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  1. Article

    Open Access

    Analysis of Rain Drop Size Distribution to Elucidate the Precipitation Process using a Cloud Microphysics Conceptual Model and In Situ Measurement

    Raindrop size distribution (DSD) is an important parameter in rainfall research and can be used for quantitative precipitation estimation (QPE) in meteorology and hydrology. DSD also improves the understandin...

    Joo Wan Cha, Hae Jung Koo, Bu-Yo Kim in Asia-Pacific Journal of Atmospheric Scienc… (2023)

  2. No Access

    Article

    Inkjet Printing and In-Situ Crystallization of Biopigments for Eco-Friendly and Energy-Efficient Fabric Coloration

    Current methods of fabric dyeing have a significant negative effect on the environment via toxic effluent emissions, high water usage, and high energy consumption. We demonstrate, for the first time, low-energ...

    Yujuan He, Yu Cao, Hyun-jun Hwang in International Journal of Precision Enginee… (2022)

  3. Article

    Open Access

    Rapid Pulsed Light Sintering of Silver Nanowires on Woven Polyester for personal thermal management with enhanced performance, durability and cost-effectiveness

    Fabric-based personal heating patches have small geometric profiles and can be attached to selected areas of garments for personal thermal management to enable significant energy savings in built environments....

    Hyun-Jun Hwang, Harish Devaraj, Chen Yang, Zhongwei Gao in Scientific Reports (2018)

  4. No Access

    Article

    Prediction of biceps muscle fatigue and force using electromyography signal analysis for repeated isokinetic dumbbell curl exercise

    In this study, a new way to predict the muscle fatigue and force from Electromyography (EMG) signal for repeated isokinetic exercise is demonstrated. The relationship between cumulative biceps fatigue and EMG ...

    Hyun-Jun Hwang, Wan-Ho Chung, Joo-Ho Song in Journal of Mechanical Science and Technolo… (2016)

  5. No Access

    Article

    In vivo stiffness measurement and in silico stiffness prediction of biceps brachii muscle using an isometric contraction exercise

    Cadavers are often used to measure the material properties of muscle via the static tensile loading test. However, the mechanical properties of the cadaver are different from that of in vivo muscle. In this wo...

    Wan-Ho Chung, Dong-Ki Min, Hyun-Jun Hwang in Journal of Mechanical Science and Technolo… (2016)

  6. Article

    Open Access

    All-photonic drying and sintering process via flash white light combined with deep-UV and near-infrared irradiation for highly conductive copper nano-ink

    We developed an ultra-high speed photonic sintering method involving flash white light (FWL) combined with near infrared (NIR) and deep UV light irradiation to produce highly conductive copper nano-ink film. F...

    Hyun-Jun Hwang, Kyung-Hwan Oh, Hak-Sung Kim in Scientific Reports (2016)