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  1. 861

    Coupling SAR and optical remote sensing data for soil moisture retrieval over dense vegetation covered areas. by Jiahao Shi, Huan Yang, Xinli Hou, Honglu Zhang, Guozhong Tang, Heng Zhao, Fuqiang Wang

    Published 2025-01-01
    “…In this study, based on Sentinel-1 SAR and Sentinel-2 optical remote sensing data, a coupling approach was employed to retrieval surface soil moisture over dense vegetated areas. …”
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    Article
  2. 862

    Modeling of The Nitrogen Requirement of Winter Wheat for Protein Content Using Optical Sensor in Central Anatolia Region of Türkiye by Uğur Yegül, Burak Şen, Savaş Kuşcu, Ufuk Türker

    Published 2023-10-01
    “…For smallholders in developing countries, the use of a hand-held meter to manage nitrogen fertilizer in rice and wheat is the most popular method. The adoption of nitrogen management strategies based on close sensing using chlorophyll meters and optical sensors will largely depend on the inclusion of specific economic analysis in future research. …”
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    Article
  3. 863

    Real-Time Analysis of Athletes’ Physical Condition in Training Based on Video Monitoring Technology of Optical Flow Equation by Cuijuan Wang

    Published 2021-01-01
    “…After that, through the analysis of the existing methods, compared with some algorithms that only process a single frame in the video, this article analyzes the continuous multiple frames in the video and extracts the continuous multiple frames of the sampling points through the Lucas-Kanade optical flow method. …”
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    Article
  4. 864

    Detection and Strong Classification of Natural Weld Defects by Magneto-Optical Imaging Under Rotating Magnetic Field Excitation by Yanfeng Li, Xiangdong Gao, Yanxi Zhang

    Published 2024-01-01
    “…The principal component analysis (PCA) method and the Tamura method are used to extract the grayscale values and texture features of natural weld defect’s MO images, respectively. …”
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    Article
  5. 865

    Design of Optical Sensor Membrane Based on Polymer Poly(methyl methacrylate) for Paracetamol Detection in Traditional Herbal Medicine by Rimadani Pratiwi, Shelvy Elizabeth Suherman, Rajkannah A. L. Poongan, Mutakin Mutakin, Aliya Nur Hasanah

    Published 2018-01-01
    “…The results show that optical sensor membrane which has been developed can be used as new detection method of paracetamol for community application.…”
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    Article
  6. 866

    Ultrasensitive Temperature Sensor With Cascaded Fiber Optic Fabry–Perot Interferometers Based on Vernier Effect by Jin Zhang, Hao Liao, Ping Lu, Xinyue Jiang, Xin Fu, Wenjun Ni, Deming Liu, Jiangshan Zhang

    Published 2018-01-01
    “…Temperature sensitivity of the sensing FPI is much higher than the reference FPI, which means that the reference FPI need not to be thermally isolated. By curve fitting method, three different temperature sensitivities of 33.07, −58.60, and 67.35 nm/°C have been experimentally demonstrated with different cavity lengths ratio of the sensing and reference FPI, which can be flexibly adjusted to meet different application demands. …”
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    Article
  7. 867
  8. 868

    Research Paper: Application of Stimulated Brillouin Scattering in Distributed-Temperature Sensors Using Single-Mode Optical Fibers by Mohammadreza Rezazadeh Shirazi

    Published 2025-03-01
    “…Then, using a curve-fitting method based on another reported experimental data set, different-order polynomials of degrees up to six are considered for the acoustic wave velocity with temperature. …”
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    Article
  9. 869
  10. 870

    Influence of TiO2 nanoparticles on the optical and structural properties of PPV thin films converted at low temperatures by B. Rostirolla, E. Laureto, M. A. T. da Silva, H. de Santana, I. F. L. Dias, J. L. Duarte

    Published 2013-08-01
    “…We observed that the introduction of the dye resulted in an additional absorbance band near 550–700 nm, which can be beneficial to the photon harvesting capacity of the polymer if it is used as the donor material in a photovoltaic device. We studied how the optical and structures properties of this blend change when different quantities of TiO2 nanoparticles are introduced. …”
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    Article
  11. 871

    Applicability of Optical Emission Spectroscopy for Industrial Flame Analysis with Hydrogen and Natural Gas Mixtures Based on Laboratory Study by Arto Rautioaho, Henri Pauna, Mikko Jokinen, Oskari Seppälä, Elsa Busson, Lukas Sankowski, Ville-Valtteri Visuri, Timo Fabritius

