Showing 4,101 - 4,120 results of 4,366 for search '"optics"', query time: 0.06s Refine Results
  1. 4101

    Characterization of two iron bullets from the royal ammunition factory of Eugi (Spain) by Zalakain I., Berlanga C., Alvarez L., Asa L., Labé P., Rivero P., Valencia J., Rodríguez R.

    Published 2018-01-01
    “…Several techniques such as microhardness, X-ray fluorescence (XRF), light (LM) and scanning electron microscopy (SEM), optical mission spectroscopy (OES) and energy dispersive X-ray spectroscopy (EDX) analysis were used in order to identify the manufacturing process of the two bullets. …”
    Get full text
    Article
  2. 4102

    Assessment of retinal pigment epithelium tears in eyes with submacular hemorrhage secondary to age-related macular degeneration by Tomoko Ueda-Consolvo, Syogo Takahashi, Toshihiko Oiwake, Tomoko Nakamura, Masaaki Ishida, Shuichiro Yanagisawa, Atsushi Hayashi

    Published 2025-01-01
    “…RPE tears were investigated using spectral-domain or swept-source optical coherence tomography images with raster scan, combined confocal scanning laser ophthalmoscope near-infrared images and color fundus photographs. …”
    Get full text
    Article
  3. 4103

    Mechanical Behavior of Ion-Exchanged Alkali Aluminosilicate Glass Ceramics by Bruno M. F. Nunes, André Dinis, Jorge C. Fernandes, Rui M. Almeida, Luís F. Santos

    Published 2024-12-01
    “…The glass ceramics were then subjected to an ion exchange treatment in a KNO<sub>3</sub> bath, in order to further enhance the mechanical properties, without hindering the optical transmittance. The combination of heat treatment and chemical treatment resulted in a cumulative hardness increase of ~25%, from 620 ± 10 HV, for the as-cast glass and from 773 ± 23 HV for the ion-exchanged glass ceramic. …”
    Get full text
    Article
  4. 4104

    Advancing Underwater Vision: A Survey of Deep Learning Models for Underwater Object Recognition and Tracking by Mahmoud Elmezain, Lyes Saad Saoud, Atif Sultan, Mohamed Heshmat, Lakmal Seneviratne, Irfan Hussain

    Published 2025-01-01
    “…For tracking tasks, transformer-based models like SiamFCA and FishTrack leverage hierarchical attention mechanisms and convolutional neural networks (CNNs) to achieve high accuracy and robustness in dynamic underwater environments. Beyond optical imaging, this review explores alternative modalities such as sonar, hyperspectral imaging, and event-based vision, which provide complementary data to enhance underwater vision systems. …”
    Get full text
    Article
  5. 4105

    Pulse Waveform Analysis of the Ocular Blood Flow Using Laser Speckle Flowgraphy before and after Glaucoma Treatment by Satoko Masai, Kyoko Ishida, Ayako Anraku, Tetsuro Takumi, Goji Tomita

    Published 2019-01-01
    “…This study evaluated the effect of glaucoma treatment on pulse waveforms for optic nerve head (ONH) microcirculation in patients with glaucoma. …”
    Get full text
    Article
  6. 4106

    Efficacy of a simple intravitreal perfluoropropane injection in treating unclosed idiopathic macular holes following vitrectomy by Zexia Dou, Jindong Han, Shaozhen Zhao

    Published 2025-02-01
    “…It included patients diagnosed with unclosed IMHs following primary PPV combined with internal limiting membrane peeling and air tamponade. Optical coherence tomography (OCT) performed 1 week after PPV revealed unclosed IMHs with the presence of the ‘cuff’ sign and intraretinal cysts. …”
    Get full text
    Article
  7. 4107

    Increased Choroidal Thickness in Keratoconus Patients: Perspectives in the Disease Pathophysiology by João Pinheiro-Costa, João Viana Pinto, Sara Perestrelo, João Nuno Beato, Luís Torrão, Elisete Brandão, Ângela Carneiro, Maria Dulce Madeira, Fernando Falcão-Reis

