Showing 4,081 - 4,100 results of 4,366 for search '"optics"', query time: 0.08s Refine Results
  1. 4081

    Correlation between Imaging Morphological Findings and Laboratory Biomarkers in Patients with Diabetic Macular Edema by Eleni Dimitriou, Theodoros N. Sergentanis, Vaia Lambadiari, George Theodossiadis, Panagiotis Theodossiadis, Irini Chatziralli

    Published 2021-01-01
    “…Participants in this cross-sectional study were 36 consecutive patients (36 eyes) with treatment-naïve DME, who underwent spectral domain-optical coherence tomography (SD-OCT), fundus photography, and fundus fluorescein angiography (FFA). …”
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  2. 4082

    Perioperative airway management techniques and complications in patients with temporomandibular joint ankylosis: Experience from a tertiary care teaching institute by Anjan Trikha, Ajoy Roychoudhury, Devalina Goswami, Souvik Maitra, Ongkila Bhutia, Dalim Kumar Baidya

    Published 2025-01-01
    “…All patients with OSA had retrognathia. Fiber-optic bronchoscopy (FOB) guided intubation was performed in 362 (97.3%) patients. …”
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    Article
  3. 4083

    Quality Assurance System Using Statistical Process Control: An Implementation for Image Cytometry by David Chiu, Martial Guillaud, Dennis Cox, Michele Follen, Calum MacAulay

    Published 2004-01-01
    “…Aims: Optical technologies have shown some promise for improving the care of cervical neoplasia. …”
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    Article
  4. 4084

    Normative Values of Peripapillary Retinal Nerve Fiber Layer Thickness in a Middle Eastern Population by Mouna M. Al-Sa’ad, Amjad T. Shatarat, Justin Z. Amarin, Darwish H. Badran

    Published 2018-01-01
    “…Measurements had been recorded using Fourier-domain optical coherence tomography. Multivariable regression models were developed to generate predicted normative values with adjustments to candidate confounders. …”
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  5. 4085

    Photonics-based modular multistate digital coherent system by I. V. Unchenko, A. A. Emelyanov

    Published 2022-07-01
    “…Functional diagrams of modern digital receiver-shapers, as well as modules for amplifying radio frequency signals and converting radio frequency signals into an optical signal are presented along with a radio photonic synchronization network for generating clock signals. …”
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    Article
  6. 4086

    In vitro characterization the antioxidant and antibacterial properties of hemp (Cannabis sativa spp.) varieties cultivated in Northern Alabama by Aaron Dudley, Lamin S. Kassama, Armitra Jackson-Davis, Ernst Cebert, Xianyan Kuang

    Published 2025-01-01
    “…Antibacterial activity against cocktails of enteric pathogens, including Listeria monocytogenese, E. coli O157:H7, and Salmonella enterica was evaluated for optical density using a BioScreen-C microtiter. Also, the disc diffusion extraction yield was evaluated to determine the best extraction solvent. …”
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    Article
  7. 4087

    Eales’ Disease in Inuit: A Short Report and Clinical Update by Forshaw TRJ, Moldow B

    Published 2025-01-01
    “…There was left epiretinal membrane with retinal thickening on macular optical coherence tomography.Results: Based on the patient’s clinical findings and history of tuberculosis infection, a diagnosis of Eales’ disease was made. …”
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  8. 4088

    The “Triangle” Sign: A Novel Ultrasound Marker for Diagnosing Total Choroidal Detachment and Total Suprachoroidal Hemorrhage by Bhatt VD, Bhatt DC, Bhatt KD, Dabir S, Berendschot TTJM, Erckens RJ, Webers CAB

    Published 2025-01-01
    “…The study examined the presence of the “Triangle” sign (a hypoechoic/anechoic triangular shape of vitreous noted anterior to the optic disc) in total CD & SCH, categorized cases by subtype and etiology, and its role in differentiating from RD and VH.Results: Thirty-six eyes with a total CD and SCH were analyzed. …”
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    Article
  9. 4089

    Study of the Instantaneous Water Level Measurement Method on Unsteady Flow Based on Single Camera and Fixed Scale Compensation in the Tunnel Model by Weihua Ding, Hu Li, Fan Yang, Bin Hou, Haibin Xue, Feihu Wang, Zongxiao Zhang, Xinhong Wang

    Published 2023-01-01
    “…However, the measurement accuracy of the ultrasonic method is affected greatly because of the complex state of the water surface when water level changes rapidly. Using an optical method, multicamera synchronous measurement is difficult to control, and the cost is high. …”
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  10. 4090

    INFLUENCE OF LASER BEAM PROFILE ON LIGHT SCATTERING BY HUMAN SKIN DURING PHOTOMETRY BY ELLIPSOIDAL REFLECTORS by M. A. Bezuglyi, N. V. Bezuglaya, S. Kostuk

    Published 2018-03-01
    “…The correct accounting of laser emitter parameters for improvement of diagnostic authenticity of methods of optical biomedical diagnostic is important problem for applied biophotonic tasks. …”
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    Article
  11. 4091

