Zobrazeno 1 - 10
of 651
pro vyhledávání: '"Ji-Won Choi"'
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 12, Pp 5269-5280 (2024)
The complexity of ex-vessel phenomena during a severe accident limits the most previous CFD applications only to hydrodynamic aspects. The present study performs numerical analysis of jet breakup and debris bed formation under intensive steam generat
Externí odkaz:
https://doaj.org/article/a23b26ae94574dc0a0fd8544da8eb659
Publikováno v:
Polymers, Vol 16, Iss 13, p 1855 (2024)
The purpose of this study was to evaluate a resin based pit and fissure sealant containing 45S5 bioactive glass (BAG) by examining its ion release, pH variation, and apatite-forming properties. To prepare the experimental materials, 45S5 BAG, used as
Externí odkaz:
https://doaj.org/article/29eee989eec440d6a495dc964ca0cef2
Publikováno v:
npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-7 (2023)
Abstract Solution-based processable high-k 2-dimensional (2D) ferroelectrics have attracted significant interest for use in next-generation nanoelectronics. Although few studies on potential 2D ferroelectric nanosheets in local areas have been conduc
Externí odkaz:
https://doaj.org/article/3819f99b1aa9435795712d38248945b7
Publikováno v:
Biomaterials Research, Vol 27, Iss 1, Pp 1-15 (2023)
Abstract Background White Portland cement is a calcium silicate material. It exhibits antibacterial properties and is biocompatible. In addition, calcium silicate-based materials are known to release calcium ions and form apatite. The purpose of this
Externí odkaz:
https://doaj.org/article/a49fbc43ec514621a5a901b3f976ea49
Autor:
Ahrom Ryu, Ji-Hun Park, Dong Won Jeon, Jae-Hyeon Cho, Haena Yim, Keun Hwa Chae, Seong H. Kim, Sahn Nahm, Sung Beom Cho, Wook Jo, Ji-Won Choi
Publikováno v:
Journal of Materiomics, Vol 11, Iss 3, Pp 100907- (2025)
Doping and substitution methods are predominantly employed in the synthesis of ceramics to achieve their desired functional properties. We studied the behavior of excessive dopants in addition to an existing stoichiometric composition using a high-th
Externí odkaz:
https://doaj.org/article/f449dd8623d44dfc9459fe47fd5785ba
Autor:
Ji-won Choi, Ludvik Alkhoury, Leonardo F. Urbano, Puneet Masson, Matthew VerMilyea, Moshe Kam
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
Abstract Computer-Assisted Semen Analysis (CASA) enables reliable analysis of semen images, and is designed to process large number of images with high consistency, accuracy, and repeatability. Design and testing of CASA algorithms can be accelerated
Externí odkaz:
https://doaj.org/article/224cc00fd47f47548bb3d2e54970e7cc
Autor:
Narendra S. Parmar, Haena Yim, Lynn A. Boatner, Panithan Sriboriboon, Yunseok Kim, Kyung Song, Jung‐Hae Choi, In Won Yeu, Ji‐Won Choi
Publikováno v:
Advanced Electronic Materials, Vol 9, Iss 7, Pp n/a-n/a (2023)
Abstract Three‐dimensional (3D) charge‐written periodic peak and valley nanoarray surfaces are fabricated on a (112¯0) ZnO single crystal grown via chemical vapor transport. Because the grown ZnO crystals exhibit uniform n‐type conduction, 3D
Externí odkaz:
https://doaj.org/article/8db35af0d2274809a4b7febfbf3effa4
Autor:
Krishnamohan Thekkepat, Hyung-Seop Han, Ji-Won Choi, Seung-Cheol Lee, Eul Sik Yoon, Guangzhe Li, Hyun-Kwang Seok, Yu-Chan Kim, Jae-Hun Kim, Pil-Ryung Cha
Publikováno v:
Journal of Magnesium and Alloys, Vol 10, Iss 7, Pp 1972-1980 (2022)
Formation of galvanic cells between constituent phases is largely responsible for corrosion in Mg-based alloys. We develop a methodology to calculate the electrochemical potentials of intermetallic compounds and alloys using a simple model based on t
Externí odkaz:
https://doaj.org/article/3d82c1c2d07245d9a3c33ab6adf67cf7
Publikováno v:
Applied Sciences, Vol 13, Iss 13, p 7887 (2023)
Zinc (Zn) coatings, which are widely used to protect metals from corrosion, can be further improved by alloying with nickel (Ni). Increasing the Ni content enhances the corrosion-resistant properties of the Zn coating. This study investigated the eff
Externí odkaz:
https://doaj.org/article/28aad7ff7318458791986a2f79582e2b
Autor:
JeongJun Kim, Ji-Won Choi
Publikováno v:
Journal of Asian Ceramic Societies, Vol 9, Iss 3, Pp 916-925 (2021)
Herein, we present the structural and electrical properties of layered titanate, the precursor of an ideal two-dimensional (2D) nanosheet. A K0.8Ti1.73Li0.27O4 (KTLO) sample was synthesized by the flux method to maximize the area of the, relative to
Externí odkaz:
https://doaj.org/article/ae330a1877894725b0570cc8189672d4