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Wet Chemical Synthesis of AlxGa1−xAs Nanostructures: Investigation of Properties and Growth Mechanisms
(Crystals, 2024)This study focuses on the wet chemical synthesis of AlxGa1−xAs nanostructures, highlighting how different deposition conditions affect the film morphology and material properties. Electrochemical etching was used to texture GaAs substrates, enhancing mechanical adhesion and chemical bonding. Various deposition regimes, including voltage switching, gradual voltage increase, and ...2026-04-06 -
USING COAL FLOTATION WASTE AS A HEAT-INSULATING BILLING FOR THE HEAD PART OF A FORGING INGOT
(Eurasian Physical Technical Journal, 2024)The experience of using coal flotation waste as a weakly exothermic insulating backfill for insulating the head part of forging dead-melted steel ingots is presented. It has been shown that when using weakly exothermic fills based on single-component fills in the form of coal flotation waste, it is possible to reduce the chemical heterogeneity of the ingot by producing a ...2026-04-06 -
Using semantic paradigms as tools for foreign language teaching: theory and practice
(Scientific Herald of Uzhhorod University Series “Physics”, 2024)Relevance. The relevance of the aforementioned study topic is motivated by the progressive activity of mankind in terms of the development of the information society, the growing demand for foreign language skills and the problem of learning a foreign language, as the large amount of information that needs to be assimilated certainly slows down this process. Purpose. The ...2026-04-06 -
Unveiling the Structural and Optical Properties of MgAl2O4 Single Crystals Irradiated by Swift Heavy Ions
(Materials, 2024)A synthetic single crystal of magnesium-aluminate spinel was irradiated perpendicularly to the (111) plane with swift heavy xenon ions with an energy of 220 MeV. The modified layer was attested based on Raman scattering spectra recorded while focusing on the surface. A decrease in surface crystallinity was observed, reflected in the changes in fundamental optical characteristics such ...2026-04-06 -
Unsupervised Clustering and Ensemble Learning for Classifying Lip Articulation in Fingerspelling
(Sensors, 2025)This paper presents a new methodology for analyzing lip articulation during fingerspelling aimed at extracting robust visual patterns that can overcome the inherent ambiguity and variability of lip shape. The proposed approach is based on unsupervised clustering of lip movement trajectories to identify consistent articulatory patterns across different time profiles. The ...2026-04-06 -
Traveling wave solutions of the two-dimensional Konopelchenko-Dubrovsky equation
(Journal of Physics: Conference Series, 2025)In this study, the (2+1)-dimensional system of Konopelchenko-Dubrovsky is studied. This equation extends the Korteweg-de Vries(KdV) equation, that describes the evolution of small amplitude dispersion waves generated in shallow water. The tan-cot method is applied to receive the traveling wave solutions. It is presented that the tan-cot method is a useful mathematical tool for ...2026-04-06 -
Transit cosmological models in F(R,T¯) gravity theory
(European Physical Journal C, 2024)In the present paper, we investigate some exact cosmological models in F(R,T¯) gravity theory. We have considered the arbitrary function F(R,T¯)=R+λT¯ where λ is an arbitrary constant, R,T¯ are respectively, the Ricci-scalar curvature and the torsion. We have solved the field equations in a flat FLRW spacetime manifold for Hubble parameter and using the MCMC analysis, we have ...2026-04-06 -
Three-meson τ decays involving kaons and η mesons in the NJL model
(Physical Review D, 2024)Branching fractions of decays τ→K0π-ηντ, τ→K-π0ηντ, τ→K-K0ηντ, and τ→K-ηηντ are calculated in the U(3)×U(3) chiral Nambu-Jona-Lasinio quark model. The contact, vector, axial-vector, and pseudoscalar channels are considered. It is shown that the axial vector channel is dominant. The obtained results are in satisfactory agreement with experiment.2026-04-06 -
Thin films of polyanilines and polymer nanocomposites for the development of chemical sensors
(Eurasian Journal of Physics and Functional Materials, 2024)The control and monitoring of humidity levels and the concentration of hazardous gases in the atmosphere are subjects of significant interest across various fields. Consequently, current research focuses primarily on the advancement of sensitive materials tailored for humidity and toxic gas sensors, aiming to achieve heightened performance and sensitivity while operating ...2026-04-06 -
The Thermal Stability and Photoluminescence of ZnSeO3 Nanocrystals Chemically Synthesized into SiO2/Si Track Templates
(Crystals, 2024)We report the effect of high-temperature treatment on the structure and photoluminescence of zinc selenite nanocrystals (ZnSeO3 ) deposited into SiO2/Si track templates. The templates were formed via irradiation with Xe ions (200 MeV, 108 ions/cm2 ) followed by etching in HF solution. ZnSeO3 nanocrystals were obtained via chemical deposition from the aqueous solution of ...2026-04-06 -
The Synthesis and Characterization of CdS Nanostructures Using a SiO2/Si Ion-Track Template
