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Vertical distribution of black carbon (BC)
Julaha, Kajal
2022 - English
Black Carbon (BC) is one of the leading contributors affecting our climate system. Absorbing at all visible wavelengths results in a warmer environment and thus has been considered the second most important contributor to global warming after carbon dioxide. The primary sources of BC aerosol are the incomplete combustion of fossil fuels and biomass burning. However, the composition of atmospheric aerosols varies with the height above the Earth’s surface. Recent studies have shown significant uncertainties (about 25%) in model simulations of the vertical BC distribution, both on the regional and global levels. BC’s vertical transport is suggested to be one area where the models still differ significantly,4,5 highlighting further investigation.
Keywords:
black carbon; fossil fuels and biomass; atmospheric aerosol
Available in a digital repository NRGL
Vertical distribution of black carbon (BC)
Black Carbon (BC) is one of the leading contributors affecting our climate system. Absorbing at all visible wavelengths results in a warmer environment and thus has been considered the second most ...
Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor
Lucáková, Simona
2022 - English
In our laboratory, we employed an electrocoagulation process with iron sacrificial anode leading to the separation of Chlorella vulgaris cells with high efficiency and at the same time acceptable low contamination of separated biomass by iron. Comparing to only centrifugation, the total energy costs of harvesting using electrocoagulation as a pre-concentration step prior to centrifugation were reduced by more than 80%. After extensive study of the influence of relevant process parameters.
Keywords:
chlorella vulgaris; electrocoagulation; biomass; iron
Available in a digital repository NRGL
Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor
In our laboratory, we employed an electrocoagulation process with iron sacrificial anode leading to the separation of Chlorella vulgaris cells with high efficiency and at the same time acceptable low ...
Tetracycline degradation using catalysts of platinum coated over CeO2 and CeO2ZrO2
Bourassi, Mahdi
2022 - English
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance their thermophysical properties and make them more suitable for electrical and thermal energy storage, and heat transfer applications.
Keywords:
catalytic experiments; tetracycline; water depollution
Available in a digital repository NRGL
Tetracycline degradation using catalysts of platinum coated over CeO2 and CeO2ZrO2
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance their thermophysical properties and make them more suitable for electrical and ...
Ambient organic aerosol origin at rural background site in the Czech Republic
Lhotka, Radek
2022 - English
Source apportionment of organic aerosols (OA) at background sites is one of the important tasks of the current air quality protection. OA are emitted directly from primary sources or formed in the atmosphere via the oxidation of gas-phase precursors with subsequent partitioning resulting in low-volatility products into the particle phase.
Keywords:
organic aerosol; air quality protection; ural background site
Available in a digital repository NRGL
Ambient organic aerosol origin at rural background site in the Czech Republic
Source apportionment of organic aerosols (OA) at background sites is one of the important tasks of the current air quality protection. OA are emitted directly from primary sources or formed in the ...
Physicochemical Properties and Origin of PM1 Measured at a Rural Background Site
Pokorná, Petra; Zíková, Naděžda; Vodička, Petr; Lhotka, Radek; Mbengue, Saliou; Holubová Šmejkalová, A.; Riffault, V.; Ondráček, Jakub; Schwarz, Jaroslav; Ždímal, Vladimír
2022 - English
This study assesses the variability of organic aerosol (OA) sources monitored at the rural background site Frýdlant. Non-refractory PM1 was evaluated in two seasons of\n2021. The positive matrix factorization with the multi-linear engine was used to determine the sources of OA at Frýdlant site, with four factors resolved both in winter and\nsummer.
Keywords:
organic aerosols; positive matrix factorization with multi-linear engine; non-refractive aerosol
Available in a digital repository NRGL
Physicochemical Properties and Origin of PM1 Measured at a Rural Background Site
This study assesses the variability of organic aerosol (OA) sources monitored at the rural background site Frýdlant. Non-refractory PM1 was evaluated in two seasons of\n2021. The positive matrix ...
