69-75
211
07 Sep, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
The work investigated the influence of ion implantation and subsequent annealing on the parameters of energy bands, emission properties, as well as on the depth (λ) of the escape of true secondary electrons. It has been shown that the depth of escape of truly ...
55-62
248
07 Sep, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
Hydrogen is of great interest as a carrier of clean energy in the global transition to renewable energy sources. Uzbekistan is distinguished by its high solar radiation; therefore, it offers a wide opportunity in the production of hydrogen from solar energy. I...
43-47
260
07 Sep, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
The agrotechnical and energy performance of the ripper plough for non-tillage depends largely on the relative position of the roller and the last working body with an inclined rack. The purpose of the study is to substantiate the longitudinal distance between ...
19-27
323
07 Sep, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
The article examines key aspects of the development and design of outdoor swimming pools taking into account modern engineering solutions and environmental requirements. Particular attention is paid to the choice of location, construction materials, safety sys...
79-83
208
30 Jun, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
This article analyzes the issue of enhancing energy efficiency in electric arc furnaces (EAF). The study focuses on the current state of controlling and regulating electrode movement, which directly affects electrical energy consumption during the electric ste...
65-69
312
30 Jun, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
This article addresses the issues of mathematical modeling of water flow velocity and pressure parameters. The theoretical basis relies on the Bernoulli and Navier–Stokes equations, while the dynamic and kinematic viscosity of water is analyzed. To determine f...
54-64
215
30 Jun, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
This paper presents the results of a comprehensive evaluation of a small-scale hybrid biogas plant for farms in Uzbekistan. The system under study includes a 0.5 m³ bioreactor, a 2 m² solar collector, and a 0.55 kW photovoltaic panel, providing thermal and ele...
32-53
176
30 Jun, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
The article is devoted to the analysis and demonstration of approaches to the calculation of combined heating and cooling systems using heat pumps and renewable energy sources (RES) under the conditions of Uzbekistan. Calculation results are presented, and the...
118-129
218
18 Jun, 2025
TECHNICAL SCIENCES
The problem of denoising speech signals is a relevant task for speech recognition systems, mobile communication devices, and voice interfaces. This study proposes a new approach that combines Self - Organizing Map (SOM) and Spectral Subtraction methods. This a...
130-137
309
18 Jun, 2025
TECHNICAL SCIENCES
Abstract. This scientific article comprehensively analyzes the technical and operational problems arising from the symmetrical and asymmetrical distribution of loads in low-voltage electrical networks. In particular, voltage drops and power losses due to uneve...
79-83
328
18 Jun, 2025
TECHNICAL SCIENCES
This article examines the issue of improving energy efficiency in electric arc furnaces (EAFs). The study focuses on the current state of controlling and regulating electrode movement, which directly affects electrical energy consumption during the electric st...
70-78
327
18 Jun, 2025
TECHNICAL SCIENCES
This article presents a newly developed method for theoretically calculating the annual power output of a stationary 810 kW grid-connected photovoltaic power plant located in the Kashkadarya region, known for its hot and dry climate. The results derived from t...
54-64
338
18 Jun, 2025
TECHNICAL SCIENCES
Abstract. This paper presents the results of a comprehensive evaluation of a small-scale hybrid biogas plant for farms in Uzbekistan. The system under study includes a 0.5 m³ bioreactor, a 2 m² solar collector, and a 0.55 kW photovoltaic panel, providing therm...
32-53
511
18 Jun, 2025
TECHNICAL SCIENCES
The article is devoted to the analysis and demonstration of approaches to the calculation of combined heating and cooling systems using heat pumps and renewable energy sources (RES) under the conditions of Uzbekistan. Calculation results are presented, and the...
65-69
423
18 Jun, 2025
TECHNICAL SCIENCES
This article addresses the issues of mathematical modeling of water flow velocity and pressure parameters. The theoretical basis relies on the Bernoulli and Navier – Stokes equations, while the dynamic and kinematic viscosity of water is analyzed. To determine...
39-47
212
31 Mar, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
В последние годы строительство солнечных фотоэлектрических (ФЭС) станций ускорилось в связи со значительным снижением затрат на электроэнергию для их использования, а также снижением нагрузки на центральную электросеть и благоприятными реформами в сфере регули...
20-32
232
31 Mar, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
This article analyzes the thermal efficiency of energy-active window units (EAWUs) for passive houses under the climatic conditions of Tashkent city (6th climatic zone of Uzbekistan) based on the Giovanni bioclimatic diagram. The study focuses on the role of w...
14-20
202
31 Mar, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
The article presents the results of an experimental study of the operation processes of a solar photovoltaic power plant (SPVPP) with a total capacity of 40 kW, connected directly to the power grid, for one year. To improve the reliability of the SPVPP, the nu...
48-53
209
29 Mar, 2025
GEOLOGICAL AND MINERALOGICAL SCIENCES
Today, the problem of waste is one of the social, environmental, and energy problems not only in our country, but also in countries around the world. The article proposes a thermal scheme for a device designed for the thermal processing of municipal solid wast...
121-125
376
29 Mar, 2025
TECHNICAL SCIENCES
The article presents a new study of efficient technology and technical tools for planting winter wheat between rows of cotton in cotton fields, which effectively tills the soil, creates fine soil, reduces energy and operating costs, and provides technical tool...