(Crystals, 2024)In the present work, we present the process of preparing CdS nanostructures based on templating synthesis using chemical deposition (CD) on a SiO2/Si substrate. A 0.7 µm thick silicon dioxide film was thermally prepared on the surface of an n-type conduction Si wafer, followed by the creation of latent ion tracks on the film by irradiating them with swift heavy Xe ions with ...2026-04-06 -
The Role of Methods for Applying Cucurbit[6]uril to Hydroxyapatite for the Morphological Tuning of Its Surface in the Process of Obtaining Composite Materials
(Materials, 2024)In this work, composite materials were obtained for the first time using various methods and the dependences of the resulting surface morphologies were investigated. This involves modifying the surface with cucurbit[n]urils, which are highly promising macrocyclic compounds. The process includes applying cucurbit[6]uril to the hydroxyapatite surface in water using different m ...2026-04-06 -
Thermodynamics of a newly constructed black hole coupled with nonlinear electrodynamics and cloud of strings
(Physics of the Dark Universe, 2024)This paper finds an exact singular black hole solution in the presence of nonlinear electrodynamics as the source of matter field surrounded by a cloud of strings in 4D AdS spacetime. Here, the presence of the cloud of string, the usual Bardeen solution, becomes singular. The obtained black hole solution interpolates with the AdS Letelier black hole in the absence of both the ...2026-04-06 -
Thermodynamic constraints and observational validation of the deceleration parameter
(Nuclear Physics, Section B, 2025)In this work, we propose a two-parameter parametrization for the deceleration parameter q(z) grounded in thermodynamic constraints and applied it to explore the evolution of the universe. The second law of thermodynamics imposes essential conditions to ensure that the system approaches equilibrium in late times, requiring q(z)≥−1 and [Formula presented] as z→−1. These constraints ...2026-04-06 -
Thermodynamic behavior and phase transitions of black holes with a cloud of strings and perfect fluid dark matter
(Nuclear Physics, Section B, 2025)This paper presents an exact black hole solution within a cloud of strings (CoS) and a perfect fluid dark matter (PFDM) field. The derived black hole solution interpolates between the AdS-charged Letelier black hole in the absence of the PFDM field and the AdS Reissner-Nordström black hole in the limiting case of the PFDM and CoS parameters. The thermodynamic properties of the ...2026-04-06 -
Thermochemical Characterization and Pyrolysis of Fish Processing W ocessing Waste to Bioener o Bioenergy, including the synthesis of , including the synthesis of biohydrogen
(Eurasian Journal of Physics and Functional Materials, 2025)The fish processing produces a large amount of fish waste, which is hazardous for landfill disposal and environmental sustainability. In this research, the fish waste from Caranx ignobilis (locally known as Putih) was characterized and pyrolyzed to manage the waste and convert it into valuable products for bioenergy. Analysis of the fish oil and the pyrolysis biochar were done ...2026-04-06 -
Theoretical probes of Higgs boson-axion nonperturbative couplings
(PHYSICAL REVIEW D, 2024)In this work we investigate the phenomenological implications of several nontrivial Higgs-boson- axion couplings, which cover most of the possible nonperturbative scenarios. Specifically we consider the combination of having higher-order nonrenormalizable Higgs-boson-axion couplings originating from a weakly coupled effective theory combined with nonperturbative couplings of the ...2026-04-06 -
The Influence of Variations in Synthesis Conditions on the Phase Composition, Strength and Shielding Characteristics of CuBi2O4 Films
(Crystals, 2024)This paper presents the results of the influence of variation of the synthesis conditions of CuBi/CuBi2O4 films with a change in the applied potential difference, as well as a change in electrolyte solutions (in the case of adding cobalt or nickel sulfates to the electrolyte solution) on changes in the phase composition, structural parameters and strength characteristics of ...2026-04-06 -
THE EFFICIENCY DEPENDANCE OF A SINGLE-CIRCUIT POWER UNIT WITH A HELIUM-COOLED REACTOR AND A HYDROGEN MODULE ON THE DEGREE OF REGENERATION
(Eurasian Physical Technical Journal, 2025)The most attractive single-circuit scheme of the power unit was chosen. Helium at the outlet of the reactor core enters the steam generator, where it gives part of the heat to generate highly superheated steam for the electrolysis plant. Next, helium operates in a closed gas turbine cycle with heat recovery. A gas-cooled reactor with a turbine and compressor allows the use ...2026-04-06 -
The Effect of 147 MeV 84Kr and 24.5 MeV 14N Ions Irradiation on the Optical Absorption, Luminescence, Raman Spectra and Surface of BaFBr Crystals
(Crystals, 2024)Today, BaFBr crystals activated by europium ions are used as detectors that store absorbed energy in metastable centers. In these materials, the image created by X-ray irradiation remains stable in the dark for long periods at room temperature. As a result, memory image plates are created, and they are extended to other types of ionizing radiation as well. Despite significant ...2026-04-06
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