Digital technologies in industry
type: channel
description: The scientific-technical journal 'Digital Technologies in Industry' specializes in publishing the latest research articles on the introduction of new technologies in the industrial sector, their practical applications, and innovative approaches. Our journal focuses on scientific research and technical studies in the fields of industrial process automation, artificial intelligence, digital control systems, and other advanced technologies. Our journal provides a platform for experts, scientists, and practitioners to share knowledge and experience on the successful implementation of modern technologies in industry. The scientific-technical journal "Digital Technologies in Industry" (e-ISSN: 3030-3214) is recommended, based on Resolution No. 358 of the Higher Attestation Commission under the Ministry of Higher Education, Science, and Innovation of the Republic of Uzbekistan dated July 30, 2024, for publishing the main scientific results of dissertations in the following specializations for candidates for the academic degrees of Doctor of Philosophy (PhD) and Doctor of Science (DSc) in technical sciences: ✅05.00.00 - Technical Sciences ✅04.00.00 - Geological and Mineralogical Sciences ✅02.00.00 - Chemical Sciences (E)ISSN: 3030-3214 DOI: 10.70769/3030-3214.SRT
publisher: Qarshi davlat texnika universiteti
language: en
publication name: Digital technologies in industry
issn: 3030-3214
copyright: Public License Terms (For Open Journal Systems (OJS)) Copyright: The copyright of the published article remains with the author(s). However, after publication, the article is distributed on the OJS platform under the Creative Commons (CC BY) license. License Type: This article is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. This means users can utilize the article under the following conditions: Copy and distribute: The text of the article or its parts can be freely distributed. Quote and analyze: Parts of the article can be used for quoting and analysis. Free use: The article can be freely used for research and educational purposes. Attribution: Users must provide proper attribution and reference to the original source. Commercial use: The article can be used for commercial purposes, provided that authorship and source are properly cited. Document modification: The text or content of the article can be modified or adapted, as long as it does not harm the authorship. Liability disclaimer: The author(s) are responsible for the accuracy of the information contained in the article. The editorial team of the platform is not liable for any damages resulting from the use of this information. Public usage obligations: The content of the article must be used only in accordance with legal and ethical standards. Unauthorized use is strictly prohibited. Note: These license terms are designed to ensure transparency and openness in material usage. By accepting these terms, you agree to the adaptation and distribution of the article content under the terms of the Creative Commons license. Link: Creative Commons Attribution 4.0 International (CC BY 4.0)
items: THEORETICAL FOUNDATIONS AND PRACTICAL APPROACHES TO INDUSTRIAL WASTEWATER TREATMENT BASED ON THE COAGULATION PROCESS
items: EXPERIMENTAL ASSESSMENT OF THE SENSITIVITY OF THE SMART CHANNEL DEVICE AND THE MINIMUM WATER DISCHARGE
items: EVALUATION OF COMPOSITIONAL STRUCTURAL CHANGES IN TERPOLYMERIZATION OF A TERNARY SYSTEM BASED ON EXPERIMENTAL DATA AND KINETIC MODELING
items: THE IMPORTANCE OF AEROSPACE MAPPING METHODS IN OIL AND GAS FIELD EXPLORATION
items: GEOLOGICAL STRUCTURE AND PROSPECTS OF OIL AND GAS OUTPUT OF JURASSIC CARBONATE DEPOSITS IN THE UZUNKUDUK AREA
items: INTEGRATED GEOLOGICAL AND ECONOMIC ASSESSMENT OF GROUNDWATER RESOURCES
items: STUDY OF FACTORS INFLUENCING THE EFFECTIVENESS OF ABSORPTIONAL GAS PURIFICATION
items: DIURNAL VARIATIONS OF THE MAGNETIC FIELD AT THE YANGIBAZAR GEOPHYSICAL RESEARCH OBSERVATORY DURING PERIODS OF STRONG MAGNETIC STORMS
items: IDENTIFICATION OF OIL AND GAS BEARING AREAS OF THE MESOZOIC-CENOZOIC DEVELOPMENT OF STRUCTURES IN THE CENTRAL PART OF THE BUKHARA-KHIVA OIL AND GAS REGION
items: STUDY OF THE WEAR OF PUMP FLOW SURFACES CAUSED BY SOLID PARTICLES IN MINE WATER
items: DEVELOPMENT OF A MULTISTAGE SUCTION AIR COOLING SYSTEM FOR RECIPROCATING COMPRESSORS AND INVESTIGATION OF ITS IMPACT ON ENERGY EFFICIENCY
items: ANALYSIS OF TECHNOLOGICAL METHODS FOR IMPROVING THE COMPLETENESS OF BLASTHOLE UTILIZATION IN DRILLING AND BLASTING OPERATIONS IN UNDERGROUND MINE WORKINGS
items: STUDY OF VARIOUS COMBINED SCHEMES FOR PROCESSING GOLD-BEARING ORES OF THE KAULDY DEPOSIT
items: STUDY OF CYANIDATION PARAMETERS OF TECHNOLOGICAL SAMPLES OF GOLD-BEARING ORES FROM THE KAULDY DEPOSIT
items: MULTI-OBJECTIVE OPTIMIZATION MODEL FOR RECONSTRUCTION OF EARTHEN CANALS USING THE NSGA-II ALGORITHM
items: TOP 10 TRANSPORT TECHNOLOGIES AND INNOVATIONS IN 2025 FOR UZBEKISTAN
items: METHODS FOR ASSESSING RIVERBED STABILITY
items: INFRARED (IR) SPECTROSCOPIC ANALYSIS OF A FLAME-RETARDANT MATERIAL BASED ON PVC MODIFIED WITH STABILIZERS AND FILLERS
items: STUDY OF THE SYNTHESIS AND OPERATIONAL PROPERTIES OF OXYGEN-CONTAINING GASOLINE WITH ORGANIC ADDITIVES THAT INCREASE THE OCTANE NUMBER
items: SEM ANALYSIS OF THE MORPHOLOGICAL AND MICROSTRUCTURAL PROPERTIES OF WILD BARLEY CELLULOSE PROCESSED BY THE PLANETARY-ROLLER EXTRUSION METHOD
items: ISOLATION OF SUNFLOWER WAX AND STUDY OF ITS PHYSICOCHEMICAL PROPERTIES
items: PRODUCTION OF ORGANO-MINERAL FERTILIZERS BASED ON OFF-GRADE PHOSPHORITES AND SEWAGE SLUDGE
items: IMPROVEMENT OF AGROECOLOGICAL MONITORING MAPS USING GIS
items: METHODOLOGY FOR SPATIOTEMPORAL ANALYSIS OF GEOLOGICAL ENVIRONMENT TRANSFORMATION IN TECHNICALLY IMPACTED AREAS USING THE “CREDO ANALYSIS OF SPATIAL DATA” SOFTWARE
items: MONITORING OF SURFACE DEFORMATION CAUSED BY UNDERGROUND MINING ACTIVITIES USING THE INSAR TECHNIQUE BASED ON SENTINEL-1 IMAGERY
items: INFLUENCE OF MOLECULAR ARCHITECTURE OF SULFONATED CELLULOSE ON ITS ADSORPTION AND RHEOLOGICAL PROPERTIES IN MONTMORILLONITE DISPERSIONS
items: THE EFFECTIVENESS OF THE COMPLEXOMETRIC ANALYSIS METHOD IN MONITORING THE TECHNOLOGICAL PROCESSES OF THE KHANDIZA BENEFICIATION PLANT
items: ENHANCING THE RESISTANCE TO HYDROABRASIVE WEAR OF CENTRIFUGAL PUMP IMPELLERS BY STRENGTHENING THE SURFACE LAYER WITH FUNCTIONAL COATINGS
items: ENVIRONMENTAL IMPACT OF SPENT VANADIUM CATALYSTS AND METHODS FOR THEIR PROCESSING

