• Journal of the Korean Society for information Management
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• v.22 no.3 s.57
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• pp.289-306
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• 2005

As FRBR defines structural framework based on ER modeling for bibliographic data elements, an effective tool is required to implement FRBR model. In this paper, we present the implementation of FRBR model based on Topic Maps. To show the effectiveness of Topic Maps as the implantation language of FRBR, we implement FRBR model of MyongSungHwangHu by means of Topic Maps. We can ascertain that topic-association of Topic Maps conceptually harmonize with entity-relation of FRBR, which means that Topic Maps is suitable for the implementation of FRBR model.

• 한국태양에너지학회:학술대회논문집
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• 2009.04a
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• pp.277-280
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• 2009

Wind monitoring system is an absolutely-required system for assessing a performance and fatigue load of the wind energy generator in an on-shore wind energy experimental research complex. It was implemented for the purpose of monitoring the wind information measured from a meteorological tower at the monitoring house and of utilizing the measured data for the performance assessment, by using the LabVIEW program. Then, by adding the performance assessment-related data acquired from the wind energy generator during the performance assessment and the data recorder for synchronizing the data of meteorological tower, the system was implemented. Because it transmitted the data by converting the output 'RS-232' of data logger which measures the wind condition into CAN protocol, the data error rate was minimized, This paper is intended to explain the developed wind data monitoring system.

• Journal of Agricultural Extension & Community Development
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• v.16 no.1
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• pp.181-200
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• 2009

중국에서는 관광, 휴식, 체험교육의 목적으로 농촌지역의 놀이농원이 증가하고 있다. 특히 농촌지역 수변공간의 놀이공원에 대한 이용의 증가는 수변공간에 대한 경관 및 단지 설계가 중요한 요소로 작용하고 있다. 이 연구에서는 산동성 등주시의 수변놀이농원의 이용자 1194명을 대상으로 설문지와 관찰 등의 연구방법을 통하여 이용 행태와 요구를 분석하였다. 이용자들은 연령대에 따라 다른 이용행태 및 요구를 보이고 있다. 먼저 이용행태에서 20대 이하는 흥미와 동적인 놀이의 이용행태를 선호하며, 연령대가 증가함에 따라 덜 동적인 이용행태를 선호하였다. 또한 모든 이용자들은 새롭고, 흥미롭고, 편안한 이용시설에 대한 요구가 높았다. 경관요소에 대한 평가에서 20대와 41살 이상의 집단간에 유의미한 차이를 보이고 있으며, 20~40살 집단간에는 유의미한 차이가 없었다. 20대의 이용자들은 시설이용에서 안전성과 레크리에이션기능에 대한 요구가 높았고, 41살 이상의 이용자들은 휴식시설과 공간의 확대를 요구하였다. 또한 이용자들의 대부분이 휴식시설에 대한 요구에서 그늘, 편안함, 양적인 차원에서 시설확대 및 보완의 요구가 높았다. 따라서 농촌관광에서 여가공간의 이용하는데 있어서 방문객의 태도와 만족도에 관한 연구들은 인본주의에 바탕을 둔 편의시설의 확대와 질적 개선이 요구되고 있으며, 이러한 결과를 토대로 최근에 증가하고 있는 중국인의 한국관광 및 방문에 대비하여 중국인의 관광시설선호와 이용만족 증가를 위한 실증적인 자료수집과 대안모색이 필요하다.

• Information and Communications Magazine
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• v.30 no.7
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• pp.58-62
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• 2013

