Showing 3,421 - 3,440 results of 4,366 for search '"optics"', query time: 0.07s Refine Results
  1. 3421

    Compact inverse designed vertical coupler with bottom reflector for sub-decibel fiber-to-chip coupling on silicon on insulator platform by Shiang-Yu Huang, Stefanie Barz

    Published 2025-01-01
    “…The proposed vertical coupler can further miniaturize photonic integrated circuits and enable highly-efficient networks between optical fibers and other photonic devices.…”
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  2. 3422

    Ceramic bricks using pistachio shells as controlled porosity former by Nancy Quaranta, Marta Caligaris, Miguel Unsen, Hugo López, Gisela Pelozo, Adrián Cristóbal

    Published 2023-03-01
    “…Up to this percentage of aggregate, ceramic pieces with very good macroscopic and microscopic characteristics are obtained, with porosity and flexural strength values that meet market requirements for this type of product. Optical microscopy technique has been used to carry out a detailed analysis of the shape and size of the formed pores, which is a specific objective of this work. …”
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  3. 3423

    Effects of Vitrectomy on Recurrent Macular Edema due to Branch Retinal Vein Occlusion after Intravitreal Injection of Bevacizumab by Tatsuya Yunoki, Keiichi Mitarai, Shuichiro Yanagisawa, Tsuyoshi Kato, Nobuo Ishida, Atsushi Hayashi

    Published 2013-01-01
    “…All patients then underwent PPV and were followed up for more than 6 months after the surgery with examinations of best corrected visual acuity (BCVA) and optical coherence tomography (OCT). OCT parameters were central macular thickness (CMT) and average retinal thickness in a 1-mm-diameter circular region at the fovea (MRT). …”
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  4. 3424

    Wetting behaviour and reactivity between liquid Gd and ZrO2 substrate by Turalska P., Homa M., Bruzda G., Sobczak N., Kaban I., Mattern N., Eckert J.

    Published 2017-01-01
    “…The solidified Gd/3YSZ couple was studied by means of optical microscopy and scanning electron microscopy coupled with X-ray energy dispersive spectroscopy. …”
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  5. 3425

    Implementation of Portable Ultrasound for Heart Disease Detection Using Cloud Computing-Based Machine Learning by Riyanto Sigit, Rika Rokhana, Setiawardhana, Taufiq Hidayat, Anwar, Jovan Josafat Jaenputra

    Published 2025-01-01
    “…Tracking utilizes the Optical Flow Lucas-Kanade method, and feature extraction employs Euclidean distance and trigonometric equations. …”
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  6. 3426

    The Relevance and Potential Role of Orbital Fat in Inflammatory Orbital Diseases: Implications for Diagnosis and Treatment by Prince Dadson, Peter Ngum, Luis Eduardo Juarez-Orozco, Michael Ntodie, Piotr Loba

    Published 2024-12-01
    “…Abstract The orbit is an important structure within the skull that houses the eye, optic nerve, and extraocular muscles. It also contains adipose/fat tissue, which provides a protective cushion for these components. …”
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  7. 3427

    A Lifelong Smoker with Hypopituitarism: Rethinking the Hypothesis of a Tumor in the Hypophysis by Nestoras Mathioudakis, Alfredo Quinones-Hinojosa, Roberto Salvatori, Shehzad Basaria

    Published 2012-01-01
    “…Pituitary MRI revealed a 2.0 cm sellar mass impinging upon the optic chiasm. Hypopituitarism was present, with no evidence of diabetes insipidus. …”
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  8. 3428

    Correlation of Macular Focal Electroretinogram with Ellipsoid Zone Extension in Stargardt Disease by Edoardo Abed, Giorgio Placidi, Luigi Calandriello, Marco Piccardi, Francesca Campagna, Matteo Bertelli, Angelo Maria Minnella, Maria Cristina Savastano, Benedetto Falsini

    Published 2017-01-01
    “…Macular function was assessed by visual acuity measurement and focal electroretinogram (FERG) recording while spectral domain optical coherence tomography (SD-OCT) imaging was performed to evaluate the integrity of photoreceptors. …”
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  9. 3429

    Synthesis and Characterization of Zinc Sulfide-Aluminium -Platinum Nanocomposites Produced by Coprecipitation Method by A. Durgadevi, K. Dhayalini, M. Ravichandran

    Published 2025-01-01
    “…SEM examinations provided detailed insights into the morphology of the nanocomposites. The optical properties were assessed through UV spectroscopy, which showed that the ZnS nanocomposites displayed a prominent absorption peak in the 295-300 nm range, with the highest absorption at 299 nm, and a bandgap energy of 3.75 eV. …”
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  10. 3430

    Supervised and Self-Supervised Learning for Assembly Line Action Recognition by Christopher Indris, Fady Ibrahim, Hatem Ibrahem, Götz Bramesfeld, Jie Huo, Hafiz Mughees Ahmad, Syed Khizer Hayat, Guanghui Wang

    Published 2025-01-01
    “…Various feature extractors and localization models were benchmarked using a new assembly dataset, with the I3D model achieving an average mAP@IoU=0.1:0.7 of 85% without optical flow or fine-tuning. The comparative study was extended to self-supervised learning via a modified SPOT model, which achieved a mAP@IoU=0.1:0.7 of 65% with just 10% of the data labeled using extractor architectures from the fully-supervised portion. …”
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  11. 3431

