Materials Literature
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This paper presents a new method dedicated to thermal properties (conductivity and diffusivity) measurement of dry bulk materials including powders. The cylindrical three layers experimental device (brass/bulk material/stainless steel) and the principle of the measurement method based on a crenel thermal excitation ar…
Here, we report on the structural and the optical properties of polycrystalline NiO thin films prepared by using the thermal oxidation of metallic Ni. After the deposition of the Ni films, they were placed in a thermal oxidation furnace at different temperatures (400, 500, 600, 700, and 1000 °C), resulting in mean cry…
Magnesium oxide (MgO) nanopowders were synthesised by a sol–gel method with different amounts of ammonium hydroxide (NH 3 ·H 2 O) and characterised by a combination of thermo gravimetric analysis, X‐ray diffraction and transmission electron microscopy. It was found that the structure and morphology of MgO nanopowders…
The electrical characteristics of hybrid super capacitor were evaluated by synthesizing LTO (Li 4 Ti 5 O 12 ) using TiO 2 having a hydrogen titanate nanowire form. Preparation of the hydrogen titanate nanowire was implemented by using TiO 2 having size of 60 nm and NaOH, and performing synthesis at 70 °C for 6 h with…
The influence of heat treatment on the structural uniformity, degree of residual-austenite decomposition, working-layer hardness, and residual-stress distribution in two-layer high-chromium rollers is studied in production conditions. A new method is proposed for the cyclic heat treatment of two-layer rollers.
Carbon nanowalls (CNWs) consist of walls of thin graphite with thicknesses of a few tens of nanometers that stand vertically on a substrate. For modification of their structure after growth, we developed a method utilizing etching with oxygen atoms generated by an inductively coupled oxygen plasma. We found that oxyge…
Objective(s): To evaluate the influences of aqueous extracts of plant parts (stem, leaves, and root) of Portulaca oleracea L. on bioformation of silver nanoparticles (AgNPs). Materials and Methods: Synthesis of silver nanoparticles by different plant part extracts of Portulaca oleracea L. was carried out and formation…
The Special Power Excursion Reactor Test III (SPERT III) was a series of reactivity insertion experiments conducted in the 1950s. This paper describes the validation of the U.S. NRC coupled code system TRITON/PARCS/TRACE to simulate reactivity insertion accidents (RIA) using several of the SPERT III tests. The NRC cou…
We consider possibility of the self-organization of crystals during the plastic deformation in the form of band-structure elements — MBs and SBs. They contribute to prolongation of the deformation under the dislocation slide braking whereby the hydrodynamic flow within the MBs and SBs. The distinctions between the pro…
Angiostrongylus cantonensis is an important causative agent of eosinophilic meningitis and eosinophilic meningoencephalitis in humans. MicroRNAs (miRNAs) are small non-coding RNAs that participate in a wide range of biological processes. This study employed a deep-sequencing approach to study miRNAs from young adults…
Abstract The synthesis, optical properties, and cellular uptake of a family of 4,4‐difluoro‐4‐bora‐3a,4a‐diaza‐s‐indacene (BODIPY) derivatives that incorporate a naphthyridine substituent at the 8‐position of the BODIPY core and either alkyl, bromo, or dimethylamino aryl groups at the 2‐ and 6‐positions are described.…
Zirconia-mullite-alumina composites were prepared by reaction sintering of micro fine calcined alumina and zircon flour in different ratios. TiO2 was added in different proportions as an additive and the starting materials were iso-statically pressed. The Al2O3 / ZrO2 ratios and the proportions of the TiO2 additive co…
The optical properties of tellurite based glass systems are composition dependent. For this purpose glass samples of the composition 70TeO2-(30–x)BaO-xZnCl2 with x = 5, 10, 15, 20 and 25 have been synthesized by rapid melt quenching technique. Glassy nature has been confirmed by X-ray diffraction pattern. The physical…
Abstract The highly ordered silver-coated colloidal crystals arrays and macroporous silver films were derived through an electrostatics-induced adsorption effect using polystyrene (PS) as templates. Carboxyl-modified PS microspheres were prepared by emulsifier-free emulsion polymerization using methacrylic acid (MAA)…
Corrosion resistance of polyurea polyaspartic ester (PPE) coating in 3.5% NaCl solution was studied by electrochemical impedance spectroscopy (EIS). A series of impedance spectra of the PPE coating during immersion was measured, and its corrosion resistance was evaluated according to the spectra. The experimental resu…
The flammability of polypropylene and its intumescent flame retardant composites consisting of ammonium polyphosphate (APP), pentaerythritol (PER) and SiO 2 were studied and the synergistic effect of SiO 2 , as well as the synergistic mechanism was discussed in detail. For the composites, the content of SiO 2 varied f…
It has been more than one century since Paul Ehrlich spoke about the idea of targeting specific molecules in the cell when he coined the 'Magic Bullet' principle. In most occasions, we seek new pharmacodynamic models for therapy, but nanoparticles provide a chance to modify the already existing pharmacokinetics of dru…
This paper considers the measurement and propagation of partial discharge pulses on distribution class power cable circuits, with the idea of attempting to determine discharge location sites on cables based on the parameters of individual pulses. Single-ended discharge location techniques based on partial discharge pu…
The aerodynamic properties of 15 knitted fabrics of varying cover factor, yarn, and fiber compositions were investigated for their aerodynamic properties on circular cylinders in a wind tunnel. Measurements of the drag force, pressure distribution, and the Particle Image Velocimetry (PIV) technique were used in order…
Porous silicon (PS) has been fabricated by Photo-electrochemical etching. Porous silicon was anodized on n-type Si in light using a current density of 20 mA/cm 2 for 10 min. The porous structure formation was confirmed using XRD and AFM studies. The root mean square (RMS) roughness of the Porous silicon layer is found…