An Improved Method for Calculation of the Wet Particle Diameter and tha Kappa Parameters from the CCN Data
Wagner, Zdeněk; Mishra, Gaurav; Moravec, Pavel; Zíková, Naděžda
2022 - English
The study of particle size distribution and hygroscopic growth is important for several reasons. Particle diameter is available experimentally, but the relationship of \nhygroscopic growth to cloud condensation nuclei (CCN) and AMS data can be modeled mathematically. In this paper, we present an improved algorithm for calculating the wet \nparticle diameter and the κ parameter that is faster, more accurate, and more reliable than the algorithm used by other authors.\n
Keywords:
critical diameter; wet particle diameter; CCN
Available in a digital repository NRGL
An Improved Method for Calculation of the Wet Particle Diameter and tha Kappa Parameters from the CCN Data
The study of particle size distribution and hygroscopic growth is important for several reasons. Particle diameter is available experimentally, but the relationship of \nhygroscopic growth to cloud ...
Separation of biological agents by divergent-flow isoelectric focusing as a tool for their rapid identification by MALDI-TOF MS
Duša, Filip; Šalplachta, Jiří; Horká, Marie; Lunerová, K.; Rosenbergová, K.; Kubíček, O.
2022 - English
We presented DF-IEF chip which proved as an efficient method for separation of biological agents, and it enabled sensitive identification of inactivated microorganisms with MALDI-TOF MS compared to unseparated samples.
Keywords:
bacteria; isoelectric; divergent
Available in digital repository of the ASCR
Separation of biological agents by divergent-flow isoelectric focusing as a tool for their rapid identification by MALDI-TOF MS
We presented DF-IEF chip which proved as an efficient method for separation of biological agents, and it enabled sensitive identification of inactivated microorganisms with MALDI-TOF MS compared to ...
Development of portable ultra-high performance liquid chromatograph
Šesták, Jozef; Gogaľová, Zuzana; Lunerová, K.
2022 - English
Recently we have successfully proved the concept of experimental portable liquid chromatograph which utilizes a simple hydraulic scheme and a universal optical detector capable of simultaneous absorbance and fluorescence monitoring. Here we present some latest improvements of our concept.
Keywords:
portable liquid chromatograph; miniaturization; microcolumn liquid chromatography
Available in digital repository of the ASCR
Development of portable ultra-high performance liquid chromatograph
Recently we have successfully proved the concept of experimental portable liquid chromatograph which utilizes a simple hydraulic scheme and a universal optical detector capable of simultaneous ...
Multi-cationic aminopyrene-based tag for oligosaccharide analysis by capillary electrophoresis with laser-induced fluorescence detection
Smolková, Denisa; Duša, Filip; Čmelík, Richard; Lavická, Jana
2022 - English
We present further optimization of the labeling method with a new multi-cationic aminopyrene-based tag, APTMP (4,4’,4’’-(8-aminopyrene-1,3,6-trisulfonyl)tris(1-methylpiperazine) in order to achieve higher resolution and sensitivity of CE/LIF analysis of APTMP labeled oligosaccharides.
Keywords:
oligosaccharides labeling; CE/LIF; APTMP
Available in digital repository of the ASCR
Multi-cationic aminopyrene-based tag for oligosaccharide analysis by capillary electrophoresis with laser-induced fluorescence detection
We present further optimization of the labeling method with a new multi-cationic aminopyrene-based tag, APTMP (4,4’,4’’-(8-aminopyrene-1,3,6-trisulfonyl)tris(1-methylpiperazine) in order to achieve ...
The map of quercetin and its derivatives occurence in parts of onion (Allium cepa L.) varieties
Benešová, K.; Lojková, L.; Kudláčková, Barbora
2022 - English
Determination of quercetin and its derivatives in dependency on the onion variety and the part from which it was extracted.
Keywords:
onion; quercetin; pressurized liquid extraction
Available in digital repository of the ASCR
The map of quercetin and its derivatives occurence in parts of onion (Allium cepa L.) varieties
Determination of quercetin and its derivatives in dependency on the onion variety and the part from which it was extracted.
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