Showing 1,001 - 1,020 results of 1,118 for search '"Photonics"', query time: 0.05s Refine Results
  1. 1001

    Bulk Motions in the Black Hole Jet Sheath as a Candidate for the Comptonizing Corona by Navin Sridhar, Bart Ripperda, Lorenzo Sironi, Jordy Davelaar, Andrei M. Beloborodov

    Published 2025-01-01
    “…These properties suggest that the dissipative jet sheath may be a viable “coronal” region, capable of upscattering seed soft photons into a hard, nonthermal tail, as seen during the hard states of X-ray binaries and active galactic nuclei.…”
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  2. 1002

    Motion-tolerant 3D volumetric multimodality microscopy imaging of human skin with subcellular resolution and extended field-of-view by Zhenguo Wu, Yunxian Tian, Jianhua Zhao, Yimei Huang, Harvey Lui, Sunil Kalia, Haishan Zeng

    Published 2025-02-01
    “…A multimodality microscopy system using this method provides simultaneous reflectance confocal, two-photon excited fluorescence, and second harmonic generation imaging, enabling multi-contrast capabilities. …”
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  3. 1003

    C-N vs. C-C Bond Photodissociation in N-(tert-butyldiphenylmethyl)aniline by Stylianos Garas, Michael G. Siskos, Antonios K. Zarkadis

    Published 2004-01-01
    “…At higher laser pulse intensities the radical 1a• is reexcited by a second photon leading through electrocyclization to the 4a,4b-dihydro-9-tert-butylfluorenyl radical (DHBF•) and finally to fluorenyl products. …”
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  4. 1004

    Characterization of Synthetic Ni(II)-Xylenol Complex as a Photosensitizer for Wide-Band Gap ZnO Semiconductor Electrodes by Suman Kushwaha, Lal Bahadur

    Published 2011-01-01
    “…The sandwich-type dye-sensitized solar cell using ZnO semiconducting thin film with test dye anchored onto it showed the cell output as follows: VOC=0.506 V, Jsc=1.68 mA cm−2, and FF=0.41 under illumination with full spectrum of light (intensity 520 mW cm−2), while on illumination with visible light (λ>420 nm, intensity 480 mW cm−2), VOC=0.506 V, Jsc=1.4 mA cm−2, and FF=0.49 were achieved. Maximum incident photon-to-current conversion efficiency for the present system was found to be 8.7% at wavelength (λmax=563 nm).…”
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  5. 1005

    A multidimensional approach to quantum state tomography of photoelectron wavepackets by H. Laurell, J. Baños-Gutiérrez, A. L’Huillier, D. Busto, D. Finkelstein-Shapiro

    Published 2025-01-01
    “…To this end, several methods to reconstruct the density matrix, quantum state tomography protocols, have been developed and tested on photoelectrons ejected from noble gases following absorption of extreme ultraviolet (XUV) photons from attosecond pulses. It remains a challenge to obtain model-free, single scan protocols that can reconstruct the density matrix with high fidelities. …”
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  6. 1006

    Brain neurons internalise polymeric micron-sized capsules: Insights from in vitro and in vivo studies by Olga Kopach, Olga A. Sindeeva, Kaiyu Zheng, Eleanor McGowan, Gleb B. Sukhorukov, Dmitri A. Rusakov

    Published 2025-04-01
    “…In the intact brain, multiplexed two-photon excitation imaging in vivo confirmed the internalisation of microcapsules by cortical neurons following delivery to the somatosensory brain region. …”
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  7. 1007

    Theoretical understanding of water splitting by analyzing nanocatalyst photoabsorption spectra by Gollapalli Prince, Caspary Toroker Maytal

    Published 2025-02-01
    “…Photons can be used to either monitor or induce catalysis by acting as photoexcited holes or quasi particles, which aid in water splitting reaction leading to a major step towards sustainable energy. …”
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  8. 1008

    Effects of Level of Retrieval Success on Recall-Related Frontal and Medial Temporal Lobe Activations by Daniela Montaldi, Andrew R. Mayes, Anna Barnes, Donald M. Hadley, Jim Patterson, David J. Wyper

    Published 2002-01-01
    “…Brain dedicated single photon emission computed tomography (SPECT) was used to compare the neuroactivation produced by the cued recall of response words in a set of studied word pairs with that produced by the cued retrieval of words semantically related to unstudied stimulus words. …”
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  9. 1009

    Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast by Shreekripa Rao, Alpha Benny, Srinidhi Chandraguthi, Rechal Dsouza

    Published 2024-10-01
    “…Material and Methods: Twenty patients (10 with left and 10 with right breast cancer) were planned with Tangential Volumetric Modulated Arc Therapy (tVMAT) and Half Beam Volumetric Modulated Arc Therapy (HVMAT) techniques for prescribed dose of 42.56Gy over 16 fractions with 6MV photon. The tVMAT technique limit the radiation to non-target areas. …”
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  10. 1010

