Showing 421 - 440 results of 733 for search '"Ultraviolet"', query time: 0.07s Refine Results
  1. 421

    Development of Green UV-Vis Method for Direct Determination of Total Sugars in the Aqueous Extract of Teff (Eragrostis tef (Zuccagni) Trotter) Grains and Other Cereals by Hagos Yisak, Hagos Tukue, Mesfin Redi-Abshiro, Bhagwan Singh Chandravanshi, Estifanos Ele Yaya

    Published 2022-01-01
    “…There is no ultraviolet visible (UV-Vis) spectrophotometric method for the direct determination of total sugars in the aqueous extract of teff grain samples. …”
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  2. 422

    A hyperspectral open-source imager (HOSI) by Jolyon Troscianko

    Published 2025-01-01
    “…The escalating threat of artificial light at night (ALAN) presents unique challenges for measuring the visual impact of light pollution, requiring measurement at low light levels across the human-visible and ultraviolet ranges, across all viewing angles, and often with high within-scene contrast. …”
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  3. 423

    Synthesis of Neutral SiO𝟐/TiO𝟐 Hydrosol and Its Application as Antireflective Self-Cleaning Thin Film by Chiahung Huang, Hsunling Bai, Yaoling Huang, Shuling Liu, Shaoi Yen, Yaohsuan Tseng

    Published 2012-01-01
    “…In addition to antireflection, the SiO2/TiO2 thin film decomposed the surface coated oleic acid under ultraviolet light and showed superhydrophilicity under dark for two days. …”
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  4. 424

    Symmergent Gravity, Seesawic New Physics, and Their Experimental Signatures by Durmuş Demir

    Published 2019-01-01
    “…The standard model of elementary particles (SM) suffers from various problems, such as power-law ultraviolet (UV) sensitivity, exclusion of general relativity (GR), and absence of a dark matter candidate. …”
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  5. 425

    Influence Applied Potential on the Formation of Self-Organized ZnO Nanorod Film and Its Photoelectrochemical Response by Nur Azimah Abd Samad, Chin Wei Lai, Sharifah Bee Abd Hamid

    Published 2016-01-01
    “…Therefore, it exhibited a high photocurrent density that reached 17.8 mA/cm2 under ultraviolet illumination and 12.94 mA/cm2 under visible illumination. …”
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  6. 426

    Study on the Aging Behavior of Two Acrylic Polyurethane Coatings under High and Low Temperature UV- Artificial Accelerated Aging Tests by PAN Dongyue, AN Jiangfeng, ZHOU Xuejie, PENG Feifan, CHEN Hao, CHEN Zhijian, WU Jun

    Published 2024-12-01
    “…In order to investigate the aging behavior of acrylic polyurethane coatings in environments with high ultraviolet radiation intensity and large temperature differences, the aging processes of water-based and solvent-based acrylic polyurethane coatings were studied using UV-high and low-temperature artificial accelerated aging methods.Techniques such as super depth-of-field imaging, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and energy-dispersive spectroscopy (EDS) were employed to analyze the changes in microscopic morphology, molecular structure and elemental atomic fraction on the surfaces of the coatings.The performance changes and aging patterns of solvent-based and water-based coatings during the aging process were examined through electrochemical impedance spectroscopy (EIS), water contact angle measurements, adhesion strength tests and glossiness assessments.Results showed that the water-based acrylic polyurethane coating system exhibited cracking, whereas the solvent-based coating system exhibited layering.Both coatings experienced significant reductions in glossiness, water contact angle and adhesion strength.The aging rate of the two coating systems initially increased rapidly and then slowed down, with an early appearance of the rate transition inflection point.Infrared spectroscopy analysis indicated that both coatings shared similar aging mechanisms, while EDS analysis demonstrated a faster aging rate for the water-based coating.Additionally, the weight of each performance index was calculated by entropy method, and the comprehensive aging grade under the test was obtained, which verified that the solventbased acrylic polyurethane coating system had relatively good weather resistance.…”
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  7. 427

