• 한국의류학회지
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• 제20권4호
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• pp.573-585
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• 1996

This study of counter-culture - the cultural background of the Jean Fashion of which express the consciousness and youthfulness of young - shows the various social, cultural developments and the direction of growth for the Jean industry Until now, the fashion trends flowed from the elite, upper-class minority to the general public : however, in the case of the Jean Fashion, it has spread inversely to the upper-class from the young people who have adopted the life-styles of the lower, middle class, working people. With the emphasis on Jean Fashion's establishment through and within a counter- culture influences, the first chapter explores the counter-culture's background theory and how fashion has metamorphisized within the counter-culture. The second chapter explores the image of the jeans within the society of the youth and the general public. Finally in the fourth chapter, this study divides the images of Jean Fashion within the youth and the general population into classifications of Feminism, Eroticism, Dismantlementation. Thus, 1 came to the conclusion that the above stated theories have had great influence on the Jean Fashion Industry. The conclusion of this study are as follows: 1 Jeans are the representative article of clothing of unisex appeal which is the core characteristic of Feminism. Feminism, which surfaced coincidentally with the emergence of jeans in the 1850s, took charge of expressing the freedoms and the wills of women. 2. Jeans, being the representative article of Eroticism, have firmly entrenched its image in the young people's wardrobe through mass media such as movies, $\mu$ic, and commercials. 3. In the 90s the tendencies of Defacement and Dismantlementation of Jeans developed. In the Dismantlement tendencies of colors, the color blue foretells of the century's coming to an end, and blue also expresses the superiority of spirit and intelligence which transcends materialism.

• 동굴
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• 제95호
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• pp.1-13
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• 2009

동굴 관광자원은 신비로움을 하나의 관광 상품으로서 제공되어져 왔으나, 관광객들의 수준과 취향이 다양화됨에 따라, 정보전달 매체로서 관람대상물의 역할은 더욱 중요성을 갖는다. 이에 온달동굴을 대상으로 지형지물에 대한 안내정보의 문제점 및 그 대책을 살펴보았다. 온달동굴의 문제점으로 타 동굴에 비해 학술적 명칭의 부재 및 설명문의 취약 등이 분석되었으며, 이에 대한 개선 방향으로서 명칭의 다양성 및 균형적 분배, 설명문의 증설, 학술적 설명문의 형식과 내용구성을 전문화 할 필요한 것으로 판단된다.

• 설비공학논문집
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• 제6권4호
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• pp.417-426
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• 1994

Filter media performance was evaluated using monodisperse NaCl particles with Differential Mobility Analyzer and Ultrafine Condensation Particle Counter. Low or medium performance filters show that the most penetrating particles size(MPPS) is around $0.3{\mu}m$ in diameter and is shifted to smaller sizes as the filter face velocity increases. However, HEPA and ULPA filters show MPPS is around $0.15{\mu}m$ in diameter and is also shifted to $0.1{\mu}m$ in diameter as the face velocity increases. In case of electret filter, the MPPS is found around $0.04{\mu}m$ region for Boltzmann charge equilibrium particles. There is a tendency of strong collection efficiency decrease for large particles as the face velocity increases on the contrary to the other filters. One of the medium performance filter efficiency was compared with filtration theory and the good agreetment was found in the experimental range.

• 한국정보통신학회논문지
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• 제11권12호
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• pp.2265-2270
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• 2007

본 논문은 IETF와 ITU-T에서 공동으로 권고하는 미디어 게이트웨이 제어 프로토콜인 MEGACO/H.248 기반의 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이의 호 처리 성능 및 기능시험 연구에 관한 내용이다. 기존 PSTN망에서 서비스되고 있는 음성 트래픽을 IP망으로 통합하는 차세대 통합네트워크의 핵심적인 구성요소로서 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이의 호 처리 성능 및 기능을 시험하기 위한 효과적인 방법 및 시험 시스템 구조에 관한 연구로, 특히 시험 환경 구축을 위해 액세스 게이트웨이에 접속되는 다수의 아날로그 라인들에 대한 가상 에뮬레이션 기능과, 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이 시험을 위해, 프로토콜의 상대역할을 에뮬레이션하는 시험기로 동작하는 효과적인 방안과 그 타당성을 논의한다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송∙미디어공학회 2018년도 추계학술대회
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• pp.114-116
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• 2018

본 논문에서는 빔-호핑 위성 전송 시스템을 위한 카운터를 기반의 연속적인 beam allocation time schedule (BATS) 변경 기법을 제안한다. 제안하는 기법은 BATS 를 처음 변경할 때, 카운터를 기반으로 gateway (GW)와 space craft (SC) 양단에서 BATS 변경 시점을 동기화 시킨다. 이 후, BATS를 계속 변경하더라도 전송 데이터 손실 없이 BATS 를 변경할 수 있다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송∙미디어공학회 2020년도 추계학술대회
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• pp.241-243
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• 2020

