Showing 3,601 - 3,620 results of 4,366 for search '"optics"', query time: 0.08s Refine Results
  1. 3601

    Retinal Microvascular Density and Perfusion during an Insulin-Induced Hypoglycemia Episode: A Warning Call by Gerardo González-Saldivar, José Gerardo González-González, David Robert Chow, Jesús Mohamed-Hamsho, Jesús Hernan González-Cortés, Adriana Sánchez-García, René Rodríguez-Gutiérrez

    Published 2023-01-01
    “…To evaluate retinal vascular perfusion and density by optical coherence tomography angiography (OCTA) before, during, and after hypoglycemia in individuals with diabetes mellitus with or without diabetic retinopathy (DR). …”
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  2. 3602

    Dynamics of Photoinduced Charge Carrier and Photothermal Effect in Pulse-Illuminated Narrow Gap and Moderate Doped Semiconductors by Slobodanka Galovic, Katarina Djordjevic, Milica Dragas, Dejan Milicevic, Edin Suljovrujic

    Published 2025-01-01
    “…Using the calculated distribution and inverse Laplace transform, the dynamics of recombination photoinduced heat sources at the surfaces of semiconducting samples were studied for pulse optical excitations of very short and very long durations. …”
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  3. 3603

    Effect of silver content on the wear and mechanical properties of powder metallurgical Ti-5Al-2.5Fe-xAg alloys by Yamanoglu R., Khoshnaw F., Daoud I., Efendi E.

    Published 2020-01-01
    “…The microstructural characterization was carried out by means of optical and scanning electron microscope. The results showed that Ag played a differential role on the mechanical properties supported by microstructural constituents. …”
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  4. 3604

    Feasibility Study of an Alcohol-Based Liquid Scintillation Detector and Its Application by Byoung Chan Kim, Ji Young Choi, Kyung Kwang Joo, Seon Yeong Park, Ye Sung Song, Hee Jin Woo

    Published 2021-01-01
    “…The several feasible physical and optical properties of an alcohol-based liquid scintillator were investigated and presented. …”
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  5. 3605

    Low-temperature biodegradation of freshwater dissolved organic matter during winter-to-spring transition by Corentin Bouvet, Pascale B. Beauregard, Céline Guéguen

    Published 2025-02-01
    “…We employed a four-bacteria strain inoculum (Arthrobacter phenanthrenivorans, Bacillus licheniformis, Exiguobacterium sibiricum, and Paracoccus denitrificans) to degrade DOM collected during this period. Using advanced optical and molecular characteristics techniques, we demonstrated significant DOM bioalteration at low temperatures (4°C), which are naturally associated with early spring in cold temperate lakes and wetlands. …”
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  6. 3606

    Microstructure, Mechanical, and Electrical Properties and Corrosion Analysis of Lead-Free Solder CSI Joints on Cu Substrate Using Novel Concentrated Solar Energy Soldering (CSES) M... by Pushkaraj D. Sonawane, V. K. Bupesh Raja, Manoj Gupta

    Published 2020-01-01
    “…Tensile strength, bending/flexural strength, microhardness, electrical resistivity, fractography, optical microstructures, SEM microstructures, and EDS analysis were used to compare CSES solder joints with CSI solder joints. …”
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  7. 3607

    Plasma-polymerized fluorocarbon Ag–Cu nanocomposites: Nanostructure optimization for superior SERS sensitivity by Joonhyuk Lee, Sung Hyun Kim, Seok-Kyun Son, Sang-Jin Lee

    Published 2025-01-01
    “…We fabricated Ag–Cu nanocomposite PPFC (CAP) thin films by sputtering at different mid-range-frequency sputtering densities, resulting in variations in the optical absorption wavelengths and changes in the Ag/Cu ratio, as confirmed by an X-ray photoelectron spectroscopy analysis. …”
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  8. 3608

    Comparative Hypothesis Testing of Auroral Ionospheric Layer Causing Global Navigation Satellite System Scintillation by G. Blinstrubas, A. English, D. J. Stuart, D. L. Hampton, L. Lamarche, Y. Nishimura, S. Datta‐Barua

    Published 2025-01-01
    “…The second technique consists of using the ratio of the 630 (red) to the 428 nm (blue) intensity in optical all‐sky images (ASIs) to hypothesize the scattering layer with ASI. …”
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  9. 3609

    Relationship between Metabolic Syndrome and Ocular Microcirculation Shown by Laser Speckle Flowgraphy in a Hospital Setting Devoted to Sleep Apnea Syndrome Diagnostics by Tomoaki Shiba, Mao Takahashi, Tadashi Matsumoto, Yuichi Hori

    Published 2017-01-01
    “…Blowout score (BOS) and blowout time (BOT), which are the pulse waveform analysis parameters, and mean blur rate (MBR) using LSFG in the optic nerve head (ONH) and choroid were evaluated. …”
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  10. 3610

    The Size Effect and Microstructure Changes of Granite after Heat Treatment by Zhongping Guo, Jian Li, Yongqi Song, Chengqian He, Fuyu Zhang

