• Wind and Structures
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• 제30권2호
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• pp.165-180
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• 2020

To determine tornadic wind loads, the wind pressure, forces and moments induced by tornadoes on civil structures have been studied. However, in most previous studies, only the individual building of interest was included in the wind field, which may be suitable to simulate the case where a tornado strikes rural areas. The statistical data has indicated that tornadoes induce more significant fatalities and property loss when they attack densely populated areas. To simulate this case, all buildings in the community of interest should be included in the wind field. However, this has been rarely studied. To bridge this research gap, this study will systematically investigate the influence of a community of buildings on tornadic wind fields by modeling all buildings in the community into the wind field (designated as "the Community case under tornadic winds"). For comparison, the case in which only a single building is included in the tornadic wind field (designated as "the Single-building case under tornadic winds") and the case where a community of buildings are included in the equivalent straight-line wind field (designated as "the Community case under straight-line winds") are also simulated. The results demonstrate that the presence of a number of buildings completely destroys the pattern of regular circular strips in the distribution of tangential velocity and pressure on horizontal planes. Above the roof height, the maximum tangential velocity is lower in the Community case under tornadic winds than that in the Single-building case under tornadic winds because of the higher surface friction in the Community case; below the roof height, greater tangential velocity and pressure are observed in the Community case under tornadic wind fields, and more unfavorable conditions are observed in the Community case under tornadic winds than under the equivalent straight-line winds.

• The Korean Journal of Ecology
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• 제21권5_2호
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• pp.519-529
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• 1998

The vegetation of alpine and subalpine zone from timber line, 2,000m altitude, to the upper area of Mt. Packtu were investigated by phytosociological method. The plant distribution along to the different altitudes shown as follows: Betula ermani community with Rhododendron redowskianum occupied dominantly at 2,000m area as patch forms, Rhododendron redowskianum community with Vaccinium uliginosum, at 2,180-2,200m area, both Vaccinium uliginosum and Rhododendron redowskianum community were compatible with each other at 2,243m area. Rhododendron redowskianum community at 2,250, Salix rotundifolia community, Erigeron thunbergii var. glabrata community, Dryas octopetala var. asiatica community and Carex atrata community were occurred frequently at 2,263m around Chonji Lake. Rhododendron aureum, Thunbergii coccinea and V accinium uliginosum showed higher cover degree than other species at 2,370m area, Phyllodoce coerulea-Rhododendron aureum community at 2,400m, Rhododendron redowskianum community at 2,470m, Rhododendron aureum community at 2,490m, Salix rotundifolia at 2,520m, Rhododendron redowskianum community at 2,580m, Dryas octopetala var. asiatica community, Salix rotundifolia, and bistorta achotensis etc. at 2,650 altitude area were settled as sparse, creeping shape on the surface soil and dwarf plants of about 15cm heights.

• 디자인학연구
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• 제16권1호
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• pp.149-158
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• 2003

온라인 커뮤니티는 사회성(Sociability)을 중심으로 구성되기 때문에 웹사이트 개발에 있어서도 사용성(Usability)측면과 함께 사회성(Sociability)측면이 같이 고려되어야 한다. 그러나 대부분의 온라인 커뮤니티들이 기존 웹사이트 개발 프로세스에 의해 개발되고 있어 사회성 요소를 고려한 개발이 어려운 실정이다. 평가시스템은 개발의 방향성을 제시하는 중요한 도구이다. 이에 본 연구에서는 사회성 요소를 반영하는 커뮤니티 평가 시스템을 도입하여, 온라인 커뮤니티 평가를 위한 가이드 라인을 제시하고자 하였다. 먼저 온라인 커뮤니티를 이루는 12가지 사회성요소를 바탕으로 평가 요소를 도출하고, 실제 운영되고 있는 대표적인 커뮤니티 사이트를 유형별로 선정하여 평가를 실시하였다. 결과적으로 온라인 커뮤니티 서비스를 8가지로 유형화하여 유형별 사회성 요소의 활성화 정도를 도출해 낼 수 있었다. 본 평가를 통하여 도출된 유형별 사회성 활성화 수치는 기존 온라인 커뮤니티 사이트를 평가할 수 있는 가이드라인이 될 수 있으며, 개선 방향을 제시하는 데 중요한 역할을 할 것으로 기대된다.

