Showing 861 - 880 results of 1,118 for search '"photonics"', query time: 0.04s Refine Results
  1. 861

    Revisiting Angular Momentum Quantization in Bohr's Atomic Model by Jorge Henrique de Oliveira Sales, Alfredo Takashi Suzuki

    Published 2022-03-01
    “…In our approach here we show that when we identify the number of photons and the quantum number for the orbit, we are led to Bohr's hypothesis as a consequence of the Planck's energy quantization.   …”
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  2. 862

    Neutrophil adhesion to vessel walls impairs pulmonary circulation in COVID-19 pathology by Hiroshi Ueki, I-Hsuan Wang, Maki Kiso, Kenta Horie, Shun Iida, Sohtaro Mine, Michiko Ujie, Hung-Wei Hsu, Chen-Hui Henry Wu, Masaki Imai, Tadaki Suzuki, Wataru Kamitani, Eiryo Kawakami, Yoshihiro Kawaoka

    Published 2025-01-01
    “…In this study, we investigated mouse models with severe pneumonia caused by SARS-CoV-2 infection by using our in vivo two-photon imaging system. In the lungs of SARS-CoV-2-infected mice, increased expression of adhesion molecules in intravascular neutrophils prolonged adhesion time to the vessel wall, resulting in platelet aggregation and impaired lung perfusion. …”
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  3. 863

    On the two-loop BSM corrections to $$h\longrightarrow \gamma \gamma $$ h ⟶ γ γ in a triplet extension of the SM by Giuseppe Degrassi, Pietro Slavich

    Published 2025-01-01
    “…We focus on the two-loop corrections controlled by the quartic scalar couplings, and obtain explicit and compact formulas for the $$h \gamma \gamma $$ h γ γ amplitude by means of a low-energy theorem that connects it to the derivative of the photon self-energy w.r.t. the Higgs field. We briefly discuss the numerical impact of the newly-computed contributions, showing that they may be required for a precise determination of $$\Gamma [h\rightarrow \gamma \gamma ]$$ Γ [ h → γ γ ] in scenarios where the quartic scalar couplings are large.…”
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  4. 864

    All-angle unidirectional flat-band acoustic metasurfaces by Chenglin Han, Shida Fan, Hong-Tao Zhou, Kuan He, Yurou Jia, Changyou Li, Hongzhu Li, Xiao-Dong Yang, Li-Qun Chen, Tianzhi Yang, Cheng-Wei Qiu

    Published 2025-01-01
    “…However, the spatial symmetry protection in photonic or acoustic lattices naturally forces flat bands to manifest in pairs aligned at an inherently specific angle, resulting in a fixed bidirectional canalization. …”
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  5. 865

    Tuning the Refractive Index and Optical Band Gap of Silk Fibroin Films by Electron Irradiation by S. Asha, Y. Sangappa, Sanjeev Ganesh

    Published 2015-01-01
    “…It is also observed from results that there is increase in dielectric constants with increasing photon energy. The observed optical changes have been tried to be correlated with the structural changes, revealed through FT-IR spectroscopy. …”
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  6. 866

    NaI(Tl) Detector Efficiency Computation Using Radioactive Parallelepiped Sources Based on Efficiency Transfer Principle by Mohamed S. Badawi, Mona M. Gouda, Ahmed M. El-Khatib, Abouzeid A. Thabet, Ahmed A. Salim, Mahmoud I. Abbas

    Published 2015-01-01
    “…Besides, the attenuation of the photon by the source-to-detector system (detector material, detector end cap, and holder material) was considered and determined. …”
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  7. 867

    Effect of Deoxycholic Acid on the Performance of Liquid Electrolyte Dye-Sensitized Solar Cells Using a Perylene Monoimide Derivative by Ganesh D. Sharma, Rajnish Kurchania, Richard J. Ball, Mahesh S. Roy, John A. Mikroyannidis

    Published 2012-01-01
    “…The current-voltage characteristics under illumination and incident photon to current efficiency (IPCE) spectra of the DSSCs showed that the coadsorption of DCA with the PCA dye results in a significant improvement in short circuit photocurrent and slight increase in the open circuit photovoltage, which lead to an overall power conversion efficiency. …”
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  8. 868

    Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE by Gordeev Pavel

    Published 2025-01-01
    “…Historically, the first one used the decay channel Σ+ → pπ0 with reconstruction of the proton with the tracking systems at mid-rapidity and the π0 in the electromagnetic calorimeter EMCAL or via the photon conversion method. The second technique used the decay channel ∑-± → n¯π± where charged pions are reconstructed with the tracking systems and the anti-neutron in the precise electromagnetic calorimeter PHOS. …”
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  9. 869

    A Case of REM Sleep Behavior Disorder, Narcolepsy-Cataplexy, Parkinsonism, and Rheumatoid Arthritis by Filomena I. I. Cosentino, Angela Distefano, Giuseppe Plazzi, Carlos H. Schenck, Raffaele Ferri

