Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Haiqin Duan"'
Autor:
Enshuai Wang, Fei Yang, Xinmin Shen, Haiqin Duan, Xiaonan Zhang, Qin Yin, Wenqiang Peng, Xiaocui Yang, Liu Yang
Publikováno v:
Materials, Vol 15, Iss 10, p 3417 (2022)
An acoustic metamaterial absorber of parallel–connection square Helmholtz resonators is proposed in this study, and its sound absorption coefficients are optimized to reduce the noise for the given conditions in the factory. A two–dimensional equ
Externí odkaz:
https://doaj.org/article/0a55b92eb78f42fe8477691a05519d6a
Autor:
Haiqin Duan, Fei Yang, Xinmin Shen, Qin Yin, Enshuai Wang, Xiaonan Zhang, Xiaocui Yang, Cheng Shen, Wenqiang Peng
Publikováno v:
Materials, Vol 15, Iss 11, p 3882 (2022)
Acoustic metamaterials based on Helmholtz resonance have perfect sound absorption characteristics with the subwavelength size, but the absorption bandwidth is narrow, which limits the practical applications for noise control with broadband. On the ba
Externí odkaz:
https://doaj.org/article/7621495506f742b58838923a7853cbb5
Publikováno v:
Applied Sciences, Vol 10, Iss 6, p 2103 (2020)
Sound absorption performance of polyurethane foam could be improved by adding a prepositive microperforated polymethyl methacrylate panel to form a composite sound-absorbing structure. A theoretical sound absorption model of polyurethane foam and tha
Externí odkaz:
https://doaj.org/article/f78949757962435d821d0c5901f4c155
Publikováno v:
Metals, Vol 10, Iss 3, p 340 (2020)
Porous metal is widely used in the fields of sound absorption and noise reduction, and it is a critical procedure to identify acoustic characteristic parameters and to improve sound absorption performances. Based on the constructed theoretical sound
Externí odkaz:
https://doaj.org/article/be0128fdbea744879a592691b749d70e
Periodic Oscillation of Sediment Transport Influenced by Winter Synoptic Events, Bohai Strait, China
Publikováno v:
Water, Vol 12, Iss 4, p 986 (2020)
Instruments on two bottom-mount platforms deployed in the Bohai Strait during a cruise from January 6–13, 2018 recorded an intense northerly wind event. The responses of hydrodynamic and hydrographical characteristics in Bohai Sea and Yellow Sea to
Externí odkaz:
https://doaj.org/article/57c11d19f65b4767a3d4ea069686773c
Publikováno v:
Applied Sciences, Vol 9, Iss 22, p 4798 (2019)
The composite structure of a microperforated panel and porous metal is a promising sound absorber for industrial noise reduction, sound absorption performance of which can be improved through parameter optimization. A theoretical model is constructed
Externí odkaz:
https://doaj.org/article/3ac5e1c075d247bebde23f1cf933aba9
Autor:
Haiqin Duan, Houjie Wang, Xiao Wu, Changwei Bian, Chenghao Wang, Naishuang Bi, Jingping Xu, Hui Wu
Publikováno v:
Journal of Geophysical Research: Oceans. 124:6927-6941
Publikováno v:
Continental Shelf Research. 244:104763
Autor:
Xiao Wu, Changwei Bian, Haiqin Duan, Houjie Wang, Zhiqiang Liu, Naishuang Bi, Chenghao Wang, Jingping Xu, Courtney K. Harris
Publikováno v:
Journal of Geophysical Research: Oceans. 125
Periodic Oscillation of Sediment Transport Influenced by Winter Synoptic Events, Bohai Strait, China
Publikováno v:
Water, Vol 12, Iss 986, p 986 (2020)
Water
Volume 12
Issue 4
Water
Volume 12
Issue 4
Instruments on two bottom-mount platforms deployed in the Bohai Strait during a cruise from January 6–13, 2018 recorded an intense northerly wind event. The responses of hydrodynamic and hydrographical characteristics in Bohai Sea and Yellow Sea to