• Title/Summary/Keyword: Practical

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A Study on Silk Weighting Process Technique and it's Practical Use (견섬유 중량가공 방법 및 실용화 방안에 관한 연구)

  • 이수철
    • Archives of design research
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    • v.6 no.1
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    • pp.73-86
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    • 1993
  • The development of Korean textile industry has continued for the early industrialization. But a change in situation of circumstances, textile industry undergoes hard times. To overcome the barrier, therefore, technical development and design innovation are needed to make high value added product. This paper try to put to practical use of the silk weighting process technique(WPT). First, we investigate the technical trend of WPT to summarize the theory, and examine the feasibility of technical development. Second, the application of Graft process to silk textile is examined to know whether it is possible as an practical use. Next, we present the practical way of WPT using MAA monomer through experiment. The results are as follow. 1) Considering the lack of silk yarn. Graft process is appropriate new technique to make the value added product, and fine quality. 2) Studing textile goods, it need inter-displlinary co-work not only fiber engineering scope because textile goods is closely related with fashion industry. 3) MAA monomer used in this paper is more excellent then other monomer because it has good weighting effect and does not harm to the nature of textile. 4) MAA WPT is good for silk textiles of ladies jacket and neck-tie.

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A Study on Activation of uTradeHub System (uTradeHub 시스템 활성화 방안에 관한 연구)

  • Lee, Sang-Ok;Lim, Cheon-Hyeok
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.51
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    • pp.441-464
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    • 2011
  • It is childhood yet in uTradeHub system practical use. According as company's necessity of cost-saving is increased according to trade terms aggravation such as uncertainty of international money market, commodities prices rise, necessity of e-trade practical use in company is increased. Use is inevitable by state that link with e-Nego and e-B/L service with related presentation e-L/C banks is not made. At the present users are doing specification only service this main point, and practical use activation through public information and marketing about service is needed situation because most of, companies which is not using service, do not know about existence availability of uTradeHub system, usage, availability. This study presented five such as early materialization of user center's link and integration, medium and small enterprises e-trade participation extension, utilization ratio raising through government's public information, e-trade cooperation business activation between the country, electronic documents standardization etc. by prompting competition about practical use of uTradeHub system.

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A Study on the Teaching Plan of Geologic Field Trip in the Earth Science Ecucation, High School (고등학교 지구 과학에서 야외 지질 조사의 지도 방법)

  • Oh, Mihn-Soo
    • Journal of The Korean Association For Science Education
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    • v.1 no.1
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    • pp.45-52
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    • 1978
  • In order to normalized the Earth Science Education, experiments and geologic field trainings are very important. But it have not carried out on account of many difficulties in current High School of Korea. These difficulties are lack of time, many problems of the text book, heavy teaching load, shortage of facilities and experimental equipments, and poor quality of teacher etc. The practical training of geologic field trip is very important in Earth Science Education. Finally, wirter propose a new teaching plan of geologic field training as follows: 1. The teacher must prepare the guide paper of field geologic training. 2. Subjects of practical training must simplify. 3. The teacher must take a pre-field investigation in order to get the teaching plan and the preparation of practical field training. 4. Let students observe for themselves on this guide, as if they were geologists. 5. The teacher must conclude about practical training after the working.

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A Home Economics Curriculum Development for High School Students Based on Practical Problems Focusing on Food and Nutrition (실천적 문제 중심의 고등학교 가정과 교육과정 개발에 관한 연구 -식생활 내용을 중심으로-)

  • 유지연;신상옥
    • Journal of Korean Home Economics Education Association
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    • v.9 no.1
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    • pp.53-69
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    • 1997
  • The purpose of this study was to develop a Home Economics curriculum for high school students based on practical problems focusing on Food and Nutrition. This study developed practical-problem based approach to curriculum development. This curriculum provided a series of the objectives, contents, learning activities, and assessments. The objectives were divided into process objectives and content objectives. The objectives focused on three systems of action which were technical action, communicative action, and emancipatory action. The contents of this curriculum focused on three practical problems; 1) What should I do regarding my well-being\ulcorner ; 2) What should I do regarding my family’s well-being\ulcorner ; 3) What should I do regarding my society’s well-being\ulcorner The cooperative learning strategies were mainly used in this curriculum. Students were assessed through learning experiences and achievement.

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A Study on the Method to Prepare System Operational Concept for Practical Use Project of Urban Maglev train (도시형 자기부상열차 실용화사업을 위한 시스템 운영개념 작성 방안에 대한 연구)

  • Chung, Kyung-Ryul;Park, Chul-Ho;Yoon, Se-Kyun;Kim, Chan-Mook
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1505-1510
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    • 2007
  • When developers conduct a systems engineering approach the first problems that they will be faced are how to define and analyze the operational concept. In case of practical use project of MAGLEV train, those problems are also important since end products of practical use project must be assured for commercial service level. Lack of domestic developer's experience on systems engineering activity can cause a confusion a progress of the project. This study will propose a guide to establish an operational concept of project to develop or construct urban transit system.

