건설실패정보를 활용한 건설 프로세스의 지속적 개선 모델의 개념적 틀에 관한 연구

전용석,박찬식,Jeon Yong-Seok,Park Chan-Sik 한국건설관리학회 2005 건설관리 : 한국건설관리학회 학회지 Vol.6 No.1

The construction failures can be decreased by continuously improving the construction process based upon the information of construction failures. Herein, the information of construction failures can be utilized as the key factor far identifying the ineffective process and providing the improved construction process that can prevent failures. The objective of this research is to suggest a model for improving construction process continuously by using the information of construction failures. An extended review and analysis of literatures related to the construction failure are performed to investigate the definition, type, cause, and lesson teamed of failure. This research also identifies that process modeling methodology and case-based reasoning are applicable to the construction process improvement, and then it suggests a framework of CIMCP(continuous improvement model of construction process based on the module of case-based reasoning such as case retrieval, case index, and case adaptation. 건설실패정보는 건설실패를 야기한 업무 프로세스를 파악하고, 건설실패를 예방할 수 있는 향상된 프로세스를 제공하는 핵심 요인이 될 수 있다. 본 연구에서는 건설실패정보를 활용하여, 건설실패의 재발을 예방할 수 있는 건설 프로세스의 지속적 개선 모델의 개념적 틀을 제시하였다. 문헌연구를 통해 건설실패의 정의, 유형, 원인 및 교훈 등의 건설실패정보에 대한 개념을 정립하였다. 또한 건설실패정보에 프로세스 재설계 방법론 및 사례기반추론기법을 적용하여 프로세스 개선에의 적용가능성을 확인하였고, 사례기반추론기법의 주요 모듈인 사례검색, 사례색인 및 사례적응을 이용한 건설 프로세스의 지속적 개선 모델의 개념적 틀을 제시하였다.

유연성 페로브스카이트 태양전지 연구동향

전용석,Jeon, Yong-Seok 한국전기전자재료학회 2015 전기전자재료 Vol.28 No.11

건설기업의 생존예측모형

전용석(Jeon Yong-Seok),박복례(Park Bok-Rae),박찬식(Park Chan-Sik) 대한건축학회 2002 大韓建築學會論文集 : 構造系 Vol.18 No.12

Under the current competitive business environment in the construction indusUy, the probability of the contractor's bankruptcy has been growing higher. The firm's management requires a quantitative predicting tool that could measure the degree of insolvency and survival time. This study proposes a survival predicting model for contractors, utilizing the survival analysis that is a statistical tool developed for the estimation of the patient's survival time in medicine. The survival analysis methodology is regraded as an alternative to overcome the shortcomings of the binary predicting model using regression analysis for the predicting the contractor's bankruptcy. The usefulness of the proposed model was validated through the comparison with the logistic regression model. The predicting performance of the each model shows that the logistic model appears to perlorm well in the firm's bankruptcy and the survival model does well in the firm's soundness.

미시적 관계망 구축으로서의 공공미술

전용석(Yong Seok, Jeon) 한국문화관광연구원 2005 문화정책논총 Vol.17 No.-

도시담론의 변화와 공공미술의 가능성

전용석(Yong-Seok Jeon),안인기(토론자) 현대미술사학회 2004 현대미술사연구 Vol.16 No.-

FlyingCity has been working on the issue of the redevelopment of the Cheonggye rivulet for two years. Cheonggycheon is a small stream running through downtown Seoul. It was once covered with asphalt and had an elevated highway above it. Now the city government demolished the highway and took away the asphalt to expose the rivulet, which was mostly used for sewage. People debate whether this project is merely discovering the natural water line or a sneaky redevelopment for capitalist profit, which will expel already marginalized social groups like street vendors and destroy the little workshops located there. By researching the status of these endangered social groups, FlyingCity discovered a unique way of living in the mechanical age-an issue that we tried to raise on various occasions. The title 'Drifting Producers' refers to the production system network in this area. There are strong relations between the workshops, and this network is very flexible. Not only are there these kind of front-rear production lines, but also there are horizontal networks, dividing the workload. Most of these horizontal lines cross over, which explains why such elaborate metal work is possible. Each shop is run in such a way that it can adjust itself to a new network, created by an unexpected order of small quantity and new design, while sustaining existing networks at the same time. The term 'Drifting Producers' is used to define the kind of hybrid production system in Cheonggyecheon. The production lines cannot be determined in an a-priori way - hence the term 'drift.' A chaotic but strong inter-dependency allows them to survive in the era of mass production. And by drifting, they can adapt to a post-Fordist economy. It allows them to take unexpected turns of direction, and merge in a creative way. According to our site research and interviews, the street vendors use similar principles of survival to those of the metal workshops: finding niche markets, appropriating existing production methods, adapting themselves to unexpected changes of situation. They drift. This observation is an empirical explanation coming from their experiences, but can also be seen from an economic point of view. Street vendors are creating money circulation mostly among the poor. They recycle waste items, invent new businesses like street fashion, and introduce new goods like mobile phones for a younger generation. That they are absorbing the unemployed in times of deflation is also important. The inter-dependency and informal economy of the site is hard to grasp, and so tends to be mythologized. We heard rumors that illegal gun parts or bayonets for local gangs were produced there. It's hard to say if those stories are true. What's evident is that such invisible but strong networks in Cheonggyecheon are sources of exaggerated rumors. People even talked about the possibility of making armored tanks! (Which is of course impossible because the making of that kind of final product takes a completely different production system.) What we have called a sense of faktura is characteristic of Cheonggeycheon. A sort of secular literalism can be widely found in this region, from peoples' way of producing, to their way of organizing space, to their ordinary lives. It sometimes represents the struggle for survival; it sometimes appears as a sneaky way of evading the authorities, like saying, "This is not an electric fan" in front of an electric fan that looks like a formless machine, or even like a mollusk. So we can describe the most important characteristic of Cheonggyecheon as the fact that nobody can know Cheonggyecheon completely. But the authorities never stopped to reorganize this space into a ledgible structure in the name of development, thus turning it into a manageable one. To bridge the gap between this weird reality of Cheonggyecheon and the common understanding of the region among people flyingCity did various activities : cognitive re-mappin

