Showing 1,341 - 1,360 results of 1,490 for search '"Photonics"', query time: 0.04s Refine Results
  1. 1341

    Quality of computed tomography image versus dose in hybrid studies: preliminary results in phantom by Adlin López Díaz, Armando del Pozo Almaguer, Adalberto Machado Tejeda, Karla Batista Ramó, Carlos F Calderón Marín, Leonel Torres Aroche

    Published 2022-03-01
    “…<br /><strong>Methods:</strong> to evaluate the image quality, the Catphan and Livermore phantom were used in 12 pre-established protocols of a Mediso single photon emission tomography equipment. The data for the dose descriptors for each study were obtained from the DICOM head. …”
    Get full text
    Article
  2. 1342

    Physical and Chemical Approaches of Photovoltaic Parameters in Dye-Sensitized Solar Cells to ZnO/ZnS:rGO-Based Photoelectrodes by Thiago Kurz Pedra, Ramon Dadalto Carvalho, Cristian Dias Fernandes, Luciano Timm Gularte, Carolina Ferreira de Matos Jauris, Eduardo Ceretta Moreira, Mateus Meneghetti Ferrer, Cristiane Wienke Raubach, Sérgio da Silva Cava, Pedro Lovato Gomes Jardim, Elson Longo, Mario Lucio Moreira

    Published 2024-12-01
    “…This study proposes an alternative process for obtaining ZnO/ZnS:rGO heterostructures for use in DSSCs and as promising materials for potential applications in other photonic process, such as photocatalysis and photodetection. …”
    Get full text
    Article
  3. 1343

    PKS 2332–017 and PMN J1916–1519: Candidate Blazar Counterparts to Two High-energy Neutrino Events by Shunhao Ji, Zhongxiang Wang, Dong Zheng

    Published 2025-01-01
    “…The two flares, respectively, from PKS 2332–017 and PMN J1916–1519 lasted ~4 yr and ~4 months and showed possible emission hardening by containing high-energy ~2–10 GeV photons in the emissions. Accompanying the flare of PKS 2332–017, optical and mid-infrared brightening variations were also observed. …”
    Get full text
    Article
  4. 1344

    Preparation of Chloro Penta Amine Cobalt(III) Chloride and Study of Its Influence on the Structural and Some Optical Properties of Polyvinyl Acetate by Nada K. Abbas, Majeed Ali Habeeb, Alaa J. Kadham Algidsawi

    Published 2015-01-01
    “…It was observed that the optical conductivity increased with photon energy and with the increase of [Co(NH3)5Cl]Cl2 concentration.…”
    Get full text
    Article
  5. 1345

    Emerging opto-operando techniques to shed light on lithium-ion batteries by Shubham Chamola, Shahab Ahmad

    Published 2025-04-01
    “…In-situ opto-operando techniques exploit basic principles of optics by coupling low-energy photons (visible to IR range) into the operational battery to visualize real-time dynamics of electrochemical processes occurring at the nanoscale. …”
    Get full text
    Article
  6. 1346

    Molecular Imaging of the Human Pulmonary Vascular Endothelium Using an Adrenomedullin Receptor Ligand by François Harel, Xavier Levac, Quang T. Nguyen, Myriam Létourneau, Sophie Marcil, Vincent Finnerty, Mariève Cossette, Alain Fournier, Jocelyn Dupuis

    Published 2015-05-01
    “…Labeled with 99m Tc, it allows single-photon emission computed tomographic (SPECT) imaging of lung perfusion. …”
    Get full text
    Article
  7. 1347

    Quarter-Millimeter-Resolution Molecular Mouse Imaging with U-SPECT by Oleksandra Ivashchenko, Frans van der Have, Jose L. Villena, Harald C. Groen, Ruud M. Ramakers, Harrie H. Weinans, Freek J. Beekman

    Published 2015-01-01
    “…Limited spatial resolution of preclinical positron emission tomography (PET) and single-photon emission computed tomography (SPECT) has slowed down applications of molecular imaging in small animals. …”
    Get full text
    Article
  8. 1348

    A thin film optoelectronic photodetector of spherical and linear resonators via one-pot synthesis of Bi(III) oxide/polypyrrole nanocomposite by Fatemah H. Alkallas, Mohamed Rabia, Fedor V. Kusmartsev, Amira Ben Gouider Trabelsi

    Published 2025-01-01
    “…The device also shows a wavelength-dependent response, with the highest responsivity (R) of 1.0 and 0.9 mA/W and detectivity (D) of 0.221 × 109 and 0.20 × 109 Jones at photon energies of 3.6 eV and 2.8 eV, respectively. …”
    Get full text
    Article
  9. 1349

    The effect of uniaxial compressive and tensile strains on the structural, dynamical, electronic, and optical properties of ZrCl2 monolayer: Ab-initio calculations by Hind Alqurashi, Bothina Hamad, M.O. Manasreh

    Published 2025-06-01
    “…In addition, the optical properties of ZrCl2 ML are calculated, and the optical absorption is found to exhibit a significant anisotropy in the photon energy range of 0 - 13 eV. Based on the result of the optical properties, a ZrCl2 ML is expected to potentially be a candidate for optoelectronic applications, such as an infrared photodetector.…”
    Get full text
    Article
  10. 1350

    Supralinear dendritic integration in murine dendrite-targeting interneurons by Simonas Griesius, Amy Richardson, Dimitri Michael Kullmann

