• 한국한의학연구원논문집
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• 제14권3호
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• pp.49-56
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• 2008

Glehnia littoralis Fr. Schmidt et Miquel is an important medicinal plants in East Asian countries. This plant species naturally distributed in Korea, Japan, China, and Taiwan, but it is a rare plants living in the coastal dune in Korea. To investigate the genetic variation, genetic diversity and genetic evolutionary relationships of 14 different geographical G. littoralis, ITS sequence and random amplified polymorphic DNA (RAPD) were analyzed. On the basis of ITS sequences, it was clearly showed that the ITS1 and ITS2 sequences among 14 populations are identical regardless of geographical origin excepting 2 bp in pair-wise comparison of ITS1. Furthermore, RAPD results also showed that 14 different geographical G. littoralis produce various polymorphic patterns without critical relationship among neighboring regions. These combined results suggest that the geographical variation and genetic evolution of G. littoralis is stable and provide important information on genetic diversity, and conservation of this rare plant species in situ and ex situ.

• The Plant Pathology Journal
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• 제29권3호
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• pp.344-349
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• 2013

Intraspecific variation in morphometry of pine wood nematodes Bursaphelenchus xylophilus and B. mucronatus in relation to geographical locations in South Korea was investigated using morphometric characters (body length, a, b and c ratio, stylet length, and spicule length for a male nematode and V (%) value for a female nematode). B. xylophilus was isolated from Pinus thunbergii in Jinju (1998), Ulsan (2000), Yangsan (2000), Mokpo (2001) and Jeju (2004), and from P. densiflora in Gumi (2001). B. mucronatus was isolated from P. thunbergii in Jinju (1991) and from P. densiflora in Milyang (2001). The body length of male and female B. xylophilus had the highest coefficient of variability and showed significant differences among geographical locations. The V (%) value for female B. xylophilus showed the lowest coefficient of variability, changing little with geographical area and host plant. All morphometric characters in B. mucronatus except for stylet length and female body length showed no significant differences between locations or hosts, suggesting they may not be affected by geographical area or host plant.

• 환경위생공학
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• 제16권3호
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• pp.54-60
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• 2001

The need and concern about ecosystem are growing rapidly. However, ecosystem management systems are still in the first stage since the data are handled locally and separately. It results in the waste of money and time. In this research, we designed and implemented ecosystem management system of stream region using geographical information system(GIS) that is able to be used to manage the natural resource efficiently. It is expected to be used as a useful tool for Improvement of environment and management of ecosystem as well as recovery of natural environment.

• 대한지리학회지
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• 제34권3호
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• pp.337-351
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• 1999

본 논문은 영국과 미국을 중심으로 실업 연구 동향을 고찰함으로써 우리 날 실업연구를 수행하는데 있어서의 과제와 이론적 기초를 모색하는 것을 목적으로 하였다. 실업의 지리적 패턴에 대한 관심은 계량혁명 시기에 시작되었으며, 이후 실업에 대한 지리학적 연구에는 많은 변화가 있었다. 실업에 대한 공식 정의들을 실업에 대한 제한적 묘사만을 제공하기 때문에 대안적인 지표-보다 광범위하고 포괄적인-가 요구되고 있다. 공식정의에 근거한 지역실업 연구는 현실의 문제를 축소하게 되는 경향이 있는데 이러한 문제를 해결하기 위해서 노동시장 계정 접근이 대안적인 연구틀로서 제시된다.

• 생약학회지
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• 제44권4호
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• pp.332-335
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• 2013

Geographical classification of A. gigas was performed in the present study using UHPLC-DAD combined with multivariate data analysis techniques. Six active constituents were isolated from A. gigas; nodakenin, marmesin, decursinol, demethylsuberosin, decursin and decursinol angelate. One hundred sixty eight A. gigas samples were simultaneously determined using UHPLC-DAD. A principal component analysis (PCA) and partial least square discriminant analysis (PLS-DA) was used to classify the samples according to geographical origins (Korea and China). The origins of A. gigas from Korea and China were correctly classified by 81.6% and 93.8% using PLS-DA Y prediction. This result demonstrates the potential use of UHPLC-DAD combined with multivariate analysis techniques as an accurate and rapid method to classify A. gigas according to their geographical origin.

