Showing 1,381 - 1,400 results of 1,490 for search '"photonics"', query time: 0.05s Refine Results
  1. 1381

    Shadow and strong gravitational lensing of new wormhole solutions supported by embedding Class-I condition by Niyaz Uddin Molla, Himanshu Chaudhary, Ujjal Debnath, G. Mustafa, S. K. Maurya

    Published 2025-01-01
    “…The present paper considers the wormhole throat to act as a photon sphere. We first derive null geodesics using the Hamilton-Jacobi separation method to investigate the shadow and strong gravitational lensing caused by the wormhole throat. …”
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  2. 1382

    Enhanced sensitivity via non-Hermitian topology by Midya Parto, Christian Leefmans, James Williams, Robert M. Gray, Alireza Marandi

    Published 2025-01-01
    “…Here, we experimentally demonstrate NTOS using a network of photonic time-multiplexed resonators in the synthetic dimension represented by optical pulses. …”
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  3. 1383

    One-pot fabrication of highly porous morphology of ferric oxide-ferric oxychloride/poly-O-chloroaniline nanocomposite seeded on poly-1H pyrrole: Photocathode for green hydrogen gen... by Rabia Mohamed, Alnuwaiser Maha Abdallah

    Published 2025-01-01
    “…Furthermore, the photocathode demonstrates excellent sensitivity to various photon energies across wavelengths ranging from 730 to 340 nm, achieving J ph values of −0.0145 and −0.012 mA/cm2, respectively. …”
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  4. 1384

    Assessment of Cardiovascular Apoptosis in the Isolated Rat Heart by Magnetic Resonance Molecular Imaging by Karl-Heinz Hiller, Christiane Waller, Matthias Nahrendorf, Wolfgang R. Bauer, Peter M. Jakob

    Published 2006-04-01
    “…For the detection of apoptosis in vivo, positron emission tomography and single-photon emission computed tomography have been shown to be suitable tools. …”
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  5. 1385

    Infection with Toxoplasma gondii triggers coagulation at the blood-brain barrier and a reduction in cerebral blood flow by Evelyn M. Hoover, Christine A. Schneider, Christian Crouzet, Tatiane S. Lima, Dario X. Figueroa Velez, Cuong J. Tran, Dritan Agalliu, Sunil P. Gandhi, Bernard Choi, Melissa B. Lodoen

    Published 2025-01-01
    “…Main body We demonstrate that brain endothelial cells upregulate the adhesion molecules ICAM-1 and VCAM-1 and become morphologically more tortuous during acute T. gondii infection of mice. Longitudinal two-photon imaging of cerebral blood vessels during infection in mice revealed vascular occlusion in the brain, prompting an analysis of the coagulation cascade. …”
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  6. 1386

    Analysis of Melanin Concentration on Reflective Pulse Oximetry Using Monte Carlo Simulations by Maximilian Reiser, Oliver Amft, Andreas Breidenassel

    Published 2025-01-01
    “…Monte Carlo (MC) simulations were used to analyse photon-tissue interactions, and detection of reflected light during systole and diastole. …”
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  7. 1387

    Chalcogenide perovskites: enticing prospects across a wide range of compositions and optoelectronic properties for stable photodetector devices by Shilpa Mariam Samuel, Sadasivan Shaji, David Avellaneda Avellaneda, Bindu Krishnan

    Published 2025-01-01
    “…Photodetectors are indispensable components of many modern light sensing and imaging devices, converting photon energy into processable electrical signal through absorption, carrier generation and extraction using semiconducting thin films with appropriate optoelectronic properties. …”
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  8. 1388

    A structural analysis of ordered Cs3Sb films grown on single crystal graphene and silicon carbide substrates by C. A. Pennington, M. Gaowei, E. M. Echeverria, K. Evans-Lutterodt, A. Galdi, T. Juffmann, S. Karkare, J. Maxson, S. J. van der Molen, P. Saha, J. Smedley, W. G. Stam, R. M. Tromp

    Published 2025-01-01
    “…Alkali antimonides are well established as high efficiency, low intrinsic emittance photocathodes for accelerators and photon detectors. However, conventionally grown alkali antimonide films are polycrystalline with surface disorder and roughness that can limit achievable beam brightness. …”
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  9. 1389

    Thermal deformation compensation scheme to the sub-nanometre level of a piezoelectric offset mirror for MHz repetition rate free-electron laser by Baoning Sun, Qinming Li, Chuan Yang, Kai Hu, Zhongmin Xu, Xiaohao Dong, Weiqing Zhang, Xueming Yang

    Published 2025-01-01
    “…Such deformation degrades the characteristics of the reflected photon beam, leading to focal spot aberrations and wavefront distortions that fail to meet experimental requirements. …”
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  10. 1390

    First-principles investigation of half-metallic CaTGe2O6 (T = Mn, Fe, Co) clinopyroxenes: Potential for spintronics and optoelectronics applications by Tasmi Akter, Jahirul Islam, Kamal Hossain, Rabeya Akter Rabu

    Published 2025-01-01
    “…Refractive indices and dielectric functions of these structures ensure the transparency of CaTGe2O6 (T = Mn, Fe, Co) clinopyroxenes around 28.5 eV photon energy. These structures possess the highest reflectivity and absorption coefficients in the UV region. …”
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  11. 1391

