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1017 articles for “Metallic”
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Mercury-induced Biochemical Changes in Perna viridis Exposed in Chronic Toxicity Test
Abstract: In the present study, the Asian green mussel, Perna viridis, was exposed to 50, 75, 113, 160 and 253 µg/L Hg concentrations under chronic toxicity for the assessment of biochemical biomarkers. Higher levels of glutathione S-transferase (GST), reduced glutathione (GSH), lipid peroxidation (LPO) and lower levels of protein, catalase (CAT) and acetylcholinesterase (AchE) were found. The values were found to be significant at P < 0.01. This study suggests that …
Published in Research and Reviews: A Journal of Toxicology · Vol. 2, Issue 1, 2012 · pp. 15–22 Read article
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Levels of Environmental Pollutants and Urinary 1-Hydroxypyrene among Foundry Workers
Abstract: Environmental and biological monitoring was conducted to measure the Total Suspended Particulate Matter (TSPM), SO2,NOx and 1-OHP among foundry workers. Among the various sampling locations melting (2466 μg/m3) and fettling (2951 μg/m3) recorded higher concentration of TSPM. The concentration of NOx and SO2 ranged between 288– 352 μg/m3 and 3.11-10.97μg/m3,respectively. Among the various heavy metals analysed, the concentration of zinc and nickel was the maximum. Although the environmental monitoring study …
Published in Research and Reviews: A Journal of Toxicology · Vol. 4, Issue 1, 2014 · pp. 8–15 Read article
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Modeling of Overvoltage Protection by Lightning for a Grid-tied Solar Power System: A case of Vietnam
Abstract: AbstractThe solar power system has been widely developed due to its environmental friendliness and sustainability. Normally, PV panels would be preferable to set up on rooftop of building or free-standing in unsheltered areas. Therefore, the negative impacts on these systems from bad weather conditions, like storms and lightning, have been evident. Vietnam is located in the region of tropical monsoon weather, especially one of the three strongest thunderstorm areas in …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 27–40 Read article
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Sub-nano Regime DG-MOSFETs
Abstract: AbstractThe significance of device performance of Gallium Nitride based double gate metal-oxide- semiconductor field-effect-transistor has been executed. The simulations were done by Silvaco Atlas simulation software with focusing on non-equilibrium green function (NEGF). Multiple gate length (LG=9.1 nm) was observed to distinguish the transfer characteristics curve. The other concentration was observed for device ON-State Current (ION), OFF-State Current (IOFF), Drain Induced Barrier Lowering (DIBL), Sub Threshold Slope (SS) and Electric …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 3, 2018 · pp. 1–6 Read article
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Thermo-Fluid Characterization of Corrugated U-Tube Shell-and-Tube Heat Exchanger with Polymer Composite Tube Wall: A Combined CFD and Experimental Investigation
Abstract: Shell-and-tube heat exchangers built with metallic tubes work well thermally, but corrosion problems, extra weight, and the inability to adjust the wall’s thermal properties through material choice remain genuine engineering headaches, particularly for corrosive or weight-critical applications. Over the past few years there has been a fair amount of interest in replacing metal tubes with polymer composite alternatives, since blending thermally conductive fillers — graphite nanoplatelets, boron nitride platelets and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 859–873 Read article
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Development of Biodegradable Stents from Polymeric Composites for Cardiovascular Applications
Abstract: Cardiovascular diseases are still one of the leading health complications in the world, and coronary artery disease remains one of the toughest ones to crack. The introduction of stent implantation in interventional cardiology is a breakthrough concept which helps to restore blood flow and maintain patency of the arteries. On the other hand, long-term results of bare-metal stents and drug-eluting stents indicate the presence of complications, such as in-stent restenosis, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 181–191 Read article
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Integrated Computational and Bio-catalytic Transformations: DFT-Guided Mechanistic Insights, Machine Learning, and Nano-biocatalyst Engineering for Sustainable Catalysis
