• The Korean Journal of Archival Studies
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• no.15
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• pp.263-306
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• 2007

In genaral appraisal is process of the determining the length of the time records should be retained, and is defined as selecting records with second value. However, appraisal in boroad term includes analysis which value records have as well as selecting archival records. It means that analysis of Records value is carried and reflected in every processes of maintenance, use and disposition of records. One of characteristic in records and archives management is that records process doesn't finish as one process, but it creates and manages records repeatedly. When another records are created again after the previous process in these system, it should creates records with better value than before. It pursues positive circle system which satisfy users whenever it starts. The study reviewed how analysis of records value is reflected in Records and archival system in Korea, and analysed Public Records and Archives Act to approve it. In results the study suggests having positive circle system finally.

• Bulletin of Korea Environmental Preservation Association
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• s.402
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• pp.2-5
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• 2012

올해 리우에서는 지속가능한 성장을 위해 전 세계가 하루빨리 녹색경제로 이행할 것을 촉구했다. 녹색경제의 혈관은 생산과 유통, 그리고 소비의 선순환 구조다. 우리는 녹색공공구매로 생산과 소비의 혈액 순환을 가져왔고, 그린카드로 소비활동의 새로운 패러다임을 제시했다.

• 대학교육
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• s.171
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• pp.6-7
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• 2011

• Social Workers
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• no.4 s.48
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• pp.8-10
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• 2006

• 대학교육
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• s.134
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• pp.5-7
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• 2005

• 대학교육
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• s.173
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• pp.6-7
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• 2011

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1492-1494
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• 2015

분산전원 연계기준에 따라 변압기 1차 중성점을 접지운전시 Y-Y-3Limb, $Y-{\Delta}$결선방식은 비대칭 계통전압에 의해 순환전류가 발생된다. 이러한 순환전류는 상별 전류에 영향을 주어 보호계전기 오동작 및 전력량계 오차를 발생시킨다. 따라서 순환전류로 인한 전력계산의 문제를 해결하기 위해 신동파워이론을 만들었다. 본 이론의 핵심은 비대칭 3상 전압과 변압기 결선 및 구조에 의해 발생되는 영상 임피던스(R+jX) 해석을 통해 중성선의 순환전류를 계산하였다. 따라서 정확한 전력계산을 위해 순환전류에 의해 발생되는 상별전류를 보정하는 새로운 이론을 소개 하고자 한다.

• Journal of the Korean Institute of Telematics and Electronics D
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• v.36D no.5
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• pp.80-87
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• 1999

We propose a new recirculating fiber delay-line filter structure. In proposed system, we insert a fiber Bragg grating(FBG) into a recirculating fiber delay line and it operates as a partially reflection mirror. Therefore, the transfer function of the system is given by the recirculating delay output part and the multiple-reflected output part due to a FBG. By adjusting the parameters such as coupling coefficient, reflectivity of FBG, and gain, we can make the system operate in various filter.

• Korea Multimedia Society
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• v.16 no.1
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• pp.17-26
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• 2012

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2012.10a
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• pp.147-148
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• 2012