Now showing items 41-60 of 721

  • Serum and Tissue Zinc in Epithelial Malignancies: A Meta-Analysis 

    Gumulec, Jaromír; Masařík, Michal; Adam, Vojtěch; Eckschlager, Tomáš; Provazník, Ivo; Kizek, René (PLOS, 2014-06-19)
    Background and Objectives: Current studies give us inconsistent results regarding the association of neoplasms and zinc(II) serum and tissues concentrations. The results of to-date studies using meta-analysis are summarized ...
  • Initiation of Fatigue Cracks in Ultrafine-grained Materials in High-cycle Fatigue Region 

    Kunz, Ludvík; Fintová, Stanislava (Elsevier, 2014-06-25)
    Initiation of fatigue cracks in materials with conventional grain (CG) size was investigated very thoroughly in the past. There is an extensive knowledge on the localization of cyclic plasticity and early crack development; ...
  • 3D Morphology of Fracture Surfaces Created by Mixed-mode II+III Fatigue Loading in Metallic Materials 

    Vojtek, Tomáš; Pokluda, Jaroslav; Hohenwarter, Anton; Slámečka, Karel; Pippan, Reinhard (Elsevier, 2014-06-25)
    This paper presents results of 3Dfractographical analysis of shear-mode fatigue cracks in ARMCO iron, alpha-titanium, nickel and the X5CrNi18-10 steel. Observation of crack paths on a microscopic level enables us to reveal ...
  • Personal Navigation Algorithms Based on Wireless Networks and Inertial Sensors 

    Kaňa, Zdeněk; Bradáč, Zdeněk; Fiedler, Petr (FEI STU Bratislava, 2014-06-30)
    The work aims at a development of positioning algorithm suitable for low-cost indoor or urban pedestrian navigation application. The sensor fusion was applied to increase the localization accuracy. Due to required low ...
  • HIV Biosensors – The Potential of the Electrochemical Way 

    Merlos Rodrigo, Miguel Ángel; Heger, Zbyněk; Cernei, Natalia Vladimirovna; Jimenez Jimenez, Ana Maria; Zítka, Ondřej; Adam, Vojtěch; Kizek, René (ESG, 2014-07-01)
    Because of high costs and time consuming common HIV tests, new ways in diagnosis, offering rapid, cheap, and accuracy possibility are looking for. One of the most promising fields is electrochemistry, providing very good ...
  • Electrochemical Sensors and Biosensors for Influenza Detection – Literature Survey 2012-2013 

    Krejčová, Ludmila; Hynek, David; Michálek, Petr; Milosavljević, Vedran; Kopel, Pavel; Zítka, Ondřej; Novotná, Marie; Kynický, Jindřich; Adam, Vojtěch; Hubálek, Jaromír; Kizek, René (ESG, 2014-07-01)
    This review summarized published information in the area of electrochemical detection of influenza virus in 2012 – 2013. The attention was mainly paid to summarize the news in the field of sensors and biosensors for influenza ...
  • In Vitro Interactions between 17 beta-Estradiol and DNA Result in Formation of the Hormone-DNA Complexes 

    Heger, Zbyněk; Guráň, Roman; Zítka, Ondřej; Beklová, Miroslava; Adam, Vojtěch; Kizek, René (MDPI, 2014-08-01)
    Beyond the role of 17 beta-estradiol (E-2) in reproduction and during the menstrual cycle, it has been shown to modulate numerous physiological processes such as cell proliferation, apoptosis, inflammation and ion transport ...
  • Stabilizing Single Ni Adatoms on a Two-Dimensional Porous Titania Overlayer at the SrTiO3(110) Surface 

    Wang, Zhiming; Hao, Xianfeng; Gerhold, Stefan; Mareš, Petr; Wagner, Margareta; Bliem, Roland; Schulte, Karina; Schmid, Michael; Franchini, Cesare; Diebold, Ulrike (ACS Publications, 2014-08-02)
    Nickel vapor-deposited on the SrTiO3(110) surface was studied using scanning tunneling microscopy, photoemission spectroscopy (PES), and density functional theory calculations. This surface forms a (4 x 1) reconstruction, ...
  • Near threshold fatigue crack growth in ultrafinegrained copper 

    Arzaghi, Mandana; Fintová, Stanislava; Sarrazin-Baudoux, Christine; Kunz, Ludvík; Petit, Jean (IOP Publishing, 2014-08-08)
    The near threshold fatigue crack growth in ultrafine-grained (UFG) copper at room temperature was studied in comparison to conventional coarse-grained (CG) copper. The fatigue crack growth rates da/dN in UFG copper were ...
  • Initiation of fatigue cracks in AZ91 Mg alloy processed by ECAP 

    Fintová, Stanislava; Kunz, Ludvík (IOP Publishing, 2014-08-08)
    Mechanism of fatigue crack initiation was investigated in ultrafine-grained (UFG) magnesium alloy AZ91 processed by equal channel angular pressing (ECAP). Fatigue behaviour of UFG material was compared to the behaviour of ...
  • Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate 

