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EVALUATION OF C20@Cn and C60@Cn (n=1, 3) EXOFULLERENES ADSORBED ON THE SILICON Si(100)2×1 SURFACE IN TERMS OF TIME PARAMETERS IN THE ABSENCE OF FULLERENE ADSORPTION
In this research work, the temperature dependence (T...
3 November 2025, 22:00
SCATTERING OF A C20 FULLERENE MOLECULE ON A GRAPHENE SURFACE AT AN ANGLE OF 90 DEGREES
The study investigated the interaction of C20 fullerene with graphene using molecular dynamics simulations (LAMMPS). It was found that after a collision, a C20 fullerene molecule does not immediately bounce off the graphene surface, but instead adheres to it, forming adsorption. Furthermore, when...
3 October 2025, 21:50
ANALYSIS OF CONDUCTION CURRENT AND DISPLACEMENT CURRENT IN THE CHARGING AND DISCHARGING PROCESS OF A CAPACITOR
This article seeks to address complex and problematic questions encountered in the physics practicum exercise “Studying the Charging and Discharging Process of a Capacitor.” Another important aspect is ensuring that students understand this laboratory work not only theoretically but also through...
3 September 2025, 21:50
OPTOELECTRONIC DEVICE FOR INFORMATION PROTECTION IN FIBER-OPTIC COMMUNICATION LINES
All possible unauthorized accesses to fiber-optic communication systems were analyzed, and destructive, non-destructive, and optical-radio wave methods of data collection were considered. An optoelectronic method for countering unauthorized data collection and modern technical means for...
3 September 2025, 21:50
NUMERICAL CALCULATION OF OPTIMAL DURATION AND TEMPERATURE OF DIFFUSION OF IMPURITY ATOMS OF SULFUR AND MANGANESE
The paper presents a numerical method of the diffusion process whereas duration and temperature conditions of the diffusion could be set finetuned in advance. Impurity atoms of sulfur and the transition element manganese in single-crystal silicon were selected as objects of study. Sulfur and...
3 August 2025, 21:50
STUDY OF THE PROCESSES OF TEMPERATURE MIGRATION OF IRON EXOATOM ON THE SURFACE OF FULLERENE C60 BY MOLECULAR DYNAMICS METHODS
The paper studies the dynamic process of migration of iron exoatom on the surface of free fullerene C60 using molecular dynamics methods (LAMMPS). It is found that pronounced migration of iron exoatom occurs at temperatures above 1000K. At a temperature of 1100K, jumps of the exoatom are mainly...
3 August 2025, 21:50
THE IMPORTANCE OF PHYSICAL MODELS IN SIMULATING DEGRADATION EFFECTS IN GaN NANOWIRE FETS
This article explores the critical role of physical models in simulating degradation effects in GaN nanowire field-effect transistors (NW-FETs). With the rapid advancement of nanoscale device technology, accurate prediction of electrical and radio-frequency (RF) characteristics under stress...
3 August 2025, 21:50
ON THE NEGATIVE ORDER MATRIX MODIFIED KORTEWEG-DE VRIES EQUATION WITH A SOURCE
In this paper, we integrate the negative order matrix modified Korteweg-de Vries (KdV) equation with a self-consistent source in the class of rapidly decreasing functions. We derive the temporal dependence of the scattering data of the Dirac operator....
3 June 2025, 21:50
A COMPARATIVE ANALYSIS OF HYDROGEN TECHNOLOGY DEVELOPMENT IN SOUTH KOREA AND ITS APPLICABILITY TO UZBEKISTAN
The development of hydrogen energy technologies has gained global momentum as countries seek sustainable and low-carbon alternatives to conventional fossil fuels. This paper presents a comparative analysis of hydrogen technology development in South Korea and its applicability to the emerging...
3 April 2025, 21:50
A MATHEMATICAL INVESTIGATION OF THE PROCESSES OF SALT AND MOISTURE DISTRIBUTION IN SOIL BASED ON A CROSSDIFFUSION MODEL
This paper presents a mathematical modeling approach for simulating coupled salt and moisture transport in soil using a cross-diffusion system of equations. The study highlights the relevance of salinization and the disruption of the water-salt balance in agricultural land. The developed model...
3 April 2025, 21:50