THEORETICAL FOUNDATIONS AND PRACTICAL APPROACHES TO INDUSTRIAL WASTEWATER TREATMENT BASED ON THE COAGULATION PROCESS
type: item
description: This article examines the scientific foundations and advanced technological approaches to the coagulation–flocculation process widely used in the treatment of industrial wastewater. Coagulation is considered an effective physicochemical method that enables the destabilization of colloidal and finely dispersed particles, followed by their aggregation into larger flocs and subsequent sedimentation. The study provides a comparative analysis of various types of coagulants (metal-based and non-metal-based), their properties, and application efficiency based on existing scientific sources. Additionally, the main factors affecting process efficiency, including pH conditions, coagulant dosage, temperature, mixing conditions, and characteristics of colloidal systems, are systematically analyzed. Based on the physicochemical parameters of different industrial wastewaters, the applicability of the coagulation process is evaluated. The obtained results serve as a scientific basis for improving water treatment technologies, determining optimal operating conditions, and developing effective technological solutions.
subject: Ecology, Labor Protection, and Industrial Safety
  topic: section
subject: industrial wastewater
  topic: keywords
subject: coagulation
  topic: keywords
subject: flocculation
  topic: keywords
subject: coagulants
  topic: keywords
subject: water treatment technologies
  topic: keywords
subject: physicochemical methods
  topic: keywords
subject: treatment efficiency
  topic: keywords
creator: Abdulaziz A’zamovich Ikromov
creator: Ulugbek Komiljonovich Urinov
creator: Jahongir Bahromovich Fayziyev
rights: Copyright (c) 2026 Ikromov, A.A., Urinov, U.K., Fayziyev, J.B. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-29
publication date: 2026-04-29
doi: 10.70769/3030-3214.SRT.4.2.2026.4

EXPERIMENTAL ASSESSMENT OF THE SENSITIVITY OF THE SMART CHANNEL DEVICE AND THE MINIMUM WATER DISCHARGE
type: item
description: In this study, the sensitivity and minimum water discharge of the “Smart Channel” device, designed for measuring flow in open channels, were experimentally evaluated. The relevance of the research is justified by the need for rational water resource management in irrigation systems, accurate water accounting, and reliable detection of low discharges. The experiments were conducted in the “Hydraulics and Hydrometry” laboratory of “Smart Solution System” LLC, located in the Kuyichirchik district of the Tashkent region. A 60×60 sm prototype of the “Smart Channel” device was selected as the research object. The operating principle of the device is based on the velocity–area method, where discharge is determined using the average flow velocity and the cross-sectional area. The experimental results showed that for the 60×60 sm “Smart Channel” device, the average sensitivity threshold is 0.45 sm/s, while the minimum recorded discharge is 0.269 L/s. The measurement accuracy of the device was evaluated by comparison with a reference electromagnetic flow meter and the volumetric method. According to the results, the error of the “Smart Channel” device ranged from +2.47% to -2.48% relative to the reference flow meter, and from +2.43% to -2.47% relative to the volumetric method. The obtained results confirm that the “Smart Channel” device can be effectively applied for measuring low discharges and maintaining water accounting in open channels. The findings provide a scientific basis for determining the minimum measurable discharge, defining the sensitivity threshold, and improving calibration methodologies.
subject: Geology and oil-gas industry
  topic: section
subject: Smart Channel
  topic: keywords
subject: open channel
  topic: keywords
subject: water discharge
  topic: keywords
subject: minimum discharge
  topic: keywords
subject: sensitivity
  topic: keywords
subject: velocity–area method
  topic: keywords
subject: comparison
  topic: keywords
subject: electromagnetic flowmeter
  topic: keywords
subject: volumetric method
  topic: keywords
subject: measurement error
  topic: keywords
creator: Maqsud Yusufovich Otakhonov
creator: Ilhomjon Bakhtiyorugli Zokirov
creator: Alisher Abdullayevich Arifjanov
creator: Khurshid Abduxamidоvich Azizоv
rights: Copyright (c) 2026 Otаxonov, M.Y., Zokirov, I.B., Toshtemirov, Sh.A., Nazarov, U.X. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-20
publication date: 2026-04-20
doi: 10.70769/3030-3214.SRT.4.2.2026.3

EVALUATION OF COMPOSITIONAL STRUCTURAL CHANGES IN TERPOLYMERIZATION OF A TERNARY SYSTEM BASED ON EXPERIMENTAL DATA AND KINETIC MODELING
type: item
description: This study investigates the kinetics of terpolymerization and structural changes in the TDMA–styrene–maleic anhydride system based on experimental data and kinetic modeling. Increasing the initiator concentration from 16.8×10⁻⁶ to 51.3×10⁻⁶ mol·L⁻¹ led to an increase in conversion from 6.4% to 15.2% and reaction rate from 4.075×10⁻⁶ to 8.965×10⁻⁶ mol·L⁻¹·s⁻¹. It was found that increasing styrene content enhances the reaction rate from 3.11×10⁻⁶ to 11.07×10⁻⁶ mol·L⁻¹·s⁻¹. At low conversion, the composition remains close to the initial feed; however, compositional drift is observed in some systems (MA fraction increases from 0.50 to 0.70). The experimental results show good agreement with the model (±0.02–0.04).
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: terpolymerization
  topic: keywords
subject: kinetics
  topic: keywords
subject: TDMA–styrene–maleic anhydride system
  topic: keywords
subject: compositional drift
  topic: keywords
subject: reactivity ratios
  topic: keywords
subject: kinetic modeling
  topic: keywords
subject: radical polymerization
  topic: keywords
creator: Shokhrukh Bobokhonugli Mavlonov
creator: Sadriddin Fayzullayevich Fozilov
rights: Copyright (c) 2026 Mavlonov, Sh.B., Fozilov, S.F. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-14
publication date: 2026-04-14
doi: 10.70769/3030-3214.SRT.4.2.2026.2

THE IMPORTANCE OF AEROSPACE MAPPING METHODS IN OIL AND GAS FIELD EXPLORATION
type: item
description: This article presents a comprehensive and systematic analysis of the lithological composition, bedding characteristics, and facies variability of Devonian deposits widely distributed in the Quljuqtov Mountains. Particular attention is paid to the mineralogical and petrographic composition of terrigenous, carbonate, and volcanogenic rocks, as well as to their structural–matrix features and stratigraphic position. Rhythmic alternation of layers, facies zonation, and the characteristics of organogenic rock formation within the Devonian deposits are interpreted in close connection with the paleogeographic conditions of sedimentation. The obtained data indicate that during the Devonian period shallow-marine, deltaic, and reef-platform environments successively predominated in the study area. In addition, the relationship between sediment accumulation processes and tectonic activity and volcanism is substantiated on a scientific basis. The results of the study contribute to the reconstruction of the geological evolution of the Devonian complex of the Quljuqtov Mountains, the determination of its position within the stratigraphic framework, and a deeper understanding of the stages of paleogeographic development of the region. The conclusions of the research are of significant scientific importance for regional geology, stratigraphy, and paleogeography.
subject: Geology and oil-gas industry
  topic: section
subject: Devonian period
  topic: keywords
subject: Quljuqtov Mountains
  topic: keywords
subject: lithological composition
  topic: keywords
subject: stratification structure
  topic: keywords
subject: facies variability
  topic: keywords
subject: terrigenous rocks
  topic: keywords
subject: carbonate rocks
  topic: keywords
subject: reef complexes
  topic: keywords
subject: paleogeography
  topic: keywords
subject: organogenic deposits
  topic: keywords
creator: Gulbanu Parkhatkizi Berdimuratova
creator: Moxigul Mamasaliyevna Kurbanova
rights: Copyright (c) 2026 Berdimuratova, G.P., Kurbonova, M.M. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-11
publication date: 2026-04-11
doi: 10.70769/3030-3214.SRT.4.2.2026.1

