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      • KCI등재

        “YOUR MAMA” Routine among Preadolescent Korean Boys in America

        Yun Seong-won 한국사회언어학회 2012 사회언어학 Vol.20 No.2

        Yun Seong-won. 2012. "YOUR MAMA" Routine among Preadolescent Korean Boys in America. The Sociolinguistic Journal of Korea, 20(2). pp. 313-341. This study explores the use of the “your mama” routine by four preadolescent Korean boys in order to understand how this discursive practice contributes to their construction of social identities. The boys’ interactions in a Korean community in America had been videotaped for two years and transcribed to analyze what it means for them to code-switch between English and Korean during the play. The findings indicate that code-switching signals the processes of meaning construction and indexes multiple socio-cultural meanings, functions, stances, and identities. First, by breaking the primary code preference, Korean and switching to English, the Korean boys are appropriating and subverting a tough African American voice and they extend their Korean masculinity; however, they maintain a strong Korean identity through their preferred code choice, Korean, which is shared and powerful in the Korean community. Second, in the micro-level, the code-switching between English and Korean creates multilayered indexical social meanings: a) footing to create different stances, b) contextualization cues to construct different contexts by breaking a frame, and c) metapragmatics (discussion about language in use). To conclude, the social meanings of code-switching can be (re)constructed depending on the relationships between local contexts and multiple intentional meanings of different people.

      • IEEE 802.22 WRAN 시스템을 위한 OFDM 프리앰블 설계 및 동기 알고리즘

        원재연,심성보,김윤희 경희-다반 ASIC 설계교육센터 2006 경희-다반 ASIC센터 논문집 Vol.7 No.-

        IEEE 802.22에서는 사용하지 않는 TV 대역을 찾아 고정 사용자에게 고속 패킷 전송을 제공하는 WRAN 시스템을 논의하고 있다. 본 논문에서는 WRAN 시스템을 위해 단일 프리앰블을 이용한 시간 및 주파수 동기 알고리즘을 제안하고 WRAN에서 고려하는 무선 채널 모형에서 성능을 살펴본다. 제안한 알고리즘은 기존의 시간 동기 메트릭을 간단히 수정하여 시간 동기를 좀 더 안정적으로 찾을 수 있도록 함으로써, 시간동기후에 수행되는 주파수 옵셋 추정기의 성능을 향상시킨다.

      • TGA 방법을 이용한 플라스틱과 하수·분뇨슬러지의 열분해 반응속도 연구

        윤효숙,최성필,김성탁,원양수,신부영 嶺南大學校 環境問題硏究所 1997 環境硏究 Vol.16 No.2

        요약문 도시 고형폐기물의 열분해 특성에 대한 기초 자료를 제시하고자 열중량분석기를 이용하여 가열속도를 실험변수로 하여 하수 및 분뇨슬러지와 5대 범용 플라스틱인 LDPE, HDPE, PP, PS 와 PVC의 열분해 반응속도인자 및 분해특성을 파악하였다. 활성화에너지는 가열속도에 상관없이 일정한 값을 나타내었으며 분해속도가 최고일때의 온도는 가열속도가 증가함에 따라 증가하였다. LDPE, HDPE, PP와 PS는 1단계 분해반응으로 350∼520 ℃에서 대부분이 완전분해되었으며, PVC는 2단계 분해반응으로 250∼550 ℃에서 분해가 진행되었다. 슬러지는 여러 단계의 분해반응으로 특정한 분해구간이 없이 전구간에 걸쳐서 분해가 진행되었다. PVC를 제외한 플라스틱은 완전분해되었으며, PVC는 약 10%의 잔류량이 있었고, 슬러지의 잔류량은 D 하수, S 하수, T 분뇨 슬러지의 순으로 43, 70, 28.5%를 나타내었다.Abstract The thermal decomposition of sewage/night soil sludge and LDPE, HDPE, PP, PS and PVC was studied by using a conventional dynamic thermogravimetric analyzer (TGA) in a flowing nitrogen environment at several heating rates between 5 ℃ and 40 ℃/min. The dynamic thermogravimetric analysis curve was analyzed to obtain the information on the kinetic parameters such as activation energy, reaction order, and Arrhenius preexponential factor. The activation energy keeps constant regardless of heating rates, and the temperature of he fastest decomposition increases with the heating rate. LDPE, HDPE, PP and PS were completely decomposed in the temperature range of 350∼520 ℃ including as the first step decomposition and PVC was decomposed in the temperature range of 250∼550 ℃ including the second step decomposition. Sludge was decomposed without specific temperature range as several decomposition step. Except of PVC, all plastics were decomposed completely. PVC keeps the remains of about 10%, and sludge keeps the remains of 43% for D sewage sludge, 70% for S sewage sludge, 28.5% for T night soil sludge.