최근에 ICT 기반의 융합 서비스 분야로 인구 밀집지역인 메가 시티에서의 교통, 전력, 상/하수도, u-헬스, 안전/보안등의 문제들을 근본적으로 해결하기 위하여 ICT기반 개방형 플랫폼을 이용한 서비스 인프라 구축 및 개선을 위한 연구들이 많이 진행되고 있다. 이러한 ICT 기반의 융합 인프라 구축 서비스들은 M2M(Machine to Machine)과 D2D(Device to Device)를 기본 연결 수단으로 사용하고 있으며, 이들을 기반으로 서비스 정보 전달 및 제어 정보를 실시간으로 처리하기 위한 IP 기반의 플랫폼이 지원되어야만 융합 서비스가 지속적으로 제공 가능할 것이다. 이들 융합서비스 중에서 전력과 관련하여 한국의 스마트그리드 사업은 기후 변화 대응을 위하여CO2 배출을 줄이고, 에너지 효율을 향상하여 새로운 비즈니스 모델을 만들어 일자리와 신산업을 창출하기 위한 국가 프로젝트로 진행되었다. 그러나, 현재의 전력관련 국내 상황을 살펴보면 여름철과 겨울철에 반복적인 전력 수급 불안으로 인해 피크 전력에 대한 예비력이 부족하여 국가적인 재난인 블랙 아웃의 위기를 걱정하고 있는 실정이다. 본고에서는 한국의 스마트그리드 제주실증단지 사업과 관련하여 현황 및 개선 사항들을 알아보고, 향후 거점지구와 국가 단위의 서비스 확장을 위하여ICT 기반의 개방형 인프라 플랫폼 기술의 중요성을 강조하고자 한다. 이러한 M2M과 D2D를 기반으로 하는 융합 서비스의 성공적인 수행은ICT 기반의 개방형 플랫폼의 우선적인 개발이 필요하며, 플랫폼 기반의 디바이스 보급과 네트워크의 구축이 진행되어야 지속 가능한 융합 서비스를 제공할 수 있을 것이다.

• The Korean Journal of Financial Management
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• v.17 no.2
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• pp.29-47
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• 2000

본 연구는 재벌집단의 기업과 비재벌기업으로 분류하여 이들 집단사이에 나타나는 투자행위의 차이점을 유동성제약의 틀 속에서 실증 분석한 것이다. 연구의 기간은 1986년부터 1995년도까지 10년으로 하고 연구의 대상은 연구 기간동안 연속적으로 증권거래소에 상장된 기업으로 한정하여 총 128개의 업체를 표본으로 이용하였다. 표본을 재벌규모별, 장세별, 산업별 분류에 의한 횡단면 분석결과 우리나라 비재벌기업의 경우, 전반적으로 재벌집단의 기업에 비하여 현금흐름이 투자에 대해 보다 더 민감할 것이란 충분한 근거를 얻지 못하였다. 그러나 재별의 범주를 5대재벌기업으로 한정하였을 때는 재벌기업에 비해 비재벌기업들의 투자는 현금흐름에 대하여 민감하다는 결론을 얻어 재벌기업에 비하여 비재벌기업은 정보문제나 유인문제에 직면 할 수 있음을 시사하였다. 규모에 따른 재벌기업의 분석에서는 상대적으로 규모가 작은 재벌의 기업이 규모가 큰 재벌의 기업보다 유동성이 제약되고 있음을 나타냈으며, 장세별 분석에서는 단지 주가의 상승기에 한하여 재벌집단 기업간의 비교에서 현금흐름은 30대재벌, 10대재벌, 5대재벌의 순서로 민감함을 보여 규모가 작은 집단의 재벌기업이 규모가 큰 집단의 재벌기업에 비하여 유동성이 제약됨을 나타내었다. 산업별 분류에 의한 분석에서는 통계학적으로 의미 있는 결과를 얻지 못하였다.

• Journal of the Economic Geographical Society of Korea
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• v.22 no.3
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• pp.304-320
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• 2019

Interest in gazelle-firms, which contribute to sustained job creation, is increasing. This study aims to analyze the regional characteristics of employment by gazelle-firms in terms of job quality as well as job quantity. Furthermore, the characteristics by industry for each type are compared. The major results are as follows. First, the regional characteristics of job creation are varied in terms of the quantitative and qualitative aspects. Second, it is found that the characteristics by industry for each type are different. Therefore, each type should have discriminative strategy. These results provide policy implications that gazelle-firms' policies should be tailed to regional characteristics in order to foster gazelle-firms more effectively.

• Journal of the Korean Institute of Gas
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• v.24 no.6
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• pp.83-90
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• 2020

This study conducted a risk assessment using the HyKoRAM program created by international joint research. Risk assessment was conducted based on accident scenarios and worst-case scenarios that could occur in the facility, reflecting design specifications of major facilities and components such as compressors, storage tanks, and hydrogen pipes in the hydrogen charging station, and environmental conditions around the demonstration complex. By identifying potential risks of hydrogen charging stations, we are going to derive the worst leakage, fire, explosion, and accident scenarios that can occur in hydrogen storage tanks, treatment facilities, storage facilities, and analyze the possibility of accidents and the effects of damage on human bodies and surrounding facilities to review safety.

