Number of found documents: 1936
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Hydrotreating over Silica-Alumina Supported Catalysts
Gulková, Daniela; Vít, Zdeněk; Kaluža, Luděk
2019 - English
They are studied for possible use in deep hydrodesulfurization (HDS)1 while they have not been investigated for the HDS parallel with hydrodeoxygenation (HDO)2. The aim was to find the effect of active phase and support of Pd and PdPt catalysts on activity and selectivity in HDS of 4,6-dimethyldibenzothiophene (DMDBT) and HDS/HDO of l-benzothiophene/octanoic acid (BT/OA). Keywords: catalysts; silica-alumina; hydrodesulfurization Available in a digital repository NRGL
Hydrotreating over Silica-Alumina Supported Catalysts

They are studied for possible use in deep hydrodesulfurization (HDS)1 while they have not been investigated for the HDS parallel with hydrodeoxygenation (HDO)2. The aim was to find the effect of ...

Gulková, Daniela; Vít, Zdeněk; Kaluža, Luděk
Ústav chemických procesů, 2019

NMR Metabolomics Study of the Association between Pancreatic Cancer and Diabetes Mellrtus.
Michálková, Lenka; Horník, Štěpán; Sýkora, Jan; Habartová, L.; Setnička, V.
2019 - English
In our study, 1H NMR metabolomics was employed to plasma samples of pancreatic cancer patients, individuals with long-term diabetes mellitus type 2 (lasting more than 5 years) and healthy controls. The NMR analyses were followed by establishing a statistical model based on principal component analysis and discriminant analysis. The aim was to discover differences between these groups and to define a potential biomarker panel. The statistical evaluation of metabolomics-based profiles provided high values of sensitivity and specificity. Subsequently, plasma samples of the risk group, specifically patients with recently diagnosed diabetes mellitus with a duration of <3 years (possible T3cDM), were analysed and the possibility of PC development was predicted. The achieved results showed strong potential of 1H NMR metabolomics to establish a biomarker panel that would facilitate the early diagnosis of PC and the possibility identify diabetic individuals, who are at risk of developing PC. Keywords: pancreatic cancer; nmr analyses; biomarker panel Available in a digital repository NRGL
NMR Metabolomics Study of the Association between Pancreatic Cancer and Diabetes Mellrtus.

In our study, 1H NMR metabolomics was employed to plasma samples of pancreatic cancer patients, individuals with long-term diabetes mellitus type 2 (lasting more than 5 years) and healthy controls. ...

Michálková, Lenka; Horník, Štěpán; Sýkora, Jan; Habartová, L.; Setnička, V.
Ústav chemických procesů, 2019

Dialytic Separation of Anions from DMSO Solution Facilitated by dendritic Receptors.
Cuřínová, Petra; Winkler, Maximilian; Krupková, Alena; Budka, J.; Wun, Ch.N.; Blechta, Vratislav; Červenková Šťastná, Lucie; Sýkora, Jan; Strašák, Tomáš
2019 - English
As the dialytic tubing is impermeable for big molecules of receptor, the anions crossing the barrier of dialytic tubing to form complex with the receptor stay entrapped inside and can be removed from the solution. NMR methods were used to study the complexation properties of given receptors as well as to determine the concentration changes during dialytic experiments. Keywords: anions; receptor; dialytic experiments Available in a digital repository NRGL
Dialytic Separation of Anions from DMSO Solution Facilitated by dendritic Receptors.

As the dialytic tubing is impermeable for big molecules of receptor, the anions crossing the barrier of dialytic tubing to form complex with the receptor stay entrapped inside and can be removed from ...

