Digital Commons Network^™

Analysis And Study Of The Content Of Chloride Salts In Oil, Natalia Evgenievna Sheina, Muborak Akramovna Mirshomilova

Technical science and innovation

The article addresses the critical issue of crude oil quality control, specifically focusing on the determination of chloride salts (sodium, calcium, and magnesium), which exert a destructive impact on processing equipment. The paper provides a detailed analysis of the adverse effects of salts, which lead to severe equipment corrosion, scaling, and a reduced yield of valuable oil fractions. The chemical principles and specific applications of two standardized methods for analyzing aqueous extracts according to GOST 21534-2021 and ASTM D3230 are described: indicator (argentometric and mercurimetric) and potentiometric titration. The experimental section presents the results of a comparative analysis of crude …

Mining-Geological And Technological Aspects Of The Development Of The Taushan Gold Deposit, Umid Azamjonovich Atakuziev, Aleksey Rashidovich Khasanov

Technical science and innovation

The paper presents a comprehensive study of the geological, geotechnical and geomechanical characteristics of the Taushan gold deposit that determine the selection of an efficient open-pit mining technology. The lithological structure, tectonic framework, ore body geometry and variation of rock mechanical properties with mining depth were analyzed. The results indicate that intensive fracturing, variable ore body thickness, complicated geological conditions and increased seismic activity significantly reduce the efficiency of conventional drilling-and-blasting mining methods. The application of surface miners as an alternative non-blasting mining technology is substantiated. Mechanical rock excavation provides higher mining selectivity, lower ore losses and dilution, reduced disturbance …

Engineering-Geological And Seismic Conditions Of Arid Territories, Mirabbas Mirsaatovich Zakirov, Golibjon Ernazar Ugli Ochilov, Dilshod Kalandarovich Begimkulov, Inobat Abduvakhidovna Agzamova, Temur Makhmarajabovich Khudoyberdiyev, Ayzada Qaunis Jetpisbaeva

Technical science and innovation

This article presents the results of an assessment of seismic intensity increments depending on the engineering and geological conditions of arid areas in the Muynak district, located in the current Aral Sea crisis zone. Natural and man-made factors shaping the geological environment are examined, including geological structure, lithological and stratigraphic composition, soil physical and mechanical properties, and hydrogeological conditions. Based on the analysis of engineering-geological data, normative classifications of soils according to seismic properties and field research materials, seismic microzoning of the territory was carried out, identifying areas with initial seismicity (“0”) and zones with an increase in seismic intensity …

Satellite-Based Detection And Preliminary Flux Estimation Of The 2024 Boysun Methane Blowout Event In Uzbekistan, Shomurod Bakhtiyor Ugli Turaev, Dilbar Shamurodovna Fazilova, Aziz Nigmanovich Kazakov

Technical science and innovation

Estimating accidental methane emissions from gas fields remains a difficult task, especially in remote mountainous areas where continuous ground-based observations are not available. This study examines the uncontrolled gas blowout that occurred in 2024 at the “Mustaqillikning 25-yilligi” gas-condensate field in Boysun district, Uzbekistan. Changes in methane content were analyzed using Sentinel-5P TROPOMI data for August–November 2024, processed in Google Earth Engine (GEE). The location of the accident site was refined using Sentinel-2 optical imagery, while ERA5 wind speed and direction data were applied for the preliminary calculation of methane flux. Based on the XCH₄ time series, four stages of …

Automatic +1 Diffraction Order Detection In Off-Axis Digital Holographic Interferometry Using An Energy-Based Spectral Model, Nigora Alimdjanovna Akbarova, Dilnoza Ibrokhim Kizi Abdulkhayeva

Technical science and innovation

This paper presents an automatic +1 diffraction order detection algorithm for off-axis digital holographic interferometry (DHI Manual spectral filtering is widely used to find out the desired order of diffraction in the Fourier domain in conventional digital holographic reconstruction. Nevertheless, this approach is very subjective and must be subject to expert guidance, thus, the reconstruction reproducibility and stability can often deteriorate. To address these limitations, this designed scheme constructs a spectral model utilizing energy-maximization as well as adaptive DC suppression and dynamic filter radius estimates. The algorithm itself can automatically observe the distribution of energy in the hologram spectrum and …

