• 한국건축시공학회지
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• 제2권4호
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• pp.123-129
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• 2002

This research is aiming to specify the requirement of the investment such as initial cost, running cost earning rate to make effective investment considering the purpose of remodeling and economical value of store building enough to meet the initial purpose of remodeling. The review of earning rate for economical evaluation was performed by the on-site auditing on the structure and function of the building and applying the assessment simulation program, which is to find the possible business model to identify the requirement of building owner through case study. After the research, the following results are obtained. First, it is important that many aspects should be carefully analysis and the best method should be selected as characteristics of remodeling can tie defer each other in their implementations. Second, though the remodeling of exist buildings to promote the functions has been applied. no suitable assessment tool has bee developed for deriding the level of remodeling in the view of economical efficiency so far. Third, the economical benefit was evaluated by analysing annual earning rate which is applied by investment items and recovery period for the investment. More specific data base should be established to apply the suggested economic accession in business enough to forecast the future circumstances. More researches should be promoted on this area continuously as well as the integrated economic evaluation of remodeling on existing building.

• 디지털융복합연구
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• 제10권5호
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• pp.117-124
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• 2012

소비자들이 왜 위조품을 시용할까? 하는 의문에서 출발하였다. 사전조사를 통해 위조품 사용동기, 사용혜택 및 사용손실 척도를 제작한 후, 이러한 위조품사용 동기요인과 위조품사용 혜택요인 및 위조품사용 손실요인 각각에 대해 한중소비자간에 인식의 차이가 있는가를 확인하였다. 연구결과 첫째, 위조품 사용동기요인은 과시성, 경제성, 만족감, 실용성의 4가지로 나타났으며, 한중소비자의 인식차이를 알아본 결과 과시성, 경제성과 만족감 요인에서는 유의미한 차이가 나타났다. 둘째, 위조품 사용 혜택요인은 개인적 혜택과 경제적 혜택의 2가지로 나타났다. 2가지 혜택요인 모두에서 한중소비자간 유의미한 인식차이가 나타났으며, 한국소비자가 중국소비자에 비해 높은 긍정응답을 나타내 보였다. 셋째, 위조품사용 손실동기요인은 개인적손실, 품질손실, 물질적손실 및 사회적손실의 4가지 요인으로 나타났다. 개인적손실과 품질손실 및 물질적손실요인에 대해 한중소비자간 유의미한 인식차이가 나타났다. 이러한 연구결과는 한국소비자의 위조품사용행동에 대한 심층적 이해를 통해, 향후 위조품 사용을 줄이는 공공 캠페인에 활용할 수 있는 자료를 제공해 줄 것으로 기대한다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2003년도 가을 학술발표회 논문집
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• pp.132-135
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• 2003

Mechanical anchorage can substitute a standard hook. To enhance the workability and economical benefit of mechanical anchorage, the size of anchor plate should be optimized. In this paper, the pull-out behaviors such as strength, failure mode, and crack patterns of mechanically anchored reinforcement in concrete are investigated using nonlinear finite element analysis. The nonlinear finite element analysis results are consistent with the experimental results. These results show that the optimal anchor plates can be designed using the nonlinear finite element analysis.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 A
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• pp.65-67
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• 2003

This paper proposes the cost analysis on the energy efficient equipment when this equipment is participated in the demand-side bidding. Conventional demand-side bidding is exercised through load re-distribution. However if this load reduction is exercised by the use of high efficient equipment, its effect will be assumed to be more economical. This paper analyses this cost-benefit effect of high efficient equipment in the demand-side bidding.

• 한국가구학회:학술대회논문집
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• 한국가구학회 2006년도 춘계학술발표대회 논문집
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• pp.99-113
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• 2006

With the economy reform carried on deeply step by step, forestry industry is playing a more and more important role in the country's economy. How to use the limited resources to make the largest economical benefit is a key point for the industry development, however it is exciting that our forest resources is on sustainable development gradually and forestry output value is also increasing every year, input and export volume is enlarged fast, add to reasonable strategy, no doubt that China's forestry can achieve a prosperous future.

