• The Monthly Technology and Standards
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• s.40
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• pp.43-46
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• 2005

• The Monthly Technology and Standards
• /
• s.33
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• pp.30-31
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• 2004

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.183-183
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• 2004

• The Monthly Technology and Standards
• /
• s.7
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• pp.7-13
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• 2002

• The Monthly Technology and Standards
• /
• s.37
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• pp.26-29
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• 2005

• The Monthly Technology and Standards
• /
• s.19
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• pp.5-7
• /
• 2003

• Photonics industry news
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• s.9
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• pp.62-63
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• 2002

• Journal of the Korea Concrete Institute
• /
• v.24 no.1
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• pp.71-78
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• 2012

In order to improve the shear strength of conventional pre-tensioned spun high strength concrete (PHC) pile, concrete-infilled composite PHC (ICP) pile, a PHC pile reinforced by means of shear reinforcement and infilled concrete, is proposed. Two types of specimens were cast and tested according to KS (Korean Standards) to verify the shear strength enhancement of ICP pile. Based on the test results, it was found that the KS method was not suitable due to causing shear failure of ICP pile. However, shear strength enhancement was clearly verified. The obtained shear strength of the ICP pile was more than twice that of conventional PHC pile. In addition, the shear strength of ICP pile reinforced with longitudinal reinforcement was estimated to be more than 2.5 times greater than that of conventional PHC pile. The allowable shear force of ICP pile, which was determined by the allowable stress design process, indicated a large safety factor of more than 2.9 compared to the test results.

• The Optical Journal
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• s.98
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• pp.81-85
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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. 지난호 첫 번째 연재에 이번 호에서는‘잉크젯방식의 컬러프린터와 프린터를 포함하는 복합기에서의 잉크카트리지 수명 결정방법’에 대해 소개하고자 한다.

• Proceedings of the KSME Conference
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• 2001.06d
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• pp.985-988
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• 2001

Revision and establish of KS(Korean Standards) is currently actively discussed. It is just the time for a new world class standards under the new system with WTO(World Trade Organization). This paper is a part of "Researchs on the Standards in Railway rolling stock Field", as one of KS establish projects. The aim of this study is to define the requirements of railway rolling stock-test methods for running resistance. In the former KS, there is no items matched with this purpose. Therefore a new part of KS is proposed.