• 한국언론정보학보
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• 제36권
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• pp.423-462
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• 2006

본 연구는 온라인커뮤니티 상에 나타나는 자아성향(self-construal)과 커뮤니케이션유형간의 관계를 실증적으로 검증한 논문이다. 본 연구의 목적은 자아성향이 온라인 커뮤니티 내에서 어떻게 드러나는 것은 물론 자아성향이 온라인 커뮤니티 내의 커뮤니케이션과 어떤 관계에 있는지를 밝혀보고자 하는 것이다. 따라서 자아성향과 온라인 커뮤니티 내의 여러 가지 변인(온라인 커뮤니티 특성, 온라인 커뮤니티 내 커뮤니케이션 방식, 그리고 온라인 커뮤니티 회원 간 관계수준)의 관계를 살펴보았다. 자료 수집은 온라인과 오프라인 설문조사를 통하여 이루어졌으며, 온라인 응답자 79명과 오프라인의 응답자 255명의 응답을 조사하였다. 분석 결과, 온라인 커뮤니티 내에서 자아성향은 오프라인과 유사하지만 보다 복합적으로 드러나고 있었으며 여러 가지 변인들과 유의미한 관계를 보였다. 특히, 본 연구조사에서 '독특성'으로 명명된 독립적 자아성향은 온라인 커뮤니티 특성, 커뮤니케이션 방식, 그리고 관계수준에 많은 영향을 미치는 중요한 요인으로 분석되었다.

• Child Health Nursing Research
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• 제16권4호
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• pp.344-351
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• 2010

Purpose: This study was done to examine effects of a discharge education program using on-line community on parenting stress, baby care confidence for mothers of premature infants and health problem of premature infants. Methods: Using a non-equivalent control group pretest-posttest quasi-experimental design, 32 participants were assigned to an experimental (17) or a control group (15). Mothers in the experimental group were introduced to the discharge education program 2 weeks before the baby was discharged. They participated in the on-line community for 4 weeks after discharge. Parenting Stress Index and Baby Care Confidence Scale were utilized for data collection. Data were analyzed using descriptive statistics, $X^2$-test, Fisher's exact test, and Mann-Whitney U test with the SPSS program 16.0 version. Results: In the experimental group, mean scores for parenting stress were lower than for the control group (Z=-3.176, p=.001), while scores for confidence in baby care were higher than for the control group (Z=-3.195, p=.001). Conclusion: Findings indicate that discharge education programs using on-line community have the positive effect of decreasing parenting stress and increasing baby care confidence for mothers and decreasing health problems for infants. Therefore utilization of the internet and online community to educate parents of premature infants is recommended.

• 한국산업정보학회논문지
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• 제13권4호
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• pp.155-172
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• 2008

본 연구에서는 선행연구를 바탕으로 온라인 브랜드 커뮤니티 내에서의 상호작용성의 구성요인들을 종합적으로 도출하고, 이러한 구성요인들이 브랜드 커뮤니티에 대한 정서적 몰입을 매개로 하여 기업관점에서의 브랜드 커뮤니티의 궁극적 성과인 브랜드 자산의 구성요인들에 미치는 영향을 구조적으로 파악하고자 한다. 상호작용성은 4가지 구성요인 즉, 유연성 개인화 반응성 연결성으로 개념화 하였으며 브랜드 자산은 브랜드 연상, 브랜드인지, 브랜드 충성도로 구성하였다. 온라인 브랜드커뮤니티에 회원으로 가입하고 있는 부산지역 대학생 127명을 표본으로 실증 분석하였으며, 분석 결과, 개인화, 반응성, 유연성은 커뮤니티 몰입에 통계적으로 유의한 영향을 미치는 것으로 나타났으며 연결성은 유의적인 영향을 미치지 않는 것으로 나타났다. 브랜드에 대한 정서적 몰입은 브랜드 자산의 3가지 구성요소, 즉 브랜드 연상 브랜드 인지, 브랜드 충성도에 긍정적인 영향을 미치는 것으로 나타났다.

