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1215 articles for “species”
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Risk Assessment of Polychlorinated biphenyls (PCBs) in Fish Samples from Otamiri River, Imo State, Nigeria
Abstract: The presence of Polychlorinated biphenyls (PCBs) in water poses human and ecological health risks in Nigeria. Polychlorinated biphenyls present in three fish species (T. Zilli, E. Fimbriata and C. Nigrodigitatus), and its related health risk via consumption of fish from Otamiri river in Imo State Nigeria has been duly investigated in this study. A risk quotient (RQ) for fish consumption was applied to evaluate the related health risk. A total …
Published in International Journal of Green Chemistry · Vol. 8, Issue 2, 2022 · pp. 10–19 Read article
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Analytical study of CFST Columns at different Temperatures under Monotonic loading using Abaqus Software (CC & LWC infill)
Abstract: This paper presents, Behaviour of Conventional & Lightweight Concrete-Filled Steel Tube under monotonic loading at different temperatures is investigated using finite element method (Abaqus version 6.13.0.). The parameters chosen for the study are the geometry of the specimen – circular section, different L/D ratios, different grades of conventional & lightweight concrete infill and different temperatures (30°C, 60°C, 90°C, and 120°C). The study includes an analytical investigation into a total of …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 43–52 Read article
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Impact of Microcrack Healing Techniques on Resilient behavior of Asphalt Concrete
Abstract: Concentrated efforts on the development of innovative materials and techniques for asphalt pavement repair are going on, many of them related to crack healing. Flexible pavement usually practices repeated loading and environmental impacts and suffers distresses throughout its service life. Microcracks initiates and can heal itself under controlled conditions. In this Concentrated efforts on thedevelopment of innovative materials and techniquesfor asphalt pavement repair are going on, many of them related …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 6, Issue 1, 2020 · pp. 33–41 Read article
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Experimental Study on Effect of Momentum Transfer Hydrocarbon Degradation in Stream System
Abstract: This research work demonstrates the significance of individual hydrocarbon degradation in a flowing stream system and the effect of the momentum transfer on the concentration of the individual hydrocarbon was examined on the influence of period of exposure (time) on the environment as well as the distance of dispersion. The substrate concentration variation was monitored with respect to time and distance as well as reciprocal of the substrate established by …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 2, 2020 · pp. 47–55 Read article
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An Introduction of Nanotechnology: Classification, Uses, and Applications of Nanomaterials
Abstract: Nanomaterials (NMs) have acquired noticeable quality in creative advancements due to their tuneable physical, synthetic, and organic qualities with improved performance over their mass counterparts. The order of the NMs is determined by their size, creation, form, and starting. The ability to predict the unique features of NMs increases the value of each order. Because of the increased growth of NM creation and their current uses, difficulties relating to harmfulness …
Published in International Journal of Composite and Constituent Materials · Vol. 7, Issue 2, 2021 · pp. 31–38 Read article
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Impact, Flexural, and Hardness Properties of AISI 1018 Mild Steel Butt Joint Welded using Gas Metal Arc Welding (GMAW) under Various Welding Parameters
Abstract: AbstractThe effects of welding parameters such as welding current, voltage, and travel speed on the impact, flexural, and hardness properties of AISI 1018 mild steel using Gas Metal Arc Welding (GMAW) were investigated. In this research, specimen sizes of 500 mm x 10 mm x 10 mm and 5.5 mm x 10 mm x 10 mm were fabricated according to ASTM standards. In addition, a v-groove had been prepared at …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 6–13 Read article
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Speed Checker for Highways
Abstract: This article has descriptive issued speed check policy for highways. Estimating velocity of moving vehicle has adoptive issued usual vehicle speed detection by usage of image/video process etiquette, where speed has conclusive, as of, usage time taken between frame/corner detection i.e., object traversed abide by frame specific issue. Henceforth, output has rated by frame mask ethic to finally secure usual differentiation beyond one issue i.e., act out of one and …
Published in International Journal of Computer Aided Manufacturing · Vol. 7, Issue 2, 2021 · pp. 11–16 Read article
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FE Modelling and Analysis of Mixed Mode Delamination in Composite Laminates
Abstract: A composite is a structural material that consists of two or more constituents combined at a macroscopic level and not soluble in each other. The advantages of composites over conventional materials are its light weight, high strength, design flexibility, dimensional stability, etc. Although Composite materials are advantageous than conventional materials, there are some defects in composite materials too, which are Fibre-matrix debonding, fibre misalignment, Delamination, Matrix cracking, Impact damage, etc. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 2, 2018 · pp. 31–57 Read article
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Friction Stir Processing & Aging on Fatigue Properties of Different Alloy: A Review
Abstract: The FSP process is a thermo mechanical processing techniques which is carried out by means of pin tool that will heat and mechanically deformed the material. FSP has been developed to produce UFG by applying compressive load with a suitable Tool. To enhance the mechanical properties like strength, fatigue, hardness as well as other properties like optical, electrical, magnetic the microstructure is that decides them. We refine grains by large …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 7, Issue 1, 2021 · pp. 1–8 Read article
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A Study to Assess the Knowledge and Attitude Regarding Vaccine Against Human Papilloma Virus Infection Among Adolescent Girls (14–16 Years) in Selected Schools of Gujarat State with a View to Develop an Information Booklet
Abstract: Adolescence is a time of transition from childhood to adulthood. It is a particular stage of development during which a kid experiences significant physical, emotional, and social change as well as sexual maturation. The modern adolescent is thought to know more about international events. They represent one-fifth of the world’s population. In today’s scenario both parents are employed to fulfill the increasing demands to maintain the socio-economic status in society, …
