Suggested Topics within your search.
Showing 161 - 180 results of 1,564 for search '"coherer"', query time: 0.06s Refine Results
  1. 161

    Coherent Optics for Passive Optical Networks: Flexible Access, Rapid Burst Detection, and Simplified Structure by Guangying Yang, Yixiao Zhu, Ziheng Zhang, Lina Man, Xiatao Huang, Xingang Huang, Weisheng Hu

    Published 2025-01-01
    “…Compared to intensity modulation/direct detection (IM/DD), a recently proposed coherent PON incorporates a local oscillator laser at the receiver, enabling superior receiver sensitivity, spectrally efficient modulation, linear optical field recovery, and flexible channel selection. …”
    Get full text
    Article
  2. 162

    Significance of Hyperreflective Foci as an Optical Coherence Tomography Biomarker in Retinal Diseases: Characterization and Clinical Implications by Serena Fragiotta, Solmaz Abdolrahimzadeh, Rosa Dolz-Marco, Yoichi Sakurada, Orly Gal-Or, Gianluca Scuderi

    Published 2021-01-01
    “…Hyperreflective foci (HRF) is a term coined to depict hyperreflective dots or roundish lesions within retinal layers visualized through optical coherence tomography (OCT). Histopathological correlates of HRF are not univocal, spacing from migrating retinal pigment epithelium cells, lipid-laden macrophages, microglial cells, and extravasated proteinaceous or lipid material. …”
    Get full text
    Article
  3. 163

    Use of Fourier-Domain Optical Coherence Tomography to Evaluate Anterior Stromal Opacities in Donor Corneas by Matthew R. Bald, Christopher Stoeger, Joshua Galloway, Maolong Tang, Jeffrey Holiman, David Huang

    Published 2013-01-01
    “…To evaluate Fourier-domain optical coherence tomography (FD-OCT) as an adjunct to traditional slit lamp examination of donor corneas with suspected Anterior Stromal Opacities. …”
    Get full text
    Article
  4. 164
  5. 165

    The Relationship between Visual-Evoked Potential and Optic Coherence Tomography and Clinical Findings in Parkinson Patients by Zeynep Tuncer, Gamze Dereli Can, Hava Dönmez Keklikoğlu, Fatma Ayşen Eren, Fatma Yülek, Orhan Deniz

    Published 2023-01-01
    “…In Parkinson’s disease (PD), dopamine deficiency is present not only in the nigrostriatal pathway but also in the retinal and visual pathways. Optic coherence tomography (OCT) can be used as morphological evidence of visual influence from early nonmotor symptoms. …”
    Get full text
    Article
  6. 166

    A Frequency Domain Method for the Generation of Partially Coherent Normal Stationary Time Domain Signals by David O. Smallwood, Thomas L. Paez

    Published 1993-01-01
    “…A procedure for generating vectors of time domain signals that are partially coherent in a prescribed manner is described. The procedure starts with the spectral density matrix, [Gxx(f)] , that relates pairs of elements of the vector random process {X(t)},−∞<t<∞. …”
    Get full text
    Article
  7. 167
  8. 168

    Analysis in Choroidal Thickness in Patients with Graves’ Ophthalmopathy Using Spectral-Domain Optical Coherence Tomography by Nan Yu, Yadi Zhang, Lei Kang, Ying Gao, Junqing Zhang, Yuan Wu

    Published 2018-01-01
    “…The objective of the study is to observe changes in choroidal thickness (CT) in patients with Graves’ ophthalmopathy using spectral-domain optical coherence tomography (SD-OCT). Methods. The right eyes of 36 patients (27 females and 9 males) with Graves’ ophthalmopathy (GO) and those of 36 age-, gender-, and diopter-level-matched healthy participants were evaluated. …”
    Get full text
    Article
  9. 169

    Ocular Biometric and Optical Coherence Tomography Parameters in Former Preterm Children: A Cohort Study by Marzieh Najjaran, Siamak Zarei-Ghanavati, Hadi Ostadimoghaddam, Abbasali Yekta, Nasser Shoeibi, Armin Hemmati, Mojtaba Abrishami, Saeed Akhlaghi, Mohammed Ziaei

    Published 2024-01-01
    “…To compare biometric and optical coherence tomography parameters as well as refractive status in preterm children aged 4–8 years with or without retinopathy of prematurity (ROP), and evaluate their correlations with age and gender-matched full-term children. …”
    Get full text
    Article
  10. 170
  11. 171

