Showing 2,761 - 2,780 results of 4,366 for search '"optics"', query time: 0.07s Refine Results
  1. 2761

    Design and simulation of a multichannel sensing system for liquid refractometry based on integrated photonics by A.G. Zakoyan, G.S. Voronkov, V.S. Lyubopytov, A.K. Sultanov, E.P. Grakhova, R.V. Kutluyarov

    Published 2023-12-01
    “…The considered architecture may be useful for implementing fully integrated optical lab-on-a-chip structures, as well as distributed multichannel sensing systems.…”
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    Article
  2. 2762

    Long-Term Follow-Up of the Postoperative Macular Fold following the Vitreoretinal Surgery with Air Tamponade by Ali Osman Saatci, Ozlem Barut Selver, Melih Parlak

    Published 2013-01-01
    “…During the follow-up, retinal fold gradually became less visible and it could be noticeable only by fundus autoflorescence imaging at the sixth postoperative year with a subtle epiretinal membrane formation on the optical coherence tomographic section.…”
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    Article
  3. 2763

    Light Manipulation by Single Cells: The Case of Diatoms by Edoardo De Tommasi

    Published 2016-01-01
    “…The present paper reviews the most relevant studies on optical and photonic properties of diatoms that have been performed throughout the last years making use of SEM characterizations, transmittance measurements at different wavelengths, holographic microscopy, Raman spectroscopy and imaging, photoluminescence spectroscopy, and the predictive support of different numerical simulation algorithms.…”
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    Article
  4. 2764

    Review of Recent Development on Preparation, Properties, and Applications of Cellulose-Based Functional Materials by Ya-Yu Li, Bin Wang, Ming-Guo Ma, Bo Wang

    Published 2018-01-01
    “…In the second half of the 20th century, nanocellulose was extracted with unique properties such as optical transparency, high strength, and high surface area. …”
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    Article
  5. 2765

    Compressed Sensing Photoacoustic Imaging Based on Fast Alternating Direction Algorithm by Xueyan Liu, Dong Peng, Wei Guo, Xibo Ma, Xin Yang, Jie Tian

    Published 2012-01-01
    “…Photoacoustic imaging (PAI) has been employed to reconstruct endogenous optical contrast present in tissues. At the cost of longer calculations, a compressive sensing reconstruction scheme can achieve artifact-free imaging with fewer measurements. …”
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    Article
  6. 2766

    Effect of wavelength on propagation of high-power femtosecond laser pulses in diamond by T.V. Kononenko, E.V. Zavedeev, K.K. Ashikkalieva, V.I. Konov

    Published 2024-06-01
    “…This effect has a certain similarity to the effect of optical limitation in laser filaments, but manifests itself outside the filament formation zone and is capable of equalizing the laser energy density, as well as the electron density, inside the extensive pre-focal region.…”
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    Article
  7. 2767

    Bilateral Multiple Focal Choroidal Excavations in a Patient with Paroxysmal Nocturnal Hemoglobinuria (PNH) by Ping Huang, Tal Ben Ami, Weiye Li

    Published 2019-01-01
    “…Focal choriocapillaris thinning and hyperreflectivity of the adjacent outer nuclear layer were revealed by spectral domain optical coherence tomography, which suggests the occlusion of the choriocapillaries and secondary degeneration of the above photoreceptors. …”
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    Article
  8. 2768

    The Analytical Solutions of the Stochastic Fractional RKL Equation via Jacobi Elliptic Function Method by Farah M. Al-Askar, Wael W. Mohammed

    Published 2022-01-01
    “…Due to the Radhakrishnan-Kundu-Lakshmanan equation’s importance in modeling the propagation of solitons along an optical fiber, the derived solutions are vital for characterizing a number of key physical processes. …”
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    Article
  9. 2769

    Photoresponse of Long-Wavelength AlGaAs/GaAs Quantum Cascade Detectors by Liang Li, Dayuan Xiong

    Published 2015-01-01
    “…We confirmed that the photocurrent comes from phonon assisted tunneling and the multipeak behavior comes from the complicated optical transition in the quantum cascade structure. …”
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    Article
  10. 2770

    Travelling Wave Solutions for Nonlinear Schrödinger Equation with a Higher-Order Dispersive Term by Rui Cao

    Published 2013-01-01
    “…A nonlinear Schrödinger equation with a higher-order dispersive term describing the propagation of ultrashort femtosecond pulses in optical fibres is considered and is transformed into a second-order nonlinear ordinary differential equation. …”
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    Article
  11. 2771

    Multimodal Imaging Analysis in a Case with Congenital Fovea-Involving Retinal Macrovessel and Excellent Visual Acuity by Vishal Shah, M. Ashwin Reddy, Vasilios P. Papastefanou

