No (900)
Yes (18)
Number of found documents:
918
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to
Report on the removal of fish stocks in the Jablonná nature reserve with a electrofishing device
Muška, Milan; Draštík, Vladislav; Prachař, Zdeněk
2023 - Czech
Unwanted fish species were removed from the PP Jablonná wetland as a measure to support local amphibian populations. Byl proveden odlov nežádoucích druhů ryb v PP Jablonná - mokřad jako opatření na podporu místních populací obojživelníků.
Keywords:
non-indigenous species; amphibians; predation
Available at various institutes of the ASCR
Report on the removal of fish stocks in the Jablonná nature reserve with a electrofishing device
Unwanted fish species were removed from the PP Jablonná wetland as a measure to support local amphibian populations.
Fish stock survey of the Lake Sevan in 2023 – catch summary report
Prchalová, Marie
2023 - English
Catch summary report on survey of fish stock of the Lake Sevan in July 2023.\n
Keywords:
gillnets; hydroacoustics; biomass
Available at various institutes of the ASCR
Fish stock survey of the Lake Sevan in 2023 – catch summary report
Catch summary report on survey of fish stock of the Lake Sevan in July 2023.\n
Feasibility study: Hg removal technology using electrochemical methods - large unit and its comparison with alternative technology
Zach, Boleslav; Veselý, Václav; Šyc, Michal; Puchýř, R.; Foltýn, M.; Přemyslovský, P.; Pařízek, V.
2023 - Czech
In the introductory chapters, an introduction to the technology for Hg capture from combustion processes using electrochemical methods (membrane electrolyzer)and the design of a unit with capacity applicable to a typical power plant unit was made. This technology has not fully demonstrated its effectiveness from laboratory tests in semi-operational trials. These findings have been taken into account in the design of the unit for a larger power plant, therefore the design considers the use of more units in parallel, which places demands on the built-up space. The number of units used and the size of the built-up area is then matched by the high cost of the investment. Although this is a technology that does not consume any chemicals or sorbents - only electricity - it is an investment and operationally expensive technology, as can be seen from the comparison with alternative technologies. A comparison of the investment costs and cumulative expenditure (investment, reinvestment, maintenance and operating costs) for the electrochemical technology with electrolyzer and the two alternative technologies shows that if the economic aspect alone is the decisive criterion for the choice of technology, the technology of dosing Na2S solution into the scrubber absorber solution for flue gas treatment clearly comes out best at current prices. V úvodních kapitolách bylo provedeno seznámení s technologií pro záchyt Hg ze spalovacích procesů pomocí elektrochemických metod (membránový elektrolyzér), návrh jednotky kapacitně použitelné pro typický elektrárenský blok. Tato technologie při poloprovozních zkouškách plně neprokázala účinnost z laboratorních testů. Tyto poznatky byly zohledněný při návrhu jednotky pro větší elektrárenské zařízení, proto je v návrhu uvažováno s použitím více \nparalelně řazených jednotek, což klade nároky na zastavěný prostor. Počtu použitých jednotek a velikost zastavěného prostoru pak odpovídá i vysoká cena investice. Jedná se sice o technologii, která nespotřebovává žádné chemikálie ani sorbenty – pouze elektrickou energii, ale jedná se o technologii investičně i provozně nákladnou, jak plyne ze srovnání s alternativními technologiemi. Ze srovnání investiční nákladů a kumulovaných výdajů (investice, reinvestice, údržba a provozní náklady) pro technologii na základě elektrochemické metody s elektrolyzérem a dvě alternativní technologie je patrné, že pokud bude rozhodujícím kritériem pro volbu technologie pouze ekonomické hledisko, vychází jednoznačně při současných cenách nejlépe technologie dávkování roztoku Na2S do pracího roztoku absorbéru pro čištění spalin.\n
Keywords:
electroseparation technology; mercury; flue gas; wet desulfurization
Available on request at various institutes of the ASCR
Feasibility study: Hg removal technology using electrochemical methods - large unit and its comparison with alternative technology
In the introductory chapters, an introduction to the technology for Hg capture from combustion processes using electrochemical methods (membrane electrolyzer)and the design of a unit with capacity ...
Preparation of monolayer and multilayer MoS2 catalysts for decoposition of H2S
Kaluža, Luděk; Zdražil, Miroslav; Gulková, Daniela; Soukup, Karel
2023 - Czech
Monolayer catalyst MoS2/Al2O3 and multilayer (crystalline) catalysts MoS2/Al2O3 and MoS2/TiO2 were prepared. The basic structural-textural parameters of the catalysts were determined by N2 physisorption and X-ray diffraction analysis. Byl připraven monovrstevný katalyzátor MoS2/Al2O3 a vícevrstevné (krystalické) katalyzátory MoS2/Al2O3 a MoS2/TiO2. Byly stanoveny základní strukturně-texturní parametry katalyzátorů fyzisorpcí N2 a roentgenovou difrakční analýzou.
Keywords:
MoS2 monolayer; crystalline MoS; Al2O3; TiO2
Available at various institutes of the ASCR
Preparation of monolayer and multilayer MoS2 catalysts for decoposition of H2S
Monolayer catalyst MoS2/Al2O3 and multilayer (crystalline) catalysts MoS2/Al2O3 and MoS2/TiO2 were prepared. The basic structural-textural parameters of the catalysts were determined by N2 ...
Final report about research in Sokolov post mining sites in 2023 based on agreement between ENKI ops and Institute of Soil Biology and Biogeochemistry BC CAS.
