• 제목/요약/키워드: general atmosphere

검색결과 381건 처리시간 0.025초

기후변화예측을 위한 해양대순환모형의 개발 (Development of Oceanic General Circulation Model for Climate Change Prediction)

  • 안중배;이효신
    • 한국해양학회지:바다
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    • 제3권1호
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    • pp.16-24
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    • 1998
  • 본 연구에서는 해양-대기 접합기후계의 연구를 위해 대기대순환모형에 대응하는 해양대순환모형을 개발하였고 이 해양대순환모형을 이용하여 주어진 대기경계조건에 대한 해양의 반응을 연구하였다. 기후학적 월평균값을 이용하여 모형을 100년동안 적분하였을 때(EXP 1), 해수온과 해류 등 모사된 대규모 해양상태는 관측과 유사하게 나타났다. 그러나 북적도반류와 같은 좁은 구역의 해류는 모형이 성긴 격자를 사용함으로 불가피하게 흐트러졌다. 남극주변의 남빙양상의 해빙의 계절변화 또한 잘 모사되었다. NCEP/NCAR Reanalysis Project로부터 얻어진 10년 월평균자료(1982-1991)를 경계조건으로 한 EXP 2에서 모형은 1982-1983과 1986-1987의 엘니뇨를 포함하는 그 기간 동안의 주요한 해양변화를 적절히 모사해 내었다. ENSO기간 동안 모형은 편서풍 아노말리의 동진에 따른 서향류 아노말리에 반응하여 동쪽으로 팽창하는 더운물과 적도를 따른 음의 연직속도 아노말리를 보여주고 있다. 엘니뇨와 상관한 아노말리 분포와 그 시간전개는 관측과 일치하고 있다. 일련의 실험들은 본 모형이 해양의 평균상태 및 아노말리를 재생산하는 능력을 가지고 있고, 해양-대기 결합계의 연구를 위해 효과적으로 사용될 수 있음을 보여준다.

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다중 선형 회귀를 이용한 PNU/CME CGCM의 동아시아 여름철 강수예측 보정 연구 (A Correction of East Asian Summer Precipitation Simulated by PNU/CME CGCM Using Multiple Linear Regression)

  • 황윤정;안중배
    • 한국지구과학회지
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    • 제28권2호
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    • pp.214-226
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    • 2007
  • 강수는 다양한 대기 변수들의 영향으로 나타나기 때문에 비선형성이 매우 강하다. 따라서 역학 모형을 통해 예측된 강수의 보정은 비선형 모형인 인공 신경망 등을 통해 가능할 것이지만, 인공 신경망의 경우 초기 가중치 선택, 지역 최소화 문제, 뉴런의 수 결정 등의 문제로 인한 한계가 있다. 그러므로 본 연구에서는 가장 보편적으로 사용되는 다중 선형 회귀 모형을 이용하여 CGCM에 의해 모사된 강수를 보정하였으며, 예측성을 살펴보았다. 이를 위하여 우선 PNU/CME 접합 대순환 모형(Coupled General Circulation model, CGCM)(박혜선과 안중배, 2004)을 이용하여 1979년부터 2005년까지 매해 4월부터 8월까지 5개월간 앙상블 적분을 하였다. 적분 결과 중 한반도를 포함한 동북아시아 지역$(110^{\circ}E-145^{\circ}E,\;25^{\circ}N-55^{\circ}N)$의 여름철인 6월(리드 2), 7월(리드 3), 8월(리드 4) 및 여름철 평균인 JJA(from June to August) 기간의 PNU/CME CGCM에 의해 모사된 강수를 보정하기 위해 다중 선형 회귀(Multiple Linear Regression, MLR)를 이용하였다. PNU/CME 접합 대순환 모형의 결과 중 강수, 500 hPa 연직 속도, 200 hPa 발산장, 지상 기온 등의 예측 인자와 관측 강수와의 선형적인 관계를 이용하여 MLR 모형을 구축하였다. 그리고 교차 검증(cross- validation)을 수행하여 PNU/CME 접합 대순환 모형의 결과와 교차 검증 결과를 비교하였다. 상관계수, 적중률 (hit rate), 오보율(false alarm rate) 그리고 Heidke 기술 점수(Heidke skill score) 등을 살펴본 바, 보정하지 않은 모형의 결과에 비해 MLR 모형을 이용하여 보정한 결과의 강수에 대한 예측성이 뛰어난 것을 알 수 있었다.