• 환경위생공학
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• 제8권2호
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• pp.65-84
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• 1993

This study reviewed the current status and problems of sewerage system in Korea and then proposed possible methods to correct the problems. Also, evaluation of future development in sewerage system is included. It can be summarized as follows : 1. Investment in sewerage system is relatively low . 0.23% of GNP, Considering that the investment portion is 0.35% in OECD and 0.63% in Japan, it should be increased further. 2. The reasons wily the investment in sewerage system is low can be ' (1) Low priority is given to the investment in sewerage system. Local government builds and operates its own wastewater treatment plant. Local government as well as residents prefer to invest their money in roadwork, housing and parks to in wastewater treatment facilities because of greater investment effects. (2) Besides capital investment, more maintenance cost is needed for sewerage system. Proper operation of wastewater treatment facilities requires a well-trained operator. Because of public conception that operation of wastewater treatment facility is a dirty job, it is difficult to find a well-trained operator. (3) It is difficult to estimate the effect of sewerage system (4) Cost required to build and maintain wastewater treatment facility should be paid by people, who benefit from the facility. People to benefit are sometimes different from people to pay. 3. Advanced treatment is necessary to protect the bay aura and raw water source as well as to prevent eutrophication of lakes and ponds. 4. Wastewater treatment facility were mainly build in big cities during the decade of 1980. Followings should be solved first to expand the facilities. (1) Rapid repair and construction of sewer. (2) Technical development of wastewater treatment . Prevention of efficient and economical wastewater . Development of efficient and economical wastewater treatment techniques . Development of high-efficiency treatment using bioreactor . Reuse of wastewater treatment plant effluent (3) Sludge treatment and disposal . Composting of sludge cakes . Development of techniques to reduce the volume of sludge cake : incineration and reuse of sludge ash and slag. (4) Utilization of wastewater treatment facilities . Construction of community parks or sports families(ie, on the tops of the covered aeration tanks and sedimention tanks) Construction of wastewater treatment facilities under ground and of parking facilities and community parks above ground. (5) Education of wastewater treatment personal.

• 에너지공학
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• 제19권4호
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• pp.246-250
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• 2010

12 리터급 경유엔진을 개조한 LNG 혼소엔진에 대해 출력, 연비 및 배출가스등의 성능을 평가하였으며 이를 바탕으로 LNG혼소 화물 자동차의 경제성을 분석하였다. 출력은 경유엔진에 비해 5% 정도 낮은 수준으로 평가되었으며 엔진효율은 경유의 경우 37.4%, LNG혼소의 경우 35.9%로 경유엔진의 경우가 다소 높게 나타났다. 배출가스는 탄화수소를 제외하고 PM, NOx, CO 및 $CO_2$는 LNG 혼소의 경우가 낮은 특성을 보였다. 경제성 비교를 위해 연료비용과 환경비용 관점에서 각각 분석하였으며 유가보조금 및 할인을고려할 경우에도 LNG 혼소 화물차의 경제성이 있는 것으로 분석되었다.

• 경영과학
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• 제26권3호
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• pp.185-204
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• 2009

Power bloggers have become one of the most important resources of blog service companies, and only those who attract and secure power bloggers will be able to have competitive edge and profitability in blog related businesses. This study examines the effects of technology acceptance factors and economical factors on the loyalty of power bloggers. The analysis results show that the usefulness, power of social influence and enjoyment positively affect the attitude and intention to continuous use. The relationship between the attitude and intention to continuous use is demonstrated as significant. The economical benefit exhibits weakly positive influence on the attitude to blogging, but not on the intention. This indicates that although many power bloggers receive economic benefits through their blogging activities, such economical benefits do not have big impact on their activities and the intention to use. The blog service providers may use the analysis results when developing new blog services. In particular, the usefulness, which is often considered as one of the most important factors in the success of the blogosphere, is found to have less impact than the enjoyment among power bioggers. This is because blog users, especially power bloggers, use the blog not for a specific purpose or for generating a special product; most of them use the blog to satisfy their own personal desires. When developing blog services, therefore, it is important to cater to the users' enjoyment and their psychological compensation. What is surprising is that the effect of the economical factor is not ad significant as one might have expected. This implies that the new blog services that provide profit sharing or advertising revenue sharing may not be as successful as one would have hoped for in maintaining the loyalty of power bloggers.

