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Articles 106021 - 106050 of 5156587

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Echocardiographic Alterations After Administration Of Azithromycin In Donkeys: An Experimental Crossover Study, Mohamed Marzok, Maged El-Ashker, Mahmoud Kandeel, Adel Almubarak, Khalid Alkhodair, Alshimaa Farag, Hussam Ibrahim, Sabry El-Khodery, Hussein Babiker Dec 2025

Echocardiographic Alterations After Administration Of Azithromycin In Donkeys: An Experimental Crossover Study, Mohamed Marzok, Maged El-Ashker, Mahmoud Kandeel, Adel Almubarak, Khalid Alkhodair, Alshimaa Farag, Hussam Ibrahim, Sabry El-Khodery, Hussein Babiker

The Thai Journal of Veterinary Medicine

Cardiotoxicity and impairment of cardiac function are mostly diagnosed by echocardiography and based on objective metrics of cardiac function. The aim of the present study is to investigate the effect of azithromycin on the echocardiographic characteristics in healthy donkeys. Ten healthy donkeys were enrolled in a prospective crossover study. The study included two groups: (1) a placebo (normal saline, NaCl 0.9%), and (2) azithromycin (at a dose of 5 mg/kg body weight). A 2.0-3.9 MHz phased-array transducer was used for echocardiographic examination. Echocardiographic examinations were performed for donkeys before treatment (T0) and at 15, 30, 60, 90, 120, 180, and …

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Feline Conjunctivitis In Sleman Region Indonesia: Clinical Characteristics, Bacteriological Isolation Of Staphylococcus Aureus, And Antimicrobial Susceptibility, Agung Budi Pramono, Fatkhanudin Aziz, Faiz Ihsanul Kamil, Soedarmanto Indarjulianto, Ida Tjahajati Dec 2025

Feline Conjunctivitis In Sleman Region Indonesia: Clinical Characteristics, Bacteriological Isolation Of Staphylococcus Aureus, And Antimicrobial Susceptibility, Agung Budi Pramono, Fatkhanudin Aziz, Faiz Ihsanul Kamil, Soedarmanto Indarjulianto, Ida Tjahajati

The Thai Journal of Veterinary Medicine

Conjunctivitis is a common ocular condition in domestic cats, often associated with Staphylococcus aureus. Accurate detection and resistance profiling are essential for appropriate therapy. This study aimed to characterize clinical features of feline conjunctivitis, identify S. aureus using phenotypic and genotypic methods, and assess its antibiotic susceptibility. Twenty conjunctivitis-suspected cats in Sleman, Indonesia, underwent clinical examination and conjunctival swabbing. Bacterial isolates were cultured on Mannitol Salt Agar and identified by Gram stain, catalase, coagulase, biochemical tests, and PCR targeting 23S rRNA. Susceptibility to gentamicin, chloramphenicol, ciprofloxacin, and amoxicillin was tested by Kirby-Bauer. Predominant signs included excessive tearing (95%), hyperemia …

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Decolonizing Knowledge As Epistemic Justice: Key Conceptual Tendencies From The Global South, Richard Sambaiga Dec 2025

Decolonizing Knowledge As Epistemic Justice: Key Conceptual Tendencies From The Global South, Richard Sambaiga

Tanzania Journal of Sociology

The project of decolonising knowledge has gained renewed prominence as scholars confront enduring epistemic injustices and structural inequalities embedded in global systems of knowledge production. Situated within long-standing anticolonial and postcolonial intellectual struggles, this article interrogates key conceptual dilemmas that continue to shape contemporary debates on decoloniality. Adopting a commentary orientation, it examines what it means to decolonise knowledge by engaging the historical foundations of decolonial thought alongside contemporary critiques that expose the persistence of epistemic hierarchies within modern academic institutions. The article argues that, without conceptual clarity, the decolonial project risks becoming analytically misguided and politically misdirected, potentially reproducing …

