Zobrazeno 1 - 10
of 19 542
pro vyhledávání: '"Sung-Jin An"'
Autor:
Chanwoo Lee, Byeong Geun Jeong, Sung Hyuk Kim, Dong Hyeon Kim, Seok Joon Yun, Wooseon Choi, Sung-Jin An, Dongki Lee, Young-Min Kim, Ki Kang Kim, Seung Mi Lee, Mun Seok Jeong
Publikováno v:
npj 2D Materials and Applications, Vol 6, Iss 1, Pp 1-9 (2022)
Abstract Nanoscale defects in two-dimensional (2D) transition metal dichalcogenides (TMDs) alter their intrinsic optical and electronic properties, and such defects require investigation. Atomic-resolution techniques such as transmission electron mic
Externí odkaz:
https://doaj.org/article/192d1b4a7e7647f1855bfe5e3672e100
Autor:
Siva Pratap Reddy Mallem, Peddathimula Puneetha, Dong-Yeon Lee, Yoonkap Kim, Han-Jung Kim, Ki-Sik Im, Sung-Jin An
Publikováno v:
Nanomaterials, Vol 13, Iss 14, p 2132 (2023)
We used capacitance–voltage (C–V), conductance–voltage (G–V), and noise measurements to examine the carrier trap mechanisms at the surface/core of an AlGaN/GaN nanowire wrap-gate transistor (WGT). When the frequency is increased, the predicte
Externí odkaz:
https://doaj.org/article/eeb1a01611f54811be60aaebc476d026
Autor:
Dai, Mimi, Oh, Sung-Jin
We show that regular solutions to electron-MHD with resistivity can be continued as long as the time integral of the supremum of the current gradient remains finite. This dimensionless continuation criterion is analogous to the celebrated result of B
Externí odkaz:
http://arxiv.org/abs/2407.04314
Autor:
Jeong, In-Jee, Oh, Sung-Jin
It has been shown in our previous work that the incompressible and irresistive Hall- and electron-magnetohydrodynamic (MHD) equations are illposed on flat domains $M = \mathbb{R}^k \times \mathbb{T}^{3-k}$ for $0 \le k \le 2$. The data and solutions
Externí odkaz:
http://arxiv.org/abs/2404.13790
Autor:
Luk, Jonathan, Oh, Sung-Jin
We introduce a general method for understanding the late time tail for solutions to wave equations on asymptotically flat spacetimes with odd space dimensions. In particular, for a large class of equations, we prove that the precise late time tail is
Externí odkaz:
http://arxiv.org/abs/2404.02220
Autor:
Jinseok Choi, Seong-Gyu Park, Yeo-Jin Choi, Seung-Mun Baek, Han-Jung Kim, Yoonkap Kim, Ki-Sik Im, Sung-Jin An
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2157 (2022)
Graphene oxide (GO) is one of the interesting ink materials owing to its fascinating properties, such as high dissolubility in water and high controllable electric properties. For versatile printing application, the viscosity of GO colloids should be
Externí odkaz:
https://doaj.org/article/a5ef0c3ece1e40439ed0067a8c864355
The goal of the multi-sound source localization task is to localize sound sources from the mixture individually. While recent multi-sound source localization methods have shown improved performance, they face challenges due to their reliance on prior
Externí odkaz:
http://arxiv.org/abs/2403.17420
Autor:
Jeong, In-Jee, Oh, Sung-Jin
We prove the local wellposedness of the Cauchy problems for the electron magnetohydrodynamics equations (E-MHD) without resistivity for possibly large perturbations of nonzero uniform magnetic fields. While the local wellposedness problem for (E-MHD)
Externí odkaz:
http://arxiv.org/abs/2402.06278
Publikováno v:
Crystals, Vol 12, Iss 4, p 439 (2022)
We report the electrical properties of graphene grown via chemical vapor deposition (CVD-graphene) and oxidized using a KMnO4/dilute H2SO4 mixture. CVD-graphene was successfully oxidized without any pores or peeling off from the substrates. When the
Externí odkaz:
https://doaj.org/article/3f374ff3b5f34329ac471e6431fa810b
Autor:
Ki-Sik Im, Siva Pratap Reddy Mallem, Jin-Seok Choi, Young-Min Hwang, Jae-Seung Roh, Sung-Jin An, Jae-Hoon Lee
Publikováno v:
Nanomaterials, Vol 12, Iss 4, p 643 (2022)
We fabricated and characterized AlGaN/GaN high-electron mobility transistors (HEMTs) with a nano-sized in situ cap layer (one is a silicon carbon nitride (SiCN) layer, and the other is a silicon nitride (SiN) layer) comparing to the conventional devi
Externí odkaz:
https://doaj.org/article/bf5a99d37a354c29b64625679410418f