• Title/Summary/Keyword: design methodologies

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Performance Analysis of Fast Packet Switch

  • Lee, Kang-Won
    • Journal of Korean Institute of Industrial Engineers
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    • v.22 no.2
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    • pp.277-302
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    • 1996
  • The overall performance of BISDN depends significantly on the interconnection network or the switch fabric. Hence, it is extremely important to evaluate the performance of the network or the fabric. The well developed performance models also provide insight into the factors that determine design tradeoffs as well as quantitative estimates of their importance. The objective of this paper is to investigate and critically compare all the developed performance analysis models of FPS according to internal switch fabric structure, traffic assumptions, performance measures, methodologies, etc. FPSs are described according to their internal fabric structure. Brief history of FPS performance analysis is mentioned and performance analysis modeling is discussed.

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Emerging Technology Mining Framework Design in Mobile Telecommunication Industry (이동통신 산업 유망기술 발굴 방법론 설계)

  • Sim, Hyeon-Dong;Lee, Yeong-Ho;Kim, Yeong-Uk
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2008.10a
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    • pp.157-161
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    • 2008
  • In this paper, we propose a new framework for identifying emerging technologies to in mobile telecommunication industry. We designed a new framework using qualitative and quantitative methodologies. Finally, we deduced emerging technologies using our framework for mobile network operator.

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FPGA Implementation of the Digital Range Tracker (디지털 거리 추적기의 FPGA 구현)

  • Shim, Sung-Chul;Kim, Hong-Rak;Kim, Soo-Hong;Lee, Seung-Ryong;Kim, Lee-Han
    • Proceedings of the KIEE Conference
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    • 1999.11c
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    • pp.709-711
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    • 1999
  • In this paper, we propose the design methodologies for the range tracker which is designed for minimizing the range tracking error. The range discriminator has been implemented digitally. Finally, experimental results of the Digital Range Tracker are provided.

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Workplace design-A CAD approach (작업공간의설계-CAD에 의한 접근)

  • 이남식;박경수
    • Journal of the Ergonomics Society of Korea
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    • v.1 no.1
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    • pp.29-34
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    • 1982
  • Traditional methodologies for ergonomic evaluation are too laborious to be accepted broadly. CAD flex- flexibility and its ease can be a key to breaking this barrier. In this paper, a biokinematic modelis suggested for interactive computer aided ergonomic evaluation. Model parameters are derived and validated by regression analysis. This model showes more flexibility than the stick and joint models. An application is presented to show the clarity of this approach.

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Advanced Heat Transfer Analysis Model of LNG Storage Tank (LNG 저장탱크의 개선된 온도해석 모델)

  • 전세진;정철헌;진병무;김성운
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.115-120
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    • 2003
  • Several methodologies were devised to reasonably predict the temperature boundary conditions of inner face of the concrete outer tank so as to set up heat transfer analysis model of the full containment above-ground LNG storage tank. In this model, outer tank is solely taken into account and the beneficial effect of suspended deck and insulation layers on the temperature distribution of outer tank is separately formulated according to the proposed procedures. More effective design of the insulations can be achieved when the proposed simple schemes are used in the preliminary stage.

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Electrostatic Discharge (ESD) and Failure Analysis: Models, Methodologies and Mechanisms for CMOS, Silicon On Insulator and Silicon Germanium Technologies

  • Voldman, Steven H.
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.3 no.3
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    • pp.153-166
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    • 2003
  • Failure analysis is fundamental to the design and development methodology of electrostatic discharge (ESD) devices and ESD robust circuits. The role of failure analysis (FA) in the models, methodology, band mechanisms evaluation for improving ESD robustness of semiconductor products in CMOS, silicon-on-insulator (SOI) and silicon germanium (SiGe) technologies will be reviewed.

The Reminding Words Evaluation Method for Icon Design (연상단어 평가를 통한 아이콘 디자인 연구)

  • Ha, Kwang Soo
    • The Journal of the Korea Contents Association
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    • v.14 no.10
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    • pp.64-72
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    • 2014
  • As the importance of interface became emphasized recently, function of icon as an element that helps operation and formative function as an aesthetic element are becoming emphasized. Specially, various research methodologies for measuring the understanding degree of users are being attempted in functional aspect, however, they are facing limitations as user evaluation method of quantitative investigation for statistical analysis became overly dependent on the consent from majority. To overcome such limitation, a methodology of measuring sensibility as aesthetic impression or individuality based on the system of emotion or system of understanding of users and designing icon based on the measurement is being attempted continuously. Therefore, this study suggested an evaluation method using reminding words and conducted an empirical study to apply results on the icon design by applying the evaluation method on icon design of printing products to measure the user sensibility and understanding level. Through this process, this study intended to research summaries on the design evaluation method which based on the evaluation of user sensibility and understanding level and to debate effective design methodologies through the process of applying these summaries on the project. The intention was to progress discussion from practical application perspectives apart from the textbook type discussion by applying a research methodology through concrete cases. This study objectified sensibility and understanding level of users in the icon design aspect, suggested a methodology that can be applied on the design, and it is expected to be used when progressing the icon and GUI design.

