Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Hyeon-Sik Kim"'
Autor:
Hyeon-Sik Kim, Seung-Ki Sul
Publikováno v:
IEEE Access, Vol 9, Pp 124519-124529 (2021)
This paper presents a resonance suppression method that reduces current oscillation incurred by the LCL-filtered grid-connected converter’s discontinuous PWM (DPWM). First, the cause of LCL resonance is analyzed with an aspect of frequency and time
Externí odkaz:
https://doaj.org/article/14ca8764ad2e4fd79f9c1e2baae59e11
Publikováno v:
Applied Sciences, Vol 11, Iss 18, p 8707 (2021)
The accuracy of positron emission tomography (PET) imaging is hampered by the partial volume effect (PVE), which causes image blurring and sampling. The PVE produces spillover phenomena, making PET analysis difficult. Generally, the PVE values vary b
Externí odkaz:
https://doaj.org/article/ee6987bd950f4c8992dfe17aaf64f60e
Autor:
Jae Sung Lim, Eun Jae Jeon, Hye Sun Go, Hyung-Jin Kim, Kye Young Kim, Thi Quynh Trang Nguyen, Da Young Lee, Kyu Suk Kim, Federico Pietrocola, Seol Hee Hong, Shee Eun Lee, Kyoung-Shim Kim, Tae-Shin Park, Dong-Hee Choi, Yu-Jin Jeong, Jong-Hwan Park, Hyeon Sik Kim, Jung-Joon Min, Yong Sook Kim, Joon Tae Park, Jae-Ho Cho, Gil-Woo Lee, Ji Hyeon Lee, Hyon E. Choy, Sang Chul Park, Chul-Ho Lee, Joon Haeng Rhee, Manuel Serrano, Kyung A Cho
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-14 (2024)
Abstract Addressing age-related immunological defects through therapeutic interventions is essential for healthy aging, as the immune system plays a crucial role in controlling infections, malignancies, and in supporting tissue homeostasis and repair
Externí odkaz:
https://doaj.org/article/cf7c542e5ba24240af9068e8d02ba7f1
Publikováno v:
Journal of Mechanical Science and Technology. 37:1145-1154
Publikováno v:
IEEE Transactions on Power Electronics. 37:12525-12537
Autor:
Seung-Ki Sul, Hyeon-Sik Kim
Publikováno v:
IEEE Journal of Emerging and Selected Topics in Power Electronics. 10:3345-3356
For interior permanent magnet synchronous motor (IPMSM) drives, accurate torque control and loss-minimizing operation are essential issues to keep up the excellent features of IPMSM. However, flux linkage variations owing to various operating conditi
Autor:
Gihyeon Kwon, Yoon-Ho Choi, Hyangsook Lee, Hyeon-Sik Kim, Jeahun Jeong, Kwangsik Jeong, Min Baik, Hoedon Kwon, Jaemin Ahn, Eunha Lee, Mann-Ho Cho
Publikováno v:
Nature Electronics. 5:241-247
Publikováno v:
IEEE Transactions on Industrial Electronics. 69:3334-3344
This paper analyzes the effect of discretization in the frequency-adaptive flux observer (FAO). Although FAO has structural simplicity and ease of implementation, the discrete-time FAO has phase and gain errors in fundamental flux estimation. As a re
Publikováno v:
IEEE Transactions on Power Electronics. 37:4431-4441
In this paper, a maximum online torque per ampere (MTPA) control is proposed for torque control of interior permanent magnet synchronous motors (IPMSMs). First, torque and MTPA equations are derived based on flux variables, where the influence of mag
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 31:511-520