Search
927 articles for “optimization”
-
Improving Prestressed Concrete Box Girders Using Polymer Composites: Experimental Findings and Analysis
Abstract: Prestressed concrete box girder bridges exhibit complex structural behavior due to various loading scenarios. Extensive studies, both experimental and numerical, have helped advance their use in engineering. The spatial stress in prestressed concrete box girder bridges, especially during construction and service phases, has been analyzed using shell cells, which provide more accurate tensile stress data than beam cells. The deck with the numerous hat section was evaluated in the current …
Published in International Journal of Polymer Science and Engineering · Vol. 10, Issue 2, 2024 · pp. 6–11 Read article
-
Review of Heuristic Rules and Complex Column Arrangements for the Sequencing of Multicomponent Distillation Column
Abstract: An ordinary distillation column separates a binary feed into two products, but multi-component mixtures need more complex separation sequences. For a ternary mixture of component ABC, the separation can follow a direct sequence (A/BC, B/C) or an indirect sequence (AB/C, A/B), in which the direct sequence is preferred due to the lower operating cost. The heuristic rules based sequencing can be adapted for multi-component complex feed. As the number of …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 1, 2025 Read article
-
Evaluations of Treatment Performance of Tangerine and Cashew Leaves in TPH Removal from Contaminated Swampy and Clay Soils
Abstract: This study evaluates the effectiveness of two plant-based treatments, Tangerine (Citrus reticulata) and Cashew (Anacardium occidentale) leaves, in the bioremediation of Total Petroleum Hydrocarbons (TPH) from polluted swampy soil. The performance of these treatments was assessed over an 84-day period using 100g of each treatment. The results demonstrated significant degradation of TPH, with Tangerine leaf showing a slight edge over Cashew leaf in the remediation process of crude oil- contaminated …
Published in International Journal of Green Chemistry · Vol. 11, Issue 2, 2025 · pp. 29–34 Read article
-
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
-
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
-
Analytical Study of Ceramic Compositions: Lamination and Fracture Toughness
Abstract: This study investigates the characteristics and fabrication techniques of laminated ceramic composites, focusing on various glass-ceramic systems, including alumina, BaTiO3/Al2O3, and LiO2‐ZrO2‐SiO2‐Al2O3 (LZSA). The inherent brittleness of ceramics, attributed to surface flaws and their limited toughness, necessitates the development of layered structures to enhance mechanical reliability. Layered ceramics demonstrate improved fracture toughness, crucial for applications in aerospace, biomedicine, and military armor. Techniques such as tape casting, electrophoretic deposition, and advanced …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 38–44 Read article
-
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
-
Chemical and Geotechnical Evaluation of Steel Slag for Sustainable Construction Practices
Abstract: Steel slag, a byproduct of the steelmaking process, is generated at an estimated 160 kg per ton ofsteel production. This study explores the chemical and mineral compositions of steel slag,highlighting key compounds such as SiO2, CaO, Fe2O3, Al2O3, and MnO, along with mineralcomponents like C3S, C2S, C4AF, and free-CaO. The research emphasizes the extensive applications ofsteel slag in cement-based products, ceramics, road paving, and concrete admixtures. Specifically, itevaluates the incorporation …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 28–37 Read article
-
The Role of Autonomous Vehicles in Alleviating Urban Traffic Congestion and Reducing Emissions
Abstract: Abstract As urban areas continue to expand, the dual challenges of traffic congestion and vehicle emissions pose significant threats to the quality of urban life, public health, and environmental sustainability. In this context, autonomous vehicles (AVs) represent a revolutionary shift in transportation technology, with the potential to transform urban mobility systems. This study explores the multifaceted role of AVs in alleviating urban traffic congestion and reducing emissions, employing a combination …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 10, Issue 2, 2024 · pp. 26–30 Read article
-
Evaluating the Impact of Intelligent Traffic Management Systems on Urban Congestion and Emission Levels
Abstract: AbstractUrban congestion and vehicle emissions represent critical challenges in densely populated citiesworldwide, posing risks to both travel efficiency and environmental health. As urbanizationintensifies, traditional traffic management approaches often fall short of alleviating congestion,resulting in longer commute times, increased fuel consumption, and higher pollutant emissions. Thisstudy evaluates the effectiveness of Intelligent Traffic Management Systems (ITMS), an advancedapproach leveraging adaptive traffic control technologies, in reducing both congestion and emissions.Through a combination of …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 10, Issue 2, 2024 · pp. 15–19 Read article
-
Groundwater Exploitation in the Base Complex of Ado Ekiti: Sustainability Issues and Future Directions
Abstract: Abstract Water is an essential and irreplaceable resource necessary for sustaining life, and in a diverse and populous country like Nigeria, the sustainable management of groundwater resources is of critical importance. This paper explores the current groundwater utilization practices in Ado-Ekiti, a rapidly growing urban area, and presents strategies aimed at ensuring the long-term sustainability of these vital resources. The study analyzes several key factors affecting groundwater resources, including geological …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 2, 2024 · pp. 21–27 Read article
