Nové technologie - výzkumné centrum / New Technologies - Research Centre


78 items

Recent Submissions

Matas, Richard , Novák, Martin , Kňourek, Jindřich
Numerical Simulations of Flow in Electrostatic Precipitators

Electrostatic precipitators are widely used in power generation and industry to separate solid particles from flue gases. They need relatively homogeneous distribution of the flue gas inside otherwise the required efficiency cannot be ensured. The paper shows how to approach some of pos...

Prokop, Martin , Bystroň, Tomáš , Bělský, Petr , Tuček, Ondřej , Kodým, Roman , Paidar, Martin , Bouzek, Karel
Degradation kinetics of Pt during high-temperature PEM fuel cell operation Part III: Voltage-dependent Pt degradation rate in single-cell experiments

Degradation of the Pt catalyst is one of the most serious problems related to the high-temperature fuel cell with a proton-exchange membrane (HT PEM FC). Despite many publications on this topic, no clear relationship between Pt nanoparticle growth and HT PEM FC operating conditions...

Mohanapriya, M. K. , Deshmukh, Kalim Abdul Rashid , Kadlec, Jaroslav , Kumar Sadasivuni, Kishor , Faisal, Muhammad , Nambi Raj, N. A. , Pasha, Skkhadeer K. Khadheer
Dynamic mechanical analysis and broadband electromagnetic interference shielding characteristics of poly (vinyl alcohol)-poly (4-styrenesulfonic acid)-titanium dioxide nanoparticles based tertiary nanocomposites

Novel tertiary nanocomposite films comprising of poly (vinyl alcohol) (PVA), poly (4-styrenesulfonic acid) (PSSA) and titanium dioxide (TiO2) nanoparticles (NPS) were prepared using simple solvent casting method. The structural, thermal, morphological, thermo-mechanical and electromagnetic interference (EMI) shieldi...

Vála, Lukáš , Vavruňková, Veronika , Jandová, Věra , Pola, Michal , Křenek, Tomáš
Formation of iron sulfide photocatalytic colloidal dispersion via pulsed laser ablation in liquids

Pulsed laser irradiation of iron sulfide in water and ethanol allows laser ablation and generation of FeS nano/micro particles. Measurement of the size distribution reveals 100, 1000 and 5000 nm sized particles in water and 180 nm sized particles in ethanol. The values of ...

Vostřák, Marek , Hajšman, Jan , Hruška, Matěj , Keslová, Anna
Comparison of mechanical properties of laser cladded WC and (TIW)C1-X IN NI based alloy coatings

For wear demanding applications, the metal matrix composites (MMC) are often used due to their high wear resistance, and the tungsten carbide is often used as hard reinforcing particles. Nevertheless, there are still some limits of WC, mainly its deterioration due to heat load ...