No (168)
Number of found documents:
168
Published from
to
SMV-2017-706: Tests of apparatus for determination of 3H and 14C in air
Večeřa, Zbyněk
2017 - Czech
Testing of ”V3H14C” apparatus designed for 3H and 14C sampling from the air. The samples are captured into sorbents, silica gel for 3H (THO, T2O), and sodium hydroxide for 14C (14CO2) that are subsequently in laboratory analyzed for quantification of radioactive emissions of 3H and 14C from nuclear power plants e.g. Testování a vývoj zařízení řady ”V3H14C”, která jsou určena k odběru vzorků 3H a 14C ze vzduchu. Vzorky se zachycují do sorbentů, sorbentem pro 3H (THO, T2O) je silikagel, sorbentem pro 14C (14CO2) je vodný roztok 3M hydroxidu sodného. Získané vzorky jsou určeny k následné laboratorní analýze. Analýzou zjištěné hodnoty aktivit odebraných vzorků slouží ke stanovení bilance vypouštěného 3H a 14C např. z jaderných zařízení.
Keywords:
testing; air; radioactive emissions
Available at various institutes of the ASCR
SMV-2017-706: Tests of apparatus for determination of 3H and 14C in air
Testing of ”V3H14C” apparatus designed for 3H and 14C sampling from the air. The samples are captured into sorbents, silica gel for 3H (THO, T2O), and sodium hydroxide for 14C (14CO2) that are ...
SMV-2017-742: Testování možností separace krátkých oligonukleotidů ze vzorku dodaného f. BioVendor, a.s.
Foret, František
2017 - Czech
Available at various institutes of the ASCR
SMV-2017-742: Testování možností separace krátkých oligonukleotidů ze vzorku dodaného f. BioVendor, a.s.
Determination of levoglucosan and dehydroabietic acid in urban aerosol
Coufalík, Pavel; Čmelík, Richard; Křůmal, Kamil; Čapka, Lukáš; Mikuška, Pavel
2017 - Czech
The analytical method involving aerosol sampling into water, quantitative pre-concentration of levoglucosan and dehydroabietic acid, and their determination by LC-MS was developed in this work. Cílem této práce byl vývoj analytické metody pro stanovení levoglukosanu a dehydroabietové kyseliny v aerosolu pomocí LC-MS s využitím přímého vzorkování aerosolu do vody.
Keywords:
CGU-ACTJU sampler; levoglucosan; dehydroabietic acid
Available at various institutes of the ASCR
Determination of levoglucosan and dehydroabietic acid in urban aerosol
The analytical method involving aerosol sampling into water, quantitative pre-concentration of levoglucosan and dehydroabietic acid, and their determination by LC-MS was developed in this work.
Determination of inorganic anions in air by modernized aerosol sampler
Čapka, Lukáš; Mikuška, Pavel; Večeřa, Zbyněk
2017 - Czech
Combination of original ACTJU sampler with water-based condensation growth unit (CGU) located upstream of the ACTJU allows quantitative sampling of aerosol particles down to a few nm in diameter. The ACTJU effluent is permanently sucked out from the sampler and online analysed for particulate water-soluble species by ion chromatography. Spojení původního vzorkovače ACTJU s kondenzační růstovou jednotkou na bázi vody (CGU), umístěné před ACTJU, umožnilo vzorkovat částice aerosolu o rozměrech v řádech nanometrů. Odtah z ACTJU je kontinuálně odsáván a v něm obsažené vodou rozpustné sloučeniny online analyzovány pomocí iontové chromatografie.
Keywords:
CGU-ACTJU sampler; on-line analysis; atmospheric aerosol
Available at various institutes of the ASCR
Determination of inorganic anions in air by modernized aerosol sampler
Combination of original ACTJU sampler with water-based condensation growth unit (CGU) located upstream of the ACTJU allows quantitative sampling of aerosol particles down to a few nm in diameter. The ...
Characterization of organic compounds in PM1aerosol in Kosetice and Brno in winter season 2017
Křůmal, Kamil; Mikuška, Pavel; Večeřa, Zbyněk
2017 - Czech
In this work, the organic compounds and organic markers used for the identification of sources of aerosols were measured. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) and polycyclic aromatic hydrocarbons (emissions from traffic and incomplete combustion) were observed especially. Hopanes, steranes (traffic, coal combustion) and alkanes were next groups of analysed organic compounds. V této práci byly měřeny organické sloučeniny a markery, které slouží pro identifikaci zdrojů atmosférických aerosolů. Byly analyzovány anhydridy monosacharidů (emise ze spalování biomasy), polycyklické aromatické uhlovodíky (emise z dopravy a nedokonalého spalování), hopany a sterany (doprava, spalování uhlí) a alkany.
Keywords:
atmospheric aerosol; PM1; organic markers
Available at various institutes of the ASCR
Characterization of organic compounds in PM1aerosol in Kosetice and Brno in winter season 2017
In this work, the organic compounds and organic markers used for the identification of sources of aerosols were measured. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) ...