    Published 2019-01-01
    “…Patients with KC followed in Corneal Department of Centro Hospitalar São João, Porto, Portugal, were identified and consecutively included between December 2017 and February 2018. A spectral-domain optical coherence tomography (OCT) using depth enhanced imaging was performed, and choroidal thickness in the center of the fovea and at 500 μm intervals along a horizontal section was measured and compared. …”
    Get full text
    Article
  8. 4108

    The Relationship between the Structure and Thermal Properties of Bi2O3-ZnO-B2O3 Glass System by Sung-Hung Lan, Chin-Tung Lee, Yi-Sheng Lai, Chien-Chon Chen, Hsi-Wen Yang

    Published 2021-01-01
    “…Due to high-temperature melting, the bismuth-doped borate glasses have changed into dark/black from original transparent yellow and the light transmittance will decrease, so it is not used in optical applications. The thermal properties of glass are measured by a thermomechanical analyzer (TMA), and the glass structure is analyzed by FTIR and XPS. …”
    Get full text
    Article
  9. 4109

    Environmentally friendly green synthesis of reduced graphene oxide using Laurus nobilis, characterization and evaluation of in vitro anticancer activity by Yasemin Budama-Kilinc, Esra Arslan, Bahar Gok, Muge Sari Yilmaz

    Published 2025-01-01
    “…Graphene, due to its remarkable electrical, mechanical, thermal, and optical characteristics, has become a highly desirable material for scientific investigation. …”
    Get full text
    Article
  10. 4110

    Direct Photocoagulation Guided by Merged Retinal Images for the Treatment of Focal Diabetic Macular Edema by Yoshihiro Takamura, Takehiro Matsumura, Shogo Arimura, Makoto Gozawa, Masakazu Morioka, YutakaYamada, Masaru Inatani

    Published 2018-01-01
    “…To introduce a novel laser photocoagulation (PC) protocol named merged image-guided PC (MIG-PC), which included merging the images of the fundus, optical coherence tomography (OCT) map, and fluorescein angiography (FA). …”
    Get full text
    Article
  11. 4111

    The use of a benign fast-growing cyanobacterial species to control microcystin synthesis from Microcystis aeruginosa by Hakyung Lee, Vincent Xu, Jinjin Diao, Runyu Zhao, Moshan Chen, Tae Seok Moon, Haijun Liu, Kimberly M. Parker, Young-Shin Jun, Yinjie J. Tang

    Published 2024-12-01
    “…This study investigated the combined effects of nutrients and competition among cyanobacterial subpopulations on the synthesis of microcystin-LR.MethodsUnder varying nitrogen and phosphorus concentrations, cyanobacterial coculture, and the presence of algicidal DCMU, the growth was monitored by optical density analysis or microscopic counting, and the microcystin production was analyzed using high-performance liquid chromatography-UV. …”
    Get full text
    Article
  12. 4112

    A Microfluidic Biosensor for Quantitative Detection of <i>Salmonella</i> in Traditional Chinese Medicine by Yutong Wu, Yang Liu, Jinchen Ma, Shanxi Zhu, Xiaojun Zhao, Huawei Mou, Xuanqi Ke, Zhisheng Wu, Yifei Wang, Sheng Lin, Wuzhen Qi

    Published 2024-12-01
    “…In our study, a novel optical biosensor was developed for the rapid and sensitive detection of <i>Salmonella</i> in traditional Chinese medicine on a microfluidic chip. …”
    Get full text
    Article
  13. 4113

    Enhanced Photocatalytic Oxidative Coupling of Methane over Metal-Loaded TiO<sub>2</sub> Nanowires by Shuang Song, Jiongcan Xiang, Hui Kang, Fengming Yang

    Published 2025-01-01
    “…With metal loading, the electric and optical properties of TiO<sub>2</sub> NWs were adjusted, contributing to the improvement of the activity and selectivity of the OCM reaction. …”
    Get full text
    Article
  14. 4114

