Search Results - "Changhan Yoon"

Recent Advancements in High-Frequency Ultrasound Applications from Imaging to Microbeam Stimulation by Kim, Min Gon, Yoon, Changhan, Lim, Hae Gyun

“…Ultrasound is a versatile and well-established technique using sound waves with frequencies higher than the upper limit of human hearing. Typically,…”
Get full text

Recent Advances in Imaging Sensors and Applications by Yoon, Changhan, Lee, Changho

“…Recent advances in sensor technology have allowed us to develop many interesting applications and enhance the quality of human life [...]…”
Get full text

Synthetic Aperture Imaging Using High-Frequency Convex Array for Ophthalmic Ultrasound Applications by Lim, Hae Gyun, Kim, Hyung Ham, Yoon, Changhan

“…High-frequency ultrasound (HFUS) imaging has emerged as an essential tool for pre-clinical studies and clinical applications such as ophthalmic and…”
Get full text

Multi-particle trapping and manipulation by a high-frequency array transducer by Yoon, Changhan, Kang, Bong Jin, Lee, Changyang, Kim, Hyung Ham, Shung, K Kirk

“…We report the multiple micro-particle trapping and manipulation by a single-beam acoustic tweezer using a high-frequency array transducer. A single acoustic…”
Get full text

Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation by Choi, Hojong, Woo, Park Chul, Yeom, Jung-Yeol, Yoon, Changhan

“…A power MOSFET linearizer is proposed for a high-voltage power amplifier (HVPA) used in high-frequency pulse-echo instrumentation. The power MOSFET linearizer…”
Get full text

Evaluation method for acoustic trapping performance by tracking motion of trapped microparticle by Lim, Hae Gyun, Kim, Hyung Ham, Yoon, Changhan

“…We report a method to evaluate the performances of a single-beam acoustic tweezer using a high-frequency ultrasound transducer. The motion of a microparticle…”
Get full text

Monitoring of Adult Zebrafish Heart Regeneration Using High-Frequency Ultrasound Spectral Doppler and Nakagami Imaging by Yeo, Sunmi, Yoon, Changhan, Lien, Ching-Ling, Song, Tai-Kyong, Shung, K Kirk

“…This paper reports the feasibility of Nakagami imaging in monitoring the regeneration process of zebrafish hearts in a noninvasive manner. In addition,…”
Get full text

Combined Application of Prototype Ultrasound and BSA-Loaded PLGA Particles for Protein Delivery by Jin, Minki, Seo, Sung Ho, Kim, Bo Seok, Hwang, Seungmi, Kang, Yun Gyeong, Shin, Jung-Woog, Cho, Kwan Hyung, Byeon, Jimi, Shin, Meong Cheol, Kim, Doyeon, Yoon, Changhan, Min, Kyoung Ah

“…Purpose To develop an in vitro culture system for tissue engineering to mimic the in vivo environment and evaluate the applicability of ultrasound and PLGA…”
Get full text

Decoding a highly mixed Kazakh genome by Seidualy, Madina, Blazyte, Asta, Jeon, Sungwon, Bhak, Youngjune, Jeon, Yeonsu, Kim, Jungeun, Eriksson, Anders, Bolser, Dan, Yoon, Changhan, Manica, Andrea, Lee, Semin, Bhak, Jong

“…We provide a Kazakh whole genome sequence (MJS) and analyses with the largest comparative Kazakh genomic data available to date. We found 102,240 novel SNVs…”
Get full text

A single FPGA-based portable ultrasound imaging system for point-of-care applications by Kim, Gi-Duck, Yoon, Changhan, Kye, Sang-Bum, Lee, Youngbae, Kang, Jeeun, Yoo, Yangmo, Song, Tai-kyong

“…We present a cost-effective portable ultrasound system based on a single field-programmable gate array (FPGA) for point-of-care applications. In the portable…”
Get full text

Enhancement of photoacoustic image quality by sound speed correction: ex vivo evaluation by Yoon, Changhan, Kang, Jeeun, Han, Seunghee, Yoo, Yangmo, Song, Tai-Kyong, Chang, Jin Ho

“…Real-time photoacoustic (PA) imaging involves beamforming methods using an assumed fixed sound speed, typically 1540 m/s in soft tissue. This leads to…”
Get full text

