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370 articles for “absorbance”
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Phosphorescence of Carbon Nanodots – The Phenomena and the Applications
Abstract: Photoluminescence has emerged as a fundamental phenomenon in modern biomedical science, enabling advanced diagnostic, therapeutic, and theranostic applications through light–matter interactions at the nanoscale. The ability of photoluminescent materials to absorb electromagnetic radiation and emit light at distinct wavelengths has been widely exploited in bioimaging, biosensing, drug delivery tracking, and photodynamic therapy. Among various photoluminescent nanomaterials, carbon nanodots have attracted significant attention due to their strong emission intensity, tunable fluorescence, …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 01–05 Read article
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A Survey on Hydrogen Storage System using Composite Material and its Alloys
Abstract: The transition to a carbon-neutral energy landscape hinges on the ability to store hydrogen safely, densely, and reversibly. While high-pressure tanks and cryogenic vessels dominate today’s infrastructure, solid-state storage in metallic alloys offers a compelling alternative by combining high gravimetric capacity with intrinsic safety to form a composite material. This work presents a systematic investigation of a family of reversible hydrogen-absorbing composite material alloys—principally Mg-based intermetallics (Mg₂Ni, MgFeMn) and TiV-based …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 28, Issue 2, 2025 · pp. 35–42 Read article
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Experimental Investigation of Polymer Composite-Based Protective Structures for Mitigating Crash-Induced Mechanical Abuse in Lithium-Ion Batteries
Abstract: The objective of this paper is to determine the effectiveness of using polymer composite protective structures to protect against the mechanical abuses associated with crash impacts that affect lithium-ion batteries in terms of their structural integrity and their overall safety. In addition to their use in electric vehicles, lithium-ion batteries are also being increasingly used in renewable energy-based energy storage systems because they have high energy densities, long lifetimes, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 113–132 Read article
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Sustainable Carbon Materials for Catalysis, Energy Conversion, and Environmental Remediation
Abstract: Among the most ancient and adaptable materials used by humans, carbon finds use in a wide range of industries, including electronics, energy production, medicine, water purification, air filtration, and catalysis. Among them, activated carbon's highly developed microporous structure, remarkably large specific surface area, and adjustable surface functions have drawn a great deal of attention from both science and industry. Activated carbon materials have been widely used as molecular sieves, adsorbents …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 2, 2026 · pp. 47–52 Read article
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Tailoring the Compressive Behavior of Tetrachiral Auxetic Structures Through FDM Process-Parameters
Abstract: This research evaluates how fused deposition modeling (FDM) fabrication process parameters affect the compressive behavior of tetrachiral auxetic structures created from Polylactic Acid (PLA). Auxetic materials have several useful properties, including reversible deformation and high-energy absorbing capabilities, which are beneficial to creating ultra-lightweight structural, protective, and shock-resistance designs. Among the available auxetic topologies, the tetrachiral configuration is particularly attractive for engineering use, because its rotation-dominated node–ligament deformation gives a negative …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 58–70 Read article
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A Mathematical Perspective on Recent Cloud-Computing Trends for Scalable and Secure Social-Media Platforms
Abstract: Cloud computing underpins modern social-media platforms by providing elastic compute, storage, and data-processing pipelines capable of absorbing highly bursty workloads. This paper surveys recent cloud-native trends—serverless and event-driven design, container orchestration, edge/CDN offload, streaming analytics, and privacy-enhancing security controls—and formalizes their impact through a compact mathematical model. We express workload volatility using arrival-rate functions, use queueing-based capacity sizing to derive auto-scaling rules, and formulate an optimization objective that balances cost …
Published in Recent Trends in Mathematics · Vol. 3, Issue 2, 2026 · pp. 35–40 Read article
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Solar Heat Pipe Design and Heat Loss Analysis
Abstract: Abstract: This paper is detailed on the design and heat loss analysis of solar heat pipe. Solar heat pipe is thermal device which use to transfer abundant amount of solar energy to working fluid through very smaller cross section area. Solar heat pipe server so many applications in engineering, i.e., water heating system, aerospace application, refrigeration and air conditioning and process industries. The design of heat tube includes finding diameter …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 24–28 Read article
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AEROGELS – A VALUE ADDITION TO HARVEST SOLAR ENERGY
Abstract: Aerogels are a class of synthetic porous ultralight material that was created in 1930 and derived from a gel, in which the liquid component has been replaced with a gas without collapsing the gel structure by freeze-drying. It is made of silica, but carbon, iron oxide, gold, copper, polymer etc. can also be used. During freeze drying the liquid in the gel is slowly dried off without collapsing the solid …
Published in Journal of Thermal Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 23–39 Read article
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Biosorption of Fluoride from Aqueous Solution Using Ulva fasciata sp.: A Marine Green Algae
Abstract: Water is a useful and vital natural resource for sustaining life and environment that we have always thought to be available in abundance and free gift of nature. Enhanced industrial activity during recent decades has led to the discharge of unprecedented volumes of industrial waste water, which is a serious cause of environmental degradation. Excessive fluoride concentrations have been reported in ground waters of more than 20 developed and developing …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 45–53 Read article
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Dielectric Studies on Magneto-elastomer Composites Filled with Soft Ferrites