• 보건행정학회지
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• 제2권2호
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• pp.90-111
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• 1992

Community involvement is to be the keystone of primary health care, Unfortunately, efforts to promote it failed in many countries. Author inquired into the reasons why such efforts fail, and the alternative strategies for effectively promoting it in Korean situation today. In doing so, the concept of community involvement is clarified as an amalgamation of two different concepts; one is that of the community development, and the other is that of approaches for overcoming the alienation of the people from the health care process. Stategies of community involvement in Korea so far followed the line of the community development, e.g. village health worker. It loses, however, the feasibility as Korea has experinced so cial and economic developpment. The strategies of the second line of thought is now more feasible; empowering the people by providing more information and enhancing comitment to health, improving acceptabilty of community involvemt on the part of the health professionals and the bureaucrats, and building the mechanism of community involvement into the health policy-making process.

• 한국약용작물학회지
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• 제14권6호
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• pp.347-353
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• 2006

This study was conducted to evaluate the vegetation structure and ordination of the Peucedanum japonicum Thunb. community by the Phytosociological method, floristic composition table on east coast of South Korea. The vegetation of Peucedanum japonicum Thunb. community was classified into 2 communities such as the Aster Spathulifolius community and the calystegia soldanella-Artemisia princeps community. Vegetation of the Peucedanum japonicum Thunb. community with the Aster spathulifolius community was shown southward, whereas vegetation of Peucedanum japonicum Thunb. community with the calystegia soldanella-Artemisia princeps community was shown northward from the base line of Pohang at North latitude of 36" 05'. Accordingly, the Peucedanum japonicum Thunb. community was grown commonly with the Aster spathulifolius community southward of the base line of Pohang, whereas it was grown commonly with the calystegia soldanella-Artemisia princeps community northward on the east coast. All environmental conditions of habitat taken together, the optimum habitat of Peucedanum japonicum Thunb. was at Ulsan geographically and the middle region of sea cliff topography, and was suitable for alkali. sandyloam.

• 한국멀티미디어학회논문지
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• 제9권12호
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• pp.1657-1668
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• 2006

The last few years have represented a boom for the online gaming industry. Internet-based online games have been an increasingly popular form of entertainment. The gaming industry estimates there will be over 26 million online gaming participants in 2002. The rapid development of online game content and related information technology will increase the size of the industry and have a profound impact on many aspects of our lives and our society. This paper develops the exploratory LISREL model for identifying the factors affecting the players' loyalty to a specific brand of online game. The concepts of flow, word of mouth, feedback, challenge, social norms, and online community activities, etc, are all introduced into the model, as the independent variables directly and indirectly affecting loyalty. Based on data collected from an online survey, the validity of the model has been tested and interesting conclusions have been developed concerning the relationships between loyalty and flow, word of mouth, and other independent variables. It is hoped that this result might provide useful guidelines for developing successful online game content.

• Educational Technology International
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• 제6권2호
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• pp.101-111
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• 2005

This study was to examine effects of On-Line Community Assisted Small Group Peer Tutoring(OCSPT) on university students' learning strategies. To achieve the purpose, twenty-eight university students were randomly selected. Fourteen students participated in OCSPT and they were divided into small groups consisted of 2 to 5. Students in experimental group participated in OCSPT for total thirty-four hours during sixteen weeks. There is no treatment for the other fourteen students in control group. To measure students' learning strategies, Motivated Strategies for Learning Questionnaire (MSLQ) shorts has been used. The result revealed that students in experimental group showed higher possession than control group in resource-management strategy(p<.05). However, there were no significant difference between both groups in cognitive and motivative strategies.