• 보건교육건강증진학회지
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• 제20권2호
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• pp.113-125
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• 2003

Background： Recently, adolescent obesity was increased and tended to become obese adults, facing increased risk for diabetes, cardiovascular disease. Even before reaching adulthood, adolescent obesity already was experiencing hypertension, dyslipidemia, and diabetes mellitus. The purpose of this study was to find prevalence of obesity of high school students in Jeju island and association between obesity and cardiovascular risk factors and association between childhood obesity and adolescent obesity. Method： The study subjects were 6,064 students of twenty-two high school in Jeju island and health survey data was gathered from high school health examination data and hospital health examination data from Aug. 1999 to Dec. 1999. Adolescent obesity was evaluated by ideal body weight method in 1998 and body mass index. Cardiovascular risk factors were checked total cholesterol, systolic and diastolic blood pressure, fasting blood sugar. In 1,534 students, obesity at primary school is checked by primary and middle school health record. Results： Prevalence of obesity in Jeju island high school students is 12.6% in male students, 13.3% in female students by ideal body weight method and 8.7% in male students, 8.5% in female students by body mass index. Prevalence of obesity of male students in city area and district area of Jeju island were each 12.9%, 10.3% and that of male students in city area was significantly higher. Prevalence of obesity of female students in city area and district area of Jeju island were each 12.9%, 14.2% and not significantly different. Prevalence of obesity of male students in general and commercial school group were each 13.9%, 10.1% and that of general school group was significantly higher. In female students, Prevalence of obesity general and commercial school group was not significantly different. Total cholesterol, systolic and diastolic blood pressure were significantly associated with degree of obesity in male and female students(p＜0.05) and fasting blood sugar was only significantly associated with degree of obesity in male students(p＜0.05). In 1,514 students checked by health record, Odds ratio of obesity at primary and middle school that at high school were 12.96∼22.77 and was significantly associated. Conclusion： Prevalence of obesity of high school students in Jeju island is very high and adolescent obesity was significantly associated with cardiovascular risk factors. Mostly childhood obesity tended to become adolescent obesity and program of control of obesity at childhood and adolescence is required.

• 농촌계획
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• 제25권3호
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• pp.1-9
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• 2019

Population is important as a fundamental element of local industry and economy, and census data is essential to regional planning and policy making. Although there have been many researches on population and regional planning, there are few studies on population considering spatial unit. In this study, the population of three spatial scales were compared in order to establish the spatial unit suitable for the rural planning. The study area is Gangwon, Chungcheong-Nam, Chungcheong-Buk, Jeolla-Nam, Jeolla-Buk, Gyeonsang-Nam, Gyeonsang-Buk and Jeju province. Population were compared using statistical data analysis, GIS visualization, and spatial statistics. The mean, maximum, minimum, and variance of population were calculated and the coefficient of variation according to spatial unit was compared. The mean, maximum, minimum, and variance of population were calculated and the coefficient of variation according to spatial unit was compared. As the results, the census output area unit is difficult to interpret spatial analysis results. Administrative district unit has the limit that includes areas where the population does not live. The grid unit is well suited to the geographical characteristics but has many disadvantages of the grid with small population. Therefore, It is necessary to complement the limits of the Eup and Myeon-dong administrative district through the grid unit data.

• 자원환경지질
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• 제48권6호
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• pp.509-523
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• 2015

제주도 수문지질 종합 해석시스템 구축 연구의 일환으로 수행된 제주도 공공 관정 지질주상도 데이터베이스 구축결과를 소개한다. 1970년대부터 개발된 제주도 전역의1,200여 개 공공 관정의 지질주상도를 수문지질 조사소(炤)${\Pi}$맙$^{\circ}$ 범용할 수 있도록 6개의 속성 테이블로 구분하여 세부 정보를 데이터베이스화하여 분석을 수행한 결과, 기존 공공 관정지질주상도 이용에 다음과 같은 문제점이 있는 것으로 나타났다. 즉, (1) 지질주상도 암석명의 통일성 결여, (2) 화산쇄설층 및 사력층 개념 정립 필요, (3) 대수층 정보 불포함, (4) 상당수 관정에 대한 스크린설치 구간 심도 미기재, (5) 지질주상도 작성자별 기재 사항 및 내용상의 상이성 등이다. 연구팀은 상기와 같은 문제점들을 개선하기 위해 지질주상도상의 화산암 및 퇴적암 명칭을 재정립함과 아울러, 상용화된 데이터베이스 형식의 지질주상도 프로그램을 이용해 표준화된 입력과 출력형식 생성이 가능한 제주도 공공 관정 지질주상도 데이터베이스를 구축하였다. 새롭게 설계된 입력 테이블을 이용한 지질주상도 프로그램은 데이터베이스 입력 형식 기반을 가지고 있어, 사용자가 지정한 표준화된 입력 구조를 통해 지질, 관정 시추 및 시험 데이터들을 저장하여 데이터베이스화 함과 동시에 지질주상도와 단면도 출력에도 이용할 수 있다. 또한 지하수 관측 및 양수시험 결과 등의 새로운 자료도 데이터베이스 구조의 변경없이 쉽게 추가될 수 있다. 본 연구를 통해 구축된 지질주상도 데이터베이스는 향후 개발되는 관정들의 표준 데이터베이스 기준으로 활용됨으로써, 일관성 있는 지질주상도 작성과 수문지질 종합연구에 크게 도움이 될 전망이다. 또한, 현재 추진 중인 제주도 수문지질 해석시스템 개발과 기후변화에 대응한 통합수자원관리계획 기반기술을 뒷받침해 주는 초석이 될 것으로 기대된다.

