Oh I.K.,Hanyang University |
Bae I.Y.,Far East University of South Korea |
Lee H.G.,Hanyang University
International Journal of Biological Macromolecules | Year: 2014
The influence of the ratio of soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) on the in vitro starch digestion, predicted glycemic index (pGI), and the physicochemical properties of fiber-enriched cakes were evaluated. The hydration and pasting properties were affected by the ratio of SDF and IDF. According to the increase of IDF ratio (SDF ratio reduction) in 3. g fiber-enriched cakes, slowly digestible starch (SDS) contents increased, while the rapidly digestible starch (RDS) contents decreased. The pGI values were significantly different with control in 3. g fiber-enriched cake containing more than 50% IDF contents (p< 0.05). But the pGI values of 6. g fiber-enriched cake samples were not significantly different by SDF and IDF ratio. With the exception of the SDF 100% cake, volume index, hardness, and color values of the fiber-enriched cakes increased according to reductions in the SDF ratio. The cakes containing 3. g of total dietary fiber (the same ratio of SDF and IDF) per serving were shown to have low pGI and acceptable quality attributes. Specially, total dietary fiber amount and IDF ratio are more effective than SDF ratio to lower the pGI value. © 2013 Elsevier B.V.
Han D.J.,Far East University of South Korea
Journal of Mechanical Science and Technology | Year: 2015
Complex harmonic analysis for rotor systems has been proposed from the strict complex modal analysis based upon Floquet theory. In this process the harmonic balance method is adopted, effectively associated with conventional eigenvalue analysis. Also, the harmonic coefficients equivalent to dFRFs in harmonic mode has been derived in practice. The modes are classified from identifying the modal characteristics, and the adaptation of harmonic balance method has been proven by comparing the results of the stability analyses from Floque theory and the eigen analysis. The modal features of each critical speed are depicted in quantitatively and qualitatively by showing that the strengths of each component of the harmonic coefficients are estimated from the order of magnitude analysis according to their harmonic patterns. This effectiveness has been verified by comparing with the numerical solutions. © 2015, The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.
Kim M.-S.,Far East University of South Korea
Transactions of the Korean Institute of Electrical Engineers | Year: 2015
The bearer of the power sector's ETS compliance cost is power consumer for the following reasons. Firstly, power companies are constrained in establishing approriate strategies to comply with ETS regulations due to the structural differences between the domestic power market anc emission trading system. In other words, because power companies do not have a right to determine price and production of electricity, they have to compete with other companies under disadvantaged conditions in the emission trading market. Secondly, because ETS compliance cost is part of power production. costs as it is also clearly written in the national greenhouse gas reduction road-map and the second energy supply plan, the cost should be included in power price following the power market operation rule. Thirdly, the most effective method to reduce carbon emissions in power sector is to reduce power demand, which is efficiently achieved through raising power price to a realistic level. Low power price in Korea is the major cause of rising power demand which is also the major cause of rising GHG emission. Therefore, power sector's ETS compliance cost should be included in power price to encourage power consumers' actions on reducing power consumption. Fourthly, when externality cost occurs in the process of delivering public services, usually beneficiary pay principle is applied to identify the cost bearer. Since electricity is one representative public good, the bearer of power sector's ETS compliance cost is power consumer. Yet method for calculating power sector's ETS compliance costs should be developed based on the following principles; imposing an appropriate level of financial burden on power producers in order to make it fair with other industry players, encouraging emission reduction actions to power companies, preventing power companies from creating windfall profits, and taking into account the structural characteristics of the domestic power sector. Copyright © The Korean Institute of Electrical Engineers.
Kang B.,Far East University of South Korea
Journal of the Korean Ceramic Society | Year: 2011
The optical band gap energy for SrTiO3 by reduction at high temperature was 3.15 eV. The reflectivity of reduced SrTiO3 single crystals showed little variation, however, the reflectivity by the reduction condition had no effect. For the phonon mode at about 790 cm-1, a blue-shift took place upon N2 reduction and the decreased. However, a red-shift took place upon a H2-N2 reduction and the increased at the same phonon mode. With decreasing temperature the dielectric constant decreased rapidly. The thermal activation energies were 0.92-1.02 eV.
Lee J.-W.,Far East University of South Korea
Development Policy Review | Year: 2014
Not only has there been a growth in the utilisation of non-standard workers in South Korea in recent years, but a qualitative shift has also occurred in the nature of contracting practices. This article attempts to improve understanding of this trend by shedding light on the contradictory nature of the contracting system, while also addressing problems associated with the deployment of an external labour force with fewer employment entitlements on user-firm sites, and the implications of these phenomena for employment practices and workers' rights. © The Author 2014.