Dong-Guk Paeng

Professor of the Ocean System Engineering Department

General Information

Dong-Guk Paeng
Full Name Dong-Guk Paeng (팽동국)
Position Professor
Department Ocean System Engineering
Institution Jeju National University
Email paeng@jejunu.ac.kr
Office Room 5465, Marine Sciences Bldg. 4

Education

  • Ph.D. in Acoustics
    1998-2002
    The Pennsylvania State University (Penn State)
    • Dissertation Title: Cyclic and radial variation of ultrasonic backscatter from flowing porcine blood
  • M.S. in Ocean Engineering
    1995-1997
    Massachusetts Institute of Technology (MIT)
    • Thesis Title: Normal mode acoustic wave scattering considering elastic layers over a half space
  • M.S. in Earth and Marine Sciences
    1991-1993
    Hanyang University
    • Thesis Title: Acoustical characteristics of the eddies in the East Sea of Korea
  • B.S. in Earth and Marine Sciences
    1985-1991
    Hanyang University

Experience

  • Professor in Dept. of Ocean System Engineering
    March 2003 ~ Present
    Jeju National University: Jeju, Korea
    • Taught Introduction of Acoustics, Underwater Acoustics, Electro-Acoustic Transducer, Engineering Mathematics for undergraduate classes in Korean, Biomedical Ultrasound, Acoustic Wave Scattering, Theoretical Acoustics, Acoustics in Fluid Media for graduate classes in English
    • Investigated tissue characterization focused on the ultrasonic backscattering from blood, vessel, and tissue
    • Developed high frequency ultrasonic transducers and its applications using ultrasound backscatter microscopy
  • Associate Research Professor in Radiology and Medical Imaging
    June 2020 ~ May 2022
    University of Virginia: Charlottesville, VA, USA
  • Associate Research Professor in Radiation Oncology
    January 2015 ~ May 2020
    University of Virginia: Charlottesville, VA, USA
    • Investigated the acoustic ray modeling of transcranial focused ultrasound and verified the modeling results with experimental hydrophone measurement using InSightec’s ExAblate Neuro 660 kHz hemispherical transducer
    • Performed the pig experiment to measure the chronic effects of histotripsy on the pig brain tissue
  • Focused Ultrasound Ambassador, Asia
    July 2016 ~ Present
    Focused Ultrasound Foundation (FUSF): Charlottesville, VA, USA
    • Accelerated the research and clinical trials of focused ultrasound in Asian countries
    • Represented focused ultrasound foundation to gather information of FUS development and activities of FUS societies in Asia
  • Richard Merkin Visiting Fellow
    January 2015 ~ June 2016
    Focused Ultrasound Foundation (FUSF): Charlottesville, VA, USA
    • Investigated the effects of thermal dose on the brain tissue for thermal damage using a pig brain model by transcranial high intensity focused ultrasound
    • Accelerated the investigation of chronic effects of histotripsy on the pig brain tissue and its transcranial applications
    • Explored how to localize the cavitation generated by a hemispherical focused ultrasound transducer during transcranial brain treatment
  • Visiting Scholar as a Research Associate
    July 2007 ~ August 2008
    University of Southern California: University Park, CA, USA
    • Investigated ultrasonic imaging of retinal vein occlusion using very high frequency ultrasound
    • Explored therapeutic ultrasound to open retinal vein occlusion in a rabbit model
    • Lens characterization for cataract surgery using high frequency ultrasound backscattering signals
    • Published 3 SCI(E) journal papers, filed an international patent, and applied two NIH grant proposals
  • Research Associate
    August 2002 ~ September 2003
    University of Southern California: University Park, CA, USA
    • Continued to research blood properties using ultrasound
    • Prepared an NIH proposal and several journal papers
  • Research Assistant
    May 1998 ~ August 2002
    The Pennsylvania State University: University Park, PA, USA
    • Investigated hemodynamics and hemorheology by ultrasound in vitro and in vivo focused on the analysis of the Doppler signals and ultrasound backscattered images from flowing blood
    • Performed sensitivity tests for Doppler devices
    • Measured acoustic impedance of coupling gels for transducers
  • Research Assistant
    September 1996 ~ May 1998
    Massachusetts Institute of Technology: Cambridge, MA, USA
    • Corrected the motion of mooring position and analyzed tomographic experimental data of the Gulf Stream
    • Developed normal mode scattering theory and implemented computer programs from a rough bottom with elastic layers, using ocean acoustic models such as OASES, KRAKEN and NMSCAT
  • Researcher
    December 1994 ~ July 1995
    Korea Ocean Research and Development Institute: Ansan, Korea
    • Collected and analyzed ambient noise data of the adjacent seas around the Korean peninsula
  • Researcher
    December 1993 ~ April 1994
    Daewoo Shipbuilding and Machinery Ltd.: KyungNam, Korea
    • Measured and analyzed noise and vibration of newly-made ships for the Noise and Vibration Team in the Design Research Institute
  • Research Assistant
    March 1991 ~ August 1993
    Hanyang University: Ansan, Korea
    • Modeled ocean circulation excited by sea surface winds and data assimilation of wind and CTD data, using oceanographic and ocean acoustic models such as the Cardone model, IFD, the Generic Sonar Model
  • Experimenter
    August 1991 ~ September 1991
    Korea Ocean Research and Development Institute: Ansan, Korea
    • KORDI/USGS Joint survey of manganese nodules on a research vessel in the Central Pacific Ocean
  • Guard
    Korean Navy: Seoul, Korea