종합병원 간호사들의 직무스트레스와 건강수준(SF-36)과의 관련성 (Relationship between Job Stress and Health Status(SF-36) Among General Hospital Nurses)

  • 임연희;조영채
    • 한국산학기술학회논문지
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    • 제16권7호
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    • pp.4745-4757
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    • 2015
  • 본 연구는 종합병원에 근무하는 간호사를 대상으로 이들의 건강수준(SF-36)을 파악하고, 건강수준과 인구사회학적 특성, 직업관련 특성 및 직무스트레스 내용 등의 제 요인들과의 관련성을 파악하고자 실시하였다. 조사대상은 250병상 이상의 6개 종합병원에 근무하고 있는 간호사 572명으로 하였으며, 자료 수집은 2014년 5월 1일부터 5월 31일까지의 기간 동안에 구조화된 무기명 자기기입식 설문지를 이용한 설문조사에 의하였다. 연구결과, 조사대상 간호사들의 건강수준(SF-36)은 개인의 인구사회학적 특성, 건강관련행위 특성 및 직업관련 특성뿐만 아니라 직무스트레스 내용과도 유의한 관련성이 있음을 시사하고 있다. 특히 건강수준(SF-36)은 직무스트레스 내용에 있어서 업무 요구도가 낮고, 업무의 자율성, 상사 및 동료의 지지도가 높을 때 높아지는 것을 알 수 있다. 따라서 간호사의 직무스트레스를 통제할 수 있는 조직 내 시스템 개발과 분위기 조성이 우선되어져야 할 것이며, 또한, 간호사들의 건강수준(SF-36)을 증대시키기 위한 프로그램 개발이 필요하다고 사료된다.

대구지역 중학생들의 학교 급식 만족도 조사 (Satisfaction with School Food Service of Middle School Students in Daegu)

  • 장미애;최미자
    • 동아시아식생활학회지
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    • 제15권2호
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    • pp.226-234
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    • 2005
  • A study was conducted to improve satisfaction to school food service and to furnish source materials for nutrient education by researching degree of satisfaction of middle school students to school food service. Following results are from the study that targeted 215 male students and 173 female students in 5 middle schools in Daegu. Satisfaction rates regarding taste of foods, smell, proper temperature, use of seasonal food, cafeteria atmosphere, numbers of side dishes, and kindness of the cook in a cafeteria were higher than dissatisfaction. And dissatisfaction rates were higher in quantity and quality of foods, sanitation, purity of table wares, opening to nutrient education and related informations for students, opinion reflection of students, food serving time and gratification to food serving than the opposite. But the degree of general satisfaction on school food service were higher than the degree of general dissatisfaction. Sanitation was the first thing to be changed in school food service, then quantity of food and taste for the last. And there were notable differences between male students and female students in sanitation satisfaction. The variables that influence on satisfaction to school food service were sanitary administration, numbers of side dishes, quantity of foods, nutrient, smell and taste when ranked. And the main three things that have similar rate in quantity with satisfaction rate are taste, smell and nutrient of school food service. Through these followed results, degree of general satisfactions to school food service were higher than degree of general dissatisfactions. But sanitation, quantity and quality of foods, taste, and food serving size were not satisfactory for students in rate. Therefore it has to be improved to enhance satisfactions to middle school food service.