• 한국환경과학회지
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• 제18권10호
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• pp.1143-1153
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• 2009

The purpose of this study is to propose an appropriate method for marking out a boundary line of area damaged by aircraft noise. In an actual situation, there are many gaps between the boundary line of aircraft noise contour and the boundary line of an occupant of a house. Three cases faced in practice are considered in this study. Case I is considered the land number together with sub-number. The Tong and Ban (the residential district number in Korea) are considered in Case II. In Case III, the configuration of ground is examined. The authors expect that the authority of aviation affairs should choose one of these cases and put in force in the near future.

• 한국농공학회논문집
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• 제65권3호
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• pp.69-82
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• 2023

Representative meteorological data of the rural water district, which is the spatial unit of the study, was produced using the grid-based national standard RCP scenario rainfall data provided by the Korea Meteorological Administration. The retrospective reproducibility of the climate model scenario data was analyzed, and the change in climate characteristics in the water district unit for the future period was presented. Finally the data characteristics and differences of each meteorological element according to various spatial resolution conversion and post-processing methods were examined. As a main result, overall, the distribution of average precipitation and R95p of the grid data, has reasonable reproducibility compared to the ASOS observation, but the maximum daily rainfall tends to be distributed low nationwide. The number of rainfall days tends to be higher than the station-based observation, and this is because the grid data is generally calculated using the area average concept of representative rainfall data for each grid. In addition, in the case of coastal regions, there is a problem that administrative districts of islands and rural water districts do not match. and In the case of water districts that include mountainous areas, such as Jeju, there was a large difference in the results depending on whether or not high rainfall in the mountainous areas was reflected. The results of this study are expected to be used as foundation for selecting data processing methods when constructing future meteorological data for rural water districts for future agricutural water management plans and climate change vulnerability assessments.

• 생명과학회지
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• 제19권7호
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• pp.943-948
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• 2009

Physical and chemical analyses of water discharged from 4 crowded farms (Sungsan, Pyosun, Wimi and Daejung) in Jeju island were performed from July, 2006 to Dec, 2006, and the result of the analyses showed that hydrogen ion concentrations (pH) for water discharged from Sungsan farm was 7.74, Pyosun was 7.68, Wimi was 7.68 and Daejung was 7.7. Salinity levels for Sungsan, Pyosun and Wimi had an average of 31$\sim$33 $^\circ$/$_\circ$$_\circ$ indicating characteristics of far distance areas, whereas that of Daejung was 28.81 %, which was far lower compared to regular sea water salinity. As the result of measuring dissolved oxygen (DO) for each area, each area showed first graded DO for each discharged water based on water quality level for each sea district. The result of measuring the temperature for discharged water showed that water temperatures for summer were 23$\sim$25$^\circ$C, and those for winter were 16$\sim$ 18$^\circ$C. Nitrogen concentrations for discharged water exceeded each sea area's water quality level in all farms. In the case of phosphate, its average value was 0.48 mg/l for Sungsan, 0.55 mg/I for Pyosun, 0.66 mg/I for Wimi, and 0.44 mg/l for Daejung, and chemical oxygen demand (COD) was shown to be 1.5 mg/l 1.8 mg/I, 1.6 mg/I and 2.3 mg/I for Sungsan, Pyosun, Wimi and Daejung respectively. For suspended solids (SS), the average concentration was 19.3 mg/I, 21.2 mg/I, 21.3 mg/I and 18.5 mg/I for Sungsan, Pyosun, Wimi and Daejung respectively. The results of physical and chemical analyses for discharged water in farms based on time showed that almost all items were shown to increase in the forenoon and decrease, overall, in the afternoon.