GEOLOGICAL STRUCTURE AND PROSPECTS OF OIL AND GAS OUTPUT OF JURASSIC CARBONATE DEPOSITS IN THE UZUNKUDUK AREA
type: item
description: The article discusses the geological structure and petroleum potential of the Upper Jurassic carbonate deposits in the Uznkuduk area (Kashkadarya region, Uzbekistan). Based on integrated interpretation of 2D/3D seismic data and results from exploration drilling, the structural model of the field has been refined, reef structures and anomalous zones with improved reservoir properties have been identified. Locations for three exploration wells are proposed to assess the hydrocarbon potential of the identified anomalies.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: Jurassic carbonate deposits
  topic: keywords
subject: petroleum potential
  topic: keywords
subject: reef structure
  topic: keywords
subject: structural model
  topic: keywords
subject: seismic facies analysis
  topic: keywords
subject: exploration drilling
  topic: keywords
subject: reservoir properties
  topic: keywords
subject: anticlinal fold
  topic: keywords
creator: Shukurkhon Berdimurodovich Kurbanov
creator: Nazarbek Narziyevich Yuldashev
creator: Ismail Kasimjanovich Kirgizov
creator: Fazliddin Achilkhanovich Juraev
rights: Copyright (c) 2026 Qurbonov, Sh.B., Yuldashev, N.N., Kirgizov, I.Q., Jo‘rayev, F.O. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-07
publication date: 2026-04-07
starting page: 149
ending page: 152
doi: 10.70769/3030-3214.SRT.4.1.2026.43

INTEGRATED GEOLOGICAL AND ECONOMIC ASSESSMENT OF GROUNDWATER RESOURCES
type: item
description: The article analyzes the natural-geological characteristics and economic essence of groundwater based on an integrated approach. The patterns of hydrogeological formation, lithological and filtration properties of aquifers, and mechanisms of natural recharge are examined. The theoretical foundations of the economic evaluation of water resources as an economic category are considered. The necessity of integrating geological and economic factors in groundwater assessment is substantiated. The importance of hydrogeological monitoring, scientifically justified determination of exploitable reserves, and principles of sustainable use is highlighted. The research results are aimed at developing a comprehensive geological and economic assessment of groundwater resources and ensuring their rational utilization.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: groundwater
  topic: keywords
subject: hydrogeology
  topic: keywords
subject: natural resources
  topic: keywords
subject: economic assessment
  topic: keywords
subject: water resources
  topic: keywords
subject: sustainable development
  topic: keywords
creator: Tulkin Nurboboyevich Yarboboyev
creator: Jahongir Shodmonkulovich Rabbimov
creator: Baxtiyor Baxriddinugli Jamilov
rights: Copyright (c) 2026 Yarboboyev, T.N., Rabbimov, J.Sh., Jamilov, B.B. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-06
publication date: 2026-04-06
starting page: 180
ending page: 185
doi: 10.70769/3030-3214.SRT.4.1.2026.42

STUDY OF FACTORS INFLUENCING THE EFFECTIVENESS OF ABSORPTIONAL GAS PURIFICATION
type: item
description: It was studied that the increase in the process of absorption purification of natural gas from acidic components is closely related to hydrodynamic, geometric, and physicochemical factors, as well as the location, configuration, and direction of the colliding axes of the nozzles within the column. Based on such problems, studies were conducted on geometric factors, physicochemical factors related to the fact that the influence of certain factors creates serious difficulties in experimental studies, the influence of phase density and viscosity, and collision movement processes in turbulent flows.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: hydrodynamic
  topic: keywords
subject: geometric
  topic: keywords
subject: physicochemical
  topic: keywords
subject: concentration
  topic: keywords
subject: viscosity
  topic: keywords
subject: plates
  topic: keywords
subject: turbulent regime
  topic: keywords
subject: diffusion coefficient
  topic: keywords
subject: influence of vibration and pulsation
  topic: keywords
subject: sound vibrations
  topic: keywords
subject: surface resistance
  topic: keywords
creator: Eldor Nurmamatovich Dustkobilov
rights: Copyright (c) 2026 Dustqobilov, E.N. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-06
publication date: 2026-04-06
starting page: 176
ending page: 179
doi: 10.70769/3030-3214.SRT.4.1.2026.41

THE IMPORTANCE OF AEROSPACE MAPPING METHODS IN OIL AND GAS FIELD EXPLORATION
type: item
description: In this article, methods for absorbing natural gases from acidic components are used, while the efficiency of flow direction in nozzle absorbers largely depends on the shape of the nozzle used. For this purpose, various methods for activating mass transfer in devices with contact nozzles have been proposed. It has been established that the modern theory of the elementary mass transfer act allows for the theoretical determination of the mass transfer coefficient for a limited range of hydrodynamic regimes and interphase surface shapes, which differ significantly from the operating conditions of industrial nozzle columns.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: absorption
  topic: keywords
subject: contact nozzle
  topic: keywords
subject: emulsification
  topic: keywords
subject: hydrodynamic regime
  topic: keywords
subject: concentration
  topic: keywords
subject: sprayer
  topic: keywords
subject: gas-liquid emulsion
  topic: keywords
creator: Eldor Nurmamatovich Dustqobilov
creator: Tashmurza Rakhmonovich Yuldashev
rights: Copyright (c) 2026 Dustqobilov, E.N., Yuldashev, T.R. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-06
publication date: 2026-04-06
starting page: 166
ending page: 170
doi: 10.70769/3030-3214.SRT.4.1.2026.40

DIURNAL VARIATIONS OF THE MAGNETIC FIELD AT THE YANGIBAZAR GEOPHYSICAL RESEARCH OBSERVATORY DURING PERIODS OF STRONG MAGNETIC STORMS
type: item
description: This paper analyzes the mean daily variations of the Earth’s magnetic field recorded at the Yangibazar Geophysical Research Observatory during periods of strong magnetic storms (Kp ≥ 7, Dst ≤ −100 nT). The study examines the diurnal dynamics, amplitude variations, and phase shifts of the main magnetic field components—H, D, and Z. The obtained results show that during strong magnetic storms, daily magnetic variations significantly increase compared to background levels and undergo notable structural changes. The findings are of great importance for the assessment and possible forecasting of earthquakes, as well as for improving regional geophysical monitoring systems.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: strong magnetic storms
  topic: keywords
subject: Earth’s magnetic field
  topic: keywords
subject: Yangibazar Observatory
  topic: keywords
subject: daily variations
  topic: keywords
subject: geomagnetic activity
  topic: keywords
creator: Saidigani Egamberdiyev
creator: Ahror Khusomiddinov
creator: Farrukh Ruzimboev
creator: Elyor Jurayev
rights: Copyright (c) 2026 Egamberdiyev, S., Husomiddinov, A., Ruzimboev, F., Jo‘rayev, E. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-05
publication date: 2026-04-05
starting page: 159
ending page: 165
doi: 10.70769/3030-3214.SRT.4.1.2026.39

