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Articles 16141 - 16170 of 198086

Full-Text Articles in Engineering

Fracturing Characteristics Of Significantly Thick Overburden Inducing Mine Earthquakes And The Stress-Triggering Mechanisms Of The Mine Earthquakes, Dou Linming, Cao Anye, Yang Yao, He Hu, Yang Yaoxin, Bai Xianxi, Gu Qianyue, Li Songhui, Fu Xiangchao, Gu Yingshi, Wu Zhen, Zhang Di Oct 2024

Fracturing Characteristics Of Significantly Thick Overburden Inducing Mine Earthquakes And The Stress-Triggering Mechanisms Of The Mine Earthquakes, Dou Linming, Cao Anye, Yang Yao, He Hu, Yang Yaoxin, Bai Xianxi, Gu Qianyue, Li Songhui, Fu Xiangchao, Gu Yingshi, Wu Zhen, Zhang Di

Coal Geology & Exploration

Objective Frequent mine earthquakes that cause surface seismaesthesia, induced by the fracturing of significantly thick overburden in deep coal mining, are identified as the most severe challenge to the efficient production of mining areas. There is an urgent need to overcome the current difficulty caused by mine earthquakes induced by significantly thick overburden, which feature high frequency and challenging prevention and control. Methods Using such mine earthquakes occurring in a certain fully mechanized mining face adjacent to goaves in the Khujirt mining area in Ordos, Inner Mongolia Autonomous Region, as an example, this study (1) analyzed the evolutionary patterns of …

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Mechanism Of Thrust Fault Slip Under The Disturbance Of Stress Waves Induced By Coal Mining, Zhang Ningbo, Xu Qianhai, Ouyang Zhenhua, Li Yizhe, Shi Qingwen, Qin Hongyan, Yi Haiyang Oct 2024

Mechanism Of Thrust Fault Slip Under The Disturbance Of Stress Waves Induced By Coal Mining, Zhang Ningbo, Xu Qianhai, Ouyang Zhenhua, Li Yizhe, Shi Qingwen, Qin Hongyan, Yi Haiyang

Coal Geology & Exploration

Objective The seismic sources, such as roof collapse and artificial blasting, in coal mining may induce stress waves, which will cause the surrounding faults lose its stability and thus cause the dynamic disasters such as rockbursts etc. Methods The propagation law of stress waves in the fracture structure and the evolution characteristics of friction energy under the action of stress waves were studied through dynamic photoelastic experiment, numerical simulation and theoretical analysis based on the thrust fault F16 in Henan Yima mining area. Meanwhile, the disturbance law of the location of seismic source and energy to the slip of thrust …

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Influencing Analysis Of Bedding Plane Location On The Dynamic Failure Characteristics Of Coal-Rock Combinations, Zheng Jianwei, Zhang Xiufeng, Ju Wenjun, Wang Cunwen, Han Yueyong, Li Guoying, Chen Yang, Li Haitao, Hao Jinwei, Liu Biao Oct 2024

Influencing Analysis Of Bedding Plane Location On The Dynamic Failure Characteristics Of Coal-Rock Combinations, Zheng Jianwei, Zhang Xiufeng, Ju Wenjun, Wang Cunwen, Han Yueyong, Li Guoying, Chen Yang, Li Haitao, Hao Jinwei, Liu Biao

Coal Geology & Exploration

Objective The bedding plane location significantly impacts the dynamic failure processes and mechanical properties of coal-rock composites, but the specific influence patterns remain unclear. Methods Dynamic mechanical tests were conducted on coal-rock composite specimens with bedding planes located at the top, middle, and bottom using the split Hopkinson pressure bar (SHPB). The investigation focused on the dynamic stress-strain behavior, failure process, energy distribution, and fragmentation characteristics under impact loading conditions. Results and Conclusions The findings indicate that: (1) The dynamic stress-strain behavior of coal-rock composites can be segmented into five distinct stages: near-linear stage, nonlinear dynamic stress-strain stage, elastic modulus …

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Exploring The Evolutionary Patterns Of Stress Field In Coal Seams During Water Drainage In Overburden Confined Aquifers Based On Charge Monitoring, Wang Gang, Yu Xiaojie, Wang Aiwen, Xiao Xiaochun, Wang Yong, Ding Xin, Wang Weibin, Xu Zengjun, Du Lulu Oct 2024

