Journals

Yu, H., Park, Y., and Chang, J*. (2023). Which Thumb, the Left or Right, Touches the Letter Keys on a Smartphone QWERTY Soft Keyboard during Two-Thumb Key Entry?. Applied Sciences, 13(22), 12417. 

Kang, E., Tjolleng, A., Yu, H., Jung, K., and Chang, J.* (2023). Investigation into touch performance on a QWERTY soft keyboard on a smartphone: Touch time, accuracy, and satisfaction in two-thumb key entry. Applied Sciences, 13 (11), 6825. 

Tjolleng, A., Chang, J., Park, J., and Jung, K. (2023). Designing a shape of a nose clip for a half-face mask with 3D                             anthropometric face analysis: Half-face mask with 3D anthropometry. International Journal of Industrial Engineering: Theory, Application and Practice, 30 (1). 

Tjolleng, A., Chang, J., Park, J., Lee, W., Cha, M., and Jung, K. (2023). Development of a human-friendly visual inspection method for painted vehicle bodies. Applied Ergonomics, 106, 103911.

Yu, H., Kang, E., and Chang, J.* (2022). A study on sEMG-based motor variability and functional connectivity of the upper limb depending on weight distributions in a handle of a cordless stick-type vacuum cleaner. Sensors, 22 (13), 4835.

Yu, H., Nam, K., Shin, S., Choi, M., Son, Y. *, and Chang, J.* (2021). Repetitive patterns in the locations of touch errors for two-thumb text entry on a smartphone. Applied Ergonomics, 97, 103541.

Kang, E., Yu, H., and Chang, J.* (2020). Effects of weight distribution in a handle of a cordless stick-type vacuum cleaner; Muscle activity and subjective discomfort of the upper limb. International Journal of Industrial Ergonomics, 80 (C), 103054.

Tjolleng, A., Chang, J., Jeong, L., Kim, M., and Jung, K. (2020). Ergonomic design recommendations for designing an optical fiber rescue signal to life jacket. International Journal of Industrial Engineering: Theory, Application and Practice, 27 (3), 463-472.

Kim, D., Choi, E., Jeong, HG, Chang, J., and Youm, S. (2020). Expert system for mandibular condyle detection and osteoarthritis classification in panoramic imaging using R-CNN and CNN. Applied Sciences, 10 (21), 7464.

Park, S., Chang, J., and Jung, K (2020). Effects of button angles in the center fascia of vehicle on push force and satisfaction. Journal of the Ergonomics Society of Korea, 39(4), 1-9.

Park, S. H., Tjolleng, A., Chang, J., Cha, M., Park, J., and Jung, K. (2020). Detecting and localizing dents on vehicle bodies using Region-based Convolutional Neural Network. Applied Sciences, 10 (4), 1250.

Chang, J. and Jung, K. (2019). Effects of button width, height, and location on a soft keyboard: Task completion time, error rate, and satisfaction in two-thumb text entry on smartphone. IEEE Access, 7, 69848-69857.

Jang, J., Chang, J., and Jung, K. (2019). Development of an ergonomic caregiver-supporting system for providing professional care services. Journal of the Ergonomics Society of Korea, 38(1), 1-11.

Hsiao, H., Chang, J., and Simeonov, P. (2018). Preventing emergency vehicle crashes: status and challenges of Human Factors issues. Human Factors, 60 (7), 1048-1072.

Chang, J., Moon., S. K., Jung, K., Kim, W., Parkinson, M. B., Freivalds, A., Simpson, T. W., and Baik, S. P. (2018). Glasses-type wearable computer display: Usability considerations examined with a 3D glasses case study. Ergonomics, 61(5), 670-681.

Chang, J. and Jung, K. (2017). Development of a press and drag method for hyperlink selection on smartphones. Applied Ergonomics, 65, 269-276.

Chang, J., Freivalds, A., Sharkey, N. A., Kong, Y-K., Kim, H. M., Sung, K., Kim, D-M, and Jung, K. (2017). Investigation of index finger triggering force using a cadaver experiment: Effects of trigger grip span, contact location, and internal tendon force. Applied Ergonomics, 65, 183-190.

Chang, J., Choi, B., Tjolleng, A., and Jung, K. (2017). Effects of button position on a soft keyboard: muscle activity, touch time, and discomfort in two-thumb text entry. Applied Ergonomics, 60, 282-292.

Chang, J., Jung, K., Lee, W., and You, H. (2017). Development of a usability evaluation method using natural product-use motion. Applied Ergonomics, 60, 171-182.

Kong, Y-K., Freivalds, A., Kim, D-M., and Chang, J.* (2017). Investigation of methods for estimating hand bone dimensions using x-ray hand anthropometric data. International Journal of Occupational Safety and Ergonomics, 23(2), 214-224.

Chang, J. and Jung, K. (2017). Effects of traffic signals with a countdown indicator: Driver’s reaction time and subjective satisfaction in driving simulation. Journal of the Ergonomics Society of Korea, 36(5), 459-466.

Chang, J., Jung, K., Kim, W., Moon., S. K., Freivalds, A., Simpson, T. W., and Baik, S. P. (2014). Effects of weight balance on a 3D TV shutter type glasses: Subjective discomfort and physical contact load on the nose. International Journal of Industrial Ergonomics, 44(6), 801-809.

Jung, K, Lee, M., Chang, J., and You, H. (2011). Evaluation of information presentation methods for a wearable Braille display. Journal of the Ergonomics Society of Korea, 30(6), 739-747.

Park, J., Jung, K., Chang, J., Kwon, J., and You, H. (2010). Evaluation of predicted driving postures in RAMSIS digital human model simulation. IE Interface, 23(2), 100-107.

Cho, J., Jeong, J., Yeon, S., Chang, J., You, H., and Kim, H. (2008). Cost-effectiveness analysis for clothing design improvement using ergonomic methods: Evaluation of flame-proof clothing and design optimization. Journal of the Ergonomics Society of Korea, 27(4), 45-58.

Lee, W., Jung, K., Chang, J., Chang, J., You, H., Chang, S. Y., Jung, M., Han, S. H., and Jun, C. (2008). The needs of students and practitioners on the education curriculum of innovative product development. Journal of Korean Engineering Education Research, 11(4), 11-18.

Jung, K., Chang, J., Lee, W., Chang, J., You, H., Chang, S. Y., and Jun, C. (2008). A strategic approach to construction of a course module for innovative product design and development. Journal of Korean Engineering Education Research, 11(3), 5-11.

Cho, J., Jeong, J., Yeon, S., Chang, J., You, H., and Kim, H. (2007). Development and application of an ergonomic evaluation system for functional clothing: Evaluation of flame-proof clothing and identification of design problems. Journal of the Ergonomics Society of Korea, 26(2), 1-13.

Kim, H., Yeon, S., Jeong, J., Lee, M., Chang, J., and You, H. (2006). Ergonomic evaluation of functional working-clothes: Focused on flame-proof clothing. Fashion and Textile Research Journal, 8(5), 597-603.