Abstract: Computational catalysis has emerged as a transformative scientific discipline that integrates quantum chemistry, molecular modeling, machine learning, and density functional theory (DFT) to understand catalytic mechanisms and design highly efficient catalytic systems for sustainable industrial applications. The increasing global demand for environmentally responsible chemical manufacturing has accelerated research on advanced catalytic materials including transition metal catalysts, metal–organic frameworks (MOFs), homogeneous catalysts, heterogeneous systems, and bimetallic catalysts involving nickel and iron. …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 2, 2026 · pp. 36–44 Read article
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Conductive Polymer Nanocomposites for Wearable Cardiac Monitoring Devices
Abstract: Wearable cardiac monitoring devices are increasingly important tools for non-invasive, continuous assessment of cardiac health. Their growth is driven by increases in the incidence of arrhythmias and by a great demand for remote monitoring. This is changing with the use of conductive polymer nanocomposites (CPNCs). They combine physical properties of mechanical flexibility, high electrical conductivity, and good biocompatibility resulting in high precision, and comfortable sensing. CPNCs combine conductive polymers with …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Thin-Film Quantum Photonic Technologies for Quantum Teleportation
Abstract: One of the most important protocols in distributed quantum computing and quantum communication is quantum teleportation, which allows quantum information to be sent between distant nodes without actually sending the quantum particle. The teleportation process is fundamentally based on quantum entanglement, Bell state measurements, and classical communication channels, which collectively allow the accurate reconstruction of an unknown quantum state at a remote location. In recent years, rapid progress in integrated …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 01–19 Read article
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Thermo-hydraulic Performance of Multi-Pass Double-Pipe Heat Exchangers: Integrating Polymer Composite Tube Wall Materials via CFD Parametric Study and Experimental Validation
Abstract: Metallic materials such as steel and copper have traditionally dominated heat exchanger manufacturing because of their excellent thermal conductivity, mechanical strength, and long-established industrial reliability. However, their high weight, susceptibility to corrosion in aggressive operating environments, and inability to provide tunable thermal properties have motivated interest in alternative materials for next-generation thermal systems. Thermally conductive polymer composites reinforced with graphene nanoplatelets (GNP), boron nitride (BN), and carbon-based fillers offer an …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Advanced Mathematical Modelling of Nanoscale Semiconductor Devices for Low-Power Microelectronic Applications
Abstract: With the ongoing scaling down of semiconductor devices, there is an increasing need for accurate mathematical models of electrostatic control, carrier transport, leakage current, and power consumption at the nanometer scale. As the sizes of semiconductors continue to decrease, there is a growing need for accurate mathematical models of electrostatic control, carrier transport, leakage current, and power consumption at the nanometer scale. In this work, a common mathematical modelling approach …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 2, 2026 Read article
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Harnessing the Bioactive Potential of Calotropis gigantea and Calotropis procera
Abstract: The medicinal plants of the Apocynaceae family Calotropis gigantea and Calotropis procera have gained more and more interest as source of bioactive molecules for biomedical applications like cancer therapy. They have various pharmacological activities, which are believed to be linked to various phytochemical constituents such as cardenolides, cardiac glycosides, flavonoids, triterpenoids, steroids, phenolic compounds, alkaloids, and proteins in their latex. The recent molecular and cellular studies show that extracts and …
Published in International Journal of Molecular Biotechnological Research · Vol. 4, Issue 2, 2026 Read article
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Thermo-Hydraulic Performance of a Double-Pipe Double-Pass Heat Exchanger using Annular Fins and Graphite-filled Epoxy Composite Tubes
Abstract: Double-pipe heat exchangers remain one of the most widely adopted thermal devices because of their simple construction, operational reliability, and ease of maintenance. Nevertheless, their performance is often constrained by the limited heat transfer area of smooth tubes and the long-term challenges associated with metallic materials, including corrosion, scaling, and structural weight. Recent advances in thermally conductive polymer composites provide an opportunity to overcome these limitations by replacing conventional metals …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Zeolite-Y Encapsulated Copper (II) and Cobalt (II) Species as Hybrid Nano-catalysts: Structural and Catalytic Aspects