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Theorizing ‘Magwangala’ As An Unorthodox Livelihood In Geita, Tanzania, Albert Tibaijuka Dec 2025

Theorizing ‘Magwangala’ As An Unorthodox Livelihood In Geita, Tanzania, Albert Tibaijuka

Tanzania Journal of Sociology

The increasing contestation of Magwangala as a livelihood in Geita, Tanzania, invokes a scholarly desire to further the constitution of the term beyond its traditional constructs. Following the present framing of magwangala as a disruptive, hazardous, contentious, and risky engagement; including the sanctions against it and the disparaging remarks upsurging the oppression of its actors, an attempt to advance its comprehension is of paramount importance. Given the nature of Magwangala business and the evident ramifications, its contestation is inevitable and unlikely to yield a uniform understanding. This paper, therefore, draws from the grueling life experiences endured by magwangala dealers in …

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The Mwanza Declaration: Magufuli, Street Vendors And The Right To The City In Tanzania, Sabatho Nyamsenda, Ng’Wanza Kamata Dec 2025

The Mwanza Declaration: Magufuli, Street Vendors And The Right To The City In Tanzania, Sabatho Nyamsenda, Ng’Wanza Kamata

Tanzania Journal of Sociology

This article seeks to understand the continuity and change in relations between the state and street vendors under the late President of Tanzania, John Pombe Magufuli (November 2015–March 2021). Focusing on the concessions made by the state to street vendors under the Magufuli regime, the article diverts from the standard characterisation of such gains as an expedient gift from an authoritarian leader to conceptualising them as a product of street vendors’ struggles against eviction from the city centre. It examines the key tenets of the Mwanza Declaration on the Right to the City as well as the contestations around its …

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Patient And Systemic Barriers To Cancer Care: Implications For Delayed Prostate Cancer Detection In Tanzania, Jane Senga John Dec 2025

Patient And Systemic Barriers To Cancer Care: Implications For Delayed Prostate Cancer Detection In Tanzania, Jane Senga John

Tanzania Journal of Sociology

Prostate cancer is a leading cause of cancer-related mortality among men in Tanzania, with most cases diagnosed at advanced stages. This study explores the interplay of patient-level and systemic barriers that contribute to delayed prostate cancer detection within a tertiary hospital context. Conducted at Bugando Medical Centre in Mwanza, the research employed in-depth interviews with 25 purposefully selected participants, including patients, oncologists, spouses and traditional healers. Thematic analysis was used and guided by Paul Farmer’s structural violence model and Courtenay’s theory of gender and health to interpret how cultural, economic, and structural factors shape health-seeking behaviours. Findings reveal that delays …

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Influence Of Household Characteristics And Incident Setting On Child Abuse Cases In Shinyanga Region., Amani Mapamba Dec 2025

Influence Of Household Characteristics And Incident Setting On Child Abuse Cases In Shinyanga Region., Amani Mapamba

Tanzania Journal of Sociology

This study investigates the influence of household characteristics and incident settings on child abuse cases in Shinyanga Region, Tanzania. Grounded in Rational Choice Theory, the study assumes that perpetrators make calculated decisions influenced by household structure and contextual settings. Utilizing a quantitative research approach, cross sectional secondary data were collected from 401 reported child abuse cases at Shinyanga Regional Referral Hospital between July 2020 and April 2023. Binary logistic regression was used to analyze the predictive influence of variables such as relationship to household head, history of abuse in the household, perpetrator identity, and location of the incident. Findings revealed …

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Effects Of Corporal Punishments On Students’ Learning: A Case Of Selected Secondary Schools In Tanzania., Adenias Ishabisa Dec 2025

Effects Of Corporal Punishments On Students’ Learning: A Case Of Selected Secondary Schools In Tanzania., Adenias Ishabisa

