Materials Literature
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The efficiency of broadband filtering of a polychromatic X-ray spectrum by a polycapillary structure in the region of photon energies E > 10 keV was demonstrated. A polycapillary 40.5-mm-long rod made of borosilicate glass and containing 10 6 parallel hexagonal capillaries was used as a filter. Filtering was performed…
Amorphous silicon (a-Si:H) thin films with deposition temperatures ranging from 100°C to 400°C from two different deposition chambers have been analyzed and characterized using various techniques including the Atomic Force Microscope (AFM). These amorphous silicon films were deposited in two separate Plasma Enhanced C…
The current state of neutron research at the IR-8 reactor is considered and it is shown that the research is focused on two main avenues: comprehensive radiation diagnostics for the sake of those knowledge domains which have not used it before and research of the structure of material under extreme conditions (high pr…
Computer simulations allow researchers to study the dynamics and interactions of biological molecules in ways that cannot be currently achieved in experiments. In this work, I have used computer simulations to study the following systems: (1) carbohydrate-carbohydrate and carbohydrate-amino acid interactions using all…
A characterization and modeling protocol is presented for the measurement and calculus of curing kinetics of epoxy molding compounds to predict the degree of curing under arbitrary thermal conditions. The is conversional approach allows the use of nonisothermal differential scanning calorimetry (DSC) data and obviates…
The efficiency values of the control rods in a critical assembly are measured using the RKI-1 reactimeter. The RKI-1 software allows one to process the initial experimental data using the correction method and the integral method.
Two-dimensional hexagonal boron nitride has attracted the eyes of many scientists due to its very high thermal and electrical stability. This paper reports the effects of edge termination by non-metallic (NM) atoms (H, P, F, and O) on the electronic properties of zigzag boron nitride nanoribbon (ZBNNR). First principl…
We present a comparative study between CIGS tandem and CIGS single-junction solar cells. The solar cell parameters like open circuit voltage, short circuit current density, fill factor, maximum power and external quantum efficiency are compared. Calculations use the standard software tool SILVACO ATLAS. We first optim…
In the paper, algorithms of the surface harmonics method (SHM) for deriving finite difference (algebraic) equations to describe the neutron field in a heterogeneous reactor are developed. The neutron transport equation is used as the initial equation. The step of deriving the diffusion equation in the differential for…
To determine the effect of a metal substrate on the electronic state of quasi-free-standing graphene, a simple model taking into account the presence of the double electric layer on the metal surface is proposed. The arising electrostatic field shifts the Dirac point of graphene, which leads to its doping. An analytic…
Perovskite solar cell (PSC) with inorganic hole-transporting material is cost effective and stable. This paper presents a numerical analysis of CH3NH3PbI3based PSC using SCAPS-1D software. Actual absorption spectra of different layers of the PSC structure are considered in the analysis. The performance of the referenc…
The Argus research solution reactor and the main principles of experimental validation of its safety are described. The described validation is computationally confirmed in accordance with the requirements of the normative documents using the DAREUS software package designed for modeling dynamic processes in the cores…
The process of changing the average deflection of the copper surface over cobalt subsurface clusters and the fraction of the surface occupied by the ensemble of clusters. Their time dependences were calculated, in good agreement with the experiment.
The alkylation of 2-(2,6-difluorophenyl)-5-(2-hydroxyphenyl)-1,3,4-oxadiazole with allyl bromide gave 2-(2-allyloxyphenyl)-5-(2,6-difluorophenyl)-1,3,4-oxadiazole, and sulfonylation of the same substrate with benzene- and p -toluenesulfonyl chlorides afforded the corresponding 2-(2-arenesulfonyloxyphenyl)-5-(2,6-diflu…
Arc reactor is the design for compact fusion reactor. In this paper mechanism of an Arc Reactor is discussed which is a multi-isotope radio-decay cell that can be created using Low Energy Nuclear Reactor (LENR) technology which is a low-radiation fusion reactor. Here, Palladium isotope is used as a core and it generat…
Abstract This work is a brief review of investigations of the magnetic properties of binary and pseudobinary intermetallics containing non-Kramers praseodymium ions. Special attention is paid to the PrNi5, PrCu5, PrNi2, and PrAl2 compounds and substitutional solid solutions based on them.
In this work the effect of prevailing electrical and thermal conditions on the luminous of efficacy of radiation and wall-plug efficiency of phosphor-converted white LEDs is discussed. For this study, LED manufactured by a reputed lighting company is used. Previous studies have modeled the spectral power distribution…
Abstract Possible phase transitions from paramagnetic to the magnetic phases in the RMn2O5 (R = Bi, Pr, La) compounds have been studied in the framework of a phenomenological approach based on a symmetry analysis. The basis functions of the irreducible representations of the space group for these compounds are determi…
Abstract The microstructure and the phase composition of an experimental Ni3Al-based intermetallic alloy containing (wt %) 7.8 Al, 14.5 Ta, 0.9 Mo, 0.5 W, 0.5 Re, 0.15 C, and Ni for balance, which was prepared by slow (6 mm/h) high-gradient (15°C/mm) directional solidification and selective laser melting, are studied,…
The aim of the work was to study the effect of methylsilica additions and deuterochloroform hydrophobic medium on the water state in a phytocomposite system “Lymphosilica”. The water state in a Lymphosilica composite material, created by mechanochemical activation of a mixture of milled medicinal plants and wetting-dr…