IDENTIFICATION OF OIL AND GAS BEARING AREAS OF THE MESOZOIC-CENOZOIC DEVELOPMENT OF STRUCTURES IN THE CENTRAL PART OF THE BUKHARA-KHIVA OIL AND GAS REGION
type: item
description: The article presents the results of the analysis of the age and spatial relationships of local structures of the third rank formed at various stages of the Mesozoic-Cenozoic history, the relationship between the spatial distribution of known hydrocarbon deposits and local structures of the third rank at various stages of the region's development, the results of the allocation of oil and gas-bearing areas taking into account the paleotectonic features of the Mesozoic-Cenozoic development of the region's structures. The article also presents a distribution of fields based on a third-rank structural plan, represented by local anticline structures—potential hydrocarbon traps in two aspects. Overall, based on paleotectonic data, oil and gas accumulation zones are identified, in which hydrocarbon fields are clustered in areas differing in age and inheritance, as well as reorganization and the emergence of new elements.
subject: Geology and oil-gas industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: Mesozoic-Cenozoic
  topic: keywords
subject: deformation
  topic: keywords
subject: Paleogene
  topic: keywords
subject: Neogene-Quaternary
  topic: keywords
subject: oil and gas accumulation
  topic: keywords
subject: Bukhara stage
  topic: keywords
subject: gas condensate
  topic: keywords
subject: geological section
  topic: keywords
subject: horizons
  topic: keywords
subject: Chardzhou stage
  topic: keywords
creator: Kholkhoja Rakhmatullayevich Akhmedov
rights: Copyright (c) 2026 Axmedov, X.R. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-04
publication date: 2026-04-04
starting page: 141
ending page: 148
doi: 10.70769/3030-3214.SRT.4.1.2026.38

STUDY OF THE WEAR OF PUMP FLOW SURFACES CAUSED BY SOLID PARTICLES IN MINE WATER
type: item
description: In this study, the process of hydro abrasive wear of pump flow surfaces was analyzed based on theoretical and experimental approaches. Pumps are widely used in ore mining operations to lift mine water containing solid mechanical impurities of various sizes to the surface. This leads to intensive wear of the main flow components such as impellers, guide vanes, and sealing rings. The reliability and energy efficiency of pump units largely depend on this wear process, making its in-depth study an актуal scientific problem.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: mine water
  topic: keywords
subject: hydro-abrasive wear
  topic: keywords
subject: pump
  topic: keywords
subject: impeller
  topic: keywords
subject: solid particles
  topic: keywords
subject: flow surfaces
  topic: keywords
subject: guide vanes
  topic: keywords
creator: Dilshoda Narmuratovna Khatamova
creator: Mohinur Abduxakimkizi Yuldasheva
rights: Copyright (c) 2026 Xatamova, D.N., Yuldasheva, M.A. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-03
publication date: 2026-04-03
starting page: 110
ending page: 113
doi: 10.70769/3030-3214.SRT.4.1.2026.37

DEVELOPMENT OF A MULTISTAGE SUCTION AIR COOLING SYSTEM FOR RECIPROCATING COMPRESSORS AND INVESTIGATION OF ITS IMPACT ON ENERGY EFFICIENCY
type: item
description: The energy efficiency of reciprocating compressors largely depends on the initial thermodynamic state of the air entering the compressor, particularly its temperature. A high temperature of the suction air leads to a decrease in gas density, which increases the work required during the compression process and consequently results in higher electrical energy consumption. The aim of this study is to develop a multi-stage suction air cooling system for reciprocating compressors and to evaluate its effect on thermodynamic and aerodynamic characteristics using computational fluid dynamics methods. In the proposed technical solution, the suction air is cooled before entering the compressor through a series of sequentially arranged multi-stage tubular heat exchangers. The research was carried out using SolidWorks Flow Simulation software, where temperature and pressure fields were modeled. The simulation results showed that the temperature of the suction air decreases from 40 °C to 7–8 °C. This increases air density, reduces the work required for compression, and improves the energy efficiency of the compressor. At the same time, the pressure loss in the device ranges between 14–26 Pa, which indicates minimal hydraulic resistance. The obtained results confirm that the proposed multi-stage cooling system increases the volumetric efficiency of the compressor, reduces electrical energy consumption, and improves overall energy efficiency. The proposed technical solution can be applied in Reciprocating compressor, suction air, multi-stage cooling, heat exchanger, computational fluid dynamics, energy efficiency, volumetric efficiency, pressure loss.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: Reciprocating compressor
  topic: keywords
subject: suction air
  topic: keywords
subject: multi-stage cooling
  topic: keywords
subject: heat exchanger
  topic: keywords
subject: energy efficiency
  topic: keywords
subject: pressure loss
  topic: keywords
creator: Elmurod Umaraliyevich Yuldashev
creator: Shakhzod Numonugli Jurayev
rights: Copyright (c) 2026 Yuldashev, E.U., Jo‘rayev, Sh.N. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-03
publication date: 2026-04-03
starting page: 104
ending page: 109
doi: 10.70769/3030-3214.SRT.4.1.2026.36

ANALYSIS OF TECHNOLOGICAL METHODS FOR IMPROVING THE COMPLETENESS OF BLASTHOLE UTILIZATION IN DRILLING AND BLASTING OPERATIONS IN UNDERGROUND MINE WORKINGS
type: item
description: The paper addresses modern technological approaches aimed at improving blasthole utilization and preventing the formation of unbroken bottom zones (“cups”) during drilling and blasting operations in underground mine workings. The physical mechanisms responsible for cup formation, including non-uniform explosive energy distribution, lack of free surfaces, and specific features of detonation wave interaction with the rock mass, are analyzed. Scientifically substantiated methods such as reverse initiation of blasthole charges, intentional overdrilling, application of air gaps, combined stemming, and preliminary physico-chemical weakening of the rock mass using surfactants are considered. It is shown that the integrated application of these methods makes it possible to increase the blasthole utilization coefficient to 0.90–0.95, reduce the specific explosive consumption, and improve face quality while simultaneously decreasing seismic and environmental impacts.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: drilling and blasting operations
  topic: keywords
subject: blasthole charges
  topic: keywords
subject: blasthole utilization coefficient
  topic: keywords
subject: bootlegs
  topic: keywords
subject: reverse initiation
  topic: keywords
subject: air gaps
  topic: keywords
subject: combined stemming
  topic: keywords
subject: underground mine workings
  topic: keywords
creator: Sherzod Sharipovich Zairov
creator: Gafur Subxonovich Nutfulloyev
creator: Bakhrom Abdaalievich Gaibnazarov
creator: Navrozbek Abdujabborovich Ismatillayev
rights: Copyright (c) 2026 Zairov, Sh.Sh., Nutfulloyev, G‘.S., G‘oyibnazarov, B.A., Ismatillayev, N.A. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-02
publication date: 2026-04-02
starting page: 96
ending page: 103
doi: 10.70769/3030-3214.SRT.4.1.2026.35

