• Title/Summary/Keyword: Model-based development process

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Design and Simulation of a Monorail Network for the Inter-terminal Transport

  • Truong, Ngoc Cuong;Kim, Hwan-Seong;Kim, In-Yong;Nguyen, Duy Anh;Bao, Long Le Ngoc
    • Journal of Navigation and Port Research
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    • v.44 no.5
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    • pp.382-391
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    • 2020
  • In line with the trend of global transport volume which has increased rapidly over the years, internal transportation in seaports is always conducted with high frequency. Thus, there is always much potential for traffic jams as well as high transportation costs and emissions. Many efforts have been initiated to streamline the inter-terminal container transport (ITT) through the development of automated vehicles and equipment as well as using private transport facilities to overcome these limitations. The purpose of this paper to develop a framework to design, analyze, and validate the efficiency of a new ITT system in a port area based on the monorail network and automatic vehicles. First, the number of shuttles and loaders was determined depending on the transport demand scenario. Next, a simulation model was applied to evaluate the system performance as well as gain more insight into the working process of the ITT system. Finally, by setting goals for the performance indicators, the results showed that the system was highly efficient with 100% of the containers delivered to their destination on time. Besides, a series of other performance tracking was provided to provide insight into the system's capabilities.

A Study of Pace Strategy & Correlation of Product Liability Management Activity, Enterprise Value (제조물책임(製造物責任) 관리활동(管理活勳)과 기업가치(企業價値)간의 상관관계 및 대응전략(對應戰略) 연구)

  • Min, Dong-Seong;Chang, Seog-Ju;Park, Roh-Gook
    • 한국벤처창업학회:학술대회논문집
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    • 2008.11a
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    • pp.285-334
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    • 2008
  • The manager of manufacturing industry just not to have known to do related to the law of Product Liability that was put into operation in July 2002. The law of PL is a public law about defective product, which was established in order to compensate consumer's damages of property and body caused by product, to make sound society by the safety products and to take international competitiveness. The economic effects by the law of Product Liability are the increase of consumers relief production cost by the lawsuits. Product liability as a process has developed significantly in the United Kingdom and the United States of America. The rapid introduction of product liability has recently been a prevalent phenomenon, as global changes arising from rapid development in science and the economy have resulted in a highly interconnected world economy. This thesis was established, based on current literature and business consulting cases in the position of companies, and is one of the operating subjects in a system for legal responsibility in manufactured products. However, there are limitations in the fact that research theories are only able to present a theoretical model and directions. In this context, managers and personnel of multiple companies cannot adequately respond to the recently enforced Product Liability Act. The major findings are summarized as Product Liability Management Activity are positively Correlation of Enterprise Value.

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A Study of Friction in Microfoming Using Ring Compression Tests and Finite Element Analysis (링 압축시험과 유한요소해석을 이용한 미세성형 공정에서의 마찰특성에 관한 연구)

  • Kim, Hong-Seok;Kim, Geung-Rok
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.34 no.10
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    • pp.1471-1478
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    • 2010
  • Microforming processes have recently attracted considerable attention from industry and academia since they enable the production of microscale parts using various materials at a high production rate, minimize material loss, and provide parts with excellent mechanical properties. However, for successful development and applications of the microforming process it is critical to take the tribological size effect into consideration because previous studies have shown that traditional friction models for macroscale forming generate significantly erroneous results in the case of microforming. In this paper, we performed scaled ring compression experiments to investigate the tribological size effect of aluminum and brass materials in microforming. The sensitivity of the interfacial friction to the deformation characteristics of the ring was quantitatively analyzed by the finite element analysis. In addition, a friction model based on slip line field and upper boundary techniques was used to theoretically explain the friction mechanism in microforming.

Development of Investigation and Analysis Technique to Landslides and Its Application (산사태 조사.해석 기법의 개발 및 적용)

  • Kim, Kyeong-Su;Song, Young-Suk;Chae, Byung-Gon;Cho, Yong-Chan;Jeong, Gyo-Cheol
    • The Journal of Engineering Geology
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    • v.18 no.1
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    • pp.69-81
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    • 2008
  • Landslide researches are divided to a method of interrelationship for various factors, method of predicting landslide possibility, and method of estimating landslide risk which are occurring landslides in the natural slope. Most of landslides occurred in natural slope are caused by a heavy rainfall in summer season. Weathered soil layer located in upper side of rock mass was occurred. As well as, they are announced to have an influence to geometry, geology, soil characteristics, and precipitation in the natural slope. In order to investigate and interpret the variety of landslides from field investigation to risk analysis, landslide analysis process due to geotechnical and geological opinions are systematically demanded. In this research, the study area is located in Macheon area, Gyeongsangnam-do and performed the landslide investigation. From the results of landslide investigation and analysis, optimized standard model based on natural landslide is proposed to high technical method of landslide investigation and interpretation.

