Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Yong-Ki Choi"'
Publikováno v:
Key Engineering Materials. 737:95-100
Recently, as the automotive and aerospace industry research has focused one weight lightening, the use of functional aluminum alloys has been increasing. Aluminum alloys are effective materials because of their high specific strength and high stiffne
Publikováno v:
Journal of The Korean Society of Manufacturing Technology Engineers. 25:445-451
Autor:
Soo-Jin Park, Yong-Ki Choi
Publikováno v:
Bulletin of the Korean Chemical Society. 37:830-834
Pitch-based activated carbon fibers were prepared for application to methane storage. Chemical activation was accomplished by treatment with potassium hydroxide and heat, leading to increased specific surface area and micropore volume. Structural pro
Publikováno v:
Journal of the Korean Geotechnical Society. 32:29-37
SSG (self-healing smart grouting) method, which is developed recently, has the characteristics such as an improvement of durability and waterproofing, prevention of leaching and pollution. In this study, we performed several tests such as gel-time me
Publikováno v:
Carbon letters. 17:18-28
【Global warming is considered one of the great challenges of the twenty-first century. In order to reduce the ever-increasing amount of methane (CH 4 ) released into the atmosphere, and thus its impact on global climate change, CH 4 storage technol
Autor:
Soo-Jin Park, Yong-Ki Choi
Publikováno v:
Journal of Industrial and Engineering Chemistry. 28:32-36
Sucrose-based microporous carbons were prepared for hydrogen storage. Carbon precursors were generated by ultrasonic and heat treatment of a solution of sucrose in sulfuric acid. Chemical activation was performed with KOH at various temperatures, lea
Publikováno v:
Journal of Mechanical Science and Technology. 29:2565-2571
The hematocrit is increased during hemodialysis and a stenosis is associated with the critical range of hemodynamic characteristics that are affected by the hematocrit. However, the effect of hematocrit on unsteady hemodynamic characteristics during
Autor:
Yong-Ki Choi, Soo-Jin Park
Publikováno v:
Carbon letters. 16:127-131
In this work, highly porous carbons were prepared by chemical activation of carbonized biomass-derived aerogels. These aerogels were synthesized from watermelon flesh using a hydrothermal reaction. After carbonization, chemical activation was conduct
Publikováno v:
Journal of International Council on Electrical Engineering. 1:1-6
Ship ballast water affects various marine species in a port or in a coastal area. The International Maritime Organization (IMO) adopted “the Convention on Ballast Water Management” in February 2004 and insisted that all ships be equipped with a b
Publikováno v:
Journal of the Korean Society of Marine Engineering. 34:880-886
In this paper, we studied the application of low pressure ultra-violet (UV) lamps for the development of an energy saving ship`s ballast water treat (BWT) device. We proposed the optimal arrangement of UV lamps by analyzing the energy radiated from m