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Showing 701 - 720 results of 3,725 for search 'optical different method', query time: 0.14s Refine Results
  1. 701

    Processing of Eddy Current Infrared Thermography and Magneto-Optical Imaging for Detecting Laser Welding Defects by Pengyu Gao, Xin Yan, Jinpeng He, Haojun Yang, Xindu Chen, Xiangdong Gao

    Published 2025-01-01
    “…Infrared (IR) magneto-optical (MO) bi-imaging is an innovative method for detecting weld defects, and it is important to process both IR thermography and MO imaging characteristics of weld defects. …”
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    Article
  2. 702

    Preparation and Study of the Structural and Optical Properties of TiO2 – Ag-ZnO Nanoparticles by Nooraluhda Zaed, Tahseen H. Mubarak, Nadia M. Jassim

    Published 2025-04-01
    “…On biological application, (Ag NPs,TiO2 NPs, ZnO NPs, TiO2/Ag and TiO2/Ag/ZnO NPs) prepared with different laser standards in distilled water were used as anti-bacterial agents. …”
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    Article
  3. 703

    Multi-Channel Optical Coherence Elastography Using Relative and Absolute Shear-Wave Time of Flight. by Eli Elyas, Alex Grimwood, Janine T Erler, Simon P Robinson, Thomas R Cox, Daniel Woods, Peter Clowes, Ramona De Luca, Franco Marinozzi, Jérémie Fromageau, Jeffrey C Bamber

    Published 2017-01-01
    “…Shear-wave time of arrival (TOA) was detected by tracking the axial OCT-speckle motion using cross-correlation methods. Shear-wave speed was then calculated from inter-channel differences of TOA for a single burst (the relative TOA method) and compared with the shear-wave speed determined from positional differences of TOA for a single channel over multiple bursts (the absolute TOA method). …”
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    Article
  4. 704

    Optical coherence tomography findings in bipolar disorder - A hospital-based case-control study by Shabir Ahmad Dar, Rayees Ahmad Wani, Ruqaiya, Ishfaq Ahmad Sofi, Inaamul Haq

    Published 2025-05-01
    “…Aim: To evaluate the retinal nerve fiber layer (RNFL), macular, and subfoveal choroidal thickness (SFCT) in patients with bipolar disorder type-1 (BD-1) and healthy controls. Materials and Methods: This was a cross-sectional hospital-based study in which 49 patients of BD-1 were in different phases of illness, and an equal number of normal healthy controls were taken. …”
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    Article
  5. 705

    LDPC-Coded Generalized Frequency Division Multiplexing for Intensity-Modulated Direct-Detection Optical Systems by Dong Guo, Wei Zhang, Feng Tian, Jianyang Shi, Kaihui Wang, Miao Kong, Junwen Zhang, Kai Lv, Deng'ao Li, Xiaolong Pan, Xiangjun Xin

    Published 2019-01-01
    “…In this paper, a low-density parity check (LDPC) coded GFDM with high-level modulation scheme is proposed for more flexible and advanced multicarrier modulation in intensity-modulated/direct-detection (IM/DD) optical systems. Then, we experimentally demonstrate an LDPC-coded GFDM with 16-quadrature amplitude modulation (16QAM) system transmitted over 20-km standard single-mode fiber at different symbol rates to verify the applicability of the proposed scheme. …”
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    Article
  6. 706
  7. 707

    Microdisk Resonator With Negative Thermal Optical Coefficient Polymer for Refractive Index Sensing With Thermal Stability by Tao Ma, Jinhui Yuan, Feng Li, Lei Sun, Zhe Kang, Binbin Yan, Qiang Wu, Xinzhu Sang, Kuiru Wang, Heng Liu, Fang Wang, Bo Wu, Chongxiu Yu, Gerald Farrell

    Published 2018-01-01
    “…In this paper, we propose a microdisk resonator with negative thermal optical coefficient (TOC) polymer for refractive index (RI) sensing with thermal stability. …”
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    Article
  8. 708

    A joint learning approach for automated diagnosis of keratinocyte carcinoma using optical attenuation coefficients by Lei Zhang, Xiaoran Li, Wen Chen, Yuanjie Gu, Hao Wu, Zhong Lu, Biqin Dong

    Published 2025-04-01
    “…Here, we propose an automated diagnostic method using the optical attenuation coefficient (OAC) and a joint learning strategy to classify AK, BCC, and normal skin. …”
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    Article
  9. 709

    Experimental and Numerical Study of Slug-Flow Velocity Inside Microchannels Through In Situ Optical Monitoring by Samuele Moscato, Emanuela Cutuli, Massimo Camarda, Maide Bucolo

