts of the work, which are forests and harmful agents that cause forest calamities. Since conflicts between actors often have a legal character, the theoretical part describes the legal regulation regarding forests in the Czech Republic. The next part is the methodological part, in which the research questions are defined, which consist in determining the main conflicts, groups of actors and the specification of forests and forest disasters. Quantitative content analysis was chosen to find the answers to the set research questions. The methodological part is followed by the practical part, in which the data is analyzed and the answers are explained. The results are then summarized in the conclusion of the work. Keywords forest, calamity, conflict, actors
Teorie relativity - jak na středoškolské úrovni rozvíjet její pochopení
Ryston, Matěj ; Dvořák, Leoš (advisor) ; Novotný, Jan (referee) ; Šlégr, Jiří (referee)
The goal of this doctoral thesis is to find and implement possible ways to facilitate secondary school students' understanding of relativity. The thesis starts with an overview of existing literature as well as ongoingstudies concerned with teachingrelativityto secondarystudents, especially in connection with possible misconceptions and other learning difficulties. Furthermore, it maps available book and internet sources on relativity in both Czech and English that students might use outside of school. A research of Czech curricular documents for upper secondaryeducationandan online surveyamonggymnasium physics teachers were used to assess the current situation of teaching relativity in these schools. Based on the mentioned research, it was decided to develop learning resources focused on General Relativity. Following an analysis of a selection of relativity textbooks on this topic, a study website for interested students as well as a teaching-learningsequence for teachers to adapt in their own teaching were developed. The development and assessment of these materials are described in detail.
Perspectives on the Media Literacy in the Czech Republic
Holíková, Hana ; Novotný, David Jan (advisor) ; Lovaš, Karol (referee)
The bachelor thesis consists of two parts. A theoretical part that explains the terms used to implement the work and describes its theoretical basis, and a practical part in the form of written interviews with respondents from the field of media education. The theoretical part introduces the interview genre and describes its possible methods, approximates the requirements of media education contained in the framework educational programs and recommended expected outputs, and presents projects focused on media literacy. The practical part of the work consists of interviews with Přemysl Danda, Michal Kaderka and PhDr. Radim Wolák.
Assessment of ecosystem functions of urban greenery
Zemek, František ; Pikl, Miroslav ; Pavelka, Marian ; Zapletal, Miloš ; Kokrda, Lukas ; Novotný, Jan ; Duchková, Helena ; Vačkářová, Davina ; Foltýnová, Lenka ; Cudlín, Pavel ; Kolařík, J. ; Mácová, K. ; Holešová, H. ; Chalupová, O. ; Vojáčková, B. ; Mikulášek, J.
The methodology brings about new and practical approaches in assessment of five ecosystem functions and services of town greenery. It covers four regulation functions (microclimate regulation, carbon sequestration, pollution and noise reduction) and one information function (aesthetic and cultural-recreation). The calculus is based on a single greenery object evaluation using simplified biophysical and statistic models, however complying with all natural principles. The models utilize data standardly available in urban greenery passports and those which are accessible via map servers, e.g. meteorological situation and sociodemographic conditions.
Prevention of the occurrence and spread of natural fires in the immediate vicinity\nsurface sources of drinking water, including methods for estimating the consequences\npossible occurrence
Beranová, J. ; Čermák, Petr ; Albert, J. ; Cienciala, Emil ; Zatloukal, V. ; Kudláčková, Lucie ; Novotný, Jan ; Zeman, Evžen ; Kuráž, M. ; Vizina, Adam ; Trnka, Miroslav
The aim of the methodology is to create a pragmatic procedure for assessing the risks of the occurrence and spread of natural fires\nin the immediate vicinity of surface sources of drinking water. Methods for estimation are proposed in the methodology\nconsequences of the occurrence of natural fires on the quality of surface water, the prognosis of the change in the risk of fires\ndue to climate change and the procedure for determining the risk of secondary pollution of reservoirs due to\nchanges in runoff conditions after a natural fire. On this basis, the methodology designs and diversifies\npreventive and operational measures.
Risk assessment and prediction of natural fires in the immediate vicinity\nsurface sources of drinking water.
Trnka, Miroslav ; Kudláčková, Lucie ; Čermák, P. ; Balek, Jan ; Novotný, Jan ; Homolová, Lucie ; Semerádová, Daniela ; Brovkina, Olga ; Štěpánek, Petr ; Zahradníček, Pavel ; Skalák, Petr ; Bláhová, Monika ; Benáček, Patrik ; Fischer, Milan ; Sedlák, Pavel ; Janouš, Dalibor ; Žalud, Zdeněk ; Marek, Michal V. ; Možný, M. ; Hájková, L. ; Chuchma, F. ; Knozová, G. ; Beranová, J. ; Zatloukal, V. ; Albert, J. ; Mašková, R. ; Cienciala, E. ; Vizina, A. ; Nesládková, M. ; Melišová, E. ; Hanel, M.
The methodology formulates a procedure for assessing the risks of the occurrence and spread of natural fires in the immediate vicinity of surface sources of drinking water. The methodology\nproposes methods for estimating the consequences of natural fires on surface water quality, forecasting the change in the risk of fires due to climate change and the procedure for determining the risk of secondary pollution of reservoirs due to changes in run off after a natural fire. On this basis, the methodology proposes and diversifies preventíve and operational measures.The measures were designed in connection to modeling results for the Hadce pilot síte near the Švihov reservoir and the experience with the adverse effects of extensive deforestation on the water quality in the Vranov and Vír reservoirs.

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See also: similar author names
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