• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.686-693
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• 2022

Construction is a collaborative endeavor. The complexity in delivering construction projects successfully is impacted by the effective collaboration needs of a multitude of stakeholders throughout the project life-cycle. Technologies such as Building Information Modelling and relational project delivery approaches such as Alliancing and Integrated Project Delivery have developed to address this conundrum. However, with the onset of the pandemic, the digital economy has surged world-wide and advances in technology such as in the areas of machine learning (ML) and Artificial Intelligence (AI) have grown deep roots across specializations and domains to the point of matching its capabilities to the human mind. Several recent studies have both explored the role of AI in the construction process and highlighted its benefits. In contrast, literature in the organization studies field has highlighted the fear that tasks currently done by humans will be done by AI in future. Motivated by these insights and with the understanding that construction is a labour intensive sector where knowledge is both fragmented and predominantly tacit in nature, this paper explores the integration of AI in construction processes across project phases from planning, scheduling, execution and maintenance operations using literary evidence and experiential insights. The findings show that AI can complement human skills rather than provide a substitute for them. This preliminary study is expected to be a stepping stone for further research and implementation in practice.

• 한국건축시공학회지
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• 제12권6호
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• pp.648-663
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• 2012

With recent attempts to improve quality and productivity, the prefabrication manufacturing system has been occupying an increasing share of the construction area. To minimize site work, material is more frequently being produced and partially assembled at a plant, and then installed at a site. For this reason, the production process is being divided and the materials are being delivered to the site after passing through multiple plants. With these changes in the production process, the materials delivery plan is becoming an important management point. In particular, as road transportation using trucks has a 71 percent share of the domestic transportation market, selecting the proper transportation path is important when delivering materials and equipment to a site. But the management system at the project design phase to calculate the delivery cost by considering the production process of the pre-fab material and the $CO_2$ emission at the material delivery phase is currently lacking. This study suggests a process design model for assembly production of the pre-fab material and transportation logistics based on carbon emission. The suggested model can be helpful to optimize the location of the intermediate plant. It is expected to be utilized as a basic model at the project plan and design phase when subcontractors make decisions on items such as materials procurement, selecting the production method, and choosing the location of the assembly plant.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.928-934
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• 2009

Although the evolution and deployment of information technologies will undoubtedly play an important role in the current construction industry, many engineers are still unsure of the economic value of using these technologies. Especially for the planning of a construction project, a collaboration system to utilize the whole resources is a essential tool for the successful outcome. A detailed, authoritative, and readily accessible information model is needed to enable engineers to make cost-effective decisions among established and innovative plan alternatives. Most engineers rely on limited private experiences when they create solutions or design alternatives. Initial planning is crucial for the success of the construction project. Most construction projects are done through collaboration of engineers who have different specialized knowledge. Information technologies can dramatically enhance the performance of the collaboration. For the information delivery, we need a mediator between engineers. Object-based 3-D models are useful for the communication and decision assistance for the intelligent project design. In this paper, basic guidelines for the 3-D design according to different construction processes are suggested. Adequate interoperability of 3-D objects from any CAD system is essential for the collaboration. Basic architectures of geometry models and their information layer were established to enable interoperability for design checks, estimation and simulation. A typical international project for roadway was chosen for the pilot project. 3-D GIS model was created and bridge information models were created considering several requirements for planning and decision making of the project. From the pilot test, the integrated construction project planning using 3-D information models was discussed and several guidelines were suggested.

• Journal of Pharmaceutical Investigation
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• 제38권4호
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• pp.223-228
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• 2008

The purpose of this study was to investigate the feasibility of developing transdermal drug delivery system (TDDS) for fentanyl used for the management of chronic cancer pain. The effect of type of pressure sensitive adhesive on the permeation of fentanyl from polyisobutylene (PIB), silicone and acrylic adhesive was evaluated. Due to the good adhesive force and relatively steady flux for 3 days, both acrylic and PIB adhesives were chosen for further study. The permeation rate of fentanyl was the highest from acrylic adhesive with hydroxyl functional group. Permeation rate increased linearly as the concentration of fentanyl in acrylic adhesive was increased from 2.5% to 10%. In case of PIB adhesive, crystals of fentanyl were developed above 5% drug load. $Crovol^{(R)}$ A40, $Crovol^{(R)}$ PK40 and Plurol $oleique^{(R)}$ provided higher flux of fentanyl.

• 한국건설관리학회논문집
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• 제4권3호
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• pp.119-127
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• 2003

오늘날 프로젝트 수행방식 중 설계시공일괄방식은 전통적 수행방식의 대안으로 점차 선호되고 있다. 1995년 처음 도입된 설계시공일괄방식은 아직까지 많은 문제들을 발생시켜오고 있다 초기 선행연구보고서들은 여러 가지 방법으로 설계시공일괄방식 프로젝트 수행을 향상시키고자 노력해 왔으나, 아직까지는 그다지 큰 영향을 미치지 못하고 있다. 본 연구에서는 설계시공일괄방식 프로젝트 수행을 향상하기 위해 4단계에 걸쳐 설계시공일괄방식 성공모델을 제시하고자 한다. 첫째로 연구를 위한 적절한 모델링 방법을 찾고, 둘째로 설계시공일괄방식의 현황을 분석하여 현황모델을 만든다. 셋째로 현황모델과 기존연구들을 분석하여 문제점 모델을 만든다. 마지막으로 해외 설계시공일괄방식을 분석하여 성공요소와 환경을 찾아 성공적인 설계시공일괄방식의 모델을 구현한다.

