• 농업생명과학연구
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• 제46권1호
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• pp.9-16
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• 2012

본 연구는 국내의 뽕나무 재배면적 및 오디 생산량의 변화 추이를 파악하고, 전라북도 부안군 산림을 대상으로 뽕나무의 효과적 재배를 위한 적지를 과학적으로 탐색하고자 수행하였다. 최근 3년간의 국내 뽕나무 재배면적은 꾸준히 증가하였으며, 국내의 오디 최대 산지는 전라북도인 것으로 조사되었다. 특히 부안군은 가장 넓은 뽕나무 재배면적을 차지하고 있었다. 한편, 부안군 산림을 대상으로 해발고, 향, 경사, 토성 그리고 유기물 함량의 5개 재배적지 인자와 GIS를 이용하여 뽕나무 재배적지를 탐색한 결과, 부안군 전체 산림면적 16,608ha 중 663ha가 뽕나무 재배적지인 것으로 탐색되었다. 특히 변산면, 상서면 그리고 진서면의 산림은 많은 재배적지를 포함하고 있어 재배면적 확대에 유리한 지역인 것으로 분석되었다. 본 연구의 결과는 향후 부안군의 산림을 대상으로 한 뽕나무 재배면적 확대계획 수립 시 효용성 높은 자료로 활용될 것으로 기대된다.

• 한국지리정보학회지
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• 제20권3호
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• pp.153-169
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• 2017

본 연구에서는 솔라시티를 지향하고 있는 대구광역시를 대상으로 GIS 프로그램을 이용한 태양광 적지분석을 통해 적지유형을 분류하고, 구군별 적지현황을 알아보고자 하였다. 또한 이 결과를 바탕으로 실제 대상지를 선정하여 솔라에너지를 중심으로 한 친환경 주거단지를 계획하였다. 이를 위해서 기존 사례연구 고찰을 통해 태양광시설 설치 조건 및 기준을 확립하여, 적지 지표를 선정하였고, 선정한 지표를 입지조건, 배제조건, 등급조건으로 구분하였다. 분석 결과 대구광역시 태양광 적지면적은 총 $153.95km^2$로 대구광역시 면적 대비 17.6%를 차지하고 있었으며, 달성군에서 가장 크게 나타났다. 적지 지도를 바탕으로 대구광역시 동구 신서동에 위치한 단독주택단지를 대상지로 선정하여 솔라에너지를 중심으로 한 단지계획을 제시하였다. 본 연구는 대구광역시 태양광 적지분석에 있어 다양한 지표를 고려하고, 분석함으로써 향후 대구광역시 태양광 사업 및 정책에 기초자료로 활용될 수 있을 것이며, 계획한 친환경 주거단지는 솔라시티 대구광역시의 이미지를 명확하게 홍보하는데 기여할 수 있을 것으로 판단된다.

• 한국산림과학회지
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• 제21권1호
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• pp.39-45
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• 1974

지위지수추정시 발생되는 오차를 감소시키기 위하여 수고생장과정에 적합한 실험식과 기타 정보를 얻고자 이 연구를 착수한 것이다. 11개 실험식으로 물오리나무, 일본잎갈나무, 잎갈나무, 잣나무, 젓나무, 리기다소나무, 상수리나무와 갈참나무의 수고생장 추정식을 계산하였다. 계산결과에 의하면 수종간에는 적합실험식의 종류가 서로 다르며 지위지수는 임령에 따라 항상 일정한 것이 아니고 변동하는 경우가 있으므로 지위지수추정시 수간석해 또는 다변형지위지수 곡선을 이용함이 합리적인 것으로 생각된다.

• Structural Engineering and Mechanics
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• 제73권6호
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• pp.651-666
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• 2020

In this study, the spatial variation mechanisms of large far-field earthquakes at engineering scales are first investigated with data from the 2008 Ms 8.0 Wenchuan earthquake. And a novel 'coherency cut-off frequency' is proposed to distinguish the spatial variations in ground motions in the low-frequency and high-frequency ranges. Then, a practical piecewise coherency model is developed to estimate and characterize the spatial variation in earthquake ground motions, including the effects of source-to-site distances, site conditions and neighboring topography on these variations. Four particular earthquake records from dense seismograph arrays are used to investigate values of the coherency cut-off frequency for different source-to-site distances. On the basis of this analysis, the model is established to simulate the spatial variations, whose parameters are suitable for both near- and far-field earthquake conditions. Simulations are conducted to validate the proposed model and method. The results show that compared to the existing models, the proposed model provides an effective method for simulating the spatial correlations of ground motions at local sites with known source-to-site distances.

• Journal of Korean Biological Nursing Science
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• 제22권1호
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• pp.36-44
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• 2020

Purpose: The purpose of this study was to predict measuring site suited for abdominal skin fold thickness (ASFT) by measuring the distribution of abdominal subcutaneous fat thickness (AScFT) and ascertain the correlations among obesity indicators. Methods: The size of analysis materials was 124 secondary data measured by ultrasonic device, bioelectrical impedance analyzer and caliper. Data were analyzed using t-test, and Pearson's correlation. Results: The average of AScFT was 10.63± 6.79mm with its range 1.39-36.16 mm, and AScFT of female and of central parts were thicker than those of male and outer parts in the abdomen. The average of ASFT was 29.26±12.59 mm. Site 5 on Figure 1 was most similar to the average of AScFT in both sexes. Body mass index (BMI) and waist hip ratio (WHR) were 23.65±3.98 and 0.88±0.05 respectively. The body weight, BMI, WHR, visceral fat, ASFT vs AScFT revealed in significant correlation (r= .29, r= .55, r= .39, r= .33. r= .29). Conclusion: BMI and WHR seem more useful than other obesity indicators, when obesity control is necessary for Type 2 diabetes patients. Site 5 on Figure 1 is most suitable site to measure ASFT.

