11 월의 강단설교 : 아동부 : 알곡과 가라지 ( 마 13 : 24 - 30 )

신윤석 장로회신학대학교 기독교교육연구원 2000 교육교회 Vol.- No.285

국내 공공임대주택의 자산관리 도입 방안

신윤석,조훈희,강경인 한국건축시공학회 2009 한국건축시공학회지 Vol.9 No.2

Recently, maintenance of public rental housing becomes a critical issue because its expenditure possesses the majority proportion of life cycle cost. The countries, such as USA and Singapore, have introduced the approaches for advanced property management, which are cost-effective in the maintenance management. However, as maintenance management system becomes advanced, risks associated with its application are also increased. Therefore, it is needed to assess the appropriate applicability of public rental housing maintenance management considering the constrains in domestic construction industry. The main objective of this study are to investigate international cases and systems and to propose strategic introduction, which satisfies the regulations and policies for domestic public rental housing. In order to evaluate the suitability of the investigated systems, practitioners' opinions were reviewed through the questionnaire surveys using analytic hierarchy process (AHP). The surveys indicate that advanced asset management was the suitable process for managing efficiently domestic public rental housing. Moreover, the results showed each weights of considerable criteria for assessing the effective application of maintenance management, and would contribute to further detailed and systematic management.

초고층 건축공사를 위한 건설 리프트 양중계획 시스템 개발

신윤석,Shin, Yoon-Seok 대한건축학회 2011 대한건축학회논문집 Vol.27 No.11

Construction lift planning is a key factor for successful project completion in tall building construction. However, decision maker of construction lift planning have trouble to find optimal plan under complex and dynamic environment on-site. Therefore, the purpose of this paper is to propose construction lift planning system for supporting planners to create an optimal plan based on the systematic and quantitative assessment for tall building construction. To verify the applicability of the proposed model, it was applied to an actual tall building construction project in Korea. In the result, the proposed model provides a more optimal construction lift plan that offered reduced cost than the existing plan in site, and reasonable durations and placements for each lift operation.

거푸집공사 안전관리를 위한 잠재적 위험 분석에 관한 연구

신윤석,Shin, Yoon-Seok 한국건축시공학회 2021 한국건축시공학회지 Vol.21 No.2

국내 건설 프로젝트가 점차 대형화 및 복잡화됨에 따라 국내건설산업은 타 제조업에 비해 산업재해가 더 많이 발생한다. 거푸집 공사는 건축공사, 특히 철근콘크리트조에서 전체 공사기간과 공사비 측면에서 모두 중요한 비중을 차지한다. 실제로 건축공사에서 발생하는 건설재해 중 거푸집공사에서 발생하는 건설재해의 비율이 매우 높다. 거푸집공사 중 발생 가능한 건설재해 예방을 위해서 많은 기존 연구들이 수행되었는데, 이 연구들 중 설문조사 분석을 이용한 연구들은 일반적으로 설문 응답의 평균값을 이용하여 분석을 수행하기 때문에 얼마나 많은 작업자와 관리자들이 거푸집공사에서 위험을 느끼는가 하는 잠재적인 위험에 대한 파악이 불가능하다. 따라서 본 연구에서는 거푸집공사 안전관리를 위해서 잠재적 위험을 분석할 수 있는 방법을 제안하였다. 제안된 방법의 적용성을 검증하기 위해서 실제 설문조사 및 분석을 통해 얻은 결과를 기존의 IPA기법의 결과와 비교하였다. 그 결과, 본 연구에서 제안한 잠재적 위험분석 방법은 기존의 IPA에서 확인할 수 없었던 잠재적인 위험이 있는 위험요인들을 확인할 수 있었다. 또한 현재 수행 중인 거푸집공사에서 어떠한 위험요인들이 시급히 조치가 필요한 지 파악할 수 있게 해주었다. 결과적으로 본 연구에서 제안한 잠재적 위험분석 방법은 거푸집공사에서 잠재적 위험이 있는 항목을 도출함으로서 안전관리자가 건설현장 안전관리 업무를 성공적으로 수행할 수 있도록 지원해줄 수 있을 것으로 기대된다. Due to the increase of size and complexity of construction project, the frequency of serious accidents in construction industry has been increased. Especially, the proportion of accidents in formwork of building construction site is very high, and many previous studies have been conducted to preventing them in the viewpoint of the diverse approaches. However, their effectiveness on accidents prevention was poor, and as a result, it is limited to consider the potential risks because many workers and managers tend not to be concerned with unsafe factors in formwork. Therefore, in this study, a realistic and proactive way for analyzing these potential risks was proposed in the manner of quantitatively assessing the potentials resulted from the unsafe factors in formwork. To verify the applicability of the proposed methodology, group survey was carried out, and the results were compared with those of the traditional importance-performance analysis(hereafter IPA) technique. Through the use of the proposed methodology, unsafe factors that were not found in the IPA but have potential risk were identified. Eventually, this study is expected to contribute to the proactive prevention of construction serious disaster accidents in formwork by enabling a more efficient management.

