• Title/Summary/Keyword: catastrophic event

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Remote monitoring of urban and infrastructural areas

  • Bortoluzzi, Daniele;Casciati, Fabio;Elia, Lorenzo;Faravelli, Lucia
    • Earthquakes and Structures
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    • v.7 no.4
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    • pp.449-462
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    • 2014
  • Seismically induced structural damage, as well as any damage caused by a natural catastrophic event, covers a wide area. This suggests to supervise the event consequences by vision tools. This paper reports the evolution from the results obtained by the project RADATT (RApid Damage Assessment Telematics Tool) funded by the European Commission within FP4. The aim was to supply a rapid and reliable damage detector/estimator for an area where a catastrophic event had occurred. Here, a general open-source methodology for the detection and the estimation of the damage caused by natural catastrophes is developed. The suitable available hazard and vulnerability data and satellite pictures covering the area of interest represent the required bits of information for updated telematics tools able to manage it. As a result the global damage is detected by the simple use of open source software. A case-study to a highly dense agglomerate of buildings is discussed in order to provide the main details of the proposed methodology.

Between Two Deaths: Representation of the 1968 Huế Massacre 1968 in "Song for the Dead" of Trịnh Công Sơn

  • Anh, Lo Duc
    • SUVANNABHUMI
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    • v.12 no.1
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    • pp.143-156
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    • 2020
  • The 1968 Huế Massacre is a horrifying event rarely mentioned today in Vietnamese history and mass media. It is forgotten perhaps because it is simply indescribable. This study reads a song by Vietnamese musician Trịnh Công Sơn, where he attempted to chronicle the catastrophic images of the massacre. We use the notion of symbolic death in psychoanalysis to interpretation of the song, and shed a new light on how it captured this historical event which eludes understanding.

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Design consideration for protecting fuel tank explosion (항공기 연료탱크 폭발 방지를 위한 설계 방안 연구)

  • Kim, Seung-kyem
    • Journal of Aerospace System Engineering
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    • v.6 no.1
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    • pp.7-12
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    • 2012
  • Fuel tank design requires special care because tank explosion can cause catastrophic event with high possibility as shown in accident of TWA 800. In this study, cause of fuel tank explosion was reviewed and several design considerations to minimize explosion possibility were introduced.

Recovery of aquatic insect communities after a catastrophic flood in a Korean stream

  • Lee, Hwang-Goo;Bae, Yeon-Jae
    • Animal cells and systems
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    • v.15 no.2
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    • pp.169-177
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    • 2011
  • In August 2002, a heavy rainfall (445 mm in total for 5 consecutive days) resulted in a catastrophic flood, and it completely washed away the benthic fauna from the mainstream channel of the Gapyeong stream, a typical mid-sized stream in the central Korean peninsula. This study was to investigate the recovery patterns of aquatic insect communities that were damaged by the flood. Aquatic insects were sampled quantitatively using a Surber sampler ($50{\times}50$ cm, 1 riffle and 1 pool/run habitats per site) from three sites (4th-6th order) of the Gapyeong stream prior to 2000 and seasonally after the flood event from 2003 to 2006. Before the flood in the reference year (2000), a total of 77 species of aquatic insects were collected, whereas after the flood 47 species (2003), 51 species (2004), 64 species (2005) and 55 species (2006) were collected from the whole sampling sites. The aquatic insect density decreased to 26.85% (2003), 90.25% (2004), 52.53% (2005) and 54.95% (2006) of that recorded in the reference year. Although approximately 70% of the aquatic insect fauna has recovered since the flood event, the species composition in the most recent year differed substantially (similarity ca. 50%). On the other hand, the compositions of functional groups have not significantly changed. Aquatic insect communities at the riffle sites were affected more profoundly than those at the pool/run sites. The aquatic insect communities at the upstream site recovered more rapidly than those at the downstream sites.

Evaluation of Adhesive Bonding Quality by Acoustic Emission (음향방출시험에 의한 복합 재료 접합부의 비파괴평가)

  • Lee, J.O.;Lee, J.S.;Yoon, U.H.;Lee, S.H.
    • Journal of the Korean Society for Nondestructive Testing
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    • v.16 no.2
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    • pp.79-85
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    • 1996
  • Prediction of fatigue life and monitoring of fracture process for adhesively bonded CFRP composites joint have been investigated by analysis of acoustic emission signals during the fatigue and tension tests. During fatigue test, generated acoustic emission is related to stored elastic strain energy. By results of monitoring of AE event rate, fatigue process could be divided into two regions, and boundaries of two regions, fatigue cycles of the initiation of fast crack growth, were 70-80% of fatigue life even though the fatigue life were highly scattered from specimen to specimen. The result shows the possibility of predicting catastrophic failure by acoustic emission monitoring.

