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[en] This paper is intended to provide some thoughts for a listing of the Korean nuclear journals in the Science Citation Index(SCI), by an analysis of indicators based on the data gathered from relevant literature : Journal of Korean Nuclear Society(JKNS) and Nuclear Engineering and Technology (NET) as cited in the SCI source journal. The study examines as an indicator the number of papers in the JKNS and NET that have been cited by KAERI researchers in the SCI Source Journal (to the end of August 2006). This paper also gives a review of the statistics provided by the Institute for Scientific Information (ISI), as an authoritative source for an evaluation of a global cataloguing of scientific and technical journals, and suggests a view for a listing of the Korean nuclear journals in the SCI by a review of associated selection criteria and methods. It concludes there is a need to increase the number of citations in the SCI source journals of the NET papers to be published from the most recent previous two years
[en] According to grid dependency test and turbulent model comparison between the numerical simulation results and the empirical correlation, the SST turbulent model is more accurate than RNG k-ε model and Realizable k-ε model. But due to numerical stability, the SST model cannot be used. So Realizable k-ε model is used due to numerical stability and the acceptable accuracy. According to simulation results for the SMART Test model, there are similarity between the real SMART Reactor. When one of four reactor coolant pump is stopped, about 70% of the coolant is circulated and 30% coolant is bypassed. The FMHA Characteristics Test Module has similarity between the real SMART FMHA. According to multiphase simulation for the 1/6th model of the Characteristics test of an integral-type steam pressurizer, there are similarity between the Real model
[en] The Korean journal published in English, Nuclear Engineering and Technology (here under NET) has been enlisted in the global citation database SCI E(Science Citation Index Expanded) of Thomson Reuters (past ISI), beginning with NET vol.39 No.1 (Feb. 2007). As of July 2009, the citation index of NET as reported by JCR (Journal Citation Report) based on the cumulative data from ISI (Institute for Scientific Information) reached to 0.991. This index ranks on 12th among the 33 journals in the area of nuclear science and technology in the science and technology covered by JCR, meaning fairly high impact factor. The following year 2010, however, witnessed the JCR figure dropping down to 0.465. The reason behind such drastic fall would be the decreased citation and in a lesser extent self-citation in 2010, in comparison with 2009, despite the increased number of paper publication. This study attempts to give an analysis as of the end of 2011 on the NET citation frequency in SCI Source Journal and the citation frequency by KAERI authors, together with the nationalities of NET authors and SCI journals that refer to NET most. Based on the analysis, the paper suggests some ways to promoting the position of NET as a journal in the international nuclear sector
[en] To investigate effects of geometry on the magnetic properties of Ni nano-sized structures, we fabricated and characterized a continuous thin film, a honeycomb net structure, and a double ring structure, all with a thickness of 10 nm. There is difference in the magnetic properties between the honeycomb net and the double ring structures within the resolutions of our SQUID measurements. We compared the magnetic properties of the present honeycomb net structure of Ni to those of similar structures of Fe and Co.
[en] Single-walled carbon nanotube (SWCNT) films were prepared using a novel filtration-wet transfer process. The sheet resistance, optical transmittance, optical conductivity, dc conductivity and flexibility of the fabricated films were measured and compared with those of commercialized flexible indium tin oxide films. The shorter fabrication time, use of only water as the transferring medium, surface roughness of <3 nm, film thickness of <12 nm and maintenance of its electrical properties after film deformation make it an attractive material for flexible plastic electronics.
[en] Carbon nanoparticles (CNPs) were grown in the subsurface-region of porous SiO2 templates that had been subjected to plasma enhanced chemical vapour deposition. The over-layer multiwall carbon nanotubes (MWCNTs) grown in the surface region of the template were removed by a sonication process. Mechanical scrubbing of the template surface was used to remove the subsurface for investigation. The powder obtained was dispersed in ethanol onto copper-grids for characterization by electron microscopy, electron diffraction and micro-Raman spectroscopy. Elliptical, faceted and grape-shaped CNPs were observed by electron microscopy with electron diffraction patterns showing short range orderings. The Raman spectrum of the CNPs was found to be distinctly different from that of the over-layer MWCNTs in that the D-band (at ∼1385 cm-1) merged with the G-band (at ∼1552 cm-1). It seems that the CNPs in the subsurface-region grew simultaneously with the over-layer MWCNTs. A possible growth mechanism is proposed. The I-V characteristic of the CNPs, recorded by scanning tunnelling microscopy, was found to be asymmetric and characteristic of degenerately doped p-n junction diodes