Correction to: Combined Application of Prototype Ultrasound and BSA-Loaded PLGA Particles for Protein Delivery by Jin, Minki, Seo, Sung Ho, Kim, Bo Seok, Hwang, Seungmi, Kang, Yun Gyeong, Shin, Jung-Woog, Cho, Kwan Hyung, Byeon, Jimi, Shin, Meong Cheol, Kim, Doyeon, Yoon, Changhan, Min, Kyoung Ah

“…A Correction to this paper has been published: https://doi.org/10.1007/s11095-021-03097-7…”
Get full text

Calibration of Trapping Force on Cell-Size Objects From Ultrahigh-Frequency Single-Beam Acoustic Tweezer by Lim, Hae Gyun, Li, Ying, Lin, Ming-Yi, Yoon, Changhan, Lee, Changyang, Jung, Hayong, Chow, Robert H., Shung, K. Kirk

“…In this paper, we report a calibration of acoustic trapping force of single-beam acoustic tweezer (SBAT) at ultrahigh frequency using micropipette aspiration…”
Get full text

Polygenic risk score validation using Korean genomes of 265 early-onset acute myocardial infarction patients and 636 healthy controls by Bhak, Youngjune, Jeon, Yeonsu, Jeon, Sungwon, Yoon, Changhan, Kim, Min, Blazyte, Asta, Kim, Yeonkyung, Kang, Younghui, Kim, Changjae, Lee, Sang Yeub, Bae, Jang-Whan, Kim, Weon, Kim, Yeo Jin, Shim, Jungae, Kim, Nayeong, Chun, Sung, Kim, Byoung-Chul, Kim, Byung Chul, Lee, Semin, Bhak, Jong, Shin, Eun-Seok

“…The polygenic risk score (PRS) developed for coronary artery disease (CAD) is known to be effective for classifying patients with CAD and predicting subsequent…”
Get full text

Automated classification of liver fibrosis stages using ultrasound imaging by Park, Hyun-Cheol, Joo, YunSang, Lee, O-Joun, Lee, Kunkyu, Song, Tai-Kyong, Choi, Chang, Choi, Moon Hyung, Yoon, Changhan

“…Ultrasound imaging is the most frequently performed for the patients with chronic hepatitis or liver cirrhosis. However, ultrasound imaging is highly operator…”
Get full text

Classification of Liver Fibrosis from Heterogeneous Ultrasound Image by Joo, Yunsang, Park, Hyun-Cheol, Lee, O-Joun, Yoon, Changhan, Choi, Moon Hyung, Choi, Chang

“…With the advances in deep learning, including Convolutional Neural Networks (CNN), automated diagnosis technology using medical images has received…”
Get full text

Investigation of cell mechanics using single-beam acoustic tweezers as a versatile tool for the diagnosis and treatment of highly invasive breast cancer cell lines: an in vitro study by Lim, Hae Gyun, Liu, Hsiao-Chuan, Yoon, Chi Woo, Jung, Hayong, Kim, Min Gon, Yoon, Changhan, Kim, Hyung Ham, Shung, K. Kirk

“…Advancements in diagnostic systems for metastatic cancer over the last few decades have played a significant role in providing patients with effective…”
Get full text

An efficient pulse compression method of chirp-coded excitation in medical ultrasound imaging by Yoon, Changhan, Lee, Wooyoul, Chang, Jin, Song, Tai-kyong, Yoo, Yangmo

“…Coded excitation can improve the SNR in medical ultrasound imaging. In coded excitation, pulse compression is applied to compress the elongated coded signals…”
Get full text

Real-Time Lossless Compression Algorithm for Ultrasound Data Using BL Universal Code by Kim, Jung Hoon, Yeo, Sunmi, Kim, Jong Won, Kim, Kyeongsoon, Song, Tai-Kyong, Yoon, Changhan, Sung, Joohon

“…Software-based ultrasound imaging systems provide high flexibility that allows easy and fast adoption of newly developed algorithms. However, the extremely…”
Get full text

A System-on-Chip Solution for Point-of-Care Ultrasound Imaging Systems: Architecture and ASIC Implementation by Kang, Jeeun, Yoon, Changhan, Lee, Jaejin, Kye, Sang-Bum, Lee, Yongbae, Chang, Jin Ho, Kim, Gi-Duck, Yoo, Yangmo, Song, Tai-kyong

“…In this paper, we present a novel system-on-chip (SOC) solution for a portable ultrasound imaging system (PUS) for point-of-care applications. The PUS-SOC…”
Get full text