Tanzania Journal of Sociology

The paper presents the practice of corporal punishment on students’ learning in Tanzania secondary schools. Specifically, the study examine how corporal punishment affects students’ learning. The study adopted a qualitative research approach with multiple embedded case study design. Data were collected from 76 participants selected purposefully from Morogoro Municipal, Mvomero District, Sumbawanga Municipal, and Nkasi District. The participants were students, teachers, Regional Educational Officers, District Secondary Educational Officers, and school board members. In-depth interviews, focus group discussions, observation, and documentary reviews were applied to collect data while thematic analysis was used to address the research question. The findings revealed that …

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Two Members Of The Editorial Board Of Journal Electrochemistry, Kai Wu Elected As An Academician Of The Chinese Academy Of Engineering And Yi Cui A Foreign Academician Of The Chinese Academy Of Sciences, Editorial Office Of J.Electrochem. Dec 2025

Two Members Of The Editorial Board Of Journal Electrochemistry, Kai Wu Elected As An Academician Of The Chinese Academy Of Engineering And Yi Cui A Foreign Academician Of The Chinese Academy Of Sciences, Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

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Electrochemical Characterization And Modulation Of Biological Processes, Yue-Qi Li, Wei-Hua Huang, De-Chen Jiang, Bao-Hong Liu, Bin Su, Yang Tian, Jing-Juan Xu, Ping Yu, Feng Zhao, Huang-Xian Ju, Jing-Hong Li Dec 2025

Electrochemical Characterization And Modulation Of Biological Processes, Yue-Qi Li, Wei-Hua Huang, De-Chen Jiang, Bao-Hong Liu, Bin Su, Yang Tian, Jing-Juan Xu, Ping Yu, Feng Zhao, Huang-Xian Ju, Jing-Hong Li

Journal of Electrochemistry

Electrochemical processes lie at the core of biological function, governing energy transduction, metabolic flux, and molecular signaling. Recent advances in electrochemical science now allow these processes to be probed and controlled with unprecedented spatial, temporal, and chemical resolution. In this review, we present an integrated framework that progresses from fundamental mechanisms to analytical technologies and functional modulation. We begin by outlining electron transfer pathways in mitochondrial respiration, microbial extracellular electron transfer, and DNA- and protein-based charge conduction, followed by the principles of photon-electron conversion in photosynthesis and the central role of redox equilibrium in coordinating cellular responses. We then highlight …

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A Novel Electrolyte Pyridine Additive For Enhancing Cycle Life Of Lithium-Ion Batteries, Peng-Cheng Wang, Ding-Chang Li, Jun-Tao Li, Guang-Bo Lu, Shi-Wen Wang Dec 2025

A Novel Electrolyte Pyridine Additive For Enhancing Cycle Life Of Lithium-Ion Batteries, Peng-Cheng Wang, Ding-Chang Li, Jun-Tao Li, Guang-Bo Lu, Shi-Wen Wang

Journal of Electrochemistry

Lithium-ion (Li-ion) battery using a graphite (Gr.) anode and a lithium iron phosphate (LiFePO4, LFP) cathode (Gr.||LFP) has been widespread in energy storage. To match the warranty period of energy storage systems, the lifespan of this kind of Li-ion battery, not only under room temperature but also under relatively high temperature, is critical. Exploration of functional electrolyte additive provides an efficient approach to address this issue. This study reports the usage of pyridine (Py) as a new electrolyte functional additive for Gr.||LFP. In the first cycle, it was found that Py can be reduced before ethylene carbonate and …

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Journal Of Electrochemistry Officially Indexed By Leading Oa Databases Oarl And Coaj, Editorial Office Of J.Electrochem. Dec 2025

Journal Of Electrochemistry Officially Indexed By Leading Oa Databases Oarl And Coaj, Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

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Feature Column Of Journal Of Electrochemistry Nominated For 2025 Top 10 Famous Columns Of Fujian Provincial Newspapers And Periodicals, Editorial Office Of J.Electrochem. Dec 2025

