Showing 3,821 - 3,840 results of 4,366 for search '"optics"', query time: 0.06s Refine Results
  1. 3821

    Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection by Huahu Luo, Fafa Wu, Chaowei He, Wanfu Shen, Chunguang Hu, Weina Zhao, Peng Yu, Guowei Yang

    Published 2024-11-01
    “…Angle-resolved polarized Raman spectroscopy, in conjunction with azimuth-dependent reflectance difference microscopy, confirmed that 1D NbTe₄ exhibits intrinsic structural and in-plane optical anisotropy. The 1D NbTe4 device demonstrated characteristic anisotropic photodetection behavior, achieving dichroic ratios of 1.16 at 671 nm and 1.25 at 1064 nm. …”
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  2. 3822

    Chemical, Mineralogical, and Refractory Characterization of Kaolin in the Regions of Huayacocotla-Alumbres, Mexico by L. M. Romero-Guerrero, R. Moreno-Tovar, A. Arenas-Flores, Y. Marmolejo Santillán, F. Pérez-Moreno

    Published 2018-01-01
    “…In the present work, the chemical, mineralogical, refractory, and microstructural characterizations of kaolinites from the Huayacocotla-Alumbres region, which is between Veracruz and Hidalgo border, by X-ray diffraction (XRD), polarization optical microscopy (POM), scanning electron microscopy (SEM), refractoriness proof (pyrometric cone equivalent), and thermogravimetric analysis (TGA) were carried out. …”
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  3. 3823

    A preliminary study of health risk assessment and heavy metals exposure among residents in Kampar, Perak by Low Yi Chen, Hang Zhong Yu, Guo XinXin, How Vivien, Wai Soon Han, Lim Fang Lee

    Published 2025-01-01
    “…The indoor dust samples of residential houses (n=34) were collected and analysed for the concentration of heavy metals (Fe, Zn, Cu, Pb, Cr, Mn) using inductively coupled plasma mass optical emission spectrometry (ICP-OES). Health risk due to heavy metals exposure were assessed by determining the Carcinogenic Risk (CR), Hazard Quotient (HQ) and Hazard Index (HI). …”
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  4. 3824

    Mechanism and Optimized Process Conditions of Forming One-Dimensional ZnO Nanorods with Al-Doping by Electrodeposition Method by Jianlin Chen, Yu Zhang, Wei Qiu, Shu Chen, Chang Liu, Zhuoyin Peng, Jian Chen

    Published 2021-01-01
    “…Taking into account of desired morphology and phase purity, as well as good electrical conductivity and optical transmittance, the optimal window of Al3+/Zn2+ ratio in the precursors was determined between 1 at% and 2 at% with applied potential of -1.5V, bath temperature of 80°C, and deposition time of about 30min. …”
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  5. 3825

    Ensemble automated approaches for producing high‐quality herbarium digital records by Robert P. Guralnick, Raphael LaFrance, Julie M. Allen, Michael W. Denslow

    Published 2025-01-01
    “…We next quantified omission and commission error rates across target fields for a set of labels transcribed using optical character recognition (OCR) for both approaches. …”
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  6. 3826

    In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding by Hao Zhang, Yang Zhang

    Published 2025-01-01
    “…Microhardness was measured by a Vickers microhardness tester and analyzed using an optical microscope. Residual stress was evaluated using an X-ray residual stress tester. …”
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  7. 3827

    Density functional theory study of Chlorine, Fluorine, Nitrogen, and Sulfur doped rutile TiO2 for photocatalytic application by Fikadu Takele Geldasa, Francis Birhanu Dejene, Mesfin Abayneh Kebede, Fekadu Gashaw Hone, Edosa Tasisa Jira

    Published 2025-01-01
    “…Abstract This study uses the Quantum ESPRESSO code to introduce Hubbard correction (U) to the density functional theory (DFT) in order to examine the effects of non-metals (C, F, N, and S) doping on the structural, electronic, and optical characteristics of rutile TiO2. Rutile TiO2 is a substance that shows promise for use in renewable energy production, including fuels and solar energy, as well as environmental cleanup. …”
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  8. 3828

    Parasitic contamination of lettuce: comparison between establishments located in areas with high and low economic values by Gustavo Trentini Barancelli, Larissa Kochenborger, Fernanda Gracieli Machado Brum, Fabiana Tonial, Cassiano Mateus Forcelini

    Published 2025-02-01
    “…Methods: We assessed the presence of parasites in the curly lettuces sold in the city of Passo Fundo, Brazil, and compared the frequency of contamination between markets and fruit stores, and between areas with high and low economic values. 130 samples of lettuce from 65 commercial establishments scattered throughout the city were washed with distilled water and analyzed under optical microscopy after 24 hours of spontaneous sedimentation method. …”
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  9. 3829

    Crystal structure modulating performances for 213-nm GeO2 solar-blind photodetectors via DC reactive magnetron sputtering method by Chengming Wei, Jiabao Liu, Xinru Lan, Cheng Yang, Shuiping Huang, Dongdong Meng, Zhengwei Chen, Hongguang Duan, Xu Wang

    Published 2025-02-01
    “…However, the precise control of the crystal structure and optical property is a huge challenge due to close free formation energies of multiple phases, inhibiting the GeO2 based practical device applications. …”
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  10. 3830

    Zinc-Based Semiconductors/Polymer Thin Films Junction for Photovoltaic Application by Souad Al-bat’hi, K. A. Buhari, M. I. Latiff

    Published 2012-01-01
    “…The highest ionic conductivity of the polymer electrolyte was 1.18×10−5 S cm−1 at room temperature. Structural and optical properties of the semiconductor thin films were characterized by X-ray diffractometer and UV-Vis spectrophotometer. …”
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  11. 3831

