• Title/Summary/Keyword: Critical History

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A Study on Computational Method for Fatigue Life Prediction of Vehicle Structures (차체 구조물의 피로수명 예측을 위한 컴퓨터 시뮬레이션 방법에 관한 연구)

  • 이상범;박태원;임홍재
    • Journal of KSNVE
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    • v.10 no.4
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    • pp.686-691
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    • 2000
  • In this paper a computer aided analysis method is proposed for durability assessment in the early design stages using dynamic analysis, stress analysis and fatigue life prediction method. From dynamic analysis of a vehicle suspension system, dynamic load time histories of a suspension component are calculated. From the dynamic load time histories and the stress of the suspension component, a dynamic stress time history at the critical location is produced using the superposition principle. Using linear damage law and cycle counting method, fatigue life cycle is calculated. The predicted fatigue life cycle is verified by experimental durability tests.

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Rites of Zhou Core Values of City Building and Critical Review of Flat Conformational Analysis through Its Annotations (『주례(周禮)』 주(注)·소(疏)를 통해 논의된 도성건설(都城建設)의 핵심과 평면적 형태해석의 비판적 검토)

  • Kang, Seo-Yeon
    • Journal of architectural history
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    • v.25 no.3
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    • pp.7-22
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    • 2016
  • Of all the annotations of Rites of Zhou for 2,000 years, there is no single line of history of ore contents related to city building in its current perspective. This is because the definitive evidence of the interpretation of related phrases is regarded as top-level guidelines called "辨方正位(Byeonbang-Jeongwi)", and their specific contents have been discussed in '匠人建國(Jangin-Geonguk)'. The phrases of '匠人營國(Jangin-Yeongguk)', considered to be the key buzzword related to city building, must be reconsidered for these reasons. As such, this paper strives to analyze the system of logic formed by consistent interpretation that flowed for 2,000 years from Han to Qing dynasties, and to discover the principles of city building used in Confucian classics.

Okakura Kakuzō's Art History: Cross-Cultural Encounters, Hegelian Dialectics and Darwinian Evolution

  • Racel, Masako N.
    • Asian review of World Histories
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    • v.2 no.1
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    • pp.17-45
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    • 2014
  • Okakura Kakuz$\bar{o}$ (1863-1913), the founder of the Japan Art Institute, is best known for his proclamation, "Asia is One." This phrase in his book, The Ideals of the East, and his connections to Bengali revolutionaries resulted in Okakura being remembered as one of Japan's foremost Pan-Asianists. He did not, however, write The Ideals of the East as political propaganda to justify Japanese aggression; he wrote it for Westerners as an exposition of Japan's aesthetic heritage. In fact, he devoted much of his life to the preservation and promotion of Japan's artistic heritage, giving lectures to both Japanese and Western audiences. This did not necessarily mean that he rejected Western philosophy and theories. A close examination of his views of both Eastern and Western art and history reveals that he was greatly influenced by Hegel's notion of dialectics and the evolutionary theories proposed by Darwin and Spencer. Okakura viewed cross-cultural encounters to be a catalyst for change and saw his own time as a critical point where Eastern and Western history was colliding, causing the evolution of both artistic cultures.

Probabilistic seismic risk assessment of simply supported steel railway bridges

  • Yilmaz, Mehmet F.;Caglayan, Barlas O.;Ozakgul, Kadir
    • Earthquakes and Structures
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    • v.17 no.1
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    • pp.91-99
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    • 2019
  • Fragility analysis is an effective tool that is frequently used for seismic risk assessment of bridges. There are three different approaches to derive a fragility curve: experimental, empirical and analytical. Both experimental and empirical methods to derive fragility curve are based on past earthquake reports and expert opinions which are not suitable for all bridges. Therefore, analytical fragility analysis becomes important. Nonlinear time history analysis is commonly used which is the most reliable method for determining probabilistic demand models. In this study, to determine the probabilistic demand models of bridges, time history analyses were performed considering both material and geometrical nonlinearities. Serviceability limit states for three different service velocities were considered as a performance goal. Also, support displacements, component yielding and collapse limits were taken into account. Both serviceability and component fragility were derived by using maximum likely hood methods. Finally, the seismic performance and critical members of the bridge were probabilistically determined and clearly presented.

Trends in Korean Medical education research from 2003 to 2022 (한의학교육 연구동향 분석 : 2003-2022년 국내 연구)

  • Dowon Gwak;Minki Kim;Jisoo Kwon;Changshik YIN
    • The Journal of Korean Medical History
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    • v.36 no.1
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    • pp.89-98
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    • 2023
  • This study aimed to review trends in Korean medical education research from 2003 to 2022. A total of 60 studies were identified, with an increasing trend in publication numbers. The research topics covered various aspects of Korean medicine education, including curriculum, basic science, clinical science, teaching methods, history, and international comparisons. Text mining analysis revealed "Curriculum", "Satisfaction" and "Clinical" to be frequent terms. The study suggests that Korean medicine education research should continue to develop, given its broad scope and growing interest.

