Showing 381 - 400 results of 733 for search '"Ultraviolet"', query time: 0.05s Refine Results
  1. 381

    GaN-Based High-k Praseodymium Oxide Gate MISFETs with P2S5/(NH4)2SX + UV Interface Treatment Technology by Chao-Wei Lin, Hsien-Chin Chiu

    Published 2012-01-01
    “…This study examines the praseodymium-oxide- (Pr2O3-) passivated AlGaN/GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) with high dielectric constant in which the AlGaN Schottky layers are treated with P2S5/(NH4)2SX + ultraviolet (UV) illumination. An electron-beam evaporated Pr2O3 insulator is used instead of traditional plasma-assisted chemical vapor deposition (PECVD), in order to prevent plasma-induced damage to the AlGaN. …”
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    Article
  2. 382

    Comparative Analysis of Lycorine in Wild Plant and Callus Culture Samples of Hymenocallis littoralis by HPLC-UV Method by Sreeramanan Subramaniam, Jeevandran Sundarasekar, Geethaa Sahgal, Vikneswaran Murugaiyah

    Published 2014-01-01
    “…In the present study, an analytical method using HPLC with ultraviolet detection was developed for the quantification of lycorine in the extracts of different parts of wild plant and tissue culture samples of H. littoralis. …”
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    Article
  3. 383

    Investigation of factors affecting the green synthesis of silver nanoparticles from guava leaf extract by Dong Duc Tran, Van Hoang Bui, Quang Nguyen Dinh, Duc Cuong Nguyen, Cong Trinh Bui, Thao Vu Thi

    Published 2025-01-01
    “…Various analytical techniques such as Ultraviolet-visible spectroscopy (UV-Vis), Dynamic light scattering (DLS), X-ray diffraction (XRD), Field-emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FT-IR), and Energy-dispersive X-ray spectroscopy (EDX) were employed to characterise the material properties. …”
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    Article
  4. 384

    Advancements and Challenges of Vacuum‐Processed Organic Photodiodes: A Comprehensive Review by Chan So, Won Jun Pyo, Dae Sung Chung

    Published 2025-02-01
    “…Herein, four primary pathways for development of vacuum‐processed OPDs are outlined: 1) ultraviolet‐selective OPDs, 2) visible‐light‐selective OPDs, 3) near‐infrared or short‐wave‐infrared‐sensitive OPDs, and 4) addressing challenges such as higher noise currents compared to inorganic PDs. …”
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    Article
  5. 385

    Computer-Aid System for Automated Jaundice Detection by Ahmad Yaseen Abdulrazzak, Saleem Latif Mohammed, Ali Al-Naji, Javaan Chahl

    Published 2023-03-01
    “…The system comprises a digital HD camera, a computer device with a Matlab application installed to analyze and detect the skin color changes of the infant, and an Arduino Uno microcontroller to control an LED ultraviolet light. A set of neonate images were collected to train the random forest algorithm, including 374 for normal and 137 for jaundiced infants. …”
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    Article
  6. 386

    Quantitative Clinical Diagnostic Analysis of Acetone in Human Blood by HPLC: A Metabolomic Search for Acetone as Indicator by Esin Akgul Kalkan, Mehtap Sahiner, Dilek Ulker Cakir, Duygu Alpaslan, Selehattin Yilmaz

    Published 2016-01-01
    “…The determination was carried out at 365 nm using an ultraviolet-visible (UV-Vis) diode array detector (DAD). …”
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    Article
  7. 387

    Effect of UV-degraded microplastics on Dissolved Air Flotation (DAF) removal by Pit Sovannary, Sangpreedeekorn Jirawat, Phengsaart Theerayut, Janjaroen Dao

    Published 2025-01-01
    “…This study aims to investigate the effect of ultraviolet (UV) radiation on two types of MPs, polypropylene (PP) and polystyrene (PS), by using the dissolved air flotation (DAF) process. …”
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    Article
  8. 388

    Pressure-controlled luminescence in fast-response barium fluoride crystals by Marilou Cadatal-Raduban, Luong Viet Mui, Masahiro Yamashita, Yuki Shibazaki, Toshihiko Shimizu, Nobuhiko Sarukura, Kohei Yamanoi

    Published 2024-10-01
    “…However, the CL emission wavelength in the vacuum ultraviolet region is difficult to detect, and intrinsically intense and slow nanosecond self-trapped exciton (STE) luminescence occurs. …”
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    Article
  9. 389

    A Novel Orange-Red Emitting ZnB4O7:Eu3+ Phosphor with Urchin-Like Nanostructure by Hom Nath Luitel, Rumi Chand, Takanori Watari

    Published 2015-01-01
    “…The ZnB4O7:Eu3+ phosphors were efficiently excited by ultraviolet (UV ~ 254 nm) to visible light of ~ 220 to 450 nm and exhibited intense orange-red emission consisting of main peaks at 590, 615, and 695 nm due to the charge transfer in the host and f→f transitions (5D0 to 7F1,2,4) of the Eu3+ ions. …”
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  10. 390

    Characterization and antibacterial activity of biogenic iron nanoparticles using Proteus mirabilis by Mais Emad Ahmed, Huda Mohammed Hasan, Anfal Jabbar Kttafah

