Showing 3,841 - 3,860 results of 4,366 for search '"optics"', query time: 0.06s Refine Results
  1. 3841

    Creation of Beta Crystal Structure in Random Polypropylene with the Help of Pimelic Acid-Based Nucleator: the Role of Nucleator Addition Method and the Presence of Isotactic Polypr... by H. Ghorbani, R. Bagheri

    Published 2024-12-01
    “…Crystal structure evaluation was done by differential scanning calorimetry and X-ray diffraction methods. A transmission optical microscope  was employed to examine the microstructure of the samples. …”
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    Article
  2. 3842

    Conductive polymers and derivatives as recognition element for electrochemical sensing of food and drug additives: A brief perspective by Hassan O. Shoyiga, Omolola E. Fayemi

    Published 2025-01-01
    “…Conducting polymers (CPs) are a distinct category of polymeric materials characterised by conjugated main chains that display adjustable electrical and optical properties. By regulating their doping states, these characteristics can be enhanced for many applications. …”
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  3. 3843

    External Validation of Deep Learning Models for Classifying Etiology of Retinal Hemorrhage Using Diverse Fundus Photography Datasets by Pooya Khosravi, Nolan A. Huck, Kourosh Shahraki, Elina Ghafari, Reza Azimi, So Young Kim, Eric Crouch, Xiaohui Xie, Donny W. Suh

    Published 2024-12-01
    “…A Grad-CAM analysis revealed that ResNet18 emphasized global vascular patterns, such as arcuate vessels, while FastVit_SA12 focused on clinically relevant areas, including the optic disk and hemorrhagic regions. Medical cases showed localized activations, whereas trauma-related images displayed diffuse patterns across the fundus. …”
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    Article
  4. 3844

    Assessment of Ocriplasmin Effects on the Vitreoretinal Compartment in Porcine and Human Model Systems by Bart Jonckx, Michael Porcu, Aurelie Candi, Isabelle Etienne, Philippe Barbeaux, Jean H. M. Feyen

    Published 2017-01-01
    “…To gain insight into vitreoretinal observations reported after ocriplasmin treatment, we have developed an in vivo porcine ocriplasmin-induced posterior vitreous detachment (PVD) model in which we investigated vitreoretinal tissues by optical coherence tomography, histology, and cytokine profiling. …”
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    Article
  5. 3845

    Challenges in Medicine: The Odyssey of a Patient with Isolated IgG4-Related Eosinophilic Angiocentric Fibrosis Presenting as a Locally Destructive Sinonasal Mass by Snigdha Nutalapati, Richard O’Neal, William O’Connor, Brett T. Comer, Gerhard C. Hildebrandt

    Published 2021-01-01
    “…Over this period, the mass eroded through the ethmoid cells along with nasal septal destruction leading to saddle nose deformity, extended superiorly through the cribriform plates to right frontal lobe, and compressed the optic nerve leading to visual loss. Although initial biopsy was negative, repeat biopsy was performed owing to high clinical suspicion due to all the classic histopathological findings compatible with the diagnosis of eosinophilic angiocentric fibrosis IgG4-related disease (EAF-IgG4RD). …”
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  6. 3846

    Microscopic Observation of Proliferative Membranes in Fibrocontractive Retinal Disorders by Rino Frisina, Francesco Tessarolo, Ivan Marchesoni, Federico Piccoli, Emiliana Bonomi, Patrizio Caciagli, Edoardo Midena, Giandomenico Nollo

    Published 2019-01-01
    “…Sixty-nine specimens from 64 eyes of 64 consecutive patients were collected at surgery and subjected to a multilevel analysis by means of optical and electron microscopy. Membrane samples were semiquantitatively evaluated for the amount and distribution of cell nuclei and pigment. …”
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    Article
  7. 3847

    Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications by Kazi Suraiya Islam, Md. Hasnain Mustak, Md. Khalid Hossain Shishir, Md. Minnatul Karim, Gazi Md. Arifuzzaman Khan

