Search alternatives:
optical » optimal (Expand Search)
Showing 361 - 380 results of 3,725 for search 'optical different methods', query time: 0.18s Refine Results
  1. 361

    Optical Coherence Tomography for Diagnosis and Treatment of Corneal Diseases by N. V. Fisenko, G. A. Osipyan

    Published 2021-10-01
    “…Over the last several years, the development of OCT has increased the resolution of images by different ways of optical filtering. The usage of tunable swept laser instead of superluminescent diode in modern Swept-Source OCT (SS-OCT) provides the sufficient quality of image. …”
    Get full text
    Article
  2. 362

    Bio-optical variability of particulate matter in the Southern Ocean by Juan Li, Juan Li, David Antoine, David Antoine, Yannick Huot

    Published 2024-10-01
    “…This makes the particulate bio-optical properties there remarkably different from typical oceanic case 1 water. …”
    Get full text
    Article
  3. 363

    Optical humidity sensor based on G/GO nanosheets by Nafiseh Tobeiha, Nafiseh Memarian, Fatemeh Ostovari

    Published 2025-07-01
    “…The physical characteristics of these nanosheets were investigated using essential analysis. Then the optical-humidity sensor was made based on G/GO. This study explored the effect of different humidity percentages based on G/GO nanosheets at room temperature and the impact of various laser wavelengths on the humidity-sensing capabilities of G/GO nanosheets. …”
    Get full text
    Article
  4. 364

    Electrophysiological markers of preclinical diagnosis of glaucomatous optic neuropathy by M. O. Kirillova, M. V. Zueva, I. V. Tsapenko, A. N. Zhuravleva

    Published 2021-03-01
    “…Purpose: to evaluate the changes in electrophysiological indicators reflecting various aspects of the function of retinal ganglion cells (RGC) and their axons in the early diagnosis of glaucomatous optic neuropathy (GON).Material and methods. Two clinical groups, (1) 35 patients (60 eyes) aged 49 to 70 with suspected glaucoma and (2) 16 patients (30 eyes) aged 43–68 with initial primary open-angle glaucoma (POAG), and a comparison group of 38 relatively healthy subjects (45 eyes) aged 42–70 were tested for pattern-reversed visual evoked potentials (PVEP), transient and stationary pattern-ERGs (PERG) according to ISCEV, and photopic negative response (PhNR).Results. …”
    Get full text
    Article
  5. 365

    Industrial optical sorting for marine plastic litter management by A. Mendoza, G. Kortaberria, D. Carrero, A. Latorre, O.C. Basurko, C. Peña-Rodríguez

    Published 2024-12-01
    “…Considering the sorting methods employed in MBT plants, optical sorting tests were performed with marine PET litter and compared with those for post-consumer municipal PET waste, in order to assess whether the current technology implemented in these plants would allow their automatic sorting. …”
    Get full text
    Article
  6. 366

    Thermal Simulation and Experimental Study of QSFP+ Optical Modules by MAO Jiandong, XIAO Guohua, ZHENG Zijun

    Published 2025-02-01
    “…【Methods】The article adopts Flotherm simulation analysis to establish the numerical wind tunnel model of the optical module. …”
    Get full text
    Article
  7. 367

    Optical Strategy Utilizing Contrast Modulation to Slow Myopia by James S. Wolffsohn, MBA, PhD, Kate L. Gifford, BAppSc (Optom), PhD

    Published 2025-07-01
    “…A new method to slow myopia progression utilizes Diffusion Optics Technology (DOT) spectacle lenses. …”
    Get full text
    Article
  8. 368
  9. 369

    Effect of bath temperature on physical properties of thin films CuO using the SILAR method: Photocatalytic properties and numerical investigation by Latifa Znaidi, Hafsa Diyagh, Ismail Benaicha, Nabil Bouri, Lahoucine El Gana, Haytham El Farri, Kawtar Oukacha, Mounir Fahoume, khalid Nouneh

    Published 2025-12-01
    “…The effects of varying cationic solution temperatures on the structural, optical, and photocatalytic properties of the CuO thin films were investigated. …”
    Get full text
    Article
  10. 370

    Comparison of Optical versus Ultrasonic Biometry in Keratoconic Eyes by Yasin Çınar, Abdullah Kürşat Cingü, Muhammed Şahin, Alparslan Şahin, Harun Yüksel, Fatih Mehmet Türkcü, Tuba Çınar, İhsan Çaça

    Published 2013-01-01
    “…To compare the measurements of optical versus ultrasonic biometry devices in keratoconic eyes. …”
    Get full text
    Article
  11. 371

    Modal Gain and Loss in Three-Layer Optical Waveguides by Nikhil Polley, Tso-Min Chou, Weida Zhang, Ethan Chou, Jerome K. Butler, Gary A. Evans

    Published 2025-01-01
    “…The derived analytical formulas showed excellent agreement with the results obtained from an accurate numerical approach for the gain and modal gain confinement factors for waveguides with small, medium, and large index differences. The formulae derived in this study can be useful for periodic optical waveguides, semiconductor lasers, optical amplifiers, distributed reflector lasers, optical waveguide isolators, and silicon photonic waveguides. …”
    Get full text
    Article
  12. 372

    Ultrasonography of Optic Nerve Sheath Diameter in Healthy Volunteers by Ariel Sosa Remón, Wilfredo Boch Rodríguez, Dasha María García Arias, Carmen Esther Remón Chávez, Ana Esperanza Jerez Álvarez, Arian Jesús Cuba Naranjo

