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The comparison of the corrosion layers character of Zr1Nb alloys samples
Weishauptová, Zuzana; Sýkorová, Ivana
2012 - Czech
The performed study is aimed on the identification of the corrosion layers character of 3 samples of Zr1Nb alloy after the exposure to pressurized steam and VVER 360 oC. Provedená studie je zaměřena na identifikaci charakteru korozních vrstev 3 vzorků slitiny Zr1Nb po expozici v prostředí páry a VVER 360 oC.
Keywords:
zirconium alloys; corrosion layer; hydrated ZrO2
Available at various institutes of the ASCR
The comparison of the corrosion layers character of Zr1Nb alloys samples
The performed study is aimed on the identification of the corrosion layers character of 3 samples of Zr1Nb alloy after the exposure to pressurized steam and VVER 360 oC.
Development and assembling of measuring apparatus for geomechanics and hydrochemistry measurements
Brož, Milan; Nováková, Lucie; Štrunc, Jaroslav; Sosna, K.
2011 - Czech
The report depicts design and assembling of apparatuses measuring specific geotechnical and hydrochemical parameters. Moreover the report summarizes results of a granite matrix porosity visualisation using the scanning electron microscope. Zpráva popisuje návrh a sestavení měřících aparatur pro specifická měření geotechnických a hydrochemických parametrů. Ve zprávě jsou dále shrnuty výsledky vizualizace porozity granitové matrix použitím skenovacího elektronového mikroskopu.
Keywords:
geomechanics; hydrochemistry; SEM
Available at various institutes of the ASCR
Development and assembling of measuring apparatus for geomechanics and hydrochemistry measurements
The report depicts design and assembling of apparatuses measuring specific geotechnical and hydrochemical parameters. Moreover the report summarizes results of a granite matrix porosity visualisation ...
Utilization of ashes from biomass combustion
Hanzlíček, Tomáš; Perná, Ivana
2011 - Czech
The paper summarizes the results of project QI 102A207/2009, describes acquired experience and offers the basic properties of ashes from biomass combustion. Tento příspěvek sumarizuje výsledky projektu QI 102A207/2009, popisuje získané zkušenosti a nabízí základní vlastnosti popelů ze spalování biomasy.
Keywords:
biomass ash; geopolymer; fertilizer
Available at various institutes of the ASCR
Utilization of ashes from biomass combustion
The paper summarizes the results of project QI 102A207/2009, describes acquired experience and offers the basic properties of ashes from biomass combustion.
Application of geochemical analysis in the research of chemical fossils
Havelcová, Martina; Sýkorová, Ivana; Trejtnarová, Hana
2011 - Czech
Biomarkers (also termed chemical fossils) are specific organic compounds in geological samples which are derived from biochemical precursors by reductive or oxidative alteration processes. Chemical structures of biomarkers can be related back to the original compounds and utilized as indicators of biogenic, paleoenvironmental and geochemical processes. Examples of identified biomarkers in several studied coals, sediments, and wood fossils remnants are presented. Biomarkery (také nazývané chemické fosilie) jsou specifické organické sloučeniny přítomné v geologických materiálech, které jsou pozůstatky biochemických prekurzorů, přeměněné redukčními nebo oxidačními procesy. Chemické struktury těchto biologických ukazatelů mohou být vztaženy zpět k původním sloučeninám a využity jako indikátory biogenních, paleoenvironmentálních a geochemických dějů. Příklady identifikovaných biomarkerů v několika studovaných uhlích, sedimentech a zbytcích fosilních dřev jsou prezentovány.
Keywords:
biomarkers; terpenoids; GC/MS
Available at various institutes of the ASCR
Application of geochemical analysis in the research of chemical fossils
Biomarkers (also termed chemical fossils) are specific organic compounds in geological samples which are derived from biochemical precursors by reductive or oxidative alteration processes. Chemical ...
Sequencing and management of the field works
Kasíková, J.; Novák, P.; Nováková, L.; Michálková, J.; Vaněček, M.; Vanerová, Z.; Semíková, H.; Zuna, M.; Skřipko, J.; Nováková, Lucie; Plšková, M.; Vojtěchová, A.; Sosna, K.; Záruba, J.
2011 - Czech
Description of the 2011 field works has been given. Drilling and well logging including acoustic borehole imaging were the principal methods. Moreover an interpretation of the attained data has been introduced. Zpráva popisuje sled a řízení terénních prací na projektu v roce 2011. Realizovány přitom byly zejména vrtné práce a karotáž včetně akustického zobrazení vrtu. Zpráva zároveň nastiňuje interpretaci vrtných a karotážních poznatků.