STUDY OF VARIOUS COMBINED SCHEMES FOR PROCESSING GOLD-BEARING ORES OF THE KAULDY DEPOSIT
type: item
description: This article analyzes technological solutions for maximizing the efficient extraction of valuable components from ore based on a study of the beneficiability of gold-bearing ores at the Kauldy deposit using various methods, including gravity and flotation concentration, as well as a combination of these methods. This involves smelting and cyanidation of concentrates at a copper smelter, while the waste is processed by cyanidation. However, it is necessary to consider the challenges of filtering the cyanide residue due to the high clay mineral content of the ore. Based on the results of laboratory studies, a flotation-cyanide circuit is recommended for the Kauldy deposit. This circuit includes grinding the ore to 90% -0.074 mm, two stages of rougher and scavenger flotation, cleaning flotation of the froth product, and cyanidation of the flotation tailings.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: Gold
  topic: keywords
subject: silver
  topic: keywords
subject: gravity
  topic: keywords
subject: flotation
  topic: keywords
subject: enrichment
  topic: keywords
subject: concentrate
  topic: keywords
subject: extraction
  topic: keywords
subject: combined scheme
  topic: keywords
creator: Alisher Samadov
creator: Ibrokhim Nurmukhammedov
creator: Bakhrom Khamidullaev
creator: Ergash Jabborov
rights: Copyright (c) 2026 Samadov, A.U., Nurmuhammedov, I.S., Xamidullayev, B.N., Hakimov, A.X. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-01
publication date: 2026-04-01
starting page: 85
ending page: 89
doi: 10.70769/3030-3214.SRT.4.1.2026.34

STUDY OF CYANIDATION PARAMETERS OF TECHNOLOGICAL SAMPLES OF GOLD-BEARING ORES FROM THE KAULDY DEPOSIT
type: item
description: This article presents the results of experimental studies on the chemical and rational analyses of the material composition of gold-bearing ores from the Kauldy deposit, as well as on the cyanidation of initial technological samples. According to the chemical analysis of the average ore sample, the average gold content was 3.08 с/u and the silver content was 2.438 c/u. In the ore sample, the proportion of free, cyanide-leachable gold was 90%, and that of silver was 91.36%; gold associated with Sb and As minerals and compounds accounted for 2.9%, silver for 1.23%; gold associated with iron and manganese carbonates and hydroxides accounted for 0.32%, silver for 0.82%; gold associated with sulfides (pyrite, arsenopyrite) accounted for 6.45%, silver for 2.47%; gold occurring as fine inclusions within quartz, aluminosilicates, and other acid-insoluble minerals accounted for 0.32%, while silver accounted for 4.16%. Tests were carried out on the direct cyanidation of the initial ore and beneficiation products. The Jinchan reagent (PRC) was used as a leaching agent as an alternative to sodium cyanide. Based on the experimental results, the optimal conditions for gold dissolution were determined. When the ore was ground to a particle size of −0.044 mm, with a sodium cyanide concentration of 0.07% (1.4 kg/t) and a leaching duration of 36 h, gold extraction into solution reached 90%, while silver extraction reached 88.36%. Experiments using the Jinchan reagent demonstrated that results comparable to those obtained using sodium cyanide can be achieved. When the ore was ground to −0.044 mm, with Jinchan reagent concentration of 0.3% (6 kg/t) and a leaching duration of 24 h under selective leaching conditions, gold extraction into solution reached 91.55% and silver extraction reached 91.72%.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: gold
  topic: keywords
subject: cyanidation
  topic: keywords
subject: Kauldy deposit
  topic: keywords
subject: rational analysis
  topic: keywords
subject: chemical analysis
  topic: keywords
subject: extraction into solution
  topic: keywords
subject: grinding
  topic: keywords
subject: sodium cyanide
  topic: keywords
subject: Jinchan
  topic: keywords
creator: Alisher Samadov
creator: Ibrokhim Nurmukhammedov
creator: Azamjon Khaidarov
creator: Ergash Jabbarov
rights: Copyright (c) 2026 Samadov, A.U., Nurmuhammedov, I.S., Xaydarov, A.A., Jabborov, E.Y. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-01
publication date: 2026-04-01
starting page: 80
ending page: 84
doi: 10.70769/3030-3214.SRT.4.1.2026.33

MULTI-OBJECTIVE OPTIMIZATION MODEL FOR RECONSTRUCTION OF EARTHEN CANALS USING THE NSGA-II ALGORITHM
type: item
description: This article describes a multi-objective optimization model developed to determine the reconstruction parameters of earthen irrigation canals. The model incorporates hydraulic flow calculations using the Chezy–Manning equation, sediment transport calculations using the Engelund–Hansen sediment transport capacity formula, and filtration calculations using Pavlovskiy’s filtration formula. The model also calculates reconstruction and operation costs for combinations generated using the NSGA-II algorithm, based on current price levels. By applying the NSGA-II algorithm in the Python environment, the model generates parameter combinations and selects the most optimal parameters based on results that provide the minimum total cost. The model was tested in a case study of the Amu-Bukhara Machine Canal. The results made it possible to determine the optimal balance between reconstruction and operation costs.
subject: Ecology, Labor Protection, and Industrial Safety
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: reconstruction of earthen canals
  topic: keywords
subject: multi-objective optimization
  topic: keywords
subject: NSGA-II algorithm
  topic: keywords
subject: sediment transport capacity of flow
  topic: keywords
subject: flow variability
  topic: keywords
subject: reconstruction and operational costs
  topic: keywords
creator: Alisher Normurodovich Khazratov
creator: Feruz Khorievich Sobirov
rights: Copyright (c) 2026 Xazratov, A.N., Sobirov, F.Ch. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-04-01
publication date: 2026-04-01
starting page: 246
ending page: 252
doi: 10.70769/3030-3214.SRT.4.1.2026.32

TOP 10 TRANSPORT TECHNOLOGIES AND INNOVATIONS IN 2025 FOR UZBEKISTAN
type: item
description: The article provides an overview of the ten most significant transport technologies that will determine global trends in 2025 and are of practical value for the development of Uzbekistan. It analyses the prospects for introducing innovations, taking into account national characteristics, with a focus on expanding the fleet of electric vehicles and the use of gas motor fuel. It considers issues related to the digitalisation of public transport and the creation of intelligent urban traffic management systems. The material contains practical recommendations for modernising the republic's transport infrastructure, aimed at improving energy efficiency, digitising public transport, environmental safety, introducing intelligent traffic management systems, and optimising logistics processes in the current economic conditions.
subject: Ecology, Labor Protection, and Industrial Safety
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: transport innovations
  topic: keywords
subject: electric vehicles
  topic: keywords
subject: smart roads
  topic: keywords
subject: digitalisation
  topic: keywords
subject: transport modernisation
  topic: keywords
subject: sustainable transport
  topic: keywords
subject: localisation of production
  topic: keywords
subject: prospects for the automotive industry in Uzbekistan
  topic: keywords
creator: Mukaddas Ibadullaevna Mamasalieva
rights: Copyright (c) 2026 Mamasaliyeva, M.I. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-31
publication date: 2026-03-31
starting page: 242
ending page: 245
doi: 10.70769/3030-3214.SRT.4.1.2026.31

