고분자-금속착물(Ⅳ)ㆍPolypropyleneimine-Ni(Ⅱ) 착물의 촉매활성도

金東洙,曺泰燮,石元慶,朴正學 嶺南大學校附設 基礎科學硏究所 1982 基礎科學硏究 Vol.2 No.-

이상의 실험결과로 보아 중합체 리간드 사슬에 치환기가 있거나, 분자량이 큰 중합체 리간드는 금속착물의 촉매작용을 증가시키는 것을 알 수 있으며, 치환기의 크기를 변화시키거나 증합체의 분자량을 조절함으로써 금속착물의 촉매작용을 조절할 수 있다는 것을 알 수 있다. 메틸기보다 더 큰 알킬기(에틸,n-프로필 등)를 가졌거나 여러가지 분자량을 가진 중합체 리간드로 된 금속착물의 합성 및 촉매활성도 조사가 현재 진행중에 있으며 이 실험결과는 이미 합성된 PPI 리간드의 분자량과 함께 다음의 완보에 발표될 것이다.

주파수 선별 광귀환에 의한 반도체 레이저의 주파수 튜닝

김학근,서동선 明知大學校 産業技術硏究所 1992 産業技術硏究所論文集 Vol.11 No.-

we present preliminary turning range of grating external-cavity semiconductor laser expected from simple models of laser gain spectra and an external-cavity laser. It is experimentally shown that the lasing waelength can be tuned up to 9 nm at the power mode coupling factor β = 0.35 with any coating on the laser facet.

새로운 3가 유기루테늄 착물의 합성과 반응

李東煥,金鶴九,徐大龍,金炳淳 동의대학교 기초과학연구소 1994 基礎科學硏究論文集 Vol.4 No.1

The paramagnetic organoruthenium (Ⅲ) complexes (η^5-C_5Me_5)RuCl₂(PR₃) (PR₃=PMe₃, PEt₃,PiPr₃, PCy₃, PMe₂Ph, PMePh₂,PPh₃, P(p-C_6H₄CH₃)₃, DPPE, DPPB, Py), (2a~2k) were synthesized by the reaction of [(η^5-C_5Me_5)RuCl₂]₂(1) with 1 equivalent of the corresponding phosphines (PR₃). The effective magnetic moment (μ_eff=1.65~2.07 B.M.) derived from the magnetic susceptibility measurements of the complexes (2a~2k) were consistent with the presence of a $quot;$quot;single$quot;$quot; unpaired electron in the molecule. Treatment of dichlororuthenium (Ⅲ) complex (η^5-C_5Me_5)RuCl₂(PR₃) (2) (i) with KBr in acetone afforded the dibromoruthenium (Ⅲ) complex (η^5-C_5Me_5)RuBr₂(PR₃) (PR₃=PPh₃), (ii) with sodium amalgam in diethylether led to th bis (phosphine) derivatives (η^5-C_5Me_5)RuCl(PR₃)₂(PR₃=PMe₃, PMePh₂), and (iii) with carbonmonoxide gave to the carbonyl derivatives (η^5-C_5Me_5)RuCl(PR₃)(CO) (PR₃=PMe₃, PPh₃).

몇가지 제일전이금속-폴리에틸렌이민 착물의 합성과 성질

김동수,박정학,조태섭 嶺南大學校府設 基礎科學硏究所 1983 基礎科學硏究 Vol.3 No.-

Cr(Ⅲ), Co(Ⅱ), Ni(Ⅱ) and Cu(Ⅱ) complexes with polyethyleneimine(PEI) as ligands have been prepared in absolute ethanol, and the structures of the complexes were chracterized by reflectance and infrared spectra. The structures of obtained complexes were pendant-type and polymer chelate type. [Cr(H₂O)₄ CI(PEI)CI₂] with pendant-type was insoluble in organic solvents, acids, DMF and DMSO, another complexes, [Co(PEI)]CI₂ [Ni(PEI)]CI₂ and [Cu(PEI)]CI₂ with polymer chelate were soluble in water. Especially, in aqueous solution, chlorides of [Ni(PEI)]CI₂ was substituted by H₂O.

