• 한국시스템다이내믹스연구
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• 제14권2호
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• pp.5-30
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• 2013

The concept of resilience in complex and adaptive socio-economic systems, has been a buzz word in international societies and academies related to policy makers for sustainable development since some years ago. This paper deals with an application of the resilient concept, which has been told since the last some decades in the field of ecology and applied system sciences, to social science especially in system dynamics. First the author introduces the concept of equilibrium stability and resilience in simple dynamic models, and moreover provides the behavioral characteristics and examples of system resilience in terms of system dynamics. The concept of resilience in structural perspectives are also discussed with the topics of panarchy and adaptive renewal cycles, etc.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 추계학술발표대회 논문집
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• pp.221-222
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• 2005

Nowadays, the consuming society, the quality of wideness is increasing as the economic life level increases. Modern's any of large department stores, playing a very important role in the middle of our consuming culture, is creating a new life culture and life patterns including producing a new consuming value, too. This is a plan for a renewal design of an inner shop at a department store for brand launching in Seoul, which was planed to escape from the brand's own cold color to show up the product's color using indirect illumination. It was also considered clients' path lines who may keep at a distance to come into an expensive brand's store by designing the whole area as a show room, so there a window display and a harmony with the products let the shop be well functionalized.

• 한국지역지리학회지
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• 제9권4호
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• pp.592-607
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• 2003

본 연구는 대구시 도심의 토지이용 변화와 재개발의 실태를 파악하고, 도심 공간의 쇠퇴가 토지이용에 어떻게 반영되고 있는지를 고찰하였다. 1980년대이래 우리나라의 대도시가 겪는 공통의 현상으로서 도심의 쇠퇴는 인구뿐만 아니라 경제활동에서도 영향을 미치고 있다. 이 같은 도심의 공동화 현상과 관련하여 도심에서 토지이용을 크게 용도지역과 실제 토지이용의 측면에서 중심상업지구와 주거지역에서 변화를 파악하였다. 그 결과 중심상업지역은 중심상점가에서 상업적인 기능이 강화되고, 업무적 기능은 정체 혹은 쇠퇴로 나타나는데 비해 주거용 토지이용은 다른 용도지역과 혼합되어 나타나지만 실제 개발은 필지 규모의 제약 때문에 도심 공간의 효율화에 저해가 되는 것으로 밝혀진다. 아울러 건축물에 기초한 토지이용 전환의 정도에 의해서 주거용도의 변화정도를 뒷받침하고 있다. 끝으로 도시재개발사업의 일환으로서 도심재개발 사업을 살펴보고, 현재의 문제점과 그 과정을 기술하였다.

• 상하수도학회지
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• 제27권3호
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• pp.395-404
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• 2013

The risk of pipe-bursting in multi-regional transmission mains consisting of 89 % of singled pipeline is so high that pipeline stabilization project is required such as renewal and replacement, pipe paralleling, emergency ties. Pipeline stabilization projects could be postponed at the step of initial decision-making because effect of this project is intangible benefit like activation of economic, improvement of welfare related to water. This study is to suggest quantified economical feasibility model for intangible benefit presumption to solve above problem. Cost reduction of emergency water supply, leakage, burst restore and energy efficiency improvement was altered and applied. As a result of economic analysis taking into account estimated benefit and cost under discount rate 5.5 %, service life 40 years, sufficient economic feasibility analyzed with B/C 2.45, NPV 317,700 million won, IRR 9.09 %.

• International Journal of Quality Innovation
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• 제3권2호
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• pp.46-56
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• 2002

The presence of imprecise measurement may seriously affect the efficiency of process control and production cost. A cost model is derived to determine the design parameters of the economic asymmetric $\bar{X}$ and S control charts including measurement errors. The effects of imprecise measurement on the performance of the economic asymmetric $\bar{X}$ and S control charts and production cost are examined for the case where the process mean and process standard deviation may change. Application of the proposed control charts is demonstrated through an example. Numerical examples illustrate the effects of imprecise measurement on the design parameters of the proposed control charts. It shows that the imprecision measurement may seriously affrct the ability of the proposed control charts to detect process disturbances quickly, change the sampling frequency, and increase the production cost compared to the control charts excluding measurement errors.

