No (6259)
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Investigation of basic mechanical and fracture-mechanical properties of specimens cut from high pressure gas pipeline – locality L177/2 after a twentyone months exposition to moist and dry hydrogen at the pressure 3 MPa
Gajdoš, Lubomír; Šperl, Martin; Šorm, Filip; Bejdl, Jan
2023 - Czech
Investigation of the effect of moist and dry hydrogen pressurized to 3 MPa on mechanical and fracture properties of gas pipeline steel ČSN 13126, tensile specimens, Charpy specimens and CT specimens were kept loaded during the exposition in moist hydrogen, after a 21th months exposition it was found that ductility of tensile specimens and fracture parameters Jin and J0,2 of CT specimens decreased whilst the parameter Jm was slightly increased. Vyšetření vlivu vlhkého a suchého vodíku stlačeného na tlak 3 MPa na mechanické a lomové vlastnosti plynovodní oceli ČSN 13126, tahové vzorky, Charpy vzorky i CT vzorky byly během expozice ve vlhkém vodíku trvale zatíženy, po 21 měsících expozice byl zjištěn pokles tažnosti tahových vzorků, pokles lomových parametrů Jin a J0,2 a mírné zvýšení parametru Jm.
Keywords:
stress-strain diagram; Ramberg-Osgood dependence; impact strength; fracture toughness
Available at various institutes of the ASCR
Investigation of basic mechanical and fracture-mechanical properties of specimens cut from high pressure gas pipeline – locality L177/2 after a twentyone months exposition to moist and dry hydrogen at the pressure 3 MPa
Investigation of the effect of moist and dry hydrogen pressurized to 3 MPa on mechanical and fracture properties of gas pipeline steel ČSN 13126, tensile specimens, Charpy specimens and CT specimens ...
Chemical and microstructural analysis of sandstone samples from the cemetery portal at the Gothard in Hořice
Slížková, Zuzana; Frankeová, Dita; Bauerová, Pavla; Náhunková, Pavla; Mácová, Petra; Ševčík, Radek; Vondráčková, Michaela
2023 - Czech
Determination of the chemical and mineralogical composition of the surface layer of sandstone and the speed of water transport through the surface of the stone (comparison of the properties of the light ocher surface and the black surface of sandstone. Stanovení chemického a mineralogického složení povrchové vrstvy pískovce a rychlosti transportu vody povrchem kamene (srovnání vlastností světlého povrchu a černého povrchu pískovce).
Keywords:
sandstone; black film; water absorption; chemical composition; mineralogical composition; stone surface
Available at various institutes of the ASCR
Chemical and microstructural analysis of sandstone samples from the cemetery portal at the Gothard in Hořice
Determination of the chemical and mineralogical composition of the surface layer of sandstone and the speed of water transport through the surface of the stone (comparison of the properties of the ...
Short-term savings and financial resilience of Czechs.
Fialová, Kamila; Mysíková, Martina
2023 - Czech
The aim of this study is to identify the main factors that may affect the resilience of Czech households to financial shocks through their impact on savings - short-term financial reserves.\n\n Cílem této studie je identifikovat hlavní faktory, které mohou působit na odolnost českých domácností vůči finančním šokům skrze vliv na vytváření úspor – krátkodobé finanční rezervy.\n\n
Keywords:
Financial resilence; short-term savings
Available at various institutes of the ASCR
Short-term savings and financial resilience of Czechs.
The aim of this study is to identify the main factors that may affect the resilience of Czech households to financial shocks through their impact on savings - short-term financial reserves.\n\n
SMV-2023-49: Optical tweezers upgrade
Jákl, Petr; Šerý, Mojmír
2023 - Czech
Modification and improvement of the procedures for controlling the custom-built optical tweezers apparatus, optimization of the procedures for the hardware control and ensuring compatibility with Windows 10 and LabVIEW 2016. Modifikace a vylepšení softwarového balíku pro ovládání aparatury optické pinzety - optimalizace procedur pro kontrolu hardware v aparatuře a zajištění kompatibility s Windows 10 a LabVIEW 2016.
