• Title/Summary/Keyword: dynamic culture

검색결과 349건 처리시간 0.029초

모달시험기법을 이용한 침목플로팅궤도의 고유진동수 분석 (Natural Frequency Analysis of Sleeper Floating Track System using Modal Test Technique)

  • 최정열
    • 문화기술의 융합
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    • 제10권3호
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    • pp.833-838
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    • 2024
  • 도시철도 침목플로팅궤도(STEDEF)는 침목상자와 침목방진패드를 이용하여 침목과 콘크리트 도상을 구조적으로 분리하여 콘크리트 도상에 전달되는 진동을 감소시키는 구조이다. 최근에는 20년 이상 공용중인 침목플로팅궤도의 침목방진패드 열화가 발생하고 있다. 이에 침목방진패드에 대한 성능을 평가하기 위해 침목방진패드 발췌 후 정적 스프링강성 시험을 수행하고 있다. 해당 평가기법은 사용 중인 침목방진패드를 반드시 교체한 후 평가를 수행한다. 그러나 궤도 고유진동수는 침목방진패드 스프링강성 및 콘크리트 도상의 융기와 침하에 따라 변화할 수 있다. 본 연구에서는 궤도 고유진동수를 평가하기 위해 모달시험기법을 사용하였다. 이를 위해 실험실 규모에서 침목상자 소재, 침목방진패드 스프링강성 및 콘크리트 도상 융기 및 침하에 따른 궤도 고유진동수를 모달시험을 이용하여 측정하였다. 침목플로팅궤도 고유진동수는 침목방진패드 스프링강성 변화에 따라 직접적인 영향을 받는 것으로 분석되었다. 또한 콘크리트 도상의 융기 및 침하에 따른 고유진동수 변화도 큰 것으로 나타났다. 따라서 본 연구에서 제시한 모달시험기법을 이용하여 침목방진패드의 열화 및 뜬 침목 평가 등에 활용할 수 있을 것으로 판단된다.

Islet function within a multilayer microcapsule and efficacy of angiogenic protein delivery in an omentum pouch graft

  • McQuilling, J.P.;Pareta, R.;Sivanandane, S.;Khanna, O.;Jiang, B.;Brey, E.M.;Orlando, G.;Farney, A.C.;Opara, E.C.
    • Biomaterials and Biomechanics in Bioengineering
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    • 제1권1호
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    • pp.27-39
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    • 2014
  • We have previously described a new multilayer alginate microcapsule system, and the goals of the present study were to assess the in vitro function of islets encapsulated in its inner layer, and the angiogenic ability of FGF-1 delivered from the external layer in an omentum pouch. Following isolation and culture, islets were encapsulated in the inner core of microspheres ($500-600{\mu}m$ in diameter) with a semi-permeable poly-L-ornithine (PLO) membrane separating two alginate layers, and both unencapsulated and encapsulated islet function was assessed by a dynamic glucose perifusion. For angiogenesis experiments, one group of microcapsules without FGF-1 (control) and another (test) containing FGF-1 with heparin encapsulated in the external layer were made. One hundred microcapsules of each group were transplanted in Lewis rats (n = 5/group) and were retrieved after 14 days for assessment of angiogenesis. Glucose perifusion of unencapsulated and encapsulated islets resulted in similar stimulation indices. The release of FGF-1 resulted in increased vascular density compared to controls. In conclusion, islets encapsulated in the core of multilayer alginate microcapsules maintain functionality and the microcapsule's external layer is effective in delivery of FGF-1 to enhance graft neovascularization in a retrievable omentum pouch.

한국의 문화경관, 그 실체, 변화와 새로운 패러다임에 의한 가치 평가 (Cultural Landscape of Korea, Its Entity, Changes and Values Evaluation from New Paradigm)

