Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Sang-Won Choi"'
Autor:
Min-Surk Kye, Do Yeon Kim, Dong-Wan Kang, Baik Kyun Kim, Jung Hyun Park, Hyung Seok Guk, Nakhoon Kim, Sang-Won Choi, Jun Yup Kim, Jihoon Kang, Beom Joon Kim, Moon-Ku Han, Hee-Joon Bae
Publikováno v:
Journal of Neurocritical Care, Vol 17, Iss 1, Pp 16-23 (2024)
Background This study investigated the impact of premorbid functional dependency on post-stroke mortality in patients with anterior circulation stroke (ACS) and posterior circulation stroke (PCS). Methods This study enrolled 9,698 patients who experi
Externí odkaz:
https://doaj.org/article/cadffc850cd2402891e7c6f5e8f57e87
Autor:
Min-Surk Kye, Do Yeon Kim, Dong-Wan Kang, Baik Kyun Kim, Jung Hyun Park, Hyung Seok Guk, Nakhoon Kim, Sang-Won Choi, Dongje Lee, Yoona Ko, Jun Yup Kim, Jihoon Kang, Beom Joon Kim, Moon-Ku Han, Hee-Joon Bae
Publikováno v:
Journal of Medicine and Life Science, Vol 21, Iss 2, Pp 40-48 (2024)
Understanding the effectiveness of statin treatment is essential for developing tailored stroke prevention strategies. We aimed to evaluate the efficacy of statin treatment in preventing recurrent stroke among patients with various ischemic stroke su
Externí odkaz:
https://doaj.org/article/1cafb9bf95f04c8c94b51918f3108cf2
Autor:
Chang Bong Jang, Sang-Won Choi
Publikováno v:
Safety and Health at Work, Vol 8, Iss 1, Pp 42-48 (2017)
Background: As one of the most frequently occurring accidents in a chemical plant, a fire accident may occur at any place where transfer or handling of combustible materials is routinely performed. Methods: In particular, a jet fire incident in a che
Externí odkaz:
https://doaj.org/article/baec7602b74f4774a0966e6588b890bf
Publikováno v:
ICT Express, Vol 9, Iss 4, Pp 548-555 (2023)
This paper presents a tutorial on Deep Learning (DL) with Federated Learning (FL)-based indoor localization method for non-Independently and Identically Distributed (non-IID) fingerprinting databases. To this end, this paper explains systematic appro
Externí odkaz:
https://doaj.org/article/8d2256e452e54ad88bd999e8fced0ce9
Autor:
Sang Won Choi, Youngje Sung
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 23, Iss 2, Pp 154-164 (2023)
A dual-feed antenna system with circular polarization (CP) diversity and high isolation is proposed in this paper. The proposed antenna consists of two bent monopole antennas and an isosceles triangular partial GND on a single layer. To simply design
Externí odkaz:
https://doaj.org/article/c3272b3d195b424689ac77ad2947267c
Autor:
Seunghwan Won, Sang Won Choi
Publikováno v:
IEEE Access, Vol 9, Pp 100223-100263 (2021)
This tutorial guides the reader through the open literature on the aspect of Initial Cell Search (ICS) in both Code Division Multiple Access (CDMA) and Orthogonal Frequency Division Multiple Access (OFDMA) systems perspectives with a special focus on
Externí odkaz:
https://doaj.org/article/c7e25c86552241349420af2d895d31e5
Autor:
Sang Won Choi, Jae Hee Kim
Publikováno v:
IEEE Access, Vol 9, Pp 135326-135333 (2021)
This paper presents a unified framework for Automatic Repeat reQuest (ARQ)-based retransmission schemes in multi-user broadcast environments. Two perspectives, namely, coded packet design and the enhancement of the ARQ protocol, are used to establish
Externí odkaz:
https://doaj.org/article/2ccdc39823724a38a8d88f960c9b0d05
Autor:
Seunghwan Won, Sang Won Choi
Publikováno v:
IEEE Access, Vol 8, Pp 116914-116960 (2020)
This survey provides the reader with the open literature on the detailed operational scenarios of Target Cell Search (TCS) in both 3G and 4G systems, with a particular emphasis on the DownLink (DL). There is no completely latest survey of the TCS sce
Externí odkaz:
https://doaj.org/article/735d4ce3a75d471098e536330ba34b48
Autor:
Jae Hee Kim, Sang Won Choi
Publikováno v:
IEEE Access, Vol 8, Pp 226059-226063 (2020)
In this article, we propose a deep neural network (DNN)for the radiation pattern synthesis of an antenna. The DNN utilizes the radiation patterns as inputs and the amplitude and phase of the antenna elements as outputs. Consequently, the radiation pa
Externí odkaz:
https://doaj.org/article/91310c69690042c882ac7c2f4da82731
Publikováno v:
IEEE Access, Vol 7, Pp 6545-6552 (2019)
To support the vehicular communication services that require low end-to-end transfer latency, the long-term evolution (LTE) specification recently defined a new channel sidelink, which enables direct data transfer among vehicle user equipments (UEs)
Externí odkaz:
https://doaj.org/article/904dc957f9f249caabe57c70836f1565