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일반초등교사의 ADHD아동교육에 대한 인식 (Knowledge of Elementary School Teachers Regarding in ADHD Children Education)

  • 강민채
    • 융합정보논문지
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    • 제9권7호
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    • pp.114-121
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    • 2019
  • 본 연구에서는 일반초등학교 교사 297명을 대상으로 ADHD아동교육에 대한 인식에 대해 알아보았다. ADHD아동 교육에 대한 인식은 ADHD아동의 통합교육에 대한 태도, 부담감, 효능감, 촉진여건 네 가지 영역으로 구성된 설문지를 통해 이루어졌다. 수집된 설문지는 SPSS(WIN 22.0)의 기술통계를 사용하여 빈도와 백분율을 산출하였다. 연구결과 첫째, 일반초등교사들은 ADHD아동의 통합교육을 위해 노력 하는 것으로 나타났다. 둘째, 일반초등교사들의 ADHD아동교육에 대한 부담감에서는 ADHD아동이 일반아동의 학습방해, 긍정적 학습분위기 방해, 일반교실의 질서 유지 방해, 교사의 수업 진행을 방해한다고 나타났다. 셋째, ADHD아동교육에 대한 일반초등교사들의 효능감에서는 ADHD증상에 대한 지식 습득, ADHD아동의 진단과 평가, ADHD아동 교육을 위한 교수 능력, ADHD아동의 행동을 다루는 능력은 없는 것으로 나타났다. 넷째, ADHD아동교육에 대한 학교차원의 촉진여건에서는 ADHD 아동을 위한 전문인력 지원, ADHD 아동 지원을 위한 외부 기관과의 연계는 이루어지지 않는 것으로 나타났다.

영상매체에 나타난 복식의 의미작용에 관한 기호학적 접근 -TV드라마 『애인』을 중심으로- (Semiotic Approach on the Signification of Clothing through Visual Mass Media -in a TV Serial Drama′Aein(Sweetheart)′-)

  • 박희순;이수인
    • 복식문화연구
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    • 제6권4호
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    • pp.62-73
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    • 1998
  • This study focuses on semiotic significance of clothing, showed in visual mass media. This study will look into what general public understand from clothing and what influence clothing on visual mass media exert on fashion. This study employs an example, "Aein(sweetheart)", which was televised from 09/02/1996 till 10/23/1996. Some specialists(master′s degree or doctoral degree holders, or professors) of Clothing and Textile picked and analyzed scenes with specific clothing. The theoretical grounds of the analysis are 1) in what procession the significance operate from the view of mythological symbols by Bart, 2) what influences clothing on TV dramas exert on fashion. The outcomes of the study are followings: First, clothing′s signifying proces hs two dimensions; linguistic dimension and mythological dimension. Linguistic dimension which is regarded as general and unvariable and is related to the reproductive signifying operation, contributes to the creation of the characters including the characters′ social activities, professions, social or economic position. Mythological dimension which is related to the cultural and implicative signifying operation, played an important role in the development of the drama. Thus, it operates to create and deliver images including that atmosphere of he drama and the development of the story. Second, the TV media which is characterized with the form of centralized transmission and individual reception and the ability tro readily lead the fashion, has huge influence upon the fashion by properly creating mythological or linguistic dimension of the clothing in the drama, arousing the public′s sympathy, and stimulating the public′ immitation or conformity mentality.

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국민학교(國民學校)의 다목적(多目的) 스페이스에 대한 건축계획적(建築計劃的) 연구(硏究) - 일본(日本)의 다목적(多目的) 스페이스 설치(設置).이용(利用)의 현황(現況) 분석(分析) - (A Study on the Open Space in the Elementary School from the Standpoint of Architectural Planning - An Analysis of the Situations of Establishment and Using Method of the Open Space in Japan -)

  • 류호섭
    • 교육시설
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    • 제2권2호
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    • pp.27-39
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    • 1995
  • It is a well-known fact that most of the Korean school buildings has been adjusted by the standard plan according to the united and unified teaching method ever since the modern education started. However, seeing the recent growth of care for the open education, the effort to improve the teaching method in school fileds, the practice of the 6th education plan and the education reformation, it can be said that it is high time to change. As the number of schools which practice the open education has been increasing since in 1985 in this atmosphere, there have also appeared elementary schools with the open school building. But the general understanding of the school building and the open space is not enough. Therefore, this study aims to analyze the general spacial conditions, such as the fresh and diverse types of learning method and their development and the concept of the open space along with its types, application, size, and constition by studying, from the standpoint of the building plan, the elimentary schools of a new type in Japan which adopted the open space 20years earlier than in Korean. This study can offer helpful suggestions as to the Korean school building because our situation is very similar to the early stage where the open space is adopted to the school building.

