Materials Literature
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Poly(styrene-co-divinyl benzene) bulk material is widely used in vacuum insulation system due to its excellent flashover hold-off capability. In this paper, the relationship between flashover voltages and cross-linking density was investigated. Poly(styrene-co-divinyl benzene) materials were synthesized by styrene and…
The results of an evaluation of the relative and dynamic viscosities of phenol–formaldehyde resin modified with furfural–acetone monomer FA monomer are presented. That there is increasing viscosity of the modified adhesive composition is established due to the formation of polycomplexes, these being new supramolecular…
Experimental study of the deformation amplitude of the dielectric polymer gel films directly right in the display device of optical information was conducted. The deformation amplitude of the gel film was measured during its change by controlled constant voltage on the electrodes. On the basis of polymer gel deformati…
Biomimetic dual-membrane-functionalized nanoparticles, incorporating the natural properties of two different cell types, are fabricated by a facile process employing fused cell membranes, as described by Liangfang Zhang and co-workers in article number 1606209. The resulting hybrid cell-membrane-coated nanoparticles r…
A simple and green method was presented to embed TiO2 on regenerated cellulose membranes via cellulose dissolution-regeneration process. The physical, chemical and mechanical properties of the composite membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier- Transform Infr…
We have prepared composite materials with a mixture of carbonyl iron (CI) and manganese-zinc ferrite (MnZn) as filler and polyvinylchloride (PVC) as polymer matrix, and then electromagnetic wave absorption properties of CI/MnZn/PVC composites have been studied in the frequency range from 10 MHz to 6.5 GHz. Increasing…
AC induction machines are exposed to fast-front pulses when fed from frequency converters. This type of excitation produces additional dielectric stress in the machine's insulation system which can result in premature deterioration or even failure. In this work, a non-uniform transmission line modeling approach is use…
The study is concerned with the physical and chemical processes and the mechanisms of the effect of plasma preparation of a surface on the systematic features of condensation and surface phase transformations during the formation of Si–C mask domains on p -Si(100) crystals by the deposition of submonolayer C coatings…
Any person who intends to travel outdoor must be prepared to deal with all sorts of weather, starting from the dry hot condition to the chilled coolness. The extremities of both the conditions can lead to serious health problems. Changes in single degree can affect body's biochemistry leading to various abnormalities.…
A series of novel 2,6-dibrominated BODIPY dyes with styryl groups at the 3,5-positions has been prepared, and their photophysical properties have been analyzed to assess their potential utility for use as photosensitizers in photodynamic therapy and in bioimaging.
The anisotropic magnetoelectric properties of an ytterbium aluminum borate YbAl (BO single crystal having noncentrosymmetric crystal structure (space group R32) are studied, including the orientational, field, and temperature dependences of the polarization in magnetic fields up to 5 T in the temperature range of 2–30…
It is shown that, in contradiction with the fundamental results obtained for free graphene, graphene films grown on the Rh(111) surface to thicknesses from one to ~(12–15) single layers do not absorb visible electromagnetic radiation emitted from the surface and influence neither the brightness nor true temperature of…
The development of cyclodextrin nanoassemblies as useful carriers for photosensitizer drugs (PS) delivery in biological environment is a topic of increasing interest. In this paper, we present a spectroscopic investigation on a nanosystem based on an amphiphilic cationic β-cyclodextrin derivative (CD-N) and an anionic…
This paper completes the review of recent (last 15 years) publications on experimental and theoretical methods and approaches for studying damage accumulation and fracture in crystalline solids. It summarizes the works that describe damage and fracture using an approach based on crystal plasticity. These works study t…
We theoretically investigate the confined states of the bilayer triangular phosphorene dots and antidots by means of the tight-binding approach. The dependence of the energy levels on the size, the type of the boundary edges, and the orientation of the dots and antidots, and the influences of the electric and magnetic…
Powder samples of the ABO3 perovskite manganites Pr0.6Sr0.4CrxMn1-xO3 (0.00≤x≤0.30) were synthesized using the sol-gel method. X-ray diffraction analyses showed that all the samples had a single-phase orthorhombic structure. By analyzing magnetic parameters on the basis of the O2p itinerant electron model, we found th…
Due to the lack of two-dimensional silicon-based semiconductors and the fact that most of the components and devices are generated on single-crystal silicon or silicon-based substrates in modern industry, designing two-dimensional silicon-based semiconductors is highly desired. With the combination of a swarm structur…
Developing new restorative materials should avoid damage to tissue structures. This study evaluated the biocompatibility of a commercial dental glass ionomer cement (GIC) mechanically reinforced with cellulose microfibers (GIC+CM) or cellulose nanocrystals (GIC+CN) by implantation of three test specimens in subcutaneo…
All four parameters of the Mie–Lennard-Jones pair interatomic potential have been determined, and the state equation (P) and baric dependences of the lattice properties of an fcc iron are calculated using a previously proposed method. The dependences have been studied for the following properties: Debye temperature; t…
TiO2/C-dot composites were synthesised by sol-gel method and investigated as catalysts for photocatalytic degradation of persistent organic pollutants (perchloroethylene, PCE). The composites photoluminescence properties was shown by visual analysis and the synthesis product was characterized by XRD, FTIR, fluorescenc…