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950 articles for “energy materials”
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Experimental Evaluation of MDM@Gd2O3:Eu3+ and Protein@MDM@Gd2O3:Eu3+ Functional Nanomaterial
Abstract: Lanthanide cation like Eu3+ (europium Xe 4f66s0) doped functional nanomaterials of lanthanide oxides especially of gadolinium oxide (Gd2O3) as nanorods capped with monodispersed macromolecule (MDM) like polyvinylpyrrolidone (PVP) coated with natural biopolymers like proteins as human serum albumin (HSA) have been the most demanding and applied nanomaterials in areas of the biosensor, optical distinguisher, electronic fluoresces, upconversion, and surface plasmonic resonance (SPR) nanomaterials and others. The Gd3+ and Eu3+lanthanide cations …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 214–223 Read article
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Examination of Recycled Used Lube Oil Using Niger Delta Locally Source Material
Abstract: Present research work was conducted to demonstrate in detail the acid-clay recycling processes of used lube oil techniques and treatment. Adequate attention is given to these techniques employed in the recycling of used lube oil. A major menace today is the uncontrolled dumping and improper disposal of used lube oils, the magnitude which is conservatively estimated to be very high and therefore threatens our environmental existence. A comparative study was …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 9–14 Read article
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Next-Generation Conductive Polymer Composites for Flexible and Wearable Electronics
Abstract: The rising demand for flexible and wearable electronics has accelerated research into conductive polymer composites (CPCs) due to their lightweight nature, electrical conductivity, and mechanical flexibility. Despite significant advancements, challenges such as reduced conductivity under mechanical deformation and limited durability persist. This study aims to develop next-generation CPCs with enhanced conductivity, flexibility, and self-healing capabilities. Hybrid nanofillers—graphene, carbon nanotubes (CNTs), and silver nanowires (AgNWs)—were incorporated into bio-based conductive polymers through …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 550–566 Read article
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Comprehensive Analysis of Advanced Methods, Materials and Technologies for Portable Water Purifier in Domestic and Industrial Applications
Abstract: Safe drinking water is still a major problem in developing countries, especially in areas with water scarcity, pollution or poor infrastructure. Portable water purifiers have come to the fore as solutions that are realistic to narrow this gap providing flexibility and accessibility in household and industrial environments as well. In this study, promising techniques, materials and technologies used in portable water treatment equipment design have been reviewed. We review important …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 8–19 Read article
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Finite Element Simulation of the Cold Open-Die Forging of Sintered Aluminum Metal Powder Trapezoidal Preforms
Abstract: This paper presents finite element simulation of the forging of sintered aluminium metal powder trapezoidal preforms at cold conditions. It involves basic experimental investigations followed by the finite element simulation of the forging process under consideration by the use of DEFORM. The basic experimental work includes the fabrication of compaction die-sets, production of aluminum metal powder trapezoidal preforms and simple compression test to obtain load-deformation data. The stress-strain data was …
Published in Trends in Mechanical Engineering & Technology · Vol. 1, Issue 2-3, 2011 · pp. 18–28 Read article
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ML-Enhanced Self-Healing Fiber-Reinforced Polymer Composites with Embedded IoT Sensors for Damage Prediction
Abstract: Fiber-reinforced polymer (FRP) composites are widely used in aerospace and structural systems; nevertheless, the potential for microcracking and fatigue-induced performance degradation remains an obstacle with respect to improved service life. Traditional self-healing methods, while performing well on a chemical level, often lack real-time diagnostic awareness and adaptive control. To circumvent this, we developed a machine-learning augmented self-healing FRP composite, in which a DCPD–Grubbs catalytic matrix was combined with IoT sensor …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 188–208 Read article
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OUTLINE OF GREEN BUILDING TECHNOLOGIES
Abstract: AbstractConcern regarding environmental issues and energy consumption is been rising from last few decades. Though the world is transiting towards renewable energy, even today 60% of the worlds energy needs are met by fossil fuels only which in turn is leading to environmental concern and scarcity of natural resources. Construction sector is one of the major areas of energy consumption in this regard. Building sustainably is subject to sensible use …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 7, Issue 2, 2017 · pp. 12–16 Read article
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Carbon Fiber Impact Attenuator: A Comprehensive Design and Analysis Approach
Abstract: In the high-stakes world of Formula One competition, accidents are a sad reality. The primary causes of these accidents are violent overtaking, high speeds, and environmental factors. All of these causes result in accidents, such as a car colliding head-on with barricades, two automobiles colliding, a car skidding on a wet track, etc. Driver safety must be improved, and accidents of this nature must be avoided. One such safety elements …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 452–468 Read article
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Structural and Elasticity Study of ZnS and ZnO Nanotubes Synthesized by Density Functional Method
Abstract: A theoretical investigation on the structural and elastic property of single-walled ZnS nanotubes (SW-ZnS NTs) (with armchair and zigzag structures) and ZnO nanotubes were investigated. The stability and elastic modulus in SW-ZnS NTs and ZnO NTs were also investigated. A study was also carried out to determine the band gap energy of the nanocrystalline ZnS and ZnO. The calculation results show bond length, bond angle, strain energy, and Young’s modulus …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 39–48 Read article
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Challenges in the Commercialization of Lithium (Li)–Sulphur (S) Batteries †
Abstract: Li-S batteries can be used in drones owing to their high gravimetric energy density (2600 Wh/kg of sulphur) as well as the high theoretical specific capacity values (1674 mAh/g) values. Most of the ground breaking inventions in energy sources occurred during war time (1st September 1939-2nd September 1945), including the discovery of the famous nuclear fission process that lead to the origin of the little boy and the fat man. …
Published in International Journal of Advance in Molecular Engineering · Vol. 1, Issue 2, 2023 · pp. 26–36 Read article