사례기반추론을 활용한 건설현장 안전사고 조기 경보 모델

신윤석,유위성 한국방재학회 2015 한국방재학회논문집 Vol.15 No.6

In these days, the accidents on construction site are continuously increasing in spite of the managerial efforts and financial investments. This trend encourage safety managers or decision makers to enhance existing approaches and to develop innovative and proactive management aids. In this study, we propose an early warning model, called the Early Warning Model (hereafter EWM), for the potential types and causes of an accident as a project is progressive, using Case-Based Reasoning technique. The EWM was tested with illustrative cases, and the results showed a few possible cases with high likelihood for a specific situation randomly selected in the construction field. It is expected that the EWM is useful for furnishing safety managers and field supervisors with warning signals during the construction and helpful for assisting them in responding preactively and minimizing the ripple effect of construction site accidents. 최근 5년간 국내 건설현장에서 발생하는 건설 안전사고는 다양한 노력과 투자에도 불구하고 점차 증가하고 있는 추세이다. 이는 건설현장 안전관리에 혁신적인 관리 및 예방 기법의 개발이 시급함을 의미한다. 따라서 본 연구에서는 데이터마이닝 기법 중 하나인 사례기반추론 기법을 이용하여 사전에 발생가능한 건설 안전사고 유형을 예측할 수 있는 안전사고 조기 경보 모델을 제안하였다. 실제 건설안전사고 사례 데이터를 이용하여 모델의 유효성을 검증해 본 결과, 임의로 선택된 테스트데이터에 대하여 매우 유사한 안전사고 유형을 조회하여 제시해주었다. 본 연구의 조기 경보 모델은 건설현장 안전관리자가 발생가능한 안전사고 유형을 예측할 수 있도록 지원하여 건설 안전사고 감소에 기여할 수 있을 것으로 기대된다.

An Unsafe Practice Analysis considering Potential Risk to Foreign Construction Laborers in Korea

신윤석 한국건축시공학회 2015 한국건축시공학회지 Vol.15 No.4

Recently, the number of accidents reported involving foreign laborers has risen, and the need to prevent accidentsat construction sites has become more urgent. It has been found that 90 percent of construction accidents are causedby unsafe work practices, and various studies have been conducted on these practices with the aim of preventingaccidents at construction sites. However, the tendency with previous studies was to average the results of surveyresponses, and as a result it is impossible to consider the potential risk of how many foreign laborers feel unsafe inrelation with the unsafe practices. Therefore, in this study, importance-performance analysis (IPA) was improved inorder to assess the potential risk of the unsafe practices of foreign laborers at construction sites in Korea. To verifythe applicability of the improved IPA, a survey was carried out, and then the results were compared with those of theIPA. Through the use of the improved IPA, unsafe practices that were not found in the previous IPA but havepotential risk were identified. The method proposed in this study is expected to contribute to the prevention ofconstruction accidents of foreign workers by enabling a more efficient management.

경기대학교 건축공학과 건설안전관리연구실

신윤석 한국건축시공학회 2021 건축시공 Vol.21 No.3

디지털펜 기반의 건설현장 작업일보시스템 개발

신윤석,김대원,김태용,김광희 한국건축시공학회 2016 한국건축시공학회지 Vol.16 No.2

The daily report includes the most detailed information and various daily planning and performance data recorded ata site, and includes work types, the number of workers, and the equipment and materials used. However, in the dailyreporting process, some information can be omitted or distorted or even made redundant due to there being severalsteps of manual input. For this reason, the daily report is utilized for a simple report rather than for an appropriatepurpose. Thus, to resolve the issues of the existing daily report system mentioned above, a daily report system usinga digital pen was developed and then applied to an actual construction site to verify its applicability. As a result, itwas found that 96.610% recognition accuracy of handwritten letters could be achieved. In addition, it was no longernecessary to enter the same information multiple times and no additional training or education for using a mobiledevice was needed. The digital pen-based daily report program developed in this study is expected to contribute to animprovement of information management efficiency and site document management work by addressing the problemsof the existing report system. 작업일보는 일일 단위로 계획과 실적이 기록되는 문서로 작업내용, 출력인원, 장비 및 자재 현황 등 다양한 정보를 포함한다. 하지만 작업일보가 여러 단계를 거쳐 수기작성되는 과정에서 정보의 누락 및 왜곡될 수 있고 업무의중복 문제가 발생하여 단순 보고에 이용되고 있다. 따라서본 연구에서는 기존의 작업일보시스템의 문제를 해결할수 있는 디지털펜 기반의 작업일보시스템을 개발하고 그적용성 평가를 위해서 실제 건설 현장에 적용해보았다. 그결과 높은 문자 인식 정확도(94.610%)를 보여주었다. 그리고 정보를 입력하는 추가 업무가 제거되고 휴대 및 이동이 편리하며 사용을 위한 별도의 교육이 필요 없는 장점이있었다. 본 연구에서 개발한 시스템은 현행 작업일보시스템의 문제를 해결하여 건설현장 문서업무 및 정보관리 효율 개선에 기여할 수 있을 것으로 기대된다.

12 월의 강단설교 : 아동부 : 어린이에게 주시는 새 생명 ( 눅 2 : 36 - 40 )

신윤석 장로회신학대학교 기독교교육연구원 2000 교육교회 Vol.- No.286

Production of B-doped reduced graphene oxide using wet-process in tetrahydrofuran

신윤석,박성진 한국탄소학회 2021 Carbon Letters Vol.31 No.5

Graphene-based materials show excellent properties in various applications because of their electrical properties, large surface areas, and high tolerance for chemical modifcation. The use of wet-process is a promising way for their mass production. Heteroatom doping is one of the common methods to improve their electrical, physical, and electrochemical properties. In this work, we develop a new route for the production B-doped graphene-based materials using low-temperature wet-process, which is the reaction between graphene oxide suspensions and a BH3 adduct in tetrahydrofuran under refux. Elemental mapping images show well-dispersed B atoms along the materials. Various spectroscopic characterizations confrm the reduction of the graphene oxide and incorporation of B atoms into the carbon network as high as ~2 at%. The materials showed electrocatalytic activity for oxygen reduction reactions.