    Published 2025-04-01
    “…The UV–vis analysis revealed absorption peak at 338.0 nm with an optical band gap of 3.08 eV, confirming the synthesis of p-ZnO NPs. …”
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    Article
  8. 3848

    Advancements in photovoltaic efficiency: The role of fluorine-doped CZTS in homojunction solar cells by Milad Yousefizad, Zohreh Golshan Bafghi, Amirmohammad Shahriyari, Andia Javanmardi, Naser Hakimi Raad, Ashraf Ahmadi Shadmehri, Siavosh Samoodi, Negin Manavizadeh, Ali Moafi

    Published 2025-02-01
    “…The DFT calculations indicate that F atoms prefer Cu sites and maintain a direct band gap in CZTS, promoting n-type conductivity. Optical studies demonstrate that F-doping enhances conductivity, refractive index, and light absorption through the visible spectrum. …”
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    Article
  9. 3849

    Clinical Characteristics of Visual Dysfunction in Carbon Monoxide Poisoning Patients by Wei-Kang Bi, Jin-Lin Wang, Xu-Dong Zhou, Ze-Kun Li, Wen-Wen Jiang, Shao-Bin Zhang, Yong Zou, Ming-Jun Bi, Qin Li

    Published 2020-01-01
    “…The key pathological factors were keratopathy, retinal nerve cell damage, optic nerve damage, retinal vascular disease, macular disease, and occipital visual center damage. …”
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    Article
  10. 3850

    Choroidal Vascularity Index as a Biomarker for Visual Response to Antivascular Endothelial Growth Factor Treatment in Diabetic Macular Edema by Ningxin Dou, Shanshan Yu, Ching-Kit Tsui, Boyu Yang, Jianqiang Lin, Xi Lu, Yue Xu, Benjuan Wu, Jinfeng Zhao, Xiaoling Liang

    Published 2021-01-01
    “…Baseline systematic features and optical coherence tomography features, including the CVI, adjusted ellipsoid zone (EZ) reflectivity, subretinal fluid (SRF), and disorganization of the retinal inner layers (DRIL), were evaluated between the two groups. …”
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    Article
  11. 3851

    Identification of dominant species of submerged vegetation based on Sentinel-2 red-edge band: A case study of Lake Erhai, China by Xiaohan Wang, Yu Zhang, Yanhong Yu, Yunmei Li, Heng Lyu, Junda Li, Xiaolan Cai, Xianzhang Dong, Gaolun Wang, Jianzhong Li, Mengmeng Song, Lanlan Chen

    Published 2025-02-01
    “…Aquatic vegetation plays a crucial role as a primary producer and ecological regulator, serving as an indispensable purifier in inland lakes. However, weakened optical information caused by water absorption and reflection presents challenges in remote sensing identification and classification of submerged vegetation (SAV). …”
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    Article
  12. 3852

    A facile synthesis by spark plasma sintering of mobile lithium ions into oxynitride glass-ceramic matrix: Insight and perspective by Sharafat Ali, Abbas Saeed Hakeem, Hussain Alslman, Natalia Anna Wójcik

    Published 2025-01-01
    “…With increase in Li content, the crystallinity in the samples decreases. Optical and scanning electron microscopy (SEM) studies demonstrate alterations in microstructural features, notably an increase in the number of Li-rich phases. …”
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    Article
  13. 3853

    Fast Object Detection and Localization in Ultrawide Swath Rotating Scan Remote Sensing Images by Zhiming Deng, Tianyu Zhang, Cheng Wei, Xibin Cao

    Published 2025-01-01
    “…In the field of remote sensing, rotating scan optical satellites are an important innovation, offering the unique advantage of capturing extensive ground coverage areas with high precision. …”
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    Article
  14. 3854

