• 환경영향평가
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• 제17권1호
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• pp.67-79
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• 2008

Global warming, which is one of the most serious challenges, has been the subject of intense debate and concern for many scientists, policy-makers, and citizens for at least the past decade. To protect the health and economic well-being of current and future generations, we must reduce our emissions like carbon dioxide. Alternatives to achieve an energy future without serious global warming are to change to clean and renewable sources of energy like the wind, the sun lights, rivers, the biomass, hydrogen, and oceans. To identify some of the key and new environmental impacts associated with renewable energy and hydrogen energy, we set up the new conceptual methodology. Specifically, new identified environmental and health impacts are related with the usage of hydrogen energy. When comparing with fossil fuel, the renewable energies can reduce the release of carbon dioxide when they are used except hydrogen produced from fossil fuel. However, all renewable energy technologies are not appropriate to all applications or locations. Our results suggest that all of alternatives to replace fossil fuel can release the several global and local impacts although they seems to be smaller than the impacts from fossil fuel. Therefore, the quantitative and detail analysis to assess environmental impacts of the alternative energies might be useful to make our decision for the future energy against the global warming.

• 한국산림과학회지
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• 제87권2호
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• pp.179-187
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• 1998

본 연구는 미국 South Dakota주 Black Hi11s 지역의 관광 영향에 대한 지역 주민 태도와 관리 정보를 얻고자 실시되었다. 관광 영향에 대한 지역 주민 태도를 평가하기 위하여 중요도-성취도 분석방법이 이용되었다. 총 184매의 응답 자료가 연구에 이용되었다. 회수율은 340 중 184매로 54%였다. 대부분의 응답자들은 관광의 지역 경제 영향에 대하여는 높은 긍정적 태도를 갖고 있었으며, 관광의 환경 영향에 대해서는 뚜렷한 부정적 태도는 보이지 않았다. 관광 영향의 23개 인자 중 거주 기간, 소득과 같은 응답자들의 사회 경제적 특성에 따른 유의적 차이가 일부 발견되었다. 중요도-성취도 평가 결과 유용한 장래 관리의사 정보가 제시되었다.

• 자원ㆍ환경경제연구
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• 제14권3호
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• pp.729-751
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• 2005

RPS(Renewable Portfolio Standards)제도는 시장기능을 통하여 전력생산의 일정 양 또는 비율을 신재생에너지로 충당하도록 의무화함으로써 신재생에너지의 보급을 활성화하는 제도이다. 본 논문은 RPS제도의 국내 도입이 전력시장, 개별 산업부문 및 경제 전체에 어떤 영향을 미칠 것인가를 검토하였다. 의무비율을 채우지 못하거나 과다충족한 경우 각 해당부분을 대상사업자로부터 구매하거나 또는 대상사업자에게 판매할 수 있는 TREC(Tradable Renewable Energy Credits)시장과 RPS제도 실시에 따른 추가적인 공급비용이 유발하는 소비자의 추가비용을 판단할 수 있는 소매시장을 분석하여 최종소매가격과 공급량의 변화를 살펴보았다. 끝으로 RPS제도 도입에 따른 전력가격의 상승과 공급의 변화가 국민경제에 미치는 효과를 분석하였다. 주요 결과를 보면, 2011년 기준으로 전력가격의 용도별 평균치는 약 5% 정도 상승, 부문별 물가는 평균 0.268% 상승, 그리고 부문별 GDP는 평균 1.940% 감소하여 물가상승효과는 작은 반면 GDP 감소효과는 큰 것으로 나타났다.