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변동경향을 보존하는 편의보정기법을 이용한 우리나라의 평균 및 극한기온 모의결과 보정 (Correction of Mean and Extreme Temperature Simulation over South Korea Using a Trend-preserving Bias Correction Method)

  • 정현채;서명석
    • 대기
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    • 제25권2호
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    • pp.205-219
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    • 2015
  • In this study, the simulation results of temperature by regional climate model (Reg- CM4) over South Korea were corrected by Hempel et al. (2013)'s method (Hempel method), and evaluated with the observation data of 50 stations from Korea Meteorological Administration. Among the 30 years (1981~2010) of simulation data, 20 years (1981~2000) of simulation data were used as a training data, and the remnant 10 years (2001~2010) data were used for the evaluation of correction. In general, the Hempel method and parametric quantile mapping show a reasonable correction both in mean and extreme climate of temperature. As the results, the systematic underestimation of mean temperature was greatly reduced after bias correction by Hempel method. And the overestimation of extreme climate, such as the number of TN5% and freezing day, was significantly recovered. In addition to that, the Hempel method better preserved the temporal trend of simulated temperature than other bias correction methods, such as the quantile mapping. However, the overcorrection of the extreme climate related to the upper quantile, such as TX5% and hot days, resulted in the exaggeration of the simulation errors. In general, the Hempel method can reduce the systematic biases embedded in the simulation results preserving the temporal trend but it tends to overcorrect the non-linear biases, in particular, extreme climate related to the upper percentile.

공동체적 가정교육의 실행과 가정건전도 (The Relationship between Community Values Taught at Home and the Soundness of Family Life)

  • 이영호;지영숙
    • 가정과삶의질연구
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    • 제20권5호
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    • pp.1-11
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    • 2002
  • This study was conducted to investigate how the community values taught at home by parents affect the soundness of family life. The 914 participants in the sample were parents residing in Seoul. Major findings are described in the following: 1) The general level education of community-oriented values at home, which was measured by the level of parents' practice of community-oriented behavior, was very insufficient. 2) The soundness of family life was measured in six sub-areas. The six areas showed varying degrees of soundness, but the overall level of soundness was satisfactory. The conjugal relationship had the highest degree of soundness, whereas the general everyday atmosphere at home marked the lowest level. 3) The only significant independent variable that affected the practice of community values was the participants's subjective perception of their social class standing. 4) The level of practice of community values and social class variables were found to influence the soundness of family life. The level of practice of community values was an especially strong predictor in all areas of family soundness. In conclusion, the education of community values at home, measured by the parental practice of community-oriented behavior, positively influences the soundness of the family.

강원도 지역 학생들의 학교 급식에 대한 만족도 조사 (Survey of Student Satisfaction with School Food-Service Programs in Gangwon Province)

  • 이화숙;장명희
    • 한국식품영양학회지
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    • 제18권3호
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    • pp.175-191
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    • 2005
  • This study carried out a survey of students in Gangwon province's general opinion and satisfaction with the school food-service programs implemented in Gangwon province. The method involved a survey of 1,500 elementary, middle, and high school students from 30 schools. The main results of this study can be summarized as follows: With regards to their general opinion of the school food-service programs, $70\%$ of the students answered that the size of the portions was appropriate. Moreover, the survey students answered that they were satisfied with the current method in which the food services. The elementary school students were found to be the best at maintaining public order when the food services were being conducted. The largest complaint which the students had towards these food service programs was the taste of the food itself. With regard to the students' degree of satisfaction with the school food service programs, the highest level of satisfaction with the atmosphere during meal times(3.88), followed by the degree of satisfaction with the food(3.27), and the school cafeteria environment(3.20), and the sanitary conditions of the food service facilities(3.14). The overall opinion and degree of satisfaction with school food service programs demonstrated significant differences, depending on the school level and type of food service.