Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Tae hyun Lee"'
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 685-696 (2022)
Although wire arc additive manufacturing (WAAM) of Ti alloys using gas metal arc yields a high deposition rate, cathode spots exhibit unstable behavior. In this study, the cold-metal-transfer process and an electrode-negative (EN) polarity were used
Externí odkaz:
https://doaj.org/article/d875274bd87b4907987ece3e56954f6f
Autor:
Kyung Ha Ryu, Yong-Hoon Shin, Jaehyun Cho, Jungho Hur, Tae Hyun Lee, Jong-Won Park, Jaeyeong Park, Bosik Kang
Publikováno v:
Nuclear Engineering and Technology, Vol 54, Iss 3, Pp 860-866 (2022)
An accurate prediction of the pressure drop along the flow paths is crucial in the design of advanced passive systems cooled by heavy liquid metal coolants. To date, a generic pressure drop correlation over spacer grids by Rehme has been applied exte
Externí odkaz:
https://doaj.org/article/704ba01b99ed497199026fa363777043
Publikováno v:
Nuclear Engineering and Technology, Vol 53, Iss 1, Pp 304-313 (2021)
Nickel base Alloy X-750, which is used as fastener parts in light-water reactor (LWR), has experienced many failures by environmentally assisted cracking (EAC). In order to improve the reliability of passive components for nuclear power plants (NPP's
Externí odkaz:
https://doaj.org/article/9d773565fe72410d959b4cfff3847f88
Autor:
Tae Hyun Lee, Kyung Ha Ryu, Hong Deok Kim, Il Soon Hwang, Ji Hyun Kim, Min Ho Lee, Sungyeol Choi
Publikováno v:
Nuclear Engineering and Technology, Vol 51, Iss 5, Pp 1381-1389 (2019)
Stress corrosion cracking (SCC) widely found in both primary and secondary sides of steam generator (SG) tubing in pressurized water reactors (PWR) has become an important safety issue. Using eddy-current tests (ECTs), non-destructive evaluations are
Externí odkaz:
https://doaj.org/article/b5436ba18e624ea2b0d100f1afc2f97a
Publikováno v:
Advances in Mechanical Engineering, Vol 12 (2020)
The initial design of baggage-lifting machine structures is primarily based on safety and reliability, but they are often damaged because of unforeseen circumstances and overloads. In this study, a machine learning–based logistic regression method
Externí odkaz:
https://doaj.org/article/38b65b24cbf14d2ea1448168632d7221
Publikováno v:
Metals, Vol 12, Iss 3, p 475 (2022)
Interest in research on the application of variable-polarity cold metal transfer mode in wire-based direct energy deposition has been growing; particularly popular are investigations into the respective influences of polarity, amplitude of the arc cu
Externí odkaz:
https://doaj.org/article/abb6a010d8694436bbd49265b8c27534
Autor:
Jong Eel Park, Tae Hyun Lee, Song Lim Ham, Lalita Subedi, Seong Min Hong, Sun Yeou Kim, Sang Un Choi, Chung Sub Kim, Kang Ro Lee
Publikováno v:
Antioxidants, Vol 11, Iss 3, p 482 (2022)
Wasabi (Wasabia japonica (Miq.) Matsum.) is a pungent spice commonly consumed with sushi and sashimi. From the roots of this plant, a new 2-butenolide derivative (1) and 17 previously reported compounds (2–18) were isolated and structurally charact
Externí odkaz:
https://doaj.org/article/a2a466a8c98a4b27aed3c1c4ab973c61
Publikováno v:
대한영상의학회지, Vol 75, Iss 5, Pp 363-375 (2016)
Purpose The aim of this study was to evaluate added value and diagnostic threshold value of thyroglobulin measurement in the fine-needle aspiration washout for detecting cervical lymph node metastasis from papillary thyroid cancer on pre and postope
Externí odkaz:
https://doaj.org/article/94090542e6614eefbae9676366344693
Autor:
Tae Hyun Lee, Won Se Suh, Lalita Subedi, Sun Yeou Kim, Sang Un Choi, Kang Ro Lee, Chung Sub Kim
Publikováno v:
Plants, Vol 9, Iss 9, p 1083 (2020)
Three new oleanane-type triterpenoidal glycosides, imbalosides A–C (1–3), were isolated from the white flowers of Impatiens balsamina. The structures of these phytochemical constituents (1–3) were elucidated through 1D and 2D Nuclear Magnetic R
Externí odkaz:
https://doaj.org/article/bc9abe17b6314e37ba8f0e8ad11db01a
Publikováno v:
Nuclear Engineering and Technology, Vol 47, Iss 1, Pp 102-114 (2015)
Background: A technique developed to produce artificial intergranular stress corrosion cracks in structural components was applied to thick, forged alloy 600 base and alloy 182 weld metals for use in the qualification of nondestructive examination te
Externí odkaz:
https://doaj.org/article/c61bbb2dede945bf882993f3b4e154ab