• Journal of Information Science Theory and Practice
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• 제7권1호
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• pp.39-51
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• 2019

Open access is a paradigm whereby the electronic versions of scholarly publications are made freely accessible without any restrictions. It is actively promoted globally and is also promoted domestically in accordance with this global trend. However, there is a growing need to evaluate existing activities and to seek policies for the steady spread of open access. This study examines the necessity of switching to a national repository from existing institutional repositories through policy direction analysis of open repositories. We examined domestic open access policies by analysing various overseas cases and the situation in South Korea. Finally, we determined the validity of investment in a national repository by analysing its social and economic impacts using the modified Solow-Swan model. The main parameters for applying the modified Solow-Swan model were estimated, and the domestic research and development expenditure was predicted via a regression method. Then, we applied a range of rate of returns to research and development (10% to 50%) to various scenarios and examined the effects of increasing accessibility and efficiency by 1% to 10%. We found that the implementation of a national open access repository in South Korea would have a substantial impact (to the tune of 147 billion won), without considering the potential costs of such a repository. Based on the estimates of the social and economic impact of a national repository, the implementation of a national open access repository in South Korea is economically viable. Besides having beneficial social and economic impacts, a national repository is expected to enhance awareness of open access among Korean researchers and institutions.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.425-432
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• 2009

The construction industry has been a main pillar and serves as a regulator of the Hong Kong economy. Subsequently, the fluctuations in the level of construction output can induce significant rippling effects to the economy. The Asian Financial Crisis started in 1997 and the SARS outbreak in 2003 both introduced major challenges and impacts to the Hong Kong economy and consequently the construction sector. Such decline in the importance of construction has suggested a possible structural change in the sector. It is worth investigating the driving forces behind the construction demand and see if they have changed after the heavy impacts in the past decade. The above considerations have, therefore, been the motivation of the present study to model the Hong Kong residential construction demand through multiple regression technique which can identify the significant influencing factors to the residential demand. The residential construction is studied as it constitutes a significant portion of the total construction volume. The residential sector has great influence to the general economy of Hong Kong. It is found that the underlying market structure and the driving factors for Hong Kong residential demand before and after the Asian Economic Crisis and SARS outbreak are different, suggesting that the residential construction sector or even the larger construction industry may have undergone a major structural change as Hong Kong's economy approaches maturity. It is also observed that the past literatures on construction demand are mostly focusing on predicting demand under a stable economic environment. Hence, it is worth examining if it is possible to model during economic hardship when the residential sector fluctuate dramatically under different external impacts, such as the recent global financial tsunami.

• 대한지리학회지
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• 제47권3호
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• pp.459-470
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• 2012

본 연구는 강원도 농업을 사례로 1993-2010년 기간 동안 11개 시군별 기후, 지리 및 토양, 사회 경제적 변수들에 대한 패널자료를 구축하고 리카디언 방법을 사용하여 극한기후 변수들이 논과 밭 경작유형별로 토지가치에 미친 경제적 효과를 추정하고자 시도한다. 추정결과에 따르면, 호우 관련 극한기후 변수는 논과 밭의 토지가치와 부정적인 관계가 있다. 여름철 관련 극한기온 변수들은 토지가치에 음(-)의 영향을 미치고 있지만, 한파를 제외한 겨울철 관련 극한기온 변수들은 토지가치와 정(+)의 관계를 보여주고 있다.

• 한국컴퓨터정보학회논문지
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• 제10권6호
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• pp.269-278
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• 2005

인터넷 차단 시스템은 기업내부에서 직원들의 인터넷 사용 내역에 대한 세부적 통제 수단으로 많이 각광받고 있다. 인터넷 차단 시스템은 기업의 인터넷 사용 형태에 많은 변화를 가져오지만 아직까지 이의 효과에 대한 세부적인 연구가 진행된 사례가 없다. 본 논문은 인터넷 차단 시스템의 도입에 대한 경제적 효과를 분석하여 인터넷 차단 시스템을 현재 운영중이거나 도입에 대하여 검토 중인 기업의 투자 및 운영에 대한 의사결정지표를 제시한다. 기존 연구를 통해 인터넷 차단 시스템에 대한 비용 및 효과 측정 수단을 개발하였으며, 실제 기업 전산망에 인터넷 차단 시스템 및 관련 측정 시스템을 구축하여 시스템 구축 전후의 추이 변화를 측정하여 효과 분석에 사용했다. 결론적으로 인터넷 차단 시스템이 일부 역효과에도 불구하고 기업의 생산성 향상 및 통신 대역폭의 개선에 매우 긍정적인 효과를 준다고 파악하였다.