    One Year Outcomes and Stability of a Novel Scleral Anchored Intraocular Lens by Edoardo Abed, Matteo Forlini, Edlira Bendo, Aurelio Imburgia, Alessandro Mularoni, Corrado Gizzi, Giuseppe Santino, Daniele Corazza, Giacomo Costa

    Published 2021-01-01
    “…Patients were evaluated preoperatively and at 1, 3, 6, and 12 months after surgery by best-corrected distance visual acuity (BCVA) assessment, intraocular pressure (IOP) measurement, corneal specular microscopy, and optical coherence tomography (OCT) of both the macula and anterior segment. …”
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    Article
  15. 3855

    Frequent Glacial Hazard Deformation Detection Based on POT-SBAS InSAR in the Sedongpu Basin in the Himalayan Region by Haoliang Li, Yinghui Yang, Xiujun Dong, Qiang Xu, Pengfei Li, Jingjing Zhao, Qiang Chen, Jyr-Ching Hu

    Published 2025-01-01
    “…The acquired temporal surface deformation and multiple optical remote sensing images were then jointly used to analyze the characteristics of the long-term glacier movement in the Sedongpu Basin. …”
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    Article
  16. 3856

    A New Sutureless Illuminated Macular Buckle Designed for Myopic Macular Hole Retinal Detachment by Ahmed M. Bedda, Ahmed M. Abdel Hadi, Mohamed Lolah, Muhammad S. Abd Al Shafy

    Published 2017-01-01
    “…The primary outcomes measured included aided visual acuity (BCVA) and optical coherence tomography (OCT) findings. The mean follow-up period was 6 months. …”
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    Article
  17. 3857

    Three-dimensional diffractive acoustic tomography by Luca Menozzi, Tri Vu, Aidan J. Canning, Harshal Rawtani, Carlos Taboada, Marie Elise Abi Antoun, Chenshuo Ma, Jesse Delia, Van Tu Nguyen, Soon-Woo Cho, Jianing Chen, Theresa Charity, Yirui Xu, Phuong Tran, Jun Xia, Gregory M. Palmer, Tuan Vo-Dinh, Liping Feng, Junjie Yao

    Published 2025-01-01
    “…Abstract Acoustically probing biological tissues with light or sound, photoacoustic and ultrasound imaging can provide anatomical, functional, and/or molecular information at depths far beyond the optical diffusion limit. However, most photoacoustic and ultrasound imaging systems rely on linear-array transducers with elevational focusing and are limited to two-dimensional imaging with anisotropic resolutions. …”
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    Article
  18. 3858

    Improving Rotational Doppler Velocimetry Accuracy and Spectral Characteristics of Vortex Beam in Maritime Atmospheric Turbulence by Hongyang Wang, Zijing Zhang, Chengshuai Cui, Xinran Lv, Hao Yun, Hao Liu, Yuan Zhao

    Published 2024-01-01
    “…This study focused on the compensation capacity of the Gerchberg–Saxton (GS) phase recovery algorithm, which demonstrates a notable enhancement in metrics such as the optical field purity, rotational velocity measurement accuracy, signal-to-maximum sideband ratio of the distorted vortex beams. …”
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    Article
  19. 3859

    UNCONTROLLED PHOTOMULTIPLIER CURRENT IN PHOTOEMISSION ANALYSIS by K. A. Viazava, K. N. Kasparov, O. G. Penyazkov

    Published 2016-09-01
    “…The constructive method is based on creating an electron-optical system of photoelectronic device, which would be a photoelectron energy analyzer. …”
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    Article
  20. 3860

    Predicting branch retinal vein occlusion development using multimodal deep learning and pre-onset fundus hemisection images by Eun Young Choi, Dongyoung Kim, Jinyeong Kim, Eunjin Kim, Hyunseo Lee, Jinyoung Yeo, Tae Keun Yoo, Min Kim

    Published 2025-01-01
    “…A U-net model segmented retinal optic discs and blood vessels (BVs), dividing them into upper and lower halves labeled for BRVO occurrence. …”
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    Article