A Study for Enhancing Efficiency in PUS Contents Development (일반인을 위한 과학대중화 콘텐츠 개발의 효율성 제고 방안)

  • Shon, Hyang-Koo
    • The Journal of the Korea Contents Association
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    • v.16 no.2
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    • pp.117-128
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    • 2016
  • The growing socio-economic effect caused by science and technology requires public to participate in policy-making process, which makes government to boost public understanding of science(PUS). Government has also exerted to construct infra for PUS. However results are not so meaningful. The government-funded science museum has mainly provided the program for students. Besides, science broadcasting channel has recorded the worst viewing rate. Meanwhile, some of the private sector-manufactured contents have attracted public attention in recent years, which is realized by considering elements such as an interesting topic selection, use of outside experts, two-way communication system, level adjusting for public through flexible running system. This study analyze podcast based program, face to face lectures, display contents by private industry, fab lab etc. on the base of the reciprocal PUS model to sort out the reason they have successful results. Futhermore, it argues that government should intensify support for private sector and create synergy effect by cultivate collaboration system between government and private sector to enhance the efficiency of PUS and offers public policy to realize the plan.

The Effect of Evaluative Concerns Perfectionism on Resilience: The Joint Moderating Effect of the Social Support and Emotional Intelligence of the Leader

  • Kim, Min-Kyung;Shin, Je-Goo
    • Knowledge Management Research
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    • v.18 no.4
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    • pp.63-96
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    • 2017
  • In a competitive organizational environment, members view completing tasks to perfection without mistakes as the requirement for success and good evaluation from others. However, unrealistically strong perfectionism can have negative effects on members' psychological states and organizational performance. This study focuses on evaluative concerns perfectionism, the negative aspect of perfectionism, based on positive psychology theory to explore the positive mechanism that comes into place in the process of strengthening organization members' resilience. For this purpose, we performed a moderated moderation analysis to investigate whether the moderating effect of leaders' social support (primary moderator) is moderated by their emotional intelligence (secondary moderator). To verify our research model, we conducted a two-part survey of 252 employees in various industries with a time interval to minimize the common method bias. Job rank and positive affectivity were set as control variables to identify the clear causal relationship among variables. Our findings showed that first, evaluative concerns perfectionism reduced resilience; second, leaders' social support positively moderated the relationship between evaluative concerns perfectionism and resilience; and third, the leaders' emotional intelligence positively moderated the two-way interaction between evaluative concerns perfectionism and the leaders' social support, confirming a moderated moderation. Our findings suggest the need for leaders to assume multidimensional roles to enhance the positive traits of organization members, especially in today's complex business environment. The implications of our findings are further discussed in relation to knowledge management and the development of organization members who exhibit evaluative concerns perfectionism, along with suggestions for future research.

Development of the Operation Cost Models for Preliminary Assessment of the Urban Railways (도시철도 예비타당성을 위한 운영비용함수 모형의 개발)

  • Lee, Jae-Myung;Won, Jai-Mu;Rho, Jeong-Hyun
    • Journal of the Korean Society for Railway
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    • v.10 no.6
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    • pp.766-771
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    • 2007
  • In this research, we were going to make the function which can forecast the operating cost of metropolitan railroad that is performing a role of assistant highway within the city. In order to do this, based on service records of subway line 1st to 8th in Seoul, we extracted 23 variables which can affect to the operating cost, and we selected the final variable for estimate the function of operating cost from correlation among variables and influence analysis. Then, we performed regression analysis by stages using final variable. 6 independent variables are chosen for presuming the operating cost, and we obtained the final 3 variables (quantity of holding motor cars, peak quantity of possessed motor cars, and quantity of stations) as a result of regression analysis. Through this research, function of operating cost of metropolitan railroad has better applicability than existing preliminary validity, and it is used by further preliminary validity investigation and master plan or validity investigation which is accompanied by operation designing, thus we expect that it could make a great contribution to the priority order of investment for metropolitan railroad or process of policy decision.