  • 이창석;유영한
    • The Korean Journal of Ecology
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    • 제24권5호
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    • pp.323-332
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    • 2001
  • 문화경관은 인간의 자연자원이용과 그에 대한 자연의 반응이 조화롭게 어우러져 생긴 산물이다. 자연은 인간의 삶을 보장하기 위하여 그 생존에 필요한 자원 뿐만 아니라 생활에 필요한 자원도 공급하고 있다. 인간은 자연이 주는 이러한 혜택을 이용하여 문명화를 진전시켜 왔다. 얼마전까지 인간과 자연 사이의 관계는 조화의 관계를 유지하여 지속가능한 자원이용을 보장받아 왔고, 우리는 문화경관의 존재를 통하여 그 사실을 발견하고 있다. 그러나 급속도로 진행된 경제성장과 그것에 기인한 개발중심의 논리는 지구환경위기, 각종 자원고갈의 위기, 더 나아가 인간의 정신적 빈곤현상까지 몰고 왔다. 이러한 시점에서 인간과 자연 사이의 조화로운 관계의 전형인 문화경관을 대상으로 그 성립배경과 기능을 검토하고, 새로운 패러다임을 토대로 그 가치를 점검하는 것은 건강한 사회와 경제를 실현하기 위한 새로운 전략을 창조하는데 가치있는 정보를 제공할 수 있다. 본 연구에서는 한국의 문화경관의 성립배경을 검토하였고, 생태적, 경제적 측면에서 그것의 효용과 가치 그리고 문화전승의 장으로서 그 활용방안을 검토하였다.

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PLS (Posterior Leaf Spring) 착용이 편마비 환자의 동적 균형에 미치는 영향 (Effect of PLS (Posterior Leaf Spring) on Standing Balance in Hemiplegic Patients)

  • 김종만;이충휘;양회송
    • 한국전문물리치료학회지
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    • 제6권1호
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    • pp.15-22
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    • 1999
  • The Posterior Leaf Spring (PLS) has been used for hemiplegic patients in order to help their walking and to increase their balance function. Past studies have mainly focused on the PLS's influence on patients' walking without taking balance function into consideration. The purpose of this study was to identify the immediate effect of PLS on the standing balance in hemiplegic patients. Fifteen hemiplegic patients participated in this study: 10 men and 5 women, with an average age of 53.8 years. Standing balance was measured using a computerized dynamic posturography device under three conditions namely bare-foot standing, standing in shoes without PLS, and standing in shoes with PLS. The results were as follows: 1) The composite equilibrium scores of patients who stood in shoes only and stood in shoes with PLS were higher than those of patients who stood bare-foot. 2) There were no statistical difference in the composite equilibrium scores between the standing condition of patients who stood bare foot and that of patients who stood in shoes with PLS. In conclusion, it is not clear whether or not the PLS affects the standing balance of hemiplegic patients. Further study is required to determine the precise effect of the PLS on standing balance in hemiplegic patients who are not wearing shoes. This is particularly relevant in Korea culture where custom demands the removal of shoes when entering any house or even many restaurants.

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프랑스의 창조도시정책: 낭트의 창조도시 개발사업을 중심으로 (Creative City Policy in France: Case studies on Creative City Development Projects of Nantes)

  • 배준구
    • 한국경제지리학회지
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    • 제19권4호
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    • pp.616-629
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    • 2016
  • 이 논문은 도시재생을 통해 창조성을 살리는 도시정책을 선도적으로 추진하여 성공을 거둔 프랑스 낭트(Nantes)시의 창조도시 개발사업 사례(추진과정, 거버넌스, 성과)를 분석하여 정책적 시사점을 얻는 데 목적이 있다. 낭트는 조선소의 폐쇄로 인한 지역경제의 침체가 심화됨에 따라 창조도시사업을 통해 새로운 도시발전을 도모하였다. 낭트의 창조도시사업은 약 20년간 추진되었는데 성공적 경제전환과 함께 도시의 이미지 제고에 기여하였으며, 프랑스에서 가장 살기 좋은 도시로 평가를 받고 있다. 낭트는 창조도시사업의 추진과정에서 유럽 프로젝트 참여와 더불어 다른 도시들의 사례를 참조하고, 전문가들의 아이디어를 수용하여 낭트 고유의 모델을 모색하였다. 낭트는 창조도시사업의 추진과정에서 규모와 여건에 맞게 다른 도시들과 차별화하고, 명확한 목표와 역동적 협동 작업에 초점을 두면서 도시와 문화 프로젝트 간의 상호작용에 중점을 두었다. 또한 낭트는 쇠퇴한 지구의 재생을 위해 건물이나 공간을 창조적으로 바꾸고, 역사 문화자원을 바탕으로 고부가가치 창조산업을 창출 또는 유치하였다.

