Volume 10 » KhorezmScience.uz

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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Tursunmetov Kamiljan Axmetovich, Turgunboyev Farxod Yusupjanovich, Ergasheva Iroda Islomjon qizi

Volume 10 | Issue 8

3 August 2026, 22:13

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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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Davletov Ikrom Yusubovich, Vapayev Murod Ergashovich, Japakov Azamat Ikrombayevich, Sotimova Mahbuba Qadamoy qizi

Volume 10 | Issue 8

3 August 2026, 22:12

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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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Maftuna Madrimova, Jakhongir Matyakubov

Volume 10 | Issue 8

3 August 2026, 22:11

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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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Kutliev Uchkun Otoboevich, Sattarova Onaxon Abdurasulovna

Volume 10 | Issue 8

3 August 2026, 22:10

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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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Mirzaev Mirfayz Salimovich, Hikmatov Behzod Amonovich

Volume 10 | Issue 8

3 August 2026, 22:09

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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...

Actual problems of Mathematics, Physics and Mecanics / 2026 / August

Sharopov Utkirjon Bahodirovich, Kuryozov Furqat Odilbekovich

Volume 10 | Issue 8

3 August 2026, 22:08

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EFFECT OF MINERAL FERTILIZER RATES ON THE GROWTH, GRAIN YIELD, AND ECONOMIC EFFICIENCY OF SORGHUM

This study evaluated the effects of mineral fertilizer rates on the leaf area index, grain yield, and economic efficiency of the “Daulet” sorghum cultivar. The highest leaf area index of 5.21 m²/m² was recorded with N240P140K120 kg/ha. However, the highest grain yield of 6.12 t/ha, net profit of 18...

Actual problems in modern agriculture / 2026 / August

Latipova Ruzajon Shavkatovna

Volume 10 | Issue 8

3 August 2026, 22:07

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SYNTHESIS AND SINGLE-CRYSTAL X-RAY DIFFRACTION STUDY OF A COPPER(II) COMPLEX WITH 2-AMINO-5-ETHYLTHIO-1,3,4-THIADIAZOLE AND 1,10-PHENANTHROLINE

This paper presents the results on the synthesis and study of the structure of a new mononuclear complex of copper nitrate with 2-amino-5-ethylthio-1,3,4-thiadiazole and 1,10-phenanthroline. Using the method X-ray diffraction analysis, the structure of the complex was studied. It was shown that...

Actual problems of Natural Sciences / 2026 / August

Matmuratova Zulaykho Ikromboy qizi, Karajanova Shakhnoza Daryabayevna, Torambetov Batirbay Smetovich

Volume 10 | Issue 8

3 August 2026, 22:06

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TRANSFORMATION OF PRINT MEDIA IN NAVOI REGION: HISTORICAL STAGES AND DEVELOPMENT TRENDS (1992-2025)

This article examines the historical transformation of print media in Navoi Region between 1992 and 2025. Drawing on archival materials, localperiodicals, statistical data, and relevant historical sources, the study identifies the main stages in the development of the regional press. Particular...

Actual problems of history, philosophy and sociology / 2026 / August

Abduraxmonov Mirsaid Muzaffarovich

Volume 10 | Issue 8

3 August 2026, 22:05

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