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This paper investigates the self-similar structure of a class of nonlinear diffusion systems with coupled dynamics, where crossinteractions between components substantially affect the long-time evolution and the formation of singular regimes. We focus on the qualitative and quantitative description...

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

Aziza Nurumova, Abrorjon Mamatov

Volume 10 | Issue 3

3 March 2026, 22:00

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A LINEAR EVASION GAME PROBLEM WITH 𝑮𝑮𝒓 − CONSTRAINTS ON CONTROLS OF PLAYERS

In this article, a differential game of evasion is explored for the linear motion dynamics of players (Pursuer and Evader) when the Pursuer control is subject to geometric constraint (or 𝐺-constraint) and the Evader control is subject to Grönwall-type constraint (or 𝐺𝑟-constraint). To solve the...

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

Juraev Bahodirjon Inomjon Ugli, Turgunov Lazizbek Abdukakhkhor Ugli

Volume 10 | Issue 3

3 March 2026, 22:00

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MODELING OF THE STRUCTURAL AND ELECTRONIC PROPERTIES OF THE (InSb)1 – x(Sn2)x SOLID SOLUTION

This work presents a first-principles study of the structural and electronic properties of the (InSb)1-x(Sn2)x solid solution using density functional theory within the Quantum ESPRESSO framework. The results show that Sn incorporation modifies the electronic structure while preserving the direct...

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

Umida Asatova, Shahzod Masharipov, Shavkat Ismailov, Kuzibaev Dilshodbek Sanat ugli

Volume 10 | Issue 3

3 March 2026, 22:00

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EFFECT OF INTERGRANULAR BARRIERS ON CHARGE CARRIER MOBILITY IN Mg3Sb2 MATERIAL

This study analyzes the effect of grain-boundary potential barriers on charge carrier mobility in Mg3Sb2-based thermoelectric materials. These barriers reduce mobility but may enhance the Seebeck coefficient via energy filtering. Their effects can be controlled through grain size engineering,...

Actual problems of Natural Sciences / 2026 / March

Omonboyev Fazliddin Lutfiddin Ugli

Volume 10 | Issue 3

3 March 2026, 22:00

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THERMAL ANALYSIS OF Ni (II) OXALATE-ATSETATE COMPLEX COMPOUNDS

In this work, methods for the synthesis of complex compounds of Ni (II) oxalate with Ca, Cu (II), Co acetates were studied and reactions were carried out. In order to study the composition of the obtained complex compounds, elemental analysis was carried out and the theoretical results were...

Actual problems of Natural Sciences / 2026 / March

Zaripova Dinora Ibragimovna, Kadirova Shakhnoza Abdukhalilovna, Abdullayeva Zubayda Shavkatovna, Masharipov Azamat Tursinboyevich

Volume 10 | Issue 3

3 March 2026, 22:00

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AUTOMATED LASER-BASED BIRD DETERRENCE SYSTEM FOR AIRPORTS

The paper presents an intelligent laser-based bird deterrence system aimed at enhancing ornithological safety at civil aviation facilities. The video subsystem performs continuous monitoring of the aerodrome area and automatically detects birds within potentially hazardous zones. The system is...

Actual problems in modern technical sciences / 2026 / March

Kuldashov Obbozjon Khokimovich, Mannanov Muzaffar Ibragimovich, Nabiev Davronbek Olimjon Ugli

Volume 10 | Issue 3

3 March 2026, 22:00

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VALIDATION OF A SIMPLIFIED DEGREE-DAY ENERGY MODEL FOR RURAL RESIDENTIAL BUILDINGS IN UZBEKISTAN USING MONITORED PILOT-HOUSE DATA

This study validates a simplified steady-state heating degree-day (HDD) energy model against measured natural gas consumption from two rural houses in Uzbekistan's Tashkent region during the 2014–2015 heating season: an energy-efficient pilot house (100 mm mineral wool insulation,...

Actual problems in modern technical sciences / 2026 / March

Asanova Sayyora Kalbay Kizi, Halimov Akbar Sodiqovich, Axatov Jasurjon Saidovich

Volume 10 | Issue 3

3 March 2026, 22:00

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IMPROVING PRODUCT QUALITY AND ECONOMIC EFFICIENCY THROUGH COMPREHENSIVE KAIZEN-BASED OPTIMIZATION OF PRODUCTION PROCESSES AT HYDROMETALLURGICAL PLANT NUMBER TWO OF THE NAVOI MINING AND METALLURGICAL COMBINE

This paper investigates the comprehensive optimization of production processes based on Kaizen tools using the example of the 2nd Hydrometallurgical Plant of the Navoi Mining and Metallurgical Combine. The study analyzes ore processing operations carried out by ball mills in the crushing...

Actual problems in modern technical sciences / 2026 / March

Ochilov Ravshan Hakimovich

Volume 10 | Issue 3

3 March 2026, 22:00

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METHODS FOR IMPROVING PRODUCTION EFFICIENCY THROUGH KAIZEN TOOLS AT THE NAVOI MACHINE-BUILDING PLANT

This article analyzes the scientific and practical aspects of implementing Kaizen tools as one of the modern methods for improving production efficiency in the mechanical engineering industry. The production system is considered as the research object, where existing losses are identified and...

Actual problems in modern technical sciences / 2026 / March

G‘afforov Bekzod Amin Ugli

Volume 10 | Issue 3

3 March 2026, 22:00

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ANALYSIS OF TECHNOLOGIES FOR REGENERATION OF MOULDING MIXTURES USED IN CASTING PRODUCTION

This article analyzes the scientific and technical foundations and practical significance of regeneration technologies for sand molding mixtures used in foundry production. The problems of restoring quartz sand and residual binders that lose their properties under the influence of high temperatures...

Actual problems in modern technical sciences / 2026 / March

Rasilova Zarina G‘ulomjanovna

Volume 10 | Issue 3

3 March 2026, 22:00

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