• Spatial Information Research
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• 제11권3호
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• pp.241-249
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• 2003

본 연구의 목적은 GIS 분석기법에 의해 북한의 경제활동에 최적인 산업입지 지역을 분석하기 위한 기초 자료를 제공하는데 있다. 이러한 목적을 달성하기 위해 먼저 남포지역이 사례지역으로 선정되었다. 이는 환경적 요인과 사회문화적 요소에 의해 최적의 입지지역을 구분하기 위함이다. 두 번째로 자연환경 요소인 토지이용 상태와 지형요소가 분석되었다. 토지피복도와 식생지수 분포도가 작성되었고, 고도와 경사도 등을 분석하기 위해 수치고도모형이 작성되었다. 재해영향평가의 수단인 USLE는 산업단지 개발사업 도중의 환경변화를 최소화하는 방안으로 제안되어 본 연구에 적용되었다. 본 연구에서는 GIS와 USLE의 분석에 의해 환경변화를 최소화하는 최적의 산업입지지역 선정 방안을 제안하였다.

• 한국건축시공학회지
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• 제2권1호
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• pp.147-154
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• 2002

In the Past, The selection of individual method of construction was done by head of construction site or an experienced person very frequently. By doing this, The wrong selection of construction method without exact adjudication of construction site situation lead to increasing of cost and extension of construction term. Finally it will effect all over the construction process. Especially, In case of underground construction in the beginning, there are a lot of a variable factor and it also effect on the entire construction process and it need very careful process. The purpose of this study is to present the best suitable methodology for selection of construction method by considering potential risk of construction method and variables together with external condition for underground construction. The purpose of this study Is to select the most suitable construction method by analysing potential conditions(construction site situation and client request in designing ) To do this, We prepared arrangement rule to arrange the conditions for construction method. And thin make checklist of the analyzing construction method. Though above process, To expect the risk of individual construction method using above risk checklist and using Analytic Hierarchy process among Multiple-Criteria Decision making, the professional opinions is to be adapted. By doing this, it can lead and select the most suitable construction method considering the data which get from risk density test.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2001년도 학술논문발표회
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• pp.99-117
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• 2001

In the past, The selection of individual method of construction was done by head of construction site or an experienced person very frequently. By doing this, The wrong selection of construction method without exact adjudication of construction site situation lead to increasing of cost and extension of construction term. Finally it will effect all over the construction process. Especially, In case of Underground construction in the beginning, there are a lot of a variable factor and it also effect on the entire construction process and it need rely careful process. The purpose of this study is to present the best suitable methodology fer selection of construction method by considering potential risk of construction method and variables together with external condition for Underground construction. The purpose of this study is to select the most suitable construction method by analysing potential conditions(Construction site situation and Client. Request in designing) To do this, We prepared arrangement rule to arrangement conditions for construction method. And then make Checklist the analyzing construction method. Though above process, To expect the risk of individual construction method using above risk checklist and using Analytic Hierarchy Process among Multiple-Criteria Decision Making, the professional opinions is to be adapted. By doing this, It can lead and select the most suitable considering method considering the data which get from risk density test.

• 한국환경복원기술학회지
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• 제18권1호
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• pp.103-113
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• 2015

Korean pines(Pinus koraiensis) are one of the major plantation species in the Republic of Korea and their natural habitats range from Japan and China to Siberia. The seed of Korean pines, pine nuts, are well know for good food reserves. Due to the global changes which drive the Korean peninsula into the semi-tropical climate, current plantations and natural habitats of Korean pines are faced with the change in the environmental conditions to some extent. To anticipate suitable sites for Korean pines in the future, the location of Korean pines were extracted from the 'Map of suitable trees on a site' that provides the map of suitable trees on a site considering tree species for timber and special uses, and then MaxEnt modelling was used for generating a prediction map on the basis of statistical analysis. As a result, the order of predicted suitable sites were Kangwon-do, Kyungsangbuk-do and Chungcheongbuk-do provinces and sites with high elevation within those provinces were considered most suitable in common. The prediction map of suitable sites for Korean pines presented that suitable sites in the future decreased by 72.2% by 2050's and almost disappeared with a decrease of 92.1% by 2070's on a nationwide scale. In relation to the major production regions of pine nuts in South Korea - Gapyung gun and Yangpyung gun, Kyunggi province and Hongcheon gun, Kangwon province, suitable sites within their areas were predicted to increase by 2050's but become extinct in South Korea by 2070's. To establish a long-term countermeasures against the improvement on forest productivity quality in terms of managing national food security, the result from this study can be considered as a firm basis of predicting plantation suitability. Also, it can be used to predict the changes in supply of forest products and thereby market values in accordance with climate change scenarios.

• 대한공간정보학회지
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• 제1권2호
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• pp.207-221
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• 1993

단지조성(주택단지 또는 공업단지)의 각 단계별로 설계의 기본이 되는 자료의 성격을 분류한 후 단지조성업무의 전산시스템화를 위한 구성모델을 제시하였다. 특히 적지분석 및 토공설계 부분의 전산화와 평가 결과를 통하여 향후 단지조성업무의 효율화에 기여할 것이다.