Cuřínová, Petra; Winkler, Maximilian; Krupková, Alena; Budka, J.; Wun, Ch.N.; Blechta, Vratislav; Červenková Šťastná, Lucie; Sýkora, Jan; Strašák, Tomáš
Ústav chemických procesů, 2019

Influence of Surface Treatment of Thin-Film Composite Membrane on Separation of Carbon Dioxide from Biogas.
Morávková, Lenka; Kárászová, Magda; Petrusová, Zuzana; Izák, Pavel
2019 - English
The effect of the various wetting procedure on the membrane performance was studied [1]. Spraying is clearly more efficient than spreading water on the top of the membrane with a brush and results in higher methane purity. Spraying ensures a more uniform distribution of the water on the skin layer of the membrane, leading to much higher CO2 permeation through the membrane and higher CH4 content in the retentate stream. Keywords: biogas; separation; carbon dioxide Available in a digital repository NRGL
Influence of Surface Treatment of Thin-Film Composite Membrane on Separation of Carbon Dioxide from Biogas.

The effect of the various wetting procedure on the membrane performance was studied [1]. Spraying is clearly more efficient than spreading water on the top of the membrane with a brush and results in ...

Morávková, Lenka; Kárászová, Magda; Petrusová, Zuzana; Izák, Pavel
Ústav chemických procesů, 2019

Magnesium Silicide and Germanide from Electronic Waste as a Source of CVD Precursors for Potential Catalysts Preparation.
Bumba, Jakub
2019 - English
This work is focused on the regeneration of silicon and germanium from electronic waste and on the possibility of intermediate products utilization e.g. for chemical vapour deposition (CVD) and catalysis. Keywords: electronic waste; silicon and germanium; catalysts preparation Available in a digital repository NRGL
Magnesium Silicide and Germanide from Electronic Waste as a Source of CVD Precursors for Potential Catalysts Preparation.

This work is focused on the regeneration of silicon and germanium from electronic waste and on the possibility of intermediate products utilization e.g. for chemical vapour deposition (CVD) and ...

Bumba, Jakub
Ústav chemických procesů, 2019

Five Years of Aerosol Particles Growth Rate Measurements at Four Background Stations in the Czech Republic.
Holubová Šmejkalová, Adéla
2019 - English
In this work we used data on aerosol particle number size distribution to investigate if there are any differences or similarities in the growth rate at four background stations located in different types of environment (urban, industrial, agricultural and suburban). Keywords: atmospheric aerosols; model simulations; background stations Available in a digital repository NRGL
Five Years of Aerosol Particles Growth Rate Measurements at Four Background Stations in the Czech Republic.

In this work we used data on aerosol particle number size distribution to investigate if there are any differences or similarities in the growth rate at four background stations located in different ...

Holubová Šmejkalová, Adéla
Ústav chemických procesů, 2019

Synthetic Pathways Leading to Phosphahelicenes.
Beránek, Tomáš
2019 - English
The goal of this work is to explore possible synthetic ways leading to these new members of the helicene family.\n Keywords: sythetic way; phosphorus; helicenes Available in a digital repository NRGL
Synthetic Pathways Leading to Phosphahelicenes.

The goal of this work is to explore possible synthetic ways leading to these new members of the helicene family.\n

Beránek, Tomáš
Ústav chemických procesů, 2019

The Influence of Surface Treatment and Activation of Thin Film Composite Membranes with Plasma Discharge and Determination of Their Physicochemical Properties.
Slepička, P.; Setničková, Kateřina; Petrusová, Zuzana; Slepičková-Kasálková, N.; Kolská, Z.; Siegel, J.; Jansen, J. C.; Esposito, E.; Fuoco, A.; Švorčík, V.; Izák, Pavel
2019 - English
In this work we have focused on the surface treatment and activation of membranes (73 AC and 82 V) with plasma discharge and determination of their physicochemical properties. The surface morphology, wettability, zeta potential of pristine and plasma- treated membranes were tested and compared. Keywords: membranes; plasma treatment; spectroscopy Available in digital repository of the ASCR
The Influence of Surface Treatment and Activation of Thin Film Composite Membranes with Plasma Discharge and Determination of Their Physicochemical Properties.

