No (6259)
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Monitoring of fish stock in Bolevecky pond in 2023
Draštík, Vladislav; Jůza, Tomáš; Blabolil, Petr
2023 - Czech
The report summarizes results of fish monitoring in Bolevecky pond using electrofishing device. Simoutaneously, the abundance of unfavorable fish species in terms of water quality were decreased. Futher recommendation for fish management and the need for future surveys were stated. Zpráva shrnuje výsledky průzkumu rybí obsádky Boleveckého rybníka v roce 2023 pomocí elektrického agregátu. Zároveň proběhlo odstranění nežádoucích druhů ryb s ohledem na kvalitu vody v rybníce. Sumarizace dosažených výsledků a návrh doporučení pro další sledování jsou obsahem předkládané zprávy.
Keywords:
Fish management; water quality; electrofishing
Available at various institutes of the ASCR
Monitoring of fish stock in Bolevecky pond in 2023
The report summarizes results of fish monitoring in Bolevecky pond using electrofishing device. Simoutaneously, the abundance of unfavorable fish species in terms of water quality were decreased. ...
Monitoring of the population of Asp (Leuciscus aspius) in the Želivka Special Area of Conservation
Muška, Milan; Šmejkal, Marek; Bartoň, Daniel
2023 - Czech
The aim of the study was to obtain up-to-date information on the number and status of populations of the asp (Leuciscus aspius, L. 1758) in the Special Area of Conservation (SAC) Želivka. Cílem studie bylo získání aktuálních informací o početnosti a stavu populací bolena dravého (Leuciscus aspius, L. 1758) v evropsky významné lokalitě (EVL) Želivka.
Keywords:
freshwater conservation; cyprinidae; NATURA 2000
Available at various institutes of the ASCR
Monitoring of the population of Asp (Leuciscus aspius) in the Želivka Special Area of Conservation
The aim of the study was to obtain up-to-date information on the number and status of populations of the asp (Leuciscus aspius, L. 1758) in the Special Area of Conservation (SAC) Želivka.
Optical and Pneumatic Measurements on TR-U-11 Cascade
Luxa, Martin; Hála, Jindřich; Šimurda, David
2023 - English
The report contains results and evaluation of conducted optical (interferometry and schlieren technique) and pneumatic measurements on the first variant of the new tip section, intended for turbine rotor blade.
Keywords:
transonic flow; rotor turbine blade; tip section
Available at various institutes of the ASCR
Optical and Pneumatic Measurements on TR-U-11 Cascade
The report contains results and evaluation of conducted optical (interferometry and schlieren technique) and pneumatic measurements on the first variant of the new tip section, intended for turbine ...
Design analysis of the heat exchanger between the primary and the intermediate circuits of the small modular reactor DAVID
Kobylka, D.; Hrubý, Jan; Kordík, Jozef; Gabriel, Dušan; Marek, René; Isoz, Martin
2023 - Czech
The report summarizes the joint results of the Department of Nuclear Reactors FNSPE, CTU and IT CAS, in the area of thermal and hydraulic calculations of the heat exchanger between the primary and intermediate circuits of the developed small modular reactor (SMR) DAVID. The assignment parameters were further specified during control days and with updated documentation. During the analysis of the initial system parameters, it was found that the original geometric configuration of the exchanger had a completely insufficient surface for heat transfer. A decision was made, several parameters were modified and based on a series of calculations using two independent simplified models, a reasonable configuration with a significantly smaller diameter of the tubes in a significantly larger number was chosen. The pressure losses on both sides of the heat exchanger are within normal ranges and will not cause problems with the construction of these circuits. Although there are differences between the results from both used models, their comparison shows that the chosen different calculation methods lead to approximately the same results and the models do not show fundamental errors.
Keywords:
small modular reactor DAVID; thermodynamics; heat exchanger
Available at various institutes of the ASCR
Design analysis of the heat exchanger between the primary and the intermediate circuits of the small modular reactor DAVID
The report summarizes the joint results of the Department of Nuclear Reactors FNSPE, CTU and IT CAS, in the area of thermal and hydraulic calculations of the heat exchanger between the primary and ...
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 ...
Kráľova Lehota. Paleomagnetic research. Report
Elbra, Tiiu; Schnabl, Petr; Aidona, E.; Kdýr, Šimon; Uçar, Hakan; Pruner, Petr; Benediková, L.
2023 - English
Keywords:
Archeological artefact; paleomagnetic dating; rock magnetism
Available at various institutes of the ASCR
Kráľova Lehota. Paleomagnetic research. Report
Etika AI: Přehled současné debaty v kontextu energetiky
Černý, David; Trčka, M.; Kolaříková, L.; Hvorecký, J.; Pelikán, Emil; Hříbek, T.; Novotný, D.; Wiedermann, Jiří
2023 - Czech
Available at various institutes of the ASCR
Etika AI: Přehled současné debaty v kontextu energetiky
SMV-2023-33: HeNe2023
Hrabina, Jan; Holá, Miroslava; Oulehla, Jindřich; Pokorný, Pavel; Lazar, Josef; Šarlejová, Tatiana; Šlechtický, Stanislav
2023 - Czech
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references were based on absorption cells filled with ultra-pure absorption gases and they allow precise locking of the lasers with the methods of laser spectroscopy. The cells will serve as the references of optical frequencies in systems of primary length standards (633 nm wavelength). Smluvní výzkum byl zaměřen na vývoj referencí optických kmitočtů pro frekvenční stabilizaci kompaktních laserových zdrojů. Tyto optické reference jsou založena na bázi absorpčních kyvet plněných čistými plyny a dovolují stabilizaci laserových zdrojů pomocí metod laserové spektroskopie. Kyvety jsou určené k použití jako reference optických kmitočtů pro laserové normály pracující v pásmu vlnových délek 633 nm.
Keywords:
absorption cell; iodine cell; laser spectroscopy; stabilised laser; frequency stability
Available at various institutes of the ASCR
SMV-2023-33: HeNe2023
The contractual research was oriented towards the development of optical frequency references intended for the frequency stabilisation of ultra-compact laser sources. These optical references were ...
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