• Water for future
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• v.54 no.9
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• pp.132-136
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• 2021

2021년 하계방학 동안 농어촌연구원 국제융합수리시험센터에서 현장실습을 하며 경험했던 것, 배운 점, 느낀 점을 후기로 작성하였다. 이번 현장실습동안 진행한 활동들은 크게 수리실험 교육 및 장비조작 실습, 세미나발표 참관, 문헌조사, 안전교육 4가지로 구분된다. 현장실습을 하면서 느낀 점은 수리실험은 다양한 분야에서 활용된다는 것이었다. 수리실험을 통해 산사태를 예측하여 방재계획을 수립하고, 어도를 구축하여 생태계 보호에 기여할 수 있으며, 파력발전을 통해 에너지를 생산할 수 있다는 것을 알게 되었다. 이 때 다양한 환경문제가 발생할 수도 있는 데 향후 환경 계통에 취업을 했을 시 본 현장실습을 통해 얻은 경험이 매우 유용하게 활용 될 수 있을 것이라 기대된다.

• Journal of the Korean Geotechnical Society
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• v.26 no.3
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• pp.59-68
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• 2010

Systematic risk management is necessary in grand scaled urban construction because of the existence of complicated and various risk factors. Problems of obstructions, adjacent structures, safety, environment, traffic and geotechnical properties need to be solved because urban construction is progressed in limited space not as general earthwork. Therefore the establishment of special risk management system is necessary to manage not only geotechnical properties but also social and cultural uncertainties. This research presents the technique analysis by the current state of risk management technique. Risk factors were noticed and the importance of each factor was estimated through survey. The systemically categorized database was established. Risk extraction module, matrix and score module were developed based on the database. Expected construction budget and time distribution can be computed by Monte Carlo analysis of probabilities and influences. Construction budgets and time distributions of before and after response can be compared and analyzed 80 the risks are manageable for entire whole construction time. This system will be the foundation of standardization and integration. Procurement, efficiency improvement, effective time and resource management are available through integrated management technique development and application. Conclusively decrease in cost and time is expected by systemization of project management.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.785-789
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• 2008

As people pays more attention to remodeling as a method to effectively improve, maintain, and manage building properties, it is important to ensure the economic feasibility of remodeling compared to reconstruction, instead of focusing on systematic regulations. In order to identify core technologies, the study set criteria to survey cost of a remodeling project by analyzing current status of remodeling projects. Based on the criteria, the study calculated average construction cost for five remodeling projects that were conducted recently, compared the cost with new construction projects, and examined major level works that are essential in a remodeling project. Based on the major level works, the study conducted interviews with construction experts to draw core technologies in design, structure and construction of a remodeling project.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.63-73
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• 2015

Many domestic companies have connections with social enterprise as one of the corporate social responsibility. However, majority of those connections are typically occasional, one-time donation. Therefore, current study focused on how to develop/nurture sustainable business model of social economy, which utilizes the companies' internal resources enabling communities to actually feel the impact. Literature survey for 25 reports and 123 business models for the past 5 years was performed and analyzed in terms of social-economy business models and job creation. It was found that the success factors of the job creation are: internal resources analysis, business model development, and support activities for execution (probono). Based upon the findings, DIDOV (Define-Identify-Design-Optimize-Verify) methodology was used to understand the effects of government policies and technological environment. As an exemplary case, Incheon International airport Corporation was selected and investigated for internal resources and related business models. Finally, 9 social-economy business models are derived for Incheon International airport Corporation in relation to the airport services offered.

• Journal of Korea Port Economic Association
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• v.28 no.3
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• pp.1-25
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• 2012

In order to solve the current problems and inefficiencies within the Port Authorities (PA) in Korea, this study introduces the concept of the integration of PA and analyses the awareness of intention of integration. This study is based on analysing the surveys conducted by the members of PA. This research shows that there were different perceptions on the autonomy, business strategy intension, information sharing efficiency, competition, environment and technique change, capital finance, easy finance risk, curtailment of expenditure, personnel management efficiency in PA. Results of the study indicate that YGPA has more clear understanding on the awareness of integration of PA than other PAs. The results of this research will serve as a basic literature for further studies on the integration of PA in Korea. Moreover, the problems that have been identified and analysed in this study will contribute to establishing the strategy for further development of PA in Korea.