Abstract: Special properties inherent to zeolites in facilitating the construction of novel upramolecular assemblies by encapsulation of guest molecules (metal complexes) into their large cages can be utilized to use these assembled materials as novel catalysts. These modified solids have the advantages of both behaving as the homogeneous and the heterogeneous catalytic system. In the present work, copper (II) and cobalt (II) complexes of 2-amino ethanoic acid (2-AEA) encapsulated in the …
Published in Journal of Catalyst & Catalysis Read article
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Substantial Enrichment of Mechanical, Thermal and Electrical Properties of Thermoplastic Polyester Elastomer by Melt Blending with Nano-ZnO
Abstract: Polymers are more reinforced with nano metal oxides, a completely flexible composite of engineering that simplifies the way of exhibiting good mechanical and chemical features. Polymer mixtures represent a very vital field in the handling of innovative ingredients, which have better features than net polymers. Polymer mixtures are able to deliver ingredients with prolonged useful features beyond the range that can be achieved from a single polymer equivalent. A methodical …
Published in Emerging Trends in Chemical Engineering Read article
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Advanced Quantitative Analysis of Dynamic Recovery during Warm Working of FCC Alloys
Abstract: Metal working processes of warm working require an advanced quantitative analysis of dynamic and static recovery of dislocations to control microstructures and crucial shape forming properties. Feasibility of dynamic recovery by thermal glide and static recovery by climb of constricted jogs, applicable to ausforming, nano bulk forming by SPD and normalizing has been addressed to design new steels, used for hulls, and tribologically superior bearings. Predictive dislocation recovery analysis shows …
Published in Journal of Materials & Metallurgical Engineering Read article
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Design and Simulation of Forging Die Towards Improving Life of Closed Die
Abstract: Forging is the metal forming process which is used for forming complex shaped component with geometrical accuracy. More than fifty percent of the forgings are processed through this way. Forged components required in many engineering sectors, most of them in the automotive sector. The majority of the safety critical component and load bearing structural components are process through it. By using forging process production of complex component is faster with …
Published in Journal of VLSI Design Tools and Technology Read article
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Design and Analysis of S-Glass Heat Exchanger
Abstract: This research work focuses on the composite material named S-Glass fibre Heat Exchanger, since the existing designs of heat exchangers are generally made up of metals which produce a critical amount of heat loss to the surrounding from the shell. These are also less corrosive resistant, have low life and high weight. To overcome these drawbacks, use of composite materials has become essential. There is a need to redesign it …
Published in Journal of Thermal Engineering and Applications Read article
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Review in Friction Stud Welding of Aluminium to Steel
Abstract: The demand for friction stud welded aluminum/steel joints has increased in many significant applications including cryogenics, structural engineering, spacecraft, rocket fuel tanks and high vacuum chambers owing to their superior properties. In automobile engineering, there is a requirement to join a mild steel earthing pin which is in the shape of a stud to an aluminum car body. Aluminum and steel was considered to join using friction stud welding. This …
Published in Journal of Thermal Engineering and Applications Read article
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Evaluation of Tectona Grandis Leaf Extract As A Green Corrosion Inhibitor for Aluminium in 1M NaOH
Abstract: A kind of tropical hardwood tree called the Tectona grandis tree that is indigenous to India. The name "teak tree" is another common name for this kind of tree. It is a member of the plant family that is referred to as Lamiaceae. The primary purpose of this research is to investigate whether or not the plant extract has a corrosion-inhibiting quality. In this study, an aqueous extract of Tectona …
Published in Journal of Polymer & Composites · Vol. 2, Issue 2, 2023 · pp. 41–50 Read article