    Published 2025-06-01
    “…This study investigates optical emission spectroscopy as an analysis method for hydrogen and natural gas burner flames relevant to industrial use. …”
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    Article
  12. 872

    Study of the influence of sintering additives and vacuum sintering conditions on optical properties of LuAG:Er (1 at.%) ceramics by E.V. Medyanik, F.F. Malyavin, V.A. Lapin, A.A. Kravtsov, V.E. Suprunchuk, L.V. Tarala

    Published 2024-12-01
    “…The article discusses in detail how the microstructure and optical transmission of ceramics with sintering additives MgO and CaO change at different vacuum sintering temperatures. …”
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    Article
  13. 873

    Investigating How Cu Addition Affects the Gas Sensing, Electrical, Optical and Structural Properties of ZnO Nanoparticles by Fatemeh Moosavi, Giovanni Neri

    Published 2024-06-01
    “…In this study, we report the morphological and microstructural characteristics (phase, crystallinity, morphology, surface functional groups) as well as the optical, electrical and gas sensing properties of pristine ZnO and Cu-doped ZnO nanoparticles prepared by a simple sol-gel method. …”
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    Article
  14. 874

    Electronic Structure and Optical Properties of GaAs Doped with Rare-Earth Elements (Sc, Y, La, Ce, and Pr) by Yongrong Deng, Chunhong Zhang, Xinmao Qin, Wanjun Yan

    Published 2025-01-01
    “…Herein, the electronic structure and optical properties of GaAs doped with rare-earth elements (Sc, Y, La, Ce, and Pr) were evaluated using the first-principles method. …”
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    Article
  15. 875

    Azimuthal mode decomposition of millimeter-wave integer and non-integer optical vortices generated by a spiral mirror by Y. Goto, T. I. Tsujimura, S. Kubo

    Published 2025-02-01
    “…We investigated the characteristics of both integer and non-integer optical vortices (OVs) in the millimeter-wave regime generated by a spiral mirror. …”
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    Article
  16. 876

    Differential diagnosis between psoriatic arthritis and hand osteoarthritis using indocyanine green-based fluorescence optical imaging by Benedict Drude, Øystein Maugesten, Stephanie G. Werner, Jens Klotsche, Jens Klotsche, Gerd-Rüdiger Burmester, Gerhard Krönke, Marina Backhaus, Jörn Berger, Ida Kristin Haugen, Sarah Ohrndorf

    Published 2025-08-01
    “…The aim of this study was to differentiate active PsA from EHOA using FOI.MethodsAn atlas with FOI images of different grades of enhancement (FOIAS 0–3) and typical morphologic patterns (‘Streaky signals’, ‘Green/Blue Nail sign’, ‘Werner sign’, and ‘Bishop’s crozier sign’) for PsA and hand EHOA was created. …”
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    Article
  17. 877

    Improved YOLOv5s With Coordinate Attention for Small and Dense Object Detection From Optical Remote Sensing Images by Qinggang Wu, Yonglei Wu, Yang Li, Wei Huang

    Published 2024-01-01
    “…The objects in optical high-resolution remote sensing images (HRRSIs) are usually tiny, dense, and exist in complex backgrounds, which brings great challenges to accurate object detection. …”
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    Article
  18. 878

    XOR Logic Gate by Carbon/Metal Nanoinks Based on a Double-Stage Optical Kerr Gate Configuration by J. A. García-Merino, E. Feria-Reyes, C. Mercado-Zúñiga, M. Trejo-Valdez, C. R. Torres-San Miguel, J. R. Vargas-García, C. Torres-Torres

    Published 2018-01-01
    “…Two-input binary exclusive-or logic operations were presented by the assistance of multiwall carbon nanotubes in a double-stage optical Kerr gate scheme with two control beams. The samples were prepared by the aerosol pyrolysis method and decorated by platinum nanoparticles using a chemical vapor deposition technique. …”
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    Article
  19. 879

    Smart prediction of rock crack opening displacement from noisy data recorded by distributed fiber optic sensing by Shuai Zhao, Shao-Qun Lin, Dao-Yuan Tan, Hong-Hu Zhu, Zhen-Yu Yin, Jian-Hua Yin

    Published 2025-05-01
    “…The commonly used method for estimating crack opening displacement (COD) is based on analytical models derived from strain transferring. …”
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    Article
  20. 880