• Title/Summary/Keyword: Technical

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Importance of Mechatronics in Maritime Education

  • Durmusoglu, Yalcin;Deniz, Cengiz;Aydogdu, Y. Volkan;Talay, A. Atil
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.06a
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    • pp.110-112
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    • 2012
  • Education and training of technical staff for the new generation technological equipment has a vital importance for developing countries in order to maintain sustainable development and keep up with new generation technologies. Mechatronics the synergistic combination of mechanical, electronic and software engineering from an engineering perspective to serve the purposes of controlling advanced hybrid systems is a product of new generation technology which can be given as a sample to this phenomenon. Recent marine engines are combination of heavy industry with high technology. Nowadays, ships are built in full automation and equipped with computer controlled mechatronics systems. However, finding qualified officer and engineers who can operate, maintain, control and repair when it is required such full automatic systems with knowledge of a new generation system became a serious issue. Due to importance of this fact STCW Manila amendment has new training and certification requirements for electro-technical officers. In this paper, Mechatronics applications on ship are introduced, importance of it highlighted and a new syllabus is proposed for the training of marine engineers to be nurtured with mechatronics knowledge as it is required.

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Team Teaching as an Approach to Writing Education for the Engineering Students (이공계 글쓰기 교육의 팀티칭 사례 연구)

  • Nam, Kyoung-Woan;Jo, Cheol-Woo
    • Journal of Engineering Education Research
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    • v.15 no.1
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    • pp.9-17
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    • 2012
  • Communication skills, such as writing documents and presenting technical details, are thought to be essential for modern engineers. Engineering students usually have less interest in writing and presentation than their humanities student counterparts and their concerns are different, too. So it is necessary to teach them in a different way which is suited to them. However, teaching such subjects has been a tricky problem for educators in terms of teaching methods. Also, to teach writing and presentation effectively for engineering students, collaboration between the faculties of different disciplines is necessary because each discipline has its own specific domain knowledge and approaches. But many unsolved problems exist with regard to how to deal with the technical and administrative aspects, and so on. This paper introduces one case in the education of technical writing and presentation, which is a collaboration between an engineering faculty and a faculty of literature. The literature faculty conducts basic education and training for writing skills, while the engineering faculty teaches the technical aspects of documentation, as well as presentation skills. The focus is placed on topics such as self-introduction, searching technical literature and materials, describing and explaining things and presentation practice, etc. During the class there is cooperation in each topic domain, while the faculties collaborate in teaching and evaluation.

A Study on the Technical Demand of Human Sensibility Ergonomics (감성공학 기술수요분석에 관한 연구)

  • 이병민;윤석기
    • Journal of Korea Technology Innovation Society
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    • v.1 no.1
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    • pp.59-68
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    • 1998
  • Human Sensibility Ergonomics could be termed as an engineering approach to realize image or feeling of human into product design. Therefore, we measure qualitatively, quantitatively and scientifically the sensibility of human and apply it to design of product and environment, Later, we will try to help to manufacture products conveniently and comfortably for more pleasent human life. As the concept of products is changed from producer oriented products to consumer oriented, the technical trend of Human Sensibility Ergonomics improves and the demand of it increases. As we recognize the concept and importance of Human Sensibility Ergonomics in the country, we are going to apply to automobil, home appliance, etc. So, it is important to analyze the technical trend, survey the demand of Human Sensibility Ergonomics in the inside and outside of country, because it contributes to set up research direction and of Human Sensibility Ergonomics and to estabilish the priority of R&D, etc. This study is the analysis of the technical trend and character by fieldes of Human Sensibility Ergonomics in the country, surveyed the technical demand on automobile, home appliance in product field and the sensor of the five senses and processing technology in the infra technology field of Human Sensibility Ergonomics.

