Zobrazeno 1 - 10
of 1 348
pro vyhledávání: '"Chang-hee Lee"'
Publikováno v:
Energies, Vol 17, Iss 6, p 1443 (2024)
In this article, a finite control set-model predictive control (FCS-MPC) with variable sampling time is proposed. A zero-voltage vector appears in the dead time between specific voltage vectors, resulting in an unintentionally large common-mode volta
Externí odkaz:
https://doaj.org/article/4e7caaca825349529b06362e486238b7
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
O-GlcNAc modification of proteins often has crosstalk with protein phosphorylation. These posttranslational modifications are highly dynamic events that modulate a wide range of cellular processes. Owing to the physiological and pathological signific
Externí odkaz:
https://doaj.org/article/e1100c5a02624fc1acaa9cbaa8096183
Autor:
Gayoung Choi, Kyeong Ah Kim, Jinhwan Lee, Yang Shin Park, Jongmee Lee, Jae Woong Choi, Chang-Hee Lee
Publikováno v:
Ultrasonography, Vol 41, Iss 2, Pp 416-429 (2022)
Ultrasonography (US) is widely used for abdominal imaging. Its noninvasiveness, extensive range of application, and low cost make US a useful and valuable tool for the detection, diagnosis, and follow-up of splenic abnormalities. Concomitantly with t
Externí odkaz:
https://doaj.org/article/4483e626e4a941cf90b22c0a31dc68bd
Autor:
Jin-Ho Park, Woong Jo, Eun-Tak Jeon, Sang-Hun Kim, Chang-Hee Lee, Jung-Hyo Lee, June-Hee Lee, Junsin Yi, Chung-Yuen Won
Publikováno v:
IEEE Access, Vol 10, Pp 33829-33843 (2022)
Most railroad cars employ a natural ventilation cooling method. For this reason, severe problems occur in the control devices for the railroad cars due to the heat generated by the high-power switching loss. Therefore, the traction inverter for the r
Externí odkaz:
https://doaj.org/article/e0d0dcccf43546c892a1ae3d01e63014
Publikováno v:
Applied Sciences, Vol 13, Iss 15, p 8764 (2023)
The levels of informatization, automation, and intelligence are continuously improving; however, the risks associated with the increased design and operational complexity of ship systems are increasing. Large-scale ship accidents can occur for severa
Externí odkaz:
https://doaj.org/article/4f5d64b68fc54745b0c2d8c66a37e100
Autor:
A Jin Cho, Hong-Seock Lee, Young-Ki Lee, Hee Jung Jeon, Hayne Cho Park, Da-Wun Jeong, Yang-Gyun Kim, Sang-Ho Lee, Chang-Hee Lee, Kyung Don Yoo, Ae Kyeong Wong
Publikováno v:
BioPsychoSocial Medicine, Vol 14, Iss 1, Pp 1-6 (2020)
Abstract Background Post-traumatic stress symptoms can occur in patients with medical illness. During the Middle East Respiratory Syndrome (MERS) outbreak in South Korea in 2015, some dialysis patients in three centers who were incidentally exposed t
Externí odkaz:
https://doaj.org/article/d8386e2f5c644d85b2484c957cad6610
Autor:
Il-Pyeong Hwang, Chang-Hee Lee
Publikováno v:
IEEE Access, Vol 8, Pp 124123-124133 (2020)
We investigate characteristics and impacts of the mutual interference to a LiDAR using an analog true-random signal, for autonomous vehicle applications. Various LiDAR signals with a continuous-wave, a pulse light from a directly modulated laser, and
Externí odkaz:
https://doaj.org/article/6883e9cc825c4012b339a37aca40c7d4
Autor:
Pallab K. Choudhury, Chang-Hee Lee
Publikováno v:
IEEE Access, Vol 8, Pp 52113-52120 (2020)
High speed imaging with improved resolution and wide area scanning are the ultimate targets for designing a MEMS mirror based LiDAR. Simultaneous improvements of above parameters are critical and yet pose design tradeoff among system complexity, cost
Externí odkaz:
https://doaj.org/article/b4c2598c1965458a903c30ae50dbd463
Publikováno v:
Energies, Vol 16, Iss 3, p 1172 (2023)
A virtual impedance-based flying start considering transient characteristics for permanent magnet synchronous machine drive systems is proposed. The conventional flying start based on virtual resistance (VR) assumes that the load of the system is res
Externí odkaz:
https://doaj.org/article/aa94c464e6ce43dcb76428dbddbcfbc7
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 2, p 1097 (2023)
Transparent organic light emitting diode (OLED) display is one of the most promising devices among next-generation information displays because of beneficial characteristics, such as self-emissive and optically clear properties. Nevertheless, in conv
Externí odkaz:
https://doaj.org/article/5091d3ae546f4e97b0fe12555fbdd33c