• 한국건설관리학회논문집
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• 제8권1호
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• pp.66-77
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• 2007

2001년 4월 정부의 전력산업 구조개편으로 한국전력공사는 한국수력 원자력과 5개 화력발전사로 분할되었다. 이후 공기업 민영화를 위한 각 발전회사들 간의 경쟁체제에 따라 적극적인 수익창출을 위하여 다양한 발주방식 도입, 적용하고 있다. 하지만, 화력발전소 건설사업은 발주자의 사업목표나 프로젝트의 특성을 제대로 반영하지 못한 채 발주방식을 선정함으로써 프로젝트 참여자들을 만족시키지 못하고 있는 실정이다. 본 연구는 화력발전소 건설사업에서의 발주방식을 선정하기 위해서 고려해야 할 영향요인들을 조사하고 설문 및 면담조사를 통하여 적정한 발주방식의 선정기준을 개발함으로써 발주자의 사업목표에 맞는 발주방식을 선정할 수 있는 모형을 구축하는 것을 목적으로 한다. 향후 본 연구에서 제안한 발주방식 선정모형을 활용하면 주관적이고 경험적인 판단에 의존하여 발주방식을 결정했던 기존의 관행을 벗어나 발주자의 사업목표, 발주자의 특성 및 요구조건, 건설사업의 특성 등을 효과적으로 반영하여 화력발전소 건설사업의 적정한 발주방식을 선정할 수 있을 것으로 기대된다.

• 한국포장학회지
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• 제26권2호
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• pp.99-103
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• 2020

The volume of parcel delivery is steadily increasing with the rapid growth of the global online e-commerce market. However, a large amount of packaging materials used for these parcel delivery is finally causing environmental problems as waste. In this study, we have taken a pilot test on the returnable parcel delivery packaging & service, which is one of various ways to reduce the generation of the distribution packaging waste raised by e-commerce-based parcel delivery. For the purpose of this project, we made 300 boxes of returnable & foldable delivery packaging(415 mm × 280 mm × 160 mm) and have cooperated with e-commerce company(CJ ENM) & logistics company(LogisAll). Consequently, about 50% of the delivered packages was returned because of the lack of consumer's understanding on the returnable packaging system. We finally have suggested the policy strategy to get over problems derived from the experiment, like the retrieval rate and cost of the returnable packaging, economic efficiency and so on.

• 디지털산업정보학회논문지
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• 제6권3호
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• pp.221-230
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• 2010

Citizens' demand, which has been previously focused on welfare, is now expanding to include elements for higher quality of life such as employment, housing, culture, and sports. Accordingly, the government, with an aim of effectively delivering resident services that satisfy various demands, is committed to transforming the central government-oriented service system into the integrated service system based on public-private partnership. The government is also dedicated to expanding services to 8 areas including not only welfare but also healthcare, employment, housing, education, sports, culture, and tourism, which are directly related to everyday lives of residents. This project is designed to support such reforms in the citizen service delivery system in order to enhance quality of life of local residents. This study is to draw implications from analysis for implementing the citizen service integrated information system in order to reform the citizen service delivery system effectively through examinations and analyses of citizen services provided by the central government. Especially focus on public utility charges depreciation simplification citizen service. Its implications are expected to offer a real contribution for central and local Governments that want to increase the productivity of implementing eGovernment service.

• 한국건설관리학회논문집
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• 제17권5호
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• pp.22-34
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• 2016

현재 국내 공공건설사업의 발주제도는 입 낙찰제도와 뚜렷한 구분이 없이 혼용되고 있으며, 선정할 수 있는 기준 자체도 단순히 사업예산이나 추정금액에 의해 정해지고 있다. 발주방식은 본래 사업의 특성이나 유형, 목적 등 다양한 요인들의 특성을 적절히 반영하여 결정해야 함에도 불구하고, 주어진 예산이나 기간, 획일적인 법 규정으로 인해 탄력적으로 운영되지 못하고 있어, 이에 대한 근본적인 해결방안을 마련해야 할 필요성이 지속적으로 제기되고 있다. 이를 위해, 본 연구는 최적 발주방식을 선정할 수 있는 의사결정지원모델을 제안하였다. 이를 위해 문헌고찰과 설문 및 면담조사, 통계적 분석기법을 활용하여 영향요인을 발굴하고, 최종 발주방식 유형별 의사결정지원모델을 제안하여, 실무 적용타당성을 검증하였다. 그 결과 의사결정지원모델은 향후 발주방식을 선정하는데 기초자료로 유용하게 활용함으로써 기존 업무관행을 개선할 수 있을 것으로 기대한다.

• 대한간호
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• 제15권3호통권83호
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• pp.15-29
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• 1976