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War as Catastrophe: Jacques Callot's "Miseries of War" as Moral Meditation

  • Levine, Michael;Taylor, William
    • The Journal of Art Theory & Practice
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    • no.13
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    • pp.157-184
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    • 2012
  • This essay examines Jacques Callot's Les Grandes Mis$\grave{e}$res et Malheurs de la Guerre (1633) as a moral meditation on war as catastrophe. It also uses Callot's Miseries to reflect on the nature of catastrophe as such, particularly as "An event producing a subversion of the order or system of things." As such, catastrophe refers less to nature or the natural gone awry, than it does to the abnegation or suspension of moral aspects of human nature. More than a reflection on war as catastrophe, and catastrophe as fundamentally moral, Callot's Miseries are a timeless meditation on aspects of the human condition; or on human beings in what amounts to state of nature-as evidenced in times of disaster. Such reflection, again, does not by itself imply that all war-even when catastrophic-is unnecessary, let alone necessarily unjust. But it does suggest that artistic engagement with war understood as catastrophic, may yield insights into human nature that are as important to human self-understanding as those represented in artistic subject matter that is more quotidian.

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Numerical Modeling for Effect on Bund Overtopping Caused by a Catastrophic Failure of Chemical Storage Tanks (저장시설의 순간 전량 방출 시 방류벽의 월파 효과에 대한 수치모델링)

  • Min, Dong Seok;Phark, Chuntak;Jung, Seungho
    • Korean Chemical Engineering Research
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    • v.57 no.1
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    • pp.42-50
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    • 2019
  • As the industry develops in Korea, the use of hazardous chemicals is increasing rapidly and chemical accidents are increasing accordingly. Most of the chemical accidents are caused by leaks of hazardous chemicals, but there are also accidents in which all the substances are released instantaneously due to sudden high temperature/pressure or defection of the storage tanks. This is called catastrophic failure and its frequency is very low, but consequence is very huge when it occurs. In Korea, there were 15 casualties including three deaths due to catastrophic rupture of water tank in 2013, and 64 instances of failures from 1919 to 2004 worldwide. In case of catastrophic failure, it would be able to overflow outside the bund that reduces the evaporation rate and following consequence. This incident is called overtopping. Overseas, some researchers have been studying the amount of external overflow depending on bund conditions in the event of such an accident. Based on the previous research, this study identified overtopping fraction by condition of bund in accordance with Korea Chemicals Controls Act Using CFD simulation. As a result, as the height increases and the distance to the facility decreases while meeting the minimum standard of the bund capacity, the overtopping effect has decreased. In addition, by identifying the effects of overtopping according to atmospheric conditions, types of materials and shapes of bunds, this study proposes the design of the bund considering the effect of overtopping caused by catastrophic failure with different bund conditions.

Medical treatment of dissecting aortic aneurysm: report of a case (박리성 대동맥류의 보존적 치료 1례 보)

  • 김병열
    • Journal of Chest Surgery
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    • v.17 no.4
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    • pp.687-690
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    • 1984
  • Aortic dissection, a condition characterized by hemorrhage into the media and variable extension along the length of the aorta, has long been recognized as a catastrophic Cardiovascular event. Recent developments in diagnostic and therapeutic skills have improved the prognosis considerably, but there is still controversy as to how cases should be managed. We experienced a case of dissecting aortic aneurysm [DeBakey Type III ], which were managed using intensive medical treatment. The period of follow up was about 11 years. At last, patient was died by progression of dissection into proximal aorta and resulted in aortic insufficiency and congestive heart failure.

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Rupture of the Esophagus by Compression Air; A Case Report (압축공기에 의한 식도 파열;1례 보고)

  • 구자홍
    • Journal of Chest Surgery
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    • v.26 no.6
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    • pp.507-509
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    • 1993
  • Esophageal perforation, regardless of the etiology, is a catastrophic event. The importances of early diagnosis and an aggressive surgical approach in the management of such a potentially lethal situation are stressed, in fact the mortality rate is directly related to the interval between perforation and initiation of treatment. We experienced a rare case of esophageal rupture caused by compressed air which produce a rupture of the colon not infrequently, which was treated successfully by an aggressive surgical approach consisting of closure of the perforation and adequate drainage.

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The Ripple Effects of Climate X-Events

  • Sang-Keun Cho;Ji-Min Lee;Sang-Hyuk Park
    • International Journal of Advanced Culture Technology
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    • v.11 no.3
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    • pp.83-88
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    • 2023
  • The increasing global average temperature and the emergence of various abnormal climate phenomena are already being experienced in reality. The problems arising from climate change are expanding and becoming catastrophic, despite the efforts of various organizations to prevent them. In order to avoid climate issues from becoming black elephants, we conducted interviews with emergency planning officer from various institutions to identify potential X-events caused by climate change. The results of analyzing the anticipated X-events by these emergency planning officer revealed a chain of ripple effects associated with their occurrence. This implies that once an X-event happens, its influence is broader and more significant. Through this study, we aim to share the understanding of the ripple effects of climate X-events with many people, raising awareness of the severity of climate issues. We hope that this will serve as a starting point for more institutions, individuals, and nations to make efforts in resolving climate problems, turning X-events into opportunities rather than crises.