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872 articles for “parameters”
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Kinetic Modifications in Polymers under Cryogenic Stress: A Thermochemical Study
Abstract: This study explores the kinetic modifications in polymers subjected to cryogenic stress, focusing on the thermochemical behavior and structural changes that occur at low temperatures. Polymers, when exposed to cryogenic conditions, exhibit distinct molecular rearrangements, influencing their mechanical properties and thermal stability. The investigation involves characterizing these polymers using advanced spectroscopic and thermal analysis techniques to identify alterations in crystallinity, molecular weight distribution, and glass transition temperature. By examining the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Thermal Dynamics and Kinetic Modelling of Cryogenic Fuels in Aerospace and IndustrialApplications
Abstract: Cryogenic fuels are critical for high-speed aerospace and industrial applications, where efficient handling, storage, and usage are paramount for performance and safety. This study explores the thermal dynamics and kinetic modeling of cryogenic fuels, focusing on liquid handling systems and propellant technologies. Utilizing computational fluid dynamics (CFD) analysis, the research evaluates the behavior of cryogenic liquids within insulated vessels under extreme temperature conditions, identifying key parameters that influence thermal stability …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Computation of Compressor Components Failure and Maintenance Characteristics
Abstract: The computation of the compressor components failure and maintenance characteristics as related to the major parts are described in this research. The research projected the root cause of the compressor components failure as well as projected the necessary measure to reduce such occurrence in the gas compressor operation. The parameters of the Mean time between failure, failure rate, downtime maintenance, reliability, unreliability, and availability were commutated respect to the number …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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A Comparative Study of Ceramic Foam Filtration Methods in Metal Casting
Abstract: Ceramic foam filtration has emerged as a revolutionary technology in the metal casting industry, significantly enhancing the quality of cast products by effectively removing inclusions and impurities from molten metal. This study provides a comprehensive examination of the mechanisms underlying ceramic foam filtration, focusing on the interactions between the molten metal and the ceramic filter material. Various types of ceramic foams, including alumina, zirconia, and silicon carbide, are analyzed for …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 21–27 Read article
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Performance Evaluation of Geopolymer Masonry Units Using Fly Ash and GGBFS: Dimensionality, Density, Water Absorption, and Compressive Strength Analysis
Abstract: AbstractThis study investigates the production, properties, and performance of geopolymer masonry units,utilizing Class F fly ash and Ground Granulated Blast Furnace Slag (GGBFS) as primary binders.These binders were activated using an 8M alkaline solution, with the materials mixed alongsidemanufactured sand (M-sand) as the fine aggregate. The binder-to-aggregate ratio was maintained at1:1, while the alkaline solution-to-binder ratio was kept at 0.2. Various geopolymer masonry units,including geopolymer bricks (GPB), solid blocks (GPSB), …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 26–32 Read article
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Design and Analysis of MacPherson Suspension System and Enhanced Suspension Systems
Abstract: Customers look for safety and comfort, thus they are crucial to the success of car marketing. The McPherson suspension system, one of the most popular shock absorbers, has a history of excellent performance. Its unexpected demise and sudden fracturing, however, made it clear that the system needs thoughtful adjustments. The most important components of the shock absorber system that require improvement are the strut mount and spring. Because of the …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 2, 2024 · pp. 13–26 Read article
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Exploring the Ettingshausen Effect: Magnetothermoelectric Transport in Graphene Nanoribbons and Iron-Carbon Alloys
Abstract: This study investigates the magnetothermoelectric effects, specifically the Ettingshausen effect, in graphene nanoribbons and iron-carbon alloys and explores their implications in plasma physics through self-similar modeling. The Ettingshausen effect, which involves the generation of a transverse heat current from a longitudinal charge current in the presence of a magnetic field, is analyzed using the Landauer-Büttiker formalism and nonequilibrium Green's function methods. Results reveal that in graphene nanoribbons, the Ettingshausen effect …
