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90 articles for “copper”
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Application of a graphene oxide for determination of Cadmium, Lead, Copper and Zinc ions at trace level in personal Care Products using Solid Phase Extraction
Abstract: A novel and simple procedure Solid Phase µ-extraction was successfully used as a sample preparation method for the pre concentration and determination of Cd, Pb, Cu, and Zn in different personal care products samples. In the first screening, a five variables were selected with low (-) and high level (+) and were inspected by Plackett–Burman. In order to further optimization, a central 23 +star orthogonal composite design (CCD) was applied …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 1, 2020 · pp. 14–23 Read article
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Replacement of Natural Fine Aggregate by Copper Slag
Abstract: This paper presents the applications of replacement of natural fine aggregate using copper slag. The study is conducted by replacing the fine aggregate from 0 to 100% at the interval of 20% on M25 grade concrete and 1.8% superplasticizer by weight of cement. The compressive strength, split tensile strength and flexural test is studied and reported. It is observed that replacement of natural fine aggregate at 40% (CS40) gives higher …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 23–28 Read article
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Performance study of Perovskite (CH3NH3PbX3, X=I, Br,Cl) Solar Cell using Copper Thiocyanate (CuSCN) as Hole Transport Layer
Abstract: Using perovskite compounds such as "methyl ammonium lead halide (MAPbX3, MA= CH3NH3, X=I, Br, Cl)" and SCAPS tools, researchers conducted a thorough modelling and numerical simulation of perovskite solar cells. They also measured metrics such as "open-circuit voltage (Voc), fill factor (FF), power conversion efficiency (PCE), and short-circuit current density (Jsc) of the MAPbI3, MAPbBr3, and MAPbCl3 material used as active layer, respectively." As the hole transport layer (HTL) in …
Published in International Journal of Electrical Power System and Technology · Vol. 9, Issue 2, 2023 Read article
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Analyzed the Interfacing Effect on Performance of Perovskite Solar Cell Using Copper Thiocyanate (CuSCN) as Hole Transport Layer
Abstract: The interfacing layers occurs between the electron transport layer (ETL) (TiO 2 ) and Absorber layer(CH 3 NH 3 PbI 3 ) and also Absorber layer (CH 3 NH 3 PbI 3 ) and hole transport layer (HTL) play important role in the efficacy of perovskite solar cells using SCAPS Tool. Using solar cells makes sense and may even be required in the future when new clean energy sources are …
Published in International Journal of Microwave Engineering and Technology · Vol. 9, Issue 2, 2023 · pp. 49–55 Read article
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CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 2, 2020 · pp. 49–74 Read article
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Modification of Solar Hot Water Heating System
Abstract: In optoelectronics system, the copper sulfide powder plays an important role as a thin film layer. This paper covers fabrication of Copper sulfide (CuS) Powder and its characterization. The fabricated Copper sulfide powder gives better result as compared to commonly used Copper sulfide (CuS) available in the market. In this experiment, the Copper sulfide powder (CuS) was coated on the tubes as a thin film and measured the outlet water …
Published in International Journal of Water Resources Engineering · Vol. 9, Issue 1, 2023 · pp. 33–39 Read article
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Synthesis, Spectral Study, SEM Analysis and Antibacterial Study of New Indole Azo Ligand and Complexes
Abstract: Azo ligands have developed significantly in recent decades due to their fundamental role in the coordination chemistry of transition elements. Their rapid response to coordination bonding in ligand and complex chemistry, particularly with divalent ions, is a key factor. The azo-bridged bond has played a well-established role in the formation of cobalt, nickel, and copper complexes. In this study, we prepared a novel ligand, an indole derivative bonded to an …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 1–10 Read article
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Chemical and Nanotechnological Strategies for Enhanced Alopecia Treatment
Abstract: Over 50% of individuals suffer from androgenetic alopecia (AGA), a prevalent cause of hair loss that has historically been treated with oral finasteride and topical minoxidil, however, these have inconsistent results. Platelet-rich plasma (PRP), microneedling, and novel medication delivery devices are some of the recent developments in AGA treatment that are intended to enhance therapeutic results and patient satisfaction. In order to improve hair regrowth, this review looks at new …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 1–15 Read article
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Review on Electrolytic Process by Refining the Metals
Abstract: Electrolysis is a method of purifying impure metals. The crude metal that needs to be refined serves as the anode in an electrolytic cell while the metal that has been purified serves as the cathode. To ensure that the metal at the cathode is reduced extremely specifically, the electrode potential is chosen. Impurities are left behind in the electrolyte liquid as the metal is transferred from theunrefined metal of the …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 1, 2022 · pp. 5–9 Read article
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Technical Yarns from Newly developed Indigenously Fabricated Folding Unit
Abstract: A small machine was developed indigenously with a new concept for the manufacturing of different kinds of technical yarn. This prototype machine is only for the production of coarser counts and it gives the core-sheath yarn structure. The yarn obtained from this machine can be comparable with yarn produced on DREF spinning. Any type of core material, like cut selvedge produced from modern looms, metallic wires, and the filament yarns …
Published in International Journal of Composite and Constituent Materials · Vol. 2, Issue 2, 2016 · pp. 3–7 Read article
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PORTABLE SOLAR WATER HEATER
