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홍원표,양현수,강 용,강덕원 忠南大學校 産業技術硏究所 1988 산업기술연구논문집 Vol.3 No.1
With the growing need of the country's electrical energy from nuclear power generation, the technical importance on the load following has been widely recognized. The load following is being executed by two modes, Boron Regeneration System(BRS) and Boron Thermal Regeneration System(BTRS). Especially, the function of BTRS is solely relied on the efficient use of Boration/dilution in strongly basic resin bed. Therefore, the most influential factors to be investigated in load following operation is to determine the effect of boron concentration in burn-up reactivity and to find the way how to improve the BTRS in order for reusing all the reactor cooling water contaminated by radioactive wastes. This study is mainly devoted to the following purposes : (1) Evaluation of operation data in nuclear power plant about the relation of burn-up reactivity and boron dilution/ boration in BTRS. (2) Diagnostic suggestion on the solving problems in operation of Demineralizer(exchange resin bed).
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李悳源 成均館大學校 1977 論文集 Vol.24 No.-
By the photoelectron spectra is measured to the wide range of wavelength from the visible to X-rays, the Energy Level of elements are determined. Consequently, the photoelectron spectroscopic measurements show that the valence bands of elements are composed of the separate bands. With the photoelectron spectroscopy, it has been possible to obtain information about band structure and density of state in solid. In particular, it may be photoelectron measurement is suitable also for a chemical analysis.
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김원일,이진,이윤경,왕덕현,이관철 慶南大學校 附設 工業技術硏究所 1999 硏究論文集 Vol.17 No.-
본 연구에서는 엔드밀 절삭에서·버와 공구 마멸 특성에·관한 연구를 수행하였고 다음과 같은 결과를 얻을 수 있다. 출구 버의 생성은 알루미늄에서 절삭 깊이 1.5mm에서 0.1mm의 버가 발생되었고 황동은 그 보다 높을 0.2mm의 버가 생성되었다. 또한 측면 버에서도 황동이 알루미늄보다 높은 값을 보였으며 이것은 절삭에서의 버의 생성이 재료의 특성에 크게 기인함을 알 수 있다. 공구 마멸은 버의 발생이 많은 황동에서 크레이터 마멸과 날끝 마멸이 많이 발생됨을 알 수 있다. In this study, the properties of burr and tool wear in endmill cutting have been studied and the following conclusions could be obtained. As experimental results. exit burr height were obtained as 0.1mm for aluminum and 0.2mm for brass under the condition of 1.5mm in cut depth. And also side burr height for brass was higher than aluminum. It was found from the experimental results that burr formation in cutting largely depend on mechanical properties of machined materials. Tool wear properties of the brass, including crater wear and cutting edge wear, were also investigated.
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NiO에 있어서 Ni K-吸收端의 構造 및 chemical shift
金元泰,朴鍾允,李悳源 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2
We measured X-ray K-absorption spectrum of Ni in the Ni and NiO and determined chemical shift in the Ni K-absorption edge. The chemical shift of oxide nickel was different from that expected from the X-ray Photoemission Spectroscopy (X.P.S.). This result suggests that relaxation effects play on significant role.
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한일관계 '65년체제'의 기본성격 및 문제점:북·일수교에의 함의
이원덕 서울대학교 국제지역원 2000 국제지역연구 Vol.9 No.4
한·일 기본조약에 의해 성립된 한·일관계 65년체제는 시대적 상황의 엄청난 변화로 말미암아 바야흐로 근본적인 수정을 요구받고 있다.첫째로 65년 체제의 수립과 유지를 지탱해 왔던 국제냉전이 붕괴되었으며 남북한간의 적대적 대결관계도 화해와 공존의 관계로 급속하게 이행되어 가고 있다. 둘째로 일본인의 과거 식민통치에 대한 역사인식의 수준도 1965년 당시의 그것에 비하면 나름대로 상당한 진전을 이룩했다. 셋째로 한말의 일본식민화 과정을 규정한 구조약의 원인무효와 관련한 자료와 해석이 축적되고 있는 상황을 주목할 필요가 있다. 65년 체제의 근본적인 수정을 요구하는 이러한 상황전개는 필연적으로 북 · 일수교의 실현과정에서도 중대한 변수로 작용할 것으로 보인다. 일본정부는 과거사 청산문제와 관련하여 대북 수교의 체결을 한 · 일조약의 타결 수준에 맞추어 실현시키겠다는 시대착오적인 주장을 거듭 표명하고 있다. 그러나 향후 이루어지게 될 북 · 일 수교에서는 한 · 일조약 체제가 안고 있는 모순과 왜곡의 전철을 반복해서는 안되며, 오히려 북일 수교를 계기로 하여 한 · 일조약의 문제점이 시정되고 개선되어 진정한 한 · 일 양 민족간의 역사적 화해가 이루어질 수 있는 방안이 모색되어야 할 것이다. The'1965-Year System' of the South Korea-Japan relation is basically demanded for the fundamental amendments because of the radical changes of the various environments, First of all, the cold war structure which had supported the establishment and maintenance of the '1965-Year system' was collapsed, and the traditional hostile relation between the South Korea and the North Korea is shifting over that of the reconciliation and co-existence. Secondly, the level of so-called 'past problem cognition' of the Japanese people about the colonist rule of the Korean peninsula by the past Japanese imperialism was relatively progressed in comparative of that of the 1960s. In addition, it is needed to be worthy of notice the facts and evidences concerning the invalidity of the serious treaties which regulated the colonist rule were being accumulated. The changes of a series of situations are expected to be a important variable to reexaminate the normalization negotiation between the North Korea and Japan which is now under way. The japanese government are consistently making the statements that the level of agreement of the negotiation toward the North Korea should be adjusted to that of the treaty of 1965. But the argument of the Japanese government is regarded anachronic, considering the a series of changes of situations. In the process of the establishment of the North Korea-Japan normalization, the problems of the treaty of 1965 should not be reiterated. On the contrary, it is desirable that the North Korea-Japan Normalization process should be a good chance to revise the problems of the treaty of 1965, and be groping for the historical reconciliation between the Korean people and Japanese people.
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DENAR교합기 사용시 INTEROCCLUSAL RECORD의 정확도에 관한 연구
김덕송,진태호,조혜원 圓光大學校 1991 論文集 Vol.25 No.2
This study was performed to investigate the accuracy and availability of the interocclusal recording materials for Denar articulator and compare with the accuracy of the Pantronics. 15dental students in Wonkwang University were paticipated in this study and interocclusal recording materials used in this study were Wax(Modelling wax, Dentrey, England), Corpl wax(Surgident, Columbus Dental, U.S.A.), Impression compound(Pericompound, G-C, Japan)and Impression plaster(Xanthano, Bayer, Germany). The immediate side shift and protrusive condylar guidance were measured from Denar articulator(MarkⅡ,Denar Corp.) and Pantronic(Denar Corp.) The obtained results were as follows: 1. The mean values of left and right immediate side shift were some higher with Impression plaster and Wax, but there were no statistical difference. 2. The mean value of protrusive condylar guidance was higher with Impression compound, but there was no statistical difference. 3. All interocclusal recording materials used in this study were available for interocclusal record.
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