    Enhanced solar hydrogen production via reconfigured semi-polar facet/cocatalyst heterointerfaces in GaN/Si photocathodes by Wei Chen, Danhao Wang, Weiyi Wang, Xin Liu, Yuying Liu, Chao Wang, Yang Kang, Shi Fang, Xudong Yang, Wengang Gu, Dongyang Luo, Yuanmin Luo, Zongtao Qu, Chengjie Zuo, Yi Kang, Lin Cheng, Wensheng Yan, Wei Hu, Ran Long, Jr-Hau He, Kang Liang, Sheng Liu, Yujie Xiong, Haiding Sun

    Published 2025-01-01
    “…Here, we report a unique photoelectrode composed of reconfigured gallium nitride nanowire-on-silicon wafer loaded with Au nanoparticles as cocatalyst that achieved an impressive applied bias photon-to-current efficiency of 10.36% under AM 1.5G one sun illumination while exhibiting stable PEC hydrogen evolution over 800 h at a high current density. …”
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  11. 1011

    First in Vivo SPECT Imaging of Mouse Femorotibial Cartilage Using Tc-NTP 15-5 by Elisabeth Miot-Noirault, Aurélien Vidal, Philippe Auzeloux, Jean-Claude Madelmont, Jean Maublant, Nicole Moins

    Published 2008-11-01
    “…This study aimed to report the first single-photon emission computed tomographic (SPECT) imaging of articular cartilage in mice using 99m Tc-NTP 15-5 radiotracer. …”
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  12. 1012
  13. 1013

    DC-DC Boost Converter Design With Analog Feedback Control for Cryogenic Applications by Danilo Santoro, Niccolo Gallice, Marco Bassani, Paolo Cova, Nicola Delmonte, Massimo Lazzaroni, Valeria Trabattoni, Andrea Zani

    Published 2025-01-01
    “…However, in the Deep Underground Neutrino Experiment (DUNE) Vertical Drift design, the Photon Detection System (PDS) electronic readout and bias circuits and sensors must be installed on the cathode plane, which is biased at a high DC voltage (-300 kV). …”
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  14. 1014

    Synergistic mapping of urban tree canopy height using ICESat-2 data and GF-2 imagery by Xiaodi Xu, Ya Zhang, Peng Fu, Chaoya Dang, Bowen Cai, Qingwei Zhuang, Zhenfeng Shao, Deren Li, Qing Ding

    Published 2025-02-01
    “…To address this issue, this study utilized ICESat-2 photon spot height data as reference samples, in conjunction with high-resolution GF-2 remote sensing data, to estimate UTCH. …”
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  15. 1015

    MCNP-X Monte Carlo Code Application for Mass Attenuation Coefficients of Concrete at Different Energies by Modeling 3 × 3 Inch NaI(Tl) Detector and Comparison with XCOM and Monte C... by Huseyin Ozan Tekin

    Published 2016-01-01
    “…In the present work, the applicability of MCNP-X Monte Carlo code for mass attenuation of concrete sample material as building material at photon energies 59.5 keV, 80 keV, 356 keV, 661.6 keV, 1173.2 keV, and 1332.5 keV has been tested by using validated NaI(Tl) detector. …”
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  16. 1016

    Surface Quality Monitoring and Improvement for Dimensional Metrology in Inline CT by Denoising with Neural Networks and Fast Surface Quality Metric by Faizan Ahmad, Ahmed Baraka, César Cardona-Marin, Steffen Kieß, Dominik Wolfschläger, Robert H. Schmitt, Sven Simon

    Published 2025-02-01
    “…However, the short machine cycle times—often just a few minutes—require either fewer X-ray projections or shorter detector exposure times, significantly reducing photon counts by one to two orders of magnitude compared to lab-based CT systems. …”
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  17. 1017
  18. 1018

    Flavoured leptogenesis and CPμτ symmetry by Rome Samanta, Manibrata Sen

    Published 2020-01-01
    “…It is only below this bound that the observed baryon-to-photon ratio can be realized for a standard N1 domination, else a substantial part of the parameter space is also compatible with N2DS. …”
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  19. 1019

    A review of state-of-the-art resolution improvement techniques in SPECT imaging by Zhibiao Cheng, Ping Chen, Jianhua Yan

    Published 2025-01-01
    “…Abstract Single photon emission computed tomography (SPECT), a technique capable of capturing functional and molecular information, has been widely adopted in theranostics applications across various fields, including cardiology, neurology, and oncology. …”
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  20. 1020

    Assessing SPECT/CT for the identification of cartilage lesions in the knee joint: A systematic review by Larissa Rix, Samuel Tushingham, Karina Wright, Martyn Snow

    Published 2025-03-01
    “…Background: Single-photon emission computerised tomography with conventional computer tomography (SPECT/CT) is an emerging technology which may hold clinical value for the identification of cartilage lesions in the knee joint. …”
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