-
Novel Strategies for Sustainable Structural Engineering : Eco-Friendly Materials, Energy Efficiency, and Life-Cycle Assessment
Abstract: Abstract Sustainability has become a pivotal focus in structural engineering, driven by the growing global awareness of environmental challenges and the urgent need to reduce the carbon footprint of the construction industry. This paper explores how sustainable practices are being integrated into structural engineering using green materials, energy-efficient design, and life-cycle assessment (LCA). Structural engineers are now playing a vital role in designing buildings and infrastructure that not only meet …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 20–24 Read article
-
Influence of GGBFS Content and Curing Methods on the Compressive Strength of Coconut Shell Concrete: A Mix Design Approach for Sustainable Construction
Abstract: AbstractThis study explores the development of a coconut shell concrete (CSC) mix design using theACI211.298 guidelines, targeting a compressive strength of 20 MPa for structural applications. Dueto the organic and flaky properties of coconut shell (CS), achieving the initial target strength of 40MPa was challenging, necessitating a focus on optimizing mix proportions for a 20 MPa goal. Theresearch investigates three different mixes with varying percentages of ground granulated blastfurnace slag …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 9–14 Read article
-
Surface Modification and Performance Evaluation of Biologically Degummed Lady’s Finger Bast Fibers
Abstract: This research aims to investigate the physicomechanical characteristics of biologically degummed lady’s finger bast fiber (LFF) and to walk through the entire process of turning LFF into a commercial cellulosic fiber that can be used globally in a variety of textile applications, including carpets, oil and liquid absorption, packaging, basic textile products, coarse ornamental textile products, geo-textiles, and reinforcements in polymer matrix composites. This article describes the application of different …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 1, 2025 · pp. 21–34 Read article
-
A Review of Examining the Mechanical Properties of Natural Fiber Reinforced Polymer Composites for the Automotive Sector
Abstract: The need for lightweight, sustainable materials has increased due to the growing global population, environmental issues, and the fast growth of the automotive sector. Because of their excellent mechanical and physical qualities as well as their environmentally beneficial character, natural fiber-reinforced composites have become a viable option. Due to their ability to blend strength with lightweight properties, these composites are gaining increasing popularity across various industries, including aerospace, automotive, sports, …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 1, 2025 · pp. 1–7 Read article
-
Enhancing Low Voltage Ride-Through Capability in Wind Energy Conversion Systems Using Phasor
Abstract: This paper presents a comprehensive strategy for enhancing the low voltage ride-through capability in wind energy conversion systems by integrating phasor measurement units, Type-III wind turbine systems, and flexible AC transmission systems devices. The research focuses on double fed induction generators-based wind turbines, which constitute a significant portion of wind energy systems but face challenges in maintaining grid stability during voltage sags. As wind turbines are directly connected to the …
Published in International Journal of Electrical Power System and Technology · Vol. 10, Issue 2, 2024 · pp. 15–40 Read article
-
Comparative Design and Performance Analysis of Axial Flow Compressor Blades Using Various Materials
Abstract: This study presents a comprehensive design and performance analysis of axial flow compressor blades using various materials to improve efficiency, durability, and performance. Axial flow compressors are critical components in aircraft engines and industrial gas turbines, and the choice of blade material significantly impacts their functionality under extreme operational conditions. The analysis explores several materials, including traditional alloys, advanced composites, and high-temperature resistant metals, evaluating their mechanical properties, thermal stability, …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 2, 2024 · pp. 7–15 Read article
-
Effect of Glass Fiber, Carbon Fiber, and Hybrid Form on Tensile Properties of Pa66/Pp Polymer Composites
Abstract: Mechanical loadings are applied to polymer materials, which are used in mechanical engineering applications. Usually, photopolymer fails to meet them, so some modification must be done to the polymer material. Adding fillers and fibers to the polymer will strengthen it by the polymer blending method. In this investigation, mechanical properties of glass fibers and carbon fibers and combinations of glass and carbon fiber are added to polymer composites. Considerable effort …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 2, 2024 · pp. 27–33 Read article
-
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
-
Enhancing Learning With Nature Inspired Design In Schools
Abstract: This research explores the potential of nature-inspired design in enhancing the learning environment across schools. By integrating environmental elements and principles into school architecture and interiors, the study aims to investigate the impact on students’ cognitive, emotional, and social development. Through a comprehensive analysis of existing research, case studies of successful nature- inspired schools, and empirical data collection, this paper seeks to establish a strong correlation between biophilic design and …
Published in International Journal of Town Planning and Management · Vol. 10, Issue 2, 2024 · pp. 18–27 Read article