Showing 181 - 200 results of 733 for search '"Ultraviolet"', query time: 0.05s Refine Results
  1. 181

    Optical Energy Transfer Mechanisms: From Naphthalene to Biacetyl in Liquids and from Pyrazine to Biacetyl by Fuat Bayrakceken, Korkut Yegin, Erdal Korkmaz, Yakup Bakis, Bayram Unal

    Published 2012-01-01
    “…Electronically excited naphthalene with 200–260 nm ultraviolet (UV) light emits photons in its emission band and the emitted photons are absorbed by biacetyl, which, in turn, excites biacetyl phosphorescence. …”
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  2. 182

    Mathematical Analysis of the Transmission Dynamics of Skin Cancer Caused by UV Radiation by Tahera Parvin, Md. Haider Ali Biswas, Bimal Kumar Datta

    Published 2022-01-01
    “…Nowadays, skin cancer is a worldwide panic. It is related to ultraviolet radiation. In this paper, we have formulated a SIRS type mathematical model to show the effects of ultraviolet radiation on skin cancer. …”
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  3. 183
  4. 184

    Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior by Junlong Liu, Lijing Chu, Tianyuan Zhao, Yunchu Zhu, Zhi Cang, Qian Chen, Junshen Yuan

    Published 2022-01-01
    “…The results showed that the hindered amine light stabilizer could capture the free radicals formed during the photodegradation of asphalt when subjected to ultraviolet aging. Under the impact of ultraviolet aging, hindered amine light stabilizer could improve the high temperature performance of asphalt binder. …”
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  5. 185

    Research on the Preparation of Modified TiO<sub>2</sub> Composite Coatings with Anti-Fouling and Flashover Resistance by ZHANG Jie, ZOU Junwen, LIU Xueguang, LI Xiaoying

    Published 2024-12-01
    “…In order to effectively reduce the occurrence of pollution flashover accidents caused by surface contamination of transmission line insulators, a new fluorocarbon coating material was prepared by combining modified nano-TiO2, PTFE and fluorocarbon resin FEVE using compressed air spraying technology.The optimum addition amount of modified TiO2&#x00A0;particles was discussed.The microstructure was studied using scanning electron microscopy (SEM) and atomic force microscopy (AFM).The hydrophobicity, self-cleaning properties and anti-ultraviolet aging resistance were analyzed using a contact angle measurement instrument.The results showed that the optimum addition amount of modified nano-TiO2&#x00A0;was 4%,the adhesion of the coating reached grade 0,and the maximum static contact angle was 121&#x00B0;.The surface of the anti-pollution flashover composite coating prepared with modified TiO2&#x00A0;exhibited numerous micro-nano scale columnar cone tip structures, resulting in higher roughness.Its hydrophobicity, self-cleaning ability, and anti-ultraviolet aging resistance were improved, demonstrating excellent antipollution flashover performance.…”
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  6. 186

    Green Biosynthesis of Silver Nanoparticles from Moringa oleifera Leaves and Its Antimicrobial and Cytotoxicity Activities by Gufran Mahmood Mohammed, Sumaiya Naeema Hawar

    Published 2022-01-01
    “…Ultraviolet and visible spectroscopy showed a silver surface plasmon resonance band at 434 nm. …”
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  7. 187

    FTA: A Feature Tracking Empirical Model of Auroral Precipitation by Chen Wu, Aaron J. Ridley, Anna D. DeJong, Larry J. Paxton

    Published 2021-05-01
    “…Abstract The Feature Tracking of Aurora (FTA) model was constructed using 1.5 years of Polar Ultraviolet Imager data and is based on tracking a cumulative energy grid in 96 magnetic local time (MLT) sectors. …”
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  8. 188

    Light-Programmable g-C3N4 Microrobots with Negative Photogravitaxis for Photocatalytic Antibiotic Degradation by Yunhuan Yuan, Xianghua Wu, Bindu Kalleshappa, Martin Pumera

    Published 2025-01-01
    “…Specifically, under ultraviolet light, the microrobots exhibit negative photogravitaxis, while under visible light, they demonstrate a combination of 3-dimensional motion and 2-dimensional motion. …”
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  9. 189

    Nowcasting Solar EUV Irradiance With Photospheric Magnetic Fields and the Mg II Index by Kara L. Kniezewski, Samuel J. Schonfeld, Carl J. Henney

    Published 2024-04-01
    “…Abstract A new method to nowcast spectral irradiance in extreme ultraviolet (EUV) and far ultraviolet (FUV) bands is presented here, utilizing only solar photospheric magnetograms and the Mg II index (i.e., the core‐to‐wing ratio). …”
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  10. 190

    4-Nitroaniline Degradation by TiO2 Catalyst Doping with Manganese by Kai Zheng, Tong-chao Zhang, Pin Lin, Yu-hua Han, Hong-yi Li, Ren-jie Ji, Hai-yun Zhang

    Published 2015-01-01
    “…Monitored parameters during all the photocatalytic reaction including dissolved oxygen, direct voltage, and radiation dosage of ultraviolet rays were investigated. When dissolved oxygen concentration, direct voltage, and radiation dosage of ultraviolet rays were, respectively, equivalent to 9 mg/L, 24 V, and 1200 μW/cm2, the degradation ratio of 4-nitroaniline reached maximum. …”
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  11. 191

