材料と環境 Vol. 71 (2022), No. 8
Backnumber
-
Vol. 73 (2024)
-
Vol. 72 (2023)
-
Vol. 71 (2022)
-
Vol. 70 (2021)
-
Vol. 69 (2020)
-
Vol. 68 (2019)
-
Vol. 67 (2018)
-
Vol. 66 (2017)
-
Vol. 65 (2016)
-
Vol. 64 (2015)
-
Vol. 63 (2014)
-
Vol. 62 (2013)
-
Vol. 61 (2012)
-
Vol. 60 (2011)
-
Vol. 59 (2010)
-
Vol. 58 (2009)
-
Vol. 57 (2008)
-
Vol. 56 (2007)
-
Vol. 55 (2006)
-
Vol. 54 (2005)
-
Vol. 53 (2004)
-
Vol. 52 (2003)
-
Vol. 51 (2002)
-
Vol. 50 (2001)
-
Vol. 49 (2000)
-
Vol. 48 (1999)
-
Vol. 47 (1998)
-
Vol. 46 (1997)
-
Vol. 45 (1996)
-
Vol. 44 (1995)
-
Vol. 43 (1994)
-
Vol. 42 (1993)
-
Vol. 41 (1992)
-
Vol. 40 (1991)
キーワードランキング
21 Jan. (Last 30 Days)
材料と環境 Vol. 71 (2022), No. 8
カラー写真と機械学習を用いた画像処理による鉄さび面積の測定
宇井 剛
pp. 231-236
DOI:
10.3323/jcorr.71.231抄録
A method using binarized image data is common to calculate the area of iron rust in a digital image system. However, iron rust includes red rust as well as black corrosion products, and it may be inappropriate to use binarized data. Therefore, we tried to evaluate with a 24-bit color image of sRGB. The areas of red rust, black corrosion products, and metal substrate of a small area iron rust image were visually judged, teacher data was created, and evaluation was performed using a support vector machine. As a result, the image was divided into each area, and the area and its ratio could be calculated.
不飽和ポリエステルをマトリクスとしたGFRPの弱アルカリ水溶液中での劣化特性
竹内 陽祐, 伊藤 陽, 笠原 久稔, 岡村 陽介, 玉松 潤一郎
pp. 237-244
DOI:
10.3323/jcorr.71.237抄録
To verify the applicability of glass-fiber reinforced plastics with an unsaturated polyester matrix in manhole environments, degradation characteristics in a weak alkaline aqueous solution were evaluated by conducting a solution immersion test. We were able to clarify that diffusion of alkaline ions is slower than that of water, effect of accelerated deterioration due to alkali remaining on the sample surface, resin fiber interface preferentially deteriorates due to the diffusion of water, and that the decrease in flexural strength is in good agreement with the logarithmic approximation formula.
論文アクセスランキング
21 Jan. (Last 30 Days)
-
Wettability of CaS against molten iron at 1873 K
ISIJ International 早期公開
-
Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer
ISIJ International 早期公開
-
-
Settling of Particle in Foaming Slag
ISIJ International Vol.64(2024), No.15
-
-
Effect of Cooling Rate on Microstructure, Phases, and Properties of Al-Si Coated Hot-Press-Forming Steel Sheets
MATERIALS TRANSACTIONS Vol.66(2025), No.1
-
-
Phase Equilibria of the Iron-rich Corner of the CaO–Fe2O3–Al2O3 System at 1240°C in Air
ISIJ International Vol.64(2024), No.15
-
Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon
ISIJ International Vol.64(2024), No.15
-
Terminal Settling Velocity of Particle in Suspension
ISIJ International Vol.64(2024), No.15
この機能はログイン後に利用できます。
下のボタンをクリックしてください。