• 기술혁신연구
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• 제16권1호
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• pp.165-190
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• 2008

The purpose of this study is to find problems of Geographical Cluster and to analyze relationships between problems of a Geographical Cluster and its performance. The problems of geographical cluster include those of technical fusion, increase of incidental expenses, conditions of settlement, and absence of industrial infrastructures, and performance factors are satisfaction with the cluster policy and within cluster firm's performance. According to the results of analyses based on the data collected from 75 firms located in the Gumi electronic industry cluster complex, first, problems of technical fusion, and absence of industrial infrastructures had a negative(-) effect on satisfaction with the cluster policy. Second, absence of industrial infrastructures had also a negative(-) effect on within cluster firm's performance. In the conclusion, further discussion, limitation of this study and future direction were suggested.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2008년도 추계학술발표대회 논문집
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• pp.310-313
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• 2008

The wind resource potentials of South Korea are estimated as preliminary stage using the national wind map which has been being established by numerical wind simulation and GIS (Geographical Information System) exclusion analysis. The wind resource potentials are classifying into theoretical, geographical, technical and implementation potentials and the calculation results are verified by comparing to other countries' potentials. In GIS exclusion, urban, road, water body, national parks and steep slope area are excluded from onshore geographical potential while water depth and offshore distance from the shoreline are applied s offshore exclusion conditions. To estimate implementation potential, dissemination records of European countries are adopted which is about 1/8 of geographical potential.

• 대한지리학회지
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• 제41권5호
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• pp.623-629
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• 2006

현재 동해의 해저지형 가운데 한국대지, 쓰시마분지, 순요퇴 3개의 지 명 이 해저지명목록집(Gazetteer)에 등재되어 있다. 이들 지명은 지명등재의 근거가 전혀 기록되어 있지 않으며, 단지 국제해도(INT 511)에 표기되어 있는 명칭이 해저지명목록집에 기록된 것으로 추정된다. 그러나 이 중 쓰시마분지와 순요퇴는 수로학적 지질학적 근거나 지리적인 관련성이 부족하므로 지리적 성인적 측면에서 관계가 깊은 울릉분지와 이사부해산으로 명칭이 대체되어야 한다.

• Journal of the Korean Data and Information Science Society
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• 제20권5호
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• pp.919-924
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• 2009

Geographical location carries information such as demography, local economy, environment, and life styles, which could be the sources of cancer occurrence. Analyzing geographical location associated with cancer occurrence can be instructive to physicians, patients, and health administrators regarding resource allocation, expenditures, prophylaxis and treatments. In this paper, we explored the correspondence relationship between geographical locations and mortality rates of the cancers using correspondence analysis and illustrated the approach with the mortality rates of the top 10 cancers in the 75 counties in Arkansas from 2001 to 2005. Geographical variations with respect to the mortality rates of cancers are evaluated across Arkansas counties. Based on the contingency table, correspondence analysis model is developed and the simple indices which indicate the degree to which the regions and the cancers affect each other are calculated. Quantitative results are visualized and mapped in two-dimensional graphs.

• Spatial Information Research
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• 제2권2호
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• pp.197-205
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• 1994

본 논문에서는 여러 응용 분야의 GIS에서 기본 map으로 사용되는 지적도에 대하여 raster 영상데이타로부터 벡터(vector)영상을 구하는 벡터화 알고리즘 및 자동 지역 생성 알고리즘을 제시하고, 이들로부터 직선(edge)들로 이루어진 segment, region(polygon)등의 주요 지형 객체 인식 및 처리를 자동적으로 수행하는 고속 지형 객체 처리 소프트웨어 ARM(Automatic geographical en-tity Recognition and Modeling)에 대해서 설명한다.