Analysis And Optimization Of Intelligent Control Of The Drying Process Under Uncertainty, Azizbek Nodirbekovich Yusupbekov, Marufjon Kobuljonovich Shodiev, Khusniddin Mamarasul Ugli Esonov

Technical science and innovation

This section proposes a multi-criteria Pareto-optimization algorithm, integrated with Herbert Simon's four-stage decision-making scheme (Intelligence–Design–Choice–Implementation) and an ANFIS-based adaptive controller, for simultaneously optimizing the mutually conflicting quality, energy, and time criteria of the wheat-drying process. The algorithm for constructing the set of Pareto-optimal solutions and selecting the compromise solution closest to the ideal point is presented step by step. The implementation of the ANFIS controller in the MATLAB/Simulink environment is comprehensively verified through a simulation block diagram, the Rule Viewer, the Surface Viewer, the training error-function graph, the RMSE convergence graph, and a learning-curve analysis. Training was carried out on …

On The Issue Of Developing Diagnostic Systems In Case Of Incompleteness Of Data, Amanulla Azizovich Kadirov, Shohijahon Ulugbek Ugli Akhmetov

Technical science and innovation

This paper addresses the problem of developing diagnostic systems for industrial equipment when initial failure data is incomplete or unavailable. An approach is proposed for generating synthetic data based on a pseudo-failure generator that implements stochastic modeling of degradation processes. A formalized algorithm for generating time-to-failure samples has been developed, including stages of failure physics analysis, statistical model selection, distribution parameterization, and simulation of operating conditions. The Weibull distribution is used as the base model, allowing for the consideration of various stages of the equipment’s life cycle. Additionally, factors that bring the synthetic data closer to real operating conditions are …

Evaluation Of The Metrological Characteristics Of An Ultrasonic Flowmeter For Water Resources, Makhsud Idrisovich Makhmudov, Uktam Farkhodovich Mamirov, Siroj Sobirovich Nurov

Technical science and innovation

This paper presents the results of evaluating the metrological characteristics of a developed ultrasonic flowmeter intended for measuring water flow in open channels. The study analyzes the main sources of measurement errors and classifies them into methodological, instrumental, additional, systematic, and random components. Experimental investigations were carried out to estimate the random and systematic errors under steady-state flow conditions. Using the least-squares method, the systematic error was separated into additive and multiplicative components, providing a basis for calibration and correction of the measurement results. The reliability of the developed measuring instrument was evaluated using the failure rate method based on …

Development Of An Experimental Stand For The Study Of The Directions Of Movement And Velocity Of Air Flows In The Pneumatic Channel Of The Final Aspiration Of The Muz-16 Air Sieve Separator, Hanna Borisovna Torgan, Zulfiya Kakhramonovna Ergasheva

Technical science and innovation

The article presents the results of experimental studies on the rheological properties of pasta dough obtained from various types of wheat flour (bakery highest grade, as well as durum varieties of Belarusian selection). The regularities of changes in the yield shear stress, plastic viscosity, and shear rate of the semi-finished product were studied depending on the key technological factors of extrusion: moisture content (0.28–0.335 kg/kg), temperature (25–55 °C), and discharge pressure (up to 88 · 10^-5 Pa). The operating principle and design features of the modernized pressing unit and die using special converging-diverging (confuser-diffuser) inserts (according to the patents …

Research On The Effectiveness Of Various Methods For Primary Processing Of Silkworm Cocoons, Doston Ishmukhammat Ugli Samandarov

Technical science and innovation

This article presents the results of experimental studies of the primary processing (killing) of silkworm pupae using existing technological methods, as well as three different combinations of infrared (IR) and ultrasound (US). A series of pilot studies was conducted in the laboratory of the Department of Service Technology at Tashkent State Technical University on nine cocoon samples using existing technological equipment and an experimental setup developed under project AL-8724053050 and based on the combined effects of infrared radiation and ultrasound. A comparative evaluation of the studied processing methods was conducted based on the degree of pupal killing, moth hatching, process …

