• 제목/요약/키워드: korean communities

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온라인 패션 커뮤니티 행동 유형에 따른 시장 세분화 (Market Segmentation Based on Online Fashion Communities' Behavioral Types)

  • 안정희;이수진
    • 복식
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    • 제65권7호
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    • pp.101-117
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    • 2015
  • Along with the development of overall internet service, online fashion communities appeared and have started to thrive. The growth of mobile service has led to an even bigger expansion of these communities, and will wield a strong influence for the foreseeable future. The purpose of our study is to investigate the relationship between the behavior of these fashion communities and personality characteristics of the community features. For our data analysis, our study used 302 men and women, aged from their 20's and their 40's. The study results are as follows: First, some features, such as interaction, entertainment, promotion, information, and system technique, were drawn as the factors of the online fashion communities. Second, we could divide the community behavioral types into three different groups: buyer, maven, and onlooker groups. Third, all three groups showed different community characteristics. The primary concern for the buyer group was promotion while the mavens and the on-lookers were most interested in information. Fourth, they also showed different demographic characteristics in terms of gender, age, duration of membership, on-line time per visit and number of visits per week. These results show that a new strategy is necessary for online fashion communities to differentiate themselves and their marketing to consumers and their community behavioral types.

신갈나무림의 군집별 토양특성 (Soil Properties in Quercus mongolica Communities)

  • 박관수;장규관
    • 한국환경생태학회지
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    • 제12권3호
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    • pp.236-241
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    • 1998
  • 본 연구는 한반도 냉온대 낙엽수림을 특징짓는 신갈나무림에 대한 군집별 토양특성의 차이를 조사하기 위해 실시되었다. 본 연구에서 식생조사 및 토양조사는 1991년 4월부터 1994년 10월까지 오대산과 중왕산 전역에서 신갈나무가 우점하는 임분을 대상으로 실시하였다. 조사지역내의 신갈나무 우점림을 Braun-Blanquet 법으로 분석한 결과, 조사지역은 신갈나무-분비나무, 신갈나무-당단풍, 신갈나무-생강나무, 신갈나무-복장나무, 그리고 신갈나무-까치박달나무의 5개 군집으로 구분되었다. 신갈나무-분비나무군집은 A층의 토심이 약 5cm로서 다른 군집에 비해서 가장 얕게 발달되어 있었으며 식물뿌리는 주로 토심 l0cm까지 발달되어 있었고 건조한 토양수분 상태를 유지하고 있었다. 신갈나무-당단풍군집과 신갈나무-생강나무군집은 매우 유사한 토양의 형태학적인 특성을 가지고 있었으며 A층의 토심이 약 20cm였다. 식물뿌리는 주로 토심 20cm까지 발달되어 있고 약간 건조한 토양수분 상태를 유지하고 있었다. 신갈나무-복장나무군집과 신갈나무-까치박달나무군집의 두 군집 또한 유사한 토양특성을 보여주었는데 A층의 토심은 약 35cm로서 다른 군집에 비해 가장 깊은 A층을 유지하고 있었다. 식물뿌리는 주로 토심 40cm이상까지 발달되어 있었고 비교적 습윤한 토양수분 상태를 유지하고 있었다. 신갈나무-복장나무군집 그리고 신갈나무-까치박달나무군집은 0~100m 그리고 10~20cm의 토양깊이에서 가장 많은 유기물. 전질소, 치환성 Ca. Mg. 그리고 K 함량과 CEC를 가지고 있었으며, 신갈나무-분비나무군집에서 가장 적은 유기물, 전질소, 그리고 CEC를 가지고 있었다. 본 연구 결과 신갈나무림의 군집별 토양특성은 큰 차이가 있는 것으로 나타났으며, 이러한 결과는 존재하는 식생들에 의한 차이보다는 우선적으로 군집간 주요 분포지의 입지조건이 다르기 때문으로 사료된다.

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仁川 近海 島嶼地域의 海岸植物 群落에 따른 細胞性 粘菌의 出現과 分布 (Occurrence and Distribution of Cellular Slime Molds in Relation to the Coastal Plant Communities of Islands near Inch`on)

  • Hong, Jeong-Soo;Nam-Kee Chang
    • The Korean Journal of Ecology
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    • 제14권4호
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    • pp.457-467
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    • 1991
  • Occurrence and distribution of the celluar slime molds in relation to the coastal plant communities of svven islands near inch'on wereinvestigated. as a results, total seven species were isolated from the soils of the coastal plant communities. These are dictyostelium mucoroides, polysphodylium pallidum, dictystelium polycephalum. d. mucoroides was the most commonly found in the coastal plant communities investigated, and was dominant pecularly in the coastal mixed forests, the coastal broad-leaved forests and salt marshes. In the coastal coniferous forest and the coastal dune sand plants, hoeever, p. violaceum was the dominant species. species diversity was relatively was relatively high in the coastal coniferous ferests and the coastal mixed forests. However, agerage number of species isolated from all plant communities was very low,2.8.