    Towards more efficient, more specific, and safer MRI contrast agents: a Portuguese–French collaborative journey by Pinto, Sara Martinho Almeida, Lacerda, Sara, Morfin, Jean-François, Aroso, Rafael Tiago,  Teixeira, Daniela Sofia de Sousa, Garda, Zoltán, Pereira, Maria Miguens,  Geraldes, Carlos Frederico Gusmão Campos, Tóth, Éva

    Published 2025-01-01
    “…For the specific targeting of amyloid peptides implicated in many pathologies such as Alzheimer’s disease and diabetes, they have designed benzothiazole-derivative metal chelates with detection potential in MRI, optical, and nuclear imaging modalities. The authors have gained valuable insights into the aggregation behavior of these complexes in solution and how this affects peptide binding affinity. …”
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  12. 3432

    Management of Congenital Clinical Anophthalmos with Orbital Cyst: A Kinshasa Case Report by Thomas Stahnke, Andreas Erbersdobler, Steffi Knappe, Rudolf F. Guthoff, Ngoy J. Kilangalanga

    Published 2018-01-01
    “…An early developmental lack of the optic vesicle can result in congenital anophthalmia, defined as a complete absence of the eye, which can be distinguished from congenital microphthalmos, where ocular rudiments are present. …”
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  13. 3433

    Validation of Two MODIS Aerosols Algorithms with SKYNET and Prospects for Future Climate Satellites Such as the GCOM-C/SGLI by Jules R. Dim, Tamio Takamura, Akiko Higurashi, Pradeep Kathri, Nobuyuki Kikuchi, Takahashi Y. Nakajima

    Published 2013-01-01
    “…Potential improvements of aerosols algorithms for future climate-oriented satellites such as the coming Global Change Observation Mission Climate/Second generation Global Imager (GCOM-C/SGLI) are discussed based on a validation study of three years’ (2008–2010) daily aerosols properties, that is, the aerosol optical thickness (AOT) and the Ångström exponent (AE) retrieved from two MODIS algorithms. …”
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  14. 3434

    Bilateral Macular Roth Spots as a Manifestation of Subacute Endocarditis by Karolina Ceglowska, Katarzyna Nowomiejska, Agnieszka Kiszka, Michael J. Koss, Ryszard Maciejewski, Robert Rejdak

    Published 2015-01-01
    “…Fundus examination revealed white-centered hemorrhages resembling Roth spots in both macular regions. The spectral-domain optical coherence tomography (SD-OCT) showed intraretinal pseudocysts and hyperreflective deposits in the areas corresponding to the Roth spots. …”
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  15. 3435

    Deep Swift/UVOT Observations of GOODS-N and the Evolution of the Ultraviolet Luminosity Function at 0.2 < z < 1.2 by Alexander Belles, Caryl Gronwall, Michael H. Siegel, Robin Ciardullo, Mat J. Page

    Published 2025-01-01
    “…We present Swift Ultraviolet Optical Telescope (UVOT) observations of the deep field GOODS-N in four near-UV filters. …”
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  16. 3436

    Estimation of bed shear stress and settling velocity with inertial dissipation method of suspended sediment concentration in cohesive sediment environments by Jongwi Chang, Guan-hong Lee, Ojudoo Darius Ajama, Wenjian Li

    Published 2024-12-01
    “…Comprehensive observations were conducted on the Songdo tidal flats over more than one month in 2023, using both acoustic and optical instruments. Our results suggest that the improved IDM_Sed enhances the accuracy of computed shear stress. …”
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  17. 3437

    Influence of Parameters of Screen Printing on Photoluminescence Properties of Nanophotonic Labels for Smart Packaging by Olha Hrytsenko, Vitaliy Shvalagin, Galyna Grodziuk, Vasyl Granchak

    Published 2017-01-01
    “…It is determined that the use of ink compositions with medium content of ZnO/SiO2 nanoparticles allows obtaining blue-green and blue shades of luminescence color of screen printed images by changing ink layer thickness on papers with different contents of optical brightness agents (OBAs). The minimum content of ZnO/SiO2 nanoparticles in the developed fluorescent inks leads to blue luminescence colors regardless the contents of OBAs of the papers and ink layer thickness. …”
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  18. 3438

    Thickness Mapping of Eleven Retinal Layers Segmented Using the Diffusion Maps Method in Normal Eyes by Raheleh Kafieh, Hossein Rabbani, Fedra Hajizadeh, Michael D. Abramoff, Milan Sonka

    Published 2015-01-01
    “…This study was conducted to determine the thickness map of eleven retinal layers in normal subjects by spectral domain optical coherence tomography (SD-OCT) and evaluate their association with sex and age. …”
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  19. 3439

    Distribution and Thermal Maturity of Devonian Carbonate Reservoir Solid Bitumen in Desheng Area of Guizhong Depression, South China by Yuguang Hou, Yaqi Liang, Sheng He, Yukun Liu, Zhiwei Fan, Yingrui Song

    Published 2017-01-01
    “…The distribution of solid bitumen in the Devonian carbonate reservoir from well Desheng 1, Guizhong Depression, was investigated by optical microscope and hydrocarbon inclusions analysis. …”
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  20. 3440

    Effect of Aging Time and Film Thickness on the Photoelectrochemical Properties of TiO2 Sol-Gel Photoanodes by D. Regonini, A. K. Alves, F. A. Berutti, F. Clemens

    Published 2014-01-01
    “…The importance of the aging time can also be appreciated from the optical properties of the TiO2 films; the absorbance threshold of the sol-gel aged for 3–6 h is slightly shifted towards longer wavelenghts in comparison to 0 h aging. …”
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