e-mail : choidsATkumoh.ac.kr

 ■ Research Interests

Immersive VR/AR, Haptics, Transparent pressure sensor, 3D Touch sensor, Vibrotactile actuator, Focus-tunable lens  

■ Status

Assistant Professor (2022.3 - Present) at Kumoh National Insitute of Technology

■ Professional Experience

Assistant Professor (2020.9 - 2022. 02) at Semyung University

 ■ Education

Ph.D. (2015.3 - 2020.8) in Interdisciplinary Program in Creative Engineering, Graduate School, Korea University of Technology and Education

Advisor: Prof. Sang-Youn Kim

M.S (2013 - 2015) in Department of Computer Engineering, Korea University of Technology and Education, Republic of Korea

Advisor: Prof. Sang-Youn Kim

B.S (2007 - 2013) in School of Computer Science and Engineering, Korea University of Technology and Education, Republic of Korea 

Advisor: Prof. Sang-Youn Kim 

 ■ Publications

1. Dong-Soo Choi†, Jin Woo Bae†, Seok-Han Lee, Jin Ho Song, Da Wan Kim, Seungmoon Choi, Changhyun Pang*, and Sang-Youn Kim*, Emotion-interactive empathetic transparent skin cushion with tailored frequency-dependent hydrogel–plasticized nonionic polyvinyl chloride interconnections," Chemical Engineering Journal, Vol. 442, 136142, 2022 (SCIE, IF: 13.27, Q1, Top 2.55%)

2. Dong-Soo Choi, SeongWon Jeong, Seok-Han Lee, SiHo Ryu, and Sang-Youn Kim*, "Soft Bidirectional Haptic I/O Module based on Bi-convex Patterned PVC Gel," Smart Materials and Structures, Vol. 30. No. 4, 2021 (SCIE, IF: 3.58, Q1, Top 20.31%)

3. Jin Woo Bae†, Dong-Soo Choi†, In-Ho Yun, Dong-Heon Han, Seung-Ju Oh, Tae-Hoon Kim, Jeong Ho Cho, Liwei Lin*, and Sang-Youn Kim*, "Electrically Adaptive and Shape-changeable Invertible Microlens," ACS Applied Materials and Interfaces, Vol. 13, No. 8, 2021 (SCIE, IF: 9.229, Q1, Top 13.21%)

4. Ganesh Shimoga, Dong-Soo Choi, and Sang-Youn Kim*, "Bio-Inspired Soft Robotics: Tunable Photo-Actuation Behavior of Azo Chromophore Containing Liquid Crystalline Elastomers," Applied Sciences-Basel, Vol. 11, No. 3, 2021 (SCIE, IF: 2.679, Q2, Top 42.22%)

5. Ganesh Shimoga†, Ramasubba Reddy Palem†, Dong-Soo Choi, Eun-Jae Shin, Pattan-Siddappa Ganesh, Ganesh Dattatraya Saratale, Rijuta Ganesh Saratale, Soo-Hong Lee, and Sang-Youn Kim*, "Polypyrrole-Based Metal Nanocomposite Electrode Materials for High-Performance Supercapacitors", Metals, Vol. 11, No. 6, 2021 (SCIE, IF: 2.351, Q2, Top 30%)

6. Tae-Hoon Kim, Hyun-Jeong Kim, Dong-Soo Choi, Yoon-Chae Nah*, and Sang-Youn Kim*, "Testing and evaluation of electro- vari-focal/chromic lens," Smart Materials and Structures, Vol. 30. 2021 (SCIE, IF: 3.58, Q1, Top 20.31%)

7. Pattan-Siddappa Ganesh, Sang-Youn Kim*, Dong-Soo Choi, Savas Kaya*, Goncagül Serdaroğlu, Ganesh Shimoga, Eun-Jae Shin, and Seok-Han Lee, "Electrochemical investigations and theoretical studies of biocompatible niacin-modified carbon paste electrode interface for electrochemical sensing of folic acid," Journal of Analytical Science and Technology, Vol. 12, 2021 (SCIE, IF: 2.769, Q3, Top: 54.25% )

8. Yong Hae Heo, Dong-Soo Choi†, Do Eun Kim, and Sang-Youn Kim, "Flexible Vibrotactile Actuator based on Dielectric Elastomer for Smart Handheld Devices," Applied Sciences-Basel, Vol. 11, No. 24, 12020, 2021 (SCIE, IF: 2.679, Q2, Top 42.22%)

9. Dong-Soo Choi, Tae-Hoon Kim, Seok-Han Lee, Changhyun Pang, Jin Woo Bae,* and Sang-Youn Kim*, "Beyond Human Hand: Shape-Adaptive and Reversible Magnetorheological Elastomer-Based Robot Gripper Skin," ACS Applied Materials and Interfaces, Vol. 12, No. 39, 2020 (SCIE, IF: 9.229, Q1, Top 13.21%)