Mathematical Modelling Of Nitrification And Denitrification Processes Based On Neuro-Fuzzy Bioreactor Models, Mirkhalil Agzamovich Ismailov, Boburbek Zokirjon Ugli Mannobjonov

Technical science and innovation

This paper presents the development and investigation of hybrid neural network and fuzzy models for the mathematical modelling of nitrification and denitrification processes in a biological wastewater treatment bioreactor. A comprehensive approach is proposed, integrating a mechanistic model of the ASM1/ASM2d type with neural networks (LSTM and Gaussian Process Regression), as well as a fuzzy control system based on an extended set of expert rules. A digital twin of the bioreactor was developed to allow for the prediction of the dynamic behavior of key parameters such as NH₄⁺, NO₃⁻, dissolved oxygen, etc. within a prediction range of 1 to 12 …

Investigation Of The Production Technology Of Environmentally Safe Urethane Oligomers Based On Local Raw Materials, Bakhtiyor Kudratovich Shaykulov, Dilafruza Ruziboevna Akbarova Gulboeva, Fayzulla Nurmuminovich Nurqulov

Technical science and innovation

This paper investigates the step-by-step poly condensation pathway for synthesizing environmentally friendly, non-isocyanate urethane oligomers derived from local and safe raw materials: urea and ethylene glycol. The influence of thermodynamic parameters on the target product yield was systematically evaluated to determine the optimum technological matrix. Specifically, a 1:2 reactant mass ratio, a stable stationary temperature of 150-155 °C, and a reaction duration of 2 hours under an inert nitrogen atmosphere resulted in a sustainable and reproducible yield of 72%. Thermal degradation and competitive side-product condensations were activated above 160 °C, leading to a sharp drop in overall chemical efficiency. The …

Evaluation Of Level Measurement Uncertainty For Three Types Of Laser Level Meters Using The Gum Methodology: Calculated Uncertainty Budgets, Uncertainty Profile, And Hardware Component Requirements, Lazizbek Furkatjanovich Saidoripov, Barat Makhmudovich Akhmedov

Technical science and innovation

A methodology is presented for evaluating the uncertainty of liquid petroleum product level measurements using laser level meters based on different measurands’ informative parameters: propagation time, phase difference, and image coordinates. Based on analytical expressions for error components and a traceability chain to the national length standard, calculated uncertainty budgets are developed in accordance with JCGM 100 for time-of-flight, phase-based, and laser–television level meters. Under the assumed input conditions, the expanded uncertainties (k = 2) are 1.66, 0.73, and 1.02 mm, respectively. For the laser–television level meter budget, the Gaussian approximation is verified using the Monte Carlo method (JCGM 101): …

A Techno-Economic Analysis Of An Integrated Solar-Thermal Power Plant In Yemen, Abdulrazzak Akroot, Lina J. Talib, Isam E. Yousif, Miqdam T. Chaichan, Hasanain A. Abdul Wahhab

Polytechnic Journal

Interest in combined heat and solar power (CHP) systems has grown due to the rising demand for sustainable energy with low carbon emissions. One effective technical solution is the use of a parabolic trough solar collector (PTC) in combination with a Rankine cycle (RC) heat engine. The solar-powered Rankine cycle (SPRC) system is a renewable energy technology that offers high efficiency and clean energy output. This study investigates the techno-economic performance of an SPRC system designed for electricity generation in Aden, Yemen, a location with substantial solar energy potential. The proposed system includes parabolic trough collectors, a thermal storage tank, …

A Scoping Review And Bibliometric Analysis Of Health Information Resilience, Wulan Suciska, Hartoyo Hartoyo, Anna Gustina Zainal, Dhanik Sulistyarini

Media Kesehatan Masyarakat Indonesia

The proliferation of digital health information has generated growing scholarly interest in understanding resilience within health information practices. This article examines the development of research on information resilience and introduces the concept of health information resilience using the ScoRBA method conducted in accordance with the PRISMA protocol and analyzed using the PAGER framework. A literature search was performed in the Scopus database to identify publications published between 2000 and 2025, and VOSviewer was employed to visualize the research landscape. The findings indicate that studies specifically addressing health information resilience remain limited in both scope and volume. The concept of health …