    Published 2024-01-01
    “…The Fourier transform infrared, attenuated total reflectance, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, ultraviolet–visible, and dynamic light scattering measurements were used to characterize the green synthesized nanoparticles (NPs). …”
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    Article
  11. 391

    Ecofriendly synthesis of silver nanoparticles using metallic solution-based goji berry extract for their antibacterial properties by Abdul Rauf Jamali, Waseem Khan, Salahuddin Khan, Ahmed Ahmed Ibrahim, Kamran Alam

    Published 2025-01-01
    “…The formation of silver particles was confirmed by Ultraviolet–Visible (UV–Vis) spectroscopy. The surface morphology of Ag-NPs was found to be almost spherical, which was determined by a transmission electron microscope and showed spherical particles having an average diameter of 22 nm. …”
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    Article
  12. 392

    Independent Modal Variable Structure Fuzzy Active Vibration Control of Cylindrical Thin Shells Laminated with Photostrictive Actuators by R.B. He, S.J. Zheng, H.T. Wang

    Published 2013-01-01
    “…Photostrictive actuator, which can produce photodeformation strains under the activation of ultraviolet lights, is a new promising non-contact photoactuation technique for active vibration control of flexible structures. …”
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    Article
  13. 393

    The Ionospheric Dynamics of the African Sector Responding to a Severe Geomagnetic Storm; the Storm of 3–5 November 2021 by Wellen Rukundo

    Published 2023-03-01
    “…The analysis of TIMED Global UltraViolet Imager images revealed storm time‐induced changes in thermospheric composition during the main phase which resulted in a differential ionospheric response with intense, moderate, and weak positive storm effects in northern, equatorial, and southern regions respectively. …”
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    Article
  14. 394

    Enhancing Carriers’ Confinement by Introducing BAlGaN Quantum Barriers for the Better Optoelectronic Performance of Deep UV LEDs by Jamshad Bashir, Muhammad Usman, Dmitri Sergeevich Arteev, Zoya Noor, Ahmed Ali

    Published 2025-01-01
    “…Ultraviolet light-emitting diodes (LEDs) based on Aluminum Gallium Nitride (AlGaN) suffer from poor carriers’ confinement effect, one possible solution to this problem is to increase the barrier heights for carriers by increasing Aluminum content in quantum barriers (QBs), which results in a higher turn-on voltage. …”
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    Article
  15. 395

    Efficacy of SG Shield in reducing droplet contamination during collection of oropharyngeal swab culture specimens by Phui-Sze Angie Au-Yong, Xuanxuan Chen, Wen Hao Low, Keen Chong Chau, Stephanie Fook-Chong, Shariq Ali Khan

    Published 2022-09-01
    “…A small latex balloon containing ultraviolet fluorescent dye was placed in the oral cavity of the manikin and inflated until explosion to simulate a cough. …”
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    Article
  16. 396

    Exemplarily view on selected fluorescence textile products by Boris Mahltig, Vanessa Ernst, Lisa Schöder

    Published 2023-02-01
    “…In many commercial applications, fluorescent materials transfer non-visible ultraviolet (UV) light into visible light. By this an additional color effect and higher visibility is reached. …”
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  17. 397

    Investigation of the Performance of Aucore-Pdshell/C as the Anode Catalyst of Direct Borohydride-Hydrogen Peroxide Fuel Cell by Hong Wang, Ying Wang, Xianyou Wang, Peiying He, Lanhua Yi, Wei Yi, Xue Liu

    Published 2011-01-01
    “…The core-shell structure, surface morphology, and electrochemical performances of the catalysts are characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible absorption spectrometry, linear sweep voltammetry, and chronopotentiometry. …”
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    Article
  18. 398

    Occurrence and Risk Assessment of Tetracycline Residues in Layer Eggs in Haryana, India by Khushbu Bishnoi, Pallavi Moudgil, Deepak Soni, Vijay J. Jadhav

    Published 2025-02-01
    “…A total of 100 pooled egg samples were analyzed using High-Performance Liquid Chromatography with Ultraviolet detector for the detection of tetracycline group residues. …”
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    Article
  19. 399

    A Fast and Validated HPLC Method for the Simultaneous Analysis of Five 5-HT3 Receptor Antagonists via the Quantitative Analysis of Multicomponents by a Single Marker by Fuchao Chen, Baoxia Fang, Peng Li, Sicen Wang

    Published 2021-01-01
    “…The quantitative analysis of multicomponents by a single marker method was conducted with ondansetron as an internal reference substance and performed using relative retention time and ultraviolet spectral similarity as the double indicator. …”
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    Article
  20. 400

    Green Synthesis of Copper Nanoparticles from the Aqueous Extract of <i>Lonicera japonica</i> Thunb and Evaluation of Its Catalytic Property and Cytotoxicity and Antimicrobial Activ... by Weijie Yu, Jingyi Tang, Chunxia Gao, Xuesong Zheng, Peizhi Zhu

    Published 2025-01-01
    “…The catalytic activity and dye degradation efficiency of Cu NPs were evaluated using ultraviolet spectroscopy. To confirm that Cu NPs can continuously remove organic dyes, this study used Cu/Lj-C composite material adsorbed on cotton balls as a simulated bed to study the cyclic catalytic activity of Cu NPs for the reduction of methylene blue by sodium borohydride (NaBH<sub>4</sub>). …”
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