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ANALYSIS OF IDENTIFICATION METHODS OF NON-METALLIC INCLUSIONS IN STEEL GRADE 110G13L

The article discusses methods for identifying non-metallic inclusions in 110G13L steel. Particular attention is paid to the electrolytic extraction method, which allows the identification of oxides, sulfides, and nitrides. Various methods for analyzing inclusions are considered, including...

Actual problems in modern technical sciences / 2025 / March

Ashurov Khisrav Khurshid Ugli, Khamroev Nurbek Nurilloevich, Yakhshiev Sherali Namozovich, Tangatarova Laylo Alijon Kizi

Volume 9 | Issue 3

3 March 2025, 21:50

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MICROSTRUCTURAL PROPERTIES OF COPPER-GRAPHITE COMPOSITES PREPARED BY COLD PRESSING METHOD

This study investigates the fabrication and characterization of coppergraphite (CuGr) composites with varying graphite content (10, 20, and 30 wt.%) for potential applications in electrical contacts, such as pantograph sliders for high-speed trains. The composites were prepared using mechanical...

Actual problems in modern technical sciences / 2025 / March

Sultanov Sulaymon Safarboy Ugli, Ismoilov Rakhmatjon Ilkhom Ugli, Mirzayev Otabek Taxir Ugli, Kadirov Islom Reyimbergan Ugli, Shakirov Shukhrat Musaevich, Allabergenov Bunyod Farkhodovich

Volume 9 | Issue 3

3 March 2025, 21:50

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DISTRIBUTION OF RESIDUAL POROSITY BY HEIGHT IN VARIOUS SCHEMES OF PRESSING BUSHINGS FROM POWDERS

This study investigates the influence of pressing schemes on the distribution of residual porosity in powder metallurgy products, focusing on onesided and two-sided cold pressing methods. Using analytical modeling, the distribution of porosity along the height of a bushing-shaped compact is...

Actual problems in modern technical sciences / 2025 / March

Shakirov Shukhrat Musaevich, Karimov Shoir Akhrarovich

Volume 9 | Issue 3

3 March 2025, 21:50

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DEVELOPMENT AND CURRENT STATE OF THE PASSENGER TRANSPORT SYSTEM IN RAIL TRANSPORT

The study of the organization of passenger transport rail transport in the state currently consists of identifying a number of important aspects that affect the quality of service provided. The development of e-commerce in the field of rail transport and the use of modern e-commerce technologies...

Actual problems in modern technical sciences / 2025 / March

Ibragimova Gulshan Ruslanovna, Mirzabekova Umida Nishanbayevna, Kulahmetov Oybek Pochchahonovich

Volume 9 | Issue 3

3 March 2025, 21:50

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PROSPECTS FOR MANUFACTURING MODERN STRUCTURAL MATERIALS BASED ON IRON POWDER

This article analyzes modern technologies used in obtaining structural materials based on iron powder with high physical-mechanical and operational properties. It examines raw powder materials, practical and scientific results achieved in the field, and existing challenges in this area....

Actual problems in modern technical sciences / 2025 / March

Shakirov Shukhrat Musaevich

Volume 9 | Issue 3

3 March 2025, 21:50

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DEVELOPMENT AND IMPLEMENTATION OF A SPECIAL DISC MODULAR CUTTER FOR SHAPING THREADS TO TRAPEZOIDAL PROFILES ON INTERNAL SURFACES

The article examines the development and implementation of a special disc cutter for shaping threads on trapezoidal profiles in holes of complexconfiguration housing parts made of structural steels and cast iron under the conditions of the “GIDRO STANKO SERVIS” LLC production base....

Actual problems in modern technical sciences / 2025 / March

Mardonov Bakhtiyor Teshayevich, Shakulov Begmamat Kurbanovich, Fayziyev Oybek Sidikovich, Tangatarova Laylo Alijon Kizi, Qarshiboyev Sunnatillo Rustambekovich

Volume 9 | Issue 3

3 March 2025, 21:50

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INFLUENCE OF POWDER PRESSING SCHEME ON THE STRESS-STRAIN STATE OF BUSHING-TYPE PRESS BRIQUETTE

This study investigates the compaction of iron-based powders to produce high-density components with enhanced mechanical properties. A mathematical model analyzes stress distribution, porosity, and deformation under different pressing schemes, considering the influence of external friction. The...

Actual problems in modern technical sciences / 2025 / March

Shakirov Shukhrat Musaevich

Volume 9 | Issue 3

3 March 2025, 21:50

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THE IMPORTANCE OF STUDENT ENGAGEMENT IN COLLABORATIVE LEARNING

This article focuses on the significance of student engagement in collaborative learning contexts. It observes how active involvement, communication, and teamwork are vital to fostering deeper understanding, critical thinking, and academic achievement. The research highlights the importance of...

Actual problems in modern pedogogy and pshychology / 2025 / February

Khalilova Nasiba Djamolovna

Volume 9 | Issue 2

3 February 2025, 21:50

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THE EFFECT OF PEER TUTORING ON COLLABORATIVE LEARNING

This study examines the role of peer tutors as intermediaries between students and educators, analyzing how their involvement influences academic achievement, classroom dynamics, and learning outcomes. Peer tutoring has attracted significant academic attention within the education sector. It is a...

Actual problems in modern pedogogy and pshychology / 2025 / February

Khalilova Nasiba Djamolovna

Volume 9 | Issue 2

3 February 2025, 21:50

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CREATING A RULE-BASED QUESTION-ANSWERING SYSTEM IN UZBEK: AN EXAMPLE OF THE UNIVERSITY ADMISSION PROCESS

This article examines the issue of creating a rule-based question-andanswer system in the Uzbek language aimed at automatically responding to questions arising during the admission process to higher education institutions (HEIs). The system processes users’ questions by normalizing their...

Modern problems of Philology and Linguistics / 2025 / February

Kurbonova Ruzikajon Ulug‘bek Kizi, Sharipov Maksud Siddiqovich

Volume 9 | Issue 2

3 February 2025, 21:50

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