• Title/Summary/Keyword: 엔지니어링 분석법

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Case study of the Systems Engineering Tool Infra Construction for System Engineering Application and Vitalization (시스템 엔지니어링 적용 및 활성화를 위한 전산지원도구 인프라 구축 사례)

  • Jang, Jae Deok;Choi, Sang Taik;Kim, Myoung Ho;Park, Dong Ju;Kim, Seung Hwan;Choi, Sang Wook
    • Journal of the Korean Society of Systems Engineering
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    • v.6 no.2
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    • pp.1-6
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    • 2010
  • 본 논문은 시스템 엔지니어링 프로세스 및 방법론에 입각하여 조직의 시스템 엔지니어링 전산지원도구 인프라를 구축한 사례에 대해 제시한다. SE 표준 프로세스인 EIA-632를 기준으로 시스템 설계의 요구사항 정의 프로세스, 해결방안 정의 프로세스, 제품구현의 구현 프로세스, 기술평가의 시스템 분석 프로세스를 효율적으로 수행할 수 있도록 전산지원도구 인프라를 IBM 사의 Rational 제품들로 구축한 것을 보여주고, 각 프로세스 별 구축된 전산지원도구의 활용법을 보여준다.

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An Object-Oriented Approach for Engineering Knowledge Management System Analysis and Design (엔지니어링 지식관리시스템 분석 및 설계를 위한 객체지향적 접근법)

  • Yang, Kun-Woo;Cho, Hyuk-Soo
    • Journal of Information Technology and Architecture
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    • v.11 no.3
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    • pp.333-345
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    • 2014
  • Knowledge management system (KMS) is an information system that helps an organization manage its knowledge assets effectively as well as maximize their values within the organization. In engineering fields, because the expertise and know-how of experts are so critical, KMS can play an important role to store and share the experts' knowledge within the organization. This paper adopts an object-oriented approach to analyze and design an engineering knowledge management system required to manage and share engineering knowledge effectively. A field study is conducted against construction and automobile engineers to draw critical success factors to successfully implement and adopt an engineering KMS and based on this study, the engineering KMS has been analyzed and designed. Also, this paper proposed a flexible system architecture that can be applied to various engineering fields.

Strategies going into other countries throughout analysis of factors which weakens oornpetitiyeness in domestic construction engineering companies (국내 건설엔지니어링 업체의 대외경쟁럭 저하원인 분석을 통한 해외진출 활성화 방안)

  • Park Hwan-Pyo;Park Sang-Hoon;Cho moon-Young
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.6 s.22
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    • pp.101-109
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    • 2004
  • The construction engineering field is less than $3\~5\%$ of the gross construction cost but engineering's role is very important because the performance of final facility is decided in the engineering stage. Nevertheless, before now government and private compares are more concentrated on construction works than making strategy to strengthen the competitiveness and technical development of investment in construction engineering sectors. Therefore this research have compared and analyzed the competitiveness of domestic construction engineering companies throughout analytic method 'SWOT' to those developing countries, which are potential big market objects, such as Russia Libya and Indonesia Such research was obtained through business trip & consultation with related specialists for the difficulties of domestic companies in advancing into overseas market. Moreover this research have analyzed the technical improvement of construction engineering companies and reason for competitiveness weaken by various aspects, it provides governmental and private plans to advance into overseas market Especially, to strengthen domestic companies into advancing overseas market it has suggested that tax & subsidy privileges, supporting plans for obtaining information of overseas and strategies cooperation with other organizations.

A Study on the Success Factors Related to the Performance of Power Plant Engineering Projects (발전플랜트 엔지니어링 프로젝트 성공요인 우선순위 도출 연구)

  • Suh, Jaeho;Lee, Dongmyung
    • Korean Journal of Construction Engineering and Management
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    • v.25 no.2
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    • pp.11-22
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    • 2024
  • Power plant engineering industry obtains EPC plan project and delivers results about electricity, measurement, machinery, and piping and so on. Its works are taken by projects. Although power plant engineering composes 2~5% of whole EPC project cost, it's one of the fundamentals because it affects process after planning step a lot. However, domestic power plant engineering companies' project performance ability is insufficient and there's a need for systematic performance. Thus, this study defined related factors of successful performance and analyzed the priority among them through analytical hierarchy process. All respondents recognized experience, knowledge, and communication as important factors. Administrators considered knowledge, experience, and communication. But hands-on workers considered experience, knowledge, human resources. Those who have experience in oversea project considered process, experience, human resources. However those who don't have experience in oversea project considered knowledge, experience, and communication. Recognition of important factors varies by the position and work experience of members.

Ultrasonic Velocity Measurements of Engineering Plastic Cores by Pulse-echo-overlap Method Using Cross-correlation (다중 반사파 중첩 자료의 상호상관을 이용한 엔지니어링 플라스틱 코어의 초음파속도 측정)

  • Lee, Sang Kyu;Lee, Tae Jong;Kim, Hyoung Chan
    • Geophysics and Geophysical Exploration
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    • v.16 no.3
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    • pp.171-179
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    • 2013
  • An automated ultrasonic velocity measurement system adopting pulse-echo-overlap (PEO) method has been constructed, which is known to be a precise and versatile method. It has been applied to velocity measurements for 5 kinds of engineering plastic cores and compared to first arrival picking (FAP) method. Because it needs multiple reflected waves and waves travel at least 4 times longer than FAP, PEO has basic restriction on sample length measurable. Velocities measured by PEO showed slightly lower than that by FAP, which comes from damping and diffusive characteristics of the samples as the wave travels longer distance in PEO. PEO, however, can measure velocities automatically by cross-correlating the first echo to the second or third echo, so that it can exclude the operator-oriented errors. Once measurable, PEO shows essentially higher repeatability and reproducibility than FAP. PEO system can diminish random noises by stacking multiple measurements. If it changes the experimental conditions such as temperature, saturation and so forth, the automated PEO system in this study can be applied to monitoring the velocity changes with respect to the parameter changes.