METHODS FOR ASSESSING RIVERBED STABILITY
type: item
description: To date, extensive field observations and laboratory experiments on the formation and movement of bedforms in channels with alluvial beds have been conducted in various scientific centers worldwide. These studies have yielded a large volume of experimental data. Although some researchers have attempted to generalize these data and present them as unified computational relationships, fully reliable and universal results on this issue have not yet been obtained. Analysis of the existing scientific literature shows that the problem of bedform movement in channels with alluvial beds remains one of the most complex and relevant challenges in open channel hydraulics. The results of analyzing the obtained experimental data and observations indicate that changes in wave parameters directly affect the geometric and kinematic characteristics of the bedforms. In particular, it has been observed that bedforms formed under the influence of wind waves have larger dimensions compared to those formed in steady-state channel flow. This is primarily attributed to the increase in shear stresses occurring at the channel bottom as a result of wave action. The increase in these stresses leads to the enlargement of bedform parameters. Based on the theory of bedform sediment transport in open channels, methods for calculating sediment transport in channels under steady and unsteady flow conditions have been improved. This approach allows for a more accurate description of the complex morphodynamic processes occurring at the channel bottom and enhances the reliability of the calculated results.
subject: Ecology, Labor Protection, and Industrial Safety
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: unsteady flow
  topic: keywords
subject: bedforms
  topic: keywords
subject: bedform steepness
  topic: keywords
subject: sediments
  topic: keywords
subject: sediment transport
  topic: keywords
subject: deformation
  topic: keywords
subject: riverbed
  topic: keywords
subject: roughness
  topic: keywords
subject: hydraulic resistance
  topic: keywords
subject: dynamic velocity
  topic: keywords
subject: shear velocity
  topic: keywords
subject: wind waves
  topic: keywords
subject: entrainment force
  topic: keywords
creator: Israil Kholikovich Gaimnazarov
creator: Sobir Rakhmonkulovich Mamarasulov
creator: Jomurod Jahongirugli Toshmurodov
rights: Copyright (c) 2026 G‘ayimnazarov, I.X., Mamarasulov, S.R., Toshmurodov, J.J. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-30
publication date: 2026-03-30
starting page: 237
ending page: 241
doi: 10.70769/3030-3214.SRT.4.1.2026.30

INFRARED (IR) SPECTROSCOPIC ANALYSIS OF A FLAME-RETARDANT MATERIAL BASED ON PVC MODIFIED WITH STABILIZERS AND FILLERS
type: item
description: This study investigates the physicochemical properties of a flame-retardant material based on polyvinyl chloride (PVC) modified with stabilizers and fillers. Composite materials consisting of PVC, dioctyl phthalate (DOF), melamine cyanurate (MCA), and talc were prepared and analyzed using infrared (IR) spectroscopy. The spectral analysis confirmed the presence of key functional groups such as C–H, C–Cl, C=O, N–H, and Si–O, indicating the successful incorporation of additives into the material structure. The results demonstrate that the modified PVC composites exhibit enhanced flame retardancy, reduced smoke emission, and improved mechanical properties.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: polyvinyl chloride
  topic: keywords
subject: DOF
  topic: keywords
subject: melamine cyanurate
  topic: keywords
subject: talc
  topic: keywords
subject: flame retardancy
  topic: keywords
subject: IR spectroscopy
  topic: keywords
subject: composite material
  topic: keywords
subject: stabilizer
  topic: keywords
subject: filler
  topic: keywords
creator: Durbek Abdirashidovich Abdirashidov
rights: Copyright (c) 2026 Abdirashidov, D.A. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-29
publication date: 2026-03-29
starting page: 231
ending page: 236
doi: 10.70769/3030-3214.SRT.4.1.2026.29

STUDY OF THE SYNTHESIS AND OPERATIONAL PROPERTIES OF OXYGEN-CONTAINING GASOLINE WITH ORGANIC ADDITIVES THAT INCREASE THE OCTANE NUMBER
type: item
description: In this study, organic additives that increase the octane number of oxygen-containing gasoline were synthesized using local raw materials such as isoamyl alcohol, phthalic anhydride, glycerin, and acetic acid. The optimal conditions for the synthesis process were determined. The structure of the synthesized compounds was confirmed using IR, PMR, and NMR spectroscopy methods. The effect of diisoamyl phthalate (DIAP) and triacetin (TA) additives on AI-80 gasoline showed a significant increase in octane number. The addition of 10% DIAP increased the octane number by 7.5 units, while 5% TA increased it by 4.3 units. The results demonstrate the feasibility of producing efficient and environmentally friendly oxygenated additives based on local raw materials.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: isoamyl alcohol
  topic: keywords
subject: phthalic anhydride
  topic: keywords
subject: triacetin
  topic: keywords
subject: diisoamyl phthalate
  topic: keywords
subject: octane number
  topic: keywords
subject: oxygenates
  topic: keywords
subject: catalyst
  topic: keywords
subject: fuel additives
  topic: keywords
subject: NMR
  topic: keywords
subject: IR spectroscopy
  topic: keywords
creator: Berdiyev, S.A. Berdiyev
creator: Sarvar Mustafougli Jovliev
creator: Ilkhomjon Ibrokhimjonugli Turgunov
creator: Fayzulla Nurmuminovich Nurkulov
rights: Copyright (c) 2026 Berdiyev, S.A., Jovliyev, S.M., Turgʻunov, I.I., Nurqulov, F.N. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-28
publication date: 2026-03-28
starting page: 220
ending page: 225
doi: 10.70769/3030-3214.SRT.4.1.2026.28

SEM ANALYSIS OF THE MORPHOLOGICAL AND MICROSTRUCTURAL PROPERTIES OF WILD BARLEY CELLULOSE PROCESSED BY THE PLANETARY-ROLLER EXTRUSION METHOD
type: item
description: This article investigates the process of extracting cellulose from the stem of a non-traditional raw material source - wild barley (Hordeum murinum) - and examines the properties of the resulting product. The structural and morphological properties of the extracted cellulose were studied using Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). A unique aspect of this research is the comparative analysis of the physicochemical indicators of the obtained sample against those of traditional cotton and flax celluloses. Analysis of the FTIR spectra confirmed the similarity of functional groups among the samples, while SEM images revealed the distinct fiber structure and micromorphology of wild barley cellulose. The results indicate that the quality indicators of wild barley cellulose are comparable to those of traditional raw materials, demonstrating its potential for use as an effective filler in polymer composites.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: Wild barley
  topic: keywords
subject: cotton cellulose
  topic: keywords
subject: flax cellulose
  topic: keywords
subject: comparative analysis
  topic: keywords
subject: FTIR spectroscopy
  topic: keywords
subject: SEM analysis
  topic: keywords
subject: morphology
  topic: keywords
subject: polymer composites
  topic: keywords
creator: Nurali Khalikulovich Karshiev
creator: Arslonnazar Shernazarovich Khusenov
creator: Furkat Bazarovich Eshkurbanov
creator: Raykhon Ilkhomkizi Abdullaeva
rights: Copyright (c) 2026 Qarshiyev, N.X., Khusenov, A.Sh., Eshqurbonov, F.B., Abdullayeva, R.I. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-27
publication date: 2026-03-27
starting page: 208
ending page: 213
doi: 10.70769/3030-3214.SRT.4.1.2026.26

