Showing 3,081 - 3,100 results of 4,366 for search '"optics"', query time: 0.05s Refine Results
  1. 3081

    Analysis of Hybrid Buffering and Retransmission in OBS Networks by D. Veera Vanitha, M. Sabrigiriraj

    Published 2015-01-01
    “…Burst contention is a major problem in the Optical Burst Switching (OBS) networks. Due to inadequate contention resolution techniques, the burst loss is prominent in OBS. …”
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  2. 3082

    Design and optimization of high-contrast gratings for multispectral VCSEL-SOI laser sources by I.S. Shashkin, M.I. Kondratov, A.E. Grishin, K.E. Pevchikh, S.O. Slipchenko, N.A. Pikhtin

    Published 2024-08-01
    “…A simulation model for spectral characteristics calculation is proposed, which includes two heterogeneously integrated parts of the VCSEL: 1) the lower output mirror based on a HCG grating in the silicon layer of the SOI surrounded by air cavities to enhance the contrast of the HCG; 2) the semiconductor VCSEL structure with an air aperture for current and optical confinement. Comparative analysis results of the spectral characteristics of VCSEL-SOI structures for zeroth, first, and second-order modes, which can be excited in the air aperture of the VCSEL, are presented. …”
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  3. 3083

    Amorphization dependent recrystallisation of Sb2Te3 by Nur Qalishah Adanan, Simon Wredh, Joel K W Yang, Robert E Simpson

    Published 2025-01-01
    “…This effect is important because it provides a means to switch PCM devices at higher rates through a catalyst-like effect. The optical properties of Sb _2 Te _3 can be gradually tuned by the level of crystallographic disorder. …”
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  4. 3084

    Dengue Fever-Associated Maculopathy and Panuveitis in Australia by K. G.-J. Ooi, H. Inglis, N. Paramanathan, J. A. Downie, M. P. Hennessy

    Published 2016-01-01
    “…Automated perimetry revealed bilateral paracentral scotomas while optical coherence tomography demonstrated the maculopathies to be of the diffuse retinal thickening type in the right eye and acute macular neuroretinopathy (AMN) type in the left eye. …”
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  5. 3085

    Ultrafast emergence of ferromagnetism in antiferromagnetic FeRh in high magnetic fields by I. A. Dolgikh, T. G. H. Blank, A. G. Buzdakov, G. Li, K. H. Prabhakara, S. K. K. Patel, R. Medapalli, E. E. Fullerton, O. V. Koplak, J. H. Mentink, K. A. Zvezdin, A. K. Zvezdin, P. C. M. Christianen, A. V. Kimel

    Published 2025-02-01
    “…Aiming to reveal the ultrafast kinetics of this transition, we studied magnetization dynamics with the help of the magneto-optical Kerr effect in a broad range of temperatures (from 4 K to 400 K) and magnetic fields (up to 25 T). …”
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  6. 3086

    SPACIER: on-demand polymer design with fully automated all-atom classical molecular dynamics integrated into machine learning pipelines by Shun Nanjo, Arifin, Hayato Maeda, Yoshihiro Hayashi, Kan Hatakeyama-Sato, Ryoji Himeno, Teruaki Hayakawa, Ryo Yoshida

    Published 2025-01-01
    “…As a proof-of-concept study, we synthesized optical polymers that surpass the Pareto boundary formed by the tradeoff between the refractive index and the Abbe number.…”
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  7. 3087

    Recurrent Diffuse Large B-Cell Lymphoma with the Initial Manifestation of Retinal Involvement by Wan-Ting Yeh, Jen-Tsun Lin*

    Published 2023-07-01
    “…She visited the ophthalmologist 9 years after remission with the chief complaint of ocular congestion, watery discharge, and blurred vision for weeks. The optical coherent tomography revealed hyper-reflective material accumulation in the intraretinal and subretinal pigment epithelial spaces. …”
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  8. 3088

    Laboratory study on magnetization reduction of CO by Li Y., Yuan S., Han Y., Zhang S., Gao P.

    Published 2018-01-01
    “…In addition, the phase transformation, changes in magnetism, and microstructures were studied by thermodynamic analysis, chemical analysis, X-ray diffraction technique (XRD), vibrating sample magnetometer (VSM), and optical microscopy. The magnetic concentrates with the total iron grade of 57.65% and recovery of 90.04% were obtained under the optimum conditions. …”
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  9. 3089

    Universal in situ supersaturated crystallization enables 3D printable afterglow hydrogel by Shuman Zhang, Yunliang Ji, Shiyi Chen, Siming Chen, Dongjie Xiao, Cheng Chen, Guangyao Guo, Mingjian Zeng, Weiguang Wang, Jingyu Zhang, Hui Li, Ye Tao, Gaozhan Xie, Huanhuan Li, Yizhou Zhang, Runfeng Chen, Wei Huang