Frouz, Jan; Lišková, K.; Bartuška, Martin; Badraghi, A.; Mudrák, O.; Kučera, J.; Montagnani, L.; Bednářová, E.; Šimáňová, D.; Reinshmidová, E.
2023 - Czech
The report brings main results of the research about soil and ecosystem recovery in post mining landscape near Sokolov based on agreement between ENKI ops and Institute of soil biology and biogeochemistry, BC CAS. Zpráva přináší souhrn výsledků výzkumu obnovy půd a ekosystémů na území postiženém těžbou nerostů na Sokolovsku na základě dohody mezi ENKI ops a Ústavem půdní biologie a biogeochemie BC AV ČR za rok 2023.
Keywords:
final report; research; Sokolov; post mining sites
Available at various institutes of the ASCR
Final report about research in Sokolov post mining sites in 2023 based on agreement between ENKI ops and Institute of Soil Biology and Biogeochemistry BC CAS.
The report brings main results of the research about soil and ecosystem recovery in post mining landscape near Sokolov based on agreement between ENKI ops and Institute of soil biology and ...
Report on the structure of the ichthyofauna of the Černá River and the Kancléřský Pond in 2023
Blabolil, Petr
2023 - Czech
The report summarizes the results of the survey of fish and lamprey in the Černá River and Kancléřský Pond with an electric generator. The community structure, population characteristics (abundance and size composition) and locations are evaluated. Zpráva shrnuje výsledky průzkumu ryb a mihulí v říčce Černé a Kancléřském rybníce elektrickým agregátem. Je vyhodnocena struktura společenstva, charakteristiky populací (početnost a velikostní složení) a lokalit.
Keywords:
fish; diversity; community
Available at various institutes of the ASCR
Report on the structure of the ichthyofauna of the Černá River and the Kancléřský Pond in 2023
The report summarizes the results of the survey of fish and lamprey in the Černá River and Kancléřský Pond with an electric generator. The community structure, population characteristics (abundance ...
Fish stock survey of Lake Piburg in 2023
Holubová, Michaela; Draštík, Vladislav; Peterka, Jiří
2023 - Czech
The report was prepared based on the results of complex survey of the fish stock of Lake Piburg in 2023. The aim of the ichthyological survey was to map the state of the fish populations in Lake Piburg, especially with an emphasis on estimating the abundance and biomass of individual fish species and recommending further management of the fish stock. A summary of the achieved results and a proposal for improvement of water quality via management of fish populations are included in the report. Zpráva byla zpracována na základě výsledků komplexního průzkumu rybí obsádky jezera Piburg v roce 2023. Cílem ichtyologického průzkumu bylo zmapovat stav rybích populací v jezeře Piburg, zejména s důrazem na odhad početnosti a biomasy jednotlivých druhů ryb a doporučení dalšího hospodaření s rybí obsádkou. Součástí zprávy je shrnutí dosažených výsledků a návrh na zlepšení kvality vody managementem rybích populací.
Keywords:
fish; community; diversity
Available at various institutes of the ASCR
Fish stock survey of Lake Piburg in 2023
The report was prepared based on the results of complex survey of the fish stock of Lake Piburg in 2023. The aim of the ichthyological survey was to map the state of the fish populations in Lake ...
Determining the amount of poached fish in a water reservoir based on direct simulation of the main poaching fishing methods: model case of Žlutice Reservoir
Vejřík, Lukáš
2023 - Czech
The report summarizes the results of the survey of poaching pressure on the Žlutice water reservoir carried out on the basis of contract No. PVL-1480/2022/SML. Zpráva shrnuje výsledky průzkumu pytláckého tlaku na vodní nádrži Žlutice prováděného na základě smlouvy č. PVL-1480/2022/SML.
Keywords:
predatory fish; fishing; Poachers
Available at various institutes of the ASCR
Determining the amount of poached fish in a water reservoir based on direct simulation of the main poaching fishing methods: model case of Žlutice Reservoir
The report summarizes the results of the survey of poaching pressure on the Žlutice water reservoir carried out on the basis of contract No. PVL-1480/2022/SML.
Report on the mapping of the occurence of the Chinese sleeper (Percottus glenii) in the basin of the Osecký and Voldušský stream at Osek u Rokycan
Muška, Milan; Tušer, Michal; Holubová, Michaela
2023 - Czech
Mapping of the occurrence of Chinese sleeper (Perccottus glenii) was carried out at 15 locations in the Osec and Voldušské creek basins, with the aim of checking as many locations as possible with the potential occurrence of Perccottus glenii. Bylo provedeno mapování výskytu hlavačkovce Glenova (Perccottus glenii) na 15 lokalitách v povodí Oseckého a Voldušského potoka s cílem bude prověřit co největší počet lokalit s potenciálním výskytem hlavačkovce.
Keywords:
invasive species; fish; diversity; Perccottus glenii
Available at various institutes of the ASCR
Report on the mapping of the occurence of the Chinese sleeper (Percottus glenii) in the basin of the Osecký and Voldušský stream at Osek u Rokycan
Mapping of the occurrence of Chinese sleeper (Perccottus glenii) was carried out at 15 locations in the Osec and Voldušské creek basins, with the aim of checking as many locations as possible with the ...
Fish stock survey of the Lake Sevan in 2023 – final report
Prchalová, Marie; Kubečka, Jan
2023 - English
Final report on survey of fish stock of the Lake Sevan in July 2023.
Keywords:
gillnets; hydroacoustics; biomass
Available at various institutes of the ASCR
Fish stock survey of the Lake Sevan in 2023 – final report
Final report on survey of fish stock of the Lake Sevan in July 2023.
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