Feature Column Of Journal Of Electrochemistry Nominated For 2025 Top 10 Famous Columns Of Fujian Provincial Newspapers And Periodicals, Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

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Comparative Effects Of Gamma Irradiation And Chemical Treatments On Superficial Scald And Quality Of ‘Granny Smith’ Apples, Francisco E. Loayza, Michelle Tu, Hagop S. Atamian, Anuradha Prakash Dec 2025

Comparative Effects Of Gamma Irradiation And Chemical Treatments On Superficial Scald And Quality Of ‘Granny Smith’ Apples, Francisco E. Loayza, Michelle Tu, Hagop S. Atamian, Anuradha Prakash

Food Science Faculty Articles and Research

Fresh produce is highly perishable, necessitating various postharvest treatments to minimize quality loss, extend shelf-life, and facilitate international trade. This study investigated the potential of a single low-dose gamma irradiation treatment as an alternative to commercially used chemical treatments for protecting ‘Granny Smith’ apples against insect pests and postharvest disorders. ‘Granny Smith’ apples harvested in 2019 and 2020 were treated with gamma irradiation at doses of 240 or 860 Gray (Gy) or with commercial chemical applications of 1-methylcyclopropene (1-MCP), diphenylamine (DPA), or methyl bromide (MeBr). The impact on fruit quality, physiology, and the development of postharvest disorders was evaluated after …

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Pressure Field Estimation From 2d-Piv Measurements: A Case Study Of Fish Suction-Feeding, Jensine C. Coggin, Duvall Dickerson-Evans, Erin E. Hackett, Roi Gurka Dec 2025

Pressure Field Estimation From 2d-Piv Measurements: A Case Study Of Fish Suction-Feeding, Jensine C. Coggin, Duvall Dickerson-Evans, Erin E. Hackett, Roi Gurka

Physics and Engineering Science

Particle image velocimetry (PIV) flow measurements are common practice in laboratory settings in a wide variety of fields involving fluid dynamics, including biology, physics, engineering, and medicine. Dynamic fluid pressure is a notoriously difficult property to measure non-intrusively, yet its variation is a driving flow force and critical to model correctly. Techniques have been developed to estimate the pressure from velocity and velocity gradient measurements. Here, we highlight a novel application of boundary conditions when applying such pressure estimation techniques based on two-dimensional PIV data; the novel method is especially relevant to problems with complex boundary conditions. As such, it …

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Parameter Identification Of A Pi Controller For A Wind Energy Conversion System Based On Dfig, Mariam Hesham, Dina S. M. Osheba, Mahmoud M. Khater Dec 2025

Parameter Identification Of A Pi Controller For A Wind Energy Conversion System Based On Dfig, Mariam Hesham, Dina S. M. Osheba, Mahmoud M. Khater

Mansoura Engineering Journal

In this work, three methods are proposed to identify parameters of PI controllers used for wind energy conversion systems based on DFIG. Mathematical model of generator and grid side system is depicted. Three tuning methods; bode-plot, pole-placement, and MATLAB tuner are used for grid side and rotor side converter controllers’ design. Wind turbine system with PI controller parameters obtained using the mentioned method is investigated via MATLAB/SIMULINK under three different scenarios. The wind system is subjected to step wind speed change, random wind speed, and sever symmetrical voltage dip in the grid. The handled comparison illustrates that the pole-placement tuning …

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State Of California Cannabis Reporting, University Of Mississippi – National Center For Cannabis Research And Education Dec 2025

State Of California Cannabis Reporting, University Of Mississippi – National Center For Cannabis Research And Education

California

No abstract provided.

