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    Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots by Hugo Rodrigues Dias Filgueiras, James R. Kelly, Pei Xiao, I. F. da Costa, Arismar Cerqueira Sodré

    Published 2019-01-01
    “…Experimental results demonstrate 1.09 GHz bandwidth centered at 24 GHz (4.54% fractional bandwidth), gain up to 14.71 dBi over the operating bandwidth, and only 2.7 dB gain variation in the azimuth plane. The proposed antenna array and its enabling techniques present themselves as promising solutions for mm-wave application, including 5G enhanced mobile broadband (eMBB) communications.…”
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    Mechanical and Durable Performance of Lime-Steel Slag-Coal Gangue Mixtures Prepared by a Uniform Design Method for Pavement Base Applications by Hanlong CUI, Bingyang DENG, Chao WANG, Shenglei FENG, Yapeng ZHANG, Wenqing MENG, Xin LIU, Hao JI

    Published 2025-02-01
    “…Six groups of lime-steel slag-coal gangue mixtures were designed using a uniform design method. The 7 d unconfined compressive strength, 180 d compressive resilience modulus and 180 d splitting tensile strength tests, the freeze-thaw cycles, and the wet and dry cycles were carried out to study the mechanical properties, frost resistance and water stability. …”
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