      • 제2형 당뇨병 환자에서 체내 총항산화능 측정의 의의

        윤여일,윤석기,김선규,김용현,남일송,차건영,황의원,김영선 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2

        Background: The diabetic patients are at significantly increased risk of developing vascular disease. It's etiology may involve oxidative damage by free radiacals and protection againse such damage can be offered by antioxidants. We investigated that oxidative stress as assessed by measurement of total antioxidant status may play a role in development of diabetes mellitus. Method: We measured total antioxiant status using merchandised kit, glycated hemeglobin(HbA1c) in 46 type 2 diabetes mellitus patients and 50 healthy matched control subjects. Result: The total antioxidant status(TAS) was 2.10(±0.04) mmol/L in uncontrolled type 2 DM patients, 2.60(±0.03) in controlled type 2 DM patients and 2.70(±0.16) in healthy control subjects. TAS was significantly lower(P<0.05) in uncontrolled type 2 DM patients, but no significant association between in controlled type 2 DM patients and healthy control subjects. The TAS was 2.00(±0.17) mmol/L in complicated type 2 DM patients and 2.10(±0.29) uncomplicated type 2 DM patients. There was no significant associations between complicated type 2 DM patients and uncomplicated type 2 DM patients. Conclusion: Poor glycemic control is associated with reduced TAS in type 2 DM patients. TAS was thought indirect index that predict glycemic control of type 2 DM patients.

      • 건설 예정의 Coil Center 운영에 대한 Simulation 분석

        성덕현,윤원영,옥영석 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.52 No.-

        본 논문은 건설예정인 coil center의 처리능력과 물류를 평가하기위한 시뮬레이션모델을 개발하는 연구이다. 경험적인 추정에 의한 야드에서의 수량, 저장시간의 분포를 구하고 3가지 운영대안이 제안되어 SLAMII를 이용한 시뮬레이션을 실시하며 최종적인 대안은 설비(Slitter)의 추가가 추천되어 이 것에 대한 시뮬레이션 결과를 분석한다. 그 결과 Slitter와 저장야드의 병목현상이 나타나므로 향후 이부분에 대한 기술적인 고려가 필요한 것으로 나타났다. In this paper, the simulation model is developed to evaluate the capacity and the material flow of the planned coil center. By the empirical estimation, the distributions of the quantity and the elapse time in the yard are obtained, and three alternatives are proposed. Based on the primitive simulation using SLAMII, the final alternative is prepared which includes one more facility (slitter), and the simulation is also performed. The result shows that the slitter and the storage yard are the bottleneck points throughout the slitting process. And the problem should be solved technically in managerial decision making related to construct the new coil center.

      • KCI등재후보

        청각장애학교에서의 진로교육 현황 및 개선방안

        원성옥,강윤주 대구대학교 특수교육재활과학연구소 2005 특수교육재활과학연구 Vol.44 No.4

        The purpose of this study is to examine and analysis the realities of career education and to propose the its improvements in school for the deaf. We gathered opinions of 135 teachers in school for the deaf from questionnaire.The results are shown as following. First, Teachers have a correct understanding about the concept, the instruction steps, and instruction contents of career education. Second,Teachers know the necessity and importance of career education in classroom,but they didn't give the career guidance and information in classroom. Third, Teachers didn't give the career guidance and information in extra activity and counseling. Fourth,The materials and programs are not enough to provide the career education. Finally, We suggest improvements of career education based on the realities and teachers' recommendation 본 연구는 청각장애학교의 진로교육 현황을 분석하기 위해 전국에 소재하고 있는 11개 청각장애학교에 근무하고 있는 교사 135명을 대상으로 진로교육에 대한 인식과 진로교육 현황을 교과지도, 특별활동 및 진로행사, 상담활동, 진로정보자료 및 프로그램의 활용으로 나누어 조사하였다. 조사결과, 진로교육은 초등부부터 시작되어야 하며 그 필요성도 느끼고 있었을 뿐 아니라 진로교육의 의미나 학교급별 진로교육의 단계와 그에 적절한 교육 내용에 대해서도 바르게 인식하고 있었다. 그러나 교과활동을 통한 진로교육의 제공, 특별활동과 상담활동을 통한 진로교육 현황은 필요성 인식에 미치지 못하고 있는 실정이다. 이러한 현황과 교사들이 제안하는 개선방안을 바탕으로 진로교육 개선방안을 제시하였다.

