Main Faculty Curriculum In-Depth Interview

Faculty of the Department of Electronic Systems Engineering, ERICA

Professor Hai-Won Yang

 

Email :

hwyang@hanyang.ac.kr  

 

Homepage:

 

http://aicon.hanyang.ac.kr

Professor Hai-Won Yang received his B.S. degree from Seoul National University, and his Ph. D. in Engineering from Kyoto University in 1982.  Since joining Hanyang University in 1986, he has been teaching various courses, such as Control Engineering and Linear System Theory & Design. His research interests include Adaptive Nonlinear Control and Fussy & Neural Network System.

Professor Yang had been a Dean of Engineering Science College, ERICA campus during 2001-2002.  He also participated in academic association, such as KIEE (The Korean Institute of Electrical Engineers) and IBS Korea(Intelligent Building Society of Korea).

Selected Publications :

- "Robust Adaptive Control of Nonlinear Output Feedback Systems under Disturbance with Unknown Bounds", ICCAS 2001, 2001.10

Professor Joonhong Lim

 

Email :

jhlim@hanyang.ac.kr

 

Homepage:

 

http://aser.hanyang.ac.kr

Professor Joonhong Lim received his B.S. degree from Seoul National University, M.S in KAIST, and  Ph. D. from the University of Iowa in 1986. He has been a professor of the Department of Electronic Systems Engineering from 1989 to present. He was also an assistant professor for the Hankuk Aviation University from 1981 to 1988, and was a visiting professor for the University of California at Berkeley from 1996 to 1997, and the University of Iowa from 2005 to 2006. His research interests include Control Theory and Control Applications, Control Devices and Instruments (Power Electronics), Intelligent Systems (Chaotic Systems), Manufacturing Systems, Robotics and Applications and Information and Networking.

Professor Jayoon Koo

 

Email :

koojy@hanyang.ac.kr

 

Homepage:

 

http://smdt.hanyang.ac.kr

Professor Jayoon Koo received B.S. degree from Seoul National University in 1975, M.S. from the ENSEEIHT in 1980 and the Ph. D. from the ENSIEG in 1984 all in electrical engineering in France.  After his Post Doctorate period at the R&D Center of Electricity of France in France, he was invited by MOST (Minister of Science  & Technology) to work at KIST for three years before joining the faculty at Hanyang University in 1988.

Directing Smart Measurement & Diagnosis Technology Laboratory, his research focuses on HV Insulation of power apparatus, including design and fabrication of diverse sensors detecting PD and systems, with a special emphasis on the use of PD diagnosis.

The General Chairman of ISH 2013, the recipient of CIGRE Distinguished member Award in 2004, Professor Koo has served on CIGRE SC B1 (1988-2000) and SC D1(2000-2008) as the Korean delegate, The chairman of CIGRE-AORC (2004-2006) and Administrative council member since 2004.  He has participated as a steering committee member for numerous international conferences in the field of Power technology such as ACED, Jicable, CMD, and government committees.

Currently, he has been charging “The center for Electro-Fusion Technology”, established in 2003 under the financial support by Ministry of Knowledge and Economy, Korea and serving the Board Committee of LS Cable since 1999 till now.

Selected Publications :

- “Investigation of Partial Discharge Phenomena in HTS Transformer Adopting Different Type sensors”, in Proc.  International Symposium on Superconductivity, Tsukuba, Japan, November 2009.

- “Measurement of Propagation Velocity of the Electromagnetic wave Produced by Partial discharge in a Gas-insulated Switchgear”, Intelec 09-31st, Incheon, Korea, October 2009.

- “An Application of Novel; Partial Discharge Pattern Analysis System Using Pulse Analysis Map”, Cigre session, Paris, France, August 2008.

- “Pulse Analysis Algorithms for Distinguishing Discharge Sources using Different Types of Sensors” IEEJ Trans. On Fundamentals and Materials, Vol.128, No.5, May 2008.

- “Design Procedure and Operation Experience of Data Acquisition and Control System for 22.0kV underground HTS Power Cable", Journal of Physical C-Superconductivity and Its Applications, February 2007.