Virtual Campus Development using 3D GIS (3D GIS를 활용한 가상 캠퍼스 구현)

  • KSong, Sang-Hun;Jeong, Jong-Pil
    • KSCI Review
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    • v.14 no.2
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    • pp.147-152
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    • 2006
  • Data size of moving current GIS great exponentially from 2D to 3D and the processing speed becomes slow thereby and user's real time rendering request is growing. Have problem that time and expense to process data of bulky quantity produce constraint condition of the processing speed. third dimension processing skill, virtual reality processing skill etc. and third dimension GIS about space data of bulk much overmuch to materialize. In this paper DEM data that acquire from satellite or aviation solve these problem embody virtual city in web save topography information that visualization to 3D visualization by VRML, and use modelling tool and acquire 3D campus information for building and road. 3D information acquired this to express texture and natural gifts that have truth stuff more to thing through near texture mapping work 3D imagination illustration of web based embody can.

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Extraction of Design Rule from Han-Style Bathroom Design Using Rough Set Theory (러프집합이론을 이용한 한스타일 욕실공간의 구성규칙 추출에 관한 연구)

  • Park, Jin-A;Kim, Soo-Am
    • Journal of the Korean housing association
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    • v.24 no.6
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    • pp.199-208
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    • 2013
  • Developing a modern Han-style design and providing support for the commercialization development model in recent years has been propelled by the Han-style Support Strategies of the central government in conjunction with Han-style revitalization related projects that reflect the efforts of local governments. Han-style revitalization, the rekindling and revaluing of human behavior and interest in local governments following the social and cultural changes of the past decades, has emerged as an increasingly traditional area of concern in Han-style design. The purpose of the study was to provide a method which clarifies the design rules of the Han-style bathroom based on an evaluation of sensibilities and a rough set theory, and to give the components meaning and to systematize the method. Essentially, the Han-style bathroom design evaluation is a complex multi-criteria decision making process that seeks to improve the effectiveness and objectively of the Han-style bathroom design. Han-style bathroom design can be displayed in a graphical representation in response to input from the evaluation concerning sensibilities. Because the graphical representation is composed of 3D data, it is possible to display the Han-style bathroom design form in any desired perspective and also to perform shading and other operations. With the proposed method, it is possible to obtain a combination of several contributory components which can be referred to as Reducts, Covering Index and Column Score. Han-Style/Non Han-Style Bathroom Designs were identified by the combination of several components.

Research on Approaches to revitalize KKU Design Venture (건국 디자인 벤처(KKU)의 활성화에 관한 연구)

  • 김인경
    • Journal of the Korea Fashion and Costume Design Association
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    • v.5 no.2
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    • pp.93-102
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    • 2003
  • With respect to this research, the College of Arts and Design, Kon Kuk University founded Design Venture of KKU(Kon Kuk University) in July 2001 as an approach to tackle the issue on how to accept and respond to the waves of changes in paradigms of the 21st century represented by information revolution. Such move is to cope more effectively with the changes in the current educational environment with an aim to secure the competitive edges compatible with the conditions of each college under the uniform and standardized educational systems. Even the professionals in the design fields of this country try to find the significance in bringing out in the open the latent creative talents of the students by improving the quality of our daily necessities and putting the students through more practical training, and in creating international competitiveness of our design field by encouraging the students to gain more diverse experiences. Therefore, the purpose of this research is to present the approaches to revitalize Design Venture of Kon Kuk University which has been managed as part of the efforts to establish the new identity for the design of this country in the 21st century, and to present the new model for an enterprise which, rooted in the College, can grow into a high value-added business. The methodology for this research is based on the case study of Design Venture of Kon Kuk University and investigation into the literature. The contents of this research include the following three steps. Firstly, initial research is made into the background for founding the College of Arts and Design which had been promoted as a differentiated strategy for the long-term and short-term development plan of the College of Arts and Design, in Chungju Campus of Kon Kuk University. Secondly, the basic strategy for Vonchi, brand of Design Venture of KKU and the brand launching process are examined. Thirdly, Various approaches to revitalize the Vonchi brand recognition are collected and analyzed to present the conclusion and the alternative. Such research findings as given above on Design Venture of KKU may satisfy diverse consumer-oriented requirements on the strength of the characterization and differentiation of the college and may enhance the competitive edge of the college.

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