Now showing items 1-20 of 89

  • Accumulation of Poly(3-hydroxybutyrate) Helps Bacterial Cells to Survive Freezing 

    Obruča, Stanislav; Sedláček, Petr; Mravec, Filip; Kučera, Dan; Benešová, Pavla; Márová, Ivana (PLoS, 2016-06-17)
    Accumulation of polyhydroxybutyrate (PHB) seems to be a common metabolic strategy adopted by many bacteria to cope with cold environments. This work aimed at evaluating and understanding the cryoprotective effect of PHB. ...
  • Aerosol Flow Homogenization in the Spray Polyphenylene Vinylene Thin Film Deposition 

    Milenkov, Viktor; Vrchotová, Jana; Zhivkov, Ivaylo; Yordanov, Rumen S.; Vala, Martin; Mladenova, Daniela; Weiter, Martin (IOP Publishing, 2014-05-15)
    Two different spray deposition (SD) techniques were compared on polyvinylene (MDMO-PPV) used as a model material. SD and homogenized (h-SD) techniques were compared. Films of about 1 micron thickness were prepared by SD ...
  • Aggregation behavior of novel hyaluronan derivatives-a fluorescence probe study 

    Mravec, Filip; Pekař, Miloslav; Velebný, Vladimír (Springer-Verlag, 2008-11-01)
    Aggregation properties of hydrophobized hyaluronan (hHA) in different molecular weights and degree of substitution were studied by pyrene and perylene fluorescence method. The critical aggregation concentration (cac) was ...
  • Application of brick grind dust in systems based on Portland cement 

    Palovčík, Jakub; Opravil, Tomáš; Novotný, Radoslav; Másilko, Jiří (IOP Publishing, 2018-07-12)
    This paper deals with possibilities of application brick-grind-dust which is a secondary product from manufacturing of grinded bricks. This product is usually partially returned to brick manufacturing or buried on a land ...
  • Application of fly ashes from fluid bed coal combustion within refractory materials 

    Kotrla, Jan; Šoukal, František; Másilko, Jiří; Švec, Jiří; Janča, Martin (IOP Publishing, 2018-07-12)
    The study deals with the possibility of utilization of fly ashes from coal combustion in refractory materials and its influence on resulting properties of the material. The effect of bed and filter ash addition on the ...
  • Application of low temperature plasmas for restoration/conservation of archaeological objects 

    Krčma, František; Blahová, Lucie; Miková, Petra; Graham, William; Grossmannová, Hana; Holíková, Lenka; Horák, Jakub; Janová, Drahomíra; Kelsey, Colin Patrick; Kozáková, Zdenka; Mazánková, Věra; Procházka, Michal; Přikryl, Radek; Řádková, Lucie; Sázavská, Věra; Vašíček, Michal; Veverková, Radka; Zmrzlý, Martin (IOP Publishing, 2014-12-18)
    The low temperature low-pressure hydrogen based plasmas were used to study the influence of processes and discharge conditions on corrosion removal. The capacitive coupled RF discharge in the continuous or pulsed regime ...
  • The ash from fluidized bed combustion as a donor of sulfates to the Portland clinker 

    Beranová, Denisa; Bartoníčková, Eva; Koplík, Jan; Opravil, Tomáš (Elsevier, 2016-08-03)
    The paper deals with possibilities of using solid residues from fluidized bed combustion of coal, bed and filter ash in the production of composite Portland cements. The ash from fluidized bed combustion contains a high ...
  • Atomic force microscopy analysis of nanoparticles in non-ideal conditions 

    Klapetek, Petr; Valtr, Miroslav; Nečas, David; Salyk, Ota; Dzik, Petr (Springer Open, 2011-08-30)
    Nanoparticles are often measured using atomic force microscopy or other scanning probe microscopy methods. For isolated nanoparticles on flat substrates, this is a relatively easy task. However, in real situations, we often ...
  • Barrier SiO2-like coatings for archaeological artefacts preservation 

    Procházka, Michal; Blahová, Lucie; Krčma, František (IOP Publishing, 2016-11-04)
    Thin film chemical vapour deposition technique has been used for more than 50 years. Introducing organosilicones as precursors, e.g. hexamethyldisiloxane (HMDSO) or tetraethylorthosilicate (TEOS), brought new possibilities ...
  • Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materials 

