• Title/Summary/Keyword: Relation of Characteristics

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A Study on the Relation between Cell morphology and Saturation condition in Gas-pellets MCPs (가스-펠릿 초미세 발포 사출 플라스틱 특성 연구)

  • Cha S. W.;Seo Jung-hwan
    • Journal of the Korean Society for Precision Engineering
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    • v.22 no.12 s.177
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    • pp.87-92
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    • 2005
  • In microcellular injection molding, gas supply system is needed. But, that device is very expensive to attach to the injection molding machines. So, new method is needed and gas-pellets MCPs is one of the solutions. In gas-pellets MCPs, there will be strange characteristics. In this paper, some characteristics are described on the view point of saturation pressure and saturation time.

Process Improvement of PCB Electric Circuit Pattern by Ink Drop Jetting Control and Characteristics Analysis of Industrial Inkjet Piezoelectric Print Head (산업용 잉크젯 압전프린트 헤드의 특성해석 및 잉크 망점제어에 의한 PCB 전기회로패턴 공정개선)

  • Youn, Shin-Yong
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.65 no.1
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    • pp.57-65
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    • 2016
  • This paper was analyzed the characteristics of piezoelectric inkjet print head using finite element method(FEM). It showed the bending node driving of piezoelectric and relation theory principle consider piezoelectric material characteristics and ink characteristics. From such result we were had the piezoelectric head design and manufacture. It got a this head characteristics through experiment, we confirmed that proper voltage control is possible to through ink drop control experiment of piezoelectric print head. This paper was obtained the suitable ink jetting characteristics that manufacture the control circuit and piezoelectric inkjet print head. This practice product was applied to improvement of PCB electric circuit pattern by etching resist ink that PCB manufactured to complex process over traditional 6 stages can be simpled to 1 stage by inkjet printing technology.

A Comparative Study on the Formative Relation of Yangban's Residential Architecture and Furniture in the Chosun Dynasty (조선시대 양반계층의 주택과 가구의 조형적 연계성에 대한 비교연구)

  • Kim, Jin-Ok
    • Korean Institute of Interior Design Journal
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    • v.15 no.5 s.58
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    • pp.3-11
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    • 2006
  • Our residential architecture and furniture have developed their unique formative characteristics under the influence of the natural environment as well as under socio-cultural influence. In order to understand such characteristics of our residential architecture and furniture, we need to clarify similarities and differences through comparative study from various perspectives. The present study purposed to examine the effects of mutual relations among Yangban's residential architecture and their furniture in the Chosun Dynasty on their formative characteristics, to identify the formative characteristics of shapes, materials, colors, patterns and decorations found in the residential architecture and their furniture, and to make a comparative analysis of the formative characteristics of the residential buildings and their furniture. This research will provide a ground for reinterpreting our culture and help to apply Korean culture identity to today's interior and furniture design.

Design of Microinstruction Definable Language ((마이크로명려어 정의어 설계)

  • 신봉희;이필재;신인철
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.31B no.10
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    • pp.92-98
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    • 1994
  • In this paper, each step of microprogramming was discussed using a microprogrammable machine that would grasp the characteristics of the microprogram in close relation to the hardwares and microinstruction definable language which make an effective microcode. This was proposed for an environment which minimizes costs.

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A Study on Relations Between Alliance Forms and Firm's Characteristics in Korean Semiconductor Industry to Prevent Trade Disputes (통상 마찰에 대응하기 위한 한국 반도체산업의 제휴형태와 기업특성의 관계에 관한 연구)

  • Jeong, Jong-Sik
    • International Commerce and Information Review
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    • v.10 no.3
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    • pp.369-389
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    • 2008
  • The purpose of this paper is to study on relations between alliance types and firm's characteristics in Korean semiconductor industry to prevent trade disputes. The recognition of firms' business strategies tend to be subjective and there is a limitation to use the guiding principles due to subjectivity. If there are additional guiding principles which view strategic alliances in relation to more objective characteristics associated with firms, such as their size, function, scope, and location, they will be useful tools for executives and managers in their business practices. We analyze strategic alliances how firms; external characteristics become decision factors for selecting appropriate forms of strategic alliances. Previous research works with focus on alliance forms are reviewed, then an analytical framework is described with certain categorization of firms' characteristics and alliance forms.

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