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How Gas Flow And Distance From The Laser Focus Affects Powder Deposition Focus Concentration In A Lens Machine, Max A. Siefert Dec 2025

How Gas Flow And Distance From The Laser Focus Affects Powder Deposition Focus Concentration In A Lens Machine, Max A. Siefert

Mechanical Engineering and Materials Science Independent Study

Additive manufacturing via Direct Layer Deposition (DLD) is what the Laser Net Engineered Shaping or LENS machine is used to create components using metallic powders and a high powdered laser in the Flores Lab. In the lab this machine is used to create metallic alloys with high degrees of accuracy, but it has been difficult to get the accuracy required. By changing two variables, focus height and carrier gas flow rate, the concentration of the powder in a certain radius can be changed. The dot concentration and diameter were gotten using image analysis. It was found the LPM has a …

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A Pouch Of Trouble For The Pancreas: Unmasking A Case Of Lemmel Syndrome, Aravindharaj Tamilselvan, Sabari Ramesh Dec 2025

A Pouch Of Trouble For The Pancreas: Unmasking A Case Of Lemmel Syndrome, Aravindharaj Tamilselvan, Sabari Ramesh

Manipal Journal of Medical Sciences

Lemmel syndrome is a rare cause of biliary and pancreatic obstruction arising from periampullary duodenal diverticula. We report a 72-year-old woman presenting with acute pancreatitis, biliary dilation, and a periampullary diverticulum causing distal CBD compression. Multimodality imaging, including CT and MRCP, established the diagnosis. Although ERCP was advised, the patient declined and improved with conservative management. Early recognition of this uncommon entity is essential to prevent recurrent pancreatobiliary complications.

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Improvement Of Technology And Control And Management Systems Of The Plant Oil Refination Process, Elyor Samadov Dec 2025

Improvement Of Technology And Control And Management Systems Of The Plant Oil Refination Process, Elyor Samadov

Chemical Technology, Control and Management

The article examines modern approaches to modernizing vegetable oil refining processes from the perspective of increasing energy efficiency, environmental friendliness, and final product quality. Traditional and innovative technologies are analyzed, with a focus on the implementation of membrane filtration, automated control systems, heat exchange complexes, and renewable energy sources. It has been shown that the use of intelligent control systems, high-precision membrane filters, and heat regeneration allows for a 25% reduction in energy consumption, a 20% reduction in greenhouse gas emissions, and a significant improvement in acidity, color, and impurity content in the product. The obtained results show the effectiveness …

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Analog Systems Of Physical Quantities And Their Graph Models In Determining The Parameters Of Mechatronic Modules, Temurbek Omonboevich Rakhimov, Elmira Eshmurod Qizi Raxmanova, Guzal Khujaniyazova Dec 2025

Analog Systems Of Physical Quantities And Their Graph Models In Determining The Parameters Of Mechatronic Modules, Temurbek Omonboevich Rakhimov, Elmira Eshmurod Qizi Raxmanova, Guzal Khujaniyazova

Chemical Technology, Control and Management

This article is dedicated to the analogy systems of physical quantities and their graph models in determining the parameters of mechatronic modules. It presents the general sets and fundamental laws of analogy systems of physical quantities and their elements for determining the parameters of mechatronic modules. Based on the general sets and fundamental laws of analogy systems of physical quantities and their elements, principles have been developed for mechatronic modules with a heterogeneous structure consisting of electrical, magnetic, and mechanical parts. In these modules, the field as a form of matter exists, forming the basis for developing mathematical models to …

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Improving Self-Diagnostic Methods Of Flow Measurement Systems Based On Artificial Intelligence, Elbek Ortikov Dec 2025

Improving Self-Diagnostic Methods Of Flow Measurement Systems Based On Artificial Intelligence, Elbek Ortikov

Chemical Technology, Control and Management

The article examines methods for improving self-diagnostics of consumption measurement systems based on artificial intelligence in the context of industry digitalization and the development of cyber-physical systems. It has been shown that traditional flow meters used to measure the flow rate of liquids and gases are subject to mechanical, hydraulic, electronic, and hidden failures, which reduce the accuracy and reliability of measurements. A justification for the need to transition from classical maintenance methods to intelligent self-control methods that ensure the detection of anomalies and hidden malfunctions in real time is presented. A multi-level architecture of intelligent self-diagnosis is proposed, including …