• Journal of the Korean Institute of Landscape Architecture
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• v.38 no.3
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• pp.41-52
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• 2010

The purpose of this paper is to evaluate visitor satisfaction(VS) in waterfront parks in terms of resources, facilities, embodiment of theme(ET), site composition(SC), relaxation activity space(RAS), and dynamic activity space(DAS), which are supply-side components in the planning process of waterfront parks, in order to answer the research question; 'How is visitor satisfaction of waterfront parks determined?' After reviewing the literature on parks and the building process of waterfront parks in Korea, we constructed a conceptual framework and have ascertained a research hypothesis. We had obtained data through a questionnaire survey from 327 visitors at waterfront parks, based on the quota sampling method. We have analyzed the data using the path analysis method. We found that: 1) The direct effects of resources and facilities on VS turned out to be 0.273 and 0.306, respectively while the indirect effects are 0.114, 0.170, respectively. 2) The direct effects of SC, as a component of the planning process on VS, turned out to be 0.243 while that of ET had no affect on VS. The indirect effect of ET and SC on VS turned out to be 0.059 and 0.018, respectively. 3) The direct effects of RAS on VS turned out to be 0.129 while the indirect effects of RAS and DAS on VS turned out to be 0.002 and 0.017, respectively. 4) The size of causal effect, in order, were facilities, resources, SC, RAS, ET, and DAS. 5) Resources and facilities, as a park foundation, compose 64.84 percent of total causal effect while ET and SC have 24.04 percent and RAS and DAS have 11.12 percent, respectively. These research results imply that: 1) Existing waterfront parks should be regenerated with the embodiment of water related theme and with improved facilities for RAS and visitor programs and/or facilities for DAS. 2) The relationship among ET, SC, RAS and DAS should be increased for a significant improvement of VS, and 3) A process-oriented approach turned out to be highly useful for the development of substantive theory and methodology. It is recommended that a structural equation model on waterfront parks be developed using more empirical data and this approach be widely applied for testing its validity.

• 한국벤처창업학회:학술대회논문집
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• 2007.04a
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• pp.203-226
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• 2007

The purpose of this research is to analyze the impact of business scope and technological innovation capability(TIC) on firm performance in SMEs. Among the 1,077 SME sample data collected with the help of Korean Industrial Complex Corporation, 228 sample data from capital goods sectors had been selected and analyzed. Several mutiple regression models were developed to test the main and the interaction effects of two independent variables business scope and TIC on SME performance. The empirical analysis show that the number of product lines, one of the two scope variable measured, is positively correlated with the return on sales(ROS). Among the variable of TIC, the number of intellectual property rights(IPRs) is positively correlated with the sales growth rates of SMEs, which the ratio of engineers to total employees is positively correlated with the ROS of SMEs. The results also delineated some interaction effects of business scope and TIC on SME performance. There exists a positive interaction effect of the ratio of engineers to total employees and the number of product lines both on ROS and scales growth rate. The interaction of the number of customers and the number of IPRs positively effects on ROS, and also the interaction of the number of product lines and the number of IPRs are positively related with ROS. Findings of this research indicates that it is necessary for SMEs in capital goods sectors to accumulate technological innovation capability and to expand business scope to improve firm performance. Furthermore, the accumulation of internal TIC should accommodate with the expansion of business scope to gain an improved performance. Particularly, adequate technological innovation capability is required to address the need of expanded customers when enlarging the scope of customers.

• The Journal of the Korea Contents Association
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• v.12 no.11
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• pp.469-481
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• 2012

The demand for small-sized housing has been increasing due to the recession of real-estate price and the increase of small-sized households. Especially, the demand for affordable housing has been increasing since the style of housing and the location fits the lifestyle of small-sized household. In addition, many investors have been buying it because it has advertised as an investment property holding high-return ratio. However, an empirical analysis about the selling price and the return ratio has not been done yet. Therefore, the purpose of the research is having the empirical analysis based on the selling price and return ration by examining the affordable housing in Seoul. The urban-life housing more than 50 generations of the Seoul was irradiated for the analysis. And the linear regression analysis and PLS(Partial Least Square Regression) analysis was used for the empirical analysis. The result of analysis, based on the linear regression analysis, showed that factors including neighboring housing price and subway catchment area have a significant effect to the determinant factors of housing price. The analysis for return ratio showed neighboring housing price, subway catchment area and amenities affects the ratio. Especially, the fault of using small sample was covered by using the partial least square regression in this research.