ISOLATION OF SUNFLOWER WAX AND STUDY OF ITS PHYSICOCHEMICAL PROPERTIES
type: item
description: This article presents the results of the isolation of sunflower wax and the study of its physicochemical properties, which provides general information about sunflower wax, their chemical composition, methods of extracting waxes from seeds and oil, as well as the influence of the concentration of the table salt solution and the precipitation temperature on the separation of the waxy substance from a mixture of waxy substance and pearlite. At the same time, detailed information is provided on the extraction of waxy substances from pearlite, the influence of the duration of pearlite precipitation on the yield of the waxy substance, the physicochemical indicators of the waxy substances extracted from the used pearlite, and the freezing method was used to extract waxy substances from sunflower oil.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: oilseeds
  topic: keywords
subject: sunflower
  topic: keywords
subject: wax
  topic: keywords
subject: waxy substance
  topic: keywords
subject: physicochemical indicators
  topic: keywords
subject: perlite and its mixture
  topic: keywords
subject: cosmetics and pharmaceuticals
  topic: keywords
creator: Zilola Sheralikizi Umirova
creator: Azimjon Normominovich Akhmedov
creator: Zulfiyahon Azizovna Hakimova
creator: Akbarali Tursunboyevich Ruzibayev
rights: Copyright (c) 2026 Umirova, Z.Sh., Axmedov, A.N., Xakimova, Z.A., Ruzibayev, A.T. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-27
publication date: 2026-03-27
starting page: 214
ending page: 219
doi: 10.70769/3030-3214.SRT.4.1.2026.27

PRODUCTION OF ORGANO-MINERAL FERTILIZERS BASED ON OFF-GRADE PHOSPHORITES AND SEWAGE SLUDGE
type: item
description: This study investigates the feasibility of producing organo-mineral fertilizers based on off-grade phosphorite mineralized mass and sewage sludge generated at biochemical municipal wastewater treatment facilities. Phosphorite–sludge mixtures were prepared at mass ratios ranging from 90:10 to 30:70 and chemically treated with 30% sulfuric acid at 50–90% of the stoichiometric requirement relative to calcium oxide. The resulting slurries were separated into liquid and solid phases, and the contents of total P₂O₅, organic matter, humic acids, and fulvic acids were determined. The results showed that increasing the phosphorite fraction led to higher phosphorus levels, whereas increasing the sludge fraction caused a pronounced rise in organic matter, particularly fulvic acids in the liquid phase. A higher sulfuric acid dosage enhanced phosphorus transfer to the liquid phase and promoted the formation of stable complexes with organic components. The study provides scientific justification for producing a fast-acting liquid fertilizer enriched with fulvic acids, as well as a slow-release solid organo-mineral fertilizer dominated by humic acids.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: phosphorite
  topic: keywords
subject: sewage sludge
  topic: keywords
subject: organo-mineral fertilizers
  topic: keywords
subject: sulfuric acid
  topic: keywords
subject: humic acids
  topic: keywords
subject: fulvic acids
  topic: keywords
creator: Umida Khusankizi Mukhammatova
creator: Uktam Shavkatovich Temirov
creator: Sanat Shuhratugli Sharipov
creator: Nargiza Bakhiddinovna Takhirova
rights: Copyright (c) 2026 Muxammatova, U.X., Temirov, O‘.Sh., Sharipov, S.Sh., Taxirova, N.B. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-25
publication date: 2026-03-25
starting page: 197
ending page: 202
doi: 10.70769/3030-3214.SRT.4.1.2026.25

IMPROVEMENT OF AGROECOLOGICAL MONITORING MAPS USING GIS
type: item
description: This article provides a comprehensive analysis of improving agroecological monitoring maps using Geographic Information Systems (GIS). Particular attention is paid to the development of digital cadastral maps for assessing the ecological condition of land plots, as well as their accuracy, completeness, and topological consistency. The methodological foundations of digital cartography, the capabilities of GIS technologies, and digitization processes are discussed. The study also highlights the important role of metadata, spatial data quality, and data management in enhancing the effectiveness of agroecological monitoring. The obtained results can be applied to rational land use, strengthening environmental control, and the development of modern digital cartographic products.
subject: Chemical Technology and Construction
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: GIS
  topic: keywords
subject: agroecological monitoring
  topic: keywords
subject: cadastral maps
  topic: keywords
subject: digital cartography
  topic: keywords
subject: land plots
  topic: keywords
subject: topology
  topic: keywords
subject: metadata
  topic: keywords
creator: Yigitali Togayevich Zukhurov
creator: Muzaffar Mukhammadiyevich Aralov
creator: Rohat Mannonkizi Jaborova
creator: Makhfirat Normuratovna Umarova
rights: Copyright (c) 2026 Zuxurov, Y.T., Aralov, M.M., Jabborova, R.M., Umarova, M.N. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-24
publication date: 2026-03-24
starting page: 203
ending page: 207
doi: 10.70769/3030-3214.SRT.4.1.2026.24

METHODOLOGY FOR SPATIOTEMPORAL ANALYSIS OF GEOLOGICAL ENVIRONMENT TRANSFORMATION IN TECHNICALLY IMPACTED AREAS USING THE “CREDO ANALYSIS OF SPATIAL DATA” SOFTWARE
type: item
description: The article presents an approach for assessing the state of the geological environment in open-pit mining areas based on the transition from discrete geodetic monitoring to continuous mathematical modeling using the CREDO Spatial Data Analysis software. The principles of digital terrain modeling, deformation analysis, slope stability assessment, and volume calculation of displaced rock masses are described. The scientific novelty lies in integrating triangulation, GRID interpolation, web visualization, and solar exposure analysis to create digital models of technogenically disturbed areas and to improve geomechanical hazard prediction.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: CREDO APD
  topic: keywords
subject: monitoring
  topic: keywords
subject: technogenic load
  topic: keywords
subject: open-pit mining
  topic: keywords
subject: digital elevation model
  topic: keywords
subject: interpolation
  topic: keywords
subject: spatial analysis
  topic: keywords
creator: Aleksandr Illarionovich Pavlovskiy
creator: Andrey Andreevich Kologrivko
creator: Yevgeniya Yuryevna Naryjnova
creator: Yegor Viktorovich Bildyuk
rights: Copyright (c) 2026 Pavlovskiy, A.I., Kologrivko, A.A., Naryjnova, Y.Y., Bildyuk, Y.V. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-23
publication date: 2026-03-23
starting page: 75
ending page: 79
doi: 10.70769/3030-3214.SRT.4.1.2026.23

MONITORING OF SURFACE DEFORMATION CAUSED BY UNDERGROUND MINING ACTIVITIES USING THE INSAR TECHNIQUE BASED ON SENTINEL-1 IMAGERY
type: item
description: At the Khandiza polymetallic deposit located in the Sariosiyo district of Surkhandarya region, underground mining activities may lead to deformation of the earth’s surface. The geological complexity of the rock mass and the intensity of mining operations cause uneven spatial and temporal development of subsidence processes. In this study, InSAR technology based on Sentinel-1 satellite radar imagery with revisit periods of 7 and 18 days was applied. To minimize the effect of temporal decorrelation and enhance the detectable deformation gradient, SBAS (Small Baseline Subsets) and IPTA (Interferometric Point Target Analysis) algorithms were integrated. As a result of data processing, a spatially continuous deformation model of the deposit area was generated, and subsidence rates of up to several tens of centimeters per year were identified in actively mined zones. The analysis showed that the intensity and spatial distribution of deformations are closely related to mining depth, ore body thickness, and the system of tectonic faults.The monitoring results are of significant importance for assessing the stability of mining infrastructure, protecting surface structures, and ensuring industrial safety. The obtained data provide a scientific basis for remote monitoring of geodynamic processes and for improving environmental management at the Khandiza deposit.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 04.00.00 - Geology and Mineralogy Sciences
  topic: category
subject: InSAR
  topic: keywords
subject: land subsidence
  topic: keywords
subject: underground mining
  topic: keywords
subject: Sentinel-1
  topic: keywords
subject: IPTA
  topic: keywords
subject: SBAS
  topic: keywords
subject: interferometry
  topic: keywords
subject: deformation
  topic: keywords
subject: monitoring
  topic: keywords
subject: Surkhandarya region
  topic: keywords
subject: Khandiza deposit
  topic: keywords
subject: satellite data
  topic: keywords
creator: Shoxbos Soibovich Botirov
creator: Rustam Uralovich Nomdorov
creator: Boboyor Azamatugli Abdisamatov
rights: Copyright (c) 2026 Botirov, Sh.S., Nomdorov, R.U., Abdisamatov, B.A. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-19
publication date: 2026-03-19
starting page: 69
ending page: 74
doi: 10.70769/3030-3214.SRT.4.1.2026.22

