20 articles in this issue
Iryna V. Sheina, Olexander B. Kiselov, Evgen A. Barannik
The influence of dynamic change in the steering angle of incident and scattered wave beams on the spectra of the ultrasonic Doppler response is studied on the basis of the previously developed continuum model of ultrasound waves scattering in biological o... see more
Nikolay G. Kokodii, Stanislav V. Pogorelov
The existence of the effect of heat metastable localization in the medium in the blow-up heating regime was experimentally proved. This is the regime in which the heating energy for a finite period of time tends to infinity. Previous theoretical studies h... see more
Milan Kumar Bera
Among many emerging nanoelectronic devices, single-electron transistor (SET) is one of the frontier device architectures that can offer high operating speed at an ultra-low power consumption. It exploits controlled electron tunneling to amplify current an... see more
Sergey Sokolov, Aleksey Pudov, Alexander Rybka, Vladimir Kutny, Alexander Abyzov, Gennadiy Kholomyeyev, Serhii Melnikov
This paper reports on the development, manufacturing and testing of proportional ?-ray detectors filled with gas mixtures based on high-purity xenon. To let the gas mixtures into the detector, a special installation was developed and manufactured, consist... see more
Sergiy Kononenko, Illia Mysiura, Vitaliy Zhurenko, Oleg Shyshkin, Oganes Kalantaryan
The paper deals with angular dependence of ionoluminescence from transparent glossy silica samples. We measured silica ionoluminescence spectra at wavelength range of 400–700 nm for different projectiles (H1+, H2+, He+ 210 and 420 keV) and registered... see more
Lalit Mohan, Sukhender Sukhender, Sudesh Kumar, Shiv R. Bhardwaj, Ajay Singh Verma
Half-Heusler compounds pose unusual behavior because of their variable band gap and as well as both metallic and semi-metallic nature. These compounds can be used in different applications on the basis of band gap tenability. We have discussed the structu... see more
Sukhender Sukhender, Lalit Mohan, Sudesh Kumar, Shiv R. Bhardwaj, Ajay Singh Verma
Here in, we have investigated electronic, optical, elastic and magnetic properties of Co2VZ (Z= As, B, In, Sb) full Heusler compounds by using two different computational methods. One is full potential linearized augmented plane wave (FP-LAPW) method as i... see more
Alexey P. Shcherban, Olga A. Datsenko A. Datsenko
In this work the computation of the equilibrium k0 and limiting k0limB distribution coefficients (DC) of the components according to the state diagrams of binary metal systems Mg–Ag, Ag–Mg, Al– Mg, Mg–Al, Ni–Ga, and Nb–Ge was achieved. These systems belon... see more
Michael Gyan, Francis E. Botchway, Joseph Parbey
Two dimensional (2D) materials are currently gaining a lot of interest due to excellent properties that are different from their bulk structures. Single and few-layered of Transition metal dichalcogenides (TMDCs) have a bandgap that ranges between 1-2 eV,... see more
Kostiantyn V. Lobach, Oleksandr S. Kuprin, Sergiy Yu. Sayenko, Victor M. Voyevodin, Igor V. Kolodiy
The paper describes the challenges and worldwide scientific studies aimed for the manufacturing of the fuel elements claddings tolerant to a loss of coolant accidents (Fukushima NPP, March 2011, Japan) for water-cooled reactors. The main research results ... see more
R. R. Koireng, P. C. Agarwal, Alpana Gokhroo
The phonon dispersion curves for bulk metallic glasses (BMGs) Pd40Ni10Cu30P20 and Pd64Ni16P20 are computed for the longitudinal and transverse phonon frequencies using the simple model given by Bhatia and Singh. Different dielectric screening functions ar... see more
Natalia Filonenko, Alexander Babachenko, Ganna Kononenko, Ekaterina Domina
The study was performed on alloys with a carbon content of 0.37-0.57% (wt.), silicon 0.23-0.29% (wt.), manganese 0.7-0.86% (wt.), the rest– iron. To determine the phase composition of alloys used microstructural, microanalysis and X-ray analysis. In ... see more
Oleh Mykhailovych Pihnastyi, Valery Khodusov
The hydrodynamic Kelvin-Voigt model of production systems with a flow method of organizing production is considered. The main macro parameters of the state of the production line and the relationship between them are determined. The analysis of the main c... see more
Oksana L. Andrieieva, Leonid A. Bulavin, Igor N. Kudriavtsev, Roman S. Sokolenko, Victor I. Tkachenko
The free fall of steel balls of different diameters in viscous liquids placed in a cylindrical vessel at rest or rotating at a constant rate as well as the vortex generation in a liquid rotating in a cylindrical vessel were experimentally studied. To solv... see more
Serhiy V. Lytovchenko, Vyacheslav M. Beresnev, Serhiy A. Klymenko, Bohdan O. Mazilin, M. G. Kovaleva, ?ndrey S. Manohin, Denis V. Horokh, Igor V. Kolodiy, V. U. Novikov, Vyacheslav A. Stolbovoy, Irina V. Doshchechkina, ?leg V. Gluhov
The results of investigations of multi-component nanostructured coatings of (TiAlSiY)N/CrN type are presented. The influence of different variants of substrate surface pretreatment on adhesive strength and hardness of coatings was studied. Pre-treatment o... see more
Hanna M. Cherkashina, Vyacheslav L. Avramenko, Oleh H. Karandashov
The process of forming the cohesive strength of PCM is associated with a decrease in its volume. If there is no mechanical impact on the material, then this process is called shrinkage. Shrinkage occurs during cooling, when the solvent evaporates an... see more
Eduard L. Kuplennikov, Mykola I. Ayzatsky, ?lexander N. Vodin, Olexii S. Deiev, Stanislav N. Olejnik, Iryna S. Timchenko, Sergii S. Kandybei, ?lexander S. Kachan, Larisa P. Korda, Yurii N. Solodovnikov
The prospect of creating an autonomous neutron facility for the detection of fissile nuclear materials in samples, including those in confined volume, is discussed. It is proposed to obtain a reference field of thermal neutrons on the basis of a polyethyl... see more
Viktory A. Lototskaya, Leonid F. Yakovenko, Evgeniy N. Aleksenko, Vyacheslav V. Abraimov, Wen Zhu Shao
The mechanical characteristics (limit of forced elasticity sforc, fracture stress sfr, relative deformation to failure efr) of polyimide films of kapton H type under uniaxial tension conditions along the direction of drawing in the temperature range (4.2-... see more
Mykhailo M. Solovan, H. M. Yamrozyk, Viktor V. Brus, Pavlo D. Maryanchuk
The paper reports on the structural, optical and electrical properties of graphite thin films prepared by two methods: the vacuum-free method "Pencil-on-semiconductor" and via the electron beam evaporation. Graphite thin films prepared by the non-vacuum m... see more
Olexii S. Deiev, Roman M. Dronov, Valentyn A. Shevchenko, Boris I. Shramenko
Radiation technologies based on the use of powerful electron beams and gamma radiation are closely related to the need for dosimetry of these beams. Dosimetry based on the use of the inelastic gamma-ray scattering reaction on a number of nuclei with the f... see more