    Characterization of Cobalt Sulfide Thin Films Synthesized from Acidic Chemical Baths by Tizazu Abza, Dereje Gelanu Dadi, Fekadu Gashaw Hone, Tesfaye Chebelew Meharu, Gebremeskel Tekle, Eyobe Belew Abebe, Kalid Seid Ahmed

    Published 2020-01-01
    “…The photoluminescence (PL) spectra of the films confirmed the emission of ultraviolet, violet, and blue lights. The intense PL emission of violet light at 384 nm had red shifted with increasing deposition time that could be resulted from the increase in the average crystallite size. …”
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  8. 428

    Finely Tailored Conjugated Small Molecular Nanoparticles for Near-Infrared Biomedical Applications by Xiaozhen Li, Ruohan Zhang, Yanlong Yang, Wei Huang

    Published 2025-01-01
    “…Near-infrared (NIR) phototheranostics (PTs) show higher tissue penetration depth, signal-to-noise ratio, and better biosafety than PTs in the ultraviolet and visible regions. However, their further advancement is severely hindered by poor performances and short-wavelength absorptions/emissions of PT agents. …”
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  9. 429

    Suggested Guidelines for the Treatment of Mycosis Fungoides in Countries with Limited Resources by Mona Abdel-Halim Ibrahim, Nada Eltayeb, Mirna Michel Ibrahim, Ahmed Nassar, Maged Daruish, Maha El-Zimaity, Mahmoud El-Lithy, Ahmed Mostafa, Amal El-Afifi, Haitham Abdelbary, Mahira Hamdy El-Sayed

    Published 2023-01-01
    “…For early classical MF, we recommend Psoralen-ultraviolet A (PUVA), which is a well-tolerated treatment option in dark phenotype. …”
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  10. 430

    Unintended Sunburn: A Potential Target for Sun Protection Messages by Geraldine F. H. McLeod, Anthony I. Reeder, Andrew R. Gray, Rob McGee

    Published 2017-01-01
    “…However, sunburn from excessive ultraviolet radiation (UVR) remains common. To reduce sunburn incidence, it is important to examine those individuals who experience unintended sunburn. …”
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  11. 431

    Colorimetric Sensor Based on β-Cyclodextrin-Functionalized Silver Nanoparticles for Zidovudine Sensitive Determination by Farhad Ghanizadeh Gerayeli, Farnaz Hosseini, Zohreh Bagheri, Amir Savardashtaki, Zahra Shabaninejad, Ali Mohammad Amani, Sohrab Najafipour

    Published 2020-01-01
    “…Characterization of nanoparticles was done using different methods including infrared (IR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), and also, X-ray diffraction (XRD) patterns. …”
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  12. 432

    Experimental Study on the Photothermal Properties of Thermochromic Glass by Mingyi Gao, Dewei Qian, Lihua Zhao, Rong Jin

    Published 2025-01-01
    “…As the temperature increases, the visible, solar, and ultraviolet transmittances decrease at a similar rate. …”
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  13. 433

    (5E,7E)-4,5,6 Trihydroxy-3-(hydroxymethyl)tetrahydro-2H-pyran-2-ylheptadeca-5,7-dienoate from Euclea crispa (L.) Inhibits Ovarian Cancer Cell Growth by Controlling Apoptotic and Me... by Chella Perumal Palanisamy, Bo Cui, Hongxia Zhang, Selvaraj Jayaraman, Ponnulakshmi Rajagopal, Vishnu Priya Veeraraghavan

    Published 2022-01-01
    “…Further, the compound was confirmed by spectroscopic techniques such as ultraviolet-visible (UV/Vis) spectrometer, Fourier transform infrared (FTIR) spectrometer, and 1H and 13C nuclear magnetic resonance (NMR). …”
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  14. 434

    High order harmonic generation-based attosecond light sources and applications to quantum phenomena by E. Constant, S. Nandi, C. Picot, E. Prost, S. Palakkal, F. Lépine, V. Loriot