Professor Hee-Jun Kim

 

Email :

hjkim@hanyang.ac.kr

 

Homepage:

 

http://apeclab.hanyang.ac.kr

Professor Hee-Jun Kim teaches Electronic Circuits at the College of Engineering Science of Hanyang University.  He received B.A. (1976) and M.S. (1978) in Electronic Engineering from Hanyang University, and Ph. D. (1986) in Electronic Engineering from Kyushu University, Japan.  Before joining the Hanyang faculty in 1987, Professor Kim had been on the faculty of Engineering of Kyushu University as assistant professor.

Professor Kim has taught various courses such as Electronic Circuit Design, Power Electronics, and Analog Circuit Design.

Professor Kim, a leading authority on switching power conversion systems, has authored 3 books; [Switched-Mode Power Supply] (1993), [Basic Design of Switching Power Supply] (2002), [Electronic Circuits] (2008).  All of them have played an important role in education of electronic engineering in Korea.

He has also authored more than 100 articles in international academic journals such as 'IEEE Trans. on Industrial Electronics', 'IEEE Trans. on Power Electronics', 'IEEE Trans. on Circuit and System', KIEE Journal, KITE Journal.  His research interests include switch-mode power conversion system, high frequency DC-DC converters, analog circuits processing.

Selected Publications :

- "An Integrated LTCC Inductor Embedding NiZn Ferrite," IEEE Trnas. on Magnetics, Vol.42, No10, Oct, 2006

- "Pulsewidth Modulation Circuits Using CMOS OTAs,"IEEE Trnas. on Circuit and Systems, Vol.54, No9, Sept, 2007

- “Dimming Control Characteristics of Electrodeless Fluorescent lamps," IEEE Trnas. on Industrial Electronics, Vol.56, No1, Jan, 2009.

Professor Taek-Lyul Song

 

Email :

tsong@hanyang.ac.kr

 

Homepage:

 

http://gnc.hanyang.ac.kr

 

Professor Taek-Lyul Song teaches control theory and statistics at Hanyang University.  He received a B.A. (1974) form Seoul University, an M.S. and a Ph.D. (1983) in Aerospace Engineering from University of Texas at Austin.  Before joining the Hanyang faculty in 1995, Professor Song had been on Agency for Defense Development as a Principal Researcher.

Professor Song‘s major research interests lie in target tracking which use information from IR or RF sensors for target detection, target tracking, data association and target motion analysis.  Professor Song also developed MGEFK, which is a nonlinear-filter to be used in target motion analysis for bearing-only measurement systems, and data association algorithms, such as MPDA and HPDA.

Professor Song authored about 40 articles in journals and won a number of prizes, such as Best Paper Award at International Conference on Mechatronics and Information Technology (SPIE) and Distinguished Paper Award at Korea Institute of Military Science and Technology.

Selected Publications :

- "A stochastic analysis of a modified gain extended Kalman filter with applications to estimation with bearings only measurements," IEEE Trans. on Automatic Control, Oct. 1985

- "Target adaptive guidance for passive homing missiles", IEEE Transactions on Aerospace and Electronic Systems 33 (1), 1997

- "Impact angle control for planar engagements", IEEE Transactions on Aerospace and Electronic Systems 35 (4), 1999

- "A probabilistic nearest neighbor filter algorithm for m validated measurements", IEEE Transactions on Signal Processing 54 (7), 2006

- "Image tracking algorithm using template matching and PSNF-m", International Journal of Control, Automation and Systems, 2008

- "A Probabilistic Strongest Neighbor Filter Algorithm for m Validated Measurements", IEEE Transactions  on  Aerospace and Electronic  Systems, 45 (2), 2009

Professor Dong-Jin Lim

 

Email :

limdj@hanyang.ac.kr

 

Homepage :

 

http://limdj.com  http://ccrs.hanyang.ac.kr/

Professor Dong-Jin Lim received his B.S. and M.S. degrees in Electrical Engineering from Seoul National University, Korea, in 1979 and 1981, respectively.  In 1988, he received a Ph.D. in Electrical and Computer Engineering from the University of Iowa, U.S.A.

From 1988 to 1991, he was a Research Engineer at the Research Institute of Science and Technology, Korea.  Since 1991, he has been with the School of Electrical Engineering and Computer Science of Hanyang University, ERICA.

He authored "Control System Engineering" in Korean.  He also authored many research papers in the field of control systems and embedded software.  He had developed many control software for industrial control systems and embedded software for commercial products.

