Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Dae-won Cho"'
Publikováno v:
Advanced Science, Vol 10, Iss 6, Pp n/a-n/a (2023)
Abstract In metal additive manufacturing (AM), arc plasma is attracting attention as an alternative heat source to expensive lasers to enable the use of various metal wire materials with a high deposition efficiency. However, the stepwise material de
Externí odkaz:
https://doaj.org/article/ea165e3731ce45488bd4a85e6d28f93c
Autor:
Seung-Kook Kim, Seo-jung Park, Dae-won Cho, Hong-suk Kwak, Hee-yon Jin, Su-hyun Eum, Eun-jung Heo, Gi-eun Kim, Ha-young Ji, Seung-jun Park
Publikováno v:
Frontiers in Surgery, Vol 9 (2022)
The coronavirus disease (COVID-19) pandemic has influenced hospital visiting patterns. Although vaccination has decreased infection rates and disease severity, hospital visiting patterns and associated treatment changes related to orthopedics remain
Externí odkaz:
https://doaj.org/article/683bdf749713473aa2bfb75243b2316b
Numerical Modeling of an Impinging Jet Flow inside a Thermal Cut Kerf Using CFD and Schlieren Method
Autor:
Upendra Tuladhar, Sang-Hyun Ahn, Dae-Won Cho, Dae-Hwan Kim, Seokyoung Ahn, Seonmin Kim, Seung-Hoon Bae, Tae-Kook Park
Publikováno v:
Applied Sciences, Vol 12, Iss 19, p 9557 (2022)
The dynamics of high-pressure gas flow injected through a nozzle during a thermal cutting process has an important effect on cutting performance. In this study, an actual gas flow condition inside a cut kerf of a plasma cut sample was simulated by co
Externí odkaz:
https://doaj.org/article/5cc3fba847ea4bc792733cca885eb1d1
Autor:
Ryoonhan Kim, Jeong Suh, Dongsig Shin, Kwang-Hyeon Lee, Seung-Hoon Bae, Dae-Won Cho, Won-Geun Yi
Publikováno v:
Metals, Vol 11, Iss 10, p 1516 (2021)
Laser shock peening creates compressive residual stress on the surface of the material, reducing stress corrosion cracking and increasing fatigue life. FE simulation of laser shock peening is an effective way to determine the mechanical effects on th
Externí odkaz:
https://doaj.org/article/ad7d16e43a5a4ea18315af207ff3495d
Autor:
Won-Sang Shin, Dae-Won Cho, Donghyuck Jung, Heeshin Kang, Jeng O Kim, Yoon-Jun Kim, Changkyoo Park
Publikováno v:
Metals, Vol 11, Iss 5, p 831 (2021)
The pulsed laser welding of Al ribbon to Cu sheet was investigated for the electrical interconnections in power electronic modules. The various experimental conditions with the different laser powers, scan speeds, and heat inputs were employed for ob
Externí odkaz:
https://doaj.org/article/2ea85d57298c45a085cf1583158e6283
Publikováno v:
RSC Advances. 13:2283-2293
(D–π–A)˙− & (D–π–A)˙+ are generated in response to electrical stimulation. Unlike (D–π–A)˙−, (D–π–A)˙+ shows a systematically controllable substituent effect by the DPA R group ranging from electron-withdrawing F to electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afcda2531afea878a2c90891a276960b
https://doi.org/10.1039/d2ra06460j
https://doi.org/10.1039/d2ra06460j
Publikováno v:
Journal of Welding and Joining. 40:533-539
To secure remote monitoring technology essential for dismantling nuclear power plants, this study measures the vibration signal of a base material using an accelerometer during the plasma arc cutting process, with the current and cutting speed used a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65b8425d934e6446fcdcec645bff7fc3
https://doi.org/10.5781/jwj.2022.40.6.9
https://doi.org/10.5781/jwj.2022.40.6.9
Publikováno v:
The Journal of Korean Institute of Information Technology. 20:99-105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c8fecba1df89d963d45f9518df2c7e2
https://doi.org/10.14801/jkiit.2022.20.4.99
https://doi.org/10.14801/jkiit.2022.20.4.99
Autor:
Suk Hyun Lim, Hannara Jang, Min-Ji Kim, Kyung-Ryang Wee, Dong Hyun Lim, Young-Il Kim, Dae Won Cho
Publikováno v:
The Journal of Organic Chemistry. 87:2289-2300
Finding a selective and efficient fragmentation process under ambient conditions is pivotal for the generation of fuels and chemical feedstocks from lignoceullosic biomass. In the present study, visible-light and amine-functionalized fullerene-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85f0a45f9ff554318743861a4b786dcd
https://doi.org/10.1021/acs.joc.1c01991
https://doi.org/10.1021/acs.joc.1c01991
Publikováno v:
Physical Chemistry Chemical Physics. 24:13074-13082
Comparing to Ir(ppz)3, Ir(ppz)2(LX) emits a red-shifted phosphorescence of caused by an interligand energy transfer between the ppz and LX ligands. Especially, Ir(ppz)2(picOH) showed an intramolecular proton transfer in the excited singlet state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1aa67a0048c92933599e15e4d90819b
https://doi.org/10.1039/d2cp01071b
https://doi.org/10.1039/d2cp01071b