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2262. ÚTIA spouvyvíjí přijímač pro DVB-T2
- Creator:
- Milan Tichý
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Věda. Všeobecnosti. Základy vědy a kultury. Vědecká práce, Ústav teorie informace a automatizace (Akademie věd ČR), televizní technika, televizní vysílání, digitální vysílání, television technology, television broadcasting, digital broadcasting, 12, and 00
- Language:
- Czech
- Description:
- The Institute of Information and Automation of ASCR (UTIA) and an Italian firm Screen Services completed the first stage of the cooperative project of developing and industrial receiver for the DVB-T2, a new generation of the digital terrestrial television broadcasting. DVB-T2 is the most advanced system in the world and introduces the latest modulation and coding techniques to enable highly efficient use of the valuable terrestrial spectrum for the delivery of audio, video and data services to fixed, portable or mobile devices. and Milan Tichý.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2263. Utilization of alternative fuels in the fluized - bed boilers
- Creator:
- Pavel Kolat, Bohumír Čech, Dagmar Juchelková, Helena Raclavská, and Juraj Leško
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, hnědé uhlí, biomasa, lignite, biomass, alternative fuels, fluidized-bed boilers, 7, and 551
- Language:
- English
- Description:
- The energy utilization of the alternative fuels is one of the main topics for future developments of recoverable sources in the European Union and in the Czech Republic. The aim of research is combustion tests in the fluidized-bed boiler Foster Wheeler located at Štětí. The experiments are carried out for Czech brown coal, wood, sewage sludge and wastes including analyses and recommendations for optimal thermal utilization and minimizing harmful emissions. The second step is thermal analyses of coal, alternative fuel- wood pellets and sewage sludge from treatment plant. From the results of experiments and thermal modeling it is clear that 15 % of alternative fuels can be used in the large fluidized-bed boilers located in the Czech Republic., Pavel Kolat, Bohumir Čech, Dagmar Juchelková, Helena Raclavská and Juraj Leško., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2264. Utilization of coal in the czech Republic review overlook
- Creator:
- Václav Roubíček, Pavel Kolat, and Jaroslav Buchtele
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, výroba elektrické energie, uhlí, hornictví, power generation, coal, mining, GHG emissions, 7, and 551
- Language:
- English
- Description:
- Review article presents utilisation of coal in industry, coal in power generation, gas production, Czech energy policy and outlook and application of clean coal technology in the Czech power stations. The further exploitation and utilisation of Czech coal resources requires the implementation of development programme aimed at the application of the new, economically effective technologies, of coal mining, utilisation, gasification. Emissions of GHG in CR., Václav Roubíček, Pavel Kolat and Jaroslav Buchtele., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2265. Utváření a význam pavoučích osobností v ekologické dynamice
- Creator:
- Michalko, Radek
- Format:
- print, bez média, and svazek
- Type:
- article, text, články, journal articles, model:article, and TEXT
- Subject:
- Biologické vědy, pavouci, ekologie, evoluce (biologie), ekologická dynamika, evoluční dynamika, personalita, vnitrodruhová variabilita, 2, and 57/59
- Language:
- Czech
- Description:
- Vnitrodruhová variabilita v chování zvířat, tj. personalita, výrazně ovlivňuje ekologické i evoluční procesy. V tomto článku se pojednává o tom, jak může personalita vzniknout u pavouků a její vliv na potravní sítě., Inter-individual behavioural differences, i.e. personalities, play a very important role in eco-evolutionary processes. Here, we describe how spiders’ personalities arise and how they influence the dynamics of food webs., and Radek Michalko.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2266. UV-B induced production of MMP-2 and MMP-9 in human corneal cells
- Creator:
- Igor Kozák, Klisenbauer, D., and Tomáš Juhás
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, fyziologie, physiology, UV-B irradiation, human corneal epithelial cells, human corneal fibroblasts, MMP-2 production, MMP-9 production, acute photokeratitis, 14, and 612
- Language:
- English
- Description:
