Materials Literature
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Study of EHD flow by using generator corona discharge with electrodes configuration of pin to multi concentric rings (MCR) and pin to single ring (SR) have been curried out. We measured the velocity of EHD flow and determined the comparison of velocity of EHD flow produced by pin to single ring electrodes. The pin nee…
This paper describes direct cladding of magnesium (Mg) and aluminum (Al) alloys using a tandem horizontal twin roll caster that has three pairs of upper and lower rolls. Manufacturing conditions that are appropriate for fabricating Al/Mg and Al/Mg/Al cladded material were investigated. The surface condition of the cla…
Electroactive self-standing flexible composite poly(vinylidene fluoride) ( PVDF) films were prepared by simple solution casting method. In this study we investigated the effect of two different nanofillers, namely GNPs and ZnO NRs and the use of five different hexahydrate salts (HS) on the nucleation of the electroact…
The classical metal-organic Frameworks CuBTC showed remarkable low temperature activity in selective catalytic reduction of NO with NH3 (NH3-SCR). It was found the conversion of NO can reach as high as 100% in the range 210-300 °C on the activated sample. The nature of the active Cu species among CuBTC in NH3-SCR base…
We consider the generalization of the scalar chiral model of graphene, the 8-spinor field being included for the description of spin and quasi-spin excitations. The invariant Lagrangian density quadratic in derivatives is constructed using the principle of energy positivity and that of correspondence with the scalar m…
The present work studies lead dioxide coatings deposited from methanesulfonate electrolytes additionally containing metal ions with high oxidation states. It is shown that lead dioxide electodes micromodified by additives with different physico-chemical properties in reference to traditional PbO 2 -anodes are formedaf…
Abstract Fifteen bisquinoline derivatives with a thioether linker have been prepared, and their Hg2+‐ and Fe3+‐specific fluorescence responses have been investigated. Upon the addition of Hg2+ ions, unsubstituted 2‐quinolylmethyl derivatives 1a–1c exhibit a fluorescence enhancement (off–on) response. On the other hand…
The decomposition of insulation structure due to ageing and faults in transformer will changes its material properties, i.e. material conductivity and its charging and discharging current behavior. The primary aim of this work is to investigate effect of faults in transformer on polarization and depolarization current…
We report on the magnetic properties of the B20 polycrystalline MnGe compound synthesized under high-temperature and high-pressure conditions. From isothermal ac susceptibility experiments, we found the presence of several different magnetic-field–induced phases presenting similarities with those in the isostructural…
A novel Frequency Selective Surface composed of the intersection of the combination between a cone-shaped structure and rectangle is presented. The proposed 3D Frequency Selective Surface contains high frequency PIN Diodes which allow the reconfiguration of the transmission and reflection coefficients of the electroma…
Abstract Self-tempering effects can be observed in steels with relatively high martensite start temperatures. After the formation of the first martensitic laths, carbon is able to diffuse in these laths during cooling, which can be attributed to sufficiently high temperatures. This effect cannot be observed in laths f…
The influence of different surface modifications of carbon supports on the corrosion resistance of 50 wt % Pt/C catalysts on their basis was studied. The corrosion resistance was measured from changes in the electroactive surface area of platinum in the course of potential cycling from 1.0 to 1.5 V versus the reversib…
For the purpose of stable plasma equilibrium control and detailed analysis, it is essential to reconstruct an accurate plasma boundary on the poloidal cross section in tokamak devices. The Cauchy condition surface (CCS) method is a numerical approach for calculating the spatial distribution of the magnetic flux outsid…
Rh5@Ptx/C core-shell nanoparticles were prepared by a two-step hydrogen reduction process and characterized by cyclic voltammetry (CV) combined with X-ray diffraction (XRD) and transmission electron microscopy (TEM). The effects of the thickness of Pt shell on the catalytic performance for ethanol oxidation were inves…
In this study, we has utilized electrochemically reduced graphene oxide and nafion co-modified glassy carbon electrode as a novel and sensitive electrochemical sensor for ascorbic acid in weak acid buffer solution. The modern voltammetric technique was chosen for studying the redox property of Fe(CN)63-electrochemical…
The crystal structures of the new cesium-poor alkali metal suboxometalates Cs10MO5 (M = Al, Ga, Fe) show both metallic and ionic bonding following the formal description (Cs(+))10(MO4(5-))(O(2-))·3e(-). Comparable to the cesium-rich suboxometalates Cs9MO4 (M = Al, Ga, In, Fe, Sc) with ionic subdivision (Cs(+))9(MO4(5-…
Cast Mo2NiB2–Ni metal-matrix composites and protective coatings thereof were fabricated by centrifugal metallothermic SHS process. The quality of SHS surfacing was found to depend on process parameters such as the mass of green mixture per unit surface area of substrate and centrifugal acceleration. The hardness of sy…
Chlorine-enriched tourmaline was found in a hydrothermally altered Miocene diorite porphyry at the Biely Vrch porphyry gold deposit (Central Slovakia) as a relatively rare alteration mineral forming radial aggregates composed of thin prismatic crystals in the central part of quartz veinlets filled by calcite. Zoned to…
Salinization is the main characteristic of soils in arid and semi-arid regions which reduce the agricultural potential ofirrigated lands. Therefore, soil reclamation as well as determination of the leaching requirement for salt control is veryimportant for better plant growth. In this study, the effects of leaching on…
Alzheimer's disease (AD) related tau pathology has previously been classified into six consecutive Braak stages describing the gradual regional deposition of hyperphosphorylated tau protein over the course of the disease. Positron emission tomography (PET) using the ligand 18F-AV1451 (previously T807) now renders poss…