    Potential anti-ageing effects of probiotic-derived conditioned media on human skin cells by Hong Yoo Kyung, An Sungkwan, Lee Yun Hee, Yang Seung Ah, Yoon Yoo Kyung, Lee Joonil, Lee Gwasoo, Chung Myung Jun, Bae Seunghee

    Published 2022-09-01
    “…In this study, the protective functions of bacteria-free conditioned media from Bifidobacterium and Lactobacillus species against ultraviolet radiation-induced skin ageing and associated cellular damage were investigated. …”
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  12. 192

    Dissolved organic matter and its correlation with phytoplankton abundance for monitoring surface water quality by O. Cahyonugroho, S. Hariyanto, G. Supriyanto

    Published 2022-10-01
    “…The analysis was presented through bulk parameters of total organic, ultraviolet at 254 nm wavelength (UV254), specific ultraviolet absorbance value, and fluorescence spectroscopy using excitation-emission matrices with fluorescence regional integration analysis.FINDINGS: The results showed the bulk parameters of dissolved organic matter at all stations were significantly different, as Station 1 and 2 were higher, while 3 and 4 had a lower concentration. …”
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  13. 193

    Thermospheric Neutral Density Data Assimilation System Based on the Whole Atmosphere Model During the November 2003 Storm by Ching‐Chung Cheng, Timothy Fuller‐Rowell, Eric K. Sutton, Tzu‐Wei Fang, Jann‐Yenq Liu, Daniel R. Weimer

    Published 2024-10-01
    “…The second were neutral density estimates from the Global Ultraviolet Imager (GUVI) limb‐scan airglow observations aboard the Thermosphere Ionosphere Mesosphere Energetics and Dynamics satellite. …”
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  14. 194

    Luminescence and a new approach for detecting heat treatment of geuda sapphire by T. Pluthametwisute, T. Pluthametwisute, L. Nasdala, C. Chanmuang N., M. Wildner, E. Libowitzky, G. Giester, E. G. Zoysa, C. Jakkawanvibul, W. Suwanmanee, T. Sripoonjan, T. Tengchaisri, B. Wanthanachaisaeng, C. Sutthirat

    Published 2025-01-01
    “…Natural geuda sapphire exhibits orange to red luminescence under longwave ultraviolet (LWUV; 365 nm) light, while heated geuda sapphire shows blue luminescence under shortwave ultraviolet (SWUV; 225 nm) light. …”
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  15. 195

    Sintesis dan Karakterisasi Komposit Mn-N-TiO2/Bentonit untuk Degradasi Polutan Organik by Ruslan, Prismawiryanti, Ni Ketut Sumarni, Ahmad Ridhay, Mutiara Zalfa Riski, Sitti Nurhalisa, Anggi Marsela

    Published 2024-12-01
    “…The results showed that the photodegradation activity increased significantly up to 40.9075% at 30 minutes of irradiation for the Mn-N- TiO2/Bentonite composite and 20.0225% under exposure to ultraviolet light.…”
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  16. 196

    On Finite Interquark Potential in D=3 Driven by a Minimal Length by Patricio Gaete

    Published 2014-01-01
    “…Interestingly enough, we find an ultraviolet finite interaction energy, which contains a regularized logarithmic function and a linear confining potential. …”
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  17. 197

    CURRENT TRENDS OF THE ECOLOGICAL-FOCUSED INNOVATIVE DEVELOPMENT IN THE SPHERE OF SEWAGE TREATMENT BY THE HOUSING AND PUBLIC UTILITIES ENTERPRISES IN RUSSIA AND ABROAD by A. Bronitsyn

    Published 2017-07-01
    “…We describe such methods of water cleaning applied in Russia and abroad as ASP (the Activated Sludge Process), centrifugation, sorption, flotation, ultraviolet treatment, ozonation, micro- and nano filtration. …”
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  18. 198

    Use of Flavonoids and Cinnamates, the Main Photoprotectors with Natural Origin by Alesandra R. Nunes, Ícaro G. P. Vieira, Dinalva B. Queiroz, Antonio Linkoln Alves Borges Leal, Selene Maia Morais, Débora Feitosa Muniz, João Tavares Calixto-Junior, Henrique Douglas Melo Coutinho

    Published 2018-01-01
    “…Many pathological problems are initiated by ultraviolet radiation (UVR), such as skin cancer, the most commonly diagnosed cancer worldwide. …”
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  19. 199

    Effects of Corneal Stromal Lens Collagen Cross-Linking Regraft on Corneal Biomechanics by Rong Shi, Weize Wang, Yu Che, Shaorong Linghu, Taixiang Liu

    Published 2022-01-01
    “…Corneal collagen cross-linking (CXL) therapy, a method that uses a combination of riboflavin and ultraviolet-A light (UVA), can promote the formation of covalent cross-linking of amino acid residues of corneal collagen and enhance the hardness of the cornea. …”
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  20. 200

    Interactions of Self-Assembled <i>Bletilla Striata</i> Polysaccharide Nanoparticles with Bovine Serum Albumin and Biodistribution of Its Docetaxel-Loaded Nanoparticles by Guangyuan Zhang, Jin Qiao, Xin Liu, Yuran Liu, Ji Wu, Long Huang, Danyang Ji, Qingxiang Guan

    Published 2019-01-01
    “…The affinity ability of bovine serum albumin (BSA) and the BSPs-SA nanoparticles was also characterized utilizing ultraviolet and fluorescence spectroscopy. Besides, the bioavailability and tissue distribution of docetaxel (DTX)-loaded BSPs-SA nanoparticles were also assessed. …”
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