• 한국경영과학회지
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• 제41권2호
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• pp.17-33
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• 2016

Clustering is one of the leading methods to analyze big data and is used in many different fields. This study deals with Clustering Validity Index (CVI) to verify the effectiveness of clustering results. We compare the performance of CVIs with business applications of various field. In this study, the used CVIs for comparing performance are DU, CH, DB, SVDU, SVCH, and SVDB. The first three CVIs are well-known ones in the existing research and the last three CVIs are based on support vector data description. It has been verified with outstanding performance and qualified as the application ability of CVIs based on support vector data description.

• 지식경영연구
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• 제13권4호
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• pp.13-29
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• 2012

Although the role of information systems (IS) on environmental sustainability much attention, the coordination between green practices and environmental management information systems (EMIS) in a firm remains unexplored area in environmental management and IS disciplines. This study elaborated the antecedents of the coordination between green practices and EMIS and then examines the links among them. Also, this study investigated the links from the coordination between green practices and EMIS to firm's environmental performance. The results showed that both attitudes of managers who are responsible for a firm's green practices and their support had direct effects on the coordination between green practices and EMIS. Also, consistent with environmental management literature, the study provides a better understanding of the relationship between the coordination between green practices and EMIS and environmental performance.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.200-204
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• 2015

This paper presents 10 input measures influencing project outcomes. Construction Industry Institute (CII), a consortium of more than 130 project owner and contractor companies, has collected project-level data for over 20 years. Recently, CII has developed a new system measuring project-level performance and factors presumably influencing project performance. The system, called 10-10, collects data for 10 input and 10 output measures for capital projects. The input measures include planning, organizing, leading, controlling, design efficiency, human resources, quality, sustainability, supply chain, and safety. This paper provides theoretical background for these measures. Although the input measures have been known to impact on project outcomes such as cost and schedule, there has been no study quantitatively evaluating how they are operated in the construction industry. This study contributes to revealing the current status of their uses, which will be helpful in establishing strategies improving construction project performance.

• 국제지역연구
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• 제14권3호
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• pp.205-219
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• 2010

지속가능성 (Sustainability) 또는 지속가능발전 (Sustainable development)에 대한 연구는 최근 G-20정상회의를 통하여 세계적인 중요의제로 부상하고 있다. 특히 중국 및 신흥국들의 급속한 경제발전과 이에 따른 원자재 부족 및 환경악화로 인한 문제가 단순한 협의안건에서 벗어나 실질적인 생존의 조건으로 부상하고 있다. 이와 같은 시각에서 특히 강조되는 것은 환경관련의제들이 외부비경제효과를 동반하는 속성상 특정국가나 기업만의 문제가 아닌 인류 사회 전체의 문제이며 이를 위해서는 지속가능성에 대한 엄정한 타당성이 검증되어야 한다는 점이다. 본 연구는 이와 같은 시각에서 경제발전과 환경보호라는 외견상 상호 갈등의 소지가 충분한 정책목표상의 균형과 조화를 위한 타당성을 모색하고 이에 대한 시사점을 도출하기 위한 목적으로 한국과 중국의 지속가능 발전모형을 유도하고 이를 실증분석하고자 한다. 본 실증분석 결과에서 나타난 점은 무엇보다 기존의 상식적인 선행연구와는 다르게 경제성장이 환경보호에도 긍정적으로 작용한다는 사실이며, 이를 통해 환경의 외부비경제적 특성에 대한 적절한 보상체계와 정부의 정책적 공조체계가 무엇보다 절실함을 지적하고 있다.

• Journal of Korea Trade
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• 제27권3호
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• pp.87-102
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• 2023

Purpose - Although the importance and necessity of "sustainable supply chain management (SCM)" is emphasized, it is often not realized due to conflicting results, the long time required, and large-scale changes brought about by sustainability. This study used the innovation resistance model to confirm the influence of sustainable SCM innovation resistance factors and dynamic capabilities on adoption intentions. This approach made it possible to understand the factors that hinder adoption of sustainability practices and to identify the relationships among influencing factors. It should also help to establish effective policies or strategies. Design/methodology - Through a literature review, the characteristics of sustainable SCM were classified into relative advantage, compatibility, perceived risk, and complexity. The effects of these innovation characteristics on innovation resistance in sustainable SCM and the effects of innovation resistance on adoption intentions were confirmed. In addition, the effects of SCM capabilities on innovation resistance and adoption intentions were analyzed, and the mediating effect of innovation resistance was analyzed. Findings - Compatibility, perceived risk, and flexibility had significant effects on innovation resistance. In turn, innovation resistance had a significant effect on adoption intention, and flexibility had a significant effect on intention to adopt. A partial mediating effect of resistance to innovation was confirmed. Originality/value - Although many previous studies have acknowledged trade-offs with sustainability, most sustainable SCM studies dealt with the correlations among positive drivers of adoption, practices, and performance. This study confirmed the process of accepting sustainable SCM innovation in a single model and is expected to serve as a cornerstone for future sustainable SCM adoption studies. In addition, our findings should help establish effective policies or strategies to activate SSCM adoption by identifying the factors that hinder the adoption of sustainable SCM.

