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https://jinr.webex.com/jinr/j.php?MTID=m90f9278cba9f80b025fd3f9fc584ce38
The critical issue of modern nuclear energetics is the disposal of radioactive waste resulting from the nuclear fuel cycle. One of the promising ways to reduce their radiotoxicity is the neutralization of minor actinides using special diluents (matrices) of nuclear fuel, inert to the formation of radioactive isotopes and characterized by increased radiation resistance, in particular, to the...
Electrode materials microstructure modification is one of the promising methods for improving Li-ion battery performance (e.g. power, cycle rates). In cathode materials (materials for positive electrode) based on lithium-nickel-manganese-cobalt oxide (NMC) maximum charge/discharge currents are limited both because of low Li—ion diffusion values inside the grains of the material and its low...
We have studied the effect of cholesterol and/or melatonin on the static and dynamical properties of DPPC and POPC-based phospholipid bilayers utilizing neutron scattering techniques and Raman spectroscopy. We report that cholesterol induced an increase in bilayer thickness, while melatonin induced a decrease in bilayer thickness in the three-component systems of lipid/cholesterol/melatonin....
Thermal conductivity (TC) degradation of aluminum oxide induced by irradiation with swift heavy ions (SHI) at room temperature is studied and quantified with direct method of non-equilibrium molecular dynamics. The calculations were performed for an ideal crystal lattice, amorphous and irradiated states of aluminum oxide. Irradiated samples were described by the model of the track formation...
In the last time, the problem of water purification from dangerous substances is becoming more and more acute. A large number of studies are devoted to the extraction of heavy metals from aqueous solutions [1,2,3]. In addition, the extraction and concentration of valuable heavy metals from solutions is also of interest. The creation of solid adsorbents with high capacity and stability in the...
Understanding the adsorption of pesticides and toxic gases on graphene has
high importance for their degradation and removal. In the present study, the
adsorption of different models of organophosphate pesticides (OPH3, OPF3,
SPH3 and SPF3) on perfect and defected graphene was examined by using the DFT method. Inspected systems were pristine, single-vacancy (SV), Stone-Wales (SW) and epoxy...
Core-shell nanoparticles are widely spread in advanced technologies. Small-angle neutron scattering (SANS) is actively used in their structural diagnostics [1,2]. Providing H/D isotopic substitution in the liquid carrier of magnetic fluids lets adjusting the neutron scattering length density (SLD) of the solvents in a frame of the contrast variation technique [3].
There are specific points at...
As sodium is abundant and inexpensive compared to lithium, Na-ion battery (NIB) has recently regained interest within the scientific community as a promising alternative to Li-ion battery for large-scale energy storage applications [1]. One of the challenges for commercialization of NIB is to develop cathode materials with high capacity and good stability. Among various NIB cathode materials...
In recent decades, it has become clear that the band structure of solids can be classified using the concept of topological invariants derived from geometry. This new classification of insulators divides them in conventional and topological insulators. Two dimensional topological insulators, or quantum spin-Hall insulators (QSH), are materials that do not conduct electrical current inside...
Ranitidine hydrochloride (C13H22N4O3S*HCl) is an inhibitor of gastric acid secretion and used to block acid production in the stomach, for indigestion, acid reflux, heartburn, peptic ulcer and treatment of ZollingereEllison syndrome [1]. Polymorphs are different crystalline forms of a drug that may have different physico-chemical properties and biological activities. Since pharmaceuticals, at...
Half-Heisler magnetic intermetallic compounds of transition metals exhibit interesting physical properties such as magnetoresistance, ferromagnetic and antiferromagnetic magnetic states, and superconductivity. It is observed the shape memory effect and superelasticity with opportunity to control there phenomena by means magnetic field. It makes these compounds promising materials to apply for...
Nowadays studying of proximity effects at the interface between two media are in focus of view. In particular it relates to the interface between superconductor and ferromagnet. Due to the mutual influence of ferromagnetism and superconductivity, because of the finite values of the coherence lengths, a significant modification of the magnetic and superconducting properties occurs. It appears,...
In this paper, we consider the determination of the second critical magnetic field of superconducting materials based on the model of splitting of energy levels in a magnetic field for a system with two states. The obtained dependence of the second critical field on the energy gap of superconductors is in good agreement with experimental data for superconducting alloys, metals, amorphous...
The aim of the work is to investigate the dependence of resistance on temperature for composite materials with a dielectric matrix and conductive filler. The problem of using these materials is the not fully investigated nature of the conductivity from temperature.
The paper calculates the dependence of the resistance for a composite material with a dielectric matrix and a conductive filler...
The effects of gamma irradiation on the structural, morphological and thermal properties of high-density polyethylene (HDPE) based nanocomposites (HDPE/%SiO2) are discussed in the work. The main objective and significance of the proposed research is to develop a multifunctional hybrid structure that can provide efficient radiation shielding and at the same time can provide excellent structural...