He had been involved in Korea Electric Power Industry Code for many years, and particularly served as a chairman of Instrumentation and Control committee from 2006 to 2008.

Selected Publications :

- "A Laboratory Course in Real-Time Software for the Control of Dynamic Control," IEEE Trans. on Education, Vol. 49, No. 3, pp. 346-354, 2006.

- "A Study on the Development of Embedded System Software for Ubiquitous Sensor Networks using UML," 8th IFAC FeT', 2009.

Professor Byung-Il Kwon

 

Email :

bikwon@hanyang.ac.kr

 

Homepage:

 

http://elecma.hanyang.ac.kr

Professor Byung-Il Kwon teaches electronic systems engineering at the College of Electric Engineering and Computer Science, Hanyang University.  He received his B.S. and M.S. in electrical engineering from Hanyang University in 1981 and 1983 respectively.  He received Ph.D. in electrical engineering, in 1989 from Tokyo University in Japan.  Since 1991, he has been at Hanyang University, where he is currently a professor in the Department of Electric engineering and computer science.  Before joining the Hanyang faculty in 1991, he was on the faculty of the Unversity of Waseda, Japan, and worked with TOSHIBA System laboratory and Institute of Machinery and Materials magnetic train Business.

Professor Kwon’s research interests include the design and control of electric machines for digital appliance, robot, automobile, and wind turbine.  For the past several decades, he has been investigating electric machine based on the equivalent circuit and the finite element method.  He has been involved in the simulation, design and control.  He has published over 70 journal papers, and received three Korea patents on this technology.

Professor Kwon is a member of the Institute of Electrical and Electronic Engineers (IEEE), the Korean Institute of Electrical Engineers (KIEE), and the Institute of Electrical Engineers of Japan (IEEJ).  He was Chairman of the Editorial Committee of the KIEE.

He was awarded the Poster Presentation award of the ICEMS2009 (KIEE, IEEJ, CES), and the Outstanding Paper Award of the ICEMS 2007 and the Spring Conference of the KIEE 2008.

Selected Publications :

- "A Study on Optimal Pole Design of Spoke type IPMSM with Concentrated Winding for Reducing the Torque Ripple by Experiment Design Method", IEEE Trans. on Magnetics, Vol.45, No.10, Page(s):4712-4715(Oct.), 2009

- "Optimal rotor design for reducing the partial demagnetization effect and cogging torque in spoke type PM motor", Journal of Applied Physics, Vol.105, No.7F123(Apr.), 2009

- "Exciter Design and Characteristic Analysis of a Written-Pole Motor", IEEE Trans. on Magnetics, Vol.45, No.3, Page(s):1768-1771(Mar.), 2009

- Optimization of novel flux barrier in interior permanent magnet-type brushless dc motor based on modified Taguchi method", Journal of Applied Physics, Vol. 105, No. 07F106(Feb.), 2009

- Influence of Space Harmonics on Starting Perfomance of a Single-Phase Line Start Permanent-Magnet Motor", IEEE Trans. on Magnetics, Vol.44, No. 12(Dec.), 2008

Professor Seung-Ho Hong

 

Email :

shhong@hanyang.ac.kr

 

Homepage:

 

http://fieldbus.hanyang.ac.kr

Professor Seung-Ho Hong is a director of the Ubiquitous Sensor Networks Research Center, a subsidiary of GRRC (Gyeounggi Regional Research Center) program.  He received a B.S. degree from Yonsei University, in 1982.  He received an M.S. from Texas Tech University, Lubbock, in 1985 and a Ph.D. from the Pennsylvania State University, University Park, in 1989.

He has authored more than 50 papers in many leading academic journals.  He also published more than 80 articles in many international academic conferences.

Professor Hong works in the areas of ubiquitous sensor networks, fieldbuses and industrial communication networks, building and home network systems, and networked automation and control systems.  He is also heavily involved in the research and development of wireless industrial networks and wireless sensor network based AMI/DR in smart grid.

Professor Hong is actively involved in international standardization activities, and presently the chairman of Korea national committee of IEC TC65 (Industrial Process Measurement, Control and Automation) and ISO TC184 SC5 (Architectures, communications and integration frameworks).

