Now showing items 21-30 of 30

  • Characterization of GaAs Solar Cells under Supercontinuum Long-Time Illumination 

    Papež, Nikola; Dallaev, Rashid; Kaspar, Pavel; Sobola, Dinara; Škarvada, Pavel; Ţălu, Ştefan; Ramazanov, Shikhgasan; Nebojsa, Alois (MDPI, 2021-01-19)
    This work is dedicated to the description of the degradation of GaAs solar cells under continuous laser irradiation. Constant and strong exposure of the solar cell was performed over two months. Time-dependent electrical ...
  • Water-born 3Dnanofiber mats usingcost-effectivecentrifugal spinning: comparison with electrospinnig process: A complex study 

    Říhová, Martina; Ince, Ahmet Erdem; Čičmancová, Veronika; Hromádko, Luděk; Částková, Klára; Pavliňák, David; Vojtová, Lucy; Macák, Jan (WILEY, 2021-02-05)
    A comparison of the electrostatic and centrifugal spinning of poly(vinyl alcohol) and poly(vinyl pyrrolidone) is shown in terms of the resulting fiber morphology and the process conditions. Specific parameters of centrifugal ...
  • Overview of the Current State of Gallium Arsenide-Based Solar Cells 

    Papež, Nikola; Dallaev, Rashid; Ţălu, Ştefan; Kaštyl, Jaroslav (MDPI, 2021-06-04)
    As widely-available silicon solar cells, the development of GaAs-based solar cells has been ongoing for many years. Although cells on the gallium arsenide basis today achieve the highest efficiency of all, they are not ...
  • Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2 

    Krtička, Milan; Plánka, Ladislav; Vojtová, Lucy; Nekuda, Vladimír; Šťastný, Přemysl; Sedláček, Radek; Břínek, Adam; Kavková, Michaela; Göpfert, Eduard; Hedvičáková, Věra; Rampichová, Michaela; Křen, Leoš; Lišková, Květoslava; Ira, Daniel; Dorazilová, Jana; Suchý, Tomáš; Zikmund, Tomáš; Kaiser, Jozef; Starý, David; Faldyna, Martin; Trunec, Martin (MDPI, 2021-06-25)
    An experimental animal study was designed to investigate the intervertebral fusion efficiency and safety of a bioresorbable ceramic/biopolymer hybrid implant enriched with FGF2-STAB(R) in comparison with a tricortical bone ...
  • Thin high-strength zirconia tapes with extreme flexibility 

    Šťastný, Přemysl; Chlup, Zdeněk; Roupcová, Pavla; Trunec, Martin (Taylor & Francis, 2021-07-03)
    The yttria stabilized zirconia ceramics (Y-TZP) are known for their high fracture toughness and high strength. Due to their excellent mechanical properties, the thin zirconia tapes can possess extraordinary behavior - ...
  • PVDF Fibers Modification by Nitrate Salts Doping 

    Sobola, Dinara; Kaspar, Pavel; Částková, Klára; Dallaev, Rashid; Papež, Nikola; Sedlák, Petr; Trčka, Tomáš; Orudzhev, Farid; Kaštyl, Jaroslav; Weiser, Adam; Knápek, Alexandr; Holcman, Vladimír (MDPI, 2021-07-24)
    The method of inclusion of various additives into a polymer depends highly on the material in question and the desired effect. In the case of this paper, nitride salts were introduced into polyvinylidene fluoride fibers ...
  • Surface Analyses of PVDF/NMP/[EMIM][TFSI] Solid Polymer Electrolyte 

    Sedlák, Petr; Sobola, Dinara; Gajdoš, Adam; Dallaev, Rashid; Nebojsa, Alois; Kuberský, Petr (MDPI, 2021-08-11)
    Thermal treatment conditions of solid polymer polymer electrolyte (SPE) were studied with respect to their impact on the surface morphology, phase composition and chemical composition of an imidazolium ionic-liquid-based ...
  • Triboelectric Response of Electrospun Stratified PVDF and PA Structures 

    Tofel, Pavel; Částková, Klára; Říha, David; Sobola, Dinara; Papež, Nikola; Kaštyl, Jaroslav; Talu, Stefan; Hadaš, Zdeněk (MDPI, 2022-01-22)
    Utilizing the triboelectric effect of the fibrous structure, a very low cost and straightforward sensor or an energy harvester can be obtained. A device of this kind can be flexible and, moreover, it can exhibit a better ...
  • Comprehensive characterization of PVDF nanofibers at macro- and nanolevel 

    Pisarenko, Tatiana; Papež, Nikola; Sobola, Dinara; Ţălu, Ştefan; Částková, Klára; Škarvada, Pavel; Macků, Robert; Ščasnovič, Erik; Kaštyl, Jaroslav (MDPI, 2022-02-01)
    This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process ...
  • Macroporous bioceramic scaffolds based on tricalcium phosphates reinforced with silica: microstructural, mechanical, and biological evaluation 

    Novotná, Lenka; Chlup, Zdeněk; Jaroš, Josef; Částková, Klára; Drdlík, Daniel; Pospíšil, Jakub; Hampl, Aleš; Koutná, Irena; Cihlář, Jaroslav (Informa, 2022-03-27)
    The positive effect of silica on microstructural, mechanical and biological properties of calcium phosphate scaffolds was investigated in this study. Scaffolds containing 3D interconnected spherical macropores with diameters ...