Dohyun Kim

Created by Dohyun Kim on 2006/09/05 15:00

Dohyun Kim

Ph.D, Electrical Engineering
Post doctoral scholar
Electrical Engineering Department
University of California, Los Angeles

Dohyun Kim was born in Taejeon, Korea, on August 15th, 1974 (Korean equivalent of Independence Day). He was honorably discharged from the 26 months of mandatory military service as a special ROK Army force (KATUSA). He finished an undergraduate education and Master’s degree in Mechanical Engineering Department, Sogang University, Seoul, Korea. His Master’s study focused on control system design for a CNC-machining center and smart material devices. He moved to the United States to study MEMS at Electrical Engineering Department, at Uinversity of California, Los Angeles. His research interest is now in electrochemical microsensors for environmental and biological applications. His personal interests include playing basket ball, jogging, hiking, listening to classical piano and vocal pieces, singing in choir, reading books, and photography.

• Ph.D., Electrical Engineering, University of California, Los Angeles, October 2008

Micromachined Chronocoulometric Nitrate Sensor and Parallel-plate Donnan-dialytic Sample-preparation System Using Anion-exchange Membrane

• M.S., Mechanical Engineering, Sogang University, Seoul, Korea, February 2001

Research on Auto Feedrate Control of Milling Processes by Fuzzy Control of Spindle Motor Currents

• B.S., Mechanical Engineering, Sogang University, Seoul, Korea, February 1999

• Research Assistant, Center for Embedded Network Sensing, University of California, Los Angeles, 2002‐present

developing a MEMS nitrate sensor for real‐time ground‐water monitoring. Researched electrochemistry of sensing electrodes. Designed sensing electrodes with optimal SNR. Fabricated sensors on silicon substrate with metallization, polymerization, and deep‐reactive ion etching. Setup bench‐top electroanalyical sensing system. Tested the MEMS nitrate sensor and characterized it. Currently working on integration of nitrate sensor with microfluidics and wireless sensor network.

• Research Assistant, Mechanical Engineering Department, Sogang University, 1999‐2001

Researched a control system that optimizes feedrate by monitoring the spindle‐motor current of a CNC‐milling machine. Developed an auto‐tuning algorithm for two‐axis CNC‐milling‐machine position controller. Designed a Kalman filter that enhances the feed‐motor encoder resolution. Researched and designed a magneto‐rheological‐fluid power‐transmission clutch.

• Teaching Assistant, Electrical Engineering Department, University of California, Los Angeles, 2004

Instructed lab sessions in Micromachining and MEMS Laboratory.

• Teaching Assistant, Mechanical Engineering Department, Sogang University, 1999‐2000

Taught over 100 students for discussion sessions in Advanced Control Systems, and Automatic Control Systems.

• Dohyun Kim, Ira B. Goldberg, Jack. W. Judy, “Microfabricated Electrochemical Nitrate Sensor using Double-potential-step Chronocoulometry”, Sensors and Actuator, B: Chemical,Vol. 135, pp. 618–624, 2009.
• Dohyun Kim, Ira B. Goldberg, and Jack W. Judy, Dohyun Kim, Ira B. Goldberg, and Jack W. Judy, “Chronocoulometric Determination of Nitrate on Silver Electrode and Sodium Hydroxide Electrolyte ”, Analyst, Vol. 132, issue 4, pp. 350-357 (2007). dohyun
• Usob Lee, Do‐hyun Kim, Namkeon Hur and Doyoung Jeon, “Design Analysis and Experimental Evaluation of an MR Fluid Clutch”, Journal of Intelligent Material Systems and Structures, vol. 10, No. 9, Sep. 1999, p. 701~707. (pdf)

• Dohyun Kim, Ira B. Goldberg, and Jack W. Judy, “Micromachined Amperometric Nitrate Sensor with an Anion Permeable Membrane”, the 206th Meeting of The Electrochemical Society, Chemical Sensors VI: Chemical and Biological Sensors and Analytical Methods, Honolulu, Hawaii, Oct. 2004, p. 223‐231. (pdf)
• Dohyun Kim, Ira B. Goldberg, and Jack W. Judy, “Micromachined Amperometric Nitrate Sensor with Integrated Microfluidics”, Hilton Head 2004: A Solid State Sensor, Actuator and Microsystems Workshop, Hilton Head Island, South Carolina, June 2004, p. 97‐98. (pdf)
• Dong‐Uk Seo, Do‐Hyun Kim, and Doyoung Jeon, “Tool Monitoring of a CNC Machining Center Using The Wavelet Transform”, Proceedings of the Korean Society of Precision Engineering Annual Meeting, Oct. 2000, p. 148~152.
• Do‐Hyun Kim and Doyoung Jeon, “Research on the Auto Feedrate Control of Milling Processes by Fuzzy Control of Spindle Motor Currents”, Proceedings of the Korean Society of Mechanical Engineering Annual Meeting, Dynamics and Control, July 2000, p. 396~401.
• Do‐Hyun Kim and Doyoung Jeon, “Research on the Auto Feederate Control of Milling Process by the Fuzzy Control of Motor Currents”, Proceedings of the Korean Society of Precision Engineering Annual Meeting, May 2000, Vol. 2, p. 708~713.

• EE M150L - Introduction to MEMS Laboratory
• EE 250A - MEMS Fabrication
• MAE 281 - Microscience
• MAE 284 - Sensors, Actuators, and Signal Processing
• EE 250B - MEMS Physics and Design
• EE 115A - Analog Electronic Circuits 1
• EE 115B - Analog Electronic Circuits 2
• EE 161 - Electromagnetic Waves
• EE 123A - Quantum Physics
• EE 132A - Communication systems
• CHEM 110A - Physical Chemistry
• ChE C214 - Electrochemical Process & Corrosion
• ChE C216 - Surface and Interface Engineering
• ChE 200 - Statistical Thermodynamics for Engineers

420 Westwood Plaza,14-130 Engineering IV
UCLA Box 159410
Los Angeles, CA 90095-1594
dohyun@ee.ucla.edu
Tel: 310-206-3995, Fax: 309-414-1547