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82 articles for “UV rays”
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A Review on Benefits of Herbal Ingredients used in Sunscreen
Abstract: The present review focuses regarding the benefits of herbal ingredients in the formulation of sunscreen. Sunscreens are called as sunburn or sun blocker creams. There are three different forms of ultraviolet radiation: ultraviolet A, ultraviolet B, and ultraviolet C. The various forms of ultraviolet light are thoroughly reviewed in this page. Its function is based on their potential to absorb, scatter the rays from sun. Herbal cosmetics are also known …
Published in Research & Reviews : Journal of Herbal Science · Vol. 12, Issue 1, 2023 · pp. 1–7 Read article
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Study of Global Solar Radiation Estimation based on Artificial Neural Networks Techniques
Abstract: AbstractSolar Radiation data received by earth in the form of x-rays, UV-rays, infrared rays is a prominent and useful data as it gives the information about the amount of energy received from sun at the earth. Artificial Neural Network (ANN) is brain inspired technology which learns and performs in a way similar to the way our human brain performs. Sun’s energy is of utmost importance and is freely available in …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 1, 2020 · pp. 26–31 Read article
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Prediction of Transformer Oil Parameters Using UV/VIS Spectroscopy Graphs
Abstract: AbstractUltraviolet–visible rays (UV/VIS) spectroscopy is a method based on a spectrum, which forms a graph between radiations absorbed by the material and the wavelength of the radiations. UV/VIS spectroscopy is able to tell the impurities or decay contents present in any sample material. In this paper, we have used data collected from various tests performed on the transformer oil samples and compared these results with the UV/VIS spectroscopy results. This …
Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 35–41 Read article
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Multidirectional Autonomous UV Sanitation Robot
Abstract: In the healthcare environment, the spread of infectious diseases through respiratory particles poses a significant challenge to maintaining clean and safe surroundings. With shortages in surface disinfectants, the traditional manual cleaning methods have been put under scrutiny, as they often prove inadequate and leave residual contamination. Moreover, the constant operation of healthcare facilities, coupled with staff turnover, increases the risk of virus transmission among healthcare workers. To address these concerns, …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 1, Issue 1, 2023 · pp. 1–10 Read article
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Photonic Polymer Composites for Light-Modulating Displays and High-Throughput Optical Data Transmission
Abstract: The combination of PMMA-based composites recently received substantial attention from the photonic applications field since these materials combine excellent optical transparency, mechanical flexibility and straightforward fabrication capabilities. The material performance of pure PMMA requires functional additives because it shows limited thermal properties and optical attenuation in addition to sensitivity against UV rays. The research explores developmental pathways for PMMA composites through combined use of nanoparticles and electro-optic polymers with dopants …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 838–860 Read article
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A Review of Herbal Photoprotective Agents: From Traditional Knowledge to Modern Sunscreen Formulations
Abstract: Continuous exposure of skin to UV rays leads to tanning, premature aging, sunburn, pigmentation, and skin cancer. Sunscreens are widely used to protect the skin from these harmful stimuli. However, sunscreen components may interfere with other health concerns like irritation, itching, allergic reactions, and distinct environmental damage. This major concern initiated the introduction of herbal photoprotective agents, which are eco-friendly, safer for use, and rich in antioxidants (preventing free radicals). …
Published in Research & Reviews : Journal of Herbal Science · Vol. 15, Issue 1, 2026 · pp. 8–13 Read article
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A Review On Wonder Plant Aloe Vera
Abstract: For millennia, people have utilized and appreciated the health, aesthetic, therapeutic, and skin- care benefits of aloe vera plants. Aloe is a plant that grows in dry regions of Africa, Asia, Europe, and America. It has approximately 300 species. Aloe barbadensis miller is the botanical name of aloe vera. It is a perennial, xerophytic, succulent, shrubby or arborescent plant with pea-green hue that is a member of the Asphodelaceae (Liliaceae) …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 11, Issue 1, 2024 · pp. 1–9 Read article
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Hybrid Solar PV–Wind Energy System: A Performance Study