• 설비공학논문집
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• 제27권11호
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• pp.574-580
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• 2015

Climatic zone in building code is an administrative district classification reflecting regional climatic characteristics. Use of Degree-Days is a fundamental method that can be used in various building design codes, analysis of building energy performance, and establishment of minimum thermal transmittance of building envelopes. Many foreign countries, such as the USA, the EU, Australia, Italy, India, China, etc., have already adapted climatic zone classification with degree-days, precipitation or amount of water vapor based on the characteristics of their own country's climate. In Korea, however, the minimum requirements for regional thermal transmittance are classified separately for the Jungbu area, Nambu area and Jeju Island with no definite criterion. In this study, degree-days of 255 Korean cities were used for climatic zone classification. Outdoor dry-bulb temperature data from the Korea Meteorological Administration for 1981~2010 was used to calculate degree-days. ArcGIS and the calculated degree-days were utilized to analyze and visualize climatic zone classification. As a result, depending on the distribution and distinctive differences in degree-days, four climatic zones were derived : 1) Central area, 2) Mountain area of Gyeonggi and Gangwon provinces, 3) Southern area, and 4) Jeju Island. The climatic zones were suggested per administrative district for easy public understanding and utilization.

• 자원환경지질
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• 제42권4호
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• pp.343-356
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• 2009

제주도의 토지이용 변화에 대한 직접유출량의 변화를 알아보기 위하여 SCS 방법에 의한 직접유출량을 산정하였다. 토지이용자료는 국토해양부에서 운영하는 국가수자원관리종합정보시스템(WAMIS)에서 제공하는 1975년부터 2000년까지 5년 주기의 위성 영상으로부터 추출 분류된 자료들을 이용하였으며, 토양도, 투수성 지질구조 분포를 토대로 수문학적 토양군을 분류하였다. 제주도의 1975년부터 2000년까지 토지이용은 도시화 및 지역 개발 등에 의한 산림지역의 감소와 시가화 지역과 농지 증가가 뚜렷하게 나타나고 있다. 그에 따라 제주도의 평균 유출곡선지수는 1975년에 65.3이었던 것이 2000년에는 69.6으로 지속적으로 증가되었다. 유출곡선지수의 증가로 인하여, 년간 직접유출량은 1995년도의 강우량을 적용했을 때 299.0 mm에서 351.6 mm로, 직접유출률은 15.1%에서 17.7%로 증가된 것으로 산정되며, 2000년도의 강우량을 적용했을 때에는 직접유출량이 년간 136.9 mm에서 161.5 mm로, 직접유출률은 9.7%에서 11.5%로 증가된 것으로 평가되었다. 이러한 직접유출량의 변화는 지하수 함양량과 지하수 개발 가능량의 변화로 이어지기 때문에, 합리적인 물관리에 있어서 토지이용변화, 지역개발에 의한 물수지 변화 등을 면밀하게 검토할 필요가 있다.

• 자원환경지질
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• 제54권2호
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• pp.187-197
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• 2021

형제섬은 송악산에서 북동쪽으로 약 2 km 떨어진 해상에 위치한 침식 잔존 화산체로서, 하부로부터 화산쇄설층, 집괴암 및 분석층, 분화구 용암, 아아 용암류와 이를 피복하는 재동퇴적층과 해빈퇴적층 순으로 이루어져 있다. 형제섬 화산체는 초기 증기 마그마성에서 후기 마그마성 분출과 용암분류로 변화한 화산분화를 기록하고 있는 분출물로 이루어져 있으며, 노두로 남아있는 화산쇄설층은 응회구의 외륜 일부로 해석된다. 화산탄과 분화구 용암류는 현무암질 조면안산암의 조성(SiO2 51.3 wt%, Na2O+K2O 6.0 wt%)이며 감람석 현무암류에 해당한다. 단계별 가열에 따른 Ar-Ar 연대측정법에 의한 형제섬 용암류의 플래토 연대는 9.2±3.6 ka로서, 약 3천 7백 년 전의 분화 기록을 가지고 있는 인접한 송악산 화산체보다 앞서 형성되었음을 의미한다. 여전히, 약 천 년 전 화산분화의 역사 기록에 부합되는 화산체를 찾는 숙제가 남는다.

• 한국농공학회논문집
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• 제52권5호
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• pp.97-108
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• 2010

The objective of this study is to develop evaluation indices which can be applied to analyze rational rehabilitation-policy directions of redundant farmlands. To achieve this objective, the main tasks of this research are 1) categorizing the redundant farmlands rehabilitation types 2) developing the evaluation indices of redundant farmlands rehabilitation 3) determining the weights of each index. The redundant farmlands rehabilitation types were classified into agricultural rehabilitation type, non-agricultural rehabilitation type and hybrid type which are called by agricultural income model, rural environment improvement model and hybrid model as development project name, respectively. The 5 parts and 21 indices for evaluation of redundant farmlands rehabilitation directions were extracted by case studies and experts brainstorming. The weights of each index were determined by Analytic Hierarchy Process (AHP). The developed evaluation indices were applied to study areas located on Yanghwa district of Gongju-city and Aewol district of Jeju-city. From the results of this study, it was ascertained that the evaluation indices developed in this study would help the decision-makers in the planning process of redundant farmlands rehabilitation directions.