• Architectural research
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• 제14권1호
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• pp.35-44
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• 2012

Build-Transfer-Lease (BTL) was introduced to the domestic construction market in 2005. Now, seven years later, the BTL model is most active for educational facilities. In 2011, 93 educational facility projects entered the maintenance stage. Considering the characteristics of today's BTL projects for educational facilities, the main issues are the initial performance and maintenance of educational facilities and the service-providing status for the 20-year operational management period, in relation to providing safety and convenience to students, the facility users. Seeking a solution, local education offices and departments in charge of BTL under the Ministry of Education, Science, and Technology have been exploring various methods of evaluating operational maintenance performance from various perspectives. For educational facility BTL projects, however, the appropriateness of initial operation performance evaluation, rather than considering the 20-year operational management period, is controversial in regards to sustainability. On this account, performance evaluation items in four areas-operational maintenance evaluation, facility performance status evaluation, maintenance subject evaluation, and sustainable change response evaluation-should be extracted. An indicator of facility performance evaluation is presented in this study through an AHP survey targeting experts, as part of establishing an operation performance evaluation system for educational facility BTL projects.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.241-242
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• 2023

This paper discusses an innovative acoustic membrane developed by doAZ Co., Ltd., offering enhanced noise barrier and dust control for urban construction and demolition, surpassing the performance of traditional non-woven fabrics. The membrane is made from recyclable bubble sheets and designed to be seamlessly integrated into single and double-row scaffolding systems, ensuring broader applicability and sustainability.

• 한국신뢰성학회지:신뢰성응용연구
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• 제15권4호
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• pp.282-288
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• 2015

Purpose : The purpose of this study is to compare the RAM (reliability, availability and maintainability) value in the acquisition phase with operational period for air weapon systems. The objective is to determine if the value of RAM is sufficient in the field, and look for any difference from the target value to some extent. Methods : For a case study, the ${\bigcirc}{\bigcirc}$ training aircraft is selected. Data from the two acquisition sources are utilized. One is the operational data in domestic aircraft through research and development, and the other is the data from imported aircraft. The two different sources were collected independently and distinctly. Results : According to the analysis, the domestic aircraft shows high deviation in RAM value compare to the imported systems. This is due to the effort of continuous reliability improvement. In the aspect of maintainability, the result shows a slight deviation, and the availability meets the requirement. Conclusion : The results of this study can be used in finding a way that can be effectively applied to the sustainability in the weapon system. If the RAM performance is significantly lower than the target value, then it is necessary to improve the design activities so that they can achieve the RAM target value.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.217-222
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• 2009

This study is lately stand on the basis of the importance for global warming and environment and accept changes of the paradigm of the 21st century. also it is to start architecturial access that suggest to solutions about environment, energy and health problems in high-rise residential architecture that lately the importance for global warming and environment. Spacially since 1990, high-rise residential architecture has developed into increase rapidly, and nowdays, this has become one of the new residence type. but this have diverse problems. For this reason, this building faced neccessary to improve living space and obtain to eco-friendiness and sustainability. Therefore, this study is focused to environment-friendly architectural certification in Korea and other countries, aims to suggest planning and technical elements from this system. Through 11 cases of high-rise residential architecture certified sustainable certification system, this study drew out tendency and charateristics of main strategy elements. These analysis will express informations of current level and also suggest to direction for improvement in quality of high-rise residence.

• 한국정밀공학회지
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• 제26권3호
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• pp.73-80
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• 2009

In accordance with the trend for high-speed multi-axes, and the increasing technical sophistication of machine tools, thermal deformation has become an important factor in the accuracy of machine tools. It was analyzed that thermal deformation error accounts for about 70% of all errors made with machine tools. For precise temperature control, both cooling and heating should be implemented. A hot gas bypass type cooling cycle method has a simplified structure and temperature control accuracy to with in ${\pm}0.1^{\circ}C$. In this study, the performances of oil cooler system, including temperature controllability according to hot gas floe and preset temperature sustainability according to temperature load, were tested. It is expected that this study will contribute to the development and performances of oil cooler system, which could minimize thermal errors and improve the quality of precision machine tools.