    Published 2025-05-01
    “…In this study, we present an on-chip experimental method for estimating the slug-flow velocity in microchannels through in situ optical monitoring. …”
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    Article
  10. 710

    IMPROVING OPTICAL QUANTUM EFFICIENCY BY CHANGING THE THICKNESS OF CIGS SOLAR CELLS USING NANOTECHNOLOGY SOFTWARE by Amir M. Nory, Haneafa Y. Najem, Omar I. Alsaif

    Published 2025-07-01
    “…The thickness of three layers was changed for optical wavelength range (300 –1200) nm, then the optical quantum efficiency was studied and compared with the measured model. …”
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    Article
  11. 711
  12. 712

    Research on Metal Mesh Coupling Mirrors Utilizing Metasurfaces for Optically Pumped Gas THz Lasers by Lijie Geng, Zhenxiang Fu, Shuaifei Song, Chenglong Bi, Wenyan Zhang, Ruiliang Zhang, Kun Yang, Yanchen Qu

    Published 2025-06-01
    “…Taking the THz laser with the 118.8 µm of CH<sub>3</sub>OH optically pumped by the 9.6 µm CO<sub>2</sub> laser line for instance, two kinds of metal mesh were devised as input and output couplers of the resonator, and the transmittance and reflectance of the metal meshes are verified by the finite-difference time-domain (FDTD) method. …”
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    Article
  13. 713

    Calculation of IOL Optical Power Using OKULIX Ray-Tracing Software in Real Clinical Practice by K. B. Pershin, N. F. Pashinova, A. Yu. Tsygankov, I. V. Kosova

    Published 2023-04-01
    “…Comparative analysis of the accuracy of IOL optical power calculation using different biometric devices.Patients and methods. …”
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    Article
  14. 714
  15. 715

    Multitemporal observation of Karla reservoir in Thessaly Greece utilizing SAR and optical remotely sensing imagery by Triantafyllos FALARAS, Maria KOILAKOU, Leonidas TSOUKALAS

    Published 2020-12-01
    “…For SAR imagery an image segmentation method with a dynamic threshold operator based on mean values is utilized, while for optical imagery the Normalized Difference Water Index (NDWI) is applied. …”
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    Article
  16. 716

    All-optical convolutional neural network based on phase change materials in silicon photonics platform by Samaneh Amiri, Mehdi Miri

    Published 2025-07-01
    “…The individual optical elements, network layers and the overall convolution network are simulated using finite-difference time-domain method, coupled mode theory and Python programming, respectively. …”
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    Article
  17. 717

    Chemical, Structural and Optical Properties of ē-Beam Evaporated Tungsten Diselenide Polycrystalline Thin Film by Mayur M. Patel, K.D. Patel, V.M. Pathak, R. Srivastava

    Published 2012-10-01
    “…The prepared films were characterized using EDAX spectrum, X-ray diffraction, Electron diffraction, Scanning electron microscopy and optical absorption spectroscopy methods. The as grown films were found to be partially transparent, uniform and well adherent. …”
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    Article
  18. 718

    Optical, Mechanical and Electrical Characteristics of Thermal Uncooled Bolometric Type Detector Based on Vanadium Oxide by Van Trieu Tran, K. V. Korsak, P. E. Novikov, I. Yu. Lovshenko, S. M. Zavadski, D. A. Golosov, A. A. Stepanov, A. А. Hubarevich, V. V. Kolos, Ya. A. Solovjov, D. S. Liauchuk, V. R. Stempitsky

    Published 2024-01-01
    “…The paper presents the results of optimization calculations by means of computer simulation of absorption, transmittance and reflection spectra of device structures of microbolometers based on thermosensitive vanadium oxide film by finite-difference time-domain method (FDTD). The characteristics of the investigated microbolometer structure were checked for compliance with mechanical and electrical requirements for this class of devices.…”
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  19. 719

    Comparative characteristic of standards of the optical density of bone tissue in the periapical region at persons of young age by A. F. Yusupova, L. P. Gerasimova, I. N. Usmanova, A. P. Sorokin

    Published 2019-02-01
    “…Methods — to determine the parameters of the optical density in the focus of destruction, the data of radiovisiography and dental computed tomograms were analyzed. 68 people aged 20-30 years, with various forms of chronic apical periodontitis without endodontic intervention in the anamnesis were examined. …”
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    Article
  20. 720

    Optical XOR logic gate design in two dimensional photonic crystal using ANN and PSO by Farsad Heidari, Delir Pashabadi, Mohammad Fathi, Mohammad Razaghi

    Published 2025-07-01
    “…A dataset of 555 samples, obtained from the Finite-Difference Time-Domain (FDTD) method, is used to train the ANN model. …”
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    Article