Preventive Care, Regenerative Biology, And Diagnostic Innovation In Dentomaxillofacial Science: An Editorial Review, Muhammad Ikbal, H. Hasanuddin, Acing H. Mude, Nisrina E. Nasrun, Carolina Stevanie, Erni Marlina, Muhammad Ruslin

Journal of Dentomaxillofacial Science

Objective: To synthesize studies in the Journal of Dentomaxillofacial Science (JDMFS, Vol. 11, Iss. 2, 2026) into a coherent account of the field's clinical, biological and public health directions.
Methods: A qualitative thematic synthesis of 13 articles (original articles, systematic reviews, and a case report) published in this issue was performed. The studies were grouped into four domains: public health and patient-centered care, biomaterials, regenerative science and antimicrobial strategies, clinical, surgical and diagnostic innovations, and molecular oncology and rare pathologies. For each, we summarized the knowledge, identified contributions, and outlined research priorities.
Results: Caries risk assessment was the strongest predictor …

Decentralized Renewable Energy And Sustainability By Integrating Solar Ovens Into Urban Living, Nuno Soares Domingues

Journal of Environmental Science and Sustainable Development

Urban households account for a substantial share of global energy consumption and greenhouse gas emissions, with domestic cooking representing an often-overlooked component of residential energy demand. Low-cost solar cooking technologies offer a promising pathway towards urban decarbonization by harnessing renewable solar energy while reducing dependence on grid electricity and promoting circular resource use. This study evaluates the contribution of two experimentally developed low-cost solar box ovens to urban sustainability under Mediterranean climatic conditions in Lisbon, Portugal. A recycled cardboard prototype and a timber-based prototype were assessed through controlled outdoor experiments involving thermal performance, cooking capability, energy savings, and environmental evaluation. …

Good Governance In The Concept Of Climate Justice: Decarbonisation Policies In Economic Considerations Of Losses And Sacrifices, Daryanti Daryanti, Albertus Sentot Sudarwanto, Erna Dyah Kusumawati, Rosita Candrakirana

Journal of Environmental Science and Sustainable Development

Projections of losses resulting from the impacts of climate change in Indonesia are estimated to reach USD 30.5 million, affecting four key sectors: agriculture, water supply, health, and the maritime sector. This study shows that good governance based on climate justice in the implementation of decarbonization policies is the most important factor in avoiding long-term economic losses caused by the adverse impacts of climate change or investing in climate resilience. This study employed a normative methodology using a statutory approach to examine efforts related to climate change mitigation and adaptation. The findings of this research indicate that regulations in Indonesia, …

Climate Change Mitigation And Forest Conservation: A Sdg-Aligned Framework For Malaysia, Hui Nee Au Yong, Chuan Chew Foo, Maryam Kalhoro, Irfan Rashdi

Journal of Environmental Science and Sustainable Development

Climate change and biodiversity loss are interlinked global crises that require integrated governance approaches, particularly in biodiversity-rich countries such as Malaysia. This study develops and empirically tests a climate biodiversity sustainable development goal (SDGs) nexus model that integrates forest governance, carbon sequestration, Indigenous Ecological Knowledge (IEK), and sustainable practices to explain climate mitigation and biodiversity conservation outcomes. Survey data were collected from 412 respondents across Peninsular Malaysia, Sabah, and Sarawak using Partial Least Squares Structural Equation Modelling (PLS-SEM) to test the hypothesised relationships. The analysis examines direct, mediating, and moderating relationships among governance, social, technological, and policy factors. Forest governance …

Fabrication And In Vitro Evaluation Of A Triphala–Chitosan Nanocomposite Gtr Membrane With Multifunctional Regenerative Potential, Tanmayi Mishra, Priyangha P.T

Journal of Dentomaxillofacial Science

Objective: This study addressed the need for a multifunctional, naturally derived guided tissue regeneration (GTR) membrane by fabricating a Triphala–chitosan nanoparticle-based membrane and evaluating its physicochemical and in vitro biological properties for periodontal regeneration. Triphala provides antioxidant, anti-inflammatory, and antimicrobial effects, while chitosan nanoparticles improve structural stability and cell interactions, offering a novel multifunctional regenerative membrane.
Materials and Methods: An aqueous Triphala extract was prepared, and chitosan nanoparticles were synthesised by ionic gelation. Triphala extract (3% v/v) was incorporated into the nanoparticle suspension (pH 4.5–5.5), cast into membranes, air-dried, neutralised with 1% NaOH, and conditioned. The membranes were characterised by …

