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397 articles for “Stability”
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Synthesis and Characterization of Polymer-Based Organic–Inorganic Hybrid Materials viaSol–Gel Processing: A Review of Gelatin–Silica, Gelatin–Silica–Titania and HPMA-Based Systems
Abstract: Organic–inorganic hybrid materials have emerged as a versatile class of advanced materials that integrate the flexibility and functionality of organic polymers with the thermal, mechanical, and chemical stability of inorganic networks. Among the available fabrication routes, the sol–gel process has gained considerable attention because of its simplicity, low processing temperature, compositional flexibility, and ability to tailor material properties at the molecular level. The present review discusses the synthesis and characterization …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 2, 2026 Read article
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Mechanistic Insights into Solvent-Controlled Stepwise and Concerted Cycloadditions of the Propadienyl Cation with Oxoamides: A DFT Study
Abstract: AbstractOxazoles constitute an important class of heterocycles with widespread applications in medicinal chemistry and materials science, yet the mechanistic features governing their formation via cationic cycloaddition reactions remain incompletely understood. In this work, we present a comprehensive density functional theory (DFT) investigation into the reaction between the propadienyl cation and oxoamides as a model system for oxazole ring formation. Using the CAM-B3LYP/6–31+G(d,p) level of theory, we systematically compare gas-phase reactivity …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 8–17 Read article
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EROSION OF UNDERLYING SOIL
Abstract: Abstract : To protect underlying soil erosion on which foundation base is provided like apron provided in water retaining structure like dam, weir etc. In flood zone area this apron is provided at foundation base of building, near village which is situated near bank of river underlying soil erosion will be prevented when apron is provided. Near bank of river (village situated) for protection of village near bank of river …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 11, Issue 2, 2025 · pp. 20–25 Read article
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Aromaticity-Guided Synthesis and Reactivity of Heterocyclic Compounds: Structural Insights and Applications
Abstract: The concept of aromaticity serves as a fundamental framework for understanding the structural and electronic characteristics of heterocyclic compounds, which play a crucial role in modern synthetic chemistry. Aromatic compounds, characterized by cyclic planar systems with delocalized π-electrons, follow the Hückel rule, conferring significant stability to heterocyclic structures. The incorporation of heteroatoms, such as nitrogen, oxygen, and sulphur, within these rings profoundly influences electron distribution, molecular reactivity, and synthetic pathways. …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 2, 2026 · pp. 1–7 Read article
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Advanced Geotechnical Analysis of Soil-Structure Interaction in High-Rise Building Foundations
Abstract: AbstractThe stability of high-rise buildings is fundamentally influenced by the interaction between theirfoundations and the underlying soil. This study provides a comprehensive analysis of soil-structureinteraction (SSI) with a particular emphasis on settlement behavior, load distribution, and seismicresilience. By utilizing finite element modeling (FEM) and advanced soil mechanics principles, theresearch evaluates various foundation systems, including deep pile foundations, mat foundations, andhybrid configurations, to determine their effectiveness in diverse geotechnical conditions. The …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 11, Issue 1, 2025 · pp. 49–54 Read article
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Assessment of Dam
Abstract: Stability of slope is the dominant parameter for construction of Dam. Slope gives bottom width. Morebottom width gives stability of dam. Normally, the bottom width of dam is taken as twice times of topwidth of dam (at least). Since maximum thrust of water is acting at bottom of dam (wh), where w = Unitweight of water (1000 Kg/m3), h = depth of water in meter, hence bottom width is taken …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2025, Issue 1, 2025 · pp. 11–19 Read article
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Cross Sectional Area of Column
Abstract: Abstract In structural engineering, columns play a critical role in transferring loads from beams to thefoundation. The load applied on a beam is transmitted to the column, resulting in an upward reactiveforce. This upward pressure necessitates the determination of the column’s cross-sectional area basedon direct stress analysis to ensure that the structure can safely bear the imposed loads. Additionally,an end moment develops at the joint between the beam and the …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 14–20 Read article
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Excitation System, Proportional and Integral Controls of a Synchronous Generator for Reducing Adverse Impacts to Power System from Voltage Fluctuations
Abstract: The project analyzes the voltage fluctuations caused by any disturbance in a power system and minimizes the oscillations by controlling the excitement field using a feedback control loop. Adequate numbers of journal papers and literature materials were researched and reviewed to understand the principles of generator excitation and investigate various control systems which can be worked upon to keep the voltage output stabilized. It is known that Automatic Voltage Regulator …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Assessment of Foundation for Pier
Abstract: AbstractThe design and assessment of pier foundations are crucial due to the substantial loads they mustsupport. Piers are subjected to significant structural and dynamic loads, requiring a robustfoundation system to ensure stability and prevent excessive settlement or failure. A mat foundation istypically selected to distribute these heavy loads over a large area, minimizing pressure on theunderlying soil. The bearing capacity is assumed to be based on the presence of a …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article
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Chemical Treatments to Modify the Surface of Agricultural Waste Fibers as a Green Substitute to Cellulosic Fiber Treatment
Abstract: Scientists are searching for natural elements that can decompose naturally and replace synthetic materials that have not been biodegradable for a while. The automotive, space, furniture, construction, medical, and packaging industries are among the many that use synthetic composite materials. This has resulted in growing interest in biodegradable bio composites. In recent years, a variety of stem fibers, including jute, flax, hemp, and kenaf, have been employed to replace the …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 1, 2025 · pp. 35–45 Read article
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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
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Effect of Groundnut Shell Ash Lime on Characteristics of Soil
Abstract: Soil is one of the foremost commonly encountered materials in engineering. However black cotton soils are excellent for agriculture purpose, they are not so good for laying durable roads and construction of buildings. Soil stabilization is additionally how to treat a soil to wish care of, alter or improve the performance of soil. A test examination is apportioned to ascertain the effect of Ground Nut Shell Ash mixed with Lime …
Published in International Journal of Landscape Planning and Architecture · Vol. 7, Issue 1, 2021 · pp. 15–20 Read article
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Synthesis, characterization of Schiff base and its pH metrically studies of transition metal complexes of N'-(3, 4-dihydroxybenzylidene) isonicotinohydrazide.
Abstract: Schiff reaction is one of the versatile reaction widely used in organic synthesis focused on the discovery & development of isoniazide Schiff base derivative N’(3,4-Dihydroxy benzylidene isonicotinohydrazide) have been reported in presence of 0.01g molecular iodine catalyst stirring give fast product & good yield. The synthesized compound is characterized by FTIR & H-NMR analysis. For the development of coordination chemistry Schiff base & metal ion having played most important role, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 39–47 Read article
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ASSESSMENT OF FOUNDATION SIZE AND REINFORCEMENT USED FOR FOUNDATION BASE OF PIER FOR STEEL GIRDER RAILWAY BRIDGE.
Abstract: The analysis of foundation size and reinforcement is conducted with respect to the overall load exerted on the foundation base. This includes considering the load imposed by trains, the weight of the girder, and the pier. To ensure the structural integrity and stability of the foundation base, M25 grade concrete and Fe 500 grade steel are utilized. In order to counteract bending forces, 20 φ diameter steel bars are incorporated …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 9, Issue 1, 2023 · pp. 13–18 Read article
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An Investigation of Physico-mechanical Characterizations of Recycled Cellulose Fiber and Glass Fiber-polypropylene Hybrid Composite
Abstract: In the field of marine engineering design, polymeric composites reinforced with natural fibers are extensively used. The results of this study demonstrate that these properties can be enhanced by adding glass fiber (GF) to recycled cellulose fiber (rCF) plastic composites. The performance of rCF and rCF/GF hybrid polypropylene (PP) composites is being studied in the current experimental effort. On the tensile behavior and impact strength of composites containing 30 wt% …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 9, Issue 1, 2023 · pp. 1–10 Read article
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Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 Read article
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Evaluation of Deformation Behavior of a Structural Pipe Bracket Under Static Loading Using Finite-Element Analysis
Abstract: This study presents a comprehensive structural integrity assessment and comparative static response analysis of an industrial support bracket subjected to varying mechanical loading conditions using the finite element method (FEM). Industrial brackets are essential load-bearing components in mechanical and structural systems, where adequate stiffness, strength, and dimensional stability are critical for ensuring operational reliability and structural safety. The primary objective of this investigation is to evaluate the influence of material …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 12, Issue 2, 2026 · pp. 1–12 Read article
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Recent Advances in the Development and Performance Optimization of Advanced Metallic Alloys
Abstract: The continuous demand for high-performance materials in aerospace, automotive, energy, and biomedical industries has accelerated research and development in advanced metallic alloys. Metallurgy and alloy design play a crucial role in achieving superior mechanical, thermal, and chemical properties while maintaining cost efficiency and sustainability. This study presents a comprehensive overview of recent advances in metallic alloy development, focusing on novel alloying strategies, microstructural control, and performance optimization techniques. Emphasis is …
Published in International Journal of Metallurgy and Alloys · Vol. 12, Issue 1, 2026 · pp. 1–6 Read article
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Chemical Engineering Aspects of Carrageenan Hydrogel–Silver Composite Systems: Synthesis, Structure, and Performance
Abstract: This review presents a green chemistry-driven strategy for the synthesis, design, and chemical engineering of carrageenan-based hydrogel matrices embedded with green-synthesized silver nanoparticles (AgNPs) for advanced biomedical and pharmaceutical applications. Silver nanoparticles were fabricated through an environmentally benign route employing natural biopolymeric reducing and stabilizing agents, eliminating the need for hazardous chemical reagents and minimizing ecological impact. The synthesized AgNPs were subsequently incorporated into κ-carrageenan hydrogel networks under controlled physicochemical …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 7–27 Read article
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Chemical Engineering Aspects of Carrageenan Hydrogel–Silver Composite Systems: Synthesis, Structure, and Performance
Abstract: This review presents a green chemistry–driven strategy for the synthesis, design, and chemical engineering of carrageenan-based hydrogel matrices embedded with green-synthesized silver nanoparticles (AgNPs) for advanced biomedical and pharmaceutical applications. Silver nanoparticles were fabricated through an environmentally benign route employing natural biopolymeric reducing and stabilizing agents, eliminating the need for hazardous chemical reagents and minimizing ecological impact. The synthesized AgNPs were subsequently incorporated into κ-carrageenan hydrogel networks under controlled physicochemical …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 7–28 Read article