    Published 2025-01-01
    “…Here, we use patch-clamp electrophysiology, and two-photon calcium imaging and glutamate uncaging, to show that supralinear dendritic integration of near-synchronous spatially clustered glutamate-receptor mediated depolarization occurs in NDNF-positive neurogliaform cells and oriens-lacunosum moleculare interneurons in the mouse hippocampus. …”
    Get full text
    Article
  11. 1351

    Effects of Leptonic Nonunitarity on Lepton Flavor Violation, Neutrino Oscillation, Leptogenesis, and Lightest Neutrino Mass by Gayatri Ghosh, Kalpana Bora

    Published 2018-01-01
    “…We do a parameter scan of a minimal see-saw model in a type I see-saw framework satisfying the Planck data on baryon to photon ratio of the Universe, which lies in the interval 5.8×10-10<YB<6.6×10-10(BBN). …”
    Get full text
    Article
  12. 1352

    Unravelling the nonlinear generation of designer vortices with dielectric metasurfaces by Laure Coudrat, Guillaume Boulliard, Jean-Michel Gérard, Aristide Lemaître, Aloyse Degiron, Giuseppe Leo

    Published 2025-01-01
    “…Our findings underscore the potential of nonlinear dielectric metasurfaces for versatile structured-light generation and manipulation, paving the way for future developments in integrated photonic systems.…”
    Get full text
    Article
  13. 1353

    ALP-ine quests at the LHC: hunting axion-like particles via peaks and dips in t t ¯ $$ t\overline{t} $$ production by Afiq Anuar, Anke Biekötter, Thomas Biekötter, Alexander Grohsjean, Sven Heinemeyer, Laurids Jeppe, Christian Schwanenberger, Georg Weiglein

    Published 2024-12-01
    “…Finally, we compare the limits obtained from the t t ¯ $$ t\overline{t} $$ searches to existing experimental bounds from LHC searches for narrow di-photon resonances, from measurements of the production of four top quarks, and from global analyses of ALP–SMEFT interference effects.…”
    Get full text
    Article
  14. 1354

    Synthesis and Characterisation of Copper(II) Complexes with Tridentate NNO Functionalized Ligand: Density Function Theory Study, DNA Binding Mechanism, Optical Properties, and Biol... by Madhumita Hazra, Tanushree Dolai, Akhil Pandey, Subrata Kumar Dey, Animesh Patra

    Published 2014-01-01
    “…The microscopy investigation suggested that microwires exhibited optical waveguide behaviour which are applicable as fluorescent nanomaterials and can be used as building blocks for miniaturized photonic devices. Antibacterial study reveals that complexes are better antimicrobial agents than free Schiff base due to bacterial cell penetration by chelation. …”
    Get full text
    Article
  15. 1355

    Explaining the γγ + X excesses at ≈151.5 GeV via the Drell-Yan production of a Higgs triplet by Saiyad Ashanujjaman, Sumit Banik, Guglielmo Coloretti, Andreas Crivellin, Siddharth P. Maharathy, Bruce Mellado

    Published 2025-03-01
    “…We use the side-bands of the ATLAS analysis [1] of the associated production of the Standard Model Higgs in the di-photon channel to search for this production mode of the triplet. …”
    Get full text
    Article
  16. 1356

    Electrophysiologically calibrated optogenetic stimulation of dentate granule cells mitigates dendritic spine loss in denervated organotypic entorhino-hippocampal slice cultures by Tijana Hanauske, Carolin Christina Koretz, Tassilo Jungenitz, Jochen Roeper, Alexander Drakew, Thomas Deller

    Published 2025-02-01
    “…After several days of contact-free photonic stimulation, we were able to ameliorate entorhinal denervation-induced structural damage in GCs. …”
    Get full text
    Article
  17. 1357

    Novel approach to enhance the efficiency of mortar against radiations by co-incorporation of lead and boron compounds with calcium chloride by Hussein Al-kroom, Ahmed S. Ouda, Wageeh Ramadan, Mahmoud Gharieb, Mudar Hamsho, Hamdy A. Abdel-Gawwad

    Published 2025-01-01
    “…Once, the optimal compositions were explored, another batch of mortar were designed to increase efficiency against radioactive sources with different photon energies. After 28 days, bulk density, linear attenuation coefficient, half-value layer, tenth-value layer, and mean-free path in the field of 137Cs and51Co were considered. …”
    Get full text
    Article
  18. 1358

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

    Published 2016-09-01
    “…The dependence of photon energy from energy of photoelectron is base of photoemission radiation analysis. …”
    Get full text
    Article
  19. 1359

    MARVEL Analysis of the Measured High-resolution Spectra of 12C16O by Salman Mahmoud, Nayla El-Kork, Nariman Abu Elkher, Mubarak Almehairbi, Malathe Samir Khalil, Tibor Furtenbacher, Attila G. Császár, Olga P. Yurchenko, Sergey N. Yurchenko, Jonathan Tennyson

    Published 2025-01-01
    “…The validation procedure covers all transitions with a one-photon absorption intensity larger than 10 ^−30 cm molecule ^−1 at 296 K. …”
    Get full text
    Article
  20. 1360

    Shock Breakouts from Compact Circumstellar Medium Surrounding Core-collapse Supernova Progenitors May Contribute Significantly to the Observed ≳10 TeV Neutrino Background by Eli Waxman, Tal Wasserman, Eran O. Ofek, Avishay Gal-Yam

    Published 2025-01-01
    “…The compact size and large UV luminosity imply a pair production optical depth of  ~10 ^4 for  > 100 GeV photons, naturally accounting for the lack of a high-energy gamma-ray background accompanying the neutrino background. …”
    Get full text
    Article