• Korean Journal of Environmental Biology
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• v.17 no.1
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• pp.89-94
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• 1999

The genetic polymorphism and relationship among 14 Zelkova serrata registered as the natural monument in Korea were investigated using RAPD markers. N-J tree indicated that individuals in Kangwon-do were clustered and those in Yangam-gun and Damyang-gun of Chollanam-do were done closely. However, all the others were not agreed with the geographical distribution. Maybe this discordance was resulted from their movement by human being than any biological factors. The polymorphic percentages among individuals were from 77.8 to 100. From the high polymorphism, it was supposed that existing natural monuments were independently originated in the ancestors of long differentiated populations.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.289-291
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• 2023

다양한 신재생 에너지 발전 중에서 수력발전은 풍력발전과 더불어 탄소배출이 가장 적은 에너지 발전 중 하나이며, 정부의 "2050 탄소중립" 발표에 따라 근래 수력발전에 대한 관심이 증폭되고 있는 추세이다. 하지만 국내의 지리적 특성상 수력발전의 규모가 국외에 비해 소규모이며, 대규모 수력발전의 경우에도 설치가능지역이 고갈되어 다수의 소규모 수력 발전소 설치라는 방향성이 불가피한 현실이다. 이에 따라 본 연구에서는 유한요소법을 이용하여 소규모 수력발전에 가장 많이 사용되는 콘크리트 댐 형상에 대한 구조해석을 실시하고 정수압 하에서 각 콘크리트 댐의 변형 거동 및 안정성을 분석하였다.

• Journal of the Korean Geographical Society
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• v.49 no.2
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• pp.113-138
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• 2014

Despite the growing numbers of regional problems (e.g. conflicts between the state and localities, inter-local conflicts, etc.) associated with the state-led developmental projects, the Korean social sciences have been unable to offer satisfying explanations and solutions to the regional problems. This is mainly because the existing works, which have been taken captured by the assumptions of "methodological nationalism", significantly lack the socio-spatial understandings of the state actions and the relations between the state and localities, thereby seeing the issues of regional development mainly in terms of either the economic efficiency defined at the national scale, or the plan rationality of the national bureaucrats. With this problem orientation in mind, this paper aims to explore the ways in which the state and localities are interacting, conflicting and negotiating with one another through the mediation of the state-led developmental projects. Focusing on the developmental processes of Masan Export Processing Zone from the mid-1960s to the early 1970s, it examines the multi-scalar processes through which the state-led industrial complex developmental processes have been influenced by the complex and dynamic interactions among social forces and actors acting at diverse geographical scales (e.g. the global, national, local, urban, etc.). This analysis shows that the regional policies of the Korean developmental state were more heavily influenced by the interactions, contestations, and collaborations among social forces and actors, acting in and through the state, at various geographical scales, rather than by the economic and techno-bureaucratic rationality.

• Journal of Korean Society of Forest Science
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• v.102 no.1
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• pp.122-128
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• 2013

Genetic diversity and population genetic structure were estimated in nine natural populations of Exochorda serratifolia in South Korea using ISSR marker system. Average of polymorphic loci per primer was 5.8 (S.D.=2.32) and percentage of polymorphic loci per population was 78.7% with total 35 loci from 6 ISSR primers. In AMOVA, 27.8% of total genetic variation came from genetic difference among populations and 72.2% was resulted from difference among individual trees within populations. Genetic differentiations by Bayesian inference were 0.249 of ${\theta}^{11}$ and 0.227 of $G_{ST}$. Inbreeding coefficient for total populations was 0.412. There was significant correlation between genetic distance and geographic distance among populations. On the results of Bayesian cluster analysis, nine populations were assigned into three groups. The first group included 5 populations, and the second and the third had two populations per group, respectively. These three regions could explain 10.0% of total genetic variation from hierarchical AMOVA, and the levels of among-population and among-individual were explained 19.7% and 70.3%, respectively. The geographic distribution of populations following the three Bayesian clusters could be explained with mountain range as Baekdudaegan which is the main chain of mountains in Korea. The mountains as the physical barrier might hamper gene flow in the pearlbush. So when protected areas are designated for conservation of this species, we should consider those three regions into considerations and would better to choose at least one population per region.

