South Korea
Country: KR
Acoustic energy harvesting using nanotube sheet flutter
Kang T.J., Jang E.Y., Lima M.D., Im H., Ovalle-Robles R., Kim T., Kim Y.H., Baughman R.H., Kim T., Kim Y.H., Seoul National University, KR
Energy harvesting from the surrounding environment has attracted much interest for diverse applications. One of the most widely available forms of ambient energy is acoustic noise, which is essentially inexhaustible and everywhere, however few research [...]
Dispersion of chemically-modified graphene and its applications
Han J.T., Kim J-S, Kim S-H, Kim J-S, Kim S-H, Jeong H.J., Jeong S.Y., Jeong H.J., Jeong S.Y., Lee G.W., Korea Electrotechnology Research Institute, KR
In this study, we present straightforward methods to produce large-area GO sheets with fewer defects on the basal plane and for addressing the problems associated with dispersing reduced GO nanosheets in organic solvents for applications. [...]
Hertz Elastic Contact in Spherical Nanoindentation Considering Infinitesimal Deformation of Indenter
Many studies have been performed to identify and analyze unusual nano-scale phenomena. Violation of Hertz elastic contact between the spherical nanoindenter and metallic materials has been discussed in previous studies. The unexpected results obtained using [...]
The effect of nanoparticles on the translucency and antimicrobial activities of experimental resin cements
The purpose of this study was to evaluate the effect of the nanoparticles in experimental resin cements on opacity (contrast ratio) and antibacterial activities. Experimental resin cements were prepared with three different kinds of fillers: [...]
Effect of γ-ray irradiated MWCNTs on electrical conductivity of a PET/graphite composites
The effects of a compoundingmethod and γ-ray treatedmultiwall carbon nanotubes (MWCNTs) on the electrical conductivity of graphite/PET composites were investigated. We found that dispersion of MWCNTs in the PET phase plays a critical role in [...]
The Study on Nanocellulose and Their Biocomposites
Lim D.-Y., Yoon M.-J., Yoon S.Y., Yoon M.-J., Yoon S.Y., Kim K-Y, Korea Institute of Industrial Technology, KR
Nanocelluloses with the average diameter below 100nm were successfully obtained by high shear fluid processor, microfluidizer. Their large surface area and the nano-scale dimensions can lead to the emerging materials for reinforcements in polymer composites, [...]
Far-infrared Radiation Properties of Poly(vinyl alcohol) Nanofibrous Membranes Containing Germanium and Silicon Dioxide
Far-infrared radiation effect and antibacterial properties were introduced in PVA nanofibrous membrane using germanium (Ge) and silicon dioxide (SiO2). Composite fibers containing Ge and SiO2 were fabricated at various concentrations of Ge and/or SiO2 using [...]
Oil Production from Waste Plastics & News Paper using Catalytic Dissociation on Noble Metal supported on Zeolite
Catalytic dissociation reaction of waste plastics and news paper was studied for oil production. SEM analysis were performed to find out crystal structure of prepared catalysts. GC-MAS analysis was also performed to find out product [...]