A study to determine the design parameters of Lifeboat Davit by Using FEM and Taguchi Method (유한요소해석과 다구찌법을 이용한 구명정 진수장치 설계인자 결정에 관한 연구)

  • Choi, Joo-Hyoung;An, Jung-Chul;Kim, Jeong-Hwan;Ryu, Chan-Uk;Choi, Young-Sam
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.4
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    • pp.554-559
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    • 2010
  • Lifeboat davit is composed of main frame, main arm, upper arm and support bar. In this paper, design parameters that affect the bending stiffness were set as plate thickness, width and hight of upper arm. To analyze the influence of parameter factors, FEM and Taguchi Method were used. This paper will help substantially in many industries.

A Study on the Effective Standard Career Development Program for Construction Engineer (건설엔지니어링 기술자 표준 경력관리 효율화 방안 연구)

  • Kim, Sang-Bum;Kim, Yong-Bi
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.3
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    • pp.1181-1189
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    • 2013
  • This study illustrates the results of a background policy research conducted to provide supports for the 'Korean Engineering Industry Enhancement Law' promulgated by the Korean Ministry of Knowledge Economy. The main issue covered in this study is an effective way of managing standardized career development program for construction engineers. This study attempted to provide detailed criteria and guidelines for the public career development program for construction engineers by effectively collecting and analyzing relative. In doing so, various opinions from a wide range of stakeholders and related parties were gathered. In addition, an in-depth benchmarking investigation was performed with four main associations who have been operating their own career development management program for construction engineers. Some of the findings from this study have played a positive role specifying the details of the recently promulgated law such as 'Notice by Ministry of Knowledge Economy 2011-76: guidelines for managing construction engineer career'. This study was an empirical and practical research effort helping the government to set up an effective construction law system.

회원칼럼 I - 건축구조설계! 어느 법제도 하에 있어야 하겠는가?

  • Cha, Gwang-Chan
    • 건축구조
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    • v.19 no.1
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    • pp.16-18
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    • 2012
  • 현재 건축 관련 법제도가 요동치고 있다. 서로 자기분야에 유리하도록 법제정 및 법개정을 서두르고 있다. 이런 시점에서 우리 건축구조기술사들은 어떤 대책을 세워야 하겠는가? 그동안 제정된 법규 또는 입법 예고된 법규들 중 우리 건축구조기술사와 관련이 있는 법을 살펴보고자 한다. 또한 FTA가 통과되고 엔지니어링산업 시장이 개방될 시 우리 건축구조설계분야가 어느 법제도 하에 있어야 건축구조설계산업이 경쟁력을 갖고 살아남을 수 있겠는지 나름대로 분석한 결과 의견을 피력하고자 한다.

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An Optimization of the Distributed Generator Combination for Microgrid using Linear Programming (선형계획법을 이용한 마이크로그리드의 분산전원 조합 최적화)

  • Lee, Hak-Ju;Chae, Woo-Kyu;Jung, Won-Wook;Song, Il-Keun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.8
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    • pp.133-141
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    • 2010
  • MG(Microgrid) is a small power supply system located on-site that can supply both the electricity and the hot-water simultaneously. Engineering S/W is requested to construct Microgrids economically. We developed Engineering S/W that can combine DERs (Distributed Energy Resources) most economically using the linear programming and estimate of the economic. Developed S/W was programed using GAMS(General Algebraic Modeling System) and it is composed of the optimal DER combination module and forecasting module of renewable energy's output. We embody it based on MS Excel considering the user's convenience and we show its validity through a case study. We think that developed S/W will be very useful for planning MGs and energy supply.

A Prediction of N-value Using Regression Analysis Based on Data Augmentation (데이터 증강 기반 회귀분석을 이용한 N치 예측)

  • Kim, Kwang Myung;Park, Hyoung June;Lee, Jae Beom;Park, Chan Jin
    • The Journal of Engineering Geology
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    • v.32 no.2
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    • pp.221-239
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    • 2022
  • Unknown geotechnical characteristics are key challenges in the design of piles for the plant, civil and building works. Although the N-values which were read through the standard penetration test are important, those N-values of the whole area are not likely acquired in common practice. In this study, the N-value is predicted by means of regression analysis with artificial intelligence (AI). Big data is important to improve learning performance of AI, so circular augmentation method is applied to build up the big data at the current study. The optimal model was chosen among applied AI algorithms, such as artificial neural network, decision tree and auto machine learning. To select optimal model among the above three AI algorithms is to minimize the margin of error. To evaluate the method, actual data and predicted data of six performed projects in Poland, Indonesia and Malaysia were compared. As a result of this study, the AI prediction of this method is proven to be reliable. Therefore, it is realized that the geotechnical characteristics of non-boring points were predictable and the optimal arrangement of structure could be achieved utilizing three dimensional N-value distribution map.