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526 articles for “metal”
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Differential Model of Wave Vibration on Strings and Rods
Abstract: Vibration, as a physical phenomenon, plays a multifaceted role in both natural and engineered systems. Beyond its essential contribution to communication through sound and speech, it finds critical application in various technological domains. For instance, in the design of stringed musical instruments such as violins and guitars, precise manipulation of string vibrations defines tonal quality and musical resonance. Similarly, metal rods in tuning forks exhibit vibrational properties that are finely …
Published in Research & Reviews : Journal of Physics · Vol. 14, Issue 1, 2025 · pp. 17–21 Read article
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Environment, Health, and Carcinogenic Concerns in the Light of Microvita Theory
Abstract: This study examines the relationship between environmental health, carcinogenic risks, and P.R. Sarkar’s microvita theory, introduced in 1986. Microvita are described as subtle entities that influence both physical and mental realms, potentially interacting with environmental factors and playing a role in health and disease, particularly in the process of carcinogenesis. By merging this philosophical concept with modern scientific insights, the study offers a fresh perspective on addressing environmental hazards that …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 15, Issue 2, 2025 · pp. 8–18 Read article
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Innovative Approaches to Luminescence: Exciton-Polariton Lasers and Quantum Confinement in 2D Materials
Abstract: The phenomenon known as luminescence occurs when an external energy of any kind excites a substance's electronic state, and the excited energy is released as light. Luminescence is the absence of heat produced by light emission. Luminescence comes in a variety of forms, including thermoluminescence, bioluminescence, and chemiluminescence. Examples of luminescence include flat-screen TVs, LED lights, and bioluminescent phytoplankton. The measurement of the emission spectrum produced when previously excited atoms …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 2, Issue 1, 2024 · pp. 26–33 Read article
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Assessment of Sustainable Composite for UAV structural Application
Abstract: Now-a-days aligned with global mission the growth of Unmanned aerial vehicle (UAV) application is enormous in the field of agriculture, defence, surveying etc., This research work investigates the improvement in strength of polymer matrix composite material of adding epoxy polymer resin with novel bio fibers such as Tamarindus and Morinda. The composite material was fabricated by using hand-layup method later its mechanical properties are analysed by numerical method as well …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 359–377 Read article
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Review And Analysis of Application of Conductive Polymer Composites in Power-Efficient RF Circuits For 5G PAPR Reduction
Abstract: The need for low power RF circuits has gained more importance in the background of fifth-generation (5G) wireless communication systems, since the inherent PAPR characteristic of 5G signals—especially when using orthogonal frequency division multiplexing (OFDM) based techniques—becomes high. This high PAPR limits the efficiency of RF power amplifiers, increases power consumption, and induces thermal management challenges. In this context, conductive polymer composites (CPCs), based on advanced polymer matrices integrated with …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 111–125 Read article
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Rheumatoid Arthritis and Stem Cell Therapies Perspectives for It
Abstract: Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by systemic inflammation, primarily affecting synovial joints, leading to joint destruction and systemic complications. The pathogenesis involves immune system dysregulation, autoantibody production, and enzymatic imbalances. Enzymes, including matrix metalloproteinases (MMPs), serine proteases, and kinases, play crucial roles in these processes. Their dysregulation contributes significantly to disease progression through the imbalance of pro-inflammatory cytokines, oxidative stress, and extracellular matrix (ECM) degradation. MMPs, …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 15, Issue 2, 2025 Read article
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A Review on Characterization of Mechanical Behavior of AA5083 Through Equal Channel Angular Pressing at Different Channel Angles
Abstract: Materials that have been enhanced through traditional techniques like strain hardening, the addition of solutes, altering grain size through precipitation and refining are commonly utilized in industrial applications. However, there is a restriction on the extent of deformation that these traditional techniques can impose on a material. This research centered on examining the primary mechanical characteristics of aluminum alloys when polycrystalline materials incorporate an extremely fine grain size. By producing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 54–68 Read article
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Chitosan-based Polymer Composites for Antibacterial and Antiviral Drug Applications
Abstract: The natural substance chitosan is made from chitin. It is used a lot in medicine because it is safe for the body, breaks down naturally, and kills germs. To find out how chitosan-based polymer mixes could be used to make drugs that kill germs and viruses, this study looks into them. By reacting with the cell walls of bacteria, chitosan has been shown to kill bacteria and stop viruses from …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 609–620 Read article
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Biopolymer-Based Nanocomposites for Oral Drug Delivery
Abstract: Because they are biocompatible, biodegradable, and can hold a lot of different healing agents, biopolymer-based nanocomposites are looking like a good way to give drugs orally. These materials are made up of natural polymers mixed with nanoparticles. They have many benefits for drug delivery systems, such as making drugs more soluble, controlling when they are released, and making enclosed drugs more stable. Drug release rates may be altered by mixing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 400–412 Read article
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Tackling Water Hardness: Understanding the Issue for Sustainable Development
Abstract: Hard water poses a serious threat to human health and industrial operations. The pervasiveness of water hardness, characterized by elevated concentrations of calcium and magnesium ions, originates from seepage and runoff from soils, as well as polyvalent metallic ions from sedimentary rocks. These minerals, while essential in moderate amounts, can become problematic when consumed in excess. Epidemiological studies have established correlations between excessive consumption of calcium and magnesium and increased …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 2, 2025 · pp. 73–79 Read article