Exploring The Evolutionary Patterns Of Stress Field In Coal Seams During Water Drainage In Overburden Confined Aquifers Based On Charge Monitoring, Wang Gang, Yu Xiaojie, Wang Aiwen, Xiao Xiaochun, Wang Yong, Ding Xin, Wang Weibin, Xu Zengjun, Du Lulu

Coal Geology & Exploration

Objective Deep coal mining areas in regions such as Inner Mongolia, Shaanxi, Shandong, and Gansu in China feature intricate hydrogeological conditions, which lead to substantial water drainage from roofs and increasingly prominent rock bursts induced by water drainage in overburden confined aquifers. This study investigated the evolutionary patterns of the stress field in coal seams during the water drainage of overburden confined aquifers. Methods By combining the laboratory charge induction experiments of coals under graded loading with charge monitoring pre- and post-water drainage from a roof in a coal mine, this study systematically examined the variations of induced charge in …

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Spatiotemporal Evolutionary Characteristics Of Asymmetric Stress Transfer In Overburden Of Steeply Dipping Coal Seams, Zhu Kaipeng, Li Zhilin, Luo Shenghu, Xie Panshi, Fan Juan, Wang Tong, Tian Chengyang, Yan Zhuangzhuang Oct 2024

Spatiotemporal Evolutionary Characteristics Of Asymmetric Stress Transfer In Overburden Of Steeply Dipping Coal Seams, Zhu Kaipeng, Li Zhilin, Luo Shenghu, Xie Panshi, Fan Juan, Wang Tong, Tian Chengyang, Yan Zhuangzhuang

Coal Geology & Exploration

Objective The key to the safe and efficient mining of steeply dipping coal seams is the effective control of the stability of surrounding rocks, while the effective control is underpinned by identifying and revealing the spatiotemporal evolutionary characteristics of the stress transfer path of the overburden. Methods This study investigated mining face 25221 of a coal mine in Xinjiang through field measurement, physical simulations using similar materials, and numerical computation. This study determined the rock pressure behavior of the mining face, along with the deformation and failure patterns of the overburden, through a comprehensive analysis. Accordingly, it established stress characteristic …

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Evolutionary Pattern And Control Technology Of Mine Pressure When Mining Face For Coal Pillars In Main Roadways Passing Through Abandoned Roadways, Li Zhenhua, Ren Ziyuan, Du Feng, Ren Hao, Wang Wenqiang Oct 2024

Evolutionary Pattern And Control Technology Of Mine Pressure When Mining Face For Coal Pillars In Main Roadways Passing Through Abandoned Roadways, Li Zhenhua, Ren Ziyuan, Du Feng, Ren Hao, Wang Wenqiang

Coal Geology & Exploration

Objective With the adjustment of the mining face layout in mines, the overburden roof of the mining face for coal pillar recovery is frequently difficult to control when the mining face passes through abandoned roadways. Methods To address this challenge, this study investigated the coal pillar mining face outside the No.2 panel in the Zhaogu No.2 Coal Mine in Henan Province, which passes through abandoned roadways. Using methods like theoretical analysis, numerical simulation, and in-situ tests, this study examined the composite structure of the mining face and the broken overburden of abandoned roadways, followed by simulation of the full-cycle evolutionary …

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Spatial Surveying Characteristics And Reconstruction Method Of Millimetre Wave Radar In Complex Environment Of Coal Mine Roadway, Xue Xusheng, Yang Xingyun, Yue Jianing, Wang Chuanwei, Mao Qinghua, Ma Hongwei, Wang Rongquan Oct 2024

Spatial Surveying Characteristics And Reconstruction Method Of Millimetre Wave Radar In Complex Environment Of Coal Mine Roadway, Xue Xusheng, Yang Xingyun, Yue Jianing, Wang Chuanwei, Mao Qinghua, Ma Hongwei, Wang Rongquan

Coal Geology & Exploration

Objective Underground spatial surveying of coal mine is an important part of transparent geological modelling for coal mine. However, the complex environment of coal mine roadway, incomplete information acquisition, insufficient accuracy of sensed data and other difficulties need to be urgently solved. Methods First, the signal characteristics of millimeter wave radar under the complex environmental factors such as dust, water mist, surrounding rock structure, etc. were studied in depth, the millimeter wave signal attenuation model was established for the surrounding rock of coal mine roadway, and the influence mechanism of complex environmental factors for millimeter wave radar was comparatively analyzed. …