    Published 2014-01-01
    “…A 78-year-old male patient in whom RBD was first diagnosed was followed-up by clinical examination, video-polysomnography, multiple sleep latency test, cerebral magnetic resonance imaging, and dopamine transporter imaging by single-photon emission computerized tomography. The patient was found to present for almost two decades, in addition to RBD, also narcolepsy. …”
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  10. 870
  11. 871

    Epsilon Canis Majoris: The Brightest Extreme-ultraviolet Source with Surprisingly Low Interstellar Absorption by J. Michael Shull, Rachel M. Curran, Michael W. Topping

    Published 2025-01-01
    “…After correcting for interstellar H i column density N _HI = (6 ± 1) × 10 ^17 cm ^−2 , we find a stellar LyC photon flux Φ _LyC ≈ 3000 cm ^−2 s ^−1 and ionizing luminosity Q _LyC = 10 ^45.7±0.3 photons s ^−1 . …”
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  12. 872

    Performance of Water-Based Liquid Scintillator: An Independent Analysis by D. Beznosko, A. Batyrkhanov, A. Duspayev, A. Iakovlev, M. Yessenov

    Published 2014-01-01
    “…The results show that a goal of ~100 optical photons/MeV, indicated by the simulation to be an optimal light yield for observing both the Cerenkov ring and the scintillation light from the proton decay in a large water detector, has been achieved.…”
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  13. 873

    Concurrence of Crossed Cerebellar Diaschisis and Parakinesia Brachialis Oscitans in a Patient with Hemorrhagic Stroke by Yung-Tsan Wu, Shin-Tsu Chang, Liang-Cheng Chen, Tsung-Ying Li

    Published 2013-01-01
    “…Two months after the stroke, the single photon emission computed tomography (SPECT) showed CCD. …”
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  14. 874

    Quantum control in size selected semiconductor quantum dot thin films by Kärcher Victor, Reiker Tobias, da Costa Pedro F.G.M., de Camargo Andrea S.S., Zacharias Helmut

    Published 2025-01-01
    “…Third harmonic generation (λ 3 = 343 nm, hν = 3.61 eV) for a fundamental wavelength of λ 1 = 1,030 nm is used to control quantum interference of three-photon resonant paths between the valence and conduction bands. …”
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  15. 875

    Optical Coherence Tomography of Van Der Waals Heterostructures Using Extreme Ultraviolet Light by Felix Wiesner, Johann J. Abel, Muhammad Hussain, Vipin Krishna, Alisson R. Cadore, Juan P. G. Felipe, Ana M. Valencia, Martin Wünsche, Julius Reinhard, Marco Gruenewald, Caterina Cocchi, Gerhard G. Paulus, Giancarlo Soavi, Silvio Fuchs

    Published 2025-02-01
    “…The EUV coherence tomography contrast is estimated in a broad spectral range (photon energy 65 –100 eV). This work sets the basis for the development of a new spectroscopy tool that, thanks to the temporal profile of EUV light sources and the high axial resolution of coherence tomography, can become the ideal probe of ultrafast processes occurring in van der Waals heterostructures and buried nanoscale opto‐electronic devices.…”
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  16. 876

    Unique ultrastructural organization of human rod photoreceptors by Tylor R. Lewis, Natalia V. Klementieva, Sebastien Phan, Carson M. Castillo, Keun-Young Kim, Lauren Y. Cao, Mark H. Ellisman, Vadim Y. Arshavsky, Oleg Alekseev

    Published 2025-01-01
    “…Abstract Rod and cone photoreceptor cells are specialized neurons responsible for transforming the information reaching the eyes in the form of photons into the language of neuronal activity. Rods are the most prevalent photoreceptor type, primarily responsible for light detection under conditions of limited illumination. …”
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  17. 877

    Hidden monopole dark matter via axion portal and its implications for direct detection searches, beam-dump experiments, and the H0 tension by Ryuji Daido, Shu-Yu Ho, Fuminobu Takahashi

    Published 2020-01-01
    “…We also note that the hidden photons mainly produced by the axion decay contribute to dark radiation with ∆Neff ≃ 0.6 which can relax the H0 tension.…”
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  18. 878

    Resource Placement for Rate and Fidelity Maximization in Quantum Networks by Shahrooz Pouryousef, Hassan Shapourian, Alireza Shabani, Ramana Kompella, Don Towsley

    Published 2024-01-01
    “…Existing classical optical network infrastructure cannot be immediately used for quantum network applications due to photon loss. The first step toward enabling quantum networks is the integration of quantum repeaters into optical networks. …”
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  19. 879

    Plasmonic-Resonant Bowtie Antenna for Carbon Nanotube Photodetectors by Hongzhi Chen, Ning Xi, King Wai Chiu Lai, Liangliang Chen, Carmen Kar Man Fung, Jianyong Lou

    Published 2012-01-01
    “…Bowtie antennas may find wide applications in nanoscale photonic sensors.…”
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  20. 880

    Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D by Somenath Chatterjee, Sumeet Singh, Himangshu Pal

    Published 2014-01-01
    “…This design allows less energetic photons to pass through the upper layer(s) and be absorbed by the layer below, which increases the overall efficiency of the solar cell. …”
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