• Title/Summary/Keyword: try-out

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A Study on Method of CAD/CAM Separate and Relief Modeling to Reduce Lead Time in Die Manufacturing (금형 제작 리드타임 단축을 위한 CAD/CAM 분리 및 릴리프 모델링 방법에 대한 연구)

  • 허정원;김동욱
    • Journal of the Korean Society of Safety
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    • v.14 no.4
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    • pp.93-99
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    • 1999
  • A try was carried out to reduce lead time of die manufacturing. That is to make manual machining and finishing work time shorter by improving CAD/CAM modeling methods, so called with "separate modeling" and "relief modeling". The manual machining and finishing manual work time were reduced adapting the novel CAD/CAM modeling methods. Ultimately we accomplished much reduction of the lead time of die manufacturing.f die manufacturing.

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유전자 알고리즘을 이용한 반능동형가장치의 구조-제어계의 동시최적화

  • 서민선;이시복
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.501-504
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    • 1995
  • A Simultaneous optimal design of structural and control system of a semi-active suspension is applied on a helf-car model in this paper. Suspension stiffnesses and dampings are selected as structural design parameters and damping forces of variable dampers as controller parameters. Sence this optimization problem is of large discontinuous space, conventional exhaustive methods are not enough. So we here try out an approach using Genetic Algorithm for our problem. Through numerical simulation work, the performance of the simultaneously optimized system was tested and showed meaningful improvement over the partially optimized ones.

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In silico High-Throughput Screening by Hierarchical Chemical DB Search by 3D Pharmacophore Model

  • Shin, Jae-Min
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.181-182
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    • 2002
  • Recentadvancesin '-omics ' technologies enable us to discover more diverse disease- relevant target proteins, which encourages us to find out more target-specific novel lead compounds as new drug candidates. Therefore, high-throughput screening (HTS) becomes an essential tool in this area. Among many HTS tools, in silico HTS is a very fast and cost-effective tool to try to derive a new lead compound for any new targets, especially when the target protein structures are known or readily modeled. (omitted)

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The study of study trends of Tang Zonghai in China (중국(中國)의 당종해(唐宗海)의 연구동향(硏究動向)에 대한 고찰(考察))

  • Kim, Jin-ock;Kim, Yong-jin
    • The Journal of Korean Medical History
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    • v.14 no.1
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    • pp.49-59
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    • 2001
  • Papers about Tang Zonghai are mostly appeared in journals, published in his home town, Sichuan. Studies are focused on his medical conception of Blood syndrome. They try to explain Tang's medical conception and local experiences by quoting the text from "Hyuljeungron", Blood syndrome essay. This trend is very different from study methods carried out in Korea.

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The EMI Filter Development of the Electronic Ballast for the Fluorescent Lamp (형광등용 전자식 안정기의 EMI 필터 개발)

  • 박종연;방선배;조계현
    • Proceedings of the IEEK Conference
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    • 2002.06e
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    • pp.303-306
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    • 2002
  • The EMI filter used in switching apparatus is designed on the basis of personal designer experience. A try and error approach leads to a considerables waste of time without assurance to come out to a good solution. The difficulty in the right choice of the component values resides on the dominant role played by their parasitic components at high frequencies and is aggravated by the poor knowledge of the internal impedance of the noise generators. In this paper, we proposed the design technique for the EMI filter effectively using the LISN and the EMI analyzer in the industrial field.

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Clustering Analysis on Heart Rate Variation in Daytime Work

  • Hayashida, Yukuo;Kidou, Keiko;Mishima, Nobuo;Kitagawa, Keiko;Yoo, Jaesoo;Park, SunGyu;Oh, Yong-sun
    • Proceedings of the Korea Contents Association Conference
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    • 2017.05a
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    • pp.257-258
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    • 2017
  • Modern society tends to bring excessive labor to people and, therefore, further health management is required. In this paper, by using the clustering technique, one of machine learning methods, we try to bring out the measure of fatigue from heart rate (HR) variation during daytime work, helping people to get high-quality of healthy and calm life.

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New Structure to Enhance the Light Efficiency in LCoS Optical Engine

  • Huang, Chi-Wei;Mo, Chi-Neng;Wu, Shih-Min
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.744-747
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    • 2005
  • The exploitable efficiency of UHP is very important in a projection system. We always use lens array for light shaping and energy distribution transformation in conventional projection system. Because of the limitation of arc gap and F/# of elements, the utilize efficiency is always dismal. In this paper we try to bring out a new method to reduce the sparkle formed on the PS converter and enhance the system efficiency.

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An Expert System for Optimal Load Transfer in Distribution Systems (배전계통에서의 최적 부하절체를 위한 전문가 시스템)

  • 문영현;최병윤;김세호
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.39 no.9
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    • pp.903-911
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    • 1990
  • When load areas on a feeder are deenergized due to faults and scheduled outage, operators need to identify neighboring feeders, try to restore customers and minimize out-of-service areas. These cases include knowledge of system states and various constraints such as voltage drop. This paper concerns the load transfer in fault restoration and scheduled outage. Also, the operating constraints such as line current capacity, relay trip current, transformer capacity, voltage drop and line loss are considered. This expert system can propose the optimal load transfer method by analyzing the system state and considering the constraints.

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How Network Structure Impacts Firm Performance: The Moderating Effect of Network Openness and Interfirm Governance

  • Kim, Kyunghee;Kim, Jeongtae;Min, Junhong;Ryu, Sungmin
    • Asia Marketing Journal
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    • v.19 no.1
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    • pp.19-34
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    • 2017
  • Despite the importance of the impact of network structure on the relationships between firms and firm performance, few studies have investigated these effects. This study investigates how network openness influences the relationships between TSI, opportunism, technological uncertainty, and supplier performance. We also try to figure out how network openness functions as a governance mechanism.

Aekyung: Design Innovation on New Product Development

  • Yoo, Changjo;Park, Kyungdo;Cho, Yeonjin
    • Asia Marketing Journal
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    • v.16 no.4
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    • pp.89-105
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    • 2015
  • Because of fierce competition, the importance of product design has been emphasized. In this case study of Aekyung, we mainly focus on this company's efforts to incorporate design innovation into new product development process. Their efforts on innovative product design turn out to be rewarding as the sales and market share soar. Through this case, we try to identify what aspects of Aekyung's efforts lead to the better and more innovative product design.