Performance-based seismic analysis and design of code-exceeding tall buildings in Mainland China

  • Jiang, Huanjun;Lu, Xilin;Zhu, Jiejiang
    • Structural Engineering and Mechanics
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    • v.43 no.4
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    • pp.545-560
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    • 2012
  • Design codes provide the minimum requirements for the design of code-compliant structures to ensure the safety of the life and property. As for code-exceeding buildings, the requirements for design are not sufficient and the approval of such structures is vague. In mainland China in recent years, a large number of code-exceeding tall buildings, whether their heights exceed the limit for the respective structure type or the extent of irregularity is violated, have been constructed. Performance-based seismic design (PBSD) approach has been highly recommended and become necessary to demonstrate the performance of code-exceeding tall buildings at least equivalent to code intent of safety. This paper proposes the general methodologies of performance-based seismic analysis and design of code-exceeding tall buildings in Mainland China. The PBSD approach proposed here includes selection of performance objectives, determination of design philosophy, establishment of design criteria for structural components and systems consistent with the desirable and transparent performance objectives, and seismic performance analysis and evaluation through extensive numerical analysis or further experimental study if necessary. The seismic analysis and design of 101-story Shanghai World Financial Center Tower is introduced as a typical engineering example where the PBSD approach is followed. The example demonstrates that the PBSD approach is an appropriate way to control efficiently the seismic damage on the structure and ensure the predictable and safe performance.

The Methodologies of Digital Engineering Applications to Manufacturing Collaborations in Automotive Industries (자동차 산업분야의 효과적인 제조협업 구현을 위한 디지털 엔지니어링 적용 방법론에 대한 연구)

  • Lee, Yoo-Chul;Bae, Hye-Rim
    • IE interfaces
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    • v.25 no.1
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    • pp.87-95
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    • 2012
  • Very special and tentative considerations including emotional aspects are required to apply any new mechanism and methodologies for manufacturing fields due to several reasons. This study reviews the characteristics of manufacturing collaborations through specific cases applied digital engineering to enhance the collaboration performance in manufacturing domains. Two cases of collaboration related with automotive manufacturing process are analyzed to extract meaningful insights for better collaboration model suggestions. The first case deals the robot simulation to find out advance errors in jig and fixture design during the various welding process of body-in-whites. The effective communication protocol to share their idea and agreed schedules are essential for this collaboration. More severe requirement of collaboration between R&D and manufacturing departments are studied in the second case for e-coating process. The invisible barriers among different departments are lowered by the process application of Computer Aided Engineering which can make sure their own interesting effectively. Those technical and managerial suggestions can be used when the information system and standard process are sought to implement and update not only when innovation projects are executed.

A Usability Checklist for the Heuristic Evaluation of Mobile Phone User Interface

  • Park, Jun-Ho;Suh, Young-Bo;Lee, Cheol;Ji, Yong-Gu;Yun, Myung-Hwan
    • 한국HCI학회:학술대회논문집
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    • 2006.02a
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    • pp.909-917
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    • 2006
  • In the last decade, the research of the usability of mobile phones has been a newly evolving area with few established methodologies and realistic practices that ensure capturing usability in evaluation. Thus, there exists growing demand to explore appropriate evaluation methodologies that evaluate the usability of mobile phones quickly as well as comprehensively. This study aims to develop a task-based usability checklist based on heuristic evaluations in views of mobile phone UI practitioners. A hierarchical structure of UI design elements and usability principles related to mobile phones were developed and then utilized to develop the checklist. In order to demonstrate the practical effectiveness of the proposed checklist, comparative experiments were conducted on the usability checklist and usability testing. Majority of usability problems found by usability testing and additional problems were discovered by the proposed checklist. It is expected that the usability checklist proposed in this study could be used quickly and efficiently by usability practitioners to evaluate the mobile phone UI in the middle of the mobile phone development process.

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