Secondary School Teachers’ Perceptions Of The Risk And Protective Factors Associated With A School Shooting, Emily M. Hudson, Susana Verdinelli

Journal of Social, Behavioral, and Health Sciences

School shootings have devastating impacts on those directly or indirectly exposed to them. Most school shooters are current or former students. Teachers can play a crucial role in intervening, but their support for intervention strategies can vary depending on their perceptions of the underlying associated factors. This generic qualitative study used semi-structured interviews to explore 10 secondary education teachers’ perceptions of the risk and protective factors associated with the perpetration of a school shooting. Teachers identified four interrelated domains shaping the risks for and protections against school shooting perpetration: emotional stability and support, the influence of social networks, the normalization …

Effect Of Waste Cooking Oil And Tapioca Starch On Energy Content And Combustion Performance Of Coconut Shell-Rice Husk Briquettes, Satworo Adiwidodo, Wirawan Wirawan, Kris Witono, Moh. Hartono, Asrori Asrori, Fauzan Baananto, Suliono Suliono, Syahrul Mubarok, Norhafana Binti Mohamed

Journal of Mechanical Engineering Science and Technology (JMEST)

Agricultural waste, such as coconut shells and rice husks, is widely utilized as solid fuel. Tapioca starch serves as the binder, while waste cooking oil (WCO) is used as an additive. Briquette performance is influenced by the type of biomass, binder, and additives used. However, the individual and interactive effects of WCO and tapioca starch on the performance of coconut shell-rice husk briquettes remain insufficiently established. This research focused on evaluating the effects of WCO and tapioca starch on calorific value (CV)  and mass consumption rate. The briquettes' base composition consisted of 75% coconut shell charcoal and 25% rice husk …

Integrated Evaluation Of Rooftop Solar Power Generation System Performance In Tropical Climate Using Geometric, Electrical, And Environmental Parameters, Ayu N. Sari, Ilham R. Fadhlurrahman, Surya Pinanggi, Ermanu A. Hakim, Haneef Nouval Alannibras Humaidi

Journal of Mechanical Engineering Science and Technology (JMEST)

The increasing demand for electrical energy in the commercial sector has encouraged the utilization of rooftop Photovoltaic (PV) systems as a sustainable energy solution in tropical climate regions. However, rooftop PV performance is influenced by the interaction of geometric, electrical, and environmental parameters, which may affect system efficiency. This study analyzes the performance of a rooftop PV system under tropical climate conditions using PVsyst simulation and actual monitoring data collected over 30 days. The research was conducted on an on-grid rooftop PV system with a capacity of approximately 135 kWp, consisting of 217 photovoltaic modules and three inverters with a …

Artificial Intelligence, Machine Learning, And Deep Learning Approaches For Attention-Deficit/Hyperactivity Disorder Diagnosis: Protocol For A Scoping Review, Benedict Onochie Ibe, Amir Aly, Shaymaa S Al-Juboori, Emmanuel Ifeachor, Rohit Shankar

School of Engineering, Computing and Mathematics

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) affects over 366 million adults and 139 million children worldwide, yet diagnosis remains fundamentally subjective, relying on clinical interviews, behavioral observations, and rating scales that yield inconsistent results across practitioners and settings. Artificial intelligence (AI), machine learning (ML), and deep learning (DL) offer a paradigm shift toward objective, data-driven diagnosis by detecting complex patterns across neuroimaging, electrophysiology, and digital biomarkers that elude conventional assessment. Although AI-based ADHD research has grown exponentially, no comprehensive synthesis examines the full spectrum of data modalities, validation practices, and clinical translation readiness. This gap limits our understanding of which approaches are …

Butte Priority Soils Operable Unit (Bpsou) Silver Bow Creek Conservation Area (Sbcca) Operations And Maintenance (O&M) Plan, Revision October 2026, Josh Bryson