• Korean Journal of Plant Taxonomy
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• v.39 no.1
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• pp.48-54
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• 2009

We investigated the genetic diversity of an endemic rare species, Forsythia ovata Nakai by examining 93 ISSR amplicons in 84 individuals distributed among five populations. The overall percentage of polymorphic ISSR amplicons was 54.8% and mean number of amplicons per ISSR primer was 6.6. The amount of genetic diversity was relatively lower than other shrub species. The Mt. Seokbyeong and Mt. Seorak B populations had the highest level of genetic diversity. Although the Seokgae-jae population had the lowest level of genetic diversity, the population was genetically the most distinctive from the other populations. About 30.6% of the total variation was allocated between five populations, which was slightly higher than other shrub species. Such a pattern of genetic variation may have resulted from the limited distribution and small population sizes of F. ovata. The UPGMA dendrogram based on Nei's genetic distance showed some decisive geographic patterns. These results suggest that, in addition to the preservation of the natural stands, the conservation of larger number of populations with small number of individuals per population is more effective for the dynamic ex situ conservation and for maintaining the genetic diversity of F. ovata than smaller number of populations with large number of individuals.

• Journal of Wetlands Research
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• v.22 no.2
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• pp.100-105
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• 2020

Northern pipevine (Aristolochia contorta) commonly inhabits marginal areas between waterside and terrestrial vegetation. In particular, A. contorta is ecologically important in the marginal areas as a food plant of dragon swallowtail butterfly (Sericinus montela), which is designated as vulnerable species in the Republic of Korea. For long-term sustainability of the plant population, assessment of the genetic diversity of exist populations should be conducted. Genomic DNA of A. contorta leaf samples were extracted from four populations where the vigorous growth were observed in the South Korea. Intra-population genetic diversity and inter-population genetic distance were assessed using randomly amplified polymorphic DNA (RAPD) with five polymorphic random primers. Overall genetic diversity was lower, compared to other wetland species (h: 0.0607 ~ 0.1401; I: 0.0819 ~ 0.1759), while GP showed the highest intra-population genetic diversity. Despite of the geographical distance, GP showed the larger genetic distance from other populations. This result seemed to be caused by the fragmented habitat and lower sexual reproduction of A. controta. Mixture of the different source populations and construction of the proper environmental condition such as shade and physical support for sexual reproduction should be considered for conservation of A. contorta population.

• Korean Journal of Environment and Ecology
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• v.28 no.2
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• pp.161-170
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• 2014

This study classified the types of major forest vegetation and analyzed the syngeographical characteristics of the vegetation in the Mt. Deokhang with exhumed lime rocks. The forest vegetation on the ridge of Mt. Deokhang was classified into 1 community group, 3 communities, 2 groups, and 2 subgroups, 5 types in total. The syngeographical form of Deokhangsan fully exhibited the topographical peculiarity, proximity to subalpine, and limestone zone. In addition, Carex ciliato-marginata, Carex humilis var. nana, and so forth which appear as species with high consistency in the well-drained semiarid zone represent the soil environment of the lime stone area and northern plants such as Carex ussuriensis and Asplenium ruta-muraria represent the characteristics of the vegetation in alpestrine in close proximity. Moreover, the Carpinus turczaninowii in the area appears to show the characteristics of migratory vegetation due to the peculiarity of the habitat. The syngeographical characteristics of this study area show both the characteristics of the habitat and phytogeographic characteristics. Furthermore, they are expected to contribute to the diversity in community and habitat form in Korean peninsula in terms of vegetation science.

