• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.1084-1089
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• 2009

This paper presents the example of landslide triggered by the failure of earth retaining wall. Close examinations such as visual inspections and non-destructive testings revealed that the earth retaining wall does not have enough strength to resist active earth pressure and ground water pressure. This fact is proved to be a direct initiation of landslide. Numerical studies including slope stability analyses and seepage analyses were performed with material properties obtained by geophysical explorations and laboratory tests. The results of numerical studies show that the overturning of the earth retaining wall affects the slope stability, leading to landslide consequently.

• 대한건축학회논문집:계획계
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• 제34권5호
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• pp.89-96
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• 2018

Ami-dong Crematorium in Busan was established as one of the public facilities in 1929(the period of Japanese Occupation). It is the originator of Busan Yeongnak-Park(永樂公園), the funeral facilities of Busan municipality. The crematorium of Busan region was accepted at an earlier stage inside Japanese Concession in accordance with the opening a port. As Ami-dong Crematorium was constructed as a public facilities, the precedent has been maintained so far, providing a background equipped with the leading public corporation facilities in Busan area. This study was based on the expansion construction document founded by National Archives in Korea. Above all things, this research revealed the establishment and change of Busan Ami-dong Crematorium as the historical point for the formation process of recent public funeral facilities.

• 한국엔터테인먼트산업학회논문지
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• 제14권3호
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• pp.1-13
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• 2020

텐센트는 콘텐츠의 확장 및 자사의 제품과 서비스를 사용하는 고객 편의를 위해 인터넷 기반 엔터테인먼트 플랫폼을 운영하고 있는 기업이다. 2000년 이후 텐센트는 엔터테인먼트 콘텐츠 분야에서 괄목할 만한 성장과 혁신을 지속적으로 거두었다. 특히, 선도 제품·서비스를 모방, 개선하는 모방형 혁신과 인수합병을 바탕으로 텐센트는 사업 전반에 걸쳐 시장의 리더로 부각되었다. 본 연구는 이를 감안, 텐센트의 성장 전략에 관한 사례연구를 진행, 학문 및 실무적 시사점을 제안하고자 한다. 텐센트는 꾸준히 선도 기업의 온라인 게임과 SNS 등을 모방하면서 자사의 고유한 서비스를 보완하는 모방형 혁신을 통해 위챗 메신저 플랫폼 등을 기반으로 다른 제품 및 서비스로 사업 영역을 확장하고 있다. 이러한 모방형 혁신 전략은 텐센트가 다른 기업보다 더 빠른 속도로 탁월한 성장을 달성하는데 가장 효과적이었다. 아울러, 텐센트의 인수합병(M&A) 추진력은 텐센트 최고 경영진의 비전과 유연한 조직문화에 의해 강력한 기업 성장의 추동력으로 작용하며 텐센트의 엔터테인먼트 플랫폼, 게임, 금융, 전자상거래 및 글로벌 시장 확대 전반에 걸쳐 중요한 영향력을 발휘하고 있다. 본 연구는 텐센트의 성장을 이해하는데 중요한 시사점을 제안했지만 연구의 한계도 일부 있어 이들 요소는 반드시 후속 연구를 설계할 때 반영, 더 중요한 교훈을 제공해야 할 것이다.

• 한국환경복원기술학회지
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• 제6권4호
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• pp.33-42
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• 2003

Nowadays, according to the interests in the environmental infinity for the housing complex, there are various studies going on for setting general ideas and plans of them. And in some of the leading places are applied by the infinity of the natural environment. So, by this study, I analyzed the classification and the system of the infiltrated facilities for the rainwater and then suggested the problems about these and the studies for the generalization of the infiltrated facilities for the rainwater based on my real investigation of the center of infiltrated facilities for the rainwater in the Kiheung, Sangal Kum Hwa Village designed and builded by the Korea Housing Corporation for building housing complex with the infinity of the natural environment. I grasped the realities based on subject investigations and designs and found out the infiltrated facilities for the rainwater in the subject. Those are the porous concretes, pebbles and cobbles. The problems in the subject are supervision of these places and a shoddy and fault constructions by the ignorance and lack of recognition for the construction. These will be solved by reconsidering of the infiltrated facilities for the rainwater. The system of the infiltration is that the rainwater of the top of the building flows into the brook in the subject through the field of the subject. There must be going to be leading studies on the effect of these facilities and influence on the environment for the generalization of the infiltrated facilities for the rainwater of natural environment.

• 대한기계학회논문집B
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• 제36권6호
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• pp.663-668
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• 2012

비산회에 의한 보일러 튜브 마모 문제는 석탄화력 보일러 튜브 파손에 주요한 요인이 된다. 때문에 튜브 보호막이나 다공판 등이 마모 문제 완화를 위하여 사용되고 있다. 그러나 비산회에 의한 튜브마모 문제는 이런 방법을 통하여 완전히 해결될 수 없는데 이는 보일러 마다 유동 조건이 다를 뿐만아니라 예상치 못한 위치에서 국부적으로 마모가 심화될 수 있기 때문이다. 문제는 보일러 내부 비대칭 유동과 국부적 유속 증가에서 기인함으로 튜브 마모 문제의 해결에 있어서 보일러 내부 유동을 명확히 파악하는 것이 무엇 보다 중요하다 하겠다. 본 연구에서는 튜브 마모 문제에 해결을 위해 사용되는 Cold Air Velocity Technique(CAVT)에 대하여 고찰하고 하동화력 2호기 보일러에 대하여 CAVT를 실제 적용함으로써 석탄화력 보일러에 있어서 CAVT 적용 가능성을 검증하였다.

