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71 articles for “Copper/Zinc Dual-Doped Microneedles”
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Design and Development of Semiconductor Nanocomposites for Photoelectrocatalytic Applications
Abstract: Humanity is currently facing an unprecedented challenge: anthropogenic climate change. This complex phenomenon is driven by a multitude of factors, including scientific, psychological, societal, and social dimensions, among others. the release of greenhouse gases, such as CO2, CH4, N2O, HFCs, and PFCs have increased significantly. Since the industrial revolution, atmospheric CO2 levels have surged by 50%. Although gases like CO2 and CH4 occur naturally and are essential for maintaining the …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 2, 2024 · pp. 25–32 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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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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Bidirectional DC–DC Converter Design and Control for EV Charging Stations with Grid Support Capability
Abstract: The rapid proliferation of electric vehicles (EVs) has intensified the demand for advanced charging infrastructure capable of delivering reliable, efficient, and grid-aware power management. Conventional unidirectional chargers are inadequate for modern smart-grid applications, as they preclude the utilization of stored battery energy for grid support functions. This paper presents the design, mathematical modeling, and simulation-based validation of a non-isolated bidirectional DC–DC buck–boost converter rated at 20 kW for EV charging …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 1, 2026 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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Recent Developments in Low-Temperature Combustion (LTC) Strategies for Next-Generation Engines
Abstract: AbstractThe growing demand for cleaner and more efficient internal combustion engines has driven extensiveresearch into advanced combustion methods, among which Low-Temperature Combustion (LTC)strategies have emerged as a highly promising area. LTC offers a unique approach to enginecombustion by lowering the peak temperatures within the combustion chamber, thereby significantlyreducing the formation of nitrogen oxides (NOx) and particulate matter (PM) – two major pollutantsassociated with traditional engine designs. Importantly, LTC systems achieve …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 11, Issue 1, 2025 · pp. 7–12 Read article
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Operational-Amplifier-Based Realization of a 1-BitArithmetic Logic Unit: Design, Implementation, and Experimental Validation
Abstract: This work presents the design, construction, and experimental evaluation of a 1-bit Arithmetic Logic Unit (ALU) implemented entirely with operational amplifiers (op-amps), using only LM324 devices, passive components, and a dual-polarity ±12 V supply on a breadboard prototype. The ALU per- forms eight fundamental arithmetic and logic operations, addition, subtraction, AND, OR, NOT, NAND, NOR, and XOR, by combining op-amp comparator-mode logic gates with op-amp-based summing and difference amplifiers for …
Published in International Journal of Analog Integrated Circuits · Vol. 12, Issue 2, 2026 Read article
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Improving Supply Chain Efficiency in Design-Bid-Build Construction Projects
Abstract: Design-Bid-Build construction projects, widely used in India’s public sector, face significant supply chain management inefficiencies due to fragmented coordination, delayed procurement, and limited technology adoption. This study investigates supply chain management challenges in design-bid-build projects through a mixed-methods approach, analyzing five case studies (office building, university, university admin block, residential school, and college of engineering) and survey data from 62 industry experts. Thematic analysis identified four key challenge themes: material …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 11, Issue 2, 2025 · pp. 1–9 Read article
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Aluminum Alloy as Sacrificial Anode for Corrosion Protection: A Review
Abstract: Aluminum sacrificial anodes are widely used for cathodic protection in marine, offshore, and energy applications due to their light weight, high current efficiency, and favorable electrochemical potential. Pure aluminum, however, rapidly passivates in seawater, reducing protective performance. Alloying with elements, such as zinc, indium, gallium, tin, and bismuth, improves activation, ensures uniform dissolution, and stabilizes long-term behavior. This review examines the influence of alloying elements on electrochemical performance, microstructure, and …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 2, 2025 · pp. 1–13 Read article
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Exploring the Insider-Outsider Perspective in Interpreting Indigenous Built Heritage: A Case of Sahariya Tribe in Madhya Pradesh
Abstract: Globally, cross-cultural research has become important especially for understanding marginalized and vulnerable voices allowing researchers to find answers resonating with these communities’ lived experiences. A very critical concept in cross-cultural research is the insider-outsider positionality as subjective interpretations contribute towards determining the notion of heritage and influence the outcome of the qualitative research. This paper examines the above-mentioned duality in establishing built heritage of tribal communities in Indian context. In …
Published in International Journal of Architectural Heritage · Vol. 8, Issue 1, 2025 · pp. 18–24 Read article
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Nanoparticles for Broiler Nutrition: Enhancing Growth, Feed Efficiency, Health, and Welfare of the Broiler Chicken
Abstract: Nanotechnology offers transformative potential for broiler nutrition by enabling enhanced nutrient delivery, efficiency, and health outcomes in poultry production. This review explores the applications, mechanisms, and impacts of incorporating nanoparticles, such as nano-minerals (e.g., zinc, selenium, and copper), nano-encapsulated bioactives, and other functional nano-additives, into broiler diets. Nanoparticles, owing to their increased surface area and enhanced bioavailability, have shown promise in improving nutrient absorption, promoting immune function, and supporting overall …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 11, Issue 1, 2025 · pp. 32–43 Read article
