• 한국의류학회지
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• 제30권1호
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• pp.106-114
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• 2006

This research aims to identify the recent changes in construction, design, and technical vocabularies between North and South Korea of the Korean woman's top(Jeogori), which is a main part of her traditional costume(Hanbok). After Korea War, Korea was divided into two countries(the division), and there was little communication between the two until 1972(the interexchange). Thus, this study will compare two time periods: 1953-1972 and 1972 to recent times. Hanbok construction books published in both Koreas are evaluated here to see what similarities and differences existed during these two periods. Women in the North continued to wear their traditional costume(renamed the Chosunot in the North) as daily clothing, but women in the South began saving the Hanbok only for parties and ceremonies. As the North Korean government controlled its peoples dress and continued to make changes, the North kept developing new technical vocabularies, but the South continued to use the same terms fur the Hanbok. From the end of the 1990s, the Chosunot had become more and more similar to the Hanbok in colors, shapes, and materials.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.47-48
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• 2018

The aim of the research is to suggest the compensating strength values depending on various managing periods of concrete based on the strength development model calculated with equivalent age method for OPC 100 % concrete. As a result, for 28 days of managing period, 6, and 3 MPa of compensating strength values were suggested when the temperatures were from 4 to 9℃, from 9 to 17℃, respectively. Additionally, for 42 days of managing period, 3MPa of compensating strength value was suggested when the temperature was from 4 to 10℃, and for 56 days of managing period, 3 MPa of compensating strength value was suggested when the temperature was from 4 to 5℃. Furthermore, for 28, 42, 56, and 91 days of managing periods, any compensating strength values were needed when the temperature were higher than 17, 10, 5, and 4℃, respectively.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.42-43
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• 2018

The research is to suggest the compensating strength values depending on various managing periods of concrete based on the strength development model calculated with equivalent age method for 20% of blast furnace slag replaced concrete. As a result, for 28 days of managing period, 9, 6, and 3MPa of compensating strength values were suggested when the temperatures were from 4 to 6℃, from 6 to 12℃, from 12 to 17℃, respectively. Additionally, for 42 days of managing period, 6 and 3MPa of compensating strength value was suggested when the temperature was from 4 to 7℃, from 7 to 12℃, and for 56 days of managing period, 3MPa of compensating strength value was suggested when the temperature was from 4 to 9℃. Furthermore, for 28, 42, 56, and 91 days of managing periods, any compensating strength values were needed when the temperature were higher than 17, 12, 9, and 4℃, respectively.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.81-82
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• 2022

Al and Zn are used to protect the steel structures from corrosion. In the present studies, 15Al-85Zn alloy wires has been used for the deposition of coating by arc thermal spray process. Moreover, this process of coating exhibited severe defects formation, therefore, this coating was post-treated with different concentrations i.e. 0.05, 0.1 and 0.5M sodium hexa meta phosphate (Na6[(PO3)6]: SHMP) to fill to defects of deposited coatings and assessed their corrosion resistance in 3.5 wt.% NaCl solution with exposure periods. After the treatment, the porosity of the coating reduced significantly by formation of composite oxide films onto the coating surface. Initially, 0.5 M SHMP treated coating exhibited highest in total impedance due to significant reduction of porosity but once the exposure periods are extended, the composite oxides are dissolved, thus, total impedance is decreased.

• 한국항만학회지
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• 제10권2호
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• pp.91-101
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• 1996

오늘날 도시 지역에서는 차량과 통행 수요의 증가로 교통 문제가 날로 심각해지고 있지만, 이러한 교통 문제를 단순히 교통 시설의 확충만으로 완전히 해결할 수는 없다. 왜냐하면, 교통 시설의 확충에는 한계가 있기 때문이다. 본 연구에서는 교통 체게 개선(Transportation System Management, TSM) 방안의 하나로 신호 교차로의 효율성을 층대시키기 위해 첨두시간대 중심으로 운영되는 도시지역내 3지 고정식 신호 교차로의 운영 체계를 서로 다른 4개의 시간대(오전 첨두시간대, 오전 비첨두시간대, 오후 비첨두시간대 그리고 오후 첨두시간대)로 분류하여 컴퓨터 시뮬레이션에 의해 비교 분석한 결과 다음과 같았다. i) 각 시간대별로 교차로에 집중하는 총통행량에는 뚜렷한 차이가 발견할 수 없었으나, 각 방향별 통행량에 있어서는 상당한 차이를 발견할 수 있었다. ii) 특히, 도심 지역과 부도심 지역에 관계없이 각 시간대별로 서로 다른 신호 운영 체계를 적용할 경우 약 53%정도의 평균 지체 시간과 약 51%정도의 연료 소모량의 감소함을 알 수 있었다. iii) 그러나, 첨두시간대의 통일 신호 주기를 서로 다른 시간대에 적용할 경우에는 도심 지역과 부도심 지역에 관계없이 평균 지체 시간과 연료 소모량이 오히려 각각 약 36%와 약 34%정도 증가함을 알 수 있었다. 이상의 결과를 바탕으로 도시지역내 고정식 신호 교차로에는 첨두시간대 중심의 동일 신호주기로 운영하는 것보다 오히려 각 시간대별로 다른 신호 운영 체계를 구축하는 것이 더 효율적이라는 사실을 알 수 있었다.