Selected Publications :

- "Experimental Case Study of a BACnet-Based Lighting Control System",IEEE Trans. on Automationscience and Engineering, Vol. 6, No. 2, pp.322-333, 2009.04.

- "Transmission of a Scheduled Message using a Foundation Fieldbus Protocol", IEEE Trans. on Instrument and Measurement, Vol. 57, No. 2, pp.268-275, 2008. 02.

- "Experimental Evaluation of a Bandwidth Allication Scheme for Foundation Fieldbus", IEEE Trans. on Instrument and Measurement, Vol.52, No.12, pp.1787-1791, 2003.12.

- "Implementation of a Bandwidth Allocation Scheme in a Token-Passing Fieldbus Network", IEEE Trans. on Instrument and Measurement, Vol.51, No 2, pp.246-251, 2002.04.

Professor Byung-Ju Yi

 

Email :

bj@hanyang.ac.kr

 

Homepage:

 

http://robotics.hanyang.ac.kr

Professor Byung-Ju Yi received his B.A. (1942) from Hanyang University, his M.S. (1986) and Ph.D. (1991) in Mechanical Engineering from the University of Texas, Austin.  Before joining the Hanyang faculty in 1995, Professor Yi had been on the faculty of Korea Institute of Technology and Education as Assistant Professor.

Professor Yi has taught various courses such as Robotics, Linear Algebra, System Modeling and Analysis, Engineering Mathematics, Advanced Robotics, Multi-body Dynamics, Dynamics, Mathematics for Robotics, and Computer Integrated Surgery.

Professor Yi, a world-wide leading authority on mechanism theory and design, is currently focusing on Surgical Robot, Pipeline Robots, and Ubiquitous Robot and Its Applications.  He has published 50 journal papers including IEEE Transaction of Robotics, 50 domestic journal papers, and 160 international conference papers.

He has served Associate Editor for IEEE Transaction on Robotics.  Currently, he is working as a director in the field of Medical robot of KROS (Korean Robot Society) and KMRS (Korean Medical Robot Society).  He also has served as the co-program chair of 2007 IEEE Conference on Mechatronics and Automation, and general chair of 2009 Ubiquitous Robots and Ambient Intelligence.

Selected Publications :

- "The Kinematics for Redundantly Actuated Omni-directional Mobile Robots," Journal of Robotic Systems, Vol. 19, No. 6, pp. 255-267.(2002)

- Design and Experiment of a 3DOF Parallel Micro-Mechanism Utilizing Flexure Hinges,” IEEE Trans. on Robotics & Automation. Vol. 19, No. 4, pp. 604-612.(2003)

- Performance Analysis of Sawing Task Based on Impulse Measure and Geometry; Dual Arm Approach,” IEEE Trans. on Robotics. Vol. 21. No. 6. pp. 1230-1240.(2005)

Professor Jin-Seok Park

 

Email :

jinsp@hanyang.ac.kr

 

Homepage:

 

http://tfdonlinepowers.com

Professor Jin-Seok Park received his B.S. (1985), M.S. (1987), and Ph.D. (1991) in Electrical Engineering from Seoul National University.  He has worked at Cambridge University (U.K.) for two years (1993-1995) as a Research Fellow.  He has been on the faculty at the Department of Electronic Systems Engineering, ERICA, Hanyang University since 1995.

Professor Park has worked as a vice president at the Regional Research Center (RRC, 1997-2005, supported by the Ministry of Education and Science Technology) entitled "Center for Electronic Materials and Components" and has joined at the BK21 Core Project since 2006.  He is working as a regular member of many international academic institutes, including American Society of Applied Physics, IEEE, and Information Displays.  His main research interests include nano- and thin film-based materials and their device applications including advanced nano-stuctured materials (such as carbon nanotubes) for electronic and medical applications and oxide-based compound thin films for flat panel displays, light emitting diodes, and solar cells.  He has received the Best Paper Awards at the international conference of Surface and Coatings Technology (1994) and at the Koran Institute of Electrical Engineering (1996).  He has authored more than 60 SCI papers and more than 80 domestic papers.  He has also presented many invited papers and more than 100 articles in the international conferences.

Selected Publications :

- "Photoresponse characteristics of n-type tetrahedral amorphous carbon/p-type Si heterojunction diodes", Applied Physics Letters, Vol.64, No.17, p.2297, 1994.

