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하희윤(Ha Hee-Yoon),이훈구(Lee Hoon-Ku),이윤선(Lee Yoon-Sun),김재준(Kim Jae-Jun) 대한건축학회 2007 大韓建築學會論文集 : 構造系 Vol.23 No.10
As the proportion of apartment housing in the domestic housing construction has grown recently, construction companies have focused on improving the quality of apartment housing in order to fit the rising needs of clients. However, in spite of these efforts of quality improvements, some defects have occurred repeatedly. The number of arguments following these failures is also increasing. According to growth of market construction the scale of a defect bond is growing larger and larger every year. This result indicates that defects have not been managed efficiently and systematically. This research presents the need for management of defect prevention by means of a defect bond. From the viewpoint of construction companies, the process of preventive actions is suggested in order to manage the defects both in design and construction stages of apartment housing project. Defect bond, namely cost, can be used as a measurement to find out an occurrence of a defect and estimate the effect of it.
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u-City 건설사업 시나리오에 따른 건설기업의 대응전략 수립에 관한 연구
권용호,하희윤,유병기,김재준,Kwon, Yong-Ho,Ha, Hee-Yoon,Yoo, Byeong-Gi,Kim, Jae-Jun 한국건설관리학회 2007 건설관리 : 한국건설관리학회 학회지 Vol.8 No.2
u-City건설사업은 최근 건설사업이 창출할 수 있는 새로운 부가가치 영역으로서, 건설기업이 신시장을 개척하기 위해 적극적으로 도전해야 될 분야로 주목받고 있다. 하지만, 건설기업의 입장에서는 u-City건설시장의 주도권을 IT업계에서 선점하고 있으며, 관련 연구 개발이 IT분야의 주도로 추진되고 있다는 점 때문에 u-City 건설시장에 선뜻 참여하지 못하고 있다. 따라서 본 연구에서는 u-City 건설사업과 관련하여 제기되고 있는 불확실성 요인들을 개요화하고 각 불확실성 변수별로 그 방향성을 분석하여 개연성 있는 시나리오를 도출하였고, 이를 기반으로 각각의 시나리오 상황에 대응하기 위한 건설기업의 전략적 방향을 제시하였다. 이를 통하여 건설기업의 시장분석 및 전략수립의 기초자료로 활용할 수 있게 하며 결과적으로 u-City 건설사업에의 건설기 업의 참여를 유도하고자 한다. The u-City construction project has become a hot topic In the construction market because it seems economic value-added field for construction firms. However, construction firms don't willingly participate in the u-City construction market because the future business environments for the u-City are very uncertain. Scenario planning is a very powerful method in managing this complex planning situation and is based on scenarios that help each enterprise appropriately adapt itself to its own business environments. Therefore it Is based on the main principles of systems thinking and multiple futures. For the purpose of dealing with such uncertainties, this paper attempts to develop the possible market scenarios of the u-City construction market through a scenario planning approach. From this perspective, we considered various aspects of the u-City construction such as market demands, technology development, policy level and management environment. After considering the relevant issues, we identified the main trends and key uncertainties. Then, we developed three coherent u-City construction market scenarios. On the basis of the proposed scenarios, the business strategies of potential construction firms in the u-City construction market has been formulated. Therefore, construction firms can use these scenarios as a basic data for market analysis and business strategy. Therefore, this paper is able to enhance the participation of construction firms in the u-City construction market.
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토양을 다루었을 때 손톱 밑으로 전이되는 토양의 전이와 지속성에 관한 연구
안수정,이예진,이한빛,하희윤,홍성욱 한국법과학회 2023 한국법과학회지 Vol.24 No.2
There are no research of how much soil transfer to hand and how long it persists during daily life, although soil is an important trace evidence. Therefore, the transfer and persistence characteristics of soil was investigated. As a result of observing 96 volunteers under the condition of not touching the soil within 1 hour, there was no case that more than grade-1 of soil was detected under the fingernails. 23 of them(24%) exhibited grade-1 of soil. From this point of view, it was found that even if a small amount of soil was attached, it could not be conclusively said that the suspect had recently performed soil-related activities. Also, if a person did not touch the soil, there are no grades higher than 2 were obtained. As a result of observing the transfer and persistence characteristics of soil under fingernails, we found that the soil quickly fell off at the initial stage and then slowly fell over time. In addition, even 120 minutes after touching the soil, 2 of 26 fingers(8%) had grade-3 of soil. So forensic investigators should not give up to collect the soil from suspects, even 120 minutes after arrest. We also found that the act of washing hands affected the amount of soil under the fingernails and the pace of soil persistence. Lastly, we found that the soil more slowly fell off under the fingernail than the fingertip because protection nature of the fingernail.
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