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A Study on College Students' Acknowledging of Life Environment Pollution and Practical Consciousness (대학생의 생활환경 오염도 인지와 실천의식에 관한 연구)

  • Park, Chi-Ju;Lee, Youn-Jung;Jeong, Jun-Hyun
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2004.11a
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    • pp.329-334
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    • 2004
  • The purpose of this study is to analyse the difference in college students' acknowledging of life environment pollution and practical consciousness between their characteristics. This study can be considered to be used as a basic data to suggest the direction of college's environment education and environmental preservation. This study was conducted using questionnaires with 216 college students (71 males and 145 females) of D University in Daegu area from September 20 to 23, 2004. Each of questions about their acknowledging of life environment pollution and practical consciousness was scored on a 5-Point Likert Scale, and then was analysed using the SPSSWIN statistic program.

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DEVELOPMENT OF CAVITATION EROSION PREDICTION METHOD AND ITS APPLICATION FOR MARINE PROPELLER (캐비테이션 침식 추정 방법 개발 및 추진기에의 적용)

  • Park, S.;Rhee, S.H.
    • Journal of computational fluids engineering
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    • v.18 no.3
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    • pp.94-101
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    • 2013
  • In the present study, a practical method to predict cavitation erosion, which caused a critical damage on hydraulic machineries, was developed. Impact and critical velocities were defined to develop a practical method for the prediction of cavitation erosion. To develope the practical method, the computational fluid dynamics (CFD) was introduced. Cavitating flows with erosion in a converging-diverging nozzle and around a hydrofoil were simulated by developed and validated code. Based on the CFD results, the cavitation erosion coefficient was derived by a curve fitting method. The cavitation erosion coefficient was formulated as the function of the cavitation and Reynolds numbers. A cavitating flow in an axisymmetric nozzle followed by radial divergence was simulated to validate the developed practical method. For the application to a propeller, a cavitating flow around a propeller was simulated. Predicted damage extent showed similar with damaged full-scale propeller blade.

A Study on the Comparison of Flow Analysis and Practical Molding for Automobile Bumper Molding (자동차범퍼의 사출성형 해석결과와 실제 성형품의 비교 연구)

  • Hwang S.H.;Kim C.G.;Ji S.D.;Kim M.K.;Moon Y.B.;Jeong Y.D.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.357-358
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    • 2006
  • Importance of using an injection molding analysis has been increased. However the application of it has not been increased because the results of analysis do not sometime match to practical molding. Therefore, the difference of flow analysis and practical molding should be decreased. This study presents reasons of the difference for the location of weld-line in the flow analysis and practical molding on automobile bumper molding.

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Analysis of Dynamic Characteristics of Contact Slider Over Practical Disk Surface (실제 디스크 표면 데이터에 대한 접촉 슬라이더의 동적 안정성 해석)

  • 박경수;전정일;박영필;박노철
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.05a
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    • pp.160-165
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    • 2002
  • The flying height of contact slider is determined by vertical and pitching motions. This paper performed the computer simulation for flying height change of contact slider. It is changed by many parameters, contact stiffness. contact damping, all bearing stiffness ratio and so on. So computer simulation analysis is performed for knowing for what change of these parameters influences in flying height of contact slider. The practical recording zone surface is gotten by using SPM. In recording zone, flying height is simulated for each parameter. the settling time which the flying height of contact slider is lower than 10nm is analyzed over practical disk surface for changing each parameter. Through these results, the contact slider can be analyzed for more accuracy dynamic characteristics.

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A Study of Developing the Practical work Integrated the Course of Study in Upper Grades

  • Tsukamoto, K.;Ohbuchi, Y.;Sakamoto, H.
    • Journal of Engineering Education Research
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    • v.17 no.4
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    • pp.48-53
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    • 2014
  • Recently, the tendency for young people losing interest in science has accelerated. This tendency is remarkable for not only Japan but also some countries of Asia. It is thought that this tendency was brought from the decrease of the chance to watch the actual manufacturing activities, and the decrease of the real experience which children makes something in their childhood. In order to bring up the capable engineers on such a social background, making a product practice which promotes the understanding of the application of theory for manufacturing products is important in addition to study by the text book. In this study, some practical work materials for the lower grades in the college were developed. Integration of the developed materials and the course of study becomes an effective teaching method of the of subjects on a special field. Arranging this practical work on the learning process makes a high effect of the integrated practical work on the curriculum.