• Title/Summary/Keyword: methodology

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A Study on the New Method for Structural Analysis and Design by MDO(Multidisciplinary Design Optimization) Methodology : Application to Structural Design of Flap Drive System (MDO기법에 의한 새로운 구조해석 및 설계기법 고찰: 플랩 구동장치의 구조설계에의 적용)

  • 권영주;방혜철
    • Korean Journal of Computational Design and Engineering
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    • v.5 no.2
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    • pp.184-195
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    • 2000
  • MDO (Multidisciplinary Design Optimization) methodology is an emerging new technology to solve a complicate structural analysis and design problem with a large number of design variables and constraints. In this paper MDO methodology is adopted through the use of computer aided systems such as Geometric Solid Modeller, Mesh Generator, CAD system and CAE system. And this paper introduces MDO methodology as a new method for structural analysis and design through the application to the structural design of flap drive system. In a MDO methodology application to the structural design of flap drive system, kinetodynamic analysis is done using a simple aerodynamic analysis model for the air flow over the flap surface instead of difficult aerodynamic analysis. Simultaneously the structural static analysis is done to obtain the optimum structural condition. And the structural buckling analysis for push pull rod is also done to confirm the optimum structural condition (optimum cross section shape of push pull rod).

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A Development Methodology for Quality Assurance System in Large-Scale Software Development Project (대규모 소프트웨어 개발 사업에서의 품질 보증을 위한 개발방법론)

  • 윤석환;박지은;신용백
    • Journal of Korean Society for Quality Management
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    • v.25 no.1
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    • pp.142-155
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    • 1997
  • To successfully carry out large scale research projects while su, pp.rting quality assurance of research output, effective and systematic management through utilization of resources such as manpower, time and cost as well as engineering techniques such as component technology and design methodology is required. It is necessary to establish development methodology to su, pp.rt quality assurance. The development methodology covers the contents and procedures of the project, such as division of the project into independently executable units, allocation of resources including researchers, component technology, related know-how and equipment, deployment of research units and integration of the project at the end. In this paper we present systematic development methodology for quality assurance in large scale software development projects by analyzing the contents of the methodology a, pp.ied to the Gigabit Information-processing And Networking Technology development project(GIALT).

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Implementation of IEEE 802.11ac Down-link MU-MIMO WLAN MAC using Unified Design Methodology

  • Chung, Chulho;Jung, Yunho;Kim, Jaeseok
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.16 no.6
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    • pp.719-727
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    • 2016
  • This paper proposes a unified medium access control (MAC) design methodology and presents the implementation of the IEEE 802.11ac down-link multi-user multi-input and multi-output wireless local area network MAC using the proposed design methodology. The proposed methodology employs unified code for both network simulation and system implementation. Because the unified code closely relates these two processes, the performance of the implemented MAC system can be estimated before implementation. The MAC architecture for an access point implemented using the proposed design methodology is verified on an ARM-based platform, and it is applied to a 65 nm CMOS library.

Validation of Vibration and Stress Analysis Methodology for APR1400 Reactor Vessel Internals Comprehensive Vibration Assessment Program (APR1400 원자로내부구조물 종합진동평가프로그램 진동 및 응력해석 방법론 검증)

  • Kim, Kyu Hyung;Ko, Do Young;Kim, Sung Hwan
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2012.10a
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    • pp.300-305
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    • 2012
  • The vibration and stress analysis program of comprehensive vibration assessment program (CVAP) is to verify theoretically the structural integrity of reactor vessel internals (RVI) and to provide the basis for selecting the locations monitored in measurement and inspection programs. This paper covers the verification of the vibration and stress analysis methodology of APR1400 RVI CVAP. The analysis methodology was developed to use 3-dimensional hydraulic and structural models with ANSYS and CFX. To validate the methodology, the hydraulic loads and structural reponses of OPR1000 were predicted and compared with the calculated and measured data in the OPR1000 RVI CVAP. Since the results predicted with this methodology were close to the measured values considerably, it was confirmed that the analysis methodology was developed properly.

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A Methodology of Efficient Network Management using Ontology (온톨로지를 활용한 효율적인 네트워크 관리 방법론)

  • Wang, Jong Soo;Kim, Dae Young
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.9 no.1
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    • pp.119-128
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    • 2013
  • The spotlight is thrown on the ubiquitous technology these days, and diverse management technologies are proposed to efficiently manage the networks in the ubiquitous environment. Because each network has its unique management technology, the integrated management of complex networks is a very difficult challenge. In this paper, an integrated network management methodology is proposed to ensure the efficient management of different networks using ontology. Although the proposed integrated network management methodology is quite simple, the definition of this methodology is essential for the integrated network management. Using the $Prot\acute{e}g\acute{e}$ to Ontology development, the terms for the integrated network management were defined, along with the OWL and relevant rules, and several methods were implemented according to the proposed methodology. The process in this paper is considered essential for the network expansion and multiple network management.