10. Dong-Soo Choi, Seok-Han Lee, and Sang-Youn Kim*, "Transparent and Soft Haptic Actuator for Interaction with Flexible/deformable Devices," IEEE Access, Vol. 8, 2020 (SCIE, IF: 3.367, Q2, Top 34.43%)

11. Yong Hae Heo†, Dong-Soo Choi†, In-Ho Yun and Sang-Youn Kim*, "A Tiny Haptic Knob Based on Magnetorheological Fluids," Applied Sciences-Basel, Vol. 10, No. 15, 2020 (SCIE, IF: 2.679, Q2, Top 42.22%)

12. Dong-Soo Choi†, In-Ho Yun†, Tae-Hoon Kim, SangKyu Byeon, and Sang-Youn Kim*, "Development of Haptic Stylus for Manipulating Virtual Objects in Mobile Devices," Actuators, Vol. 9, No. 2, 2020 (SCIE, IF: 1.994, Q2, Top 57.81%)

13. Dong-Soo Choi, Sang-Youn Kim*, "Transparent Film-Type Vibrotactile Actuator Array and Its Haptic Rendering Using Beat Phenomenon," Sensors, Vol. 19, No. 16, 3490, 2019 (SCIE, IF: 3.576, Q1, Top 21.87%)

14. Joohoon Kang†, Jae Hoon Park†, Dong-Soo Choi, Do Hwan Kim, Sang-Youn Kim*, and Jeong Ho Cho*, "Design of Wavy Ag Microwire Array for Mechanically Stable Multimodal Vibrational Haptic Interface," Advanced Functional Materials, Vol. 29, No. 35, 1902703, 2019 (SCIE, IF: 18.808, Q1, Top 4.49%)

15. Sang-Youn Kim, Yu-Joon Kim, Dong-Soo Choi, and Byeong-Seok Shin*, "Frequency based Tactile Rendering Method for Pin-array Tactile Devices," Journal of Ambient Intelligence and Humanized Computing, 2019 (SCIE, IF: 7.104, Q1, Top 9.89%)

16. Dong-Soo Choi†, Tae-Heon Yang†, Won-Chul Bang, and Sang-Youn Kim*, "Design of a Multi-Functional Module for Visually Impaired Persons," International Journal of Precision Engineering and Manufacturing, Vol. 19, No. 11, 2018 (SCIE, IF: 2.106, Q3, Top 50.38%)

17. Dong-Soo Choi, Jaeu Jeong, Eun-Jae Shin and Sang-Youn Kim*, "Focus-tunable Double Convex Lens based on Non-ionic Electroactive Gel," Optics Express, Vol. 25, No. 17, 2017 (SCIE, IF: 3.894, Q1, Top 20.2%)

18. Dong-Soo Choi, Jaeu Jeong, Eun-Jae Shin, and Sang-Youn Kim*, "Thin and Tiny Focus-tunable Lens for Mobile Devices and Its Measurement System", International Journal of Applied Engineering Research, Vol. 12, No. 23, pp.13286-13294, 2017

19. Jin Woo Bae, Eun-Jae Shin, Jaeu Jeong, Dong-Soo Choi, Jong Eun Lee, Byeong Uk Nam, Liwei Lin*, and Sang-Youn Kim*, "High-Performance PVC Gel for Adaptive Micro-Lenses with Variable Focal Length," Scientific Reports, DOI:10.1038/s41598-017-02324-9, 2017 (SCIE, IF: 4.379, Q1, Top 23.61%)

 ■ Awards and Grants

●한국햅틱스학술대회 우수시연상 2023 

●한국소프트웨어종합학술대회 우수논문상 2022 

●최우수학위논문상 고용노동부 장관상 (박사) 2021

●우수학위논문상 (석사) 2013

● The best demo award, World Haptics Conference 2013

■ Activities

2025 IEEE World Haptics Conference, Student Volunteers Chair (2024-2025)

2024 UCWIT, 집행위원 (2024)

2024 제 2회 한국햅틱스학술대회, 현장위원 (2024)

2023 제 1회 한국햅틱스학술대회, 학생경연위원 (2023)

한국햅틱스학회, 재무 이사 (2025.1 ~  )

한국햅틱스학회, 총무 이사 (2024.1 ~2024.12 )

한국햅틱스학회, 총무/기획 이사 (2023.1 ~ 2023.12)

Reviewer: 

Mobile Information Systems (2022)

IEEE-ASME Transactions on Mechatronics (2021~2022)

Applied Sciences-Basel (2021)

 ■ Technical & Special Skills

Languages: English and Korean

Instruments: Impedance analyzer, Dielectric interface, LCR meter, Universal testing machine, Laser scanning vibrometer, and Accelerometer

Modeling: Solidworks, Keyshot, 3Ds Max

Virtual Environment: Unity 3D, Unreal 3 & 4,  

Programming : C, C++, and C#

Etc. : Microcontroller (ARM, Arduino, and Mbed)