Interlayer Parallel Connection of Multiple Helmholtz Resonators for Optional Broadband Low Frequency Sound Absorption. - Yang, Xiaocui; Li, Qiang; Shen, Xinmin; Zhou, Binbin; Wang, Ning; Wang, Enshuai; Zhang, Xiaonan; Shen, Cheng; Wang, Hantian; Jiang, Shunjie (Materials (1996-1944), 2025)