Liangfen Du (杜良芬)

Liangfen Du (杜良芬)

Assistant Professor at Hong Kong Polytechnic Univeristy

Research

Research Projects

  1. Principle Investigator: A novel acoustic metagrating barrier for traffic noise reduction. (Environment and Conservation Fund, HKD 760,592.)
  2. Principle Investigator: Outgoing Visit to University College London. (PAIR International Collaboration Scheme, HKD 21,606.9)
  3. Co-Investigator: Upgrading BEEE laboratory facilities to enable advanced researches through improved Safety, Security and Sustainability. (BEEE Safety Research Fund, HKD 1.5M, HKD 0.3M awarded to Dr. DU.)
  4. Principle Investigator: Traffic noise reduction enabling natural ventilation using ultracompact acoustic metagratings. (PolyU (UGC) Start-up Fund for New Recruits, HKD 1,000,000.)
  5. Main investigator: Meta-surface based broadband ultrasonic deep-subwavelength imaging (MOE AcRF Tier 2, SGD 832,128)
  6. Main investigator: Enhancing aural comfort in Singapore Homes through NUS-CDL Smart Green Home Test-Bedding Studies (NUS – CDL joint grant, SGD 298,000)

Publications (Google Scholar)

  1. Johanna Kay Ann Tan, Liangfen Du, Siu-Kit Lau, Optimization of single-channel active noise control performance in a plenum window using the surface impedance approach. The Journal of the Acoustical Society of America, 2024, 155(2): 1570-1582-4287.
  2. Liangfen Du, Zheng Fan. Anomalous refraction of acoustic waves using double layered acoustic gratings. The 52th Inter-Noise, Tokyo, Japan, August 20-23, 2023.
  3. Liangfen Du, Abhishek Saini, Zeqing Sun, Jian Chen, Zheng Fan. Experimental validation of acoustic focusing by a double layered acoustic grating. The 29th International Congress on Sound and Vibration, Prague, the Czech republic, July 09-13, 2023.
  4. Liangfen Du, Abhishek Saini, Zeqing Sun, Jian Chen, Zheng Fan. Acoustic focusing by a double layered acoustic grating. Journal of Sound and Vibration, 2023, 561, 117830.
  5. Alexandru Crivoi, Liangfen Du, Zheng Fan. Ventilated acoustic meta-barrier based on layered Helmholtz resonators. Applied Acoustics, 2023, 205: 109263.
  6. Liangfen Du, Zheng Fan. Acoustic focusing of an acoustic metasurface based on surface coupling approach. The 28th International Congress on Sound and Vibration, Singapore, July 24-28, 2022.
  7. Jian Chen, Zeqing Sun, Liangfen Du, Zheng Fan. Enhanced acoustic imaging with evanescent amplification. The 28th International Congress on Sound and Vibration, Singapore, July 24-28, 2022.
  8. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Prediction of noise reduction of ventilation window by surface impedance approach. Applied Acoustics, 2021, 175: 107851.
  9. Liangfen Du, Siu-Kit Lau, Siew Eang Lee, Martin Konrad Danzer. Experimental study on noise reduction and ventilation performances of sound-proofed ventilation window. Building and Environment, 2020, 181: 107105.
  10. Goran Pavić, Liangfen Du. Modelling of a closed acoustical space by the boundary reconstruction approach. Forum Acusticum 2020 (FA 2020), December 7-11, 2020.
  11. Goran Pavić, Liangfen Du. Experimental identification of surface acoustic impedance. Biennial ISMA conference on Noise and Vibration Engineering (ISMA 2020), KU Leuven, Belgium, September 7-9, 2020.
  12. Liangfen Du, Goran Pavić, Siu-Kit Lau, Siew Eang Lee. Virtual experimental study on sound prediction in multiple connected spaces by surface coupling approach. The 49th Inter-Noise, Soeul, Korea, August 23-26, 2020.
  13. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Experimental study on sound insulation of ventilation partitions. Journal of Acoustics, 2019, 1:1-13.
  14. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Experimental study on sound transmission loss of plenum windows. The Journal of the Acoustical Society of America, 2019, 146(6): EL489-EL495.
  15. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Sound insulation of ventilation partitions with different Configurations. The 48th Inter-Noise, Madrid, Spain, June 16-19, 2019.
  16. Liangfen Du, Goran Pavić. Modelling of multiply connected sound spaces by the surface coupling approach. The Journal of the Acoustical Society of America, 2019, 146(6): 4273-4287.
  17. Goran Pavić, Liangfen Du. Coupling of sound spaces by plane surface harmonics and its application to sound source characterization. Journal of Sound and Vibration, 2019, 440: 1-22.
  18. Liangfen Du, Goran Pavić. Experimental characterization of air-borne sound sources via surface coupling. Applied Acoustics, 2018, 134: 97-109.
  19. Goran Pavić, Liangfen Du. Coupling of sound spaces by the surface impedance approach. The 8th Congress of the Alps Adria Acoustics Association, Zagreb, Croatia, September 20-21, 2018.
  20. Goran Pavić, Liangfen Du. Modelling of multi-connected acoustical spaces by the surface impedance approach. The 45th Inter-Noise, Hamburg, Germany, August 21-24, 2016.
  21. Liangfen Du, Goran Pavić. Experimental demonstration of sound prediction by source characterization. The 44th Inter-Noise, San Francisco, USA, August 9-12, 2015.
  22. Liangfen Du, Goran Pavić. Characterisation of sound sources by plane surface harmonics. Proceeding of Noise and Vibration – Emerging technologies (NOVEM2015), Dubrovnik, Croatia, April 13-15, 2015.
  23. Liangfen Du and Goran Pavić. Acoustical source-receiver interfacing using the patch impedance approach. Conference of French Acoustic, Poitiers, France, April 22-25, 2014. (Oral presentation in French).