Yun-Kyu An, Keun-Young Jang and Soonkyu Hwang, “Concrete Crack Evaluation through Hybrid Image Scanning”, 2017 World Congress on Advances in Structural Engineering and Mechanics (ASEM17), Ilsan, Korea, Aug 28 – Sept 01, 2017.

Man Sung Kang and Yun-Kyu An, “Phase Mapping of 3D GPR Signals for Sinkhole Detection in Urban Roads”, The 13^th International Workshop on Advanced Smart Materials and Smart Structures Technology (ANCRiSST 2017), Tokyo, Japan, July 22-23, 2017.

Keun-Young Jang, Soonkyu Hwang, Jiho Park and Yun-Kyu An, “Continuous-wave Laser Thermography for Concrete Crack Evaluation under Moving Conditions”, Asia Pacific Conference of the Prognostics and Health Management (PHM) Society 2017, Jeju, Korea, July 12-15, 2017.

Yun-Kyu An and Keun-Young Jang, “Noncontact Concrete Crack Evaluation through Hybrid Image Scanning”, The 2^nd Asian Conference on Quantitative Infrared Thermography (QIRT-Asia 2017), Daejeon, Korea, July 02 –06, 2017.

Yun-Kyu An, Yangsu Kwon and Keun-Young Jang, “Temperature Dependence of Crack-induced Nonlinear Ultrasonic Parameter on a Metallic Structure”, The 5^th Asia Symposium on Engineering and Information (2017 ASEAI), Hanoi, Vietnam, June 20-22, 2017.

Man Sung Kang, Yun-Kyu An, Min Kyoung Kim and Dong Joo Kim “Self-sensing Electrical Impedance of Fiber-reinforced Cementitious Composites (FRCCs) under varying Temperature and Humidity Conditions” KCI 2017, Jeju, Korea, April 10-12, 2017.

Kideok Kim, Man Sung Kang, Yun-Kyu An and Hyunjong Lee “Study on GPR Data Processing using a Basis Pursuit Method” Korean Society of Road Engineers 2017, Seoul, Korea, March 14, 2017.

Soonkyu Hwang, Yun-Kyu An and Hoon Sohn, “Continuous Line Laser Thermography for Damage Imaging of Rotating Wind Turbine Blades”, The 6^th Asia-Pacific Workshop on Structural Health Monitoring (APWSHM 2016), Hobart, Australia, December 07-09, 2016.

Min Kyoung Kim, Seoungik Choi, Hyeon Woo Noh, Dong Joo Kim and Yun-Kyu An, “Effects of Matrix Strength on the Electrical Resistivity of Steel Fiber-reinforced Cementitious Composites under Direct Tension”, KCI 2016, Seolak, Gangwon, Korea, November 02-04, 2016.

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.

Yun-Kyu An and Dong Jun Lee, “Nonlinear Ultrasonic Fatigue Crack Detection Using a Single Piezoelectric Transducer Under Temperature Variation”, SPIE2016’ Smart Structures / NDE, Las Vegas, Nevada, USA, March 20-24, 2016.

Yun-Kyu An, " A Frequency-wavenumber Domain Analysis for Lamb Wave Crack Detection", The 2nd International Conference on Structural Health Monitoring and Integrity Management (ICSHMIM' 14), Nanjing, China, September 25-27, 2014.

Yun-Kyu An, "Laser Scanned Non-propagating Lamb Mode Imaging for Fatigue Crack Evaluation", International Conference on Computational and Experimental Engineering and Science (ICCES'14), Changwon, Korea, June 12-17, 2014.

Yun-Kyu An, Ji Min Kim and Hoon Sohn, “Laser Lock-in Thermography for Damage Detection in a Substructure of Railway Vehicle”, Korean Society for Precision Engineering Symposium 2013, Pusan, Korea, October 30 - November 01, 2013.

Yun-Kyu An and Hoon Sohn, “Wireless Ultrasonic Wavefield Imaging via Laser for Reference-free Damage Detection in an in-situ Bridge”, UKC 2013, New Jersey, USA, August 7-10, 2013.

Ji Min Kim, Yun-Kyu An and Hoon Sohn, “Laser Lock-in Thermography for Crack Evaluation in a T-shape Welded Joint”, 2013 Conference of the ASCE Engineering Mechanics Institute (EMI 2013), Northwestern University, Evanston, IL, USA, August 4-7, 2013.

Hoon Sohn and Yun-Kyu An, “Various Monitoring and Nondestructive Testing Applications: From Micro-scale to Large-scale Structures”, The 9^th International Workshop on Advanced Smart Materials and Smart Structures Technology (ANCRiSST 2013), UNIST, Korea, July 18-21, 2013.

Yun-Kyu An and Hoon Sohn, “Non-propagating Lamb Mode Extraction for Reference-free Crack Detection”, The 11^th International Conference on Structural Safety and Reliability (ICOSSAR 2013), Columbia University, New York, June 16-20, 2013.

Yun-Kyu An and Hoon Sohn, “Laser Ultrasonic Wavefield Imaging for Baseline-free Crack Detection in Plates with Structural Complexities”, International Conference on Computational and Experimental Engineering and Sciences (ICCES’ 13), Seattle, USA, May 24-28, 2013.

Yun-Kyu An, Ji Min Kim and Hoon Sohn, “Laser Lock-in Thermography for Fatigue Crack Detection in an Uncoated Metallic Structure”, SPIE2013’ Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, USA, March 10-14, 2013. Proceedings of SPIE 8692, 86921K, 2013.