    Optical Coherence Tomography-Guided Transepithelial Phototherapeutic Keratectomy for Central Corneal Opacity in the Pediatric Population by Sloan W. Rush, Ryan B. Rush

    Published 2018-01-01
    “…To report the outcomes of optical coherence tomography- (OCT-) guided transepithelial phototherapeutic keratectomy (PTK) for central corneal opacity in the pediatric population. …”
    Get full text
    Article
  12. 172
  13. 173
  14. 174

    Influence of Disc Size on the Diagnostic Accuracy of Cirrus Spectral-Domain Optical Coherence Tomography in Glaucoma by Shino Sato, Kaori Ukegawa, Eri Nitta, Kazuyuki Hirooka

    Published 2018-01-01
    “…To examine the influence of optic disc size on the diagnostic accuracy of optic nerve head (ONH) parameters determined by Cirrus spectral-domain optical coherence tomography (Cirrus HD-OCT). Methods. A total of 51 eyes of 51 normal participants and 71 eyes of 71 glaucoma patients were examined. …”
    Get full text
    Article
  15. 175

    Investigation of Retinal Microcirculation in Diabetic Patients Using Adaptive Optics Ophthalmoscopy and Optical Coherence Angiography by Florian Baltă, Irina-Elena Cristescu, Andrada-Elena Mirescu, George Baltă, Mihail Zemba, Ioana Teodora Tofolean

    Published 2022-01-01
    “…Both adaptive optics ophthalmoscopy and optical coherence ophthalmoscopy angiography are providing useful information about the retinal microvasculature from early onset of diabetic disease, having a promising diagnostic and prognostic role in the future.…”
    Get full text
    Article
  16. 176

    DOA Estimation of Two-Dimensional Coherently Distributed Sources Based on Spatial Smoothing of Uniform Rectangular Arrays by Tao Wu, Yiwen Li, Xiaofeng Zhang, Yijie Huang, Qingyue Gu, Chaoqi Fu

    Published 2019-01-01
    “…Aiming at the direction-of-arrival (DOA) estimation of two-dimensional (2D) coherently distributed (CD) sources which are coherent with each other, we explore the propagator method based on spatial smoothing of a uniform rectangular array (URA). …”
    Get full text
    Article
  17. 177

    Cooperative twinning behavior leads to superior mechanical properties in a coherently precipitated high-entropy alloy by Shuai Yuan, Xinghao Du, Dezheng liu, Chenxi Yuan, Zeyu Xing, Jinyu Zhang, Hechuan Ma, Shijun Zhao, Wanpeng Li, Baolin Wu, Jun Sun

    Published 2025-01-01
    “…The mechanical properties of the coherently precipitated high-entropy alloys can be further enhanced by enhancing the strain hardening behavior through deformation twins. …”
    Get full text
    Article
  18. 178

    Comparison of Anterior Ocular Biometric Measurements Using Swept-Source and Time-Domain Optical Coherence Tomography by Sisi Chen, Rongrong Gao, Colm McAlinden, Junming Ye, Yiran Wang, Min Chen, Jinhai Huang, Yong Sun, A-Yong Yu

    Published 2020-01-01
    “…To compare central corneal thickness (CCT), aqueous depth (AQD), and anterior chamber depth (ACD) measurements using the swept-source (CASIA SS-1000, Tomey, Japan) and time-domain (Visante, Carl Zeiss Meditec, USA) anterior segment optical coherence tomographers (OCT) in normal eyes. Methods. …”
    Get full text
    Article
  19. 179

    Optical Coherence Tomography Analysis of Attenuated Plaques Detected by Intravascular Ultrasound in Patients with Acute Coronary Syndromes by Takashi Kubo, Yoshiki Matsuo, Yasushi Ino, Takashi Tanimoto, Kohei Ishibashi, Kenichi Komukai, Hironori Kitabata, Atsushi Tanaka, Keizo Kimura, Toshio Imanishi, Takashi Akasaka

    Published 2011-01-01
    “…Methods. We used optical coherence tomography (OCT) in 104 patients with unstable angina to compare lesion characteristics between IVUS-detected attenuated plaque and nonattenuated plaque. …”
    Get full text
    Article
  20. 180