Keywords:
granite matrix porosity; project management
Available at various institutes of the ASCR
Sequencing and management of the field works
Description of the 2011 field works has been given. Drilling and well logging including acoustic borehole imaging were the principal methods. Moreover an interpretation of the attained data has been ...
Biomass cinder – waste or raw material?
Ertl, Z.; Hanzlíček, Tomáš; Perná, Ivana; Boura, P.; Janků, R.
2011 - Czech
The paper summarizes the results of project MP0 FI-IM5/146 and offers a number of ways of utilization of ashes from biomass combustion. Tento příspěvek sumarizuje výsledky projektu MP0 FI-IM5/146 a nabízí několik způsobů využití popela ze spalování biomasy.
Keywords:
biomass ash; geopolymer; fertilizer
Available at various institutes of the ASCR
Biomass cinder – waste or raw material?
The paper summarizes the results of project MP0 FI-IM5/146 and offers a number of ways of utilization of ashes from biomass combustion.
Dynamics and fragmentations of meteoroids during their flight in the atmosphere
Kalenda, Pavel; Borovička, Jiří; Spurný, Pavel
2011 - Czech
The dynamic fragmentation of meteoroids during their flight in the atmosphere is described. The examples of very weak meteoroids, which easy fragments, up to strong meteoroids, which produce the explosive fragmentation, are described. Je popsána dynamická fragmentace meteoroidů při průletu atmosférou od nejvíce porušených meteoroidů s malou pevností až po nejpevnější, které vykazují explozivní fragmentaci.
Keywords:
meteoroids; fragmentation; dynamics
Available at various institutes of the ASCR
Dynamics and fragmentations of meteoroids during their flight in the atmosphere
The dynamic fragmentation of meteoroids during their flight in the atmosphere is described. The examples of very weak meteoroids, which easy fragments, up to strong meteoroids, which produce the ...
Primary field data measurement
Kasíková, J.; Novák, P.; Nováková, L.; Michálková, J.; Vaněček, M.; Vanerová, Z.; Semíková, H.; Zuna, M.; Skřipko, J.; Nováková, Lucie; Plšková, M.; Vojtěchová, A.; Sosna, K.; Kocourek, R.; Záruba, J.
2011 - Czech
The report delineates drilling and well logging including acoustic borehole imaging applied in 2011 in the project. Description and interpretation of the data is given subsequently. Zpráva popisuje vrtné práce a karotáž včetně akustického zobrazení vrtu provedené v rámci projektu v roce 2011. Data jsou popsána a následně interpretována.
Keywords:
granite matrix porosity; core drilling in granite; well logging
Available at various institutes of the ASCR
Primary field data measurement
The report delineates drilling and well logging including acoustic borehole imaging applied in 2011 in the project. Description and interpretation of the data is given subsequently.
Coalification – properties and classification of coal
Sýkorová, Ivana
2011 - Czech
The rank, properties and composition of peat and coal are discussed in relation to classification and utilization of coals. Prouhelnění, vlastnosti a složení rašeliny a uhlí byly diskutované v souvislosti s klasifikací a využitím uhlí.
Keywords:
coalification; reflectance; maceral composition
Available at various institutes of the ASCR
Coalification – properties and classification of coal
The rank, properties and composition of peat and coal are discussed in relation to classification and utilization of coals.
Strength, elasticity, and fracture of composites with pyrolysed matrices based on methylsiloxane resins with optimized ratio of “T” and “D” components
Černý, Martin; Žaloudková, Margit; Glogar, Petr; Sucharda, Zbyněk; Strachota, Adam; Chlup, Zdeněk
2010 - Czech
The investigated composites reinforced with Nextel720 fibers reveal acceptable mechanical properties for applications exposed to temperature up to 1300 °C. Mechanical properties were studied after three-hour exposition at 1300, 1400 and 1500 °C without a protective atmosphere. This temperature treatment increases the mechanical strength up to 15 %. Studované kompozity vyztužené vlákny Nextel720 mají mechanické vlastnosti přijatelné pro aplikace vystavené teplotám do 1300 °C. Byly studovány mechanické vlastnosti po tříhodinové expozici při 1300, 1400 a 1500 °C bez ochranné atmosféry. Po tomto tepelném zpracování dochází ke zvýšení mechanické pevnosti až o 15 %.
Keywords:
mechanical properties; composites, pyrolysis; methylsiloxane resin
Available at various institutes of the ASCR
Strength, elasticity, and fracture of composites with pyrolysed matrices based on methylsiloxane resins with optimized ratio of “T” and “D” components
The investigated composites reinforced with Nextel720 fibers reveal acceptable mechanical properties for applications exposed to temperature up to 1300 °C. Mechanical properties were studied after ...
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