Zobrazeno 1 - 10
of 293
pro vyhledávání: '"Wook-Sung Kim"'
Publikováno v:
Journal of Information Display, Vol 24, Iss 4, Pp 249-254 (2023)
We demonstrate using a diffractive smart window with homogeneous-aligned (HA) liquid crystals (LCs) owing to the large spatial phase difference in all directions in the opaque state. The proposed grating cell had a high haze value (88.57%), which was
Externí odkaz:
https://doaj.org/article/d127088d895c41e39725162b12c438aa
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract Using a single substrate, we demonstrate a simple two-dimensional (2-D) phase grating cell with an octothorp electrode. Owing to the large spatial phase difference in any direction, the proposed grating cell has a high haze value in the opaq
Externí odkaz:
https://doaj.org/article/3841a358ee174598a1ff2e65b172c0ba
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 2, Pp n/a-n/a (2023)
Beam‐steering device using liquid crystal (LC) grating with field‐induced twist deformation, which has symmetric LC director distribution, is demonstrated. The proposed LC cell can convert the polarizations without multidomain LC alignments, and
Externí odkaz:
https://doaj.org/article/ba9dfc32cd8d46129b3a4ca6a4b53099
Phase Shifting Enhancement of a Substrate-Integrated Waveguide Phase Shifter Based on Liquid Crystal
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2504 (2023)
A novel technique to enhance the phase shifting range of a liquid crystal (LC)-based, substrate-integrated waveguide (SIW) phase shifter by inserting inductive posts (IPs) is presented for the first time. The IPs inserted in the LC-based SIW phase sh
Externí odkaz:
https://doaj.org/article/322ee0243c0b457c9fc4561e80deedf6
Publikováno v:
Applied Sciences, Vol 12, Iss 24, p 12582 (2022)
We evaluated hexadecyltrimethylammonium bromide (HTAB) for liquid crystals (LCs) in layered ITO cells with various cell gap conditions. HTAB is a surfactant that can self-align vertically on the surface of indium tin oxide (ITO) substrates and induce
Externí odkaz:
https://doaj.org/article/2af5839c0f644594bf6b70fbab551dc5
Autor:
Seung Hun Lee, Jinhwan Jo, Jeong Hoon Yang, Sung Mok Kim, Ki Hong Choi, Young Bin Song, Dong Seop Jeong, Joo Myung Lee, Taek Kyu Park, Joo‐Yong Hahn, Seung‐Hyuk Choi, Su Ryeun Chung, Yang Hyun Cho, Kiick Sung, Wook Sung Kim, Hyeon‐Cheol Gwon, Young Tak Lee
Publikováno v:
Journal of Cachexia, Sarcopenia and Muscle, Vol 15, Iss 6, Pp 2842-2851 (2024)
ABSTRACT Background Sarcopenia is an aging‐related condition characterized by loss of skeletal muscle mass and is an indicator of subclinical atherosclerosis. The relationship between reduced muscle mass and long‐term clinical outcomes in patient
Externí odkaz:
https://doaj.org/article/d70ff09b469449dd91924658b25cc9ee
Publikováno v:
Cardiovascular Diabetology, Vol 21, Iss 1, Pp 1-13 (2022)
Abstract Background The effect of diabetes mellitus (DM) on the long-term outcomes of coronary artery bypass graft (CABG) remained debatable and various strategies exist for CABG; hence, clarifying the effects of DM on CABG outcomes is difficult. The
Externí odkaz:
https://doaj.org/article/946f9343404b4465bb10c9cc69c89f45
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-11 (2022)
Ellipsoidal-shaped Mie resonators are integrated with a liquid crystal cell to demonstrate electrically tunable reflective structural color metasurfaces that can be modulated continuously from bright spectral colors to dark blacks.
Externí odkaz:
https://doaj.org/article/7b11a66c2e374569a63ef83c351bf01d
Publikováno v:
Journal of Chest Surgery, Vol 54, Iss 6, Pp 543-546 (2021)
A 55-year-old woman who had received an implantable left ventricular assist device 3 months earlier presented with dyspnea and a low-flow alarm of the device. Computed tomography and log-file analysis of the device system suggested inflow cannula o
Externí odkaz:
https://doaj.org/article/bc73466b4f66470894d44ba4732e2503
Autor:
Jae Jun Lee, Young Su Kim, Suryeun Chung, Dong Seop Jeong, Ji-Hyuk Yang, Kiick Sung, Wook Sung Kim, Tae-Gook Jun, Yang Hyun Cho
Publikováno v:
Journal of Chest Surgery, Vol 54, Iss 2, Pp 99-105 (2021)
Background: The number of heart transplantations (HTx) is increasing annually. Due to advances in medical and surgical support, the outcomes of HTx are also improving. Extracorporeal circulatory life support (ECLS) provides patients with decompensa
Externí odkaz:
https://doaj.org/article/ae9c9500101e4c1798b6bd0057b6efc2