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김영민,김도균,조광제,배용배,Kim Yungmin,Kim Dogyoon,Joe Gwangje,Bae Yongbae 대한전기학회 2005 전기학회논문지C Vol.54 No.12
We have developed shell type 765kV transformers for generator step-up. Our research and development for shell type 765kV transformers have been continued since 1990. The shell type 765kV transformers of single phase 3MVA for step-up and 500MVA for power transmission were developed in Dec. 1992 and Oct. 1996, respectively. 204MVA 765kV transformer for generator step-up was also developed with the basis of technique and experience to the present. Total 12 phases of 204MVA 765kV transformers will be delivered at Tangjin thermal power plant by 2006. This paper describes electrical and structural features of the shell type 204MVA 765kV transformer.
김영민,김치경,Kim, Young-Min,Kim, Chee-Kyeong 한국공간구조학회 2005 한국공간구조학회지 Vol.5 No.3
본 연구는 구조물의 정량적 강성설계 기법 개발, 즉 부재 단위의 강성 재설계를 통한 전역 자유도 변위의 정량적 조절 기법개발을 궁극적 목적으로 한다. 이를 위하여 본 연구에서는 전역 자유도에 대한 부재의 변위기여도계수와 내력기여도계수를 유도하고, 이를 이용하여 특정 변위를 정량적으로 예측, 제어할 수 있도록 부재 강성과 특정 변위간의 상관식을 유도 제시하였다. 간단한 예제 구조물의 해석과 제안식 적용을 통한 변위 예측값 사이의 비교를 통하여 제안식을 검증하였다. 정정구조물의 경우 본 상관식은 정해로서, 이를 이용하여 폭정 변위를 원하는 목표치로 정확하게 제어할 수 있으며, 부정정구조물의 경우에도 부재 내력 재분배에 의한 오차가 발생하기는 함에도 불구하고 각 부재 강성과 특정 변위간의 상관성과 경향을 제시함으로써 매우 유용하게 활용될 수 있다. 본 연구에서 제안하는 정량적 변위 제어 기법은 강성설계가 전체 설계 결과를 지배하게 되는 대 공간구조물 또는 초고층건물의 설계 시 유용할 것으로 기대된다. The paper presents a direct method for the diplacement control and stiffness redesign using displacement and response force contribution factors. At first, these two kinds of factors are derived and the relationship between them is examined. An equation to evaluate the change of displacement according to the change of each member stiffness is proposed. For the statically determinate structures, the proposed equation gives the exact solution with no approximation. But it has some error in case of statically indeterminate structures because the redistribution of response forces is neglected in the equation. However, the equation may be very useful even for statically indeterminate structures because it provides the relationship between the member stiffness and the global displacement. The proposed method is expected to be useful for the displacement control of large space or hi-rise building structures where the stiffness design governs the design result.