    Filipović, Suzana; Obradović, Nina; Pavlović, Vladimir B.; Kosanović, Darko; Mitrić, Miodrag; Mitrović, Nebojsa; Pouchlý, Václav; Kachlík, Martin; Maca, Karel (International Institute for the Science of Sintering, Beograd, 2014-09-01)
    In this article, the advantages of combined sintering in comparison with the conventional one, of mechanically activated magnesium titanate ceramic were investigated. The stoichiometric mixtures of MgO and TiO2 were ...
  • Algal Biomass Analysis by Laser-Based Analytical Techniques - A Review 

    Pořízka, Pavel; Prochazková, Petra; Prochazka, David; Sládková, Lucia; Novotný, Jan; Petrilak, Michal; Brada, Michal; Samek, Ota; Pilát, Zdeněk; Zemánek, Pavel; Adam, Vojtěch; Kizek, René; Novotný, Karel; Kaiser, Jozef (MDPI, 2014-09-23)
    Algal biomass that is represented mainly by commercially grown algal strains has recently found many potential applications in various fields of interest. Its utilization has been found advantageous in the fields of ...
  • Second-order Simple Multiphase Oscillator Using Z-Copy Controlled-Gain Voltage Differencing Current Conveyor 

    Šotner, Roman; Jeřábek, Jan; Petržela, Jiří; Herencsár, Norbert; Prokop, Roman; Vrba, Kamil (Kaunas University of Technology, 2014-11-19)
    Interesting type of the second-order electronically controllable multiphase oscillator is introduced in this paper. Modified voltage differencing current conveyor, so-called z-copy controlled gain voltage differencing ...
  • Modulation of Induced Cytotoxicity of Doxorubicin by Using Apoferritin and Liposomal Cages 

    Gumulec, Jaromír; Fojtů, Michaela; Raudenská, Martina; Sztalmachová, Markéta; Skotáková, Anna; Vlachová, Jana; Skaličková, Sylvie; Nejdl, Lukáš; Kopel, Pavel; Knopfová, Lucia; Adam, Vojtěch; Kizek, René; Stiborová, Marie; Babula, Petr; Masařík, Michal (MDPI, 2014-12-01)
    Doxorubicin is an effective chemotherapeutic drug, however, its toxicity is a significant limitation in therapy. Encapsulation of doxorubicin inside liposomes or ferritin cages decreases cardiotoxicity while maintaining ...
  • Fast response hydrogen microsensor based on semiconductor niobium-oxide nanostructures via smart anodizing of Al/Nb metal layers 

    Vazquez, Rosa Maria; Mozalev, Alexander; Llobet, Eduard (Elsevier, 2014-12-31)
    Nanostructured niobium oxide semiconductor is gaining increasing attention as electro-optic and gas sensing material. However, the preparation of stable niobium oxide nanofilm with reproducible morphology and behaviour ...
  • Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate 

    Styskalik, Aleš; Škoda, David; Moravec, Zdeněk; Roupcová, Pavla; Barnes, Craig E.; Pinkas, Jiří (Royal Society of Chemistry, 2015-01-01)
    The first synthesis of mesoporous nanocrystalline silicon orthophosphate Si5P6O25 is presented. The synthetic procedure is based on the non-hydrolytic sol-gel reaction in the presence of Pluronic P123 template and subsequent ...
  • Simultaneous Automatic Electrochemical Detection of Zinc, Cadmium, Copper and Lead Ions in Environmental Samples Using a Thin-Film Mercury Electrode and an Artificial Neural Network 

    Kudr, Jiří; Nguyen, Hoai Viet; Gumulec, Jaromír; Nejdl, Lukáš; Blažková, Iva; Ruttkay-Nedecký, Branislav; Hynek, David; Kynický, Jindřich; Adam, Vojtěch; Kizek, René (MDPI, 2015-01-01)
    In this study a device for automatic electrochemical analysis was designed. A three electrodes detection system was attached to a positioning device, which enabled us to move the electrode system from one well to another ...
  • Design and Fabrication of Fully Implantable MEMS Cochlea 

    Svatoš, Vojtěch; Pekárek, Jan; Dušek, Daniel; Žák, Jaromír; Hadaš, Zdeněk; Prášek, Jan (Elsevier, 2015-01-02)
    The micro-electro-mechanical array for application as fully implantable cochlea is presented in this paper. The complete system including a short overview of energy harvesting and the system configuration is proposed. This ...
  • Common Industrial Protocol in machine safety 

    Štohl, Radek; Stibor, Karel (Elsevier, 2015-01-05)
    The authors discuss the Common Industrial Protocol (CIP), an instrument used on many types of networks, including EtherNet and DeviceNet. The CIP is classified into a large number of variants, for example CIP Safety, CIP ...
  • Optimal Scheduling of Domestic Appliances via MILP 

    Kaczmarczyk, Václav; Fiedler, Petr; Bradáč, Zdeněk (MDPI AG, 2015-01-08)
    This paper analyzes a consumption scheduling mechanism for domestic appliances within a home area network. The aim of the proposed scheduling is to minimize the total energy price paid by the consumer and to reduce power ...