    Published 2021-01-01
    “…At the same time, in order to understand the influence of high temperature on the mineral composition and microstructure of granite, XRD, optical microscope, and SEM were used to observe the mineral composition, microcracks, and fracture morphology of granite. …”
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  11. 3611

    Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure by Antoine Schneeberger, Olivier Mousis

    Published 2025-01-01
    “…Three-dimensional hydrodynamic simulations have shown that this disk was optically thick and significantly heated to very high temperatures owing to the intense radiation emitted by the hot, young planet. …”
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  12. 3612

    Real-Time G-Protein-Coupled Receptor Imaging to Understand and Quantify Receptor Dynamics by María S. Aymerich, J. López-Azcárate, J. Bonaventura, G. Navarro, D. Fernández-Suárez, V. Casadó, F. Mayor, C. Lluís, M. Valencia, J. Artieda, Rafael Franco

    Published 2011-01-01
    “…Understanding the trafficking of G-protein-coupled receptors (GPCRs) and their regulation by agonists and antagonists is fundamental to develop more effective drugs. Optical methods using fluorescent-tagged receptors and spinning disk confocal microscopy are useful tools to investigate membrane receptor dynamics in living cells. …”
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  13. 3613

    Floquet topological phase transitions in 2D Su–Schrieffer–Heeger model: interplay between time reversal symmetry breaking and dimerization by Adrian Pena, Bogdan Ostahie, Cristian Radu

    Published 2025-01-01
    “…Our model is suitable not only for condensed matter (materials), but also for cold gases trapped in optical lattices or topolectrical circuits.…”
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  14. 3614

    Strain Effects on the Band Gap and Diameter of CdSe Core and CdSe/ZnS Core/Shell Quantum Dots at Any Temperature by Md. Rezaul Karim, Mesut Balaban, Hilmi Ünlü

    Published 2019-01-01
    “…Structural characterizations were made by using X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) techniques. Optical characterizations were made by using UV-Vis absorption and fluorescence emission spectroscopies. …”
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  15. 3615

    Study on Fatigue Fracture Behavior of S32750 Duplex Stainless Steel at Different Solution Temperatures by Shun Bao, Han Feng, Zhigang Song, Jianguo He, Xiaohan Wu, Yang Gu

    Published 2024-12-01
    “…The microstructures, fracture surfaces, and slip systems of the tested steel were analyzed using optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. …”
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  16. 3616

    Luminescent Lanthanide Infinite Coordination Polymers for Ratiometric Sensing Applications by Ziqin Song, Yuanqiang Hao, Yunfei Long, Peisheng Zhang, Rongjin Zeng, Shu Chen, Wansong Chen

    Published 2025-01-01
    “…Ratiometric lanthanide coordination polymers (Ln-CPs) are advanced materials that combine the unique optical properties of lanthanide ions (e.g., Eu<sup>3+</sup>, Tb<sup>3+</sup>, Ce<sup>3+</sup>) with the structural flexibility and tunability of coordination polymers. …”
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  17. 3617

    Long-Term Followup Comparing Two Treatment Dosing Strategies of 125I Plaque Radiotherapy in the Management of Small/Medium Posterior Uveal Melanoma by Timothy G. Murray, Arnold M. Markoe, Aaron S. Gold, Fiona Ehlies, Ernesto Bermudez, Andrea Wildner, Azeema Latiff

    Published 2013-01-01
    “…Comparative analysis of the incidence rates of specific complications between the two groups demonstrates that group 2 had a significantly higher incidence of radiation retinopathy, radiation optic neuropathy, and/or visually significant cataract formation than group 1 (). …”
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  18. 3618

    Decreased Retinal Thickness in Type 1 Diabetic Children with Signs of Nonproliferative Diabetic Retinopathy by P. Ruiz-Ocaña, P. Espinoza Requena, A. Alonso-Ojembarrena, P. Alemany Márquez, S. Jiménez Carmona, A. M. Lechuga-Sancho

    Published 2018-01-01
    “…We performed retinographies and optical coherence tomography (OCT) (TOPCON 3D1000®) to PwT1DM followed at our center and healthy controls. …”
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  19. 3619

    Exploring the Variation of Urbach Energies Between Anatase and Rutile Phases of TiO2 Nanoparticles in Polymer-Based Hybrid Composites by Rasheed L. Jawad, Raghad S. Abbas

    Published 2025-01-01
    “…A UV–Vis spectrometer was used to determine the optical constants of the prepared samples, namely, the absorption coefficients and Urbach energies. …”
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  20. 3620

    Textural Analysis of Nuclear Mitotic Apparatus Antigen (NuMA) Spatial Distribution in Interphase Nuclei from Human Drug-Resistant CEM Lymphoblasts by Naima Rafki‐Beljebbar, Françoise Liautaud‐Roger, Dominique Ploton, Jean Dufer

    Published 1999-01-01
    “…., a more decondensed and coarse texture with increase of Energy and Long‐run sections and decrease of Contrast and Short‐run sections). Moreover, Optical Densities measurements indicate that MDR cells seem to contain less NuMA, a datum confirmed by immunoblotting of nuclear proteins. …”
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