Sion Cha

● Publications

Dissertation (1)

1.  Sion Cha, "Concept and Numerical Modeling for Virtual Acceleration Sense on a Semicircular canal using Focused Array Ultrasound", MS thesis, 2020, Department of Electrical Engineering, Pohang University of Science and Technology, Pohang, Korea.

Journal Paper (4)

1. J.-S. Ma, A. Pradeep, S.-W. Oh, J.-H. Lee, J.-Y. Choi, S.-O. Cha, H.-W. Oh, and W.-S. Kim*, "Operating temperature regulation in push-pull azobenzene-doped liquid crystal light-driven devices using UV absorber", Dyes Pigm. (2025).

2. S. Cha, J. Ka, I. Kong, J. Ma, S. Park, and W. Kim*, "Off-Center Rotational Dynamics in Virtual Reality: Effects on Cybersickness and Presence", IEEE Access (2025). 

3. S. Cha and W. Kim*, "A Simulation Study of Low-Intensity Focused Ultrasound for Modulating Rotational Sense Through Acoustic Streaming in Semicircular Canal: A Pilot Study", Appl. Sci. (2024).

4. S. Cha and W. Kim*, "A computational study on off-center rotational dynamics of human semicircular canals with implications for real and virtual worlds", Heliyon (2024).

International Conference Papers (5)

1. S.Y. Park, S.O. Cha, and W.S. Kim*, "Applying Vignetting implemented through the average vector of Reversed Optical Flow to frames with Depth of Field for cybersickness mitigation in virtual reality", IMID 2023 (2023).

2. S.O. Cha, S.Y. Park, and W.S. Kim*, "Analysis of the Relationship between Cybersickness and Vestibular System using Finite Element Method", IMID 2023 (2023).

3. S. Cha, J. Ma, and W. Kim*, "Concept and Numerical Modeling for virtual acceleration sense on vestibular organ using focused ultrasound", IMID, KOREA, Aug. 25-28, 2020 (2020). 

4. S. Cha, I. Gong, and W. Kim*, "Active Matrix Driving System for Photonic Nanomaterial Display to Synthesize color and sound", ICEIC 2020 (2020).

5. S. Cha and W. Kim*, "Concept of spatial front sound and optically invisible antenna on display liquid crystal cellular devices", IMID 2019 (2019).

Domestic Conference Papers (6)

1. Y. H. Lee, S. G. Park, S. O. Cha, and W.S. Kim*, "Design and Optimization of All-Dielectric Metasurfaces for Asymmetric Transmission Properties at Visible Wavelengths", CDE (2024).

2. I. B. Kong, S. O. Cha, and W. S. Kim*, "고승압비 컨버터를 위한 범용성 이 기능 회로 구조", 전력전자학회 2023 (2023).

3. I. B. Kong, S. G. Park, J. H. Ka, H. S. Eo, S. O. Cha, and W. S. Kim*, "신재생에너지 어플리케이션을 위한 등전류 공유 특성이 내장된 인터리브드 준공진형 DC-DC 컨버터", 전력전자공학회 하계학술대회 2023 (2023). 

4. S. Y. Park, S. O. Cha, Y. H. Lee, T. Y. Kim, and W. S. Kim*, "Implementation of Image Processing using Mean Vector of Reversed optical flow", IEIE 2023 (2023).

5. S. O. Cha, I. B. Kong, S. Y. Park, S. M. Yu, and W. S. Kim*, "A Numerical Analysis of the Cybersickness in Virtual Reality using Finite Element Method", IEIE 2023 (2023).

6. J. H. Kim, S. G. Park, I. B. Kong, S. O. Cha, and W. S. Kim*, "Pinhole array와 MEMS IMU를 이용한 증강현실용 헤드마운트디스플레이", In Summer Annual Conference of IEIE 2019 (2019).