Showing 4,221 - 4,240 results of 4,366 for search '"optics"', query time: 0.22s Refine Results
  1. 4221

    A Dichotomy in the 1–24 GHz Parsec-scale Radio Spectra of Radio-quiet Quasars by Sina Chen, Ari Laor, Ehud Behar, Ranieri D. Baldi, Joseph D. Gelfand, Amy E. Kimball

    Published 2025-01-01
    “…The radio core emission generally exhibits a flat spectrum at 1.5–5.0 GHz, which indicates a compact optically thick synchrotron source on a scale smaller than the broad-line region (BLR) radius R _BLR  ∼ 0.01–0.1 pc. …”
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  2. 4222

    Pirfenidone Alleviates Choroidal Neovascular Fibrosis through TGF-β/Smad Signaling Pathway by Chuang Gao, Xin Cao, Lili Huang, Yueqi Bao, Tao Li, Yue Di, Liucheng Wu, Yu Song

    Published 2021-01-01
    “…Mice were anesthetized by intraperitoneal injection of 4% pentobarbital (0.05 mg/g body weight). Optical Coherence Tomography (OCT), Fundus Fluorescein angiography (FFA), and hematoxylin-eosin (HE) were used to assess CNV formation. …”
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  3. 4223
  4. 4224

    Experimental analysis of micro-cavity influence on the effective solar absorptance of white sand curtain on porous obstructions of particle heating receivers by Rageh Saeed, Shaker Alaqel, Eldwin Djajadiwinata, Nader S. Saleh, Abdulelah Alswaiyd, Hany Al-Ansary, Syed Noman Danish, Abdelrahman El-Leathy, Zeyad Al-Suhaibani, Sheldon Jeter, Redhwan Almuzaiqer, Zeyad Almutairi

    Published 2025-02-01
    “…Achieving high solar absorptance offers substantial economic benefits by enabling the storage of thermal energy in low-cost, naturally abundant solid particles, such as silica sand, despite their inherently poor optical properties. This research studies the main aspects that influence the effective solar absorptance (ESA) of the direct porous OF-PHR. …”
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  5. 4225

    Microstructural and Mechanical Behaviors of Friction Stir Welded Dissimilar AA6082-AA7075 Joints by M. Vetrivel Sezhian, K. Giridharan, D. Peter Pushpanathan, G. Chakravarthi, B. Stalin, Alagar Karthick, P. Manoj Kumar, Murugesan Bharani

    Published 2021-01-01
    “…The response of the stir zone microstructure to processing parameters was evaluated using optical microscopy (OM) and fractographic analysis of a tensile specimen shown by scanning electron microscope (SEM). …”
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  6. 4226

    A Near-Ultraviolet Photodetector Based on the TaC: Cu/4 H Silicon Carbide Heterostructure by Salah Abdo, Khalil As’ham, Ambali Alade Odebowale, Sanjida Akter, Amer Abdulghani, Ibrahim A. M. Al Ani, Haroldo Hattori, Andrey E. Miroshnichenko

    Published 2025-01-01
    “…The superior performance of the device is ascribed to the enhanced electrical conductivity and optical absorption of the TaC: Cu layer on the 4H SiC substrate, particularly in the near-ultraviolet region. …”
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  7. 4227

    The Prevalence of Undiagnosed Age-Related Sight-Threatening Diseases in Self-Proclaimed Healthy Individuals by Sophie Lemmens, João Barbosa Breda, Karel Van Keer, Tine Jacobs, Ruben Van Landeghem, Patrick De Boever, Ingeborg Stalmans

    Published 2020-01-01
    “…Individuals aged 55 and older without ophthalmological complaints were asked to fill in a general medical questionnaire and underwent an ophthalmological examination, which included a biomicroscopic examination, intraocular pressure measurement, axial length measurement, and acquisition of fundus pictures and optical coherence tomography scans. Information regarding follow-up was collected in those who received the advice of referral to an ophthalmologist or the advice to have more frequent follow-up visits, based on their study evaluation. …”
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  8. 4228