    Approaching maximum resolution in structured illumination microscopy via accurate noise modeling by Ayush Saurabh, Peter T. Brown, J. Shepard Bryan IV, Zachary R. Fox, Rory Kruithoff, Cristopher Thompson, Comert Kural, Douglas P. Shepherd, Steve Pressé

    Published 2025-01-01
    “…Abstract Biological images captured by microscopes are characterized by heterogeneous signal-to-noise ratios (SNRs) due to spatially varying photon emission across the field of view convoluted with camera noise. …”
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  12. 1392

    Nighttime Blue Lighting and Downward Airflow to Manage Tipburn in Indoor Farm Lettuce by John Ertle, Chieri Kubota

    Published 2025-02-01
    “…Dim light of blue (B100) or blue/red (B80R20) were applied at a photosynthetic photon flux density of 30 µmol·m−2·s−1 to ‘Klee’ and ‘Rex’ lettuce plants during the nighttime for the final 14 days of the 28 days of growth after transplanting. …”
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  13. 1393

    Microclimates growing and watering volumes influences the physiological traits of chili pepper cultivars in combating abiotic stress by Farhan Ahmad, Kusumiyati Kusumiyati, Mochamad Arief Soleh, Muhammad Rabnawaz Khan, Ristina Siti Sundari

    Published 2025-02-01
    “…All three factors significantly affected the photosynthetic rate, with the greenhouse showing the highest rate. The photosynthetic photon flux density (PPFD) was likewise highest in the greenhouse. …”
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  14. 1394

    ET-1 Plasma Levels, Aqueous Flare, and Choroidal Thickness in Patients with Retinitis Pigmentosa by Ernesto Strobbe, Mauro Cellini, Michela Fresina, Emilio C. Campos

    Published 2015-01-01
    “…Higher aqueous flare values were also demonstrated in RP compared to controls: in detail, 10.51±3.97 versus 5.66±1.29 photon counts/ms, P<0.0001. Spearman’s correlation test highlighted that the increase of ET-1 plasma levels was related with the decrease of choroidal thickness (r=-0.702; P<0.023) and the increase of aqueous flare (r=0.580; P<0.007). …”
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  15. 1395

    Narrow Linewidth All-Optical Microwave Oscillator Based on Torsional Radial Acoustic Modes of Single-Mode Fiber by Wen Wang, Wenjun He, Xinyue Fang, Yi Liu, Yajun You, Mingxing Li, Lei Yu, Qing Yan, Yafei Hou, Jian He, Xiujian Chou

    Published 2025-01-01
    “…By combining the sub ring cavity with the main ring cavity and utilizing the Vernier effect, the TR<sub>2,7</sub> mode microwave photonic single longitudinal mode (SLM) output can be ensured. …”
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  16. 1396

    Imaging the large‐scale and cellular response to focal traumatic brain injury in mouse neocortex by Yelena Bibineyshvili, Thomas J. Vajtay, Shiva Salsabilian, Nicholas Fliss, Aastha Suvarnakar, Jennifer Fang, Shavonne Teng, Janet Alder, Laleh Najafizadeh, David J. Margolis

    Published 2025-02-01
    “…Correspondingly, two‐photon calcium imaging in the primary somatosensory cortex (S1) found strong activation of neuropil and neuronal populations during the CCI‐induced travelling wave. …”
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  17. 1397

    Fully Inkjet-Printed Flexible Graphene–Prussian Blue Platform for Electrochemical Biosensing by Željka Boček, Marko Zubak, Petar Kassal

    Published 2025-01-01
    “…The graphene electrode was inkjet-printed on a flexible polyimide substrate and then thermally and photonically treated with intense pulsed light, followed by inkjet printing of a PB nanoparticle suspension. …”
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  18. 1398

    Application and Evaluation of [Tc]-Labeled Peptide Nucleic Acid Targeting in Breast Cancer Imaging by Yaqun Jiang MD, Yongkang Gai PhD, Yu Long MD, Qingyao Liu PhD, Chunbao Liu MD, PhD, Yongxue Zhang MD, Xiaoli Lan MD, PhD

    Published 2020-06-01
    “…The relative expression of miR-155 in MCF-7 cells and tumors was higher than that in MDA-MB-231 cells and tumors. Single-photon emission computed tomography (SPECT) scan showed that radioactivity mainly accumulated in kidney. …”
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  19. 1399

    Aqueous foams in microgravity, measuring bubble sizes by Pasquet, Marina, Galvani, Nicolo, Pitois, Olivier, Cohen-Addad, Sylvie, Höhler, Reinhard, Chieco, Anthony T., Dillavou, Sam, Hanlan, Jesse M., Durian, Douglas J., Rio, Emmanuelle, Salonen, Anniina, Langevin, Dominique

    Published 2023-05-01
    “…DTS only allows the determination of an average bubble radius which is proportional to the photon transport mean free path $\ell ^*$. The relation between the measured diffuse transmitted light intensity and $\ell ^*$ previously derived for slab-shaped samples of infinite lateral extent does not apply to the cuboid geometry of the cells used in the microgravity experiment. …”
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  20. 1400

    A review of quantum communication and information networks with advanced cryptographic applications using machine learning, deep learning techniques by R. Ramya, P. Kumar, D. Dhanasekaran, R. Satheesh Kumar, S. Amithesh Sharavan

    Published 2025-03-01
    “…Quantum memory enables storage and retrieval of quantum information, while quantum entanglement generators generate entangled photon pairs. Artificial intelligence and machine learning have significantly improved the efficacy and security of quantum communication. …”
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