• Journal of the Society of Disaster Information
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• v.11 no.1
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• pp.89-96
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• 2015

To reduce noise inside an elevated railroad station, the vibration of the station structure should be lowered, and to establish more effective anti-vibration measures it is required that, reflecting the track-bridge-structure interaction, the transfer characteristics of vibration induced by a train is well identified. In this paper, the current status of domestic railroad stations is classified, and the vibration transfer characteristics is analyzed via measurement data from representative elevated stations. From the analysis results on the measurement data, in transferring vibration from the track to the structure, remarkable vibration reduction in higher frequency range is observed, and, in some stations, amplified response characteristics in lower frequency range is identified. Also, for stations with floating track system or TPS type, relatively greater reduction in transferred vibration is observed.

• Journal of Korean Home Economics Education Association
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• v.27 no.2
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• pp.1-33
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• 2015

This study examined the curriculum deliberation in the home economics historical literature of United State. Out of 13 literature, 9 were carried by academic federation or association and 4 were carried by individual authors. Starting from Catharine Beacher's Treatise on Domestic Economy to NASAFACS's National Standards for Family and Consumer Standards, the background of each document was introduced, curriculum contents organization was examined, and its implication was discussed. The results showed that home economics curriculum has been suggested being organised around key concepts in typical home economics areas throughout the history until the practical problem-focused curriculum organization based on critical science suggested by Majorie M. Brown in 1978. Regardless of the patterns of organization of curriculum contents, home economics pursue the common mission and aims of home economics. Another finding was that curriculum deliberation on the integration of curriculum contents was sought throughout the history.

• SUVANNABHUMI
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• v.2 no.2
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• pp.69-82
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• 2010

이 글은 미얀마의 고대 도시에서 축조된 방어장벽의 건축물에 나타나는 신앙문화에 관한 연구이며, 여러 고대 도시, 특히 쀼족(Pyu)의 도시였던 베잇따노(Beikthano), 하링(Halin), 떠예킷떠야(Thayehkittaya, Srikshetra) 등지에서 발굴된 유물, 유적을 분석하였다. 이와 함께, 미얀마의 고대 도시에 형성된 전통적 신앙세계를 해명하는데 중점을 두고자 한다. 미얀마에서는 성문, 성벽, 요새, 또는 파고다를 건축할 때에 신앙적 요소가 반드시 개입되었다. 건축물의 축조 토지의 선택에 있어서나 건축물 용도에 따른 재앙의 예방의 목적을 구현하기 위하여 신앙체계가 적용되었다. 특히, 방어 장벽(예를 들어, 성벽, 성문 등)에서 나타나는 불교경전이나 쇠못이 박힌 철판 및 각종 힌두신과 낫(정령)의 조상(彫像)은 그러한 신앙적 차원에서 도입되었던 것이다. 결론적으로 미얀마의 고대 도시에 있어서 방어 장벽의 구조물에서도 전통신앙과 힌두교 및 불교가 혼합된 신앙체계가 엿보이며, 나아가 쀼 왕국에 형성된 여러 고대 도시에서 서로 유사한 물질문화와 신앙체계가 널리 존재하고 있음이 밝혀졌다.

• Journal of the Earthquake Engineering Society of Korea
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• v.10 no.4 s.50
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• pp.77-84
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• 2006

Recently, as large structures such as high-rise building and long span bridge become lighter and more flexible, the necessity of structural control for reducing excessive dynamic response due to seismic excitation is increased. In this study, a semi-active base isolation system using Magneto-Sensitive (MS) rubbers is proposed to effectively protect structures against earthquakes. MS Rubber is a class of smart controllable materials whose mechanical properties change instantly by the application of a magnetic field. To demonstrate the performance of this device, the MS Rubber isolation system is compared to Lead-Rubber Bearing (LRB) isolation systems and judged based on computed responses to several historical earthquakes. The MS Rubber isolation system is shown to achieve notable decreases in base drifts over comparable passive systems with no accompanying increase in base shears or in accelerations imparted to the superstructure. The proposed MS Rubber system is shown to perform better than the passive isolation system.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.13 no.8
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• pp.790-796
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• 2002

In our country, historically beautiful and significant wooden architectures are preserved as the cultural properties. For a long time, however, the architectures are often exposed to rough environmental conditions, such as weathering, insect attack, etc. This may lead to deterioration of structural integrity of the architectures. Therefore, it is necessary to diagnose wooden architectures in advance. In this paper, the possibility of a subsurface-penetrating radar(SPR) fur non-destructive testing(NDT) of wooden architectures is investigated by using the three-dimensional finite-difference time-domain(FDTD) simulation and actual laboratory measurement.

• School Mathematics
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• v.13 no.2
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• pp.267-286
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• 2011

In this paper I investigated the historical developments of the algorithms for multiplication of natural numbers. Through this analysis I tried to describe more concretely what is to understand the common algorithm for multiplication of natural numbers. I found that decomposing dividends and divisors into small numbers and multiplying these numbers is the main strategy for carrying out multiplication of large numbers, and two decomposing and multiplying processes are very important in the algorithms for multiplication. Finally I proposed some implications based on these analysis.