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Optimization of Type-4 Plastic Liner Composite Overwrapped Pressure Vessel Design
Abstract: Composite Overwrapped Pressure Vessels (COPVs) are prominently utilized for the storage of gases at high-pressure. Their widespread adoption is because they are significantly lighter weight compared to complete metal counterparts, but requires specialized design, and manufacturing process. This research employs finite element modelling to analyse the stress and failure assessments on a specific Type-IV COPV with plastic liner as core cylinder. This study aims to optimize COPV design by considering …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 405–412 Read article
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Exploring Sustainable Fuel Production from Waste: A Feasibility Study in Zimbabwe
Abstract: Some organisms are in danger of going extinct, and environmental pollution from waste plastics, tires, and used lubricating oils has significantly contributed to the decline of biodiversity. Tires, plastics, and spent oil all contribute significantly to environmental deterioration, and this issue has been linked to improper treatment and disposal of these materials. Only 15% of the 200 auto technicians surveyed for this study acknowledged that they reuse spent oil, 5% …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 3, Issue 1, 2025 · pp. 30–38 Read article
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Advancements in Thermal Performance of Solar Flat Plate Collectors: A Comprehensive Review
Abstract: Over the past couple of years, solar flat plate collectors (FPSCs) have undergone significant improvement regarding their thermal performance. The review evaluates the improvement of materials such as advanced coatings; metals with a high thermal conductivity; and nanostructured additives. New cover technologies, such as polymeric films and anti-reflection coatings, are discussed, as well as novel insulation technologies such as aerogels and vacuum panels. Also of interest are phase-change materials and …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 2, 2025 · pp. 10–14 Read article
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Crossroads of Ecology and Medicine: Evaluating Pollutant-Induced Risks to Biodiversity and Human Health
Abstract: Environmental pollution has emerged as a central challenge at the crossroads of ecology and human medicine. The rapid pace of industrialization, urbanization, and agricultural intensification has led to an unprecedented release of pollutants into the air, water, and soil—triggering cascading effects on ecosystems and human health. Pollutants such as particulate matter, heavy metals, pesticides, microplastics, endocrine-disrupting chemicals, and persistent organic pollutants not only degrade biodiversity but also exert multifaceted health …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 3, Issue 1, 2025 · pp. 41–53 Read article
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Development and Characterization of Antimicrobial Polymer Composites for Food Packaging Applications
Abstract: The increasing demand for sustainable and antimicrobial food packaging materials has led to extensive research in polymer-based composites. This study focuses on developing a polyethylene terephthalate-ethylene vinyl acetate (PET-EVA) composite reinforced with metal oxide nanoparticles (MONs), including Cu₂O, ZnO, and MgO₂. These nanoparticles were selected for their antimicrobial properties and ability to enhance the functional characteristics of the composite. Structural, chemical, mechanical, and barrier properties were extensively evaluated to determine …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 86–93 Read article
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Advances in Polymer-Based Orthodontic Materials for Enhanced Treatment Efficiency
Abstract: Polymers, particularly shape-memory polymers, fiber-reinforced composites, and elastomeric materials, provide enhanced mechanical properties such as flexibility, durability, and controlled force application, leading to improved treatment outcomes. These materials offer superior biocompatibility, reducing irritation and discomfort for patients while ensuring efficient and predictable tooth movement. It is important to note one of the key advancements in orthodontics is the use of shape-memory polymers, which can respond to temperature or external stimuli, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 1016–1024 Read article
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Electrodeposition and Magnetron Sputtering of Rhenium Coatings on Carbon-Carbon Composites for Enhanced Corrosion Resistance and Structural Integrity
Abstract: It is well known that tailored materials are gaining in-roads to aviation and other manufacturing industries where stringent requirements are to be met, due to high temperature erosion, which is a problem. In order to counter these issues, materials which can resist a very high temperature are to be sought. One of the several methods to combat this high temperature issue is to provide a metallic refractory material coating on …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 35–44 Read article
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Investigation and Concerns on the Mechanics Behind Grain Refinement During ECAP Operation with Applications to Polymers
Abstract: Materials science and engineering have studied Equal Channel Angular Pressing (ECAP) grain refining. This abstract discusses important findings and concerns about grain refining mechanics during ECAP.A adaptable severe plastic deformation method; ECAP refines grain patterns in many metallic materials. Many researches have attempted to understand this phenomenon's complex mechanisms. Microhardness and microstructure (morphology) of AL alloy increase with the increase in pass numbers. It is observed that the mechanical property …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 1–11 Read article
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Low density polyurethane based antistatic coating for PU flexible foam for launch vehicles
Abstract: Polyurethane (PU) is a multi functional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. Furthermore, the antistatic property of PU coatings can be improved by the addition of conductive fillers into matrix thus broadening its application in the manufacture of electronic products, aerospace systems and daily necessities and so on. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 2, 2025 · pp. 25–30 Read article
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Smart Environmental Noise Monitoring System Using IoT and Machine Learning for Urban Pollution Control
Abstract: Human race has steadily evolved over past centuries. Development of new technology, vigorous research, consistent efforts, indomitable will to find solutions for the problems, are the key factors to shape our future in way that everyone gets safe, secure and satisfactory life. Construction industries provides basic but most valuable service or product or we can say that construction industries fulfill the basic needs of individual and group of people by …
Published in Journal of Structural Engineering and Management · Vol. 12, Issue 3, 2025 Read article