New surveillance concepts in food safety in meat producing animals: the advantage of high throughput 'omics' technologies - A review

  • Pfaffl, Michael W.;Riedmaier-Sprenzel, Irmgard
    • Asian-Australasian Journal of Animal Sciences
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    • 제31권7호
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    • pp.1062-1071
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    • 2018
  • The misuse of anabolic hormones or illegal drugs is a ubiquitous problem in animal husbandry and in food safety. The ban on growth promotants in food producing animals in the European Union is well controlled. However, application regimens that are difficult to detect persist, including newly designed anabolic drugs and complex hormone cocktails. Therefore identification of molecular endogenous biomarkers which are based on the physiological response after the illicit treatment has become a focus of detection methods. The analysis of the 'transcriptome' has been shown to have promise to discover the misuse of anabolic drugs, by indirect detection of their pharmacological action in organs or selected tissues. Various studies have measured gene expression changes after illegal drug or hormone application. So-called transcriptomic biomarkers were quantified at the mRNA and/or microRNA level by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technology or by more modern 'omics' and high throughput technologies including RNA-sequencing (RNA-Seq). With the addition of advanced bioinformatical approaches such as hierarchical clustering analysis or dynamic principal components analysis, a valid 'biomarker signature' can be established to discriminate between treated and untreated individuals. It has been shown in numerous animal and cell culture studies, that identification of treated animals is possible via our transcriptional biomarker approach. The high throughput sequencing approach is also capable of discovering new biomarker candidates and, in combination with quantitative RT-qPCR, validation and confirmation of biomarkers has been possible. These results from animal production and food safety studies demonstrate that analysis of the transcriptome has high potential as a new screening method using transcriptional 'biomarker signatures' based on the physiological response triggered by illegal substances.

Hip-Hop 패션에 관(關)한 연구(硏究) - 90 년대 New Generation의 디자인 기획(企劃)을 중심(中心)으로 - (A Study on the Hip-Hop Style - Concentrating on the Design Planning of the New Generation in the 1990' s -)

  • 주은희;조규화
    • 패션비즈니스
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    • 제2권1호
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    • pp.86-99
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    • 1998
  • The aim of this study to examine the Hip-Hop style, one of the fashion trends of the new generation in the 1990s and to come up with a design with a Hip-Hop image. As the Counterculture, Black Renaissance, Pop Star Syndrome, the importance of Hip-Hop fashion in mass culture was recognized and given a firm place as one of the major cultural trends of the 1990s. Hip-Hop fashion has a history: it originated from the Caribbean style in the 1940s and was transformed into Rude Boys style in the 1960s, Two-tone style and Rastafarians style in the 1970s. Finally it was succeeded by B-boys and Flygirls style. Hip-Hop style combines characteristics of all three styles mixed in one, which are as follows. First, Neo-Hip-Hop Fashion, Second, Hip-Hop Reggae Fashion and Third, Graffiti Fashion. Based on these three Hip-Hop images of the 19905, an attempt will be made to produce a Design Planning with a predicted 1998 fashion trend. This research provides order sheets on ready-made clothes designed for new generation in their late 10s and early 20s. Design Concept, Image Map, Fabric, color direction will be offered on the basis of an image map drawn in line with the three design concepts incorporating three sub themes of Liveliness, Modern Ethnic, and Dynamic Future. Three designs will be designed based on the following fashion themes$\ddot{o}$ Generation 'Y', Black Guys and Street Boys.

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고속철도차량 현가계요소 변위특성 연구 (A Study on the displacement characteristics of suspension elements for KTX)

  • 허현무;권성태;이찬우;김형진
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.378-382
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    • 2005
  • The opening of high speed railway upgraded our land transportation speed limit, causing lots of changes including living and culture and also paving the way for stepping up the railway technology. However, it is also true that we had a limit to adopt the existing railway system structured for 150km/h to the new structure requiring a higher speed of approximate 300km/h due to technological, based on the time and experience. More importantly, heading toward a step of operating such a high speed railway system, it has been practically and quickly proposed that the railway needs high speed railway engineering, maintenance technology of parts of the vehicles to have a stable maintenance foundation and localization of major parts. Therefore, this study was intended to research the actual displacement characteristics in runningg on an actual track for the purpose of developing the protective and maintenance technology of springs and dampers, which are core parts among suspension elements of a high speed railway vehicle. For this, it was researched the actual vehicle test and its interpretation centered on primary spring, which is used for the suspension system of a bogie, body-body dampers and body-bogie yaw damper. Also, to analyze the displacement characteristics of suspension system in the actual conditions of high speed railway vehicles, a vehicle‘s dynamic characteristics was analyzed and interpreted. At the same time, a tester for measuring the actual displacement of such suspension elements was designed and attached to actual vehicles, to measure the displacements that occur in running it on the Seoul-Busan line, one of major lines serviced by KTX. The displacement data gained from the test with actual vehicles was analyzed for its displacement distribution depending on the service sections and frequency, with which the valuable data necessary for any potential breakdown or maintenance in the future could be obtained.