Abstract: Magneto-elastomer composites are flexible magnetic composites which can be synthesized by incorporating ferrites into elastomers. These composite materials are in par with their ceramic counter parts and are potential substitute for ferrites in various applications. Advantage of these materials is the processability and mouldability into desired shapes. Dielectric property of elastomers is modified with the incorporation of soft ferrites like nickel ferrite. They can be used as microwave absorbing materials. …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 1, 2022 · pp. 1–11 Read article
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Study of Two-distinct Automotive Bumper Beam Designs during Low Speed Impacts
Abstract: Bumper beam is one of the key components in the automotive bumper system, which plays an important role in crash as a protection for occupants and a car's frontal compartment by absorbing impact energy. The most critical parameters, including material, thickness, and shape and impact condition are studied in this paper for the design and analysis of an automotive front bumper beam to enhance the low-velocity impact crashworthiness design. Two …
Published in Journal of Automobile Engineering and Applications · Vol. 7, Issue 3, 2020 · pp. 16–28 Read article
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Theoretical and Experimental Analysis of PMDC Motor in Hybrid Electric Vehicles
Abstract: In this modern world the applications of the electric motors have been very tremendous. The Auto mobile world is now switching from IC engine technology to hybrid electric technology. There has been enormous usage of high capacity electric motors in heavy load vehicles but a very small amount of work has been done in the sector of low load carrying vehicles like Hybrid electric rickshaw. Thus in this discussion we …
Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 8–19 Read article
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Active and Passive Automotive Safety: A Technical Review
Abstract: Safety of an automobile is one of the important areas while designing a vehicle. This paper gives an overall view of the different safety features that are taken care of while designing a vehicle. Available technologies of different active and passive safety features were analyzed. These technical features once incorporated in design not only help in avoiding the accidents but also reduce the fatigue caused to the driver which further …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 10–19 Read article
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Deflection Analysis of the Leaf Spring Suspension System with the Combination of Helical Springs
Abstract: An efficient and optimized leaf spring suspension system for heavy vehicles must have low deflection but good damping capacity of absorbing shocks and jerks. In this research article, deflection analysis of a modified leaf spring suspension system with the combination of helical spring model is presented. To furnish this end, in the typical leaf spring suspension system model, a helical spring at each side of the master leaf is incorporated. …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 21–30 Read article
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Analytical Design of 1 kW Capacity Lithium Bromide/Water Absorption Refrigeration System
Abstract: AbstractIn current era, the energy scarcity is the key concern. In this context, new alternative environment-friendly energy resources have to be explored. The researchers are focusing more on effective and efficient use of energy. The difference in demand and production of energy opens a new arena of heat recovery systems. Vapour absorption refrigeration systems (VARS) are one of the prominent heat recovery systems powered by heat, and can be powered …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 36–49 Read article
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Fresnel Lens with Advanced Fabricated Setup for Day Long Production of Hot Water
Abstract: AbstractThis work has been aimed to tap the solar energy source from Fresnel lens and utilize it to produce hot water or steam. The fabricated setup consists of a large spot Fresnel lens which concentrates the sun's rays into a 1 cm2 square spot onto a copper tube with temperature reaching up to 200°C. This concentrated heat is focussed on copper tube absorber to heat the water, the hot water …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 9, Issue 1, 2018 · pp. 15–19 Read article
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Heat Transfer in Single Effect Solar Assisted LiBr-H2O Absorption Refrigeration Cycle
Abstract: This paper describes the heat transfer model of LiBr-H2O vapour absorption cooling system implemented in engineering equation solver (EES). The detailed first law analysis of the system is presented. Effects of operating temperature and pressure on the heat load in various components, coefficient of performance (COP), and circulation ratio of the system have been carried out. Impact of solution heat exchanger effectiveness on system performance is also studied. The study …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 1–11 Read article
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Recent Developments in Solar Photovoltaics and Thermal Hybrid Technology
Abstract: The electrical performance of solar PV panel decreases with increase in the panel/module temperature which is cause of concern in the summer season. To decrease the effect on electrical performance due to increase in module temperature, heat is extracted from the module and used as thermal energy. Heat exchanger or heat extraction device is put on the rear surface of the PV panel and working fluid or coolant is flowed …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 14–34 Read article
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Light Weight Applications of Sandwich Panels in Various Industries
Abstract: Sandwich construction is of particular interest and widely used, because the concept is very suitable and amenable to the development of lightweight structures with high in-plane and flexural stiffness. Sandwich panels consist typically of two thin face sheets (or facings, or skins) and a lightweight thicker core. Commonly used materials for facings are composite laminates and metals, while cores are made of metallic and nonmetallic honeycombs, cellular foams, balsa wood …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 1, 2018 · pp. 9–14 Read article
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Thermal Adsorption Processing of Hydrocarbon Residues
Abstract: The raw materials of secondary catalytic processes must be pre-refined. Among these refining processes are the deasphalting and demetallization including their thermo-adsorption (or thermo-contact adsorption) variety. In oil processing, four main processes of thermo-adsorption refining of hydrocarbon residues are used—Asphalt Residual Treating- residues deasphaltizing (ART), Discriminatory Destructive Distillation (3D), developed in the US; Adsorption-Contact Treatment (ACT) and Express Thermo-Contact Cracking (ETCC), developed in Russia. ART and ACT are processes with …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 1, 2017 · pp. 6–10 Read article