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The computational characteristics of thrust and propellant mixture ratio regulators for LRE using a propellant combination of methane and oxygen

  • 주대성;남궁혁준;조용호;김경호;우유철
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2002.10a
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    • pp.18-18
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    • 2002
  • A project where the TPUs(Turbo Pump Units) for 10tf-thrust oxygen/methane LRE (Liquid Rocket Engine) are under development is being implemented to include an experimental combustion chamber developed. In the process of it, we introduced the power-balanced engine cycles in order to substantiate concepts of the engine using the combinations of the propellants. Accordingly, the main engine parameters of nominal operating mode are resulted from the 1-Dcalculations and it is found that the regulators are needed for controlling the expected pressure levels in the characteristics of propellant mixture ratio and thrust supposing the regulator is set to analogue-typed one which is easy to develop.The technical requirements like the nominal flow rate, its deviations expected and the pressure difference In need helped the several main characteristics of regulators to be determine in this stage. Here, a dozen of deviation values in the main parameters related to engineoperation are taken into independent consideration and accepted to the results for additional regimes of the regulators.Finally, we can determine the scheme and the primary dimensions along with the calculation design of the spring acceptable for general configuration which can definitely forwarded to the autonomous tests of the aggregates, The obtained data in further will be used for successive refinement of operating mode of the engine.

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An Effective Analysis and Management of Technical Risk to Turn-key based Plant Construction Contracts using Systems Engineering (시스템엔지니어링을 이용한 턴키방식 플랜트 건설계약의 기술적 위험요인 효과적 분석 및 관리)

  • Hong, Dae Geun;Byun, Hee Chul;Suh, Suk-Hwan
    • Journal of the Korean Society of Systems Engineering
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    • v.10 no.2
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    • pp.59-69
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    • 2014
  • In the bidding stage of turn-key based plant construction contracts, owners provide design and performance basis for contractors instead of giving design drawing. To win the bid for a plant construction, the contractors should be obliged to satisfy and ensure owners'requirements such as design and performance basis in a plant construction project, In other words, owners imposes technical risk of the design to the contractors by specifying responsibility for the analysis and verification of the plant construction. Thus, it is very important that contracters make accurate and realistic basic design plan in a short period of time. To deal with such a situation, we propose a systems engineering approach for the analysis and management of the technical risk. Specifically, we first: 1) Analyzes technical risk related with the plant design information for the bidders, followed by 2) Developing stakeholder requirements for the basic engineering design, and 3) System requirements for dealing with technical risk. Also, in this paper, we proposed converting method from MOE(Measure of Effectiveness) to MOP(Measure of Performance) in the risk analysis. To show the effectiveness of the proposed method, we carried out a case study.

Economic Model of Performance Measurement for Technical and Vocational Education in Developing Countries Using Official Development Assistance (개도국 직업훈련학교에 대한 공적개발원조 시 경제적 성과 측정 모형)

  • Ghang, Bong-Jun
    • The Journal of Korean Institute for Practical Engineering Education
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    • v.3 no.1
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    • pp.103-109
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    • 2011
  • The ODA(Official Development Assistance) of Korea is growing considerably, and the ODA projects in the technical and vocational education have the good performance to the recipient countries, because they have the direct and quick benefits. But there are no economic model of performance measurement for the ODA in the technical and vocational education. The purpose of this study is to develop the economic model of measuring the performance of the ODA in the technical and vocational education. This study use the ROI model using financial information and the BSC model using non-financial information, and link each model closely. The ROI model using financial information is more relevant, because the benefits of the technical and vocational education are distinct and quick to the recipient groups.

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The AHP Method to Quantitate Investigation Items of Cut Slope (계층분석과정을 통한 절토사면 조사항목의 정량화)

  • Lee, Jong-Young;Shin, Chang-Gun;Kim, Yong-Soo;An, Sang-Lo
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.732-737
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    • 2006
  • The facility diagnosis technique of past subjective judged the technical expert and interpreted stably mainly. The facility the periodical civil official becomes indispensability consequently with the law and the system and objectivity inspection which relates with a this and development of diagnosis technique were necessary. Currently the evaluation elements which relate with an inspection and diagnosis technique depended to the subjectivity of each facility quality, data statistics, diagnosis know-how, various circumstance and the technical expert and the evaluation item came to decide. But the evaluation score distribution of marks of each item depended plentifully in data analysis result and experience. The past method is weak in logically because the objection theoretical background and basis are insufficiency. Consequently in order to apply a data analysis result and an experience logically, it used AHP(Analytic Hierarchy Process) method from this research. It is visible with the fact that the application result reconfirmation and complement process will be necessary the technique which is suitable in the multi facility management. Also it is expected with the fact that the application characteristic from the next relation technique will be excellent.

