National Repository of Grey Literature 122 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Effects of Non-Linear Stiffness on Turn Process Stability in Horizontal Turning Machines
Hadraba, Petr ; Chih-Chun, Douglas Cheng, (referee) ; Kolář, Petr (referee) ; Hadaš, Zdeněk (advisor)
Nelineární tuhost ovlivňuje dynamiku moderních obráběcícho strojů. Důležitým parametrem produktivity obráběcího stroje jsou samobuzené vibrace, které omezuje výkon obráběcího stroje. Tato práce byla motivována průmyslovým případem, kdy chování obráběcího stroje nelze předvídat tradičními metodami a stroj vykazuje významnou změnou dynamického chování. Tato práce krok za krokem představuje analýzu, která byla zaměřena na simulaci samobuzených vibrací a vlivu nelineární tuhosti na výslednou stabilitu chvění. Se zvyšující se složitostí modelu byl představen linearizační přístup, který umožňuje rychlejší analýzu stability obrábění. Pro lepší mapování a tvorbu stabilitního lobe diagramu pro nelineární strukturu je uveden algoritmus syntézy linearizovaných řešení v pracovním bodě. Linearizační přístup byl kombinován s nelineární statickou simulací s ohledem na model nelineárního chování lineárního kuličkového vedení a použit pro predikci chování chvění. Nelineární statický model využívá metodu dynamické kosimulace a substrukturování, aby do analýzy začlenil účinky strukturální deformace. Experimentální zkouška obrábění umožnila porovnat výsledky analýzy a prokázala dobrou shodu s maximálními frekvenčními odchylkami v pásmu 3 Hz.
Principles of the circular economy in the automotive industry
KOLÁŘ, Petr
This thesis deals with the issue of circular economy and the automotive industry. The main aim of the thesis is to evaluate the levels of circular economy principles in the automotive industry based on the analysis carried out. The sub-objective of the thesis is a proposal to improve the current situation. The aim is to find out what level of acceptance of the circular economy in the automotive industry the Czech Republic achieves in comparison with other European Union countries and how it could improve this level. Furthermore, the thesis analyses what is the development and to what extent the renewal of the automotive fleet in the Czech Republic is going on. Due to the availability of data, the time period from 2009/2010 to 2021/2022 is examined. The principle of use of the circular material rate in the automotive industry and the principle of fleet renewal are analysed. Finally, for both principles, a proposal for improving the current situation is given. The resulting resulting calculated data and suggestions for improvement provide an opportunity for future predictions. These can be useful, for example, for those in the automotive industry who are considering the future direction of the company. A positive finding of the thesis is that the Czech Republic has made a significant advance in the rate of circular material use in the automotive industry over the period studied, and a positive trend can be seen for future years. On the other hand, there are still considerable reserves in the renewal of the automotive fleet and much room for improvement.
Outreach of an Exoplanet Research and the PLATO Space Mission in the Czech Republic
Dupkala, Daniel ; Drozd, Zdeněk (advisor) ; Kolář, Petr (referee)
The extrasolar planets have become one of the most exciting and promising research fields in modern astronomy. They could reveal the answers to some of the biggest questions such as the origin of life, planetary evolution, or the existence of extraterrestrial life in the universe. Exoplanets also present a unique option for scientific outreach as they are easy to imagine and understand. In this thesis, the current research, its history, and future plans are described with a focus on Czech participation in it. Especially the PLATO mission will give the Czech Republic a front seat in exoplanetary science. Various outreach activities are presented both conducted by the author and proposed for the future. A special focus was given to the work with talented high school students. Three activities were organized with the aim to present the research on the exoplanets to students and to give them the opportunity to try and participate in it. These activities covered the area of astronomical observations, the analysis of the light curves from the transit photometry, and finally the data processing of the stellar spectra for the radial velocity measurements. The activities were evaluated for future reference. 1
The Automotive Industry and Its Influence on the Economic Situation in the Selected Region
KOLÁŘ, Petr
This thesis deals with the automotive industry and its impact on the economic situation in the South Bohemian Region. The aim is to analyse and evaluate selected indicators and their influence on the selected indicators of the number of employees in the region in the monitored period. The surveyed indicators include unemployment, number of employees outside the automotive industry, average gross wage, number of enterprises and sales per employee in the automotive industry in the South Bohemian Region. The main factors and dependencies are evaluated using econometric and statistical methods.