Abstract: This project explores the design of a portable solar water heater optimized for high-efficiency heat transfer in off-grid settings. The system utilizes the superior thermal conductivity of copper turnings, which serve as a heat exchanger to capture direct solar radiation. Using a closed-loop mechanism, a small pump circulates water from a storage tank through these copper coils, where it is rapidly heated before returning to the reservoir. This active circulation …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 19–25 Read article
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Advancing Early Detection of Menkes Disease Through Image Analysis and Biosensor Integration
Abstract: Menkes disease, a rare X-linked recessive disorder of copper metabolism, poses significant challenges in early diagnosis due to its nonspecific initial symptoms. This paper presents a comprehensive approach to enhance the early detection of Menkes disease by leveraging image processing techniques, pattern recognition algorithms, and innovative biosensor technologies. A novel framework is proposed that combines analysis of hair microscopy images, facial feature recognition, and copper-sensitive biosensors to create a multi-modal …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 10, Issue 2, 2024 · pp. 24–34 Read article
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Analysis of Surface Finish of Different Metallic Materials
Abstract: This study investigates surface processing techniques aimed at achieving a surface roughness (Ra) value of < 2.5 for various materials including gray iron, steel, pure copper, aluminum, and brass. Surface roughness plays a crucial role in determining the functional and aesthetic properties of machined components. The attainment of a specific Ra value demands precise control over machining parameters and selection of appropriate finishing processes. For steel, machining operation grinding followed …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 1, 2024 · pp. 1–12 Read article
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Water heater using cow dung and waste
Abstract: This project has its theme based on best from waste. Here, heat energy is obtained using a fuel which possesses no harm to the nature. Also, the demand for fossil fuels is very high and day-by-day energy consumption across the globe has increased tremendously. This project provides a cost effective and efficient solution to today’s increasing energy demands. In this project, the device consists of a copper pipe coiled throughout …
Published in International Journal of Environmental Chemistry · Vol. 3, Issue 1, 2017 · pp. 25–29 Read article
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Role and Applications of Alloys in Everyday Life
Abstract: An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character. An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Melting point: Put the alloy, a piece of tin and a piece of lead into a sand tray. All three samples should be …
Published in International Journal of Metallurgy and Alloys · Vol. 3, Issue 1, 2017 · pp. 17–23 Read article
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Recent Advances on the Role of Cu-Nanoparticles in the Organic Transformations
Abstract: Copper nanoparticles explored the most useful class of heterogeneous catalyst in various chemical transformations. Copper nanoparticles has attracted much more attention because of its promising activity, high atom economy, better yield, shorter reaction times, inexpensive, recyclability, low catalyst loading. These approaches open new possibilities in, click reactions, C-N and C-S cross coupling reaction, fixation of CO2, KA3 and A3 coupling, aziridine ring opening reactions. This review covers some useful organic …
Published in International journal of Nanobiotechnology · Vol. 6, Issue 2, 2020 · pp. 31–41 Read article
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Compatibility of Nanobiocide as Wood Preservative with Thermosetting Resin used as Adhesive for Plywood Manufacturing
Abstract: The study objective was to develop a wood preservative by nano form of Copper oxide, Zinc oxide and Copper sulphate for wood based panel products to make the system with a lesser amount of toxicity. Wood preservatives are products used for the safeguard of wood from deterioration or damage caused by detrimental organisms (for example; fungi, moulds or pests). Nanotechnology presents a notable opportunity to boost the field of wood …
Published in International Journal of Composite Materials and Matrices · Vol. 1, Issue 1, 2015 · pp. 1–6 Read article
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Determination of the Concentration of Some Selected Metals in Unripe Plantain (Musa paradisiaca)
Abstract: Plantain (Musa paradisiaca) is a food commonly consumed in Nigeria as boiled, roasted, or fried in its ripe and unripe form. Plantains harvested in Ekpoma, a predominately plantain-growing community, were studied for their mineral and sugar composition level of the unripe. Complexometric titration was used to determine the level of calcium and magnesium, flame photometer was used for sodium and potassium determination while zinc, iron, copper, chromium, manganese, and Co …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 1–4 Read article
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Monitoring of the Physicochemical Properties of Some Important Parameters That Induce Metal Corrosion in Water Medium
Abstract: This investigation addresses the effect of freshwater quality on metal corrosion in Choba river located in Obio/Akpo Local Government Area of Rivers State of Nigeria. The research involves the use of four different metal coupons namely Carbon Steel (CBS-D), Mild Steel (MS-B), Stainless Steel (SST-C), and Copper Steel (CPS-A). The different metal coupons were immersed in the freshwater medium and the freshwater medium is contaminated with industrial activities. The rate …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 24–36 Read article
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Review on the Performance of Fibre and Industrial Slag in Concrete
Abstract: This review paper discusses about the different types of fibre used in concrete at different periods with the mix parameter details. This review enlightens the effect of industrial waste such as Bottom ash, Copper slag, Ferro-chromium slag, Ground granulated blast furnace slag (GGBFS), Steel slag, Stainless steel slag as a substitute in concrete. The elaborate study on its chemical composition and also the merits and demerits of using the slag …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 16–30 Read article