Professor

RESEARCH INTERESTS

• Structural Health Monitoring, Nondestructive Evaluation, Smart Structures, Active Sensing Technologies, Artificial Intelligence
• Laser Ultrasonics, Laser Interferometry, Ultrasonic Wavefield Imaging, Guided Waves, Electromechanical Impedance, Infrared Thermography, MEMS Sensing Technology, Ground Penetrating Radar 
• Structural Dynamics, Vibration/Modal Testing, Advanced Signal/Image Processing, Statistical Pattern Recognition, Theory & Modeling of Ultrasonic Wave Propagation, Machine Learning, Digital Twin

DISSERTATION & THESIS

Yun-Kyu An, “Noncontact Laser Ultrasonic Wavefield Imaging and Laser Lock-in Thermography Techniques for Structural Damage Detection”, Ph.D. Dissertation, Department of Civil and Environmental Engineering, KAIST, Daejeon, Korea, 2013.

Yun-Kyu An, “Enhanced Energy-based Instantaneous Reference-Free Damage Diagnosis using Guided Waves”, M.S. Thesis, Department of Civil and Environmental Engineering, KAIST, Daejeon, Korea, 2009.

EMPLOYMENT HISTORY

AWARD

• Excellent Research Faculty at Sejong University Award (2024): This Excellent Research Faculty at Sejong University Award honors faculty demonstrated outstanding research capabilities and contributed significantly to the development of Sejong University's research field.
• Research Award (2023): Changgil Lee, Myung Soo Kang, Ali Azad and Yun-Kyu An, “Development of a Stress-Free Temperature Estimation Method for Continuous Welded Rail based on Ultrasonic Wave Propagation”, The 16th International Conference and Exhibition, Edinburgh, Scotland, UK, June 13-15, 2023.
  
• Top Cited Paper in Computer-aided Civil and Infrastructure Engineering (2023): Keun Young Jang, Yun-Kyu An, Byung Hyun Kim and Soojin Cho “Automated Crack Evaluation of a High-rise Bridge Pier using a Ring-type Climbing Robot”, Computer-aided Civil and Infrastructure Engineering, Vol. 36, pp. 14-29, 2021.
  
• Best Paper Award (2022): Hyunjin Bae and Yun-Kyu An, “3D Digital Model Damage Mapping Technique for Automated Structural Damage Evaluation of an in-situ Bridge”, KSCE 2022, Pusan, Korea, October 19-21, 2022.
  
• Best Paper Award (2022): Keun Young Jang, Sinzeon Park, Hoon Yoo and Yun-Kyu An, “3D Model-based Automated Damage Diagnosis Technique of Vertical Tunnels using a Vertical Scanning System”, KSCE 2022, Pusan, Korea, October 19-21, 2022.  
  
• First Prize on Idea Competition (2022): Man-Sung Kang and Yun-Kyu An “AI-based GPR Data Analysis for Underground Facility Safety”. This is the first competition supported by KALIS for discovering “Analysis Project using Fusion Data”.
  
• Best Paper Award (2022): Yun-Kyu An, Hyun Jin Bae and Keun Young Jang “Deep Learning-based Crack Evaluation of Bridges using Drone and Climbing Robot”, Journal of The Korean Society for Nondestructive Testing, Vol. 41 (6), pp. 349-357, 2021.
  
• Best Paper Award (2020): Byung-Jun Woo, Yun-Kyu An and Jong Jae Lee, “Computer Vision-based Facility Inspection Technology”, 2020 KSMI Conference, Seoul, Korea, Nov. 19-20, 2020.
  
• SOC Drone Competition (2020): Soonkyu Hwang, Keunyoung Jang, Seyoung Jin, Hoon Sohn, Yun-Kyu An and Jeonghoi Jin awarded the 2nd prize in the drone operation competition for SOC infrastructure inspection.  KSCE 2020 Convention, Oct. 23, 2020.
  
• Best Paper Award (2019): Myung Soo Kang and Yun-Kyu An, “Digital Image Correlation-based Fatigue Crack Evaluation using Statistically Optimized Subset Size”, 2019 COSEIK Annual Conference, Mokpo, Korea, Nov 21-23, 2019.
• Best Paper Award (2019): The following conference paper is awarded as the best paper from KSMI. Hyun Jin Bae, Keun Young Jang and Yun-Kyu An, “Automated Crack Evaluation of a High-rise Bridge Pier using a Climbing Robot”, 2019 KSMI Conference, Gangneung, Korea, April 10-12, 2019.
  
• Co-chair of Asia Region in Early Career Researchers - International Society for Structural Health Monitoring of Intelligent Infrastructure (ECR-ISHMII) (2019~2020): One of two co-chairs in Asia region in Early Career Researchers - International Society for Structural Health Monitoring of Intelligent Infrastructure (ECR-ISHMII). The ECR-divisions have been founded in every region of the world at the same time including Asia, Europe, North America, Australasian and Industry. http://www.ishmii.org/.
• Invited Talk on Smart Construction and Safety Forum at Construction Hall, Seoul, Korea (2018.11.27): This forum is supported by MOLIT, KISC and KICT. The presentation title is “Deep Learning Techniques for Infrastructure Monitoring”. http://www.smartconstsafety.com/main/.
• Young Scientists Award (2017.12.20): This Young Scientists Award from Korean Academy of Science and Technology (KAST) honors promising young scientists under the age of 40 with outstanding research achievements in the fields of natural science and engineering. Every year, a nationwide search is conducted, and only five researchers are awarded this prestigious award that comes with the Presidential Citation and the Incentive Research Reward. This award is similar to the Presidential Early Career Award from US National Science Foundation (PECASE Award). The announcement was broadcast on TV in Korea and appeared in major Korean newspapers.
• Best Paper Award (2016): The following conference paper is awarded as the best paper from KSCE. Soonkyu Hwang, Yun-Kyu An and Hoon Sohn, “Development of a Line Laser Thermal Wave Imaging Technique for Fatigue Crack Inspection in a Steel Member under Dynamic Conditions”, KSCE 2016, Jeju, Korea, October 19-21, 2016.
• Most Cited Paper in Smart Materials & Structures (2015): The journal paper below is selected as the fourth of the 24 most highly cited papers published in 2013 in “Smart Materials and Structures” Journal (IF: 2.449). Yun-Kyu An, Byeongjin Park and Hoon Sohn “Complete Noncontact Laser Ultrasonic Imaging for Automated Crack Visualization in a Plate”, Smart Materials and Structures, Vol. 22(2), 025022, 2013.
• Most Cited Paper in Structural Control & Health Monitoring (2013): The journal paper below is selected as one of the five most highly cited papers published in 2010 in “Structural Control & Health Monitoring” Journal (IF: 1.544). Yun-Kyu An and Hoon Sohn “Instantaneous Crack Detection under Varying Temperature and Static Loading Conditions”, Structural Control & Health Monitoring, Vol. 17(7), pp. 730-741, 2010.

SERVICES & ACTIVITIES

NEW COVERAGES 

• Young Scientists Award (2017.12.20)

• Digital Times about “Instantaneous Crack Inspection Technique of Semiconductors” on December 12, 2013. (In Korean)

• Appointment to “Associate Professor” at Southeast University (Ranking #3 in Civil Engineering), Nanjing, China, October 01, 2013. (In Korean)

• MBN “Korean Scientist” Program on November 26, 2011. (In Korean)

• Field Test for Real Bridge Monitoring, NJ Rt 23 Wayne Bridge, New Jersey, US.