Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Seong Wook Choi"'
Publikováno v:
ETRI Journal, Vol 43, Iss 5, Pp 881-890 (2021)
AbstractPhotoplethysmography (PPG) is a noninvasive technique that can be used to conveniently measure heart rate (HR) and thus obtain relevant health‐related information. However, developing an automated PPG system is difficult, because its wavefo
Externí odkaz:
https://doaj.org/article/bf9d7ff161334534903d6a78adc52319
Publikováno v:
BioMedical Engineering OnLine, Vol 18, Iss 1, Pp 1-18 (2019)
Abstract Background The heart wall exhibits three layers of different thicknesses: the outer epicardium, mid-myocardium, and inner endocardium. Among these layers, the mid-myocardium is typically the thickest. As indicated by preliminary studies, hea
Externí odkaz:
https://doaj.org/article/dcda90fb4a9249309d48951d79bea639
Publikováno v:
BioMedical Engineering OnLine, Vol 17, Iss 1, Pp 1-14 (2018)
Abstract Background To reduce the risk of patient damage and complications during the cardiopulmonary resuscitation (CPR) process in emergency situations, it is necessary to monitor the status of the patient and the quality of CPR while CPR processin
Externí odkaz:
https://doaj.org/article/3cbadfafe8a94ce797b7af8841fd3d92
Autor:
Jun I. K. Park, Aulia Khamas Heikhmakhtiar, Chang Hyun Kim, Yoo Seok Kim, Seong Wook Choi, Kwang Soup Song, Ki Moo Lim
Publikováno v:
BioMedical Engineering OnLine, Vol 17, Iss 1, Pp 1-13 (2018)
Abstract Background and aims Although it is important to analyze the hemodynamic factors related to the right ventricle (RV) after left ventricular assist device (LVAD) implantation, previous studies have focused only on the alteration of the ventric
Externí odkaz:
https://doaj.org/article/9be0b182eb464b09a6de9b827c8fcc2c
Publikováno v:
BioMedical Engineering OnLine, Vol 17, Iss 1, Pp 1-10 (2018)
Abstract Background Decellularized animal organs have been used as scaffolds for tissue engineering. To make a properly functioning scaffolds, the extracellular matrix (ECM) components must be preserved after decellularization. Because pulsatile flow
Externí odkaz:
https://doaj.org/article/c0f7e9e986d148ffbb6ce48f3ad27bc2
Publikováno v:
BioMedical Engineering OnLine, Vol 17, Iss 1, Pp 1-13 (2018)
Abstract Background Counter-pulsation control (CPC) by ventricular assist devices (VADs) is believed to reduce cardiac load and increase coronary perfusion. However, patients with VADs have a higher risk of arrhythmia, which may cause the CPC to fail
Externí odkaz:
https://doaj.org/article/9dd5b9f6932f47879863ece23100106a
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers - B. 47:263-269
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a254651b6bd5e2109868409171c7b306
https://doi.org/10.3795/ksme-b.2023.47.5.263
https://doi.org/10.3795/ksme-b.2023.47.5.263
Publikováno v:
Energies, Vol 15, Iss 3, p 783 (2022)
A hybrid control method using a comparator and a charge control method is proposed for a single-inductor multiple-output (SIMO) DC-DC converter. SIMO DC-DC converters have the weaknesses relating to cross-regulation, as all the output channels share
Externí odkaz:
https://doaj.org/article/401b91faacf64114bafd4ead96ac7abb
Publikováno v:
Journal of Clinical Otolaryngology Head and Neck Surgery. 33:203-207
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c26e29796ab1e0f1298475169244f303
https://doi.org/10.35420/jcohns.2022.33.4.203
https://doi.org/10.35420/jcohns.2022.33.4.203
Autor:
Jae-Soub Han, Tae-Hyeok Eom, Seong-Wook Choi, Kiho Seong, Dong-Hyun Yoon, Tony Tae-Hyong Kim, Kwang-Hyun Baek, Yong Shim
Publikováno v:
Sensors, Vol 21, Iss 20, p 6824 (2021)
Sampling-based PLLs have become a new research trend due to the possibility of removing the frequency divider (FDIV) from the feedback path, where the FDIV increases the contribution of in-band noise by the factor of dividing ratio square (N2). Betwe
Externí odkaz:
https://doaj.org/article/fe02c73a5b254053bb71dcd92f069633