    DETERMINATION OF HEAVY METALS AND ENVIRONMENTAL HEALTH STATUS OF AGRO SOILS IN IKOT ABASI, NIGER DELTA, NIGERIA by Usoro M. Etesin, Iniobong J. Ogbonna

    Published 2023-08-01
    “…The soil samples were air-dried and subjected to heavy metal determination (iron, Fe; cadmium, Cd; lead, Pb; zinc, Zn; copper, Cu; vanadium, V; nickel , Ni; chromium, Cr ; mercury, Hg ) by inductively coupled plasma– optical emission spectrometer (AGILENT 720 ICP-OES). …”
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  12. 4092

    Valorization of Food Waste to Produce Eco-Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles by Georgii Vasyliev, Victoria Vorobyova

    Published 2020-01-01
    “…The antimicrobial activity of AgNPs was tested against Escherichia coli using the agar diffusion method and optical density.…”
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  13. 4093

    Identification of Saharan-Dust Intrusions over Sofia, Bulgaria, Using Near-Ground PM10 and PM2.5 Mass Concentration Measurements by Tsvetina Evgenieva, Elena Vakareeva, Ljuan Gurdev, Tanja Dreischuh

    Published 2024-03-01
    “…In the present work, results were analyzed of: concurrent measurements of near-ground aerosol PM10 and PM2.5 mass concentrations and the aerosol’s optical and microphysical characteristics as obtained by an AERONET Cimel CE318–TS9 sun/sky/lunar photometer, the MONARCH Saharan-dust forecasting model and the HYSPLIT air-mass back-trajectory-recovering model. …”
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  14. 4094

    A review of the application of CIELAB colour systems for the development of gold and silver nano-enabled colorimetric assays for the detection of chromium by Sindisiwe Fortunate Shange, Phumlane Selby Mdluli, Nirmala Deenadayalu

    Published 2025-01-01
    “…Due to their fundamental optical characteristics, well-spaced colloidal solutions of gold nanoparticles and silver nanoparticles exhibit higher extinction coefficients and a distinct colour in the visible portion of the spectrum than aggregated samples. …”
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  15. 4095

    Rapid Identification of Potassium Nutrition Stress in Rice Based on Machine Vision and Object-Oriented Segmentation by Lisu Chen, Shihan Huang, Yuanyuan Sun, Enyan Zhu, Ke Wang

    Published 2019-01-01
    “…In this research study, two years of hydroponic experiments on rice (providing 5 levels of potassium nutrition from extremely short to normal) were carried out and the leaf images were acquired by optical scanning at four growth periods. To diagnose the potassium nutrition content, the special symptoms including the yellowish brown leaf margin and the necrotic spots were segmented and quantized by the object-oriented method from leaf images, and the 6 further spectral characteristics of leaf were extracted by the image color analyzing function of MATLAB software. …”
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  16. 4096
  17. 4097

    CALPHAD-aided synthesis and characterization of an Al–Co–Cr–Fe–Ni–W high-entropy alloy prepared by arc melting and spark plasma sintering by L. Fenocchio, A. Saviot, S. Gambaro, S. Le Gallet, F. Valenza, M.R. Ardigo-Besnard, G. Cacciamani

    Published 2025-01-01
    “…Samples were characterized by low optical microscopy (LOM), scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), and microhardness measurements. …”
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  18. 4098

    Investigating the Electron-capture Supernova Candidate AT 2019abn with JWST Spectroscopy by Sam Rose, Ryan M. Lau, Jacob E. Jencson, Mansi M. Kasliwal, Kishalay De, Michael E. Ressler, Ori D. Fox, Matthew J. Hankins

    Published 2025-01-01
    “…Similar to the prototypical examples of this class of objects, NGC 300 2008-OT and SN 2008S, AT 2019abn has an extremely red and dusty progenitor detected only in pre-explosion Spitzer/IRAC imaging at 3.6 and 4.5 μ m and not in deep optical or near-infrared Hubble Space Telescope images. …”
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  19. 4099

    Detectability of Emission from Exoplanet Outflows Calculated by pyTPCI, a New 1D Radiation-hydrodynamic Code by Riley Rosener, Michael Zhang, Jacob L. Bean

    Published 2025-01-01
    “…H α and Mg i 457 nm are moderately strong for some planets at some metallicities, but they are almost always optically thin, so some of their emission may not be from the outflow. …”
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  20. 4100

    Photometric Selection of Type 1 Quasars in the XMM-LSS Field with Machine Learning and the Disk–Corona Connection by Jian Huang, Bin Luo, W. N. Brandt, Ying Chen, Qingling Ni, Yongquan Xue, Zijian Zhang

    Published 2025-01-01
    “…The relation between the optical-to-X-ray power-law slope parameter ( α _OX ) and the 2500 Å monochromatic luminosity ( L _2500Å ) for this subsample is ${\alpha }_{{\rm{OX}}}=(-0.156\pm 0.007)\,{\rm{log}}\,{L}_{2500\,\mathring{\rm A} }+(3.175\pm 0.211)$ with a dispersion of 0.159. …”
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