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가시광선영역에서 shade guide에 따른 광투과도 특성 연구
최근배,박찬운,송창용,고석민,Choi, Keun-Bae,Park, Charn-Woon,Song, Chang-Yong,Ko, Sok-Min 대한치과보철학회 2000 대한치과보철학회지 Vol.38 No.2
The purpose of this study was the evaluation of spectral transmission of the commercial three shade guides and the relationship of hue, value, and chroma according to the transmission rate. The spectral transmittance of three shade guides - Vita Lumin Shade Guide, Vintage and Unibond Shade Guide, and Vitapan 3D-Master Shade Guide - were measured. For direct transmission measurements, each shade tabs were placed at the entrance port of the 1mm diameter intergrating sphere. The intensity of the light source passing through the shade tabs to the right angle was continuously recorded for wavelength from 400 to 700 nm. A transmission spectrum and digital data were obtained for each measurement and they were evaluated using Microcal Origin program. The obtained results of this study were as follows : 1. In Vita Lumin Shade Guide, sum of the transmission rate of the shade tabs at the wavelength 400-700nm was decreased in agreement with the arrangement order at each A, B, C, D group, except D4 shade tab. However, there were no relationships between the transmission rate of the shade tabs and the value-oriented. 2. In Vintage and Unibond Shade Guide, sum of the total transmission rate of the shade tabs was decreased in agreement with the arrangement order at each A, B, C, B group. When all shade tabs arranged in value-oriented, transmission rate was accord with the order, except D4 shade tab. 3. When shade tabs of the Vitapan 3D-Master Shade Guide have the same value and hue, sum of their total transmission rate decreased in accordance with the chroma-oriented. When the shade tabs have the same value and chroma, there were no differences from the order of the transmission rate to the various hue type. However, in the 'R' tabs of reddish hue type, the transmission rate increased at the long wavelength range area. In conclusion, we need the quantitative analyzing instruments in transmission determination. Vitapan 3D-Master Shade Guide covers the tooth color space taking into account the parameters of the systematic value, chroma, hue oriented, and the transmission rate relatively accorded with that sequence.
최근배 한국해양비즈니스학회 2016 해양비즈니스 Vol.- No.35
Since 2008’s worldwide financial crisis, global marine transport industry has been in a crisis and Korean shipping industry is in the same situation. So Hanjin Shipping was under legal management in Korea and global shipping companies are reorganizing new shipping alliance among them. In spite of these difficulties, Busan port has to develop and grow up to hub port. In order to achieve this goal, Busan Port Authority(BPA) has to establish medium-and long term growth strategies that can make higher value- added port. In this study, four strategies were suggested, but I think that there are more important things than individual and concrete strategies. Port provides customer port logistics related-services and customers enjoys those services that port provide. The customers of port are global liner, global manufacturer, cruiser liner and cruiser tourists etc. As service providers, BPA has to endeavour to know the customer’s needs. Moreover BPA has to try to satisfy their requirements consistently. The best way to create the value-added in Busan port is to provide an environments that can create value-added using the Busan port by the global manufacturer and global liner. Because port’s role has been changing from the place of loading/unloading to space of creating the valud-added. If BPA will plan and execute growth strategy with their customers, the future of BPA and Busan port will be positive.
한국 상법과 로테르담 규칙 상 선화증권의 채권적 효력에 관한 비교 연구
최근배 한국무역보험학회 2013 무역금융보험연구 Vol.14 No.4
본 연구는 한국 상법과 로테르담 규칙에서 나타난 선화증권의 채권적 효력에 관한 내용을 비교 분석하고자 하였다. 여기서 양 규정의 입법 태도는 송화인과 운송인 사이에서 추정적 증거력, 그리고 선화증권 소지인과 운송인 사이에서는 결정적 증거력을 수용함으로써 기본적 입장은 크게 달라 보이지 않았으나, 구체적이고 세부적 상황에서 로테르담 규칙이 훨씬 개방적이고 포괄적인 증거력을 인정함에 따라 향후 상법의 개정을 검토할 시점에는 이와 관련하여 보다 긍정적인 검토가 필요할 것으로 판단된다.
BIRGET-RHODES EXPANSIONS OF TOPOLOGICAL GROUPS
최근배 장전수학회 2013 Advanced Studies in Contemporary Mathematics Vol.23 No.1
Let G be a non-trivial topological group with identity 1, and let C1(G) be the semilattice of all compact subsets of G containing 1. In this paper, we investigate some algebraic and topological structures of the inverse monoid ˜˜GRc= {(A, g) 2 C1(G) × G : g 2 A}. When G is compact group, it is shown that under the Vietoris topology on C1(G), ˜˜GRc is a topological inverse monoid whose maximum group image is topologically isomorphic to G and that the Birget-Rhodes expansion ˜˜GR of the group G is dense in ˜˜GRc . We also investigate Green’'s relations on ˜˜GRc.