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Advances In Research On Stratigraphic Characteristic Parameter Modeling And Safety Early Warning For Deep Geological Drilling Processes, Yang Yulong, Cao Weihua, Gan Chao, Li Yupeng, Wu Min Oct 2024

Advances In Research On Stratigraphic Characteristic Parameter Modeling And Safety Early Warning For Deep Geological Drilling Processes, Yang Yulong, Cao Weihua, Gan Chao, Li Yupeng, Wu Min

Coal Geology & Exploration

Significance As the new round of national exploration & development planning continues, resource exploration is advancing toward the deep Earth. However, deep strata exhibit diverse rock types, which complicate the measurement of rock mechanical parameters. Furthermore, the harsh environments of these strata, characterized by high temperatures, high pressures, and high in-situ stress, are prone to induce downhole accidents like drilling tool failure, wellbore collapse, loss of circulation, and well kicks, posing challenges to geological drilling. Advances Aiming at the perception and modeling of complex geological environments, this study reviews the existing studies on the modeling of stratigraphic characteristic parameters from …

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Organic Amendments Improve The Quality Of Coal Gob Spoils: A Sustainable Mining Waste Reclamation Method, Zhiming Zhang, Anshuman Satpathy, Kirby Morris, Abhishek Roychowdhury, Rupali Datta, Dibyendu Sarkar Oct 2024

Organic Amendments Improve The Quality Of Coal Gob Spoils: A Sustainable Mining Waste Reclamation Method, Zhiming Zhang, Anshuman Satpathy, Kirby Morris, Abhishek Roychowdhury, Rupali Datta, Dibyendu Sarkar

Henry M. Rowan College of Engineering Departmental Research

Coal mine tailings can lead to a range of environmental problems, including toxic metal contamination, soil erosion, acid mine drainage, and increased salinity. Mine spoils from coal mining activities accumulated as gob piles are difficult to reclaim due to constraints such as a steep slope, unsuitable pH, insufficient nutrient supply, metal toxicity, low water-holding capacity, and poor soil structure. We investigated the efficiency of low-cost amendments on coal gob spoils from Carthage Coal Field (CCF) in New Mexico in improving the quality of coal gob spoils. Gob spoil was incubated for 90 days with various rates of organic amendments such …

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Addressing Output Ripples In Low-Power Cmos-Based Multistage Dc-Dc Boost Converters For Self-Powered Electrochemical Sensors Applications, Sameh O. Abdellatif, Ahmat Abdelwahid Oct 2024

Addressing Output Ripples In Low-Power Cmos-Based Multistage Dc-Dc Boost Converters For Self-Powered Electrochemical Sensors Applications, Sameh O. Abdellatif, Ahmat Abdelwahid

Electrical Engineering

No abstract provided.

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Improving Methods To Ensure Accuracy In The Machining And Repair Of Aircraft Parts Using Multi-Parametric Control And Management Systems, A.M. Abduvaliev, Sh.B. Mamirov Oct 2024

Improving Methods To Ensure Accuracy In The Machining And Repair Of Aircraft Parts Using Multi-Parametric Control And Management Systems, A.M. Abduvaliev, Sh.B. Mamirov

Chemical Technology, Control and Management

This article examines algorithms for the movement of measuring heads (MH) on controlled component surfaces on numerically controlled (NC) machines. Algorithms for surface inspection are developed based on the installation error range of the components. An algorithm for moving the measuring head in hole inspection, accounting for component installation error, is presented. The inspection time is determined to identify optimal movement algorithms for measuring heads on controlled surfaces. A method for inspecting component planes is presented, along with formulas for calculating the inspection time of both plane and hole measurements, considering installation error. Algorithms for plane inspection based on various …

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Automation Of Medical Facilities, Automation Of Diagnostic Processes For Intelligent Primary Diagnosis Of Diseases Of The Oral Cavity., Otabek Ismailov, X.F. Temirova Oct 2024

Automation Of Medical Facilities, Automation Of Diagnostic Processes For Intelligent Primary Diagnosis Of Diseases Of The Oral Cavity., Otabek Ismailov, X.F. Temirova

Chemical Technology, Control and Management

A mathematical machine learning model for dental disease diagnosis plays an important role in medicine with high accuracy, speed, and personalization capabilities. This allows for increased efficiency not only for patients but also for medical personnel. For this reason, in this article, an improved mathematical model has been developed to effectively detect dental diseases.