Published in International Journal of Immunological Nursing · Vol. 9, Issue 1, 2023 · pp. 22–25 Read article
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Assessment of M30 Concrete Compressive Strength Using Digital Rebound Hammer and Destructive Testing
Abstract: Abstract The assessment of in-situ concrete strength using non-destructive testing (NDT) techniques hasbecome increasingly important for quality assurance, structural evaluation, and conditionassessment of concrete infrastructure. Among the available NDT methods, the digital reboundhammer offers a rapid, economical, and non-destructive means of estimating concretecompressive strength. This study experimentally investigates the correlation between reboundnumbers obtained from a digital rebound hammer and the compressive strength of M30 gradeconcrete determined using a Compression Testing …
Published in International Journal of Structural Engineering and Analysis · Vol. 12, Issue 2, 2026 Read article
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Evaluation of Kinetic Parameters of Crude Oil Remediation Using Bio-Stimuant of Mint Leaf (Mentha piperita)
Abstract: Kinetic parameters of crude oil degradation as related to total petroleum hydrocarbon (TPH) were evaluated. The experiment was set-up using crude oil, loamy soil polluted and addition of bio-stimulant (nutrient based substance). The depletion of the pollutant was monitored within the contact time of 7 to 35 days. At intervals of 7 days samples were collected and analyzed to determine the TPH concentration at each bioreactor set-up, through subjecting the …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 62–71 Read article
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Mechanical and Thermal Characterization of Natural Fiber-Reinforced Epoxy Composites for Structural Applications
Abstract: Natural fiber reinforced polymer (NFRP) composites have emerged as promising alternatives to conventional synthetic fiber composites owing to their environmental sustainability, low density, and competitive specific mechanical properties. However, a comprehensive and simultaneous evaluation of both mechanical and thermal performance of jute/sisal hybrid natural fiber epoxy composites under systematic fiber treatment conditions remains insufficiently addressed in the literature. The present study investigates the mechanical and thermal characterization of jute and …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 1, 2026 · pp. 37–48 Read article
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Abundance and Diversity of Meiofauna as Bioindicator of Water Quality and Health Status of Tombia Segment, New Calabar River, Niger Delta, Nigeria
Abstract: The abundance and diversity of meiofauna as bioindicator of water quality and health status of Tombia segment of the New Calabar River, Niger Delta, Nigeria was studied. Sediment samples from the respective stations were collected monthly in replicates between July and September,2023 using a handheld perplex corer at a depth of 10cm and analysed in the Laboratory following standard method of APHA. The data obtained were subjected to descriptive and …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 36–46 Read article
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Intelligent Trajectories: Harnessing Artificial Intelligence for Next Generation Missile and Propellant Design
Abstract: The rapid evolution of artificial intelligence (AI) has unlocked transformative pathways for high-performance aerospace engineering, yet its integration into missile and propellant design remains nascent. This study investigates a hybrid AI-driven framework that unites physics-based modeling, data-centric learning, and multi-objective optimization to accelerate the conception, validation, and refinement of missile airframes and solid-propellant formulations. First, a physics-informed neural network (PINN) is trained on a curated database of historic missile geometries, …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 20–26 Read article
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Nanotechnology: Revolutionizing the World of Sensors
Abstract: Sensors are ubiquitous in modern society, playing critical roles in fields ranging fromenvironmental monitoring and healthcare diagnostics to industrial automation and food safety.However, traditional sensor technologies often face limitations in response time, sensitivity, andspecificity, hindering their effectiveness in applications demanding rapid and precise detection.Nanotechnology offers a powerful toolbox to overcome these challenges, enabling thedevelopment of advanced sensors with unprecedented performance. This article explores thetransformative impact of nanotechnology on sensor technology, …
Published in International Journal of Applied Nanotechnology · Vol. 11, Issue 2, 2025 Read article
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The Effect of Sugar Powder on Strength of Concrete
Abstract: Abstract This study presents a comprehensive experimental investigation into the influence of sugar powder on the compressive strength of concrete. The research aims to systematically evaluate the effects of incorporating sugar powder in varying proportions on the mechanical and structural performance of concrete, particularly when combined with different brands of cement. Concrete cube specimens with standard dimensions of 150 mm × 150 mm × 150 mm were meticulously prepared by …
Published in International Journal of Concrete Technology · Vol. 11, Issue 1, 2025 · pp. 22–28 Read article
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Isolation and Characterization of Alkaloidsfrom Ancistrocladus Heyneanus Leaves: A Phytochemical Study
Abstract: Leaves of Ancistrocladus heyneanus were collected from the forest of the Matheran hills of Maharashtra. From these leaves, alkaloids were extracted using dichloromethane, and two new monomeric Naphthyl-iso-quinoline alkaloids, Youndamine A and Ancistrocline were isolated using TLC and HPLC. HPLC/MS and NMR further identified the patient. The present study involves the collection and chemical investigation of the leaves of Ancistrocladus heyneanus, a plant species found in the forested regions of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 7–20 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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Formulation of Form-Based Code to improve the livability of a neighbourhood - A case study and application on a major street in Anna Nagar, Chennai.
Abstract: Neighbourhood planning and redevelopment must ensure that it is healthy, sustainable and equitable by providing easy access to shops, services, schools, to nature and community. An efficient neighbourhood has to not only provide an affordable and good quality of life for residents of all age groups but should also be financially viable for developers. Hence, to ensure that redevelopment responds to revised community needs, a new thought process must be …
Published in International Journal of Urban Design · Vol. 3, Issue 2, 2020 · pp. 12–20 Read article