• 콘크리트학회논문집
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• 제26권5호
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• pp.635-642
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• 2014

일반적인 슬래브대신에 중공슬래브를 사용함으로 콘크리트의 무게를 줄일 수 있으며 비용도 절감시킬 수 있다. 하지만 중공슬래브는 복부에서 콘크리트단면의 감소와 전단철근을 배근할 수 없기 때문에 전단에 대한 검토가 필요하다. 본 연구에서는 프리캐스트-프리스트레스트 중공슬래브를 실험을 기반으로 전단강도 평가를 수행하였다. 전단강도실험은 6개의 실험체를 제작하고 수행하였으며, 전단강도는 현행기준인 EC2, ACI, EN1168, AASHTO로 평가하여 비교분석하였다.

• Journal of Ginseng Research
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• 제41권4호
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• pp.513-523
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• 2017

Background: Korean Red Ginseng extracts (RGE) have been suggested as effective immune modulators, and we reported that ginsenosides possess anti-inflammasome properties. However, the properties of nonsaponin components of RGE have not been well studied. Methods: To assess the roles of nonsaponin fractions (NS) in NLRP3 inflammasome activation, we treated murine macrophages with or without first or second inflammasome activation signals with RGE, NS, or saponin fractions (SF). The first signal was nuclear factor kappa-light-chain-enhancer of activated B cells (NF-${\kappa}B$)-mediated transcription of pro-interleukin (IL)-$1{\beta}$ and NLRP3 while the second signal triggered assembly of inflammasome components, leading to IL-$1{\beta}$ maturation. In addition, we examined the role of NS in IL-6 production and IL-$1{\beta}$ maturation in mice. Results: NS induced IL-$1{\beta}$ and NLRP3 transcription via toll-like receptor 4 signaling, whereas SF blocked expression. During the second signal, SF attenuated NLRP3 inflammasome activation while NS did not. Further, NS-injected mice presented increased IL-$1{\beta}$ maturation and IL-6 production. Conclusion: SF and NS of RGE play differential roles in the NLRP3 inflammasome activation. Hence, RGE can be suggested as an NLRP3 inflammasome modulator.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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• pp.352-355
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• 2008

국립대병원은 국가가 설립주체이고 엄연한 공공의료기관임에도 불구하고, 국가가 직접 운영하던 방식에서 특수법인 형태의 독립채산제로 전환되면서 사립대병원과 차이가 없이 수익성에 치중하여 운영되고 있는 실정이다. 국립대병원이 설립법에 명기된 교육, 연구, 진료 외에도 지역내에서 선도병원으로서의 3차진료기관에 합당한 공공성의 책무를 다하여야 한다고 본다. 따라서, 현재 수익성에 치중하고 있는 국립대병원에 어떠한 공공성 기능을 부여하여야 할것이가. 그리고, 지역사회내에서 다른 공공의료기관과는 어떻게 역할분담을 하여야 할것인가. 또한 국립대병원내에서 공공성과 수익성의 조화로운 강화방안은 어떻게 하여야 하는지를 다각도로 분석하여 상관관계를 살펴보고 방안을 제시하고자 한다.

• 상하수도학회지
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• 제35권5호
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• pp.335-349
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• 2021

As the frequency of seismic disasters in Korea has increased rapidly since 2016, interest in systematic maintenance and crisis response technologies for structures has been increasing. A data-based leading management system of Lifeline facilities is important for rapid disaster response. In particular, the water supply network, one of the major Lifeline facilities, must be operated by a systematic maintenance and emergency response system for stable water supply. As one of the methods for this, the importance of the structural health monitoring(SHM) technology has emerged as the recent continuous development of sensor and signal processing technology. Among the various types of SHM, because all machines generate vibration, research and application on the efficiency of a vibration-based SHM are expanding. This paper reviews a vibration-based pipeline SHM system for seismic disaster response of water supply pipelines including types of vibration sensors, the current status of vibration signal processing technology and domestic major research on structural pipeline health monitoring, additionally with application plan for existing pipeline operation system.

• 한국농공학회논문집
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• 제65권5호
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• pp.13-24
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• 2023

Due to recent climate change, the amount of rainfall during the summer season in South Korea has been decreasing, leading to an increase in areas affected by frequent droughts. Droughts have the characteristic of occurring over a wide area and being unpredictable in terms of their onset and end, necessitating proactive research to cope with them. In this study, we conducted an assessment of agricultural drought vulnerability in Taean-gun, Chungcheongnam-do, focusing on irrigation facilities and paddy fields. The assessment criteria were meteorological impact, drought occurrence status, supplementary water supply capacity, and drought response capability, with nine specific indicators selected. The drought response capability was analyzed by applying a scoring system as a key component of the agricultural drought vulnerability assessment, while the other indicators were quantified using an entropy weighting technique. The results of the assessment showed that Anmyeon-eup and Taean-eup were the safest areas, while Wonbuk-myeon, Nam-myeon, and Gonam-myeon were the most vulnerable. It is expected that the findings can be utilized to enhance understanding and proactive measures for coping with agricultural drought, and to determine the priority of drought response in different regions.