Starting points for a new physics curriculum
Kolář, Petr ; Žák, Vojtěch (advisor)
This thesis presents starting and supporting points for a new secondary school physics curricu- lum and the methodology which was used. The research design was inspired mainly by the objectivist grounded theory. 29 in-depth semistructured interviews were conducted with elite Czech physicists and there were identified 79 ideas about a secondary school physics curricu- lum. After approximately two years, 56 ideas were used in the questionnaire survey where re- spondents expressed on a Likert scale their degree of agreement with the ideas. Respondents were natural scientists (non-physicists), experts on didactics of physics, secondary school phys- ics teachers and 26 of 29 physicists who were also participants of the interviews. In the ques- tionnaire survey, there were identified ideas on which all groups of respondents agreed and which are stable in time in the group of physicists.
Education to Humanity
Kolář, Petr ; Koťa, Jaroslav (advisor) ; Strouhal, Martin (referee)
(in English): The main goal of the diploma thesis is to interpret the educational ideals in a relationship to the issues of education for humanity and to point out the importance of today's neglected reflection of humanity in education. Eugen Fink says that today's education for humanity has turned into a mere education for a profession. What is the historical development of his antinomy? What is its ontological essence? Education for humanity is opposed to education, which is a technique or means of forming a person in the service of power. Such education is nurtured by the phenomenon of modern technology, which Heidegger called Gestell. It permeates human thinking and action through system planning and the action of organizational and bureaucratic structures. It is characterized by the objectification of man, forgetfulness of being, calculating thinking, non-perception of context, loss of identity and freedom, etc. The practical part of the thesis presents the course and results of research on the perception of Gestell by pedagogical staff. How do entities such as freedom, happiness, dignity, manipulation, fear, subordination, fulfillment, meaning, technology perceive?
Starting points for a new physics curriculum
Kolář, Petr ; Žák, Vojtěch (advisor) ; Ješková, Zuzana (referee) ; Kříž, Jan (referee)
This thesis presents starting and supporting points for a new secondary school physics curricu- lum and the methodology which was used. The research design was inspired mainly by the objectivist grounded theory. 29 in-depth semistructured interviews were conducted with elite Czech physicists and there were identified 79 ideas about a secondary school physics curricu- lum. After approximately two years, 56 ideas were used in the questionnaire survey where re- spondents expressed on a Likert scale their degree of agreement with the ideas. Respondents were natural scientists (non-physicists), experts on didactics of physics, secondary school phys- ics teachers and 26 of 29 physicists who were also participants of the interviews. In the ques- tionnaire survey, there were identified ideas on which all groups of respondents agreed and which are stable in time in the group of physicists.
Topical issues of corporate governance in Czech and Community regulation
Kolář, Petr ; Čech, Petr (advisor) ; Černá, Stanislava (referee)
Current Corporate Governance Issues in the Czech and EU Law In 2003 The European Commission released a paper entitled Modernising Company Law and Enhancing Corporate Governance in the European Union - A Plan to Move Forward. The document outlined a short-, medium- and long- term plans for enhancing corporate governance. Strengthening shareholders' rights has been one of its objectives. Following the plan, The Directive 2007/36/EC of the European Parliament and of the Council on the exercise of certain rights of shareholders in listed companies was enacted on 11 July 2007. It has been transposed into the Czech legal system in the law 420/2009 Sb. which came into force on 1st December 2009. The directive addresses an important corporate governance issue of overcoming shareholders' apathy by removing barriers, which have been keeping shareholders from actively exercising their rights. It however failed to provide a definition of a shareholder. The directive set out rules for proxy voting in a general shareholders' meeting. Member states or companies are not allowed to restrict the exercise of shareholder rights through proxy holders for any purpose other than to address potential conflicts of interest between the proxy holder and the shareholder by one of three prescribed methods. The Czech Business Code has...

National Repository of Grey Literature : 122 records found   1 - 10nextend  jump to record:
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18 KOLÁŘ, Pavel
65 KOLÁŘ, Petr
2 Kolář, P.
18 Kolář, Pavel
2 Kolář, Pavel,
65 Kolář, Petr
65 Kolář, Petr
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