    Published 2025-02-01
    “…Abstract Stretchable afterglow materials have garnered widespread attention owing to their unique combination of optical properties and mechanical flexibility. However, achieving a crystal environment to suppress the non-radiative transition of triplet excitons poses a challenge in constructing stretchable afterglow materials. …”
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  10. 3090

    Enhancement of Methane Detection in Tunable Diode Laser Absorption Spectroscopy Using Savitzky–Golay Filtering by Shichao Chen, Xing Tian, Tong Mu, Jun Yuan, Xile Cao, Gang Cheng

    Published 2024-12-01
    “…In order to enhance gas absorption efficiency and improve the detection sensitivity of methane, a gas absorption cell with an effective optical path length of 29.37 m was developed, employing tunable diode laser absorption spectroscopy (TDLAS) and a distributed feedback (DFB) laser with a center wavelength of 1.654 μm as the light source. …”
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  11. 3091

    Analytical simulations for rate type nanomaterial stretching flow with dual convection by Manzoor Ahmad, Sami Ullah Khan, Syeda Quratulain, Adnan, M. Waqas, Hakim AL Garalleh, Nurnadiah Zamri, Dilsora Abduvalieva, Manish Gupta

    Published 2025-03-01
    “…Ongoing continuous research in nanofluid suggested different applications of nanomaterials in catalysis, aerospace engineering, oil industry, various optical devices, medical imaging etc. The objective for exploring current investigation is to disclose the thermal impact of Oldroyd-B nanofluid comprising the buoyancy driven flow. …”
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  12. 3092

    A novel model of photoacoustic and thermalelectronic waves in semiconductor material by M. H. Raddadi, Kh. Lotfy, A. A. El-Bary, A. M. S. Mahdy, E. S. Elidy

    Published 2025-01-01
    “…The photoacoustic wave creation is independent of the electron–phonon and electron–hole thermalization and results from the thermoelastic stress brought on by the increase in temperature generated by the light. Considering the optical, elastic, and thermoelastic properties of semiconductor material, photoacoustic signals are predicted by solving a thermal diffusion issue and then a thermoelastic problem in sequence. …”
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  13. 3093

    Construction and Testing of Lightweight and Low-Cost Pneumatically Inflated Solar Concentrators by F. M. I. De Los Santos-García, Y. Nahmad-Molinari, J. Nieto-Navarro, C. Alanís-Ruiz, Felipe Patiño-Jiménez

    Published 2016-01-01
    “…The concentrator system is lightweight and inexpensive since it was made of polymeric membranes and was pneumatically inflated to acquire its cylindrical shape achieving good optical quality. Further implementation of a flat and a cylindrical extension of the concentrating mirror as secondary mirrors was incorporated into the concentrator design in order to compensate for seasonal variations of collected radiation. …”
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  14. 3094

    Coalescence of carbon nanotubes while preserving the chiral angles by Akira Takakura, Taishi Nishihara, Koji Harano, Ovidiu Cretu, Takeshi Tanaka, Hiromichi Kataura, Yuhei Miyauchi

    Published 2025-02-01
    “…The (2n, 2 m) nanotubes constitute up to ≈ 20%–40% of the final sample in the most efficient case. Additional optical absorption peaks of the (2n, 2 m) nanotubes emerge, indicating that the reaction occurs over the entire sample. …”
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  15. 3095

    Type 2 Inflammatory Responses in Autoimmune Demyelination of the Central Nervous System: Recent Advances by Massimo Costanza

    Published 2019-01-01
    “…In neuromyelitis optica, an autoimmune demyelinating disorder of the spinal cord and optic nerve, eosinophils extensively infiltrate lesions in the central nervous system (CNS) and promote tissue pathology in experimental models of this disease. …”
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  16. 3096

    Formation of Residual Bubbles in Diesel Engine Nozzle and Their Influence on Initial Jet by Xiaonan Ni, Hua Wen

    Published 2021-01-01
    “…The method of combining experiment and numerical simulation was used to study the cavitation and gas backflow phenomena during nozzle off-flow stage and the influence of residual bubbles on the initial jet in the near field. An equal-size optical nozzle based on acrylic material is designed, and the injection process of the fuel nozzle is photographed using high-speed photography technology. …”
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  17. 3097
  18. 3098

    Extensive Longitudinal Transverse Myelitis after Influenza A Virus Infection in a Patient with Systemic Lupus Erythematosus by Suheiry Márquez, Luis M. Vilá

    Published 2022-01-01
    “…We report a 30-year-old woman with SLE who had influenza A and a few days later developed urinary retention, bilateral lower extremity paralysis, upper extremity weakness, and optic nerve and macular edema. Magnetic resonance imaging showed C4-T12 hyperintense lesions consistent with TM. …”
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  19. 3099
  20. 3100

    GRB 130603B: No Compelling Evidence for Neutron Star Merger by Shlomo Dado, Arnon Dar

    Published 2015-01-01
    “…The late-time flare/rebrightening of the NIR-optical afterglow of SHB 130603B could have been produced also by jet collision with an interstellar density bump. …”
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