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Organization And Design Of Smart Greenhouse Models And Using Types Of Energies, Nodirbek Rustambekovich Yusupbekov, Dong Zhang, Muso Berdiyor Ugli Allanov Oct 2024

Organization And Design Of Smart Greenhouse Models And Using Types Of Energies, Nodirbek Rustambekovich Yusupbekov, Dong Zhang, Muso Berdiyor Ugli Allanov

Chemical Technology, Control and Management

In this article, you can see the models of modern greenhouses, reducing water consumption, parameters and some factors to be considered for automated greenhouses, proposed models for organizing greenhouses, and the Smart Greenhouse model is written in the Siemens Simatic S7 1200 controller by using the TIA portal program.

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Control Algorithms With A Predictive Model Of Dynamic Objects Of Continuous And Semi-Continuous Industrial Production, Sh.M. Gulyamov, M.Yu. Doshchanova Oct 2024

Control Algorithms With A Predictive Model Of Dynamic Objects Of Continuous And Semi-Continuous Industrial Production, Sh.M. Gulyamov, M.Yu. Doshchanova

Chemical Technology, Control and Management

The paper presents methods and algorithms for automatic control based on predictive models of dynamic objects in continuous and semi-continuous industrial production. The approach under consideration allows further improvement of scientific foundations and formalized methods for designing the implementation of highly efficient systems for advanced control of complex technological processes and industrial production in real-time.

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Identification Of Acoustic Emission Signal Measuring Channels, Miraziz Vorisovich Sagatov Oct 2024

Identification Of Acoustic Emission Signal Measuring Channels, Miraziz Vorisovich Sagatov

Chemical Technology, Control and Management

When developing design monitoring systems based on the acoustic emission method, the dynamic properties of the entire AE signal path, which are related to fast processes, are important. The corresponding mathematical models must be used to consider the dynamics of the measurement system channels. In addition, it is necessary to provide the possibility of a detailed analysis of acoustic emission signals with the definition of a certain set of their parameters, such as amplitude, pulse steepness, duration, etc. The vector of such parameters is a signal portrait that can be used to solve monitoring and diagnostics problems. Providing for the …

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Development Of Structures Of Intellectual Control Systems Of The Rectification Process, Shodievich Avazov Yusuf Oct 2024

Development Of Structures Of Intellectual Control Systems Of The Rectification Process, Shodievich Avazov Yusuf

Chemical Technology, Control and Management

Rectification processes, which are considered complex technological processes, and the development of structures of intelligent systems for controling the work of rectification devices and columns, which serve to organize them, were considered. The need to build intelligent control systems is based on the fact that the progress of the rectification process is affected by a large number of factors, including temperature, pressure, consumption, temperature difference, concentration of mixtures, properties of light and heavy volatile components. The structure of an intelligent control system based on the situational control method for rectification devices is proposed. The architecture of the proposed intelligent control …

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Self-Calibration Of Smart Sensors Based On Fuzzy Logic, U.A. Ruziev, M.K. Shodiev Oct 2024

Self-Calibration Of Smart Sensors Based On Fuzzy Logic, U.A. Ruziev, M.K. Shodiev

Chemical Technology, Control and Management

The paper discusses and analyzes the application of fuzzy logic methods for self-calibration of measuring devices. In particular, the principles of constructing measurement devices based on fuzzy logic, based on linguistic variables and rules, are considered, which makes it possible to take into account various conditions and requirements of production processes. To illustrate the effectiveness of the proposed methods, the results of experiments on measuring and classifying process parameters using fuzzy logic algorithms are presented. The study also covered fuzzy rule methods for evaluating and processing measurement data based on expert knowledge and linguistic variables. Fuzzy rule-based systems are shown …

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Methods For Applying And Optimizing Digital Control Systems In The Process Of Extracting Vegetable Oils, Mirhalil Agzamovich Ismailov, Matluba Abduhalimovna Isaqova Oct 2024

