Author: Seongju Hong
-
2021.01.16(pm): Prevention of Red Scale Formation during Hot Rolling of Steels
authors : Hikaru Okada, Tomoki Fukagawa, Haruhiko Ishihara, Atsuki Okamoto, Masatoshi Azuma, Yukio Matsuda link : https://doi.org/10.2355/isijinternational.35.886 abstract : Red scale defects usually observed in high Si hot rolled strip were reproduced in a laboratory 3 stand tendem mill. The effects of hot rolling and descaling conditions on the strip surface color and scale structure were examined.Irrespective of Si content…
-
2021.01.16(pm): Mechanism of Red Scale Defect Formation in Si-added Hot-rolled Steel Sheets
authors : Tomoki Fukagawa, Hikaru Okada, Yasuhiro Maehara link : 10.2355/isijinternational.34.906 Abstract : The red scale, which is one of the major defects on hot-rolled Si added steel sheets, is reproduced experimentally. On the basis of detailed observation of the scale properties, we propose the mechanism of formation of the red scale. Imcomplete descaling of FeO prior…
-
2021.01.16(am): Kinetics of High Temperature Oxidation of High Carbon Steels in Multi-component Gases Approximating Industrial Steel Reheat Furnace Atmospheres
authors: H. T. Abuluwefa link: https://www.researchgate.net/publication/286600352_Kinetics_of_High_Temperature_Oxidation_of_High_Carbon_Steels_in_Multi-component_Gases_Approximating_Industrial_Steel_Reheat_Furnace_Atmospheres abstract:The isothermal oxidation behaviour of some carbon steels under various experimental conditions was investigated. The composition of oxidation atmosphere used in this work was chosen to approximate atmospheres found in industrial steel billet reheat furnaces. In order to study the effect of adding each gaseous component in these atmospheres experiments were…
-
2021.01.10(am): BNN(Bayesian Neural Network)
Machine learning blind spots In 2015, there was a controversy when Google AI recognized black people as gorillas. This shows the blind spot of AI. Humans can distinguish between chicken and poodle, but because the machine separates the image with an algorithm, the pictures below can be recognized as the same picture. Similar examples include…
-
2020.09.26~10.04: Chuseok holiday
Chuseok is one of the biggest holidays in Korea, and is a day off to celebrate the fall harvest during the days of farming. The picture below is the Chuseok ceremony of my grandmother’s house. This ritual is usually held between 6 am and 8 am. The following is the work to prepare the table…
-
2020.10.19(pm): Sum of three different prime numbers
This article was written based on the Sample Problem of YBM COS Pro Level 1 Certification Exam. Problem You want to find a number that represents a number as the sum of 3 different decimals. For example, 33 can be expressed in 4 ways. 3+7+233+11+193+13+175+11+17 Given a natural number n as a parameter, we want…
-
2020.08.15~23: Summer Vacation (3) Haeundae
On this summer vacation, I went to Paradise Hotel Busan with my grandmother. The hotel view is great. Ocean-terrace view. We enjoyed a moment of relaxation in the hotel. This is the Seamer Spa. It’s cool. It looks down from the bottom of the hotel, isn’t it pretty? Hotel breakfast. I had breakfast and the…
-
2020.08.15~23: Summer Vacation (2) Cats
The second post is about street cats. My aunt feeds the street cats in the neighborhood every day. Twice a day. She goes to get food even in the rain and in the heat. The cats are blessed. The first cat is black. She had three children a while ago. She is resting in the…
-
2020.08.15~23: Summer Vacation (1) Home foods
In the first post of summer vacation, I’m going to show you the foods I ate at home. The first is the squid dish, and it is a squid stew that became a hot topic on TV recently because Mr. Trot’s Lim Young-woong ate it. The second is octopus sashimi. It was very soft and…
-
2020.08.29(pm): Deep Learning with PYTORCH
I wrote this post with a tutorial on ending deep learning in 60 minutes via the link below.https://tutorials.pytorch.kr/beginner/deep_learning_60min_blitz.html What is PYTORCH? A Python-based scientific computation package targeted at two groups: When computing using GPU is required while replacing NumPy When you need a deep learning research platform that provides maximum flexibility and speed First, let’s…