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Articles 31 - 38 of 38
Full-Text Articles in Engineering
Effect Of Intermediate Connections On The Generator`S Static Stability, S.E. Shernazarov
Effect Of Intermediate Connections On The Generator`S Static Stability, S.E. Shernazarov
Technical science and innovation
This article provides the influence of the active, inductive capacitive load on the static stability of synchronous generators and compiled the angular characteristics of the generator power at various loads. When a resistive load is connected, an intermediate power extraction of Pr (δ) occurs. It can be defined as the difference Rg (δ) – Ph (δ) = Pr (δ), depending on the angle δ. The presence of this selection leads to an increase in the ultimate in static stability generator power. However, this reduces the possibility of transmitting power to the receiving system. Therefore, we can talk about the ambiguous …
Studying Of The Material Composition And Development Of The Technology Of Processing Of Gold-Containing Sulfide Samples Of One Of The Deposits Of The Republic Uzbekistan, Kh Akhmedov, Zh.M. Bekpulatov, G. K. Solijonova, N.Z. Sharifova
Studying Of The Material Composition And Development Of The Technology Of Processing Of Gold-Containing Sulfide Samples Of One Of The Deposits Of The Republic Uzbekistan, Kh Akhmedov, Zh.M. Bekpulatov, G. K. Solijonova, N.Z. Sharifova
Technical science and innovation
The article discusses the results of studying the material composition and the development of technology for processing gold-bearing sulfide ore samples. The material composition of the ore samples was studied by spectral, chemical, assay and rational analysis of gold and silver. Based on a study of the material composition of the ore samples, the following conclusions were made: gold and silver are the industry's most valuable components. It is shown that the use of sulfuric acid treatment of a cinder of graviofloraf concentrate can allow to improve the technological performance of the process. As a result of the mixture of …
Solution Of The Problem Of Fuel Combination In Maintenance, B. Tulaev, H.A. Viarshyna, J.B. Mirzaabdullaev, J.O. Khakimov
Solution Of The Problem Of Fuel Combination In Maintenance, B. Tulaev, H.A. Viarshyna, J.B. Mirzaabdullaev, J.O. Khakimov
Technical science and innovation
In article, the solution of problem of the combined use of fuel in operation is considered. It is shown that during the operation of the gasoline automobile engine the requirement to octane number of fuel changes depending on engine operation mode: at increase in rotary speed the required octane number of fuel decreases, and at increase in loading increase in octane number of fuel is necessary. The combined use of low-bracket gasoline with high-octane liquefied gas is given. The condition supporting necessary octane number of fuel on various modes for ensuring without detonation work and optimization of combustion procedure is …
Analysis Of Monitoring Of The At-3 Autotransformator In Tashtes Mode, F.S. Isakov
Analysis Of Monitoring Of The At-3 Autotransformator In Tashtes Mode, F.S. Isakov
Technical science and innovation
The article considers the results of the analysis of autotransformers operation mode monitoring. The time diagram of active load current and oil temperature of autotransformer TashTES AT-3 is established and during one year changes of these variables and basic parameters of autotransformer were observed. Technical faults of the power transformer and high power autotransformer are established and methods of their elimination are determined. Damage of transformers and autotransformers with voltage of 110-500 kV of about 30% of the total number of outages which were accompanied by internal short-circuits and two main causes of damage were determined. The main causes of …
Method For Primary Processing Of Here Silkworm Cocoons By Using Infrared Radiation And Elastic Waves, J.E. Safarov, Sh.A. Sultanova, D.I. Samandarov
Method For Primary Processing Of Here Silkworm Cocoons By Using Infrared Radiation And Elastic Waves, J.E. Safarov, Sh.A. Sultanova, D.I. Samandarov
Technical science and innovation
The article discusses the results of an experimental study of the primary processing of silkworm cocoons. In the laboratory of the department of Tashkent State Technical University a full-scale test was carried out for the primary processing of silkworm cocoons. Experimental work was carried out to pacify and dry the living cocoons of the silkworm of the duragay cultivar “MusaffoTola” grown during the summer season. Studies were carried out to determine parameters such as temperature and time of the primary processing of the silkworm in 5-fold repetition.The initial moisture content of live silkworm cocoons was 36–40%. According to the results …
Development Of A High-Speed Algoritm Of Neuro-Logical Conclusion, I.H. Siddikov, D.B. Yadgarova
Development Of A High-Speed Algoritm Of Neuro-Logical Conclusion, I.H. Siddikov, D.B. Yadgarova
Technical science and innovation
One of the ways to increase the efficiency of the process of managing continuous dynamic objects is to develop new or improve existing control systems based on modern methods involving the achievements of information technology. The article deals with the creation of highly efficient control algorithms for technological objects, operating in conditions of uncertainty, designed to manage real-life objects. An algorithm is proposed for the structural-parametric adaptation of the PID parameters (proportional-integral-differential) -regulator, which allows to reduce the number of iterations in the learning process of the fuzzy-logical inference algorithm by reducing empty solutions. To determine the empty solutions, hybrid …
Obtaining Some Thermodynamic Parameters Containing Metacrylate And Allyl Groups Containing In Composition, M.I. Abdukakhkharova, A.I. Ismailov, U.M. Mirzaev, R.I. Ismailov
Obtaining Some Thermodynamic Parameters Containing Metacrylate And Allyl Groups Containing In Composition, M.I. Abdukakhkharova, A.I. Ismailov, U.M. Mirzaev, R.I. Ismailov
Technical science and innovation
The article discusses the preparation of some thermodynamic parameters characterizing the final product of complex radical polymerization of amino alkyl acrylate derivatives containing both methacrylate and alkyl groups of low molecular weight compounds with electron acceptors - polymerization initiators at temperatures that exclude thermal decomposition of the initiators themselves. The equilibrium constant of the complication reaction and the molar extinction coefficient of the complex were determined by graphically solving the Bеneshe-Hildebrand equation, the heats of complex formation, entropy, Gibbs energy were found, and the elemental composition of low molecular weight and high molecular weight substances was determined. As can be …
Analysis And Trends In The Development Of Models For Studying Thermal Physical Properties Of Solid And Disperse Substances, А.А. Abdurakhmanov, А.А. Rashidov, М.М. Мakhmudjanov
Analysis And Trends In The Development Of Models For Studying Thermal Physical Properties Of Solid And Disperse Substances, А.А. Abdurakhmanov, А.А. Rashidov, М.М. Мakhmudjanov
Technical science and innovation
The paper studies the thermal physical properties of solid disperse, powder and granular materials, and also reveals that the thermal physical properties of various materials are of different nature, mainly the thermal physical properties of metallic and nonmetallic materials are sharply determined by the nature of their detection, which indicates the reliability of the mathematical model that describes the basic thermal physical parameters that are structural geometric parameters of solid disperse, powder and granular materials and as a result they are classified on their thermal physical properties. Also the choice of the method for calculating the basic properties of solid …