130-137
406
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...
100-105
346
18 Jun, 2025
TECHNICAL SCIENCES
This article provides a detailed analysis of fuzzy logic and fuzzy production rules, which play a significant role in artificial intelligence and expert systems. The author justifies the relevance of modeling fuzzy inference for decision-making processes based...
32-53
627
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
548
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...
48-53
297
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...
126-131
505
29 Mar, 2025
TECHNICAL SCIENCES
In Uzbekistan, vegetable cultivation is considered one of the important sectors of agriculture. The development of this sector is closely linked to the use of modern technologies and technical equipment in soil tillage and preparation for planting. The researc...
128-134
353
23 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
Existing systems in the field of cooking oil production in our republic are designed to process the large quantities of raw materials, predominately of one type. Black cumin seeds cannot be processed. Production facilities for processing of black cumin seeds r...
110-117
308
23 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
Currently, in world practice, scientific research and design work is being carried out on the development and creation of passive solar heating systems. If the heat storage wall of a passive solar heating system consists of a perforated heat storage wall, then...
96-102
393
23 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The article provides information on a method for determining friction forces in disc tensioners of a sewing machine. This article presents calculation schemes for the implementation of plate and spring structures, graphs of the dependence of the friction force...
75-81
432
23 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
Today, there are several types of photovoltaic cells on the commercial market, and their efficiency in natural conditions varies depending on climatic factors. Taking into account that the weather conditions of different regions are different, there is a probl...
38-44
349
14 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
Due to the high temperature of solar thermochemical reactors that produce hydrogen, the glass that receives the concentrated light flux is deformed. Therefore, it is necessary to cool the bottle, which leads to the modernization of the reactor design.The light...
69-76
297
07 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The main task of the design of earthen channels is to calculate the dimensions of the stable channel shape in which irreversible deformation of the channel cross-section does not occur. This article provides information on calculating the hydraulic parameters ...
91-101
317
03 Dec, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
In modern conditions of intensive increasing the electricity consumption in all spheresof human activity, limited hydrocarbon fuel reserves, as well as the severity of environmentalproblems in the energy sector require the development and implementation of mor...
57-65
353
17 Nov, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The heat requirement of an egg incubator working with solar energy is studied in thearticle. In the determination, the following were made: there is a steady-state condition, onedimensionalheat flow prevails, the incubator materials have a constant thermal con...
128-133
381
25 Sep, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The аrticle is devoted to the cаlculаtion of a hydrаulic shock аbsorber with а diаphrаgm installed at the end of а pressure pipeline. Theoreticаl solutions of hyperbolic type wave equations for а polytropic process (n = 1.20) аre proposed.To dаmpen the intensi...
111-118
319
25 Sep, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The article provides an analysis of energy-efficient operating modes and parameters of cascade pumping stations.The operating mode of pump stations in irrigation systems is determined by a number of parameters, including structural design, technological, and e...
58-56
339
25 Sep, 2024
GEOLOGICAL AND MINERALOGICAL SCIENCES
The heat requirement of an egg incubator working with solar energy is studied in the article. In the determination, the following were made: there is a steady-state condition, one-dimensional heat flow prevails, the incubator materials have a constant thermal ...