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파일길이비와 파일설치각도에 따른 마이크로파일 수평지지특성
오정배,권오엽,황태현,허인구,신종호 한국지반공학회 2015 한국지반공학회논문집 Vol.31 No.6
언더피닝 공법으로 주로 활용된 마이크로파일은 신설 구조물지지와 사면안정 등 활용목적에 따라 현장에 많이적용되고 있다. 그러나 이와 같이 활용됨에도 불구하고, 마이크로파일의 수평지지특성에 관한 연구는 미흡한 실정이다. 이에 본 연구에서는 파일설치조건에 따라 달라지는 마이크로파일의 수평지지특성을 알아보기 위해 모형시험을수행하였다. 시험결과, L/d ≤20의 경우에는 = +30°, L/d ≥ 60인 경우 = -30°인 마이크로파일의 수평지지력을 효과적으로 증가시키는 것으로 나타났다.
슬러티드 링 통신망에서 입력 광 펄스 형태에 따른 완전 광 패킷 교환 노드의 패킷 오율
오정배,신종덕,김부균 한국통신학회 2001 韓國通信學會論文誌 Vol.26 No.5
광섬유 지연선로 정합 여파기를 광 패킷 어드레스 처리기로 사용한 완전 광 패킷 교환 노드들로 구성된 슬러티드 링 통신망에서 가우시언, 2차 초가우시언, 그리고 RZ 구형파 형태의 입력 광 펄스에 대한 노드의 패킷 오율 변화에 관하여 고찰하였다. 전송속도의 증가에 따라 모든 입력 펄스 형태에 대해 패킷오율이 증가하였고, 산탄 잡음의 영향이 크게 나타났다. 패킷 오율 $10^{-9}$에서 전송속도가 같은 경우에는 가우시언 펄스, 2차 초가우시언 펄스, RZ 구형파 순으로 첨두 파워가 증가한 반면, 펄스 에너지는 모든 펄스 형태에서 거의 같게 나타났다. 넓은 펄스폭을 갖는 가우시언 펄스는 대역폭 감소로 인해 잡음 전력이 감소하는 효과보다, ISI로 인한 각 어드레스 코드의 상관 출력레벨 변동으로 발생하는 파워 패널티 효과가 더 크게 나타났다. 따라서, ISI에 의한 영향을 최소화하기 위해서는 가우시언 펄스의 rms 폭을 1/(4B)이하로 유지해야 함을 알 수 있었다.
吳正培 동북아시아문화학회 2010 동북아 문화연구 Vol.1 No.22
The main aim of this study is to clarify the contents and the structure of the image of Japanese people held by Korean university students. In order to ascertain contemporary images of Japanese people correctly and systematically, the survey was conducted in two phases. First, a free response style survey on images of Japanese people was conducted among 527 Korean university students in Korea. Respondents’ reported images of Japanese people were classified into 23 categories. Second, an inventory survey was conducted among 589 Korean university students in Korea. Five factors of the Japanese images were extracted by factor analysis of the data. The findings are as follows. 1) There are five viewpoints ―“invader / ruler”, “person who is principled but solicitous”, “self-depicter”, “person who does not self-disclose”, “hard worker”― at the root of the Japanese images among Korean university students. 2) The image of Japanese people among Korean university students is highly concrete and compound. 3) Awareness of Japanese people among Korean university students is changing from an awareness of them as Japanese citizens to a recognition of Japanese people as communication partners.
한국어 학습자의 한국인 이미지의 특징과 형성요인 : 일본인 대학생 학습자와 비학습자의 비교
오정배 한국외국어교육학회 2012 Foreign languages education Vol.19 No.4
The main aim of this study is to explore images of Korean people held by Japanese Korean university learners and non-learners. This study examines (1) differences in the image of the Korean held by learners and non-learners of Korean; and (2) the factors that influence differences in that image. Respondents were 511 Japanese university undergraduate students (257 learners of Korean and 254 non-learners) living in Japan. In order to ascertain contemporary images of Korean people held by respondents, a free response task was used Respondents’ reported images of the Korean were classified into 24 categories. First, the frequency of response among the 24 categories between learners and non-learners was compared. Findings showed that images related to personal relations were more frequent among Korean language learners, whereas stereotypical images were less frequent compared to non-learners. Second, factors and information sources that influenced the images reported by learners and non-learners were compared. Results indicated four possible factors leading to the differences in the image of Korean people held by learners and non-learners: personal contacts with the Korean, watching Korean dramas, knowledge obtained from Korean language classes, and variety of information sources.
韓国人大学生の日本人イメージの形成メカニズム―イメージ形成の因果モデルの提案―
오정배 한국일본학회 2010 日本學報 Vol.83 No.-
本研究は、日本人という集団に対するイメージが日本人とのコミュニケーションを阻害しうる側面に注目し、韓国人大学生の日本人イメージの形成メカニズムを詳細に記述することと、日本語学習の影響を明らかにすることを目的としている。2段階の大規模な質問紙調査から得られたデータに因子分析と回帰分析などの統計分析を加え、最終的には「侵略者・支配者」「気遣う原則主義者」「自己表現者」「非自己開示者」「働き者」という5つのイメージの形成に関する因果モデルを導き出した。本研究の結果、1)「侵略者・支配者」イメージは社会化(socialization)の過程で教育やマスメディアを通して形成され、社会的に共有されていること、2)「気遣う原則主義者」イメージは日本人のコミュニケーション行動の特徴に関する内容であることが示唆された。日本語学習の影響については、1)日本語の授業による直接的な影響と、日本語の上達による間接的な影響が存在すること、2)社会的に広まっている日本人に対する偏見の解消に貢献する一方で、日本人に対する先入観を再生産する可能性がうかがえた。
오정배,김병희,백인수 한국풍력에너지학회 2019 풍력에너지저널 Vol.10 No.2
In this article, an investigation of small wind power in Korea is performed and suggestions for growth are presented. The first small-capacity wind turbine in Korea was installed in 1975, but so far only 13 wind turbines have received KS certification. In terms of the number of wind turbine manufacturers, only seven manufacturers have received KS certification. The cumulative capacity of small-capacity wind turbines in Korea by 2017 is known to be approximately 1.2 MW. In order to better understand the current situation of the domestic small wind market and manufacturers, surveys of small wind power companies participating in the research project “development of optimization engineering technology for small wind turbines” in Korea were conducted. Based on the survey, the competitiveness, economic feasibility, and difficulties of Korean small wind power companies were investigated and analyzed. The results of analysis are presented in the text along with suggestions for development.