• Smart Structures and Systems
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• 제4권2호
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• pp.209-220
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• 2008

A methodology for the seismic vulnerability assessment of historical monuments is presented in this paper. The ongoing work has been conducted in Tunisia within the framework of the FP6 European Union project (WIND-CHIME) on the use of appropriate modern seismic protective systems in the conservation of Mediterranean historical buildings in earthquake-prone areas. The case study is the five-century-old Zaouia of Sidi Kassem Djilizi, located downtown Tunis, the capital of Tunisia. Ambient vibration tests were conducted on the case study using a number of force-balance accelerometers placed at selected locations. The Enhanced Frequency Domain Decomposition (EFDD) technique was applied to extract the dynamic characteristics of the monument. A 3-D finite element model was developed and updated to obtain reasonable correlation between experimental and numerical modal properties. The set of parameters selected for the updating consists of the modulus of elasticity in each wall element of the finite element model. Seismic vulnerability assessment of the case study was carried out via three-dimensional time-history dynamic analyses of the structure. Dynamic stresses were computed and damage was evaluated according to a masonry specific plane failure criterion. Statistics on the occurrence, location and type of failure provide a general view for the probable damage level and mode. Results indicate a high vulnerability that confirms the need for intervention and retrofit.

• 무역상무연구
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• 제8권
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• pp.48-83
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• 1995

• 대한지리학회:학술대회논문집
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• 대한지리학회 2002년도 춘계학술대회 요약집
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• pp.91-94
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• 2002

• 대한산업공학회지
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• 제40권6호
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• pp.568-579
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• 2014

For the commemoration of 40 years of Industrial Engineering in Korea, Ergonomics in Korea for the last 40 years are presented in this paper. Historical backgrounds, past achievements, and key historical landmarks are explained and analyzed. In addition, a keyword content analyses on the 1,005 titles from the research paper published from 1983 to 2014 are conducted to display the structural patterns of the changes of research focus of the ergonomics in Korea. Finally, some important perspectives with regard to the prospects for the future of ergonomics in Korea are also summarized.

• 대한한의학원전학회지
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• 제26권1호
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• pp.71-77
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• 2013

Objective : To clarify the features of needling method in the Zhenjiu Jiayijing, the needling depth and needling treatment time were sorted out. Method : According to the analysis, we can identify the crucial factors of the needling features. Result : Compared with the needling related content of Huangdi Neijing(黄帝内经), the historical outline of the needling development could be found and the ancient acupuncturing process was reappeared with a historical perspective. This research will provide guidance for the literature research and clinical application. Conclusion : Zhenjiu Jiayijing, also an important and valuable literature, will provide more evidence or clues for depth and treatment time of needling, which will be helpful and meaningful in clinic.

• 전기학회논문지
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• 제66권6호
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• pp.905-910
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• 2017

As the development of BESS(Battery Energy Storage System), the application of BESS in load frequency control is considered as effective method. So, KEPCO(Korea Electric Power Corporation) have installed about 236MW ESS for GF(Govner Free) function from 2014. In this paper, we implemented Simulink Model for KEPCO GF ESS and analyzed one year historical operation data generated by Simulink model and actually measured frequency data. The operation results were divided into action for maintaining SOC and frequency. In addition, we also analyzed cycle life of GF ESS using two ESS cycle life model. We concluded the ESS cycle life models are not appropriate, because Most of the SOC swing in operation results are below 10%.

• 전자통신동향분석
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• 제37권3호
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• pp.85-96
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• 2022

Recently, the blockchain technology, which can decentralize business ecosystems using secure transactions without trusted intermediaries, has been spotlighted. Full nodes play an important role in maintaining decentralization in that they independently verify transactions using their full historical transaction data. However, the storage requirement of a full node for storing historical data is continuously increasing, and thus, has become harder for users to run a full node due to the heavy price for storage costs. In this paper, we investigate research trends on reducing the costs of storing blockchain transaction data so that nodes with low storage requirements can be used in the blockchain network.

• 수완나부미
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• 제15권1호
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• pp.61-89
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• 2023

This research explores the fall of pre-independence Sultanates and its continued political, economic, and cultural influence in post-colonial Indonesia. By using qualitative and historical methods, this paper compares the Sultanates of Mataram in Yogyakarta and Al-Kadrie in Pontianak, which represent different historical paths supporting the struggle for independence during the mid-20th century. Sultan Hamid II of the Al-Kadrie was a supporter of federalism whereas Sultan Hamengkubowono IX of Yogyakarta was an advocate of the republican system. Eventually, Indonesia became a Republic, and the idea of federalism was sidelined, which led to the abolition of sultanates in the rise of the = Indonesian nation-state, except for the Sultanate of Yogyakarta. After the 1998 Reform, the current development of democracy created political opportunities for the Al-Kadrie to reclaim its authority through engagement with various civic organizations. Meanwhile, the Sultanate of Yogyakarta faces internal friction because of succession concerns.

• 한국의상디자인학회지
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• 제11권3호
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• pp.27-41
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• 2009

As for modern people, the fashion accessory plays a role in allowing the whole coordination in clothing to be highlighted, receives environmental factors in the complementary relationship with clothing, and is being progressed rapidly as well. Among accessories, it is considered to be probably significant to examine especially about the historical consideration and the transitional process in bag, which becomes a means of expressing free individuality in fashion while recognizing importance of bag, which is being developed today as a necessary article along with diverse lifestyles in each individual. Accordingly, the purpose of this study was to examine which correlation a bag comes to have with clothing according to a historical change in fashion and was changed in the transitional process of historical consideration on bag from the latter half of the medieval times to the modern times. Also, it tries to analyze on features in a form, material, kind, and color by period in a bag. Thus, the aim is to be conducive to a future qualitative research on bag Through the research process, it could be known about which a bag has been changed into diverse forms while experiencing several processes in order to conform with a flow of clothing, which is required by society according to a change in period, and about its historical significance, value, and aesthetic characteristics. It was certainly necessary for walking about with putting commodity necessary for people in it. As one of accessories that cannot be separated from clothing, it makes it available for knowing user's social standing and position and living scale, and makes it realized for the importance influence upon establishing a woman's identity.

• 방사성폐기물학회지
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• 제3권4호
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• pp.279-291
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• 2005

중저준위 방사성폐기물 천층처분시설의 처분덮개설계 및 성능평가를 위해 국내 역사시대 고분연구를 수행하였다. 처분덮개 성능과 관련된 국내외 연구현황을 조사하고 삼국시대 고분을 중심으로 봉분의 층상특성을 정리하였다. 국내 고분에 대한 봉토의 시료채취와 시료에 대한 수리전도도 측정 및 분석을 실시하였다. 고분에 대한 자연유사 연구에서 발굴조사보고서 상에 제시된 봉토의 유사판축기법의 적용, 모세관 방벽현상과 배수로를 이용한 봉분 내 습도조절 여부를 천층처분 시설설계에 활용할 수 있을 것으로 판단된다. 향후 국내 고분발굴현장이 있을 때 현장을 방문하여 필요한 자료수집과 더불어 원자력분야의 관심사와 필요사항에 대하여 국내 고고학계와의 정보교환이 이루어져야 할 것으로 판단된다.