Published in International Journal of Energetic Materials · Vol. 10, Issue 1, 2024 · pp. 31–35 Read article
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Kinetic Model for Production of Carbon(iv)oxide (CO2) from Brewers Spent Grain Using Anaerobic Digester
Abstract: In this research paper, investigation studies were carried out to determine which model best predicts the amount of using the linear, power, growth rate decay, and non-elementary rate models, the kinetics of the biogas produced under the impact of biodegradation were explored. Carbon(iv)oxide was produced as a fraction of the biogas acquired from the experimental conditions. Either of the linear, power, growth rate decay, and non-elementary rate models can be …
Published in International Journal of Energetic Materials · Vol. 10, Issue 1, 2024 · pp. 17–31 Read article
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Advancements and Innovations in Superalloy CoatingTechniques: A Comprehensive Review of ECAP andHigh-Temperature Aluminization
Abstract: Equal Channel Angular Pressing (ECAP) is a pivotal technique within Severe Plastic Deformation (SPD), widely recognized for its exceptional capability to refine grain structures in metals and alloys down to the micro- and nanometer scales. This review offers an in-depth examination of the ECAP process, highlighting its effectiveness in generating ultra-fine grain microstructures that significantly enhance the mechanical properties of materials, such as strength, hardness, and ductility. We provide a …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 16–20 Read article
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Impact of External Contextual Factors on Construction Project Performance
Abstract: The construction industry is inherently complex, influenced by a myriad of external contextualized factors that impact project performance. Based on a thorough analysis provided in the paper, this abstract offers a thorough summary of these factors. The study categorizes external contextualized factors into four main dimensions: cost, time, scope, and dominant area of influence. Factors, such as “Availability of workforce/material/equipment,” “Land Acquisition,” “Government Policy Changes,” and “Legal disputes between Project …
Published in International Journal of Town Planning and Management · Vol. 10, Issue 2, 2024 · pp. 28–47 Read article
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Transforming Waste Plastics Through Pyrolysis: A Sustainable Solution for Polymer Resource Recovery
Abstract: The global accumulation of plastic waste, particularly polymers like polyethylene (PE), presents amajor environmental challenge, demanding innovative solutions for effective management. This studyfocuses on the chemical process of pyrolysis as a promising approach for polymer resource recoveryand environmental sustainability. Pyrolysis involves the thermal decomposition of plastic waste intovaluable products, such as liquid fuels, gases, and solid residues. Key parameters, such as temperature,heating rate, and residence time were optimized to enhance …
Published in International Journal of Polymer Science and Engineering · Vol. 10, Issue 2, 2024 · pp. 12–19 Read article
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Analyzing Atmospheric Particulate Matter in PortHarcourt and Omoku, Nigeria, Using Artificial NeuralNetworks and Fuzzy Logic
Abstract: Port Harcourt and Omoku, two densely populated towns in Rivers State, Nigeria, are hubs of industrial, commercial, and residential activities, characterized by the presence of oil and gas industries, educational institutions, large markets, and, in the case of Omoku, access to free electric power supply. These activities contribute to environmental degradation through industrial effluents, domestic waste, automobile emissions, gas flaring, and biomass burning, which release aerosols that form harmful particulates …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 16–52 Read article
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Optimized Fault Current Prediction for DFIG-Based Wind Turbines Using Type-I Fuzzy Logic Controller
Abstract: The increasing integration of Doubly-Fed Induction Generator (DFIG)-based wind turbines into modern power grids requires robust fault detection and prediction mechanisms to ensure stable and reliable operation. However, accurately predicting fault currents in such systems is challenging due to the nonlinear dynamics involved. This study presents an optimized fault current prediction framework using a Type-I Fuzzy Logic Controller (FLC) to address these challenges. The proposed approach effectively models the uncertainties …
Published in International Journal of Analog Integrated Circuits · Vol. 10, Issue 2, 2024 · pp. 41–50 Read article
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Structural Behavior and Fire Resistance of Shallow Steel-Concrete Composite Decks