Abstract: The solar PV and, wind energy hybrid technology is based on the concept of a modular, scalable, distributed renewable energy system designed and optimized for on and off grid installations. This kind of system is fully integrated hybrid system that combines wind energy units with PV technology in a compact footprint, creating the greatest energy generation density. The hybrid concept is unique and disruptive, seamlessly utilizing wind and solar energy …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 1, 2017 · pp. 7–10 Read article
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Hydrothermal synthesis of ZnS for efficient photodegradation of Malachite green
Abstract: In this work, ZnS nanoparticles were prepared by hydrothermal method. Various characterization techniques such as X-ray diffraction (XRD), UV-visible optical spectroscopy and FT-IR spectra were used to study the structural, composition and optical properties of synthesized nanoparticles. The XRD pattern showed that the prepared ZnS nanoparticles have a cubic zinc blende structure. The band gap is calculated from absorption spectra with the help of Taucplot and is found to be …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 1, 2020 · pp. 11–15 Read article
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Tb3+ activated Boro Phosphate Glass: Synthesis and Photoluminescence (PL) Characteristics
Abstract: The (40B2O3+ 3Al2O3+(10-x) P2O5 + xTb + 7ZnO+5LiCO3+ 10H6NO4P+25SrCO3) boro phosphate glass was successfully synthesized via melt quenching method. The structural confirmation is supported with X-ray diffraction (XRD) data and surface morphology was defined by scanning electron microscope (SEM). The (40B2O3+ 3Al2O3+(10-x) P2O5 + xTb+ 7ZnO+5LiCO3+ 10H6NO4P+25SrCO3) boro phosphate glass has been investigated for its Photoluminescence (PL) under UV excitation. At 544 nm, the excitation was observed, and at 222 …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 43–47 Read article
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A Comparative Study of Zinc Oxide Nano Particles Synthesized by Hydrothermal, Sol-gel and Thermal Decomposition
Abstract: In the proposed work, Zinc oxide nano particles (ZnO NP's) are synthesized using three different methods: Hydrothermal, Sol-gel and Thermal decomposition. The samples are characterized using X- ray diffraction (XRD), UV visible spectroscopy (UV-Vis), Fourier Transform Infrared Spectroscopy (FT-IR) and scanning electron microscopy (SEM). The XRD pattern exhibit single-phase polycrystalline nature of all the samples exhibiting the most intense peak at (101). The diffraction peaks are located at 31.80, 34.46, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 39–45 Read article
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Structure–Optical Property Correlation of Co-Doped TiO₂ and ZnO Nanofillers for Advanced Functional Composite Applications
Abstract: This study investigates the enhancement of the structural and optical properties of titanium dioxide (TiO₂) and zinc oxide (ZnO) nanoparticles through cobalt (Co) doping. Pristine TiO₂ and ZnO are widely studied metal oxides; however, their large band gaps and limited visible-light absorption restrict their performance in optoelectronic, photocatalytic, and environmental applications. Co doping is employed as an effective strategy to overcome these limitations by inducing band-gap narrowing, creating defect-related electronic …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1374–1394 Read article
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Study of CdS/AZO/FTO, CdS/FTO and CdS Thin Films Deposited by Modified Double Layer Thermal Evaporation
Abstract: The CdS/AZO/FTO, CdS/FTO and CdS thin films were deposited by a modified double-layer vacuum evaporation technique. The 90 nm of double-layer CdS thin films were prepared with the bottom layer 50 nm thick and the upper one was 40 nm thick and respective substrate temperatures were 100oC and 70oC. The physical properties of thus prepared films were characterized using X-ray diffraction (XRD), UV-VIS-NIR spectrophotometer, Hall Effect Measurement System and Scanning …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 56–63 Read article
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Synthesis of ZnO Nanoparticles Using Different pH Values
Abstract: ZnO nanoparticles have been prepared via simple precipitation technique. The size of ZnO nanoparticles was tuned by using different concentration of sodium hydroxide. The as-grown nanoparticles were characterized using X-ray diffraction (XRD), UV-Vis absorption spectroscopy, PL spectroscopy and FTIR analysis. XRD results confirmed the tuning of size of ZnO nanoparticles with decreasing the concentration of sodium hydroxide. Absorption results show the blue shift in the peak position with decreasing the …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 1, 2018 · pp. 1–8 Read article
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Green synthesis of zinc oxide and copper oxide nanoparticles and their effect against wilt fungus, Fusarium udum.