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커뮤니티 활성화를 위한 사이버 아파트 구축 현황에 관한 연구 (A Study on the Current Trends of Cyber Apartment for Vitalizing Communities)

  • 성문희;최진원
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2003년도 정기총회 및 추계학술대회
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    • pp.109-114
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    • 2003
  • Fast economic growth resulted in fast industrialization and metropolitanization. At that time, housing was supplied in large quantity, and the apartment became a dominant type of housing in Korea It is partly due to the high population density. But, large quantity supply of apartments caused a lot of problems. One of the biggest problems is decomposition of traditional communities. As interest about quality of life grows since the 90's, the recovery of communities is getting an import assignment that should be solved. Architects investigate ways of arrangement and community facilities planning. off-line Communities might be substituted by or supported with cyber communities through the use of IT technology. The construction of cyber apartment is getting popular by the governmental incentive in 1999. At first, the infrastructure has been constructed, and then the current emphasis in on forming the information community to provide various service.

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GIS Indicator on New Urbanist Communities in Southeastern US

  • Sim, Sunhui
    • 대한공간정보학회지
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    • 제24권2호
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    • pp.89-94
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    • 2016
  • New urbanism is a school of urban development that combines residential, commercial, and civic land uses in a dense urban fabric of carefully prescribed form. Its advocates claim that New Urbanist developments are superior to prevailing urban development patterns on social and environmental sustainability. Its critics, however, argue that New Urbanism developments do not measure up to the social and environmental ideals and are, in some cases, just another form of urban sprawl. The goal of this study is to evaluate various criticisms of New Urbanist communities. This paper used empirical evidence to determine the performance of New Urbanist developments on the broader spatial and social context as opposed to the internal characteristics of the communities using GIS indicators. The results showed that the communities did not meet conventional criteria for New Urbanist ideals.

Changes in Endophyte Communities across the Different Plant Compartments in Response to the Rice Blast Infection

  • Mehwish Roy;Sravanthi Goud Burragoni;Junhyun Jeon
    • The Plant Pathology Journal
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    • 제40권3호
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    • pp.299-309
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    • 2024
  • The rice blast disease, caused by the fungal pathogen, Magnaporthe oryzae (syn. Pyricularia oryzae), poses a significant threat to the global rice production. Understanding how this disease impacts the plant's microbial communities is crucial for gaining insights into host-pathogen interactions. In this study, we investigated the changes in communities of bacterial and fungal endophytes inhabiting different compartments in healthy and diseased plants. We found that both alpha and beta diversities of endophytic communities do not change significantly by the pathogen infection. Rather, the type of plant compartment appeared to be the main driver of endophytic community structures. Although the overall structure seemed to be consistent between healthy and diseased plants, our analysis of differentially abundant taxa revealed the specific bacterial and fungal operational taxonomic units that exhibited enrichment in the root and leaf compartments of infected plants. These findings suggest that endophyte communities are robust to the changes at the early stage of pathogen infection, and that some of endophytes enriched in infected plants might have roles in the defense against the pathogen.

미국 코하우징의 주민참여 사례연구 (A Study on Residents' Participation of Cohousing in USA)

  • 조정현;최정신
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2009년도 추계학술발표대회 논문집
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    • pp.27-32
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    • 2009
  • Since the cohousing idea, originated in Northern Europe, was introduced in the U.S. by architects Kathryn McCamant and Charles Durrett in the early 1980s, there are recently the largest number of cohousing communities and rapidly expanded in the U.S. So, it is necessary to appreciate the cohousing communities developed in U.S. In this study, we investigated the physical characteristics of cohousing and the methods of its residents' participation by means of a case study on cohousing communities in U.S. and suggested the future direction of the cohousing community. Also, this work could be exploited when the cohousing is introduced to Korea. At first, the general status and characteristics of U.S cohousing was explored using diverse sources such as literature, paper and Web site. And then, the direct visit survey was used to obtain the more exact and specific data about physical aspects and residents' participation in each community. We found that cohousing communities were mostly located in the urban and Rural area, which was founded in the 1990s, and new communities continue to be created in the U.S. Typically, the number of households is from 20 to 30 in one community. The land is generally owned by the community itself and its size is within 10 acres. Communities usually serve optional group meals in the common house at least two or five times a week. Each member's income is separated and the community members should take care of their common properties. The leader of community does not exist and most communities don't have the organization of community members. All cohousing communities use consensus as the basis for group decision-making.