    Published 2023-12-01
    “…In the simple linear regression analysis, only sex was associated with the value of the diameter of the optic nerve sheath (p= 0.000).<br /> <strong>Conclusions:</strong> in a population of healthy volunteers, the value of the diameter of the optic nerve sheath was similar to other descriptions, with differences between sex, which suggests taking this variable into consideration when making the measurement.…”
    Get full text
    Article
  13. 373

    Electrophysiological markers of advanced stages of glaucomatous optic neuropathy by V. I. Kotelin, M. V. Zueva, I. V. Tsapenko, S. Yu. Petrov, A. N. Zhuravleva

    Published 2021-09-01
    “…Purpose: to determine the changes in electrophysiological parameters reflecting specific dysfunctions of retinal ganglion cells (RGCs) at advanced stages of glaucomatous optic neuropathy (GON).Material and methods. The study involved 35 patients (55 eyes) aged 51–76 (63.1 ± 7.7 years) with primary open-angle glaucoma (POAG), divided into two subgroups depending on POAG stages: developed (24 patients, 27 eyes) and advanced stages (24 patients, 28 eyes). …”
    Get full text
    Article
  14. 374

    Gut microbiota regulates optic nerve fiber myelination by Giulia Ronchi, Davide Pellegrino, Marwa El Soury, Olga Amato, Francesco Gaia, Sajjad Farzin, Raffaele Nuzzi, Marijana Basic, Silvia Bolsega, Stefano Geuna, Matilde Cescon, Kirsten Haastert-Talini, Kirsten Haastert-Talini, Giovanna Gambarotta

    Published 2025-02-01
    “…However, no data are available on the possible effect of the gut microbiota on the optic nerve fiber maturation and myelin development.MethodsWe investigated the impact of gut microbiota on the optic nerves collected from neonatal and young adult germ-free (GF), gnotobiotic (stably colonized with 12 bacteria strains, OMM12) and control (colonized with a complex gut microbiota, CGM) mice, by performing stereological and morphoquantitative analyses with transmission electron microscopy and gene expression analysis by quantitative real-time PCR.ResultsYoung adult GF and OMM12 optic nerve axons are smaller and hypermyelinated compared to CGM ones, while no such differences were detected in neonatal optic nerves. …”
    Get full text
    Article
  15. 375
  16. 376

    Choroidopathy in patients with systemic lupus erythematosus using enhanced depth imaging spectral domain optical coherence tomography and optical coherence tomography angiography by Emine Gökçen Bayuk, Sibel Doğuizi, Abdulsamet Erden, Özlem Karakaş, Pınar Çakar Özdal

    Published 2025-06-01
    “…AIM: To evaluate the choroidopathy in patients with systemic lupus erythematosus (SLE) using enhanced depth imaging spectral domain optical coherence tomography (EDI SD-OCT) and optical coherence tomography angiography (OCTA). …”
    Get full text
    Article
  17. 377

    Macular thickness and vascular density assessment using optical coherence tomography and optical coherence tomography angiography imaging in iron ore mine personnel by Navid Faraji, Seyyed Pouria Tafti, Niloofar Khoshroo, Alireza Khoshrou, Elham Bakhtiari, Saeid Eslami, Nasser Shoeibi, Mohammad Reza Ansari Astaneh, Seyedeh Maryam Hosseini, Majid Abrishami, Hamid Reza Heidarzadeh, Parnian Arjmand, Mojtaba Abrishami

    Published 2025-05-01
    “…Abstract Background To assess macular anatomical and vascular parameters in individuals working in iron ore mines using Optical Coherence Tomography (OCT) and Optical Coherence Tomography Angiography (OCTA) imaging to explore potential correlations between this occupational exposure and retinal changes. …”
    Get full text
    Article
  18. 378

    The 7-step “P” technique: a novel manual push method for high-quality OCT imaging in severe coronary stenosis by Jincheng Guo, Saiying He, Jia Zhou, Hao Liu, Zixuan Li, Zijing Liu, Senhu Wang, Haotian Wang

    Published 2025-07-01
    “…BackgroundAchieving optimal optical coherence tomography (OCT) imaging in patients with severe coronary stenosis is challenging because of the catheter-induced restriction of distal contrast flushing within the lesion.AimsTo evaluate the effectiveness of manual contrast injection followed by OCT catheter advancement in improving image clarity in patients with severe coronary stenosis.MethodsThis single-centre observational study included 60 patients with acute coronary syndrome who demonstrated antegrade thrombolysis in myocardial infarction (TIMI) flow ≥2 on coronary angiography before the OCT catheter was passed through the severe coronary lesions. …”
    Get full text
    Article
  19. 379

    Optical Enhancement of Exoskeleton-Based Estimation of Glenohumeral Angles by Camilo Cortés, Luis Unzueta, Ana de los Reyes-Guzmán, Oscar E. Ruiz, Julián Flórez

    Published 2016-01-01
    “…Moreover, the exoskeleton posture does not accurately reflect limb posture, as their kinematic models differ. To address the said limitations in posture estimation, we propose installing the cameras of an optical marker-based MOCAP in the rehabilitation exoskeleton. …”
    Get full text
    Article
  20. 380

    Numerical Modeling of the Fundamental Characteristics of ZBLAN Photonic Crystal Fiber for Communication in 2&#x2013;3 <inline-formula><tex-math notation="LaTeX">$\mu\text{m}$</tex-... by D. C. Tee, N. Tamchek, C. H. Raymond Ooi

    Published 2016-01-01
    “…Two different structural design ZBLAN PCFs with nonuniform air-hole size were designed with zero dispersion wavelength shifted to 2.5 <inline-formula> <tex-math notation="LaTeX">$\mu\text{m}$</tex-math></inline-formula>. …”
    Get full text
    Article