- "Relationships Between Material Properties of Piezo-Electric Thin Films and Device Characteristics of Film Bulk Acoustic Resonators", Thin Solid Films, Vol.516, No.2-4, p.475, 2007.

- "Field-emission properties of carbon nanotubes grown on a submicron-sized tungsten tip in terms of various buffer layers", Diamond and Related Materials, Vol.17, p.1826, 2008.

Professor Youngjin Choi

 

Email :

cyj@hanyang.ac.kr

 

Homepage:

 

http://humanoid.hanyang.ac.kr

Professor Youngjin Choi teaches robotics at the College of Engineering Science of Hanyang University.  He received B.A. (1994) from Hanyang University, M.S. (1996) and Ph. D. (2002) in Mechanical Engineering from POSTECH.  Before joining the Hanyang faculty in 2005, Professor Choi had been Senior Scientist of KIST.

Professor Choi has taught various courses such as Signals and Systems, Digital Logic Design, Theory of Robot Control, Biomedical Signal Processing, Embedded System Design.

Professor Choi is the author or co-author of 2 books. His book, [PID Trajectory Tracking Control for Mechanical Systems](Springer, 2004), has played a key role in robot control field.

He has also authored more than 30 articles in academic journals such as IEEE Transactions on Automatic Control, IEEE Transactions on Robotics.  His research interests include theory of robot control, rehabilitation robotics, bio-robotics.

Selected Publications :

- "Posture/Walking Control of Humanoid Robot based on the Kinematic Resolution of CoM Jacobian with Embedded Motion", IEEE Trans. on Robotics, 23(6), 2007.

- New Expressions of 2 X 2 Block Matrix Inversion and Their Application”, IEEE Trans. on Automatic Control, 54(11), 2009.

Professor Songjun Lee

 

Email :

lsj@hanyang.ac.kr

Professor Songjun Lee teaches computer architecture and operating system at the Department of Electronic Systems Engineering of Hanyang University.  He received B.S. (1994) and M.S. (1996) in Electronics, and Mechatronics Engineering from Hanyang University, respectively, and Ph.D. in Electrical and Computer Engineering from the University of Texas, Austin.  Before joining the Hanyang faculty in 2005, Professor Lee had worked at the Telecommunication R&D Center, Samsung Electronics Inc. as a senior engineer, and developed the technologies for mobile devices of next generation.  

Professor Lee has taught various courses such as Data Structure and Algorithm, Computer Architecture and Operating System, Sensor Application System, and Capstone Design.

He has also authored more than 10 articles in academic journals and proceedings from IEEK, Korea, IEEE, U.S.A., and IEICE, Japan.  His research interests include wireless sensor network for biomedical engineering application, sensor system using electrochemical materials, and fusion system by convergence of information technologies (IT), bio technologies (BT), and nano technologies (NT).

Selected Publications :

- "Energy Efficient Communication using Relationships between Biological Signals for Ubiquitous Health Monitoring," IEICE Transactions on Communications, Vol. E93-B, No.4, (April), 2010

- "A Self-sensing Method for IPMC Actuator," Advances in Science and Technology Vol. 56, 2008

Professor Jung-hyun Kim

 

Email :

junhkim@hanyang.ac.kr

 

Homepage:

 

http://mcslab.hanyang.ac.kr

Professor Jung-hyun Kim teaches electronics engineering at division of electrical and computer science, Hanyang University, and received his Ph. D. at Seoul National University.  Before joining Hanyang University, he worked for WavICs co., LTD, Agilent Technologies Wireless Semiconductor Division(WSD) co., LTD, Avago Technologies WSD Seoul co., LTD as a director of design division.

Professor Kim has published about 40 articles to several domestic and international journals in the field of Microwave, and especially, owns original technologies as a  technical market leader in field of a power amplifier from 2nd generation to next 4th generation wireless handset application.  Accordingly, he has several patents (domestic: 10ea, international: 30ea). Since Professor Kim was recognized as one of the best engineers by showing superb research abilities, he received the IR52 Jangyoungsil Award from the Ministry of science, October, 2004.