    Effect of Topically Administered Chitosan-N-acetylcysteine on Corneal Wound Healing in a Rabbit Model by Corinna Fischak, Robert Klaus, René M. Werkmeister, Christine Hohenadl, Martin Prinz, Leopold Schmetterer, Gerhard Garhöfer

    Published 2017-01-01
    “…Monitoring of corneal wound healing was performed with ultra-high-resolution optical coherence tomography (OCT) and epithelial fluorescein staining. …”
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  12. 3832

    First-principles study of structural, elastic, electronic, transport properties, and dielectric breakdown of Cs2Te photocathode by Gaoxue Wang, Jinlin Zhang, Chengkun Huang, Dimitre A. Dimitrov, Anna Alexander, Evgenya I. Simakov

    Published 2025-01-01
    “…The low mobility is primarily limited by the strong polar optical phonon scattering. Cs2Te also exhibits ultralow lattice thermal conductivity of 0.2 W/(m*K) at room temperature. …”
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  13. 3833

    Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS by Yucheng Wang, Yang Li, Zhouhua Jiang, Meng Sun, Shuai Ma, Yunqie Mao, Yanshuo Ma, Tianci Li, Dengyunfei Nie, Rui Yang

    Published 2025-03-01
    “…To examine the influence of Zr on the inclusions and microstructure of non-quenched and tempered F38MnVS steel, optical microscopy (OM), scanning electron microscopy (SEM), high-temperature laser confocal microscopy (HT-CLSM), transmission electron microscopy (TEM), and thermodynamic calculations among others are utilized. …”
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  14. 3834

    Choroidal and Retinal Thickness of Highly Myopic Eyes with Early Stage of Myopic Chorioretinopathy: Tessellation by Yanping Zhou, Minlu Song, Minwen Zhou, Yiming Liu, Fenghua Wang, Xiaodong Sun

    Published 2018-01-01
    “…RT and CT were quantified using optical coherence tomography with enhanced depth imaging (EDI-OCT). …”
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  15. 3835

    Impact of Annually Variable Dust Activity on the Recession of the Martian South Polar Seasonal Cap by Zhibin Li, Jianjun Liu, Renhao Tian, Zhaopeng Chen, Qing Zhang, Jingjing Zhang, Wei Yan, Qiang Fu, Shaoran Liu, Nannan Ma

    Published 2025-01-01
    “…Here, we performed a combined analysis on the extents of SPSC from MY28-MY31 and MY36, together with the concurrent Martian atmospheric optical thickness, to assess the influence of dust activity at various recession time steps. …”
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  16. 3836

    Constraints on Relativistic Jets from the Fast X-Ray Transient 210423 Using Prompt Radio Follow-up Observations by Dina Ibrahimzade, R. Margutti, J. S. Bright, P. Blanchard, K. Paterson, D. Lin, H. Sears, A. Polzin, I. Andreoni, G. Schroeder, K. D. Alexander, E. Berger, D. L. Coppejans, A. Hajela, J. Irwin, T. Laskar, B. D. Metzger, J. C. Rastinejad, L. Rhodes

    Published 2025-01-01
    “…Here we present deep optical ( g - and i -band) photometry with Keck, and prompt radio observations with the Very Large Array of FXT 210423 obtained at δ t ≈ 14–36 days since the X-ray trigger. …”
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  17. 3837

    A Facile Route to the Preparation of Highly Uniform ZnO@TiO2 Core-Shell Nanorod Arrays with Enhanced Photocatalytic Properties by Yuanyuan Zhao, Peifei Tong, Dong Ma, Bing Li, Qinzhuang Liu, San Chen, Yongxing Zhang

    Published 2017-01-01
    “…The improved photocatalytic activity could be attributed to the core-shell structure, which can effectively reduce the recombination rate of electron-hole pairs, significantly increase the optical absorption range, and offer a high density of surface active catalytic sites for the decomposition of organic pollutants. …”
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  18. 3838

    Application of Generative Artificial Intelligence Models for Accurate Prescription Label Identification and Information Retrieval for the Elderly in Northern East of Thailand by Parinya Thetbanthad, Benjaporn Sathanarugsawait, Prasong Praneetpolgrang

    Published 2025-01-01
    “…Two model architectures were explored: a Two-Stage Optical Character Recognition (OCR) and Large Language Model (LLM) pipeline combining EasyOCR with Qwen2-72b-instruct and a Uni-Stage Visual Question Answering (VQA) model using Qwen2-72b-VL. …”
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  19. 3839

    Accelerated Corneal Collagen Cross-Linking Using Topography-Guided UV-A Energy Emission: Preliminary Clinical and Morphological Outcomes by Cosimo Mazzotta, Antonio Moramarco, Claudio Traversi, Stefano Baiocchi, Alfonso Iovieno, Luigi Fontana

    Published 2016-01-01
    “…Uncorrected (UDVA) and corrected (CDVA) distance visual acuity, topography, in vivo confocal microscopy (IVCM), and anterior segment optic coherence tomography (AS-OCT) were evaluated preoperatively and at the 1, 3, 6, and 12 months postoperatively. …”
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  20. 3840

    A thin film optoelectronic photodetector of spherical and linear resonators via one-pot synthesis of Bi(III) oxide/polypyrrole nanocomposite by Fatemah H. Alkallas, Mohamed Rabia, Fedor V. Kusmartsev, Amira Ben Gouider Trabelsi

    Published 2025-01-01
    “…The XRD analysis reveals that the Bi2O3 nanoparticles have a poly-crystalline nature with a crystal size of 40 nm and an optical bandgap of 2.86 eV. The SEM images show that the nanoparticles are agglomerated into clusters of about 100 nm in diameter, with pores of about 200 nm in width. …”
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