Methods For Applying And Optimizing Digital Control Systems In The Process Of Extracting Vegetable Oils, Mirhalil Agzamovich Ismailov, Matluba Abduhalimovna Isaqova

Chemical Technology, Control and Management

Nowadays, the advancement of science and technology has led to more complex production processes and management systems, requiring in-depth research into their structure and interconnections. A key method for such research is mathematical modeling, which has become more prevalent with the development of information technologies and simulation modeling. This study focuses on building a simulation model for oil production processes, particularly cottonseed oil extraction, addressing problem formulation, modeling stages, and the scientific and practical significance. The model plays a vital role in automating production, improving product quality, and increasing efficiency. The mathematical model of oil extraction helps optimize the process …

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Troubleshooting And Diagnostics Of Electronic Computing Devices Using The Object Model Creation Method, Gulmira Shuxratovna Abidova, Asad Xolboy O’Gli Shosalmanov Oct 2024

Troubleshooting And Diagnostics Of Electronic Computing Devices Using The Object Model Creation Method, Gulmira Shuxratovna Abidova, Asad Xolboy O’Gli Shosalmanov

Chemical Technology, Control and Management

This paper presents a major challenge in fault diagnosis for electronic computing equipment is developing an object model tailored to support diagnostic tasks. Effective fault localization requires establishing a link between the diagnostic process and the object model. This connection should enable direct observation of diagnostic points and organize all potential defect and fault sources to clearly show their impact on each diagnostic point and the relevant parameters. Achieving this necessitates comprehensive information about parameter values, expected variations, and the permissible relationships between network elements that generate these parameters. Therefore, building a robust model is essential to facilitate accurate fault …

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Intensification Of Convective Heat Transfer In Tubular-Grid Packings Of Rectification Columns, Ainagul Abdiualievna Nurillaeva, Elbek Tulkinovich Mavlonov, Khabibulla Sadullaevich Nurmukhamedov, Nazora Sharofovna Khudoiberdieva Oct 2024

Intensification Of Convective Heat Transfer In Tubular-Grid Packings Of Rectification Columns, Ainagul Abdiualievna Nurillaeva, Elbek Tulkinovich Mavlonov, Khabibulla Sadullaevich Nurmukhamedov, Nazora Sharofovna Khudoiberdieva

Chemical Technology, Control and Management

The paper presents the results of an experimental study on the intensification of convective heat exchange in tubular-lattice packings of rectification columns. Currently, in various sectors of the country's economy, either plate or packed rectification columns are mainly used, and combined devices are not used. Therefore, in this paper, studies were conducted on the intensification of the rectification process by using tubes with spiral turbulators with their staggered and corridor placement in the tube sheet. Analysis of the experimental data showed that the pitch of the turbulators s/deb significantly affects the heat exchange process. At the pitch of the spiral …

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Comparative Analysis Of Not Logic Elements Implemented On Mosfet Transistors With Their Analogs Implemented On Bipolar Transistors, Nodira Batirdjanovna Аlimova, Nilufar Baxtiyorovna Gulyamova Oct 2024

Comparative Analysis Of Not Logic Elements Implemented On Mosfet Transistors With Their Analogs Implemented On Bipolar Transistors, Nodira Batirdjanovna Аlimova, Nilufar Baxtiyorovna Gulyamova

Chemical Technology, Control and Management

This paper presents a comparative analysis of existing 'NOT' logic elements (LE) based on MOSFET transistors and their analogs using bipolar transistors. It was found that the 'NOT' LE circuit implemented with n-MOS transistors is analogous to the 'NOT' LE implemented with n-p-n bipolar transistors, i.e., integral-injection logic (I2L). The circuit of the LE"NOT" made on p-MOS transistors is an analog of the LE"NOT» made on bipolar transistors of the p-n-p structure. The methodologically significant similarity between the LE"NOT," implemented on complementary MOSFET transistors, and the LE" NOT," implemented on complementary bipolar transistors (BT), using the injection-voltaic effect and representing …

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Numerical Simulation Of Gas Flow In A Direct-Flow Cyclone, V.S. Toptalov, S.U. Ganieva, O.M. Flisyuk, Kh.S. Nurmukhamedov Oct 2024

