• 제목/요약/키워드: KS 규격

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Effect of the Hydrophilic Treatment of Polyolefin Separator on the Electrochemical Characteristics for Ni-MH Secondary Battery (폴리올레핀계 분리막의 친수화 처리방법에 따른 Ni-MH 2차 전지의 전기화학적 특성연구)

  • Song, Li-Gyu;Lee, Yun-Sung
    • Korean Chemical Engineering Research
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    • v.51 no.2
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    • pp.263-266
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    • 2013
  • It was investigated the electrochemical characteristics of the Ni-MH battery by hydrophilic process. For adopting the Ni-MH battery in water-electrolyte, polyolefin separator was processed the hydrophilic treatment. No treatment sample did not meet KS standard (KSC 8544) but hydrophilic treatment ones satisfied with the KS standard in electrochemical characteristics, such as discharge performance, retention capacity, and cycle performance. All hydrophilic treatment samples showed similar battery performances. Among them, sulfonation treatment sample exhibited the highest value in aspect of capacity retention rate (> 88%). Furthermore, fluoride treatment sample showed the best cycle performance during battery test. This sample maintained a good cycling performance until $1,480^{th}$ cycle, which was about 3 times as compared with that of KS standard (500 cycle).

A Study on the Needs and Approaches for the “Koreanization” of Foreign Standards Referenced in the Dual-Use Standards - Including Case Study with Dual-Use Standards for Bolts - (민군통일규격에서 인용되는 해외 규격의 국내 규격화 필요성 및 그 방안에 대한 연구 - 볼트 사례를 중심으로 -)

  • 박종혁;이백준;이종희;김준원;손승현
    • Journal of the Korea Institute of Military Science and Technology
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    • v.4 no.2
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    • pp.112-121
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    • 2001
  • From the beginning of 1990s, the leading countries, especially United States, are trying to develop dual-use technology which can be used for both military and commercial purpose, and to improve the efficiency of management system in logistics and procurements. Considering the global trends, Department of Defence has been seeking for solutions as to how to reform military specifications, and launched specification unification projects. As a result of the project, a series of dual-use standards for hardwares are being developed in the form of Korea Industrial Standards(KS standards). However, there are many of foreign standards, which are not readily interpretable by users, referenced in the standards. In this study, needs for the conversion of referenced foreign standards to KS standards are reviewed and the appropriate approaches as to the conversion are suggested.

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KSC/IEC 60364(건축전기설비) 제정에 대한 개요

  • Jeong, Yong-Gi;Sin, Hyo-Seop
    • Electric Engineers Magazine
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    • v.246 no.2
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    • pp.42-47
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    • 2003
  • 우리나라의 산업표준규격인 KS 규격에 건축용 전기설비 부분은 아직까지 국가 규격이 제정되지 않았으나 세계규격중 각국의 큰 관심을 갖고 제정하는 분야가 건축용 전기설비이다. 그 이유는 건축용 전기설비는 교류 1000V이하, 직류 1500V 이하의 고객측 전기설비기준을 국제규격으로 제정하고 있어 각국의 전기공사 방법이나 가전제품 등 일반 전기기기의 제품규격에 상당한 영향을 주고 있기 때문이다.

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전력기술.정보 - 피뢰설비규격 NFPA780의 고찰 I

  • Jeong, Ji-Yeol
    • Electric Engineers Magazine
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    • s.355
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    • pp.24-27
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    • 2012
  • 우리나라는 국제 피뢰설비규격인 IEC62305시리즈를 그대로 번역, KS C IEC62305로 규격화해 2007년부터 시행해 오고 있다. 그런데 아직도 필드에서는 NFC 17-102, NFPA780과 같은 규격이 혼재하고 있는 실정이어서 실무에 혼선을 가져올 우려가 있다. 본고는 실무자들이 이들 규격을 올바로 알고 제대로 적용할 수 있도록 먼저 NFPA780규격을 수뢰부의 배치방법에 관한 사항들을 중심으로 소개한다. 그리고 이와 관련된 NFPA780과 IEC62305 - 3규격의 내용들을 비교 고찰한다.

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복합기에서의 토너 카트리지 수명 결정 방법(X5622 : 2004)

  • Korea Optical Industry Association
    • The Optical Journal
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    • s.99
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    • pp.80-83
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    • 2005
  • 흑백, 컬러 프린터(잉크젯 포함), 복합기들의 토너카트리지, 잉크카트리지에 대한 공정하고 객관적인 프린트 매수 측정을 위한 규격제정을 통해 소비자에게 정확한 정보를 제공하고자 지난해 한국광학기기협회에서는 기술표준원에서 ISO 관련 규격을 토대로 KS규격제정 용역을 받아 추진한 바 있다. 이번 호에서는 세 번째 순서로‘전자 사진 방식의 흑백 프린터와 프린터를 포함하는 복합기에서의 토너 카트리지 수명 결정 방법’에 대해 소개하고자 한다.

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Design Guide of Surface and Watertight LED Luminaires for Naval Vessels (함정용 노출.방수형 LED 조명기구의 설계 방안)

  • Kil, Gyung-Suk;Kim, Il-Kwon;Cho, Hyang-Eun;Kwon, Hyuk-Sang;Cho, Heung-Gi
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.5
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    • pp.654-660
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    • 2011
  • This paper dealt with a design guide of LED luminaires to replace the surface and watertight fluorescent lamp (FL) fixtures for naval vessels. Several standards such as Korean Industrial Standard (KS), Korea Defence Standard (KDS) and US Military Standard (MIL) were compared in terms of safety and performance of lighting fixtures. The electrical and optical characteristics like power consumption, total luminous flux, and illumination distribution of the FL fixtures were experimentally analyzed to acquire design rules for LED luminaires. Based on the results, four types of LED luminaires were fabricated, and we proposed a design guide of LED luminaires for naval vessels which save power consumption of 44~51 [%] and increase total luminous flux of 8~13 [%].

A KS Draft of the Measurement of Sound Insulation in Buildings and of Building Elements Using Sound Intensity: Laboratory Conditions (Sound Intensity를 이용한 건물부재의 차음성능 실험실 측정방법 KS 규격 제정안)

  • Jung, Sung-Soo;Kook, Chan;Kim, Sun-Woo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.11b
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    • pp.961-964
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    • 2002
  • A KS draft of the measurement of sound insulation in buildings and of building elements using sound intensity: laboratory conditions is proposed. It is based on ISO 15186-1. In order to make it as a KS, some contents are carefully tested.

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