    Published 2017-01-01
    “…Congenital retinal macrovessels (CRM) represent rare aberrant vasculature of the retinal vessels that can supply or drain the macula. In this report, the optical coherence tomography angiography features of a congenital retinal macrovessel are discussed. …”
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    Article
  12. 2772

    Comparison of Photonic to Plasmonic Mode Converters for Plasmonic Multiple-Input Devices by Samantha Lubaba Noor, Francky Catthoor, Dennis Lin, Pol Van Dorpe, Azad Naeemi

    Published 2024-01-01
    “…Implementing a compact optical integrated circuit by utilizing subwavelength plasmonic devices requires the design of compact and efficient photonic to plasmonic mode converters. …”
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    Article
  13. 2773

    Luminescent Solar Concentrators Fabricated by Dispersing Rare Earth Particles in PMMA Waveguide by Cheng Liu, Ruijiang Deng, Yanlin Gong, Cheng Zou, Yong Liu, Xiang Zhou, Baojun Li

    Published 2014-01-01
    “…A series of LSCs (dimension 5.0 cm × 5.0 cm × 0.5 cm) with different CaAlSiN3 : Eu2+ particle concentration were obtained and their performance was evaluated. The maximum optical concentration ratio is 1.23 with a power conversion efficiency of 1.44% for the LSC containing 0.5 wt% CaAlSiN3 : Eu2+ particles concentration. …”
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    Article
  14. 2774

    Investigation of very high cycle fatigue by thermographyc method by V. Crupi, G. Epasto, E. Guglielmino, G. Risitano

    Published 2014-10-01
    “…The failure mechanism of the investigated steels was evaluated by means of several experimental techniques (scanning electron microscopy, Energy Dispersive X-ray spectroscopy and Optical Microscopy).…”
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    Article
  15. 2775

    Surface Laser Quenching as an Alternative Method for Conventional Quenching and Tempering Treatment of 1538 MV Steel by R. Carrera-Espinoza, A. Rojo Valerio, J. del Prado Villasana, J. A. Yescas Hernández, P. Moreno-Garibaldi, M. A. Cruz-Gómez, U. Figueroa López

    Published 2020-01-01
    “…In order to identify the wear mechanisms, the worn surfaces on the disks were evaluated by scanning electron microscopy and the wear scars on the ball were observed by optical microscopy. Results reveal that laser treatment reduces the average friction coefficient by 25% and the wear rate by 60% compared with those achieved by the conventional methods, while the depths of the wear track and hardness of the cross section and surface are maintained.…”
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    Article
  16. 2776

    Spectrophotometric Methods for the Assay of Fluvoxamine Using Chromogenic Reagents by V. Annapurna, G. Jyothi, V. Nagalakshmi, B. B. V. Sailaja

    Published 2010-01-01
    “…The ligating property of FXA with sodium nitro prusside is incorporated in method C. The optical characteristics such as Beers law limits, molar absorptivity and Sandell’s sensitivity for the methods (A-C) are given. …”
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    Article
  17. 2777

    Multilayers Polyethylene Film for Crop Protection in Harsh Climatic Conditions by A. Dehbi, B. Youssef, C. Chappey, A.-H. I. Mourad, P. Picuno, D. Statuto

    Published 2017-01-01
    “…Surface morphology and chemical, physical, and thermal characteristics were investigated by using optical microscopy, FTIR, and tensile test techniques. …”
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    Article
  18. 2778

    High Dielectric Constant Study of TiO2-Polypyrrole Composites with Low Contents of Filler Prepared by In Situ Polymerization by Khalil Ahmed, Farah Kanwal, Shahid M. Ramay, Asif Mahmood, Shahid Atiq, Yousef S. Al-Zaghayer

    Published 2016-01-01
    “…TiO2/polypyrrole composites with high dielectric constant have been synthesized by in situ polymerization of pyrrole in an aqueous dispersion of low concentration of TiO2, in the presence of small amount of HCl. Structural, optical, surface morphological, and thermal properties of the composites were investigated by X-ray diffractometer, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, and thermogravimetric analysis, respectively. …”
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    Article
  19. 2779

    Measurement of polystyrene photodegradation rate using a quartz crystal microbalance by Abdullah N. Alodhayb

    Published 2022-04-01
    “…Results revealed that QCM sensor irradiation with ultraviolet light with a wavelength of 365 nm and optical power of 1.5 mW caused a quite significant change in the polymer structure.…”
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    Article
  20. 2780

    Study on a Mid-Temperature Trough Solar Collector with Multisurface Concentration by Zhengliang Li, Mingxian Chen, Husheng Meng, Zehui Chang, Hongfei Zheng

    Published 2015-01-01
    “…The concentrator was analyzed firstly by using optical software. The variation curves of the collecting efficiency affected by tracking error and the deviation angle were given out. …”
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    Article