- The purpose of this study was to determine the production of metalloproteinases (MMP) 2 and 9 following UV-B irradiation in human corneal epithelial cells and fibroblasts. Epithelial cells and fibroblasts were separated from human donor corneas and exposed to UV-B lamp irradiation for 20, 40, 80 and 120 s. Media samples were collected at 8, 24, 48 and 72 h and gelatinase A and B production was assayed by the ELISA test. Statistical significance of production was assessed by the paired t-test. Increased production of MMP-2 was found in human corneal fibroblasts in response to UV-B irradiation. A statistically significant production of MMP-2 was not observed in human corneal epithelial cells following UV-B exposure. We did not detect any increase in MMP-9 after irradiation in either epithelial cells or fibroblasts. MMP-2 is produced by the corneal fibroblasts in the acute phase after UV-B irradiation. MMP-9 is not released in vitro following UV-B irradiation damage and therefore does not directly participate in the pathophysiology of acute photokeratitis., I. Kozák, D. Klisenbauer, T. Juhás., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2267. V lednu 2016 začíná druhé kolo e-learningových kurzů o ochraně přírody
- Creator:
- Dušková, Markéta
- Format:
- print, bez média, and svazek
- Type:
- article, text, články, journal articles, model:article, and TEXT
- Subject:
- Biologické vědy, virtuální vzdělávání, e-learning, vzdělávací kurzy, ochrana přírody, virtual education, educational courses, nature conservation, on-line vzdělávání, 2, and 57/59
- Language:
- Czech
- Description:
- Markéta Dušková.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2268. V zajetí Gutenbergova syndromu: Metodologické aspekty vizuálních stimulů v sociálně vědním výzkumu
- Creator:
- Martin Buchtík
- Format:
- print, bez média, and svazek
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Společenské vědy, výzkum veřejného mínění, public opinion polls, visual research, visual stimuli, methodology, projective techniques, 18, and 3
- Language:
- Czech
- Description:
- Techniky využívající vizuálních stimulů jsou v sociálněvědním výzkumu přítomny od konce 19. století. Jejich metodologické ukotvení, zejména pak v kvantitativně orientovaných studiích, však není příliš pevné. V této přehledové stati se proto zaměřuji na metodologické aspekty jednotlivých skupin vizuálních technik a následně formuluji doporučení pro design studií, které se takový typ výzkumu rozhodnou použít. V textu se po stručném historickém úvodu postupně věnuji psychologickým projektivním metodám, využití vizuálních materiálů v hloubkových rozhovorech a kvantitativních dotazníkových šetřeních. V diskusi pak shrnuji metodologická specifika tohoto typu technik, doporučení pro design instrumentu a problémy validity., Techniques using visual stimuli have existed in social research since the late 19th century. However, the methodological framework in which they are embedded remains limited in scope, especially with respect to quantitative research. In this article, the author focuses on the methodological aspects of various types of visual techniques. Subsequently, he proposes some recommendations for methodological design. After a brief historical review, the main part of the article discusses psychological projective methods, photo-elicitation techniques and the application of visual stimuli in in-depth interviewing and quantitative questionnaire surveys. Final discussion focuses on the methodological specifics of visual methods, design recommendations and the problem of validity., Martin Buchtík., and Seznam literatury
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2269. Václav Káš (1899-1978)
- Creator:
- Martin Franc
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Biografie, Káš, Václav, 1899-1978, mikrobiologie, zemědělství, osobnosti, výročí, microbiology, agriculture, celebrities, anniversaries, 8, and 929
- Language:
- Czech
- Description:
- Martin Franc.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2270. Václav Petříček nestárne
- Creator:
- Jan Plesník
- Format:
- bez média and svazek
- Type:
- article, biography, text, články, journal articles, model:article, and TEXT
- Subject:
- Biologické vědy, Petříček, Václav, 1944 prosinec 29.-, biologie, ochrana přírody, ochrana krajiny, ekologové, výročí, biology, nature conservation, landscape protection, ecologists, anniversaries, 2, and 57/59
- Language:
- Czech
- Description:
- Jan Plesník.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public