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    First-principles investigation of Ra doping effects on structural, electronic, and optical properties of BaTiO3 perovskite for solar cell applications by Sonia Chahar, Krishna Kumar Mishra, Rajnish Sharma

    Published 2025-01-01
    “…This study investigates the properties of radium-doped barium titanate (BaTiO _3 ). Using the generalized gradient approximation (GGA) based on the Perdew–Burke–Ernzerhof (PBE) approach, the bandgap energies of pure BaTiO _3 (indirect band 1.61691 eV) and RaTiO _3 (direct band 1.63612 eV) were determined. …”
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    Ultrabroadband near-infrared emission profiling in multicore optical fibers doped with Er3+ and Yb3+/Tm3+/Ho3+ ions by Jakub Markiewicz, Marcin Kochanowicz, Tomasz Ragiń, Piotr Miluski, Wojciech A. Pisarski, Joanna Pisarska, Marta Kuwik, Dominik Dorosz, Martin Leich, Matthias Jäger

    Published 2025-02-01
    “…Based on our previous work with barium gallo-germanate glasses and fibers, the 4 and 11-core fiber structures, each containing core glasses doped with Er3+ and Yb3+/Tm3+/Ho3+, were developed. …”
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  18. 358

    Machine learning optimized design of THz piezoelectric perovskite-based biosensor for the detection of formalin in aqueous environments by Jacob Wekalao, Shobhit K. Patel, Om Prakash Kumar, Fahad Ahmed Al-zahrani

    Published 2025-02-01
    “…The sensor architecture operates within the terahertz spectral region and incorporates an advanced nanomaterial composite system comprising black phosphorus, gold nanostructures, graphene, and barium titanate to maximize detection sensitivity and operational performance metrics. …”
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    La borrasca Filomena: características y estimación de daños en el arbolado de Madrid mediante imágenes de satélite by María Eugenia Pérez González, José María García Alvarado, María del Pilar García Rodríguez

    Published 2022-02-01
    “…El impacto en el arbolado, medido a través de imágenes de cambios en el NDVI, ha afectado al 11 % de la cobertura vegetal invernal del municipio, con daños muy notables en Pinus pinea, P. halepensis y Quercus Ilex, tanto del viario urbano, como de los múltiples parques, jardines y espacios forestales de la ciudad. …”
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