Abstract: Nowadays nanoparticles (NPs) come out as powerful tools to enhance crop production and protection. Biosynthesis of NPs has a vital role and an alternate to chemical and physical methods because it is simple, easy, eco-friendly, and free from chemical hazards. Zinc oxide (ZnO) and copper oxide (CuO) NPs were synthesized from leaves extract of Lantana camara (L.) and Nerium oleander (L.) and characterized by using several techniques such as transmission …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 13, Issue 3, 2023 · pp. 1–5 Read article
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Evaluation of Antibacterial Activities of Environmental Benign Synthesis of Silver Nanoparticles using the Flower Extracts of Plumeria Alba Linn.
Abstract: Green nanoparticle synthesis has been achieved using environmentally acceptable plant extract and ecofriendly reducing and capping agents. However, development of green nanotechnology is generating interest of researchers toward ecofriendly biosynthesis of nanoparticles. In this study green synthesis of stable silver nanoparticle was done using the flower extract of Frangipani (Plumeria alba). The formation of silver nanoparticles was apparently displayed within 2 min with evidence of surface plasmon bands (SPB) between …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 3, Issue 3, 2013 · pp. 13–20 Read article
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Effect of Electrochemically Synthesized Zno/CoO Nanocomposites on Optical, Electrical and Viscosity Properties of Polyvinyl Alcohol Films
Abstract: AbstractZnO/CoO nanocomposites doped poly vinyl alcohol films were prepared by casting method using water as a solvent. X-ray diffraction, IR spectroscopy UV-visible spectroscopy, and scanning electron microscopy techniques were used to characterize the synthesized nanocomposite films. Study of the structural changes and complexation of nanoparticles with polymer matrix were performed using X-ray and IR techniques. Optical characterization studies revealed a blue shift in the absorption edge with increasing nanoparticle concentration …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 52–62 Read article
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Role of Solvent on the Synthesis Structure of Zinc Oxide Nanoparticles
Abstract: Zinc oxide nanoparticles are synthesized by simple precipitation method in two different solvents, i.e., in distilled water and methanol. The zinc chloride and sodium hydroxide pellets are used as reactant precursors in both cases. The authors have analyzed the effect of solvents on crystal size and structure of zinc oxide nanoparticles. The samples were characterized by X-ray Diffraction (XRD) and UV-Vis spectroscopic techniques. The high absorption peak for zinc oxide …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 1, 2015 · pp. 42–45 Read article
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Doping of Metal Precursors on Cadmium Selenide Quantum dots—A Review
Abstract: In this article, we review effects of doping on Cadmium-Selenide (CdSe) Quantum dots (QDs). Different dopants critically influence the properties and functionalities of nanocrystals (QDs). It is of strong interest to understand the structural characteristics of dopants and how they interact with the QDs. Differently, doped CdSe QDs were characterized by X-ray diffraction (XRD) technique, UV-Visible absorption spectroscopy, photoluminescence (PL) spectroscopy. The important results and measurements are discussed. CdSe quantum …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 7, Issue 3, 2017 · pp. 1–4 Read article
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The Safety of Dental X-ray Machine against the Deoxyribonucleic Acid (DNA): In Vitro Model Explores the Effects of Chlorine Free Radical, Duration of Exposure and the Doses of Irradiation
Abstract: Background: Patients attended to the dental clinics are referred to X-ray which may arise the possibility of adverse reactions upon oral mucosa. X-ray-induced oral mucosa damage is related to the generation of the free radicals in the aqueous media of the cells. Objectives: This study aimed to clarify the safety of dental X-ray exposure by utilizing an in vitro experimental model of calf-thymus double strands DNA (ctdsDNA) molecule exposed to …
Published in Research and Reviews: A Journal of Dentistry · Vol. 10, Issue 2, 2019 · pp. 23–28 Read article