• 대한안전경영과학회지
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• 제19권1호
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• pp.53-62
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• 2017

Full embroidery industrial accidents in recent years has shown a declining trend. But disaster embroidery of domestic construction industry were more than 20,000 deaths per year is about 500 people. The government has introduced a construction site often changing the recruitment of new construction based on health and safety as an alternative to road safety education training yisuje of construction workers, daily work periods short. Certificate of Basic OSH Training in Constructions had also been evaluated as successful by reducing the accident rate problem. It is conducted in private educational institutions has occurred on the friction between workers and employers and training costs are difficult to approach workers in the education standards for such facilities due to the superintendent. Educational institutions are institutions that have been caused by excessive competition lowered levels of education. There is also a lack of evaluation that the training is limited to the basic safety knowledge. These details are brought formal safety education purposes only and is introducing the results of other self jyeotgi difficult to reap the proceeds to good effect. In this study, we propose a plan for improving operational problems and enemy status based on research data presented after the Certificate of Basic OSH Training in Construction.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.1-6
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• 2011

As large-scale building projects have recently increased for the residential, commercial and office facilities, construction costs for these projects have become a matter of great concern, due to their significant construction cost implications, as well as unpredictable market conditions and fluctuations in the rate of inflation during the projects' long-term construction periods. In particular, recent volatile fluctuations of construction material prices fueled such problems as cost forecasting. This research develops a time series model using the Box-Jenkins approach and material price time series data in Korea in order to forecast trends in the unit prices of required materials. Building information modeling (BIM) approaches are also used to analyze injection times of construction resources and to conduct quantity take-off so that total material prices can be forecast. To determine an optimal time series model for forecasting price trends, comparative analysis of predictability of tentative autoregressive integrated moving average (ARIMA) models is conducted. The proposed BIM-based time series forecasting model can help to deal with sudden changes in economic conditions by estimating material prices that correspond to resource injection times.

• 건축역사연구
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• 제32권5호
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• pp.59-68
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• 2023

Jogyeongdan is an altar built by the Korean Empire within the burial grounds of Sijomyo(始祖墓), the Jeonju Lee clan, as a part of their posthumous respecting project. This site adheres to strict rules and formalities that are comparable to those of the royal tombs of the Joseon Dynasty, with its altars and monument House demonstrating construction techniques that hold high value in architectural history. This study compares and analyzes construction-related records such as Uigwe, Statements, and Figure, along with their historical context. Through this effort, the study explores in detail the original form of Jogyeongdan at the time of its construction and subsequent transformations in later periods. Findings showed that the Figure was drawed by Chae Yongsin and was only a blueprint prior to the construction; it was modified during the actual construction process. A part of Jogyeongdan project was carried out by demolishing four government office buildings that were closed because of the Gabo Reform in order to secure wood and roof tiles, among other materials. Additionally, concluded the Jaesil was by relocated Deokryudang from Samryeyeokcham. Further, instances of distinctive terminology usage were found related to construction materials in the Jogyeongdan Uigwe, which were not used in another Uigwe. These terms were distinguished in detail according to the locations in which the materials were used.

• 한국콘텐츠학회논문지
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• 제18권7호
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• pp.388-400
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• 2018

소형주택은 2009년 완화된 주택법 이후 꾸준히 공급되어져 오고 있다. 이에 본 연구는 소형주택 시공 관련 전문가 집단을 대상으로 설문조사를 실시하여 문제점을 도출하여 개선방안을 제시하고자 하였다. 첫째, 저가수주는 불리한 계약의 주요 원인이며 수주실적관리를 위해 저가수주를 하고 있었다. 저가입찰 및 저가수주는 건설 업체 유지를 위해 계약하게 되고 결국 건축물 안전 환경까지 위협하게 되는 것이다. 또한 적절한 기간의 입찰 및 공사 기간이 주어져야 할 것으로 판단된다. 둘째, 시공 프로세스를 준수하지 못한 사례가 많아, 중소건설업체의 업무 표준화가 필요한 상황이며, 관련 내용을 인지하지 못한 실무자가 많아 정기적인 교육이 필요한 것으로 판단된다. 셋째, 현재 가장 필요한 정책 방향에 대해 저가입찰 지양과 부실업체 시장퇴출이 가장 높게 나타났다. 안전 환경을 위해 저가입찰과 부실업체에 대한 개선이 필요하다고 판단된다. 대부분 소형주택을 짓는 중소건설업체는 업무 여건이 열악하다. 따라서 업무에 대한 표준화와 저가수주 지양으로 소형주택의 안전 환경을 제고해야 할 것이다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.361-366
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• 2007

This study reflects on the subjects of tile papers published by Journal of Automation in Construction, which has focused on such fusion-technology research areas in civil engineering as robotics and automation and observed a growing number of papers and extensiveness of participation during the 2000-2006 periods. This paper provides a current perspective on technology-fusion research in civil engineering, as reflected in the journal of Automation in Construction. Journal of Automation in Construction (AIC) is intended to be of interest of industry personnel, government personnel and researcher in Information Technology (IT) and Automation research in civil engineering. This paper is intended to show a cross country comparison of technology-fusion research through analysis of papers. The research results show that there is a need to increase research collaboration between industry and academia, government and academia, and industry and government to advance the construction industry.