Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Junmo Ahn"'
Autor:
Yeon Hee Bhang, Kwan-Il Kim, Jaehyo Kim, Junmo Ahn, Hwan-Su Jung, Changsop Yang, Seok-Jae Ko, Youngmin Bu, Jae-Woo Park, Kyoung Sun Park, Hee-Jae Jung, Jun-Hwan Lee, Beom-Joon Lee
Publikováno v:
Trials, Vol 21, Iss 1, Pp 1-10 (2020)
Abstract Background Gastroesophageal reflux disease (GERD) is a major cause of chronic cough. GERD-induced chronic cough is difficult to diagnose because some patients do not complain of any gastrointestinal (GI) reflux symptoms. Although chronic cou
Externí odkaz:
https://doaj.org/article/faa636c7aa37419fb220218ab8c6acb9
Publikováno v:
Remote Sensing, Vol 11, Iss 7, p 777 (2019)
Infrared signature analysis that considers both the target and background is fundamentally important to the development of target detection systems as well as in the design of ships for thermal stealth. This paper presents the analysis results of lon
Externí odkaz:
https://doaj.org/article/58dbfef44b0c4d0a8cb9c1a9c9e1f761
Publikováno v:
Micromachines, Vol 9, Iss 10, p 495 (2018)
Remote measurements of thermal radiation are very important for analyzing the solar effect in various environments. This paper presents a novel real-time remote temperature estimation method by applying a deep learning-based regression method to midw
Externí odkaz:
https://doaj.org/article/25e9519e12b44664b73818529e56e8c5
Publikováno v:
Geosystem Engineering. 25:194-201
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 43:969-977
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 43:390-401
Methanesulfonic acid was proven to be an alternative lixiviant for copper leaching from chalcopyrite with hydrogen peroxide as an oxidant. Two alternative oxidants, dichromate and nitrate, were stu...
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 42:38-45
An investigation on copper leaching from a chalcopyrite concentrate in methanesulfonic acid (MSA) and hydrogen peroxide at 75°C was carried out. Periodic additions of H2O2 were applied to enhance c...
Publikováno v:
International Journal of Minerals, Metallurgy, and Materials. 26:1239-1246
An environmentally friendly organic biosorbent was fabricated using hay by succinylation. Metallic cation adsorption tests were performed using synthetic nickel(II) and cadmium(II) solutions to simulate heavy-metal recovery from aqueous solution. The
Publikováno v:
Hydrometallurgy. 187:54-62
Methanesulfonic acid (MSA) is an organic acid and was used to leach copper from chalcopyrite. MSA is a strong acid with higher solubility of various metals. A suite of leaching tests of chalcopyrite at 75 °C with various lixiviants exhibited that MS
Publikováno v:
Korean Journal of Metals and Materials. 57:245-250
Copper leaching from low-grade copper ore samples obtained from two active mines in the US, named conichalcite (sample A) and chalcopyrite (sample B), were studied under different leaching conditions using sulfuric acid and methane sulfonic acid (MSA