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Development of Nanocomposites for Sensor Applications
Abstract: The development of nanocomposites for sensor applications represents a significant breakthrough in materials science and engineering, driven by the unique properties of nanomaterials. Nanocomposites, which combine nanoparticles with polymers or other matrices, exhibit enhanced mechanical, electrical, and thermal properties, making them highly suitable for various sensing applications. The integration of nanoparticles, such as metal oxide, carbon nanotubes, and graphene, into a composite framework can dramatically increase sensitivity and selectivity, enabling …
Published in International Journal of Applied Nanotechnology · Vol. 11, Issue 1, 2025 · pp. 18–37 Read article
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Dry Season Impact on Water Quality of Nworie River, Owerri, Nigeria
Abstract: This study assessed the physicochemical properties and heavy metal contamination of Nworie River during the dry season. Fifteen composite water samples were collected from strategic points along the river. In-situ measurements of pH, temperature, and electrical conductivity were undertaken, while laboratory analyses determined heavy metal concentrations. Pollution Load Index and Contamination Factor were employed to evaluate the overall water quality and contamination levels. Results indicated moderate to high levels of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 40–49 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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Analyzing Atmospheric Particulate Matter in PortHarcourt and Omoku, Nigeria, Using Artificial NeuralNetworks and Fuzzy Logic
Abstract: Port Harcourt and Omoku, two densely populated towns in Rivers State, Nigeria, are hubs of industrial, commercial, and residential activities, characterized by the presence of oil and gas industries, educational institutions, large markets, and, in the case of Omoku, access to free electric power supply. These activities contribute to environmental degradation through industrial effluents, domestic waste, automobile emissions, gas flaring, and biomass burning, which release aerosols that form harmful particulates …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 16–52 Read article
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Fungal-Mediated Synthesis of Silver Nanoparticles Using Fusarium Oxysporum and Their Antimicrobial Evaluation
Abstract: Nanotechnology has shown significant antimicrobial properties in the form of metal nanoparticles like silver, copper, and zinc. Silver nanoparticles (AgNPs) are biosynthesized from the fungus Fusarium oxysporum, isolated from infected ginger, which has antibacterial and antifungal properties. The synthesized AgNPs are reddish brown and have a maximum absorbance of 451 nm. The functional groups of AgNPs are investigated using FTIR analysis. SEM-EDX Shows Shape of Particle Spherical-Rod, Size from 6.13 …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 2, 2024 · pp. 1–11 Read article
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Exploring Conductive Polymers for Flexible Electronics:Fabrication Techniques and Performance Analysis
Abstract: The advent of conductive polymers has heralded a new era in the development of flexible electronics, offering a unique blend of mechanical flexibility and electronic functionality. This paper explores the various fabrication techniques employed in the production of conductive polymers, with a particular focus on their application in flexible electronic devices. Key methods such as chemical vapor deposition, solution processing, and electrochemical polymerization are reviewed in detail, highlighting their advantages …
Published in International Journal of Polymer Science and Engineering · Vol. 10, Issue 1, 2024 · pp. 22–28 Read article
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IoT Based Automatic Fault Detection in Low Transmission Line
Abstract: Electric hazards associated to transmission lines are a big worry when negotiating India's complexelectrical distribution network. According to estimates from the National Crime Records Bureau, aboutone lakh individuals have perished from electrocution in only the last ten years. The average yearlydeath toll increased from approximately 11,000 to 12,500 between 2021 and 2025. According to CEI Electrical. Accident Statistics, it has reached 13,855 by 2023. Transmission line mishaps, especially inthe LT …
Published in International Journal of Electrical Power System and Technology · Vol. 10, Issue 1, 2024 · pp. 8–13 Read article
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Importance of Fiber in Human Health
Abstract: Fiber is an essential component in modern science and daily life, contributing significantly to both human health and technological advancement. In Dietary fiber is an essential component of nutrition that contributes significantly to overall health and disease prevention. It is mainly derived from plant-based sources including fruits, vegetables, legumes, nuts, and whole grains. Fiber supports healthy digestion, enhances bowel regularity, prevents constipation, and promotes the growth of beneficial intestinal microorganisms. …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 Read article
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Advanced Magnesium-Based Metallic GlassComposites for Biomedical Implant Applications: AMachine-Learning-Informed Approach
Abstract: Magnesium-based bulk metallic glasses (Mg-BMGs) combine strength, low density, and tunable degradability. Their amorphous matrix has a small plastic process zone. This zone is only about 4 μm wide. A small process zone keeps most glasses brittle. Adding a second phase is the best fix. This chapter extends Mg-BMGs to true composites. We call these Mg-based bulk metallic glass composites, or Mg- BMGCs. The chapter covers matrix engineering and interfacial …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 2, 2026 · pp. 48–65 Read article