    Restoration of Foveal Bulge after Resolution of Diabetic Macular Edema with Coexisting Serous Retinal Detachment by Yijun Hu, Qiaowei Wu, Baoyi Liu, Manqing Huang, Qingsheng Peng, Pingting Zhong, Xiaomin Zeng, Yu Xiao, Cong Li, Ying Fang, Tao Li, Honghua Yu, Xiaohong Yang

    Published 2020-01-01
    “…To evaluate the impact of restoration of foveal bulge (FB) in optical coherence tomography (OCT) images on visual acuity after resolution of diabetic macular edema with coexisting serous retinal detachment (SRD-DME). …”
    Get full text
    Article
  15. 4115

    Gasoline Direct Injection Engine Emissions of OC and EC: Laboratory Comparisons with Port Fuel Injection Engine by Jie Zhang, John Liggio, Tak W. Chan, Lin Huang, Jeffrey R. Brook

    Published 2022-05-01
    “…Carbonaceous particles emitted from the vehicles were collected on quartz filters and analyzed using three different thermal optical protocols to assess the sensitivity of organic carbon (OC) and elemental carbon (EC) emission estimates to the methods, showing OC obtained by the IMPROVE and EC by the NIOSH protocol was the lowest. …”
    Get full text
    Article
  16. 4116

    Correlation of cytokine storm with ocular fundus abnormalities in critically ill patients with severe viral pneumonia by Yun Yu, Yun-jiao Zhao, Qi-hang Zhou, Xiao-yin Zhou, Yu-qing Lan, Hai-jun Gong

    Published 2025-02-01
    “…Conclusion: Fundus vascular abnormalities and optic disc edema are associated with cytokine levels in patients with severe viral pneumonia, with significant differences between survivors and deceased patients.…”
    Get full text
    Article
  17. 4117

    Kinetics of grain growth in Ti-2.7Al-5.7Fe-6Mo-6V alloy by Mutava T.D., Cornish L.A., Sigalas I.

    Published 2017-01-01
    “…The beta transus was determined by differential thermal analysis (DTA) and optical microscopy. The cast alloys were annealed at different temperatures under argon, up to 900oC, where they were in the solution-treated state, and the solution-treated alloys were aged between 400oC and 600oC. …”
    Get full text
    Article
  18. 4118

    Characteristics of beta parapapillary atrophy in primary angle-closure suspect by Qing Zhang, Ye Zhang, Xiaohua Pan, Hui Feng, Shuning Li, Zhi Li, Meijuan Zhang, Caixia Li, Fei Xiang, Qianqian Ji

    Published 2024-05-01
    “…Stereoscopic fundus and optical coherence tomography images were used to characterise β-PPA; the former was also used to measure the major β-PPA parameters. …”
    Get full text
    Article
  19. 4119

    Pearls on a String: Dark and Bright Galaxies on a Strikingly Straight and Narrow Filament by M. Arabsalmani, S. Roychowdhury, B. Schneider, V. Springel, E. Le Floc’h, F. Bournaud, A. Burkert, J.-C. Cuillandre, P.-A. Duc, E. Emsellem, D. Galárraga-Espinosa, E. Pian, F. Renaud, M. A. Zwaan

    Published 2025-01-01
    “…None of these H i sources has a confirmed optical counterpart. Their darkness together with their large H i 21 cm line widths indicates that they contain gas that might not yet be virialized. …”
    Get full text
    Article
  20. 4120

    Data mining and safety analysis of voriconazole in patients with a hematological malignant tumor based on the FAERS database: differences between children and adults by Hao Li, Hao Li, Manxue Jiang, Manxue Jiang, Xiaona Pan, Lingti Kong, Lingti Kong, Lingti Kong

    Published 2025-01-01
    “…The highest ROR signal intensities were found for “hallucinations, mixed” in children and “toxic optic neuropathy” in adults. The median time of onset of the ADE in children and adults was 11 and 8.5 days, respectively.ConclusionWe used four algorithms (ROR, PRR, BCPNN, MGPS) to mine the signals of voriconazole in patients with a hematological malignant tumor, and compared the differences between children and adults. …”
    Get full text
    Article