철도 민자역사 사업수행체계 개선방안

박찬식,전용석,Park Chan-Sik,Jeon Yong-Seok 한국건설관리학회 2004 건설관리 : 한국건설관리학회 학회지 Vol.5 No.2

최근 철도 민자역사 사업에도 민자유치에 대한 관심이 증가하고 있으나 체계적 사업관리방안의 미비로 인해 민자역사사업의 경쟁력 약화를 초래하고 있다. 본 연구에서는 이러한 문제점을 바탕으로 하여 철도 민자사업관리 활성화를 위한 개선방안을 제시하였다. 문헌 연구 및 전문가 면담조사를 통하여 국내 민자역사사업의 사업관리 및 수행의 문제점을 제도적인 부분과 업무상의 문제점으로 구분하여 $조사\cdot분석$하였다. 제도적인 부분에서는 민자사업의 수익성 저하와 사업자 선정방식이 도출되었고, 업무상의 문제점에서는 지자체 협의 및 인허가 행정 장기화, $사업 운영\cdot관리 미숙$, 타당성 분석의 미흡등이 파악되었다. 문헌고찰과 면담조사를 통해 나타난 문제점들을 근거로 하여, 사업관리의 효율화를 위한 사업수행체계 개선방안으로 투자비 회수 보장제도, SOC 민간투자사업과 동일한 제도적 지원, 사업추진의 전문성 극대화 방안, 사업주관자 선정방식 개선, 민자역사 협의기간 단축방안 등을 제시하였다. Recently, there are growing concerns on the introduction of private financing in railroad station construction project. But private-funded station project does not have the efficient delivery system. This study is focused on the recommended solutions about the private-funded station project management. Through the literature survey and interview, it is investigated and analyzed that project management has the problems. The problems are classified as 2 areas: law & regulations and job practice. The problems in law & regulations are a lowing on the profitability, and an unreasonable project team selection process. Job practice has problems such as delaying in authorization process, and inferior feasibility analysis. The study suggests several recommended solutions related to the problem areas. That are as follows: the efficient return of investment system, the project financing system, the professional project management, the benchmarking team operation, and the cut down on discussion period

건설실패정보 분류체계 구축에 관한 연구

박찬식,전용석,신영환,장내천,Park Chan-Sik,Jeon Yong-Seok,Shin Young-Hwan,Jang Nae-Chun 한국건설관리학회 2003 건설관리 : 한국건설관리학회 학회지 Vol.4 No.1

Although Construction Failure Information has been reported in literatures, reports of research, and etc., it Is difficult to utilize the information because the information classification does not exist. Therefore, this study investigated and analyzed literatures of domestic and abroad research Institutions and suggested the Construction Failure Information Classification(CFIC). The CFIC is composed of four classified items; facility general information, failure situation information, failure cause Information, and failure counterplan information. Each item is divided sub-items. Through CFIC, Construction Failure Information can be standardized and utilized for useful data to prevent recurrences of construction failure. 건설실패에 관련된 정보는 연구문헌, 사례집, 보고서 등에서 제공하고 있지만, 실패정보에 대한 체계적인 분류가 구축되어 있지 않아, 정보의 활용에 많은 문제점이 있다. 따라서 본 논문에서는 국내$\cdot$외의 건설실패연구 관련기관 및 문헌을 조사$\cdot$분석하여 건설실패정보 분류체계를 제안하였는데, 시설물 일반정보, 실패상황정보, 실패원인정보, 실패대책정보의 4개의 대분류로 구성되어 있다. 그리고 각각의 대분류항목은 중분류항목과 소분류항목으로 구성하였다. 본 연구에서 제시한 건설실패분류 체계는 실패사례의 정형화$\cdot$표준화를 통하여 건설산업 참여주체들이 실패정보를 공유함으로써 실패의 재발을 방지하는 유용한 자료로 활용될 수 있을 것이다.