Keywords:
optical tweezers; control software
Available at various institutes of the ASCR
SMV-2023-49: Optical tweezers upgrade
Modification and improvement of the procedures for controlling the custom-built optical tweezers apparatus, optimization of the procedures for the hardware control and ensuring compatibility with ...
SMV-2023-55: EM Nematodes I 2023
Hrubanová, Kamila
2023 - Czech
The aim of the contract research was the expert analysis of biological samples with the intention of describing morphological features for species classification. As part of the collaboration, chemical preparation of the samples was carried out, followed by observation of the bodies of the nematodes themselves in different positions so that individual morphological characters could be distinguished using an electron microscope. Cílem smluvního výzkumu byla odborná analýza biologických vzorků se záměrem popsat morfologické znaky pro druhovou klasifikaci. Součástí spolupráce byla provedena chemická příprava vzorků, následovalo pozorování těl samotných hlístic v různých pozicích tak, aby bylo možné rozlišit jednotlivé morfologické znaky pomocí elektronového mikroskopu.
Keywords:
nematodes; electron microscopy; morphological characterization
Available at various institutes of the ASCR
SMV-2023-55: EM Nematodes I 2023
The aim of the contract research was the expert analysis of biological samples with the intention of describing morphological features for species classification. As part of the collaboration, ...
SMV-2023-57: EM analysis of microorganisms II
Hrubanová, Kamila
2023 - Czech
The aim of the contract research was the expert analysis of microbiological samples with biotechnological significance with the intention of describing the ultrastructure of the cells, which depends on the cultivation conditions of the industrial process. The collaboration included cryogenic preparation of samples, followed by microbial microscopy using low-temperature electron microscopy (cryo-SEM), and selected samples were processed for transmission electron microscopy (TEM). Furthermore, spectroscopic measurements were performed using Raman spectroscopy. Cílem smluvního výzkumu byla odborná analýza mikrobiologických vzorků s biotechnologickým významem se záměrem popsat ultrastrukturu buněk, která se odvíjí od kultivačních podmínek průmyslového procesu. Součástí spolupráce byla provedena kryogenní příprava vzorků, následovalo mikrobů pomocí elektronového mikroskopu za nízkých teplot (cryo-SEM), vybrané vzorky byly zpracovány i pro transmisní elektronovou mikroskopii (TEM). Dále byla provedena spektroskopická měření pomocí Ramanovy spektroskopie.
Keywords:
microorganisms; electron microscopy; TEM; Raman spectroscopy; biotechnology
Available at various institutes of the ASCR
SMV-2023-57: EM analysis of microorganisms II
The aim of the contract research was the expert analysis of microbiological samples with biotechnological significance with the intention of describing the ultrastructure of the cells, which depends ...
Novel embedding resins for 3D-SEM II
Šlouf, Miroslav; Pavlova, Ewa; Strachota, Beata; Strachota, Adam; Nebesářová, Jana; Týč, Jiří; Krzyžánek, Vladislav; Skoupý, Radim
2023 - English
Research report for Thermo Fisher Scientific s. r. o., based on common project awarded by TA CR (program: National center of competence, TN01000008).
Keywords:
novel embedding resins; 3D-SEM microscopy; higher e-beam resistance
Available at various institutes of the ASCR
Novel embedding resins for 3D-SEM II
Research report for Thermo Fisher Scientific s. r. o., based on common project awarded by TA CR (program: National center of competence, TN01000008).