• World Technopolis Review
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• 제3권1호
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• pp.17-29
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• 2014

The importance of science and technology as the root of exceptional regional economic development has been extolled since the time of Schumpeter. Today emerging technologies are signaling the start of a new economic cycle where regions that are effective in technology translation will gain advantage. The will of policymakers to translate technology into regional job and wealth creation seems to be at an all-time high. Yet an improved process for translating technical development into regional prosperity has proved elusive. If there are no processes other than applying techniques that have worked in the past for other regions to a new region then there is cause for concern. Here the authors seek to add to this field of knowledge by applying elements of the varied cluster theories to provide a basis for policy for regional economic development by turning science and technology into commercial innovation. We provide a review of current cluster theories and discuss the positive and negative issues associated with each. We propose a model that allows interested professionals to utilize aspects of each cluster perspective geared to the realities of their specific area.

• 한국주거학회논문집
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• 제13권4호
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• pp.11-17
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• 2002

During the rapid economic growth, many buildings have been built unfaithfully. As a result, the buildings have finished their role in 10 years with dangerous structural elements and deteriorative facilities. This study planned to renovate an old independent house as an original and individual interior space which is its advantage. A house is not the place to eat and sleep, but multiple space with various functions, such as shelter, working, rest, and education. The purpose of this study was to make house environment useful and comfortable by understanding such a situation and by predicting future problems.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 춘계학술대회 논문집
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• pp.963-970
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• 2005

The dwell time and the passenger flow time are surveyed on the definition, affecting factors, several conclusions, and the forecasting models based on the regression. Also, the results of the field survey and analysis are presented for the congested subway stations in Seoul. It is claimed that the comprehensive research should be fulfilled on the passenger flow for the Korean case itself, since the results are quite different from the results from [1], Moreover, the result is a important factor for the economic assessment of construction or renewal of the rail line.

• 한국산학기술학회논문지
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• 제16권4호
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• pp.2906-2910
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• 2015

철도 선로선형은 한번 건설되면 변경하기가 매우 어렵다. 따라서 철도에서 선로선형의 변경은 일반적으로 큰 경제적비용을 수반한다. 본 연구에서는 기존 고속철도 및 일반철도의 속도향상을 위한 선형개량 시, 경제성을 고려한 평면선형의 허용개량범위 결정에 설계초기조건(교각)이 미치는 영향에 대해 분석하였다. 분석결과, 교각(Intersection Angle)이 클수록 직선부에 지장물이 있는 경우가 허용범위에 큰 영향을 미친다는 것을 알 수 있었다. 또한 교각이 클수록 최대 허용곡선반경은 작아지며, 허용완화곡선장은 길어짐을 알 수 있었다. 본 연구를 통해 교각의 크기 및 지장물 위치에 따른 개량허용범위를 쉽게 예상할 수 있으며, 속도향상 및 선로개선을 위한 선형 개량시 지장물을 고려한 경제적 설계가 가능할 것으로 예상된다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년 춘계학술발표대회 논문집
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• pp.175-180
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• 2009

According to an increasing demand of political support and development on renewable energy as a solution for the energy problem in Korea, the government has established a goal to raise renewable energy supply from 2.27% to 5% until 2011. Especially in the case of public building in which energy use is in great demand, it would bring a great advantage to develop and utilize the Photovoltaic System as an electric energy and Geothermal Heat Pump System as a thermal energy. On the occasion of Photovoltaic System, Photovoltaic module can be used as an architectural material so that it can reduce construction cost and when we use solar energy, it is possible to make building's own power supply. As for Geothermal Heat Pump System, It can be used infinitely as long as the solar energy exist and operation cost is cheap and yearly efficiency is stable. However, we need to make a plan to reduce early investment expanses for these two renewable energy systems and to expand a diffusion rate as we develop a competitive domestic technology level. So in this study, we are going to perform evaluation of economical efficiency according to the introduction of Photovoltaic System and Geothermal Heat Pump System in public buildings which will be built up inside of Daegu Sin-seo innovation city. As a first step, we will investigate present installation condition of these two renewable energy systems and based upon that, will seek efficient introduction program of renewal energy systems that can be applied in public buildings.