    Pseudodominant Nanophthalmos in a Roma Family Caused by a Novel PRSS56 Variant by Lubica Dudakova, Pavlina Skalicka, Olga Ulmanová, Martin Hlozanek, Viktor Stranecky, Frantisek Malinka, Andrea L. Vincent, Petra Liskova

    Published 2020-01-01
    “…The nanophthalmos phenotype, characterized in detail in the younger individual, encompassed bilateral corneal steepening, retinal folds, buried optic head drusen, and restricted visual fields, but no signs of retinal dystrophy. …”
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  9. 4229

    Does total column ozone change during a solar eclipse? by G. H. Bernhard, G. T. Janson, S. Simpson, R. R. Cordero, R. R. Cordero, E. I. Sepúlveda Araya, J. Jorquera, J. A. Rayas, R. N. Lind

    Published 2025-01-01
    “…In addition to calculating TCO, we also present changes in the spectral irradiance and aerosol optical depth during eclipses and compare radiation levels observed during totality. …”
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  10. 4230

    Neuron-Specific Glycine Metabolism Links Transfer RNA Epitranscriptomic Regulation to Complex Behaviors by Jennifer Blaze, Viviana Dolores Evans, Jessica Abigail Feria Pliego, Petr Unichenko, Behnam Javidfar, Soeren Heissel, Hanan Alwaseem, Zachary Pennington, Denise Cai, Henrik Molina, Christian Henneberger, Schahram Akbarian

    Published 2025-03-01
    “…Changes in extracellular glycine levels were monitored by an optical glycine Förster resonance energy transfer (FRET) sensor in the hippocampus, and behavioral phenotyping included cognition, anxiety-like behavior, and behavioral despair. …”
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  11. 4231

    Changes in Tropospheric Nitrogen Dioxide Vertical Column Densities over Japan and Korea during the COVID-19 Using Pandora and MAX-DOAS by Yongjoo Choi, Yugo Kanaya, Hisahiro Takashima, Kihong Park, Haebum Lee, Jihyo Chong, Jae Hwan Kim, Jin-Soo Park

    Published 2023-03-01
    “…Abstract We investigated the impact of human activity during COVID-19 on the tropospheric nitrogen dioxide vertical column density (NO2 TropVCD) at three urban sites (Gwangju and Busan in Korea and Yokosuka in Japan) and one remote site (Cape Hedo in Japan) from Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) and Pandora. …”
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  12. 4232

    Monitoring changes of forest height in California by Samuel Favrichon, Jake Lee, Yan Yang, Yan Yang, Ricardo Dalagnol, Ricardo Dalagnol, Fabien Wagner, Le Bienfaiteur Sagang, Le Bienfaiteur Sagang, Sassan Saatchi, Sassan Saatchi, Sassan Saatchi

    Published 2025-01-01
    “…We train a deep neural network to predict forest height metrics at 10-m resolution from radar and optical satellite imagery. Model validation against independent airborne LiDAR data showed a R2≥0.65 for the top of canopy height outperforming existing GEDI-based height maps and with improved sensitivity for mapping tall trees (RH98 ≥ 50 m) across California. …”
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  13. 4233

    Characterization and optimization of cerium oxide nanoparticle-doped cellulose acetate films using the Box-Behnken Design by Lívia Viana Aguiar de Oliveira, Noemi Raquel Checca Huaman, Sergio Neves Monteiro, Ulisses Oliveira Costa, Letícia Vitorazi

    Published 2025-03-01
    “…The Box-Behnken Design (BBD) was applied to optimize the effects of CeO₂ concentration, PEG content, and drying temperature on mechanical, thermal, and optical properties. The films exhibited enhanced UV absorption, with CeO₂ increasing absorbance at 316 nm, while PEG influenced a nonlinear absorption response at 211 nm. …”
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  14. 4234

    New proposal for a multimodal imaging approach for the subclinical detection of hydroxychloroquine-induced retinal toxicity in patients with systemic lupus erythematosus by Ricard Cervera, Alfredo Adan, Gerard Espinosa, Jose Rios, Olga Araujo, José Hernández-Rodríguez, Laura Pelegrín, Ricardo P Casaroli-Marano, Halbert Hernández-Negrín, Marc Figueras-Roca, Vanesa Budi, Montse Morató