Geological and geotechnical characterisation of the mining environment - URF Bukov II - Interim report II
Bukovská, Z.; Rukavičková, L.; Chabr, T.; Morávek, R.; Levý, O.; Sosna, K.; Souček, Kamil; Vavro, Martin; Zelinková, T.; Dobeš, P.; Švagera, O.; Kryl, J.; Soejono, I.; Řihošek, J.; Holeček, J.; Hanák, J.; Čermák, F.; Kašpar, R.; Mareček, L.; Nedvěd, J.; Vavro, Leona; Waclawik, Petr; Staš, Lubomír; Myška, O.
2023 - Czech
This report describes the work carried out in the second year of the public contract Geological and geotechnical characterisation of the rock environment – PVP Bukov II. The\ncharacterisation and descriptive works are directly related to the excavation of the premises for the future underground laboratory. These include in particular: geological and geotechnical documentation of the faces and walls of the workings, petrographic, mineralogical and structural geological documentation, hydrogeological characterisation of the environment, as well as determination of the physical and mechanical properties of the rock mass in situ and in the laboratory, geophysical characterisation and monitoring of the seismic effects of blasting and hydrogeological monitoring. An important part of this report is preparation of the classification system used to describe the rock mass. The report also includes a brief overview of the work planned for the third year of the project. Tato zpráva popisuje práce zhotovené v druhém roce řešení veřejné zakázky Geologická a geotechnická charakterizace horninového prostředí – PVP Bukov II. Charakterizační a popisné práce přímo navazují na ražbu prostor pro budoucí podzemní laboratoř a zahrnují zejména: geologické a geotechnické dokumentace čeleb a stěn díla, petrografickou, mineralogickou a strukturně geologickou dokumentaci, hydrogeologickou charakterizaci prostředí, dále stanovení fyzikálně-mechanických vlastností horninového masivu in situ a v laboratoři, geofyzikální charakterizaci a monitoring seismických účinků trhacích prací a hydrogeologický monitoring. Důležitou součástí je příprava klasifikačního systému pro popis horninového masivu. Zpráva je doplněna stručným přehledem prací plánovaných pro třetí rok řešení projektu.
Keywords:
geological documentation; 3D model; petrography; Bukov URF; petrophysical data
Available on request at various institutes of the ASCR
Geological and geotechnical characterisation of the mining environment - URF Bukov II - Interim report II
This report describes the work carried out in the second year of the public contract Geological and geotechnical characterisation of the rock environment – PVP Bukov II. The\ncharacterisation and ...
Aerodynamic Measurements on Subsonic Compressor Blade Cascades KR-D-7 and KR-D-8
Šimurda, David; Hála, Jindřich; Luxa, Martin; Radnic, Tomáš
2023 - English
This report contains results and evaluation of aerodynamic measurements conducted on two variant subsonic compressor blade cascades with MCA profile (KR-D-7) and DCA profile (KR-D-8) at transonic flow regimes.
Keywords:
compressor blade cascade; experiment; transonic flow; subsonic flow; MCA profile; DCA profile
Available at various institutes of the ASCR
Aerodynamic Measurements on Subsonic Compressor Blade Cascades KR-D-7 and KR-D-8
This report contains results and evaluation of aerodynamic measurements conducted on two variant subsonic compressor blade cascades with MCA profile (KR-D-7) and DCA profile (KR-D-8) at transonic flow ...
Aerodynamic Measurements on Transonic Compressor Blade Cascades KR-D-9 and KR-D-10
Šimurda, David; Hála, Jindřich; Luxa, Martin
2023 - English
This report contains results and evaluation of aerodynamic measurements conducted on two variant transonic compressor blade cascades with MCA profile (KR-D-10) and DCA profile (KR-D-9) at transonic flow regimes.
Keywords:
compressor blade cascade; experiment; transonic flow; MCA profile; DCA profile
Available at various institutes of the ASCR
Aerodynamic Measurements on Transonic Compressor Blade Cascades KR-D-9 and KR-D-10
This report contains results and evaluation of aerodynamic measurements conducted on two variant transonic compressor blade cascades with MCA profile (KR-D-10) and DCA profile (KR-D-9) at transonic ...
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