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Measuring Technical and Scale Efficiencies of Korean Seed Companies -On the Outset of Establishing the Center for Private Seed Companies- (국내 육종업체의 기술 및 규모효율성 분석 -민간육종연구단지 조성을 계기로-)

  • Gim, Uhn-Soon;Choi, Se-Hyun;Cho, Jae-Hwan;Jung, Yong-Gwan;Lah, Jung-Hyun
    • Korean Journal of Organic Agriculture
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    • v.22 no.1
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    • pp.1-23
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    • 2014
  • The purpose of this paper was to measure technical efficiencies and scale efficiencies of Korean seed industry by DEA method, and to identify the factors affecting the efficiencies by Tobit regression model. Survey data of 50 seed companies nationwide were applied for the analysis. The average score of overall technical efficiency for the surveyed companies in 2012 was 0.44, which is decomposed into pure technical efficiency 0.68 and scale efficiency 0.63. A majority of the seed companies exhibited at least one form of inefficiency except a few companies in optimal scale. It was also shown the most companies were operating in the stage of increasing returns to scale, which implies Korean seed companies are mainly in smaller scale than optimal. Additional results suggest that the Center for Private Seed Companies, which will be established at Gimje in 2015, plays an important role to make domestic seed companies improve their scale efficiency as well as pure technical efficiency by way of enlarging their size and co-using the high technology in the Center.

2-Dimensional Magnetic Properties of Electrical Steel Sheet Under Rotating Magnetic Field (회전자계하 전기강판의 2차원 자기적 특성 분석)

  • Ha, Kyung-Ho;Kim, Ji-Hyun;Kwon, Oh-Yeoul;Cha, Sang-Yoon;Kim, Jae-Kwan;Takahashi, Norio
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.621-622
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    • 2008
  • This paper deals with the magnetic properties under the rotational magnetic field on the electrical steel sheet by using Single Sheet Tester with two excitation coils. Actually, the magnetic flux of stator cores in running motors have the behaviour of rotating and alternating flux. In order to improve motor characteristics, it is require to estimate these magnetic properties. When the magnetic field vectors are rotating around in the plane of the sheet during one period of cycle, the magnetization properties and the core loss are measured and then, the results are compared with the magnetic properties obtained by the alternating magnetic fields.

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Overview of recent developments of Korea Electrical Code of lightning protection system (한국전기규정(Korea Electrical Code) 피뢰시스템 제정(안) 해설)

  • Lee, Hyo-Jin;Lee, Kang-Hee;Lee, Geum-Hwan;Kim, Jun-Taek;Shin, Ki-Hyun;Kim, Han-Soo
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.1631-1632
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    • 2015
  • 기술의 발전과 사회/환경변화, WTO/TBT 및 FTA 협정 이행을 위한 국제표준 도입 등 대내 외적 환경에 능동적/선제적으로 대처하기 위하여 국제표준 수준의 규정인 한국전기규정(KEC) 제정(안)을 개발하고 있다. 한국전기규정(KEC)은 국제표준인 IEC를 근간으로 하고, 상세사항은 DIN, BS, NEC 등의 선진표준을 참조, 국내외 표준들의 비교/조사를 통한 개발을 목적으로 제정 중에 있다. 한국전기규정(KEC)은 제1편 공통분야와 제2편 저압전기설비분야, 제3편 고압전기설비분야, 제4편 지능형전력망분야 등 총 4편으로 구성되며 이 중 피뢰시스템은 IEC 62305를 기초로 하여 제정되었다. 본 논문에서 한국전기규정(KEC) 제1편 제5부 피뢰시스템분야에 대한 중요사항에 대해 제시하였다.

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