Southeast Asianist in the Digital Age

  • Hyun, Sinae
    • SUVANNABHUMI
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    • v.10 no.2
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    • pp.215-228
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    • 2018
  • The paper provides an appreciation and critical commentary on Stephen Keck's fictional product, the SEABOT. It examines the problems of regional definition, given Southeast Asia's diversity, and provides a positive gloss on this diversity. It also considers certain conceptual and methodological issues raised by SEABOT, and the advantages and disadvantages of this online platform.

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Obstructive Fibrinous Tracheal Pseudomenbrane Mimicking Tracheal Stents

  • Kim, Ju-Sang;Yu, Ji-Hyun;Kim, Yu-Seung;Kim, Il;Ahn, Joong-Hyun
    • Tuberculosis and Respiratory Diseases
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    • v.71 no.1
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    • pp.59-61
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    • 2011
  • Obstructive Fibrinous Tracheal Pseudomenbrane (OFTP) is a rarely known but potentially fatal complication of endotracheal intubation. Sudden respiratory failure shortly after extubation is not infrequent in the ICU. However, these cases are commonly diagnosed as laryngospasm, retention of secretion or laryngeal edema. A 68-year-old woman presented with a 6-day history of progressive dyspnea. She had undergone invasive ventilator care for 24 hours. The patient was discharged from the hospital with improvement after having an extubation. However, after 3 days she revisited the emergency department with progressive dyspnea. The patient was diagnosed with OFTP from the results of chest CT and bronchoscopy. This is the first case studied in detail using CT images, pulmonary function test, and bronchoscopy.

Influence of geometry and safety factor on fatigue damage predictions of a cantilever beam

  • Pecnik, Matija;Nagode, Marko;Seruga, Domen
    • Structural Engineering and Mechanics
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    • v.70 no.1
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    • pp.33-41
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    • 2019
  • The influence of two parameters on fatigue damage predictions of a variably loaded cantilever beam has been examined. The first parameter is the geometry of the cantilever beam and the weld connecting it to a rear panel. Variables of the geometry examined here include the cantilever length, the weld width on the critical cross-section and the angle of the critical cross-section. The second parameter is the safety factor, as set out by the Eurocode 3 standard. An analytical approach has been used to calculate the stresses at the critical cross-section and standard rainflow counting has been used for the extraction of the load cycles from the load history. The results here suggest that a change in the width and angle of the critical cross-section has a non-linear impact on the fatigue damage. The results also show that the angle of the critical cross-section has the biggest influence on the fatigue damage and can cause the weld to withstand fatigue better. The second parameter, the safety factor, is shown to have a significant effect on the fatigue damage calculation, whereby a slight increase in the endurance safety factor can cause the calculated fatigue damage to increase considerably.

A Study on Characteristics of Critical Regionalism Expression & Applied Method in Museum (박물관 건축공간에 있어서의 비판적 지역주의의 표현특성과 그 적용방법에 관한 연구)

  • Chae, Hyun-Ki;Park, Chan-Il
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2006.11a
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    • pp.39-43
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    • 2006
  • In recent years, local governments are interested in constructing museums of various scales in relationship to unique factors of each region regarding their positive effects on tourist industry. However, many museums have failed to reflect regional characteristics resulting uniformed, uninteresting museum architectures. This study analyzes museum architectures designed by Ando Dadao, Antoine Predock's, Charles Correa, Carlo Scarpa, and Ricardo Legorrata based on 7 criterias of Kenneth Prampton's critical regionalism theory which are natural environment, materials, light, weather, unique culture, and history. It Is hoped that this study may serve as a stopping stone towards designing museums that reflect distinctive regional identities of Korea.

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Critical Factors Affecting Successful Client Satisfaction Management of Companion Animal Hospital (반려동물병원의 고객만족경영 성공요인에 관한 연구)

  • Baik, Choong-Ki;Shin, Cheol-Ho;Kim, Bo-Young
    • Journal of Veterinary Clinics
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    • v.29 no.1
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    • pp.49-57
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    • 2012
  • Success of any business solely is dependant on how to satisfy clients in healthcare-related industry. In the short history of Korea pet-care industry, there were not many guidelines on client satisfaction management of companion animal hospitals. The studies on many pet healthcare facilities were conducted based on their cost-benefits and the advantages of medical operation within special features of the traditional hospital management system. However the companion animal hospitals recently need to improve the service quality and client closed communication in keen competition on pet healthcare market. This study explores client satisfaction management could be the new issue of the veterinary hospital business. And it finally suggests of the critical factors affecting successful client satisfaction management of companion animal hospital based on the eight case studies.