• Journal of the Korean Society of Costume
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• v.51 no.8
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• pp.123-139
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• 2001

본고는 공간, 시간, 계급, 종교 등 하위문화 텍스트의 병행인용 즉 상호텍스트성(intertextuality)을 통해, 20세기 대중 문화의 상징 마돈나 뮤직 비디오와 공연 등의 인체, 의상, 이미지 등에 나타난 포스트모던 정체성을 연구함으로써, 현대 미디어 문화를 관통하는 주체적 여성 정체성과 미적 주관성을 이해하고자한다. 첫째, 상호공간텍스트성 복식은 스패니쉬룩. 태국룩. 게이샤룩, 테크노펑크룩, 테크노 카우걸룩 등의 동서양의 지리적 소외감을 통해 비권위적 다양한 시선을 제시함으로써, 다국적 자본주의와 함께 확장된 미적 체험을 하게 한다.; 둘째, 상호시간텍스트성 복식은 중세 엠파이어 드레스, 18세기 로코코시대의 robe'a la francaise, 미래적 제 3의 종 룩 등 동시적 몽환적 이미지를 통해 유희적 유토피아를 지향하였다.; 셋째, 상호계급텍스트성 복식은 그라피티룩, 펑크룩, 키치룩, 먼로 룩, 보깅(voguing), 에비타 룩 등 상하류층, 하위문화, 빈부, 권력의 유무를 병행인용하여, 좋은/나쁜 취향, 창녀/성녀 이분법을 해체하고 반부르조아적 저항과 물질주의를 찬양하는 탈계급적, 양면적 정체성을 구축하였다. ; 넷째, 상호종교텍스트성 복식은 상징적 가부장인 카톨릭교 텍스트를 인용하여 펑키크리스찬 룩, 에로틱 크리스찬 룩 등의 선/악, 신성성/관능성, 미추, 정숙성/비정숙성의 이분법, 비장미를 해체함으로써 예술의 자율성, 무의식이 강조된 쾌락주의적, 반권위주의적 정체성을 주장한다. 섹슈얼리티에 있어, 시선, 권력, 쾌락의 주체가 됨으로써, 미적 범주에 있어 선악, 미추, 정숙성과 비정숙성의 이분법을 해체함으로써, 유동적 자아를 구성한 마돈나 의상의 포스트모던 정체성은 여성에게 확대된 가능성을 제공하며 내부로부터 해체된 열린 복식을 지향한다.

• Journal of the Economic Geographical Society of Korea
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• v.18 no.1
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• pp.115-135
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• 2015

In the glocalization a common phenomenon of several nations reveals knowledge innovation and growth by the important subject of region and state and is studied at theory and practice. the successful cases of regional development in an advanced country have leading innovation through regional innovation system and cluster. therefore we are necessary to analyse how the knowledge spillovers in innovative cluster as the reduced model of regional innovation system guide firm innovation and region growth. this article reviews theories and empirical studies of the knowledge spillovers in the regional innovation system and innovative cluster of innovative geography and proposes a new research issues for further explorations of the knowledge spillovers. Previous studies assist that knowledge spillovers exist in knowledge-based industries of specific local area and local innovation accomplishes through pure knowledge spillover. but limits of these studies include narrow region and technological area, few analytical variable and exclusion of rent knowledge spillover. therefore new research topics related with that exemplifies geographical dimension(concentration and decentralization), technological dimension(knowledge based industry), category of analytic variables(previous indicators, time, and social capital), conceptualization(appropriation means, markets for technology) etc.

• International Commerce and Information Review
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• v.19 no.2
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• pp.237-258
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• 2017

This research thoroughly analyzes prior literature related to the flexibility of cargo airlines to switch the airport and discusses the driving factors of such footloose nature. The main purpose of the study is to identify the most deterrent factors leading to airport relocation decision which determines cargo industries role on the global trade. Qualitative research based on systematic process analysis was conducted as a main research method. As a result, 24 factors related to airport-airline relationship were chosen and categorized into four main groups; (1) Location issues, (2) Restrictions, (3) Poor quality, and (4) High costs. The findings derived from the analysis of selected studies suggest that restriction related issues (e.g. night-time flight restrictions, customs administration) followed by location issues (e.g. absence of origin destination demand) have created more constraint to airport-airline relationship.