    Kalina, Lukáš; Bílek, Vlastimil; Kiripolský, Tomáš; Novotný, Radoslav; Másilko, Jiří (MDPI, 2018-09-19)
    Cement kiln by-pass dust (CKD) is a fine-grained by-product of Portland clinker manufacturing. Its chemical composition is not suitable for returning back into feedstock and, therefore, it has to be discharged. Such an ...
  • Characterization of Electroless Ni–P Coating Prepared on a Wrought ZE10 Magnesium Alloy 

    Buchtík, Martin; Kosár, Petr; Wasserbauer, Jaromír; Tkacz, Jakub; Doležal, Pavel (MDPI, 2018-03-07)
    Electroless low-phosphorus Ni–P coating was deposited on a wrought ZE10 magnesium alloy including an advanced pre-treatment of the material surface before deposition. Uniform Ni–P coating with an average thickness of 10 ...
  • The Characterization of Fixation of Ba, Pb, and Cu in Alkali-Activated Fly Ash/Blast Furnace Slag Matrix 

    Koplík, Jan; Kalina, Lukáš; Másilko, Jiří; Šoukal, František (MDPI, 2016-06-30)
    The fixation of heavy metals (Ba, Cu, Pb) in an alkali-activated matrix was investigated. The matrix consisted of fly ash and blast furnace slag (BFS). The mixture of NaOH and Na-silicate was used as alkaline activator. ...
  • Characterization of Powder Metallurgy Processed Pure Magnesium Materials for Biomedical Applications 

    Březina, Matěj; Minda, Jozef; Doležal, Pavel; Krystýnová, Michaela; Fintová, Stanislava; Zapletal, Josef; Wasserbauer, Jaromír; Ptáček, Petr (MDPI AG, 2017-10-31)
    Magnesium and its alloys are modern lightweight materials applicable in a wide range of industrial fields from aerospace and automotive to biomedical applications. Its main advantages are a good strength to weight ratio ...
  • Cold-setting Inkjet Printed Titania Patterns Reinforced by Organosilicate Binder 

    Králová, Marcela; Dzik, Petr; Kašpárek, Vít; Veselý, Michal; Cihlář, Jaroslav (MDPI, 2015-09-11)
    Preparation of photocatalytic active layers by cold-setting inkjet printing. Comparison of printed, UV-cured and sintered layers; their physical properties, as well as, photocatalytic and electrophotocatalytic properties.
  • Comparative Study of Binding Behaviour of Cu(II) with Humic Acid and Simple Organic Compounds by Ultrasound Spectrometry 

    Klučáková, Martina (Bentham Science Publihers, 2011-11-12)
    Several simple organic (hydroxy)acids as models of principal functional moieties of humic acids and the copper ion as a model ion were used to investigate the metal-humic interactions. The quantum chemical calculations ...
  • Comparison of Electrochemical Methods for the Evaluation of Cast AZ91 Magnesium Alloy 

    Tkacz, Jakub; Minda, Jozef; Fintová, Stanislava; Wasserbauer, Jaromír (MDPI AG, 2016-11-15)
    Linear polarization is a potentiodynamic method used for electrochemical characterization of materials. Obtained values of corrosion potential and corrosion current density offer information about material behavior in ...
  • Complexation of Copper(II) with Humic Acids Studied by Ultrasound Spectrometry 

    Klučáková, Martina (Hindawi Publishing Corporation, 2012-05-14)
    Copper biogeochemistry is controlled by bonding to natural organic matter. The soluble forms of bonded copper can be more biologically active due to the higher migration in environmental systems and instability of some ...
  • DC Underwater Capillary Discharge With Symmetrical Hole: Diagnostics and Pumping Effect 

    Totová, Ivana; Krčma, František; Nikiforov, Anton; Leys, Christophe (IOP Publishing, 2014-06-03)
    Capillary discharge investigated by this work was created in the reactor using positive half-cycle of AC high voltage up to 2 kV. Electric field was created between two electrodes which were separated by the dielectric ...
  • Destruction of Direct Blue 106 Dye in Underwater Discharge 

    Němcová, Lucie; Krčma, František; Nikiforov, Anton; Leys, Christophe (IOP Publishing, 2014-06-03)
    An application of underwater discharge is one possible way how make the destruction of organic dyes. This contribution presents results of Direct Blue 106 destruction in discharge generated in bubbles. The initial conductivity ...
  • Detailed balance in reaction kinetics - consequence of mass conservation? 

    Pekař, Miloslav (Springer-Verlag, 2007-01-01)
    Detailed balance condition for triangular isomerisation mechanism is derived from the more general permanence of atoms, consequently, it should be viewed as a special equilibrium result of mass conservation.