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Actual problems of Mathematics, Physics and Mecanics
THERMIONIC EMISSION PROPERTIES OF OXIDIZED HAFNIUM, ZIRCONIUM, TITANIUM, AND NIOBIUM IN A BARIUM ATOM FLUX
This paper investigates the thermionic emission and adsorption properties of oxidized transition metals (Hf, Zr, Ti, and Nb) exposed to a flux of barium atoms. The surface cleanliness and oxidation kinetics were monitored using Auger electron spectroscopy under ultra-high vacuum conditions. The...
3 August 2026, 22:13
INVESTIGATION OF PLASMA CHARACTERISTICS PRODUCED ON A BINARY SODIUM CHLORIDE SURFACE
The present study examines the plasma produced when a solid NaCl sample is exposed to pulsed Nd:YAG laser radiation. Measurements were performed at a vacuum pressure of 10⁻² Torr with a 1064 nmlaser pulselasting20ns. Emission spectral were used to evaluate two principal plasma quantities: electron...
3 August 2026, 22:12
NONTHERMAL PLASMA APPLICATION TO HYDROGEN PRODUCTION
Nonthermal plasma (NTP) is being investigated as an electrically driven route for hydrogen production because energetic electrons can activate methane, water vapour and carbon dioxide without requiring the entire gas phase to reach thermochemical equilibrium. This article compares dielectric...
3 August 2026, 22:11
INVESTIGATION OF SCATTERING Ne+ AND Ar+ IONS FROM BLACK PHOSPHORINE AT THE GLANCING INCIDENCE
In this paper, the scattering process of Ne+ and Ar+ ions bombarding the surface of black phosphorene at grazing (small) angles is computer-simulated using the binary collision approximation method. The characteristic trajectories and energy spectra of the Ne+ and Ar+ ions scattered from this...
3 August 2026, 22:10
ANALYSIS OF FLUID TEMPERATURE CHANGES DURING DISCHARGE IN HEAT ACCUMULATORS AND VALIDATION OF THE MATHEMATICAL MODEL
Among heat accumulators, hot water storage tanks are the most widely used due to their low cost, simplicity, and ease of operation, as well as their low environmental impact. The temperature distribution within a hot water storage tank is a key factor governing the thermal behavior and hot water...
3 August 2026, 22:09
A COMPREHENSIVE STUDY OF THE STRUCTURE, MORPHOLOGY, AND WORK FUNCTION OF MoO₃ THIN FILMS DEPOSITEDBYMAGNETRONSPUTTERING
In this study, the phase composition, surface morphology, and work function of molybdenum oxide (MoO₃) thin films deposited on siliconsubstratesby magnetron sputtering were comprehensively investigated. X-ray diffraction (XRD) analysis revealed that the films exhibited an amorphous structure. The...
3 August 2026, 22:08
DEPENDENCE OF SELF-HEATING AND SHORT-CHANNEL EFFECTS ON OXIDE MATERIALS IN A 2D MoS2 CHANNEL-BASED MOSFET
This study presents a comprehensive numerical investigation of the influence of gate oxide and buried oxide (BOX) materials on the electrothermal performance of two-dimensional MoS2-based metal–oxide–semiconductor (MOS) transistors. Particular attention is devoted to the analysis of the selfheating...
3 July 2026, 22:14
OPTICAL AND ELECTRICAL ANALYSIS OF CIGS SOLAR CELLS ENHANCED WITH METALLIC NANORODS
In this study, we present a two-dimensional numerical analysis of thinfilm CIGS solar cells enhanced with surface-integrated metallic nanorods. Employing ANSYS Lumerical’s FDTD and CHARGE solvers, we evaluated the optical and electrical characteristics of cells with copper (Cu), gold (Au), and...
3 July 2026, 22:13
IMPACT OF GEOMETRIC SCALING ON SELF-HEATING EFFECTS IN GaAs-BASED GATE-ALL-AROUND FIELD-EFFECT TRANSISTORS
As gate-all-around field-effect transistors (GAAFETs) are scaled toward sub-10 nm gate lengths and nanowire diameters, self-heating effects (SHE) become an increasingly dominant reliability and performance concern, particularly for high-mobility III–V channel materials such as GaAs whose thermal...
3 June 2026, 22:13
CHANGE IN THE WIDTH OF THE VOLUME CHARGE FIELD OF P–N JUNCTION DIODES UNDER THE INFLUENCE OF A MAGNETIC FIELD
In this article, the volt-ampere characteristic of p–n junction diodes under the influence of a magnetic field and the change in the volume charge field parameters were theoretically studied. That is, the effect of the electromotive force (EMF), the Lorentz force, and the change in the distribution...
3 June 2026, 22:12