태권도 정체성 확립을 위한 태권도복 연구

이송학,홍승달,신동윤 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

As Taekwondo is a symbol of the tenth representative cultures in Korea, it is selected to this effect that the correct aspect of Korea let the people widely know to the world. It means that it is to establish the identity in Korea The identity is en aspect that one it should be truly. Accordingly, the purpose of the tenth symbols is to correct our things wrong and distorted and let the whole world known the cultural excellence of Korea rightly. Accordingly, Taekwondo needs to have identity in order to fulfill that purpose, too, But, in the costume, Taekwondo does not have our traditional and original aspects. Accordingly, this study was to investigate the historical costume and idea. The purpose of this study was to establish the identity in Taekwondo as it was to suggest the traditional Taekwondo costume. The present official soft for Taekwondo practice is a pull-over-typed garment that obstructed the view and inserted into the head. It is similar to the traditional costume in Japan, and it did not present magnificent appearance in wearing and taking off. Accordingly. it needs to seek to chang into the front-opened costume that the front side is opened, restore our tradition. and present magnificent appearance in Taekwondo. Accordingly, this study was to suggest three stages of black belt kidder's suit. This research thought that the black belt holder's suit needed to the people given of leader's qualification only. It seemed to be valid that the player or general apprentice and the person without the leader's qualification were to wear the existing official suit, pursue the practicality, and prevent the confusion. As to three stages' suit, they were divided into the soft for the grader at the 4-5 grade, at the high-grade like 6-8 grade, and at the master-grade like 9 grade. It needs to take the upper garment from the existing pull-over-typed garment to the front-opened type. As to the difference by the stage, it found out that it could show the difference in each stage as the whether it faced the different color line to the collar, Doryori, sleeve edge, and pants' here, etc, or the difference of patterns. It was considered as 9 grade, a symbol of best stage, had to present magnificent appearance in wearing the suits with the whole traditionally honored colors. But, this study was insufficient in the research on the traditional color and pattern so it needs to follow-up research that reaches to that. And. it needs the scientific and ergonomic research about the materials of costume and suit consistent with the functionality. Also, it needs the aesthetic research in order that the dignity and position may be reflected on the suits for Taekwondo practice that the persons in martial arts have to show.

전립선암의 예측인자로서 전환대 전립선특이항원의 유용성

김현학,권동득,오봉렬,박광성,류수방,박양일 全南大醫大 2001 전남의대학술지 Vol.37 No.3

가토 외고정 모델을 이용한 치밀체형 세라믹스의 골결합능 평가

이재협,이동호,이재학,공현식,안영준,류현승,서준혁,홍국선,김환,장봉순,이춘기 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2

外國籍企業의 會計報告制度에 관한 硏究

朴範鎬,申東洙,蔡奎學,李均,金喆中 弘益大學校 1983 弘大論叢 Vol.15 No.1

In Accounting, a new problematic field has been recognized with the development and changes in industrialized society. An accounting system of a multinational corporation emerged from different accounting environments between one country and another. This environment can be summarized as follows; (1) Accounting measurement that affect financial position and management performance of an accounting entity are made by foreign currency, not by domestic currency or reporting currency of a parent company. (2) The exchange rate is not fixed, but fluctuating. (3) In case the foreign business activity is conducted by the foreign entity, separated from the parent company at home, the enterprise activity is done under entirely different circumstances. Such environmental changes in their fundamental effects upon accounting differentiate the meaning of a accounting measurement. Accounting reports by heterogeneous measurements has diminished in informative worth of accounting measurements because there are not secured comparability. Thus, as far as possible, accounting reports should be integrated to one financial statements, identically combined from different home and foreign accounting measurements. The reason that problems of accounting reports of multinational corporation has emerged into a new problematic field is to develop the theory and method to identify different accounting measurements. This paper is to suggest more reasonable directions of reporting system of accounting for multinational corporation, and to explore theoretical foundations of aaccounting report by clarifying the basic problems and characteristics of accounting standards of some countries and their reporting practices. For this purpose, this paper focuses on the discussion of the main subject as follows; (1) The sources and characters of the problems of accounting reports that emerged by the nature and characteristic activities of multinational corporation. (2) Analysis of some country's current accounting standards and reporting practices of multinational corporation. (3) More reasonable model building for accounting report with a view of external and internal management reports.

고분자-금속착물(I) : Preparation and Characterization of Water-Soluble Ni(II)-Polyethyleneimine Complexes 물에녹는 Ni(II)-Polyethyleneimine 착물의 합성과 성질

徐吉守,朴正學,金東洙,曺泰燮 嶺南大學校附設 基礎科學硏究所 1981 基礎科學硏究 Vol.1 No.-

Ni(Ⅱ) complexes with polyethyleneimine(PEI) as ligands were prepared in absolute ethanol by varying PEI/Ni(Ⅱ) mole ratio. The effects of PEI/Ni(Ⅱ) mole ratio and reaction temperature on the yield of the resulting complexes were investigated. It was observed that two types of octahedral complexes, [Ni(PEI)Cl₂] and [Ni(PEI)]Cl₂were obtained by varying PEI/Ni(Ⅱ) mole ratio from 0.5 to 7.0, and he structures of the complexes were characterized by ir and uv spectroscopy. The solubility behavior of the complexes in various organic and ionic aqueous solutions were also studied.

대기압 스트리머 코로나방전특성 및 이산화탄소 전환특성

조문수,김학규,곽동주,신용섭 경성대학교 공학기술연구소 2001 공학기술연구지 Vol.8 No.-

Deep interests have been paid on the application of non-thermal plasma technique th solve the environmental pollution problems. CO_2 is one of the severe pollutants which cause the acid rain and global warming. In this study, in order to improve the conversion efficiency of CO_2, the streamer corona discharge plasma and barrier discharge plasma reactors were made, and the conversion characteristics of CO_2 by the corona discharge plasma and some discharge characteristics of these discharge chambers are studied experimentally.