He is currently working as a judge panel and a advisory panel for “IEEE Trans. on Microwave Theory and Techniques”, “IEEE Microwave and Wireless Components Letters”, and “IEEK RFIC Research Society”.

Selected Publications :

- "A Highly-Integrated Doherty Amplifier for CDMA Handset Applications using Active Phase Splitter" Junghyun Kim, Seongjun Bae, Joomin Jeong, Jooyoung Jeon, and Youngwoo Kwon, IEEE Microwave and Wireless Component Letters Vol. 15, No. 5, pp.333-335, May. 2005

- “Intermodulation Analysis of Dual-Gate FET Mixers” Junghyun Kim and Youngwoo Kwon, IEEE Trans. on Microwave Theory and Techniques vol.50, No. 6, pp. 1544-1555, Jun. 2002

- "High-Performance V-band Cascode HEMT Mixer and Downconverter Module" Junghyun Kim, Moonsuk Jeon, Dongki Kim, Jinho Jeong, and Youngwoo Kwon, IEEE Trans. on Microwave Theory and Techniques vol. 51, No. 3, pp. 805-810, Mar. 2003

- "Helix on Pad-Type Ultra Small-Size Power Amplifiers  for  WCDMA Handset Applications" Changhyun Yoo, Unha Kim, Youngwoo Kwon, and  Junghyun Kim, IEEE Microwave and Wireless Component Letters vol.19, No. 12, pp. 825-827, Dec. 2009

Professor Bang-Wook Lee

 

Email : bangwook@hanyang.ac.kr

 

Professor Bang-Wook Lee received B.S. degree from Hanyang University in 1991, his M.S. and Ph. D. from Hanyang University in 1993, 1998, respectively.  He worked for LS Industrial Systems from 1998 to 2008 as a senior research engineer and project manager.  Professor Lee joined the faculty at Hanyang University in 1998.

His main research topics are the development and applications of superconducting electric devices, including super-conducting fault current limiters and superconducting transformers.  He has been focusing on the design and analysis of smart grid and DC micro-grid distribution networks.

Selected Publications :

- Hybrid Superconducting Fault Current Limiter of the First Half Cycle Non-Limiting Type“ IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2009

- A Compact Cryocooling System With Subcooled Liquid Nitrogen for Small HTS Magnets Liquid Nitrogen for Small HTS Magnets” IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2008

- Design and Experiments of Novel Hybrid Type Superconducting Fault Current Limiters Superconducting Fault Current Limiters” IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2008

- "Practical Application Issues of Superconducting Fault Current Limiters for Electric Power Systems Current Limiters for Electric Power Systems" IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2008

Professor Darko Musicki

 

Email :

heydarko@hanyang.ac.kr

 

Homepage:

 

http://darko.musicki

.googlepages.com 

Professor Darko Musicki have received B.A. (1979) and  M.S. (1985) from University of Belgrade in Serbia, Ph.D. (1994) in Electrical Engineering from University of Newcastle in Australia.  Before joining the Hanyang faculty in 2010, Professor Musicki has been on the faculty of University of Melbourne in Australia as Principal Research Fellow.

He is a board of directors of International Society for Information Fusion from 2005 to present, and he had been a president of International Society for Information Fusion (2008).

Professor Musicki has authored more than 20 articles in academic journals (IEEE) such as Journal of Aerospace and Electronic Systems, Journal of Information Fusion, and Journal of Automatic Control.  His research interests are information fusion, including estimation, data association and object tracking.

Selected Publications :

- "Integrated Probabilistic Data Association", IEEE Transactions on Automatic Control, 1994.

- "Joint Integrated Probabilistic Data Association", IEEE Transactions on Aerospace and Electronic Systems, 2004.

- "The Integrated Track Splitting Filter - Efficient Multi-Scan Single Target Tracking in Clutter", IEEE Transactions on Aerospace and Electronic Systems, 2007.

- "Tracking in Clutter Using IMM-IPDA Based Algorithms",


English Editor Team:
Hyeja Im (Graduate Student Editor in Chief): jmarshall@hanyang.ac.kr
Eunkyoung Lee (Graduate Student Editor): mint11010@hanyang.ac.kr
Gileun Lee (Graduate Student Editor): leegiraf@hanyang.ac.kr
Dongjin Lee (Student Editor / Photographer): kappa85@hanyang.ac.kr