Development of integrated design methodology for various types of product - service systems

  • Tran, Tuan A.;Park, Joon Y.
    • Journal of Computational Design and Engineering
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    • v.1 no.1
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    • pp.37-47
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    • 2014
  • We propose a new generic design methodology for different types of PSS. Product - Service System (PSS) has received much attention recently from academia and industry because of its benefits. PSS can provide customers values and functionalities, as well as physical products, to fulfill economic, social and environmental goals. Many methodologies have been proposed for designing PSSs. Most of the existing methodologies are domain specific and were proposed to solve specific problems in certain projects. Some methodologies are generic but they provide neither guideline to practitioners and designers nor reflect the differences in various PSS types. As a generic approach to guide practitioners and designers in designing PSS effectively, the proposed methodology also takes into account user involvement, business model and organizational structure. The proposed methodology is demonstrated through design examples of different types of PSSs.

Analysis of how Development Methodologies Influence the Potential Motivation of Software Developers (개발방법론이 개발직무의 동기유발성에 미치는 영향에 대한 분석)

  • Hwang, Soon-Sam;Kim, Sung-Kun
    • Journal of Information Technology Applications and Management
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    • v.17 no.2
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    • pp.1-18
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    • 2010
  • The Agile methodology is a new trend in software development. Nowadays enterprises have been adopting the agile methodology in an effort to deal effectively with rapidly changing user requirements. In most cases, much improvement was accomplished in the software development. Some studies have mentioned that the motivation of software developers is a contributing factor on the improvement. However, it is not known yet what aspects of the agile methodology get them to be motivated. The aims of this study are the comparison between the traditional methodologies and agile methodology and look into potential motivation of software developer and their jobcharacteristics. For the empirical analyzing, research data were collected by 77 developers of 4 domestic IT companies. The analysis shows that there is significant differences on developer's potential motivation according to what kind of methodology is used. Agile developers to be more motivated than others methodologies developers. It also shows in detail that what kinds of job characteristics of developer are different among them depending on methodologies.

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A Study of Human System Integration Methodology For the Mobile Industry Sustainability System Evaluation Model Design (모바일산업 지속가능 시스템 평가모델 설계를 위한 인간시스템통합 (HSI) 방법론 연구)

  • Kim, Sang Jin;Cha, Woo Chang
    • Journal of the Korean Society of Systems Engineering
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    • v.17 no.1
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    • pp.43-52
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    • 2021
  • The aim of this study is to propose the design suitable for sustainability evaluation model of the mobile industry considering system process (SEP). Although a quantitative evaluation was conducted on the link between the national sustainability report and the mobile industry, it was confirmed that it was difficult to identify stakeholders. So it is necessary to develop the design process suitable for the more operator-specific interfaces. The Human System Integration (HSI) methodology was proposed through linkage with work domain analysis. Agile methodology and Resilience engineering methodology were added for sustainable model design. The proposed sustainability system evaluation model is applied so that it can be easily used in all industries.

Development of a Statistical Methodology for Nuclear Fuel Rod Internal Pressure Calculation (통계적인 핵연료봉 내압 설계방법론 개발)

  • Kim, Kyu-Tae;Yoo, Jong-Sung;Kim, Ki-Hang;Kim, Young-Jin
    • Nuclear Engineering and Technology
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    • v.26 no.1
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    • pp.100-107
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    • 1994
  • A statistical methodology is developed for calculating the nuclear fuel pod internal pressure of Korean PWR fuel in order to reduce over-conservatism of the current KAERI deterministic methodology. The developed statistical methodology employs the response surface method and Monte Carlo calculation. The simple regression equation for the rod internal pressure is derived by taking into account the various fuel fabrication-related and fuel performance model-related parameters. The validity of the regression equation is examined by the F-test, $R^2$-method and Cp-test The internal pressure predicted by the regression equation is in good agreement with that calculated by he computer code using the KAERI deterministic methodology. The distribution of the internal pressure from the Monte Carlo calculation is found to be normal. Comparison of the 95/95 rod internal pressure predicted by the developed statistical methodology with the maximum rod internal pressure by the deterministic methodology shows that the developed statistical methodology reduces significantly over-conservatism of the deterministic methodology.

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A study on development methodology of web-based business simulation game (웹 기반의 경영시뮬레이션 게임 개발 방법론)

  • Kim, Hyung-Sub
    • Journal of Digital Convergence
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    • v.15 no.1
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    • pp.53-60
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    • 2017
  • The time of digital era and the increasing complexity of the management environment have raised uncertainties about the future. Companies have made steady investments in education as a way to prepare for the future. In this study, design and development methodology based on web - based management simulation games (manufacturing, distribution, finance) which author participated in development was presented. The development methodology presented in this study can be roughly divided into business simulation game design methodology and business simulation game development methodology. Since there is no existing research methodology for development methodology, development model is presented based on empirical based on development case. In this paper, we propose an overall content development methodology and propose a detailed methodology of the content.