• Proceedings of the Korea Water Resources Association Conference
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• 2010.05a
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• pp.425-429
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• 2010

우리나라에서 물관리체계를 개편하려는 노력은 오랜 역사를 가지고 있다. 물관리기본법의 추진은 1990년대 후반기의 입법부(1997년), 2000년 전반기의 시민사회(2000년~2004년), 2000년대 후반기의 행정부(2005년~2008년) 주도로 국회에 상정하였으나 실패하였다. 그러나 2009년 정치권인 입법부에서 3명의 국회의원이 물관리기본법안을 각각 대표발의를 하였다. 국회에 발의된 3개의 물관리기본법안은 기존 물관리체계의 행정적, 업무적 비효율을 개선한다는 점에서 동일한 시각에서 접근하였다. 또한 기후변화에 대한 능동적인 대응과 지속가능한 발전, 그리고 삶의 질 향상과 같은 다양한 요구를 수용하고자 하는 노력을 확인할 수 있다. 본 연구의 목적은 18대 국회에 발의된 3가지 물관리기본법안에 대한 심층적인 비교검토를 통하여 논리적인 장단점을 분석하는 것이다. 이를 위하여 3가지 법안별로 유사점과 차이점을 분석하고 통합물관리의 이론에 입각한 방향성을 파악하였다. 물관리체계의 개편은 단순히 행정조직의 구조개편이 아닌 통합물관리라는 큰 틀(big picture) 속에서 재구성되어야 한다. 본 연구에서 파악한 3가지 물관리기본법안에 대한 비교검토는 우리나라에서 미래지향적이고 효율적인 물관리구조를 조기에 정착시키는데 큰 기여를 할 것이다.

• Journal of the Earthquake Engineering Society of Korea
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• v.4 no.4
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• pp.93-104
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• 2000

적충되어 있는 다중 블록 시스템은 역사적 건물이나 문화재등에 자주 사용되고 있다. 이러한 구조시스템은 지진에 매우 취약하고, 특히 세장한 구조물인 경우에는 낮은 수준의 지반가속도에 대해서도 전도가 일어날 수 있다. 지진으로부터 이러한 구조물을 보호할 수 있는 방법중의 하나로써 지진격기받침의 사용을 들 수 있으나, 아직 격리받침이 설치되어 있는 다중블록의 거동에 대해서는 잘 알려지지 않는 실정이다. 이 논문에서는 각각 P-F 시스템, FPS, LRB 시스템이 설치되어 있을때의 세장한 강체 블록의 동적거동에 대해 살펴보았다. P-F 시스템과 FPS에서의 마찰모델은 Coulomb의 마찰법칙을 이용하였도, 상부구조물은 붙음(stick)모드와 록킹(rocking) 모드만이 존재하도록 가정하였다. 충격은 개별요소법(distinct element method, DEM)을 이용해 기술하였고, 조화입력운동에 대한 응답을 조사하였다.

• The Korean Journal of Archival Studies
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• no.36
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• pp.121-152
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• 2013

History education is of growing significance in relation with minority group's identity issue in an irreversible trend of globalization. Archives and the cultural institution can be a major player in the reforming the history education as conducted in Britain. This paper deals with the Moving Here project led by The National Archives. The vision of the project is to overcome barriers to the direct involvement of minority ethnic groups in recording their own history of migration and to ensure this history is passed on to the next generation through schools. More than 200,000 digitised images and documents in the Moving Here have been selected from the 28 content partners' collections. In addition, TNA and the regional partners worked with minority ethnic groups to record their culture and stories. In doing so, real and lasting relation between the community and the ethnic groups has developed. The outputs of the project such as films and stories were distributed free for regional schools. The School section of the Moving Here provides a range of education resources. One of the most impressive outcome of the project is the minority's desire to have their own archives for identity and self-esteem.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.37 no.1
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• pp.12-22
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• 2019

This study derived the design aspects by carrying out the case study of Neunggok prehistoric remains park, Ansansingil historic park and Yongjuk historic park to which are taken measures to preserve undesignated cultural heritages after studying the related laws & regulations and the systems as the design conditions of historic park preserving buried cultural heritages. The results of the study are as follows. First, according to the laws & regulations related to the historical parks, the historic sites should be preserved and utilized at the same time and can have history-related facility spaces, squares, rest spaces, exercise spaces, education & culture space, and convenience spaces. Second, by the space organization and the circulation system emphasizing only the preservation of buried cultural heritages, the feature-preservation space and the functional space are separated and due to not accepting the usage behavior considering peripheral land use, the effectiveness of the historical park was low. Third, the passive feature-preservation methods such as the preservation of the exposed site in architectural methods, the reproduction of the dugout hut, and the planting Royal azaleas or displaying stone after covering up the location of the pit dwellings with soil and the usage mainly for viewing have weakened the identity of the historical park. Fourth, the fence preventing users' access interferes experiencing the features, and the vertical structure protecting the upper part of the exposed features has overwhelmed the landscape of the historical parks. Fifth, it was difficult to figure out the feature space only by the texts mainly on terminologies and the excavation photographs presented on the information signs which introduce the buried cultural heritages.