    Published 2025-01-01
    “…High harmonic generation based light sources combine high photon energy, broad spectrum, and short duration with a relatively compact implementation, which makes them flexible tools to study and modify physical and chemical properties of matter by acting directly on electronic degrees of freedom. Because extreme ultraviolet radiation interacts primarily with outer and inner valence electrons, it finds likely applications in atomic, molecular, and material science. …”
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  15. 435

    Surface patterning of wide-gap semiconducting β-Ga2O3 thin films by area selective crystallization via room-temperature excimer laser annealing and low-toxic wet etching processes by Daishi Shiojiri, Ryoya Kai, Satoru Kaneko, Akifumi Matsuda, Mamoru Yoshimoto

    Published 2025-01-01
    “…Highly ( $\bar{2}$ 01)-oriented crystalline β -Ga _2 O _3 thin films with ∼70 nm thickness on α -Al _2 O _3 (0001) substrates were obtained through a combination of room-temperature deposition process and the subsequent excimer laser annealing at a deep ultraviolet wavelength of 248 nm. In conclusion, the area selective crystallized β -Ga _2 O _3 micropatterns were obtained through ultrasonic wet etching with 40% H _3 PO _4 aqueous solution to remove amorphous regions.…”
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  16. 436

    Investigation of the Effect of Aerosolized TiO2 Nanoparticles on the NO2 Concentrations under UVA Exposure by Ali Mohamadi Nasrabadi, Ana Maria Todea, Carmen Wolf, Tolga Demirel, David Habryka, Christof Asbach

    Published 2021-04-01
    “…This study investigated the photocatalytic reduction of NO2 due to varying concentrations of aerosolized TiO2 nanoparticles during varying levels of ultraviolet A (UVA) exposure. Additionally, we evaluated the effects of low (5%), moderate (35%), and high (70%) relative humidity. …”
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  17. 437

    Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer by Yunguang Huang, Jinxu Li, Bin Tang, Liping Zhu, Keyong Hou, Haiyang Li

    Published 2015-01-01
    “…A vacuum ultraviolet lamp based single photon ionization- (SPI-) photoelectron ionization (PEI) portable reflecting time-of-flight mass spectrometer (TOFMS) was designed for online monitoring gas samples. …”
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  18. 438

    Performance of Laboratory Designed Permeable Asphalt Mixtures by Ieva Jakubėnaitė, Audrius Vaitkus, Judita Škulteckė, Ovidijus Šernas

    Published 2024-06-01
    “…To analyse the permeability of asphalt mixtures, ten porous asphalt mixtures with different air voids content and nominal maximum size were designed and tested in terms of air voids content, horizontal and vertical water permeability, water sensitivity, water sensitivity after ultraviolet radiation and mass loss. The results showed that the PA 16 mixture, designed according to the technical requirements TRA ASPHALT 08, was the most porous and permeable mixture, while the modified PA 8 mixture (PA 8_M2) had the lowest air voids content and permeability. …”
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  19. 439

    Improving Mechanical Properties of Thermoset Biocomposites by Fiber Coating or Organic Oil Addition by Truc T. Ngo, James G. Kohl, Tawni Paradise, Autumn Khalily, Duane L. Simonson

    Published 2015-01-01
    “…Epoxy resin is cured using an amine-based initiator, whereas UVL resin is cured under ultraviolet light. Results show that hemp fibers with APTES prime coat used in either epoxy or UVL matrix exhibit some potential improvements in the composite’s mechanical properties including tensile strength, modulus of elasticity, and ductility. …”
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  20. 440

    Ln-MOF in production of durable antimicrobial and UV-Protective fluorescent cotton fabric for potential application in military textiles by Hossam E. Emam, Reda M. Abdelhameed, Osama M. Darwesh, Hanan B. Ahmed

    Published 2025-01-01
    “…Herein, fluorescent protective cotton with ultraviolet radiation (UVR)-protection and antimicrobial property was currently prepared via the immobilization of lanthanide-metal organic framework (Ln-MOF). …”
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