SMV-2016-719: Detection and identification of sources of nanoparticles produced by military equipment
Večeřa, Zbyněk
2016 - Czech
In the study, which took place in a military training area "Vyškov" and simulators University of Defence, we monitored and identified the sources nanoparticles produced various kinds of military equipment. Preliminary results indicate that the source of nanoparticles are especially exhaust gases of engines powering military equipment and studied after shoot fumes. Potential impact of nanoparticles on the service staff of military equipment is currently being evaluated. V rámci studie, která probíhala ve vojenském výcvikovém prostoru „Vyškov“ a na trenažerech Univerzity obrany v Brně, se sledovaly zdroje nanočástic produkovaných různými druhy vojenské techniky. Předběžné výsledky ukazují, že zdrojem nanočástic jsou zejména výfukové zplodiny motorů pohánějících studovanou vojenskou techniku a povýstřelové zplodiny. Možný vliv nanočástic na obsluhu vojenské techniky se v současnosti vyhodnocuje.
Keywords:
nanoparticles
Available on request at various institutes of the ASCR
SMV-2016-719: Detection and identification of sources of nanoparticles produced by military equipment
In the study, which took place in a military training area "Vyškov" and simulators University of Defence, we monitored and identified the sources nanoparticles produced various kinds of military ...
Methodology of application of essential oils and their components to achieve fungistatic effect in depositories paper artifacts endangered by microbial attack due to high relative humidity
Milichovský, M.; Večeřa, Zbyněk; Neuvirt, J.
2016 - Czech
Methodology concerns the protection of artifacts on paper using essential oils. It is the sum of knowledge, policies and procedures, as these substances or their analogs artificially prepared to use so as to avoid unnecessary mistakes to be protected negative impact on lignocellulosic materials. Metodika se týká ochrany artefaktů na papíře s použitím esenciálních olejů. Je souhrnem znalostí, zásad a postupů, jak tyto látky nebo jejich analogy připravené uměle používat a vyvarovat se tak zbytečných chyb až negativních dopadů na ochraňované lignocelulózové materiály.
Keywords:
essential oils; archived paper materials; relative humidity; microbial attack
Available on request at various institutes of the ASCR
Methodology of application of essential oils and their components to achieve fungistatic effect in depositories paper artifacts endangered by microbial attack due to high relative humidity
Methodology concerns the protection of artifacts on paper using essential oils. It is the sum of knowledge, policies and procedures, as these substances or their analogs artificially prepared to use ...
SMV-2016-736: Reaction of plants to presence of CdO nanoparticles in air
Večeřa, Zbyněk
2016 - Czech
Study of the impact of elevated concentrations of nanoparticles of cadmium oxide in the air on Cd content in coniferous Norway spruce (Picea abies) and deciduous beech (Fagus sylvatica). Estimation of the sensitivity of urban forests and woody species to the effects of abiotic stresses and extreme climatic events. Studie vlivu zvýšené koncentrace nanočástic oxidu kademnatého v ovzduší na obsah Cd v jehličnatém smrku ztepilém (Picea abies) a listnatém buku lesním (Fagus sylvatica). Odhad citlivosti městských lesů a dřevin k působení abiotických stresů a extrémních klimatických událostí.
Keywords:
CdO nanoparticles; plants; Picea abies; Fagus sylvatica
Available on request at various institutes of the ASCR
SMV-2016-736: Reaction of plants to presence of CdO nanoparticles in air
Study of the impact of elevated concentrations of nanoparticles of cadmium oxide in the air on Cd content in coniferous Norway spruce (Picea abies) and deciduous beech (Fagus sylvatica). Estimation of ...
Organic compounds on dust particles in emissions of gasoline cars
Mikuška, Pavel; Křůmal, Kamil; Coufalík, Pavel; Večeřa, Zbyněk; Vojtíšek, M.
2015 - Czech
In this study, chemical composition of emissions of two gasoline cars (Ford-Focus; DISI and Skoda Fabia; MPI) was compared. Two different fuels and working cycles were applied during experiments. V této studii bylo porovnáváno chemické složení prachových částic v emisích dvou vozidel s benzínovým motorem, Ford-Focus (motor s přímým vstřikováním, DISI) a Škoda Fabia (motor s vícebodovým vstřikováním, MPI). Při testech byla použita rozdílná paliva a různé provozní cykly.
Keywords:
gasoline; traffic emission; organic compounds
Available on request at various institutes of the ASCR
Organic compounds on dust particles in emissions of gasoline cars
In this study, chemical composition of emissions of two gasoline cars (Ford-Focus; DISI and Skoda Fabia; MPI) was compared. Two different fuels and working cycles were applied during experiments.
Organic compounds in PM2.5 aerosol in Ostrava in winter season
Mikuška, Pavel; Křůmal, Kamil; Večeřa, Zbyněk
2015 - Czech
Contribution deals with the study of chemical composition of atmospheric aerosols fraction PM2.5 in Ostrava-Radvanice with focus on analysis selected organic compounds, so-called molecular markers that are used for identification of emission sources of aerosols. Příspěvek se zabývá studiem chemického složení atmosférických aerosolů frakce PM2.5 v Ostravě-Radvanicích se zaměřením na analýzu vybraných organických sloučenin, tzv. molekulových markerů, které jsou používány při identifikaci emisních zdrojů aerosolů.
Keywords:
atmospheric aerosol; organic markers; emission sources
Available on request at various institutes of the ASCR
Organic compounds in PM2.5 aerosol in Ostrava in winter season
Contribution deals with the study of chemical composition of atmospheric aerosols fraction PM2.5 in Ostrava-Radvanice with focus on analysis selected organic compounds, so-called molecular markers ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases