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458 articles for “concentration”
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Interfacial Engineering and Performance Optimization of Jute-Fiber-Reinforced Epoxy Laminates
Abstract: The increasing environmental concerns associated with synthetic fiber reinforced polymer composites have driven substantial research interest toward naturally derived, biodegradable fiber alternatives. This study presents a comprehensive mechanical and thermal characterization of jute fiber reinforced epoxy composites fabricated via hand lay-up followed by compression molding. Jute fibers were subjected to alkali treatment using 5 wt% sodium hydroxide (NaOH) solution for 4 hours at ambient temperature to enhance fiber–matrix interfacial bonding …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 52–64 Read article
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Crude Oil Degradation on the Influence of Palm oil-Fermented Wastewater Used as Biostimulant
Abstract: *Author for CorrespondenceUkpaka Chukwuemeka Peter E-mail: [email protected] The total petroleum hydrocarbon (TPH) degradation was monitored in a batch reactor with the addition of biostimulants like palm oil processed wastewater (POPWW) acting as nutrients, to effectively enhance high efficiency in contaminants remediation in clay soil. The kinetic components were evaluated in terms of specific rates of petroleum hydrocarbon degradation, maximum specific rate of total petroleum hydrocarbon degradation as well as the …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 47–60 Read article
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GIS-Based Assessment of Flash Flood Hazard and Community Resilience in the Melamchi River Basin, Nepal
Abstract: Abstract: Flash floods are one of the most destructive natural hazards in mountainous regions due to their its rapid onset, high velocities, and short warning time. Erratic rainfall, cloudbursts, landslide, and climate-induced hydrological variability are the prime factors to trigger flash floods in the Himalayan region. The Melamchi River Basin in central Nepal has witness recurrent flash flood events, most notably the catastrophic 2021 flood. An Integrated hazard assessment and …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 12, Issue 1, 2026 Read article
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Analyze Effect Of Skew Angle On Performance of R.C Girder Bridge Deck
Abstract: Abstract - The performance of reinforced c oncrete (R.C) girder bridge decks is significantly influenced by geometric configurations, among which the skew angle plays a critical role. Skewed bridges are commonly employed to accommodate site constraints, road alignment, and river crossings, but they introduce complex stress distributions, torsional effects, and differential deflections compared to straight bridges. This study investigates the effect of varying skew angles on the structural behavior of …
Published in International Journal of Structural Engineering and Analysis · Vol. 12, Issue 1, 2026 Read article
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Global Trends in Environmental Chemistry Research: A Bibliometric Analysis of Leading Nations (1996–2023)
Abstract: Environmental contamination has become a significant issue worldwide, primarily driven by human activities. A multitude of scholarly articles are disseminated globally within the field of environmental chemistry, reflecting its vast potential to address this issue in a sustainable manner. This article conducts a bibliometric assessment of research outputs, concentrating on publications, citations, and citations per document from the leading 30 countries globally, spanning the years 1996 to 2023 to substantiate …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 1–15 Read article
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Proximate Analysis and Functional Activities of African Pear Fruit (Dacryodes edulis) Grown in Makurdi, North Central Nigeria
Abstract: Dacryodes edulis (African Pear Fruit) is an indigenous edible fruit that is used for both food and medicine in North Central Nigeria. The nutritional composition and functional properties of Dacryodes edulis were studied using standard analytical techniques. The fruits were analyzed for Physico-chemical characteristics (pH, Titratable acidity and Total insoluble solids), proximate analysis (Crude protein, Ash content, dry matter content), Mineral analysis (Se, Mn) and antioxidant activity (TBARS). The analyzers …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 12–18 Read article
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A Sensor-Based Soil Monitoring System for Better Crop Harvesting
Abstract: Crop productivity is strongly affected by soil health, environmental conditions, and the availability of timely and accurate monitoring data. Traditional soil testing and crop assessment methods are labor-intensive and time-consuming. They also lack real-time capabilities, which limits efficient agricultural decision-making. This paper proposes an IoT-enabled smart soil monitoring and crop management system that provides real-time analysis of important soil and environmental parameters to improve agricultural productivity. The proposed system uses …
Published in International Journal of Plant Biotechnology · Vol. 12, Issue 1, 2026 · pp. 18–24 Read article
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Experimental Analysis of Performance, Combustion and Emission Characteristics of a Thermal Barrier–Coated Piston Diesel Engine Fuelled with Jatropha Biodiesel Blended with Nanoparticles
Abstract: Abstract The present study experimentally investigates the performance, combustion, and emission characteristics of a compression ignition diesel engine equipped with a thermal barrier–coated (TBC) piston and fuelled with alumina nanoparticle-enhanced Jatropha biodiesel. A yttria-stabilized zirconia (YSZ) ceramic coating was applied on the piston crown to reduce heat loss and improve in-cylinder thermal conditions. Jatropha biodiesel blends (B10, B20, and B30) were prepared through transesterification, and alumina (Al₂O₃) nanoparticles at a …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 1–9 Read article
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Beneficiation of Low-Grade Iron Ores: Comprehensive Review of Conventional and Advanced Techniques
Abstract: Due to the rapid depletion of high-grade iron ore resources and exponential demand from the global steel industry, particularly in India targeting 300 MTPA by 2025, the utilization of low-grade iron ores including Banded Hematite Quartzite (BHQ), Banded Hematite Jasper (BHJ), and lateritic iron ores has become critically important. These ores contain 30–50% Fe with associated gangue minerals such as SiO₂ (40–50%), Al₂O₃ (0.5–2.5%), and minor constituents including goethite, magnetite, …
Published in International Journal of Metallurgy and Alloys · Vol. 12, Issue 1, 2026 · pp. 1–18 Read article
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The Enduring Impact and Future Trajectory of Semiconductor Temperature Sensing: A Study
Abstract: We live in a world obsessed with measurement, and temperature is its most intimate metric. It isthe difference between a thriving processor and a melted core, between a stable chemicalreaction and a catastrophic one, between a comfortable home and an inhospitable one. Fordecades, this measurement was the domain of mercury columns and bimetallic strips—physical,analog, and stubbornly limited. Then came the silent revolution: the semiconductor temperaturesensor. Semiconductor technology has revolutionized the …
Published in International Journal of Analog Integrated Circuits · Vol. 11, Issue 2, 2025 Read article
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Bio-stimulation with Fresh Avocado Seed for Crude Oil Remediation: Experimental and Bio-kinetic Modelling
Abstract: The remediation of crude oil-contaminated soils requires sustainable and cost-effective solutions. This study investigates the performance of fresh avocado seed (Persea americana) as a biostimulant for the remediation of Bonny Light crude oil-contaminated soil from the Kalarugbana community, Niger Delta. A 56-day laboratory-scale experiment was conducted using bioreactors containing 1 kg of soil contaminated with 100 ml of crude oil and treated with different volumes of fresh avocado seed slurry …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 2, 2025 · pp. 68–76 Read article
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Predicting User Engagement on Social Media: A Comparative Study of Machine Learning-based Modeling Approaches
Abstract: Abstract Even while mobile social apps are becoming more and more important in people's daily lives, little is known about the elements that motivate users to interact with these apps. The goal of this work is to analyze and define the transition patterns of individual users' in-app actions as a temporally changing action graph. According to our investigation, action graphs are a useful tool for characterizing user behaviour patterns and …
Published in International Journal of Computer Aided Manufacturing · Vol. 11, Issue 2, 2025 · pp. 41–62 Read article
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Biostimulation of Petroleum Hydrocarbon ContaminatedSoils Using Bryophylum Pinnatum Extracts
Abstract: This study investigates the remediation potential of Bryophylum pinnatum extracts (water and ethanol-based) for degrading total petroleum hydrocarbons (TPH) in loamy and clay soils. Crude oil contaminants used in the study exhibited a pH of 6.76, density of 0.878 g/mL at 15 °C, kinematic viscosity of 147.4 mm²/s at 40 °C, and a flash point of 193.2 °C. The baseline TPH concentration in the soils was 48,291.14 ppm. Soils were …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article
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A Study on the Future of Industrial WastewaterTreatment Plant: Trends and Innovations
