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컨테이너 B/L상의 "Unknown Clause"의 효력과 해석상의 유의점
한상현 강남대학교 사회과학연구소 2001 사회과학논총 Vol.12 No.-
Traditional, the marine(ocean) bill of lading(B/L) was made a major evidence documents of goods transport, under the contract of carriage by oversea. But, historically it has been many problem because of the Unknown Clause of Bill of Lading(B/L) under container carriage by rapid development of modern transport contrivance. According to, the purpose of this study is to survey the practical and legal characteristics of the Unknown Clause of bill of lading as traditional marine transport document. Especially, The important thing in this study is that the author put the stress on research and analyzes of the various problems which come to the Unknown Clause, which has been troubled in container marine transport between parties, particularly carrier and shipper under traditional B/L
L-Sorbose로 부터 L-ascorbic acid의 工業的 合成 方法에 關한 硏究
李光一,韓相鉉 光云大學校 1982 論文集 Vol.11 No.-
In the industrial synthesis process of L-Ascorbic acid from L-Sorbose, we point to a study about high yield according to lower production cost. In a synthesis process of di-acetone-L-sorbose from L-sorbose, we can reduce amount of acetone rather than conventional process of C.F. Cuiban and we gain high yield at low cost by use of calcium carbonate instead of sodium hydroxide. In a synthesis process of Di-Acetone-L-Keto-L-gulonic acid monohydrate from Di-acetone-L-sorbose, we use low cost sodium hypochlorite instead of potassium permanganate as oxidation agent and reduce amount of sodium hydroxide in oxidation reaction in basic catalyst. In a synthesis process of L-Ascorbic acid from Di-acetone-2-keto-L-gluonic acid monohydrate, we have gained higher yield by use of sulfuric acid instead of hydrochloricacid as acidic catalyst and we have removed industrial problems according to use of hydrochloric acid.
한상현 光云大學校 1990 論文集 Vol.19 No.-
Ti(OEt)₄의 열분해방법(CVE 방법)과 용액내에서 TiCl₄의 가수분해 방법(Wet 방법)에 의하여 Mica 상에 TiO₂를 흡착시킨 다음 X-ray Photoelectronic Spectroscopy로 조사한 결과 TiO₂의 peak가 2P⅔→465.3eV및 2P½→465.3+5.2e(CVD 방법)와 2P⅔→464.5eP½→464.5+6.0(Wet 방법)의 결과를 나타내었다. Mica 상에 흡착된 TiO₂를 Ar?+beam(5KV, 1.3μA)을 이용하여 120분간 sputtering 하여도 TiO₂의 넓은 Peak가 잔존하는 것으로 보아 특별한 형태의 강한 흡착상태를 이룬것으로 사려된다. 전자현미경적인 관찰에 의하면 TiO₂는 Mica 상에 cluster style의 multilayer로 흡착되었음을 관찰할 수 있었다.
韓相賢 瑞逸專門大學 1992 論文集 Vol.10 No.-
The shear strength of clay can be expressed as a function of the intergranular normal stress and the slope and intercept of the shearing resistance, effective stress relationship. Although of considerable practical utility, these terms do not indicate the mechanism of shearing resistance in fine-grained soils. Thus, a number of phenomena related to the shearing resistance of clays, such as the influence of loding rate on undrained shear strength, discrepancies between φ determined from undrained shear and consolidated-undrained shear tests, creep at constant volume, and stress relaxation as strains are arrested are poorly understood and difficult to deal with.