Yun-Kyu An, Ji Min Kim and Hoon Sohn, “Laser Lock-in Thermography for Fatigue Crack Detection”, The 4^th Asia-Pacific Workshop on Structural Health Monitoring (APWSHM 2012), Melbourne, Australia, December 05-07, 2012.

Yun-Kyu An, Ji Min Kim and Hoon Sohn, “Surface-breaking Fatigue Crack Evaluation using Laser Scanned Thermography”, The International Symposium on Speed-up, Safety and Service Technology for Railway and Maglev Systems (STECH’ 12), Seoul, Korea, September 17-19, 2012.

Yun-Kyu An, Ho Min Song, Hyun Jun Park, Hoon Sohn and Chung-Bang Yun, “Remote Guided Wave Imaging using Wireless PZT excitation and Laser Vibrometer Sensing for Local Bridge Monitoring”, The 6^th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2012), Villa Erba, Lake Como, Italy, July 08-12, 2012. Proceedings of the 6^th International Conference on Bridge Maintenance, Safety and Management, pp. 731-736.

Yun-Kyu An, Hoon Sohn and Chan Yik Park “Aircraft Wing Structure Monitoring Using an Integrated Impedance and Guided Wave Technique”, The 18^th International Conference on Composite Materials (ICCM 18), Jeju, Korea, August 21-26, 2011.

Yun-Kyu An, Byeong Jin Park and Hoon Sohn “Isolation of Crack-induced Standing Wave Energy from Laser Scanned Ultrasonic Image”, Quantitative Nondestructive Evaluation 2011 (QNDE 2011), University of Vermont, Burlington, VT, July 17-22, 2011. AIP Conference Proceedings, 1430 (31), pp.671-678.

Byeong Jin Park, Yun-Kyu An and Hoon Sohn, “Noncontact Laser Ultrasonic Imaging for Automated Damage Detection”, 2011 COSEIK Annual Conference, Pusan, Korea, April 14-15, 2011.

Yun-Kyu An and Hoon Sohn, “Integrated Impedance and Guided Wave based Damage Detection under Temperature Variation”, SPIE2011’ Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, USA, March 6-10, 2011. Proceedings of SPIE 7981, 79811Q, 2011.

Yun-Kyu An and Hoon Sohn, “A Temperature Compensation Method for Impedance based Damage Detection”, KSCE 2010, Song-do, Incheon, Korea, October 20 – 22, 2010.

Yun-Kyu An, Hyung Jin Lim and Hoon Sohn, “Temperature Independent Delamination Detection using Data Normalization”, The 3^rd International Conference on Multi-Functional Materials and Structures (MFMS 2010), Chonbuk National Univ., Jeonju, Korea, September 14-18, 2010.

Hoon Sohn, Yun-Kyu An, Min Koo Kim, and Hyung Jin Lim, “Application of Online NDT techniques to Decommissioned Bridge Testing”, The 5^th edition of European Workshop on SHM (EWSHM 2010), Sorrento, Italy, June 29-July 02, 2010.

Chang-gil Lee, Yun-Kyu An and Hoon Sohn, “Destructive Bridge Testing for Smart Monitoring Technology Validation”, ASCE 2010, Structural Congress, Orlando, Florida, May 12-15, 2010.

Yun-Kyu An, Min Koo Kim, Hyung Jin Lim and Hoon Sohn, “Validations of reference-free crack detection techniques through a decommissioned bridge test”, 2010 COSEIK Annual Conference, Jeju, Korea, April 8-9, 2010.

Yun-Kyu An and Hoon Sohn, “Experimental Validations of a Baseline-free Crack Detection Technique using Dual-PZTs”, SPIE2010’ Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, USA, March 7-11, 2010. Proceedings of SPIE 7647, 76473R, 2010.

Yun-Kyu An and Hoon Sohn, “Energy-based Instantaneous Crack Detection using Dual-PZT Transducers on a Single Surface”, The 22th KKCNN Symposium on Civil Engineering (KKCNN 2009), Chiangmai, Thailand, October 31-November 2, 2009.

Jeong-Reol Shin, Yun-Kyu An, Hoon Sohn, Chung-Bang Yun and Yu-Seung Kim “Effect of Vehicle Size Adjustment on Vibration of High-speed Railway Bridges”, International Conference on Computational & Experimental Engineering and Sciences, Vol. 13(1), pp.2-3, 2009.

Hoon Sohn, Debaditya Dutta and Yun-Kyu An, “Baseline-Free Damage Detection Through Mode Separation of Lamb Waves Using Self-sensing Piezoelectric Transducers”, The 7^th International Workshop on Structural Health Monitoring (IWSHM 2009), Stanford, CA, USA, Sept 9-11, 2009.

Yun-Kyu An, Hoon Sohn and Debaditya Dutta, “Energy-based Reference-Free Damage Diagnosis using a Single Pair of Collocated PZTs”, The 5^th International Workshop on Advanced Smart Materials and Smart Structures Technology (ANCRiSST 2009), Boston, MA, USA, July 30-31, 2009.

Jeong-Reol Shin, Yun-Kyu An, Hoon Sohn and Chung-Bang Yun, “Vibration Reduction of High-Speed Railway Bridges through Vehicle Size Adjustment: Scaled Model Experiment”, Annual Workshop of Earthquake Engineering Society of Korea, Sept 26, 2008.

Hoon Sohn, Seung Bum Kim, Sang Jun Lee, Debaditya Dutta, Hyung Jun Park, Chang-Gil Lee, Abhinav Agrawal, Chul Min Yeum, Seung Hee Park and Yun-Kyu An, “Transition from Guided Wave based Nondestructive Testing to Structural Health Monitoring”, Quantitative Nondestructive Evaluation 2008 (QNDE 2008), 2008.