In this work we have focused on the surface treatment and activation of membranes (73 AC and 82 V) with plasma discharge and determination of their physicochemical properties. The surface morphology, ...

Slepička, P.; Setničková, Kateřina; Petrusová, Zuzana; Slepičková-Kasálková, N.; Kolská, Z.; Siegel, J.; Jansen, J. C.; Esposito, E.; Fuoco, A.; Švorčík, V.; Izák, Pavel
Ústav chemických procesů, 2019

Origin of Atmospheric Aerosol Based on Data with Different Time Resolution at the National Atmospheric Observatory Košetice.
Pokorná, Petra; Zíková, Naděžda; Lhotka, Radek; Vodička, Petr; Makeš, Otakar; Mbengue, Saliou; Holubová Šmejkalová, Adéla; Schwarz, Jaroslav; Ondráček, Jakub; Ždímal, Vladimír
2019 - English
To improve the air quality the underlying causalities must be well understood,particularly when it comes to aspects such as PM concentration, sources and their origin. The aim of this work was to determine air pollution origin at NAOK based on atmospheric aerosol (AA) data of different time resolution measured during intensive summer campaing. Keywords: PNSD; size resolved chemical composition; source apportionment Available at various institutes of the ASCR
Origin of Atmospheric Aerosol Based on Data with Different Time Resolution at the National Atmospheric Observatory Košetice.

To improve the air quality the underlying causalities must be well understood,particularly when it comes to aspects such as PM concentration, sources and their origin. The aim of this work was to ...

Pokorná, Petra; Zíková, Naděžda; Lhotka, Radek; Vodička, Petr; Makeš, Otakar; Mbengue, Saliou; Holubová Šmejkalová, Adéla; Schwarz, Jaroslav; Ondráček, Jakub; Ždímal, Vladimír
Ústav chemických procesů, 2019

Studium mokré depozice atmosférickjého aerosolu s využitím horizontálních hydrometeorů.
Zíková, Naděžda; Pokorná, Petra; Pešice, Petr; Sedlák, Pavel; Ždímal, Vladimír
2019 - English
Atmosférický aerosol (AA) ovlivňuje nejen vznik oblačnosti, ale také další vlastnosti oblaků. Interakce mezi AA a oblačností může být zkoumána i u mlh, resp. nízké oblačnosti. Příkladem stanice vhodné k takovému výzkumu je stanice Milešovka, kde se mlha (nebo nízká oblačnost) nachází 55 % času (Fišák, Tesař, & Fottová, 2009). Zde proto bylo provedeno měření za účelem popisu vlivu mlh na početní velikostní distribuce AA a aktivovaných nukleačních jader.\n\n Processes between atmospheric aerosol (AA) and clouds, source of large uncertainty in weather and climate changes estimations, were described on fogs at Milešovka, meteorological observatory of the Institute of Atmospheric Physics. For the description of the AA properties, online measurement of outdoor particle number size distribution (PNSD) in the size range 10 nm – 20 μm was conducted using SMPS and APS spectrometers. The sampling system consisted of a heated whole air inlet, and PM2.5 sampling head, being switched by an automatic valve. From the difference between PNSD sampled by whole air inlet and by PM2.5 inlet, PNSD of activated particles (aPNSD) was calculated. The aPNSDs differ with hydrometeor type and depend on air mass history, with a stronger influence on freezing fog AA. Keywords: atmospheric aerosols; fog; wet deposition Available at various institutes of the ASCR
Studium mokré depozice atmosférickjého aerosolu s využitím horizontálních hydrometeorů.

Atmosférický aerosol (AA) ovlivňuje nejen vznik oblačnosti, ale také další vlastnosti oblaků. Interakce mezi AA a oblačností může být zkoumána i u mlh, resp. nízké oblačnosti. Příkladem stanice vhodné ...

Zíková, Naděžda; Pokorná, Petra; Pešice, Petr; Sedlák, Pavel; Ždímal, Vladimír
Ústav chemických procesů, 2019

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