• 건설관리
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• 제21권5호
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• pp.27-31
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• 2020

• 건설관리
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• 제21권4호
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• pp.44-48
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• 2020

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1999년도 추계공동학술대회 논문집:21세기지식경영과 정보기술
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• pp.381-409
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• 1999

고객상담센터 또는 Call Center(콜센터)는 기업조직상 고객과의 최일선 접점에 위치하여 고객만족 경영의 중추적인 역할인 대고객 communication이라는 막중한 임무를 담당함에도 불구하고, 우리나라학계 뿐만이 아니라, 미국의 학계에서도 연구가 빈약한 분야이기 때문에 연구의 필요성이 강력히 요청되는 분야이다. 2) 본 연구는 지금까지 고객의 요구에 대응하기 위하여 임기응변적으로 설계 및 운영하여 온 우리나라의 고객상담센터, 특히, 전화고객상담 센터(Call Center)의 효율향상을 위한 경영개선 노력을 위한 “리엔지니어링 전략”에 관한 탐색적 연구다. 연구방법으로서는 문헌(주로 미국) 및 미국의 call center 실태조사 자료를 우리나라의 자료와 비교하여 리엔지니어링의 대상을 탐색하는, 소위 선진지역과의 벤치마킹(benchmarking) 방법을 택하였다. 구체적으로, 본 연구는 콜센터의 효율적인 운영을 위한 주요 구성요소인 인적요소 및 기술적 요소 등을 연구한다. 본 연구는 콜센터 리엔지니어링분야의 문헌을 체계적으로 고찰하였으며 특히 미국의 콜센터와 직접적인(head-to-head) 비교를 처음 시도했다는 점에서 이 분야의 향후 연구에 공헌을 할 수 있다고 믿는다. 또한 이연구의 결과는 우리나라 콜센터 관련 기업실무자들이 리엔지니어링을 추진하는데 중요한 참고자료로 이용할 수 있으며 특히, 관련 software 및 hardware의 설계와 개발에 중요한 방향제시를 할 수 있으리라 기대한다.

• 시스템엔지니어링학술지
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• 제14권2호
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• pp.33-40
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• 2018

This paper is based on the interim result of ongoing research and development project to develop a software system which support procurement activities, namely PeMSS (Procurement Engineering Management Support System). PeMSS is a system that enables development requirements for each equipment and help designing equipment meeting the purchase requirements. Procurement at EPC (Engineering Procurement and Construction) and operational stage of a plant is an important area that determines the integrity and profitability of the plant. Procurement of unsuitable equipment due to selection of suppliers that do not meet or omit critical requirements in purchase specification can result in enormous cost increase due to such as delay in EPC project, unsatisfactory performance and reduced plant operation time. In spite of the importance of the procurement engineering, there is a lack of support system for systematic preparation of purchase specification, so development of the procurement specification is basically relying on the experience of the engineers in charge. Accordingly, it is needed to develop the PeMSS to help procurement engineers develop procurement specification based on systems engineering approach. This paper introduces the design of the PeMSS.

• Corrosion Science and Technology
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• 제23권3호
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• pp.246-254
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• 2024

Recently, coal-fired power plants are experiencing many problems that they have never experienced before due to an increase in flexible operation. In particular, a two-phase flow accelerated corrosion on water wall tubes in a boiler has not been detected overseas or domestically. There is no response plan to deal with such corrosion problem either. However, oxide film damage and tube material corrosion due to a two-phase flow accelerated corrosion are being discovered on water wall boiler tubes of domestic coal-fired power plants recently. If this situation is severe, it can cause enormous damage such as tube rupture. Therefore, in this paper, in order to prepare a response plan for a two-phase flow accelerated corrosion on water wall tubes in the future, differences between a two-phase flow accelerated corrosion and a single-phase flow accelerated corrosion were investigated and an example of discovery of a two-phase flow accelerated corrosion on water wall tubes was presented.

• 플랜트 저널
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• 제16권4호
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• pp.33-39
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• 2020

For several decades, productivity in construction industry has been regressed and it is inevitable to improve productivity for major EPC players. One of challenges to achieve this goal is automatically extracting information from imaged drawings. Although computer vision technique has been advanced rapidly, it is still a problem to detect pipe lines in a drawing. Earlier works for line detection have problems that detected line elements be broken into small pieces and accuracy of detection is not enough for engineers. Thus, we adopted Contour and Hough Transform algorithm and reinforced these to improve detection results. First, Contour algorithm is used with Ramer Douglas Peucker algorithm(RDP). Weakness of contour algorithm is that some blank spaces are occasionally found in the middle of lines and RDP covers them around 17%. Second, HEC Hough Transform algorithm, we propose on this paper, is improved version of Hough Transform. It adopted iteration of Hough Transform and merged detected lines by conventional Hough Transform based on Euclidean Distance. As a result, performance of Our proposed method improved by 30% than previous.

• 월간포장계
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• 통권313호
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• pp.68-73
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• 2019

• 한국분말재료학회지
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• 제27권6호
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• pp.484-489
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• 2020

In this study, acoustic and viscosity data are collected in real time during the ball milling process and analyzed for correlation. After fast Fourier transformation (FFT) of the acoustic data, changes in the signals are observed as a function of the milling time. To analyze this quantitatively, the frequency band is divided into 1 kHz ranges to obtain an integral value. The integrated values in the 2-3 kHz range of the frequency band decrease linearly, confirming that they have a high correlation with changes in viscosity. The experiment is repeated four times to ensure the reproducibility of the data. The results of this study show that it is possible to estimate changes in slurry properties, such as viscosity and particle size, during the ball milling process using an acoustic signal.

• 한국폐기물자원순환학회지
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• 제35권7호
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• pp.647-652
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• 2018

The emission of nitrogen oxides has a great environmental impact. It leads to Los Angeles type smog, and it recently has attracted attention as a source of ultrafine dust. The main sources of nitrogen oxides are internal combustion engines and industrial boilers. These emission sources are processes that are essential for human industrial activities, so the regulation of original use is impossible. Therefore, special control methods should be applied to reduce NOx emissions into the atmosphere. In this study, we investigated how the supply of ER and urea influences the removal of nitrogen oxides from SRF combustion boilers. Experimental results show that the removal efficiency of nitrogen oxides can be up to 80% under the conditions of ER 2.0 and a urea feed of 0.5 LPM.

• 시스템엔지니어링학술지
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• 제18권2호
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• pp.50-57
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• 2022

Along with the development of the 4^th Industrial Revolution technology, artificial intelligence technology is also being used in the field of systems engineering. This study analyzed the development status of artificial intelligence technology in the areas of systems engineering core processes such as stakeholder needs and requirements definition, system requirement analysis, and system architecture definition, and presented future technology development directions. In the definition of stakeholder needs and requirements, technology development is underway to compensate for the shortcomings of the existing requirement extraction methods. In the field of system requirement analysis, technology for automatically checking errors in individual requirements and technology for analyzing categories of requirements are being developed. In the field of system architecture definition, a technology for automatically generating architectures for each system sector based on requirements is being developed. In this study, these contents were summarized and future development directions were presented.