• 치위생과학회지
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• 제4권3호
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• pp.141-148
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• 2004

본 연구는 2004년 9월 13일부터 17일까지 전라남도 K시에 소재하는 4개의 대학에 재학중인 치과위생과 학생 1,2,3학년을 대상으로 자기기입식 설문지로 건강증진 행위와 자기효능감, 인지된 이익, 인지된 장애, 건강통제위, 자아존중감과 인구사회학적 요인을 조사하여 건강증진 행위에 영향을 미치는 요인을 조사하였으며 결과는 다음과 같다. 1. 대상자의 건강증진 행위는 2.60 이었고, 하부요인으로 자아실현 2.89, 건강책임 2.12, 운동 1.89, 영양 2.45, 대인관계 2.97, 스트레스관리 2.63 이었다. 자기효능감은 2.56, 인지된 이익문항은 3.45, 인지된 장애 문항은 2.32, 건강통제위는 3.04, 자아존중감은 2.81이었다. 2. 인구사회학적 특성과 건강증진 행위와의 관계에서는 학년, 종교, 경제수준, 가족질병경험, 본인의 질병경험, 인지된 건강상태(p<0.05)에 따라 유의한 차이가 존재하였고, 인지된 구강건강상태(p<0.001)에 따라 유의한 차이가 존재하였다. 하부영역중 자아실현은 학년, 경제수준, 인지된 건강상태(p<0.05)에 따라 유의한 차이가 있었고 종교, 인지된 구강건강상태(p<0.01)에서 유의한 차이를 보였다. 건강책임은 학년, 종교, 경제수준, BMI(p<0.05)에 따라 유의한 차이가 있었고, 본인의 질병경험, 인지된 구강건강상태(p<0.001)에 따라 유의한 차이가 있었다. 운동영역은 모의 교육정도, 가족 질병경험, 인지된 구강건강상태(p<0.05)에서 유의한 차이를 보였고, 영양영역은 경제수준, 인지된 구강건강상태(p<0.01)에서 유의한 차이를 보였으며, 인지된 건강상태(p<0.05)에서 유의한 차이를 보였다. 대인관계 영역은 인지된 구강건강상태(p<0.05)에서 만이 유의한 차이를 보였으며, 스트레스 관리 영역은 학년, 인지된 구강건강상태(p<0.05)에서 유의한 차이를 보였다. 3. 인구사회학적 특성과 인지-지각요인과의 관계에서는 자기 효능감은 경제수준, 인지된 건강상태(p<0.05)에 따라 유의한 차이를 보였고, 인지된 구강건강상태(p<0.01)에 따라 유의한 차이를 보였다. 인지된 유익성은 종교(p<0.05)에 따라 유의한 차이를 보였다. 인지된 장애는 경제수준, 인지된 구강건강상태(p<0.05)에 따라 유의한 차이를 보였고, 본인의 질병경험(p<0.01)에 따라 유의한 차이를 보였다. 건강통제위는 학년(p<0.05)에 따라 유의한 차이를 보였으며, 자아존중감은 인지된 구강건강상태(p<0.01)에 따라 유의한 차이를 보였다. 4. 건강증진행위와 자기효능감(r=0.376), 인지된 유익성 (r=0.188), 인지된 장애(r=-0.155), 건강통제위(r=0.064), 자아존중감(r=0.318), 인지된 건강(r=0.084), 인지된 구강 건강(r=0.165)은 모두 통계적으로 의미있는 상관이 존재하였다. 5. 건강증진 행위에 영향을 미치는 변수를 조사한 결과 가장 영향력 있는 변수는 자기효능감이었고, 자아존중감, 인지된 유익성, 인지된 구강건강 순서였으며, 이 네 변수를 투입하여 건강증진 행위 18.5%를 설명할 수 있었다. Pender의 건강증진모형을 이용하여 건강증진행위에 영향을 미치는 요인을 찾아 보았으나 설명력이 18.5%로 낮아 좀 더 많은 요인을 찾아내는 연구가 필요할 것으로 사료된다.

• 상하수도학회지
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• 제26권4호
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• pp.565-578
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• 2012

Integrated watershed sewage works program(IWSWP) is defined as implementing, by one of local governments or central government, sewage facilities planning, installation and management for a certain watershed in which criteria of water quality is established and two or more local governments are involved. It is shown that IWSWP is more efficient for the improvement of water quality of water body than conventional local sewage works program(CLSWP) and besides, economical benefits can be achieved by integration of facilities and M&O. In this research, case study for 8 watershed area were investigated to evaluate the difference of effect between IWSWP and CLSWP. The research shows that IWSWP has the money saving result of approximately 12 % by cost reduction for sewage works investment. B/C analysis result shows that B/C ratio of IWSWP was 1.749 and it is higher than B/C ratio of 1.439 for CLSWP. At the same time, the B/C sensitivity analysis is carried out for the rate of discount and the recreational use benefit.