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Innovative Design and Implementation of PCD-Based Drawing Dies and Tungsten Carbide Molds for Automotive Fastener Manufacturing
Abstract: This study presents an integrated engineering investigation into the design, optimization, and implementation of advanced tungsten carbide and polycrystalline diamond (PCD) tooling technologies within the cold forging and wire drawing processes at Koobesh Kavir Semnan Company, one of Iran’s leading automotive fastener manufacturers. By combining powder metallurgy principles, material flow simulation, and experimental validation, this research introduces a technological advancement that improves productivity, tool longevity, and cost-efficiency in industrial production. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 16–26 Read article
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Minimum Energy Criteria for Machining to Determine Energy-Productivity Relationship
Abstract: In this research segment, cutting rates were changed while depth of cut and feed rate remained fixed. The results of cutting using a standard uncoated carbide insert were compared. Cutting speeds were maintained at a constant. After determining the optimal cutting condition for the equipment and material. To determine optimal tool life and cutting speed, turning operations were performed. In industrial cutting operations, flank wear reduces tool life. For single-point, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 4, 2023 · pp. 81–94 Read article
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Recent Trends in Rotary Kiln and Refractory Material Patterns in Cement Production: A Review Approach
Abstract: The manufacturing of cement and other industrial operations depend heavily on rotary kilns, which use refractory materials to endure high temperatures and challenging chemical conditions. With an emphasis on their effects on durability and operating efficiency, this study looks at the most recent developments in rotary kiln technology and refractory material choices. Various rotary kiln designs, typical refractory material patterns, and the difficulties posed by kiln failures are all covered. …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 2, 2025 · pp. 27–34 Read article
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A Critical Review on Semi-solid and Solid Lubricants for Industrial Applications
Abstract: Friction materials are very important for the safe moving of automobiles and the safety of people. As the pad slides against its match, the moving energy is turned into heat by the friction. As the vehicle's speed is lost as heat in the pads and rotors, the friction at the contact slows it down. Lubricants are compounds that are applied to moving parts to reduce friction and wear. Used primarily …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 105–114 Read article
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Bioenergy and Biomass Conversion for Sustainable Energy Production
Abstract: This study delves deeply into the essential role that bioenergy derived from biomass conversion plays in achieving sustainable energy production. The primary aims of this research encompass exploring a diverse range of biomass resources, and their availability, evaluating different biomass conversion technologies (including both thermochemical and biochemical processes), analyzing the sustainability of these conversion methods, and elucidating their significant contribution towards realizing renewable energy targets. This investigation relies on an …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 2, 2023 · pp. 1–16 Read article
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High-Velocity Impact Response of CFRP and Hybrid Composites: A Comprehensive Review on Ballistic Resistance and Damage Mechanisms
Abstract: This review consolidates recent advances in the study of high-velocity impact response of carbon fiber reinforced polymer and hybrid composites. Carbon fiber reinforced polymer composites are widely applied in aerospace, automotive, and defense due to their high strength-to-weight ratio, stiffness, and durability. However, their susceptibility to impact damage such as delamination, matrix cracking, and fiber breakage limits their performance under dynamic loading. To overcome these challenges, researchers have explored reinforcement …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 100–122 Read article
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Quantifying Damage Evolution in Fiber-reinforced Composites Using Fracture Mechanics
Abstract: By evaluating the evolution of damage, such as cracks or delamination, within the material over time or under various loading situations, damage evolution in fiber-reinforced composites can be characterized using fracture mechanics. Fracture mechanics offers a framework for understanding and projecting the behavior of materials that already have damage or flaws. Since they have a high strength-to-weight ratio and unique mechanical qualities, fiber-reinforced composites are essential in many branches of …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 1, Issue 1, 2023 · pp. 26–32 Read article
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A Comparative Study of the Structure–Property Relationships in CAD/CAM Milled vs. 3D-Printed High-Performance Polymers: Impact of Molecular Orientation on Abrasive-Wear Resistance
Abstract: Background: The transition from subtractive to additive manufacturing in prosthetic dentistry has introduced significant variations in the macromolecular architecture of high-performance polymers. While CAD/CAM milling utilizes high-density, industrially polymerized blocks, 3D printing (Additive Manufacturing) relies on layer-by-layer deposition, which may induce anisotropic molecular orientation. This retrospective study investigates how these distinct manufacturing “thermal histories” influence the long-term abrasive-wear resistance of PEEK and PEKK restorations. Materials and Methods: Data were retrospectively …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 133–140 Read article
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Intelligent Electromagnetic Braking System
Abstract: AbstractThe principle of conventional braking system involves the conversion of kinetic energy into heat. It uses development of contact friction for retardation. When the brake is applied, the brake shoes having a friction material lining are forced by hydraulic wheel cylinders against the inner surface of a rotating drum. The result of this contact produces friction, enabling the vehicle to slow down and stop. The design consideration is such that …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 2, 2018 · pp. 25–30 Read article
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Source of energy used to produce synthetic fuels is renewable energy
Abstract: The search for the next major energy solution is undoubtedly underway as oil and fossil fuel resources are depleting globally. It is possible that there won’t be a perfect energy that is always available and does not destroy the environment, nor will there be a panacea to the world’s energy problems. When opposed to traditional oil-based fossil fuels, synthetic fuels, also known as synfuels, provide both benefits and cons. All …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 41–45 Read article