Zobrazeno 1 - 10
of 50
pro vyhledávání: '"JAEGU CHOI"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 425-428 (2024)
In this study, the effect of 3 mass%Cu additions on microstructure formation and Cu segregation in 800 MPa grade ductile cast iron during solidification was investigated. The calculated phase diagram showed that after the addition of 3 mass%Cu, the C
Externí odkaz:
https://doaj.org/article/0b6bf52b12504bfcb0440e76d8b6044f
Publikováno v:
Metals, Vol 13, Iss 12, p 1999 (2023)
The leak-before-break design concept is based on J-R curves, which are obtained by J-R tests on various types of specimens and are known to be dependent on the cyclic load history. The J-R curves of standard specimens suggested by the American Societ
Externí odkaz:
https://doaj.org/article/d7b124878ca942418893f3115bb380cc
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 2, Pp 2011-2020 (2019)
21-4N austenitic heat-resistant steel is widely used as the material for automobile engine valves because of its high strength, excellent creep resistance, oxidation resistance and corrosion resistance under high-temperature circumstances. Engine val
Externí odkaz:
https://doaj.org/article/69541c81b3604796a1f59cae559c917d
Publikováno v:
Sensors, Vol 20, Iss 9, p 2634 (2020)
Industrial high-energy X-ray imaging systems are widely used for non-destructive testing (NDT) to detect defects in the internal structure of objects. Research on X-ray image noise reduction techniques using image processing has been widely conducted
Externí odkaz:
https://doaj.org/article/6f4a6ce2c4cf442aa2805a81c211488a
Publikováno v:
Medical Physics.
Publikováno v:
The British journal of radiology. 95(1139)
Objective: To improve the detection of lung abnormalities in chest X-rays by accurately suppressing overlapping bone structures in the lung area. According to literature on missed lung cancer in chest X-rays, such structures are a significant cause o
Publikováno v:
Journal of Mechanical Science and Technology. 34:1855-1862
To increase efficiency and reduce greenhouse gas emissions, the operating temperatures of combined power plants have increased. As a result, high-pressure turbine (HPT) blades are subjected to increasingly harsh operating conditions, which cause ther
Publikováno v:
Journal of Mechanical Science and Technology. 33:3375-3381
Plumbing is necessary for boilers and heat exchangers and in buildings and power plants, including those that produce green energy. Further, among all the components used in plumbing, piping systems are subjected to high temperatures and pressures. A
Publikováno v:
International Journal of Pressure Vessels and Piping. 172:227-232
To apply the leak before break concept to nuclear pipes, obtaining the fracture characteristics of nuclear pipes from real pipes would be ideal. But, conducting such experiments is difficult due to its efficiency and cost. Therefore, many specimens a
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 20:1241-1253
To improve the efficiency of vehicle engines and reduce greenhouse gas emissions, the operating temperature tends to increase. Thus, it is very important to evaluate the durability performance of engine valves under high-temperature environments. The