CdTe계 태양전지에 응용되는 ZnTe 박막의 전기화학적 제조 및 Cu 도핑 연구

김동환,전용석,김강진,Kim, Dong-Hwan,Jeon, Yong-Seok,Kim, Gang-Jin 한국재료학회 1997 한국재료학회지 Vol.7 No.10

박막형 CdTe/CdS 태양전지의 배면전극(back contacts)물질로서 Cu도핑된 ZnTe 박막(ZnTe:Cu)을 전착법(electroplating)으로 제조하는 연구를 수행하였다. Sulfate계의 전해질 수용액에서 CdTe 기판과 투명전극으로 코팅된 유리(In$_{2}$O$_{3}$: Sn, ITO)기판 위에 ZnTe 박막을 코팅하는 방법으로써 potentiostat와 기판(cathode), Pt counter electrode, Ag/AgCI 표준전극으로 구성된 장치를 사용하여 pH=2.5-4, T=70-8$0^{\circ}C$, 0.02M $Zn^{2+}$ 1x$10^{-4}$M TeO$_{2}$, 0.2M $K_{2}$SO$_{4}$조건에서 -0.800 Vs~-0.975 V 범위의 전압(V$_{a}$ )에 걸쳐 실험하였다. ITO박막을 기판으로 사용하여 cyclic voltammogram을 작성한 결과 약 -0.50 V 에서 Te환원 peak이 나타났다. Auger electron spectroscopy (AES)로 조성분석한 결과 표면에서 Zn signal이 강하게 나왔고 시편의 두께에 따라 Zn의 signal감소하는 반면 Cd signal은 증가하는 것이 확인되었다. SEM 사진으로부터 ZnTe의 표면이 작은 입자 (0.2$\mu\textrm{m}$ 이하)로 구성되어 있으며 낮은 V$_{a}$ 에서는 입자가 작아지면서 조직이 치밀해짐이 관찰되었다. Optical transmission방법에 의하여 ITO기판위에 입혀진 박막의 밴드갭은 2.5 eV으로 측정되었다. 수용액중의 Cu$_{2+}$와 triethanolamine(TEA)은 산성용액에서 착물형성이 이루어지지 않았으며 1,10-phenanthroline과는 pH=2에서도 착물이 형성되었다.

염료감응 태양전지 연구개발 동향

박헌균,전용석,윤호경,강만구,오수영,Park, Heon-Gyun,Jeon, Yong-Seok,Yun, Ho-Gyeong,Gang, Man-Gu,O, Su-Yeong 한국전기전자재료학회 2008 전기전자재료 Vol.21 No.11

건설엔지니어링 기업의 경영성과측정모형 -H사의 사례를 중심으로-

박찬식,김현준,전용석,Park Chan-Sik,Kim Hyun-Jun,Jeon Yong-Seok 한국건설관리학회 2004 건설관리 : 한국건설관리학회 학회지 Vol.5 No.2

Under the current competitive business environment, the complexity of procurement method, and the lack of engineering capacity in the construction engineering industry, a construction engineering firms require the business strategy and its performance measurement system. This study suggests a performance measurement model that could follow 'H' construction engineering firm's vision and strategy. The model utilizes the concept of Balanced Scorecard. The study proposes the four main performance perspectives such as financial, growth, internal efficiency, and improvement & learning through the long-term strategy analysis, SWOT analysis, and interviews of the employees. Also the study develops the critical success factor and the key performance indicators. The usefulness of the performance measurement model is validated through the gap analysis such as alignment analysis and consensus analysis. 국내 엔지니어링 산업은 시장개방으로 인한 국제 경쟁력 확보, 선진국 대비 기술수준 낙후, 발주방식의 다양화 등으로 인하여 체계적인 사업전략의 수립 및 평가가 절실히 요구된다. 본 연구에서는 국내외 각 산업분야의 경영성과측정에 활용되고 있는 BSC를 건설엔지니어링 기업인 H사에 적용한 성과측정모형을 제시하였다. 성과측정모형은 기업의 중장기 발전계획, SWOT분석, 직원의식분석을 통하여 재무, 성장, 내부효율, 개선 및 학습의 4개의 관점으로 구성되며, 각각의 관점별로 핵심 성공요인과 주요성과지표를 도출하였다. 그리고 정렬분석과 일치분석을 통하여 성과측정모형의 유용성을 검증하였다.