Research Interests

  • Underwater Acoustics for Bioacoustics
    • Bioacoustics research on marine mammals, specifically Indo-Pacific Bottlenose Dolphins in Jeju coastal waters.
    • Application of advanced acoustic analysis and machine learning to decode communication signals and behavior.
  • Measuring of Ambient Noise in Coastal Jeju
    • Investigation of various sources of ambient noise in coastal seas and their impact on marine life.
    • Study of underwater sound scattering phenomena for oceanographic monitoring and environmental assessment.
  • Biomedical Ultrasound for Understanding Hemodynamics
    • Non-invasive ultrasound imaging for assessing vascular structures and blood flow dynamics in large arteries.
    • Analysis of red blood cell backscattered signals to understand vascular physiology and diagnose cardiovascular conditions.
  • Therapeutic Ultrasound in Brain Applications
    • Development of novel ultrasound-based treatments for neurological conditions, specifically Alzheimer's disease.
    • Research on using ultrasound to enhance natural defenses and promote neuroregeneration in the brain.

Selected Publications

  • Jeong, I., and Paeng, D.-G. "Circadian and Tidal Changes in Snapping Shrimp (Alpheus brevicristatus) Sound Observed by a Moored Hydrophone in the Coastal Sea of Western Jeju." Applied Sciences, vol. 12, no. 13, p. 6493, 2022.
  • Jin, C., et al. "Semantic segmentation-based whistle extraction of Indo-Pacific Bottlenose Dolphin residing at the coast of Jeju island." Ecological Indicators, vol. 137, p. 108792, 2022.
  • Lee, J., Zaigham, S. B., and Paeng, D.-G. "Shock Wave Characterization Using Different Diameters of an Optoacoustic Carbon Nanotube Composite Transducer." Applied Sciences, vol. 12, no. 14, p. 7300, 2022.
  • Lee, C.-A., and Paeng, D.-G. "Numerical simulation of spatiotemporal red blood cell aggregation under sinusoidal pulsatile flow." Scientific Reports, vol. 11, no. 1, pp. 1-13, 2021.
  • Lee, J., Paeng, D.-G., and Ha, K. "Attenuation of the human skull at broadband frequencies by using a carbon nanotube composite photoacoustic transducer." The Journal of the Acoustical Society of America, vol. 148, no. 3, pp. 1121-1129, 2020.

Awards & Honors

  • 2021-12-11
    • Academic Award, The Korean Society for Biomedical Engineering of Circulatory System
  • 2019-12-07
    • Numerical simulation of red blood cell aggregation according to spatial variation of velocity field induced by elastic tube motion in pulsatile flow (Best Paper Award)
  • 2016-07-13
    • The 26th Science and Technology Excellent Paper Award
  • 2014-11-28
    • Capstone Design Advisor Award
  • 2014-11-14
    • Academic Presentation Award, The Acoustical Society of Korea (Autumn 2014)
  • 2013-12-21
    • Automatic extraction technique of vessel lumen shape in ultrasound cross-sectional images of rat carotid artery bifurcation (Best Paper Award)
  • 2013
    • Best research award, Biomedical Engineering Society for Circulatory Disorder
    • Best Award for the Class Portpolio Competition, Jeju National University
  • 2010-11-12
    • Research Award, Acoustical Society of Korea
  • 2007-07-01
    • Top 100 Scientists 2007, International Biographical Centre, Cambridge, England
  • 2007
    • Marquis Who's Who in Science and Engineering
    • Marquis Who's Who in Asia
  • 2006-10-05
    • Marquis who's who in Asia
  • 2006-08-22
    • Marquis who's who in Science and Engineering 2006-2007
  • 2006
    • Marquis Who's Who in the World
  • 2004-11-12
    • Outstanding Presentation Award in the Acoustical Society of Korea
  • 2004-05-19
    • AFSUMB 2004 JSUM Award
  • 2004-04-21
    • Kenneth T. Simowitz Memorial Award in The Pennsylvania State University
  • 1995 ~ 1998
    • Korean Government Scholarship for Studying Abroad
  • 1995 ~ 1997
    • Hanyang University Scholarship for Studying Abroad
  • February 1991
    • B. S. with honors in College of Natural Sciences in Hanyang University
  • 1985 ~ 1991
    • Hanyang University Scholarship of Tuition and Fee for full academic years

Text books

  • 2020-02-28
    • Kanglyul Ha, Moojoon Kim, Dong-Guk Paeng, The core of acoustic theory, Bookshill (in Korean), 2020, SBN : 9791159712760
  • 2010-05-10
    • Il-Hyoung Cho, Dong-Guk Paeng, Ocean Measurement and Underwater Exploration, Onnuri Publisher, (in Korean), 2010, ISBN 978-89-88271-91-9.

Professional Affiliations

  • 2014 ~ Present
    • Korea Society for Therapeutic Ultrasound
  • 2013 ~ Present
    • Biomedical Engineering Society for Circulatory Disorder, Organizing Committee
  • 2012 ~ Present
    • AFSUMB (Asian Federation Society of Ultrasound in Medicine and Biology), Safety Committee
  • 2011 ~ Present
    • Korean Society of Visualization, Editor
  • 2008 ~ Present
    • IEEE, Member
  • 2001 ~ Present
    • Acoustical Society of Korea, Associate Editor, Fellow
  • 1996 ~ Present
    • Acoustical Society of America, Member