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Developing A Digital Facility Management Framework For Enhancing Operation And Maintenance Of Public Parks In Egypt, Alaa Ezzat, Alia Amer, Yasser M. El Sayed

HBRC Journal

Public parks in Cairo represent important urban assets, however, their operation and maintenance (O&M) face many challenges due to fragmented information, reactive maintenance practices, organizational constraints, and limited digital integration. Digital Facility Management discipline still lacks the tailored framework that adequately addresses the operational needs of public parks in Egypt with all its specific details. This study develops an integrated digital FM framework for improving the efficiency of the management process of public parks. A four-phase methodology was adopted, comprising a literature review, framework development, technical system specification, and expert assessment. The proposed framework integrates BIM, COBie, CMMS, IoT technologies, …

Renewable Research Frontiers In The Weight-Loss Evaluation Of 4-(4-Chlorobenzylideneamino) Antipyrine As An Eco-Friendly Corrosion Inhibitor For Mild Steel In Hcl, Mohanad Muzahem Khalaf, A. M. Mustafa, Ayad Abbood Abdulhasan

AUIQ Conference Proceedings

This study evaluates 4-(4-Chlorobenzylideneamino) antipyrine as an organic corrosion inhibitor for mild steel in 1.0 M HCl using weight-loss measurements and SEM surface analysis. The inhibitor produced a clear concentration-dependent protection effect: the corrosion rate decreased from 0.452 mpy for the uninhibited solution to 0.014 mpy at 500 ppm, while the inhibition efficiency increased from 41.84% at 100 ppm to 96.90% at 500 ppm. The adsorption data followed the Langmuir adsorption isotherm, indicating the formation of a protective adsorbed layer on the steel surface. The calculated Δ Gads value of approximately -29.78 kJ mol-1 suggests spontaneous mixed adsorption involving both …

Wind Energy Pathways Toward Sdg 7 And Sdg 13 For Affordable Clean Energy And Climate Action, Ahmed Jamal Jasim

AUIQ Conference Proceedings

Wind energy has emerged as one of the most cost-competitive and rapidly scalable pathways toward achieving the United Nations Sustainable Development Goal 7 (SDG 7: Affordable and Clean Energy) and SDG 13 (SDG 13: Climate Action). This review article provides a comprehensive analysis of wind energy technologies, innovation pathways, system integration challenges, and future research frontiers within the dual framework of energy access and climate change mitigation. It covers the full spectrum of wind turbine technologies from established onshore horizontal-axis wind turbines (HAWTs) to cutting-edge offshore floating platforms, vertical-axis turbines, and airborne wind energy systems alongside digitalization strategies including artificial …

Battery Energy Storage Systems For Renewable Research Frontiers, Mohanad Muzahem Khalaf, A. M. Mustafa, Ayad Abbood Abdulhasan, Hussain Zuhailawati

AUIQ Conference Proceedings

Battery energy storage systems (BESS) have emerged as a cornerstone technology enabling the large-scale integration of variable renewable energy sources and the transformation of conventional electricity networks into intelligent, resilient, and low-carbon energy systems. This article provides a structured review of BESS within the science-energy (sci-energy) nexus by organizing the discussion around five analytical axes: battery chemistry families, battery management and estimation strategies, thermal and safety engineering, renewable-grid integration pathways, and sustainability and circular-economy issues. The review covers mature lithium-ion systems together with sodium-ion, solid-state, and redox flow batteries, and also examines battery management systems, thermal management, state-of-charge and state-of-health …

Where Shoppers Look First: How Navigation Bar Design Shapes Visual Attention Online, James Coyle, Linh Nguyen, Lee Hillman

Atlantic Marketing Journal

Abstract

Despite the crucial role that a website navigation bar can play in affecting consumer behavior, there has been a lack of theory-driven studies to investigate how to most effectively design navigation bars. Grounded in cognitive fit theory and visual attention theory, this study investigates how the effects of navigation bar design and content can influence visual processing of an unfamiliar online retailer’s website. A total of 40 subjects participated in a controlled experiment in which we gathered eye-tracking data. We find that navigation bar placement strongly affects how quickly participants locate the navigation bar: an unexpected placement more than …