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Performance Assessment Of Operators Under Digital Simulator-Based Training In Automated Industrial Systems, Kamola Abdullaeva Dec 2025

Performance Assessment Of Operators Under Digital Simulator-Based Training In Automated Industrial Systems, Kamola Abdullaeva

Chemical Technology, Control and Management

This article proposes a comprehensive approach to training process operators, based on computer simulators integrated with digital twins, SCADA/DCS systems, real production data, and artificial intelligence algorithms. This approach is particularly relevant given the increased requirements for safety, productivity, and reliability of industrial facilities, as human factors are often the main cause of accidents (up to 60-80% of cases). The architecture of the simulator complex is designed to accurately emulate steady-state, transient, and pre-emergency operating modes of equipment, which are not achievable under actual production conditions. The experiment compared the training effectiveness of two groups of operators: one that used …

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Review And Analysis Of Methods And Techniques For Refining Vegetable Oils, Umidjon Ruziev, Marufjon K. Shodiev Dec 2025

Review And Analysis Of Methods And Techniques For Refining Vegetable Oils, Umidjon Ruziev, Marufjon K. Shodiev

Chemical Technology, Control and Management

This article provides a comparative analysis of the main methods of vegetable oil refining: alkaline (chemical), physical, and combined. It examines the stages of the technological process and the applicability of each method for various types of oils (palm, soybean, cottonseed, sunflower, rapeseed, etc.). Attention is paid to energy consumption at the stages of neutralization, washing, drying, and deodorization, as well as the impact of equipment performance on specific energy consumption. Approximate calculations of the distribution of thermal and electrical energy during the processing of 1 kg of oil are provided. It is noted that physical refining, despite the high …

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Expansion Of The Functionality Of Discrete Fiber-Optic Liquid Level Sensors, Azimjon Mamadaliyevich Khusanov, Yuriy Gennadyevich Shipulin Dec 2025

Expansion Of The Functionality Of Discrete Fiber-Optic Liquid Level Sensors, Azimjon Mamadaliyevich Khusanov, Yuriy Gennadyevich Shipulin

Chemical Technology, Control and Management

The article examines the problems and prospects of creating discrete fiber-optic liquid level gauges. Functional diagrams of single-channel and multi-channel discrete fiber-optic liquid level meters are presented. Examining the challenges of keeping this system running continuously reveals that sustaining its required reliability necessitates replacing malfunctioning measurement systems with operational ones. Investigations into differential equation models demonstrate that system recovery and failure events occur independently and follow a Poisson distribution pattern.

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Investigation Of Nonlinear Magnetic Circuits Of Measuring Transducers With A Special Parameter Distribution Structure, Javhar Sulton O'G'Li Fayzullayev Dec 2025

Investigation Of Nonlinear Magnetic Circuits Of Measuring Transducers With A Special Parameter Distribution Structure, Javhar Sulton O'G'Li Fayzullayev

Chemical Technology, Control and Management

The article proposes a new analytical method for investigating nonlinear magnetic circuits with a special structure of parameter distribution. The method is based on introducing into the system of nonlinear differential equations of such circuits the condition that the second derivative of the magnetic flux along the length of the circuit is equal to zero, as well as on the assumption that one of the geometric parameters of the studied magnetic circuit – the size of the air gap between the ferromagnetic rods, their thickness, width, or the linear value of the number of turns of the distributed excitation winding …

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Comprehensive Mechatronic Design Methodology For 6-Dof Stationary Lower Limb Rehabilitation Exoskeleton Robot With Safety-Integrated Control Architecture, Javlonbek Rakhmatillaev Mr., Nodirbek Kimsanboyev Mr., Umidjon Takabaev Mr., Zafar Juraev3 Dr. Dec 2025

Comprehensive Mechatronic Design Methodology For 6-Dof Stationary Lower Limb Rehabilitation Exoskeleton Robot With Safety-Integrated Control Architecture, Javlonbek Rakhmatillaev Mr., Nodirbek Kimsanboyev Mr., Umidjon Takabaev Mr., Zafar Juraev3 Dr.