• LP가스
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• v.22 no.5
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• pp.34-37
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• 2010

국가 에너지원의 다원화와 환경공해 저감은 정부의 저탄소 녹색성장 정책과 에너지 안보를 위해 달성해야만 하는 필수불가결한 과제로 자리 매김한지 오래이다. 또한, 화석연료의 환경문제 유발과 석유자원의 고갈위기 등으로 인해 이를 대체할 수 있는 신재생에너지 개발에 대한 관심이 고조되고 있으며 이러한 과제를 해결하기 위한 친환경 연료로써 DME(Dimethyl ether)에 대한 관심이 날로 증가하고 있는 추세이다. 특히 높은 세탄가를 지니고 물성이 LPG와 유사하여 디젤차량 및 LPG 대체 연료, 연료전지 등의 다양한 용도로 사용할 수 있고 수송 저장 수단, 인프라 구축 등의 장애가 적다는 장점이 있으며, LPG와 물리적 특성이 비슷해 기존 LPG 인프라를 개조하지 않고도 LPG와 혼합해 난방 및 취사뿐 아니라 차량 연료용으로도 시범사업이 활발히 추진되고 있는 상황이다. 그밖에도 액화상태로 저장 운송 등의 취급이 용이하다는 장점이 있다. 한국가스공사의 경제성 분석 결과, 본격 보급시 LPG대비 20~30% 저렴하게 공급가능하다고 판단되어짐에 따라 LPG사용자 부담을 완화할 수 있는 기대를 가지게 한다. 이에 우리협회는 지경부 한국가스공사등과 함께 프로판에 DME가 20%의 혼합된 DME혼합연료 소비자에게 보급하는 시범사업을 전개하고 있으며 현재까지 진행된 내용과 향후 계획등을 소개함으로써 DME에 대한 이해를 높이고자 한다.

• Korean Journal of Construction Engineering and Management
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• v.9 no.6
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• pp.204-215
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• 2008

Demolition work is a precedence activity that is performed earlier than other remodeling activities. And demolition work is one of the critical path activities. So, demolition work is needed for systematic plan and management. However, contractors of the remodeling project established a rough plan and did not consider recycling wastes, safety of workers and structural stable of building. To improve this problem, a eco-friend process model of remodeling project is needed to be established. The process model is composed of five phases; 1) survey and analysis of general condition of demolition work, 2) prepare documents of demolition work 3) establishing demolition work plan, 4) demolition and inspection, 5) post-demolition management. Especially, demolition documents are based on establishing WBS, selecting the equipment and method, waste management and structure reinforcement. A process model of eco-friend demolition work is developed by using IDEF0 method.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.85-92
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• 2008

Demolition work is a precedence activity that is performed earlier than other remodeling activities. And demolition work is one of the critical path activities. So, demolition work is needed for systematic plan and management. However, contractors of the remodeling project established a rough plan and did not consider recycling wastes, safety of workers and structural stable of building. To improve this problem, a eco-friend process model of remodeling project is needed to be established. The process model is composed of five phases; 1) survey and analysis of general condition of demolition work, 2) prepare documents of demolition work 3) establishing demolition work plan, 4) demolition and inspection, 5) post-demolition management. Especially, demolition documents are based on establishing WBS, selecting the equipment and method, waste management and structure reinforcement. A process model of eco-friend demolition work is developed by using IDEF0 method.

• Journal of Soil and Groundwater Environment
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• v.27 no.2
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• pp.24-35
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• 2022

This study was conducted to estimate groundwater demand and supply for agricultural activities in a frequent-drought area that requires implementation of optimal distribution plan utilizing the well-network system (WNS). The WNS has been considered as a viable strategic way of supplying groundwater to farmlands by connecting groundwater wells physically or virtually. The study area heavily relied on groundwater resources for irrigation up to 53% due to a lack of surface water resources. Two kinds of methods, HOMWRS software and FAO approach, were used for estimating irrigation water requirements for paddy and upland fields, respectively. During the latest 10 years (2010~2019), the water requirements was estimated to be 1,106 m³/day. The requirements notably increased to 1,121~4,004 m³/day during active farming season (May to September), which exceeded the total yield capacity of pre-existing groundwater wells (2,356 m³/day) in the area. Detailed and definite determination for groundwater demand and supply helped to determine optimal scale parameters of WNS. The WNS has achieved more balanced distribution of groundwater resources for irrigation over the study area.

• Journal of Korean Society of Rural Planning
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• v.25 no.3
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• pp.19-27
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• 2019

The purpose of this study was to determine whether public services in rural areas performed the functions of public interest value that benefited all residents of rural areas. Therefore, the results were derived through spatial distribution and population characteristics analysis at the level of basic living service facilities. As a result, the status of spatial distribution in the Favorable and Vulnerable areas of rural villages and the status of population distribution in the vulnerable areas was analyzed for retail, child care and medical facilities. In the case of retail facilities, it was found that more than 80.0% of the country's farming villages were distributed in the favorable areas that could be reached within 15 minutes. In the case of child care facilities, 91.5% of the total number of favorable areas could be reached within 15 minutes, and the distribution of child care facilities nationwide was deemed proper. In the case of medical facilities, 90.8% or more villages could be reached within 15 minutes of travel time as a lawmaker, and in the case of hospitals and emergency medical services, 92.7% of hospitals and 68.2% of emergency medical services were analyzed as favorable areas. Through these results, the government intends to establish objective spatial data in rural areas to provide basic information on policy directions and contribute to planning.