Actual problems of Mathematics, Physics and Mecanics
Actual problems in modern technical sciences
Actual problems of Natural Sciences
Actual problems of history, philosophy and sociology
Actual problems in modern tourizm and economics
Modern problems of Philology and Linguistics
Actual problems in modern pedogogy and pshychology
Actual problems in modern agriculture
Actual problems in modern art and architecture
Actual problems of Mathematics, Physics and Mecanics
PROBLEMS AND PROSPECTS FOR THE USE OF CONCENTRATED ENERGY PLANTS WITH PHOTOCONVERTERS
The efficiency of solar energy conversion using semiconductor elements is being developed in the following areas: increasing the efficiency of photovoltaic cells through the search for new materials and methods of their processing; use of solar energy concentrators; development of solar orientation...
3 October 2024, 21:50
CHANGES IN THE ELECTROPHYSICAL PROPERTIES OF THE SEMICONDUCTOR-DIELECTRIC BOUNDARY REGION UNDER THE INFLUENCE OF AN EXTERNAL FIELD AND ITS EFFECT ON THE CHARACTERISTICS OF FIELD-EFFECT TRANSISTORS
In this article, it is theoretically analyzed that when there are surface states and there is no external voltage, the energy zones of the semiconductor are bent, that is, there is an electric field introduced at the border of the semiconductor-dielectric separation. The presence of such a field...
3 October 2024, 21:50
TWO-DIMENSIONAL TRANSIENT HEAT TRANSFER PROBLEMS FOR INHOMOGENEOUS BODIES SIMULATED USING FEM
The process of heat transfer in a plate of inhomogeneous material is investigated in the article, based on the solution of a two-dimensional problem of heat conduction by the finite element method. Straight-sided finite elements are used to solve the plane problem of heat conduction. Basic...
3 October 2024, 21:50
OPTIMIZING AXIAL ABSORPTION IN END-SIDE PUMPED SOLAR LASERS
One of key problems in directly solar pumped solid-state lasers is thermal management. It can significantly degrade solar laser output characteristic. In this respect, we investigated the potential of composite active media to optimize absorption distribution using simulation models in end-side...
3 October 2024, 21:50
IMPACT OF OXIDE MATERIALS ON SELF-HEATING EFFECT AND SUBTHRESHOLD SLOPE IN 2D MoS2-BASED MOSFET
In this paper self-heating effect (SHE) and subthreshold slope (SS) at different gate and back oxide materials in 2D MoS2-based MOSFET were considered through simulation. In this study, the Al2O3 and HfO2 oxides were selected as gate oxide materials and SiO2 and HfO2 as back oxide (BOX) materials....
3 September 2024, 21:50
SIMULATION OF LED EMISSION USING MONTE-CARLO PHOTON TRACING TECHNIQUE
A new method for modeling the spatial radiative characteristics of light-emitting diodes using Monte Carlo photon tracing has been proposed. The key advantage of this approach is its ability to model radiative characteristics directly from manufacturer-provided datasheet emission patterns,...
3 September 2024, 21:50
EVALUATION OF SENTIMENT ANALYSIS DATASET USING MACHINE LEARNING AND DEEP LEARNING MODELS
This paper introduces the results that were obtained after conducting the experiments. To create the baseline models for Uzbek sentiment analysis, it has been chosen various classifiers from different families, including different methods of Support Vector Machines (SVM), and recent Deep Learning...
3 August 2024, 21:50
PLASMA PARAMETERS IN NANOSECOND-LASER-PRODUCED SILICON AND INDIUM
We study the properties of laser plasma at normal atmospheric pressure, which is induced on the surface of silicon and indium under the action of an Nd: YAG laser beam with a wavelength of 1064 nm and a pulse duration of 10 ns using the method of laser spectroscopy. The electron density in the...
3 August 2024, 21:50
FIRST PRINCIPLE STUDIES ON STRUCTURAL AND ELECTRONIC PROPERTIES OF GALLIUM PHOSPHIDE AND SOLID SOLUTION (Si2)x(GaP)1-x.
In this work, the structural and electronic properties of gallium phosphide (GaP) and (Si2)x(GaP)1-x solid solution were modeled using the density functional theory (DFT). This method is an efficient and accurate method for calculating some parameters of semiconductor materials. The hybrid...
3 July 2024, 21:50
АUTОMАTIС SUMMАRIZАTIОN ОF TEXT IN UZBEK LANGUAGE USING KEYWОRDS
Text summаrizаtiоn is а tаsk in nаturаl lаnguаge рrосessing thаt invоlves using а соmрuter tо сreаte а соndensed versiоn оf а given text. The result thаt is рrоduсed is knоwn аs а summаry, аnd it оught tо be а fаir reрresentаtiоn оf the entire text—thаt is, it оught tо inсlude the mоst сruсiаl...
3 July 2024, 21:50