Chemical Technology, Control and Management

This paper presents the mechatronic design of a proposed six-degree-of-freedom (6-DOF) stationary lower limb rehabilitation exoskeleton (SLLRE) robot, developed through a comprehensive mechatronic design methodology that includes mechanical design, actuator and sensor selection, and the development of a control structure based on a safety-oriented control approach. The proposed 6-DOF SLLRE mechanical design introduces a comprehensive mechanical structure comprising bilateral hip, knee, and ankle joints, degrees of freedom, joint ranges of motion, human parameters for rehabilitation training, as well as the frames and structural elements of the proposed system. Furthermore, the selection of appropriate sensors, actuators, and control architecture for the …

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Design Of A Fuzzy Set-Point Tracking Controller Based On The State-Dependent Control Characteristics Of Fuzzy Logic And Pid For Temperature Control Systems In Electrical Equipment, Rahim Mammadzada Dec 2025

Design Of A Fuzzy Set-Point Tracking Controller Based On The State-Dependent Control Characteristics Of Fuzzy Logic And Pid For Temperature Control Systems In Electrical Equipment, Rahim Mammadzada

Chemical Technology, Control and Management

This paper presents a Fuzzy-SPT (Fuzzy Set-Point Tracking) controller designed to combine the strengths of FLC (Fuzzy Logic Control) and PID (Proportional-Integral-Derivative) control while mitigating their limitations across varying operating conditions. Inspired by state-dependent reasoning but implemented within a single controller, the method uses internal logic to adapt the control effort across different operating regions. FLC handles rapid changes and nonlinear transients, enabling fast system response without overshoot, while PID-like integral action is activated when the FLC reaches steady state or enters a threshold region near the set point, eliminating residual errors and maintaining stable performance. By applying each behavior …

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Empirical Analysis Of Machine Learning Models For Predicting Equipment Failures Using Iot Sensor Data, Yusuf Shodiyevich Avazov Dec 2025

Empirical Analysis Of Machine Learning Models For Predicting Equipment Failures Using Iot Sensor Data, Yusuf Shodiyevich Avazov

Chemical Technology, Control and Management

This article examines the problem of detecting and predicting industrial equipment faults using IoT sensor data through machine learning techniques. Sensor readings such as temperature, vibration, pressure, voltage, and current, as well as FFT-based features, were statistically analyzed. Class imbalance and low signal informativeness were identified as key factors limiting model accuracy. Results obtained from Logistic Regression, Random Forest, and XGBoost models were comparatively evaluated, showing that when ROC-AUC values remain around 0.5, distinguishing fault and non-fault states becomes challenging. Correlation and feature-importance analyses confirmed the absence of strong dominant indicators. The findings highlight the need to improve sensor architecture …

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Current Trends In Industrial Gas Furnace Control And Monitoring Systems, Utkir Uktam O'Gli Kholmanov Dec 2025

Current Trends In Industrial Gas Furnace Control And Monitoring Systems, Utkir Uktam O'Gli Kholmanov

Chemical Technology, Control and Management

This paper presents a critical review of modern control methods applied to industrial gas-fired furnaces. Conventional PID controllers and their advanced modifications, including Advanced Process Control (APC) and cascade control schemes, are analyzed alongside Model Predictive Control (MPC) approaches. In addition, intelligent control algorithms—such as fuzzy logic and neuro-fuzzy systems (Fuzzy, ANFIS)—are examined. The study also considers advanced sensing technologies, including Tunable Diode Laser Absorption Spectroscopy (TDLAS), acoustic pyrometry, and infrared pyrometers, as well as digital twins and CFD-based modeling techniques. Particular attention is given to a comparative evaluation of control strategies based on key performance criteria, including energy efficiency, …

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