    Published 2024-05-01
    “…Each patient underwent a comprehensive ophthalmic evaluation, comprising structural tests (spectral-domain optical coherence tomography (SD-OCT), en face OCT, en face OCT angiography (OCTA), fundus autofluorescence (FAF)) and functional tests (automated perimetry for visual field (VF) testing, multifocal electroretinography (mfERG)). …”
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  15. 4235

    Multiple Sessions of Antimicrobial Photodynamic Therapy Improve Periodontal Outcomes in Patients with Down Syndrome: A 12-Month Randomized Clinical Trial by Rafael Ferreira, Sebastião Luiz Aguiar Greghi, Adriana Campos Passanezi Sant’Ana, Mariana Schutzer Ragghianti Zangrando, Carla Andreotti Damante

    Published 2025-01-01
    “…For aPDT, a red laser (658 nm; 0.1 W; 2229 J/cm<sup>2</sup>; 40 s sweeping with optical fiber) combined with methylene blue (MB) (100 µg/mL) was applied across repeated sessions (on days 3, 7, and 14). …”
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  16. 4236

    The clean analysis process of Mn2+ for industries: a comparative study on direct determination of high-concentration Mn2+ in solution using spectrophotometry by Yanli Xu, Fuyuan Xu, Yong Liu, Guangbin Zhu, Ying Chen, Ning Duan

    Published 2025-01-01
    “…The study found that the weak absorption characteristic of aqueous Mn²⁺ due to spin-forbidden transitions is advantageous for direct determination at high concentrations in its original valence state. By optimizing the optical path and wavelength, concentrations up to 50 g/L were detected, surpassing the PPS upper limit by 5000 times. …”
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  17. 4237

    Contribution of Aerosol Species to the 2019 Smoke Episodes over the East Coast of Peninsular Malaysia by Nur Nazmi Liyana Mohd Napi, Maggie Chel Gee Ooi, Mohd Talib Latif, Liew Juneng, Mohd Shahrul Mohd Nadzir, Andy Chan, Li Li, Samsuri Abdullah

    Published 2022-05-01
    “…The correlation analysis showed a significantly strong positive correlation (r) of black carbon (HP1: 0.91; HP2: 0.96), organic carbon (HP1: 0.90; HP2: 0.94), and sulphate (HP1: 0.80; HP2: 0.61) with the aerosol optical depth (AOD) levels during high pollution episodes. …”
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  18. 4238

    Is Amanita phalloides Nephrotoxicity due to Mitochondrial Toxicity? by Jules Weinhard, Justine Serre, Perrine Frère, Clovis Adam, Marie Camille Lafargue, David Buob, Cédric Rafat

    Published 2025-03-01
    “…Histopathological examination of the kidney displayed moderate tubular injury characterized by dilated tubular lumens and flattening of the tubular epithelium on optic microscopy. Electron microscopy showed mitochondrial changes including swelling and decreased number of cristae. …”
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  19. 4239

    Therapeutic Effect of Traditional Chinese Medicine on a Rat Model of Branch Retinal Vein Occlusion by Pan Long, Weiming Yan, Jianwen Liu, Manhong Li, Tao Chen, Zuoming Zhang, Jing An

    Published 2019-01-01
    “…The retinal layers were measured by optical coherence tomography (OCT). Full-field electroretinography (ffERG) was applied to evaluate the retinal function. …”
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  20. 4240

    Xiaoyao Pills Attenuate Inflammation and Nerve Injury Induced by Lipopolysaccharide in Hippocampal Neurons In Vitro by Yang Fang, Boyu Shi, Xiaobo Liu, Jie Luo, Zhili Rao, Rong Liu, Nan Zeng

    Published 2020-01-01
    “…Xiaoyao Pills significantly decreased the levels of IL-6, TNF-α, and IDO in cell supernatant and increased the expression of BDNF, NGF, TrkB, TrkA, CREB, p-CREB, p-CREB/CREB, and SYP as well as the average optical density of BrdU/NeuN double-labelled positive cells. …”
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