INFLUENCE OF MOLECULAR ARCHITECTURE OF SULFONATED CELLULOSE ON ITS ADSORPTION AND RHEOLOGICAL PROPERTIES IN MONTMORILLONITE DISPERSIONS
type: item
description: This study investigates the influence of the molecular architecture of sulfonated cellulose (linear and branched structures) on its adsorption behavior and rheological properties in montmorillonite dispersions. A series of polymers with similar degrees of sulfonation but different macromolecular architectures were obtained through controlled synthesis. Molecular characteristics of the polymers were determined using gel permeation chromatography coupled with multi-angle light scattering, allowing evaluation of branching parameters. Adsorption studies revealed that linear polymers form denser adsorption layers on the montmorillonite surface, while branched polymers produce thicker adsorption layers with greater effective thickness. Rheological analysis demonstrated significant differences in the mechanism of action: linear sulfonated cellulose acts as an effective deflocculant, reducing the viscosity of the suspension, whereas branched structures induce the formation of an elastic three-dimensional network and significantly increase the storage modulus of the system. The results confirm that macromolecular architecture is a key factor enabling targeted control of the rheological behavior of dispersed systems.
subject: Chemical Technology and Construction
  topic: section
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: sulfonated cellulose
  topic: keywords
subject: molecular architecture
  topic: keywords
subject: branching degree
  topic: keywords
subject: adsorption
  topic: keywords
subject: montmorillonite
  topic: keywords
subject: rheology
  topic: keywords
subject: dispersed systems
  topic: keywords
subject: storage modulus
  topic: keywords
subject: deflocculation
  topic: keywords
creator: Suvonkul Erkhonovich Nurmonov
creator: Umidakhan Xamidjonkizi Asranova
rights: Copyright (c) 2026 Nurmonov, S.E., Asranova, U.X. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-17
publication date: 2026-03-17
starting page: 226
ending page: 230
doi: 10.70769/3030-3214.SRT.4.1.2026.18

THE EFFECTIVENESS OF THE COMPLEXOMETRIC ANALYSIS METHOD IN MONITORING THE TECHNOLOGICAL PROCESSES OF THE KHANDIZA BENEFICIATION PLANT
type: item
description: In this article, the effectiveness of applying the method of complexometric analysis in managing the technological processes of the Khandiza Processing Plant was studied. As an object of research, a chemical-analytical method for determining the mass fraction of zinc (Zn) and lead (Pb) in samples obtained during the grinding and hydrocyclonization stages was developed. The work scientifically substantiated the high selectivity of complexometric titration, its efficiency as an express analysis, and its economic feasibility in production conditions. The research results show that the improvement of this method using modern reagents and masking agents allows for continuous monitoring of the technological process and optimization of enrichment indicators.
subject: Chemical Technology and Construction
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: 02.00.00 - Chemical Sciences
  topic: category
subject: Complexometry
  topic: keywords
subject: Khandiza Processing Plant
  topic: keywords
subject: polymetallic ores
  topic: keywords
subject: zinc and lead
  topic: keywords
subject: express analysis
  topic: keywords
subject: technological control
  topic: keywords
subject: flotation
  topic: keywords
creator: Begzod Abdikhamidovich Rakhmanov
creator: Furkat Bozorovich Eshkurbonov
creator: Asal Abduolimkizi Ashurova
creator: Raykhona Ilkhomkizi Abdullayeva
rights: Copyright (c) 2026 Raxmanov, B.A., Eshqurbonov, F.B., Ashurova, A.A., Abdullayeva, R.I. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-17
publication date: 2026-03-17
starting page: 192
ending page: 196
doi: 10.70769/3030-3214.SRT.4.1.2026.21

ENHANCING THE RESISTANCE TO HYDROABRASIVE WEAR OF CENTRIFUGAL PUMP IMPELLERS BY STRENGTHENING THE SURFACE LAYER WITH FUNCTIONAL COATINGS
type: item
description: The article analyzes issues related to improving the operational reliability of centrifugal pumps widely used in the mining industry. It has been established that the primary causes of failures in pumping equipment operating in hydrotransport systems are hydroabrasive wear of impellers, casings, and covers. Based on statistical and experimental data obtained from pump stations of mining enterprises in Uzbekistan, the service life and failure causes of centrifugal pump components were investigated. The research results indicate that up to 70–75% of failures are associated with intensive wear of the surface layer of pump impellers. Methods for extending the service life of pump impellers through strengthening their surface layer with functional coatings are analyzed, and the advantages of cold gas-dynamic spraying technology are scientifically substantiated. Using this approach, metallic and metal–ceramic composite coatings are formed, which increase the resistance of impellers to hydroabrasive and cavitation effects. It is demonstrated that the application of such coatings makes it possible to reduce the operating costs of centrifugal pumps and significantly extend their service life.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: centrifugal pump
  topic: keywords
subject: impeller
  topic: keywords
subject: hydroabrasive wear
  topic: keywords
subject: functional coating
  topic: keywords
subject: cold gas-dynamic spraying
  topic: keywords
subject: hydrotransport
  topic: keywords
subject: efficiency
  topic: keywords
subject: operational reliability
  topic: keywords
creator: Umidjon Erkinovich Kayumov
creator: Shahlo Saxibjonovna Pardayeva
creator: Muhammad Farxodovich Istamov
rights: Copyright (c) 2026 Kayumov, U.E., Pardayeva, Sh.S., Istamov, M.F. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-14
publication date: 2026-03-14
starting page: 57
ending page: 62
doi: 10.70769/3030-3214.SRT.4.1.2026.20

ENVIRONMENTAL IMPACT OF SPENT VANADIUM CATALYSTS AND METHODS FOR THEIR PROCESSING
type: item
description: This scientific article analyzes the condition of vanadium catalysts widely used in industry after their utilization, their environmental impact, and associated ecological risks. The physicochemical properties, toxicity, and mechanisms of distribution of vanadium compounds in soil, water, and air are elucidated. Additionally, methods for reducing environmental risks through recycling, neutralization of spent vanadium catalysts, and the implementation of alternative technologies are examined on a scientific basis.
subject: Mining, Metallurgy, and Manufacturing Industry
  topic: section
subject: 05.00.00 - Technical Sciences
  topic: category
subject: Vanadium catalysts
  topic: keywords
subject: V2O5
  topic: keywords
subject: environmental risk
  topic: keywords
subject: industrial waste
  topic: keywords
subject: toxic elements
  topic: keywords
subject: recycling
  topic: keywords
creator: Gаyrаt Fаrhоdоvich Mаmаrаimоv
creator: Hasanboy Zohidjonugli Ergashev
rights: Copyright (c) 2026 Mаmаrаimоv, G‘.F., Ergashev, H.Z. (Muallif) https://creativecommons.org/licenses/by/4.0
date: 2026-03-14
publication date: 2026-03-14
starting page: 47
ending page: 50
doi: 10.70769/3030-3214.SRT.4.1.2026.19