      • 퇴행성 슬관절염 환자 평가 설문도구의 내적 신뢰도, 상관성에 관한 연구

        류성룡,안경애,서병관,강중원,이상훈,이재동,최도영,김건식,이두익,이윤호 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-

        Objective : The aim of this study is to evaluate internal reliability and correlation among assessment instruments of knee OA. Methods : Data were obtained from 85 patients with knee OA. They were asked to answer VAS pain scale, two disease-specific questionnaires (WOMAC and LFI) and one instrument about health-related quality(KHAQ). Reliability was assessed using cronbach's alpha. Correlation was assessed by examining the pearson's correlation coefficients. Results : Cronbach's alpha of all Index except WOMAC stiffness subscale(.6679) exceeded the value of 0.70. A good correlation was obtained between WOMAC Subscale (especially Pain Subscale) and LFI (.726<cronbach's alpha<.791). Also, Correlation between KHAQ and two disease-specific questionnaires (WOMAC and LFI) was good(.612<cronbach's alpha<.662). Conclusions : All used instruments have good internal reliability. also, There are good correlation among them. The treatment of knee OA must be focused on health related quality. For this, we should use proper assessment instruments.

      • KCI등재

        산업장 근로자의 스트레스에 대한 한의계 연구경향

        차윤엽 ( Yun Yeop Cha ),고연석 ( Youn Seok Ko ),이정한 ( Jung Han Lee ),정원석 ( Won Suk Chung ),신병철 ( Byung Cheul Shin ),전찬용 ( Chan Yong Jeon ),고호연 ( Ho Yeon Go ),선승호 ( Seong Ho Sun ),장보형 ( Bo Hyoung Jang ),송윤경 한방재활의학과학회 2013 한방재활의학과학회지 Vol.23 No.2

        Objectives : The purpose of this study is to explore the trends of Korean medical study on stress in the industrial worker. Methods : We received numbers of the studies about stress in the industrial worker from 6 Korean web databases, using key words such as ‘Industry AND Stress’, ‘Oriental medicine AND Stress’, ‘Worker AND Stress’, ‘Workplace AND Stress’. We received 12 research papers and they were analyzed and the journals, the authors, the contents of 3 classification of those research papers. Results : Among them, we had 6 reviews of Dept. of preventive medicine and Dept. of third medicine, college of Korean Medicine, Won-kwang University, and the rest of them were 6 reviews. We had 4 reviews of Korean Journal of Oriental Preventive Medical Society, 2 reviews of the Journal of Traditional Korean Medicine, 2 reviews of Journal of Oriental Neuropsychiatry and so on. According to the contents of reviews, we had 7 reviews of correlation of industrial worker and stress, 4 reviews of cause on the industrial worker’s stress and 1 case report. Conclusions : We reviewed the trends of Korean medical study on stress in the industrial worker. The stress in the industrial workers were related with the type of occupation, social psychology, drinking, smoking, the satisfaction of job, the harmony of organization.And we knew that the musculoskeletal pain was related to the industrial worker’s stress. In the future, abundant case studies, follow-up trials and RCTs should be done about the industrial worker’s stress.

      • KCI등재

        고등학교 지구과학 실험·실습 요목 비교 분석

        정원우,이윤종,기우항,김영호,양승영,강용희,안병호,임성규,윤일희,김중욱,윤성효,강동진 경북대학교 과학교육연구소 1997 科學敎育硏究誌 Vol.21 No.-

        The purpose of this study is to investigate the status of the experimental and practical education in high school earth. The present status and reasonable management of the experimental and practical education in high school earth science have been grasped from the questionaires. To do this, eighty eight earth science teachers in Korea are administered questionaires. The frequency of the experimental and practical items in the seven kind of earth science text books were investigated. The problems and the reasonable management for experimental and practical education were proposed in this paper.

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