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Responses of Soil Rare and Abundant Sub-Communities and Physicochemical Properties after Application of Different Chinese Herb Residue Soil Amendments

  • Chang, Fan;Jia, Fengan;Guan, Min;Jia, Qingan;Sun, Yan;Li, Zhi
    • Journal of Microbiology and Biotechnology
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    • 제32권5호
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    • pp.564-574
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    • 2022
  • Microbial diversity in the soil is responsive to changes in soil composition. However, the impact of soil amendments on the diversity and structure of rare and abundant sub-communities in agricultural systems is poorly understood. We investigated the effects of different Chinese herb residue (CHR) soil amendments and cropping systems on bacterial rare and abundant sub-communities. Our results showed that the bacterial diversity and structure of these sub-communities in soil had a specific distribution under the application of different soil amendments. The CHR soil amendments with high nitrogen and organic matter additives significantly increased the relative abundance and stability of rare taxa, which increased the structural and functional redundancy of soil bacterial communities. Rare and abundant sub-communities also showed different preferences in terms of bacterial community composition, as the former was enriched with Bacteroidetes while the latter had more Alphaproteobacteria and Betaproteobacteria. All applications of soil amendments significantly improved soil quality of newly created farmlands in whole maize cropping system. Rare sub-communitiy genera Niastella and Ohtaekwangia were enriched during the maize cropping process, and Nitrososphaera was enriched under the application of simple amendment group soil. Thus, Chinese medicine residue soil amendments with appropriate additives could affect soil rare and abundant sub-communities and enhance physicochemical properties. These findings suggest that applying soil composite amendments based on CHR in the field could improve soil microbial diversity, microbial redundancy, and soil fertility for sustainable agriculture on the Loess Plateau.

청주시 매봉산 도시림의 식생, 토양특성 및 토양미소절지동물상 분석 (The Vegetation, Soil Characteristics, and Soil Microarthropods of Maebongsan Urban Forest in Cheongju-si, Korea)

  • 김흥태
    • 한국환경복원기술학회지
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    • 제19권6호
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    • pp.1-17
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    • 2016
  • The study was aimed to understand the ecological status of the Maebongsan urban forest in Cheongju-si through investigating the vegetation, soil characteristics, and soil microarthropods. Phytosociological analysis for twenty plots revealed that the plant communities were classified into Pinus rigida community, Robinia pseudoacacia community, Castanea crenata community, Quercus acutissima community, Pinus strobus community, Pinus koraiensis community, and Larix kaempferi community. The importance value showed that afforestation tree species like Castanea crenata, Robinia pseudoacacia, and Pinus rigida dominate the urban forest. DBH analysis indicated that although the plant communities seem to be under the succession to Quercus forest, the dominance of Castanea crenata and Robinia pseudoacacia might still persist for several more decades. The properties of soils from the plant communities showed that loamy sand and sandy loam in soil texture, low organic matters, and severe acidification. The abundance of soil microarthropods were not different among the plant communities except Castanea crenata community and Pinus koraiensis community. The two communities showed especially low abundance of collembola and acarina. Thus, we can say that Castanea crenata community and Pinus koraiensis community seem to have been influenced strongly by anthropogenic activities.

모듈래러티를 이용한 소셜 네트워크의 커뮤니티 통합에 필요한 에지 수 결정 방법 (A Method to Decide the Number of Additional Edges to Integrate the Communities in Social Network by Using Modularity)

  • 전병현;한치근
    • 한국컴퓨터정보학회논문지
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    • 제18권7호
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    • pp.101-109
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    • 2013
  • 본 연구는 소셜 네트워크 그래프에서 커뮤니티로 탐색된 2개의 커뮤니티를 하나의 커뮤니티로 통합하는 방법을 연구한다. 모듈래러티는 커뮤니티의 품질을 보여주는 측정치이다. 통합하여야 할 커뮤니티에 에지를 추가함에 따라, 커뮤니티의 품질은 증가하게 된다. 커뮤니티를 통합하기 위해서, 각 커뮤니티의 모듈래러티 값을 이용하여, 추가하여야 할 에지 수를 결정하는 방법들을 제안한다. 단순 그래프를 이용한 실험계산을 통해 통합된 커뮤니티의 모듈래러티 값이 통합하기 전의 각각의 커뮤니티의 모듈래러티 값보다 크게 만드는 방법이 유효한 커뮤니티 통합 방법임을 보이고. 그 방법이 적용될 수 있는 그래프의 조건을 확인한다. 이 결과를 이용하여 실제 소셜 네트워크 예에 대한 실험계산을 통해 본 방법의 유효성을 확인한다.