Abstract: This study investigates the structural behavior and fire resistance of Shallow Steel-Beam-Concrete Composite (SSCC) decks, focusing on the influence of various Steel-Concrete (SC) bonding techniques. SSCC decks combine steel beams with concrete slabs, offering structural efficiency and durability under significant loads. The effectiveness of SC bonding methods is evaluated by comparing experimental results to Full Composite Action (FCA) simulations. Fire resistance in shallow floors, particularly SlimFlor systems, is analyzed using …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 Read article
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Nanosensors in Agriculture Field: A Study
Abstract: The agricultural sector faces numerous challenges, including the need for increased productivity, concentrated environmental influence, and improved food security due to a growing global population. Traditional agricultural practices frequently fall short in addressing these issues, foremost due to suboptimal crop yields and inefficient resource management. One of the pressing problems is the difficulty in real-time monitoring of soil health, plant growth, and pest infestations, which can impede timely decision-making and …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 2, 2024 · pp. 12–22 Read article
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An Investigation of Properties Nanoparticles Reinforced Thermoplastic Nanocomposites
Abstract: Nanoparticles and nanocomposites find widespread uses in a variety of fields, such as building materials, architecture, optics, food packaging, optoelectronics, semiconductors, medicine, textiles, cosmetics, and catalysis. Compared to their microparticle cousins, polymeric nanocomposites-a unique family of materials-perform better because they blend organic polymers with inorganic nanoparticles. As a result, they ought to improve the domain of engineering applications. Inorganic nanoparticles can significantly alter the properties of a polymer matrix. Flexible …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 2, 2024 · pp. 54–64 Read article
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The Trend of Oil Produced from the Application of Mechano-Thermal Concepts of Extraction: The Characteristics of the Physiochemical Properties
Abstract: The agricultural production process generates a significant amount of waste in the form of by-products and unused resources. Chemical engineers have a significant position on the globe, resulting in the production of a wide range of products for pharmaceutical, chemical, food and other industrial as well as domestic utilization. Ineffective management of agricultural waste can cause serious harm to the environment and cause a waste of resources. As chemical production …
Published in International Journal of Agrochemistry · Vol. 10, Issue 1, 2024 · pp. 1–7 Read article
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Mechanical, Thermal, and Electrical Properties of Poly(ether-ester)-Based Thermoplastic Elastomer Composites Filled with ZnO Nanoparticles
Abstract: A highly helpful technique to create novel polymeric materials with ordered and customized features is blending two or more immiscible polymers. The outstanding balance between processability and physical characteristics of thermoplastic polyester elastomers, particularly when using hydrogenated styrene–butadiene copolymer, makes them appealing materials for a variety of applications, including the automotive industry. New opportunities for tailored flexible composites with improved mechanical and chemical properties are made possible by reinforced polymers …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 2, 2024 · pp. 33–42 Read article
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ANALYSIS OF LATERAL PLACEMENT AND OVERTAKING BEHAVIOR OF VEHICLES
Abstract: The present research work analyzes the overtaking behavior and lateral placement of motorized vehicles under heterogeneous traffic conditions. The data for the present research work was collected at two four-lane divided highway sections. Video recording was done to collect lateral placement data and overtaking behavior of vehicles was observed using moving car method. The lateral placement data was tried to fit with normal distribution. But the study found that, it …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 10, Issue 2, 2024 · pp. 9–14 Read article
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BAYESIAN ANALYSIS OF BIRD OVOMUCOID: INFERRING EVOLUTIONARY DYNAMICS AND PHYLOGENETIC RELATIONSHIPS.
Abstract: Objective: Ovomucoid is a serine protease inhibitor discovered in bird eggs that not only protects embryos but also has phylogenetic significance due to its potential usage as a molecular marker. They are glycoproteins that have antibacterial efficacy because they inhibit bacterial proteolytic enzymes that are essential for microbiological development. This study makes use of DNA sequence data to rebuild evolutionary connections among bird species. Methods: Over the past decade, the …
Published in International Journal of Animal Biotechnology and Applications · Vol. 10, Issue 1, 2024 · pp. 1–10 Read article