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터키 메블라나 복식 분석과 현대 패션디자인에의 응용에 관한 연구 (Studies on the Analysis of the Turkish Mevelana Dress and on its Application to Fashion Design)

  • 이희현;이명옥
    • 한국의상디자인학회지
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    • 제6권2호
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    • pp.111-121
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    • 2004
  • The Mevelana sect is a spiritual Islamic group experiencing spiritual transaction with their god through a peculiar dancing as a form of religious ritual. The Mevelana, a sect of Islamic Sufism, has their head mosque in Konya in Turkey. Although Mevelana sect is regarded as heretic of Islam, it has exerted considerable influence on the Islamic religion through its peculiar religious worshiping form constituted in dancing and reciting poems. Nowadays, Turkey recognizes the Mevelana dancing as their precious cultural legacy of a long history, exerting public information efforts to give it for wider publicity of Turkey to the world. The Mevelana dress with ornament attired for the ritual dancing performance is regarded to symbolize a spiritual medium, which leads to conciliation with the eternity. The straight lines and curved line characteristic of the Mevelana dancer's trousers, skirt, jacket and such mirrors the image of the Orientals, which is in peculiar contrast with the white and gray colors of the dress with ornament. The impression of the spiritual Mevelana dressing in harmony with the dynamic dancing motion goes beyond mere a religious dressing. It is expressive of a graceful and sophisticated modern formative art, of which the mystic design gives an inspiration to the modern fashion. After Poiret, Islamic factors have emerged in the modern fashion. For instance, a hat with Arabic fashion lapel, a Fez hat of Turkish style, harem pants and such are still popular in the modern fashion. It seems probable that the Iraq War would far more activate the influence of Arabic culture to the modern fashion. By making an analysis on the religious background and formative characteristics of the Mevelana dressing, and by giving design examples on how the Mevelanan dressing has been applied to the modern fashion, this research suggests working out new designs by making a renewed application of their characteristics to the modern fashion.

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패션 커뮤니케이션 매체와 이상적 신체미(제2보)- 신체미를 중심으로 - (The Fashion Communication Media and the Beauty of Ideal Body (II)- Focusing on the Beauty of Body -)

  • 김소영;양숙희
    • 복식
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    • 제52권8호
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    • pp.41-54
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    • 2002
  • This study discusses the beauty of the ideal body shown by fashion communication media, and explains how aesthetic aspects of, the body are being expressed in contemporary fashion. The beauty of the body may be considered as the beauty of sexual, controllable or consumable object. First. the most vigorously discussed point about the body is its sexual aspect, the most outstanding of which is the voluptuous and the androgynous beauty in contemporary fashion. Second, the body is an object which has been oppressed or controlled under the name of history. morality. and rationality. The things making us regard the body itself as an aesthetic object may be considered as dynamic and functional beauty Third, the sexual instinct and the body are fetishized as consumer goods, and women's bodies are presented as comsumer objects whose most parts could be restored to exchangeable value. The consumable beauty presented in contemporary fashion is the conspicuous beauty and the decadent beauty. So far, the various aspects of the beautiful body has been considered, based on the beauty of the ideal body shown by the fashion communication media. Man exists through on his body. but it is the embodied and formed body that serves as a means to manifest his social status and cultural ties. A natural body is reformed as a cultural phenomenon in various artificial ways. Popular culture has transmitted a series of new body image by creating and reproducing symbols and images, and has made the ideal body. Now there is not only one standard for the ideal beauty in our society. The standard of the beauty has changed continuously. There has been an aesthetic sense which can represent the times during the process of those changes. The various communication media have played a role of mirror reflecting those changes. The ideal body in contemporary times is no more an abstract media to express classical beauty, but an object directly affecting us, who are living in the crisis of subjectivity and identity.