Numerical Simulation Of Gas Flow In A Direct-Flow Cyclone, V.S. Toptalov, S.U. Ganieva, O.M. Flisyuk, Kh.S. Nurmukhamedov

Chemical Technology, Control and Management

A numerical model of gas flow in a direct-flow cyclone of two different configurations is presented. The main task of the simulation was to determine the gas velocity field in the apparatus and analyze the presence of a turbulent wake of the stabilizer swirled, which can have a negative impact on the efficiency of the apparatus. During the study, it was found that when the gas flow is disrupted by the stabilizer of the swirler, a turbulent wake is formed, into which trapped particles can fall. The solution to this problem is to lengthen the stabilizer and increase its diameter. …

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Flow Distribution In Magnetic Circuits Of Measuring Transducers With Distributed Parameters And A Concentrated Longitudinal Excitation Winding, Kamila Jurayeva, Javharbek Fayzullayev, Usmon Mukhtorov Oct 2024

Flow Distribution In Magnetic Circuits Of Measuring Transducers With Distributed Parameters And A Concentrated Longitudinal Excitation Winding, Kamila Jurayeva, Javharbek Fayzullayev, Usmon Mukhtorov

Chemical Technology, Control and Management

The given paper presents the flow distribution in magnetic circuits of measuring transducers with distributed resistance parameters of long ferromagnetic rods and the magnetic capacitance between them and a concentrated excitation winding using the example of a magnetic circuit of a new magnetically elastic tensile force measuring transducer. It is shown that in such magnetic circuits, the magnetic voltage and magnetic flux into the section of the excitation winding installation have maximum values, gradually decreasing from this section toward the end parts of the magnetic circuit. Suppose the rate of change of the magnetic voltage along the coordinate is practically …

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Research And Justification Of The Optimal Optical And Design Parameters Of The Activated Sludge Concentration Measuring Device For Biological Wastewater Treatment, Siroj Sobirovich Nurov, Makhsud Idrisovich Makhmudov, Uktam Farxodovich Mamirov Oct 2024

Research And Justification Of The Optimal Optical And Design Parameters Of The Activated Sludge Concentration Measuring Device For Biological Wastewater Treatment, Siroj Sobirovich Nurov, Makhsud Idrisovich Makhmudov, Uktam Farxodovich Mamirov

Chemical Technology, Control and Management

This article discusses the optimization of the design and optical parameters of an activated sludge concentration measuring device through experimental studies in laboratory conditions in order to improve the metrological characteristics of the meter. In particular, based on the optimality criteria, a more suitable type of photodetector for the meter is compared and selected; for the selected photodetector, the optimal distance with the emitter is determined, which is modern LEDs that emit light of a selective wavelength of radiation and under a certain degree of illumination. Based on the experiments conducted, it was determined that the optimal thickness between the …

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Development Of A Fuzzy Controller For Temperature Control In Phosphate Ore Beneficiation Process., D.P. Mukhitdinov, O.U. Sattarov, Sh.O. Annakulov Oct 2024

Development Of A Fuzzy Controller For Temperature Control In Phosphate Ore Beneficiation Process., D.P. Mukhitdinov, O.U. Sattarov, Sh.O. Annakulov

Chemical Technology, Control and Management

The paper presents the results of the obtained research, taking into account the dynamics of the thermal process in order to determine the parameters of the equipment and the choice of the optimal law of temperature regulation, the results of the process of temperature regulation in the process of roasting phosphate ores in the tower furnace are presented. The main purpose was to enhance the quality of phosphate ores and reduce energy consumption by using a fuzzy PID controller to regulate the temperature during the burning process of phosphate ores in a tower furnace. The parameters of the developed model …

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Fuzzy Models And Optimization By Distillation Units In The Aspen Hysys Software Environment, Nodirbek Rustambekovich Yusupbekov, Farux Tulkunovich Adilov, Janibek Alibekovich Aytbaev Oct 2024

Fuzzy Models And Optimization By Distillation Units In The Aspen Hysys Software Environment, Nodirbek Rustambekovich Yusupbekov, Farux Tulkunovich Adilov, Janibek Alibekovich Aytbaev

Chemical Technology, Control and Management

Developed fuzzy models and optimization of a deethanizer distillation column in the Aspen HYSYS software environment. This article presents the results of studies related to fuzzy modeling of distillation columns using the example of a typical deethanizer. A fuzzy computer model and optimization based on mathematical process modeling have been developed, which describes in detail technological processes using differential equations of energy transfer, material balance, hydraulics, and physicochemical kinetics inside the distillation column.

