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Meteor Shower Fireballs
Shrbený, Lukáš ; Spurný, Pavel (vedoucí práce) ; Svoreň, Ján (oponent) ; Bland, Philip A. (oponent)
Centimeter-sized meteoroids cause bright meteors, called meteoric fireballs, during their encounter with the Earth's atmosphere. These fireballs can be observed by all-sky photographic methods. In this thesis, bright meteors belonging to major meteor streams are studied. All presented fireballs were recorded during last few years by all-sky photographic cameras from the Czech part of the European Fireball Network, Spain (Leonids 1999 campaign), and from the Australian Desert Network. Physical properties in terms of different methods (end height criterion, beginning heights, apparent ablation coefficient, fragmentation, dynamic pressure at the height of fragmentation or terminal flare), very detailed light curves (periodic changes of brightness, afterglow, shortlived flares, profiles) and heliocentric orbits are studied by individual showers. Studied meteor showers are Orionids, Geminids, _-Capricornids, Southern -Aquariids, Leonids and Perseids and a comparison of their main properties was performed. Also comparison with meteorite dropping fireballs was performed.
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Meteor Shower Fireballs
Shrbený, Lukáš ; Spurný, Pavel (vedoucí práce) ; Svoreň, Ján (oponent) ; Bland, Philip A. (oponent)
Centimeter-sized meteoroids cause bright meteors, called meteoric fireballs, during their encounter with the Earth's atmosphere. These fireballs can be observed by all-sky photographic methods. In this thesis, bright meteors belonging to major meteor streams are studied. All presented fireballs were recorded during last few years by all-sky photographic cameras from the Czech part of the European Fireball Network, Spain (Leonids 1999 campaign), and from the Australian Desert Network. Physical properties in terms of different methods (end height criterion, beginning heights, apparent ablation coefficient, fragmentation, dynamic pressure at the height of fragmentation or terminal flare), very detailed light curves (periodic changes of brightness, afterglow, shortlived flares, profiles) and heliocentric orbits are studied by individual showers. Studied meteor showers are Orionids, Geminids, _-Capricornids, Southern -Aquariids, Leonids and Perseids and a comparison of their main properties was performed. Also comparison with meteorite dropping fireballs was performed.
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Výběr a implementace IS pro projektovou stavební firmu
Spurný, Pavel ; Ulman, Miloš (vedoucí práce) ; Martin, Martin (oponent)
Tato diplomová práce se zabývá problematikou firemních informačních systémů se zaměřením na malé a střední podniky. Teoretická část definuje základní pojmy a vytváří teoretický základ problematiky podnikových IS. Dále je proveden rozbor vlivu zavádění informačních technologií do malých a středních firem na rozvoj regionu. Praktická část práce je založena na případové studii implementace informačního systému QI v projektové stavební firmě střední velikosti. Tato případová studie zachycuje celý proces od výběru produktu, předinstalační analýzy, nasazení IS, zaškolení uživatelů až po uvedení do ostrého provozu. Na to navazuje ekonomická kalkulace implementace IS. Je posouzena přenositelnost použitého řešení a zhodnocen výsledný stav IS v dané firmě. Jsou také identifikovány některé nedostatky celého procesu a navrženo jejich řešení.
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