Abstract: Industrial wastewater treatment plants (IWWTPs) stand at the critical intersection of economic productivity and environmental sustainability. Unlike municipal sources, industrial effluent is characterized by extreme heterogeneity, containing highly variable concentrations of toxic heavy metals, recalcitrant organic compounds, suspended solids, and emerging contaminants. This complexity necessitates bespoke, multistage treatment trains, often combining physical, chemical, and advanced biological methods (e.g., membrane bioreactors, electrochemical oxidation, and anaerobic digestion). This analysis examines the contemporary …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 2, 2025 · pp. 1–13 Read article
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Seismic Wisdom in Stone: Structural Logic of Indian Temple Architecture
Abstract: Indian temple architecture has long been admired for its aesthetic perfection, ritual symbolism, and constructional ingenuity. Less celebrated – but equally remarkable – is its inherent seismic wisdom. Drawing upon textual canons (Vāstu Vidyā), geometric discipline (square and mandala-based layouts), and refined masonry craft, historic temples across India exhibit a suite of architectural and structural features that collectively enhance earthquake performance. This paper synthesizes evidence from classical treatises and modern …
Published in International Journal of Architectural Heritage · Vol. 8, Issue 2, 2025 · pp. 14–20 Read article
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Promoting Sustainable Agricultural Practices to Mitigate Nitrate and Pesticide Contamination in Uttar Pradesh Groundwater
Abstract: Groundwater serves as an indispensable resource for human consumption, agriculture, and industry globally, holding particular significance in India, where it supports over 80% of irrigation in states like Uttar Pradesh. However, the intensification of agricultural practices, characterized by the indiscriminate application of chemical fertilizers and pesticides, has led to widespread contamination of these vital aquifers. This paper undertakes a comprehensive examination of the prevalence, primary sources, and multifaceted impacts of …
Published in International Journal of Agrochemistry · Vol. 11, Issue 2, 2025 · pp. 1–14 Read article
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Effect of Al2O3 and CeO2 Nanocatalysts on Biodiesel Yield from Pine and Soapnut Oils
Abstract: Abstract This study examines the influence of aluminium oxide (Al2O3) and cerium oxide (CeO2) nanocatalysts on the biodiesel yield obtained from two non-edible oils: pine oil and soapnut oil. Both oils were extracted through mechanical pressing and converted into biodiesel using the transesterification process. To understand how different process conditions, affect biodiesel production, a Box–Behnken Design (BBD) was used. Three key variables—methanol-to-oil ratio, catalyst concentration, and reaction temperature—were analyzed to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 11, Issue 2, 2025 · pp. 1–10 Read article
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Investigation of Thermo-Acoustic Properties of Ethanol-Cyclohexane Binary Mixture
Abstract: The density, viscosity, and speed of sound for ethanol-cyclohexane binary mixtures were determined across mole fractions ranging from 0.1 to 0.9 using an Anton Paar DSA 5000 M within the temperature span of 288.15–318.15 K. From these experimental measurements, several thermodynamic and acoustic properties, such as isentropic compressibility, relative association, free volume, relaxation time, Gibbs free energy of activation, internal pressure, and solubility parameter, were derived. These parameters serve as …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 2, 2025 · pp. 1–14 Read article
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Biosynthesis of silver nanoparticles using Zingiber officinalae and Evaluation of cervical cancer activity
Abstract: This research focused on evaluating the potential anti-cervical cancer properties of silver nanoparticles (AgNPs) that were synthesized using an aqueous extract derived from the rhizome of Zingiber officinale (ginger). The synthesized silver nanoparticles (AgNPs) were thoroughly characterized using a range of analytical techniques, including Ultraviolet-Visible (UV-Vis) spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), and Field Emission Scanning Electron Microscopy (FESEM).Characterization studies revealed that the synthesized silver nanoparticles (AgNPs) exhibited an average …
Published in International journal of Nanobiotechnology · Vol. 11, Issue 2, 2025 · pp. 1–10 Read article
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Evaluation of Groundwater Quality Parameters Through Physico-Chemical Analysis in the Puducherry Region
Abstract: Abstract The evaluation of the quality of drinking water in Puducherry state and its surrounding regions primarily concentrated on groundwater sources. Nine specimens were examined using standardized techniques, and their outcomes were contrasted with national standards. Nevertheless, on a worldwide scale, the quality of water is facing a growing danger from unwelcome alterations in its physical, chemical, and biological characteristics. Population growth, industrialization, fertilizer usage, and mining activities are major …
Published in International Journal of Water Resources Engineering · Vol. 11, Issue 1, 2025 · pp. 24–32 Read article