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Research On Data Collection And Transmission Technologies For Automatic Control Of High-Frequency Ozonators In Water Disinfection, P.I. Kalandarov, D.R. Ermanova, N.Zh. Duisenov, M.Zh. Koshkinbayeva, B.B. Shynzhigit, D.A. Abdullaeva, Kh.Kh. Abdullaev Oct 2024

Research On Data Collection And Transmission Technologies For Automatic Control Of High-Frequency Ozonators In Water Disinfection, P.I. Kalandarov, D.R. Ermanova, N.Zh. Duisenov, M.Zh. Koshkinbayeva, B.B. Shynzhigit, D.A. Abdullaeva, Kh.Kh. Abdullaev

Chemical Technology, Control and Management

This scientific work analyzes the research on data collection and transmission technologies for automatic control of high-frequency ozonators in water disinfection. The purpose of the study is to improve disinfection efficiency and optimize the system's operation by using IoT and artificial intelligence technologies in the control of ozonators. During the study, data collected by sensors were processed in real time through an IoT system and analyzed using artificial intelligence. Results showed that the efficiency of ozonator control increased by 25%, and ozone consumption was reduced by 20%. The use of a PID controller allowed for a 15% reduction in the …

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Analysis Of Standardization Services In An Organization And Standards Development Process Model, F.F. Fattoev, Sh.A. Turaev, A.A. Abdurakhmanov Oct 2024

Analysis Of Standardization Services In An Organization And Standards Development Process Model, F.F. Fattoev, Sh.A. Turaev, A.A. Abdurakhmanov

Chemical Technology, Control and Management

This article explores the economic significance of standardization within the industrial sector, highlighting its role in enhancing competitiveness and innovation in the Republic of Uzbekistan. Standardization, implemented across various levels (state, industry, and organizational), provides a framework for ensuring quality, safety, and technical consistency across production processes, products, and infrastructure. The article examines how standardization services, even if not separate organizational units, contribute to public interest by fostering consistency and productivity through the interdisciplinary technical coordination (TSC) system. Additionally, the research considers mathematical methods for developing standards, offering insights into how structured standardization can support automation, increase labor productivity, and …

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Development Of A Mathematical Model For An Intelligent Process Control System In Brewing Industry, A.N. Yusupbekov, M.Sh. Yusupov Oct 2024

Development Of A Mathematical Model For An Intelligent Process Control System In Brewing Industry, A.N. Yusupbekov, M.Sh. Yusupov

Chemical Technology, Control and Management

The paper deals with developing a mathematical model for a system of intelligent process control in brewing, focusing on the critical parameters of fermentation: temperature, pressure, and pH level. Mathematical models of the dynamics of the process of each of the parameters are given based on exponential dependencies, which allow for the description of the change of these values over time. The possibility of using PID regulators, neural networks, and fuzzy logic to control the process under study and the modeling that allows the optimization of beer production, improving its quality and reducing costs.

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Investigation Of Magnetic Circuits Of Measuring Transducers With A Distributed Longitudinal Excitation Winding, Javharbek Fayzullayev, Kamika Jurayeva, Usmon Mukhtorov Oct 2024

Investigation Of Magnetic Circuits Of Measuring Transducers With A Distributed Longitudinal Excitation Winding, Javharbek Fayzullayev, Kamika Jurayeva, Usmon Mukhtorov

Chemical Technology, Control and Management

The article examines the laws of distribution of magnetic voltage and magnetic flux in magnetic circuits of measuring transducers with distributed resistance parameters of long ferromagnetic rods and magnetic capacitance between them and a transverse distributed excitation winding using the example of a magnetic circuit of a new magnetically elastic force converter. It is established that in such magnetic circuits, the magnetic voltage changes its sign when passing through the section of the magnetic neutral, and the magnetic flux in the magnetic neutral has a maximum value, with a fixed value of the length of the distributed excitation winding, the …

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