• 한국IT서비스학회지
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• 제11권2호
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• pp.147-167
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• 2012

In this paper, we attempted to theorize the multi-faceted impacts of smart work on economic activities. In this vein, we adopted socio-economic perspective which includes individual, firm, and social support aspects, and explored the variables related to the quality of life among them. First, smart work patterns are categorized as telework, mobile office, teleconferencing, and social collaboration. And relevant variables are extracted with reference to industrial cases and relevant literatures which investigated economic impacts of digital convergence. Next, with the data collected from experts, following delphi method, validation of variables and explorations of significant factors affecting quality of life were conducted by adopting stepwise regression method. The distinguishing traits of this research are two-folds. The one is the investigation of social support and quality of life aspects of smart work, which has been relatively limited in the digital convergence research field. The other is the comparative analysis of smart work advantages by distinguishing individual and firm aspects separately. The result offers useful insights for socio-economic perspective researches on digital convergence application area.

• Journal of Preventive Medicine and Public Health
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• 제29권4호
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• pp.831-842
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• 1996

Demand for high quality medical care has recently been increasing in step with high level of income and education. Patients prefer the use of large general hospitals to small community hospitals. Large hospitals, usually located at urban area, expand their capacities to cope with the increasing demand, therefore, they easily secure revenue necessary for growth and development of hospitals. However, small community hospitals are facing with serious financial difficulties caused from the reduction of patients in one hand and the inflation of cost in another. If small rural hospitals were closed, the closure would have negative impacts on local economies in addition to the decrease in access to medical care. Community leaders should have an insight on the contribution of community hospitals to local economies. They could make a rational decision on the hospital closure only with the understanding of hospital's contribution to the community. This study is designed to develop an economic model to estimate the contribution of rural hospital to local economies, and also to apply this model with a specific hospital. The contribution of a hospital to local economies consists of two elements, direct effect and multiplier effects. The direct impacts include hospital's local purchasing power, employee's local purchasing power, and the consumption of patients coming from outside the community. The direct impact induces multiplication effect in the local economy. The seed money invested to other industries grows through economic activities in the region. This study estimated the direct effect with the data of expenditure of the case hospital. The total effect was calculated by multiplied the direct effect with a multiplier. The multiplier was drown from the ratio of marginal propensity of income and expenditure. Beside the estimation of the total impacts, the economic effect from the external resources was also analyzed by the use of the ratio of patients coming outside the region. The results are as follows. 1. The direct economic contribution of the hospital to the local economy is 1,104 million won. 2. The value of multiplier in the region is 2.976. 3. The total economic effect is 3,286 million won, and the multiplication effect is 2,182 million won. 4. The economic contribution from the external resources is 245 million won which is 7.5% of the total economic effect.

• 한국산림과학회지
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• 제87권4호
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• pp.620-629
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• 1998

본 연구는 국립공원 지정과 앞으로의 관리방향에 대한 지역주민의 태도와 환경적, 경제적, 사회문화적 관광영향에 대한 지역주민의 지각을 파악하고, 지역주민의 사회경제적 특성에 따른 관광영향 지각 차이를 검증하였다. 1997년 11월과 12월 동안 설악산 국립공원 경계 내에 거주하는 지역주민 153명의 설문자료를 수집, 분석하였다. 지역주민들은 긍정적, 부정적인 환경적, 경제적 관광영향을 모두 지각하는 한편, 사회적 관광영향에 대해서는 크게 지각하지 않는 것으로 나타났다. 또한 관광의 부정적인 영향 지각에도 불구하고 더 집중적인 편광개발을 선호하며 설악산 보전을 위한 이용자 수 제한에는 반대하는 입장을 표명하였다. 관광영향에 대한 지역주민의 지각은 연령, 학력, 직업과 관광의 관련 여부, 거주지, 거주기간 등의 사회경제적 특성에 따라 유의한 차이가 있었다.