현대중국어 명사의 동태성 연구 - 전쟁류, 재난류, 자연현상류 명사와 동량사의 공기 양상 고찰을 중심으로 -
김영민 성신여자대학교 인문과학연구소 2018 人文科學硏究 Vol.37 No.-
This paper explains the co occurrence aspect between Action measure Words and Event Nouns which have the Dynamic Features of Noun Classes in Mandarin Chinese, and we discussed how the Event Nouns appear in sentences with Action measure Words. It was intended to identify the relevance and mutual constraints between the semantic classes of Event Nouns and the Action measure Words by the Mandarin Chinese corpus analysis. The analysis shows that the Action measure Words of Mandarin Chinese generally appears with the relevant class of Event Nouns and sentences depending on semantic Function. Specifically we extracted the usage of ‘Zai(在) + Yi(一) + Action measure Word + X + Hou(后)’ from Beijing University corpus, Dun(顿) co occur with Eat meaning Nouns, Reproach meaning Nouns : Chang(场) co occur with Natural phenomena meaning Nouns, Disease meaning Nouns, War meaning Nouns, Disaster meaning Nouns, Game meaning Nouns, Performance meaning Nouns, Dream meaning Nouns: Fan(番) and Tong(通) co occur with Speech act meaning Nouns, War meaning Nouns, Disaster meaning Nouns: Zhen(阵) co occur with Natural phenomena meaning Nouns, Disease meaning Nouns, War meaning Nouns, Sound meaning Nouns, Emotion meaning Nouns. As a result of the research, Chinese Action measure Words co occur with different kinds of Event Nouns depending on their semantic Function, and There is a high probability of co occurrence between War meaning Nouns and various of Action measure Words. This result is different from the previous study that Natural phenomena meaning Nouns have been regarded as the prototypical subclass in Event Nouns. This paper will prepare new studies into the re classification and subclassification of Event Nouns. 본 연구에서는 코퍼스 분석의 방법을 통해 현대중국어 명사 가운데 동태성을 띤 부류인 사건 명사와 각기 다른 동량사구와의 공기 양상을 고찰하여, 사건 명사와 동량사구 간의 의미 기능에 있어서의 관련성 및 상호 제약 관계를 파악하는 것을 목적으로 한다. 분석 결과, 중국어 동량사구는 의미 기능에 따라 상이한 부류의 사건 명사와 공기한다는 것을 알 수 있다. 구체적으로, 코퍼스에서 ‘(在) + 一 + 동량사 + X + 后’ 의 용례를 추출한 결과, ‘顿’은 ‘식음행위류’, ‘야단・질책류’ 어휘와 공기하고, ‘场’은 ‘자연현상류’, ‘질병류’, ‘전쟁류’, ‘재난류’, ‘경기류’, ‘공연류’, ‘꿈류’와 같은 어휘들과 공기하며, ‘番’과 ‘通’은 ‘발화류’와 ‘많은 시간과 노력을 투입하는 행위동작류’, ‘전쟁류’, ‘재난류’ 어휘들과 공기하고, ‘阵’은 ‘자연현상류’, ‘소리류’, ‘질병류’, ‘전쟁류’, ‘감정류’ 등의 어휘들과 공기한다. 동량사와 사건 명사의 공기를 통해, 사건 명사의 가장 원형적인 하위부류인 ‘전쟁류’, ‘재난류’, ‘자연현상류’ 명사 가운데 ‘전쟁류’ 명사가 동량사구와의 공기 범위가 가장 광범위함을 알 수 있었다. 이러한 결과는 기존의 사건명사 연구에서 ‘자연현상류’ 명사를 가장 원형적인 하위부류라고 여겨온 것과는 상이한 것이다. 사건 명사와 동량사구의 공기 양상 고찰은 향후 사건 명사의 재분류 및 하위 분류에 새로운 기준을 제시할 수 있다.
김영민,김기수,Kim, Young-min,Kim, Ki-soo 한국공학교육학회 2017 공학교육연구 Vol.20 No.4
The purpose of this study is to provide basic data and guideline to STEM(Science, Technology, Engineering, Mathematics) educators who prepare engineering education in elementary and secondary school. For this, this study develops a composition model for engineering education program of elementary and secondary school. To do this, a literature research, experts interview and Delphi survey were conducted. Through the literature research, we extracted the components of model for engineering education program of elementary and secondary school and then made a first draft of the model. The draft was revised by experts while Delphi survey was used to validate the model based on Delphi panels' opinions. The panels for the Delphi survey consisted of 51 experts in the STEM education field. The survey was conducted three different times and importance survey was included in the third stage. The conclusions of this study were as follows: First, the model consist of definition, 4 directions, 4 characteristics, 3 educational goals according to school level, educational contents area and element, teaching and learning method and evaluation method. The educational contents area and element consist of 2 major areas, 7 areas and 18 elements. Second, all components of the developed model were valid in most of the statistics such as mean, standard deviation, the degree of consensus and convergence, and CVR(Content Validity Ratio). Third, importance for education contents area and element according to the school level are analyzed.