The high computational complexity of deep learning algorithms has led to the development of specialized hardware architectures. However, soft errors (bit flip) may occur in these hardware systems due to voltage variation and high energy particles. Many error correction methods have been proposed to counter this problem. In this work, we analyze an error correction mechanism based on repetition codes and an activation function. We test this method by injecting errors into weight filters and define an ideal error rate range in which the proposed method complements the accuracy of the model in the presence of error.

• 한국CDE학회논문집
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• 제17권1호
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• pp.54-61
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• 2012

In this paper, we performed numerical analysis to improve the heat exchange efficiency of wasted heat recovery ventilator which has a delivery and a exhaustion fan. One of the most important design factors that affect the efficiency of heat exchange is uniform counter-flow between inbound and outbound air flows. We had simulated several types of porous plates which were installed at air intake area. With plate having 45 degrees of installation angle and 15 mm diameter holes which are uniformly arranged, we can generate a uniform air flows at the area of porous media where inbound and outbound air flows are cross over. In addition, we installed a duct to reduce vortex flows at the outlet and to discharge exhaust airs rapidly. By using the proposed numerical assessment, we expect the improvement of the heat exchange efficiency of ventilator.

• 한국표면공학회지
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• 제28권1호
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• pp.46-54
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• 1995

An electrochromic(EC) cell was constructed using $WO_3$ as a electrochromic material and NiO as a counter electrode, deposited onto ITO-coated glass by the implementation of electron beam evaporation. The electrolytic media were both lithium and proton conducting polymers such as poly-acrylonitrile(PAN)-$LiClO_4$, poly-ethylene oxide(PEO)-$LiClO_4$, poly-vinyl butyral(PVB)-LiCl and PVB-H$_3$$PO_4$. Potentiodynamic cycling of the cells using PAN-$LiClO_4$, or PVB-$H_3$$PO_4$ electrolyte yielded a transmission variation of more than 40% at the wavelength of 632.8 nm within less than 10 sec response time at room temperature. These results indicate that these electrolytes, transparent in gel type, are premising for the application in large area electrochromic windows.

• 한국콘텐츠학회논문지
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• 제9권2호
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• pp.163-172
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• 2009

문화콘텐츠가 문화산업의 중심으로 부상하면서, 콘텐츠와 이를 활용한 문화산업에 대한 관심이 어느 때 보다 높다. 문화는 기억을 중심으로 이루어지며, 기억을 배제한 문화란 존재할 수 없다. 기억은 개인의 차원을 넘어 집단적, 사회적 기억으로 작용한다. 또한 문화는 기억을 담지할 매체를 필연적으로 요구하는데, 최근의 영상텍스트는 새로운 기억매체로서 주목받고 있다. 이러한 점에서 이 논문은 사회 문화적 기억으로서 '기억'의 의미를 탐색해 보고, 중국 6세대 영화를 중심으로 사회 문화적 기억과 그것을 담지해내는 영상텍스트의 기억복원의 의미를 분석하는 데 초점을 두었다. 또한 '대항기억'으로서 '개인기억'의 문화적 의의를 탐색하고, 이를 통해 기억산업과 콘텐츠의 접합 가능성을 찾아보는 시도를 모색했다. 6세대 영화를 주목한 이유는 중국 당국이 제시하는 '공식기억'에 대항하며 '지하'에서 만들어졌던 이들 영화가 국제적인 영화제에서 괄목한 만한 성과를 획득해 나가고 있기 때문이다.

• 환경위생공학
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• 제17권2호
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• pp.79-84
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• 2002

This study investigated possibility of the nitrification and denitrification in one counter-current column with the growth of biofilm attached to its media. This experiment was performed through use of the lab scale reactor composed of the column and settler. The column used was packed with the small size of plastic rings called PALL($1.5{\times}1.5{\;}cm$) with a cylindrical shape. Synthetic wastewater was used in the experiment. The loading rates of carbon (C) and total nitrogen (TN) furnished to the reactor were 0.23 to 1.0 kg COD/m3.d and 0.023 to 1.0 kg N/m3.d, respectively. Major factors controlling the removal efficiencies of COD and TN were the different air flux and volumetric loading rates of COD and TN. The experimental results obtained from this study demonstrated that the removal efficiencies of COD ranged from 90 to 95% and those of TN were from 80 to 83% under the N loading rate of 0.035 and $0.058{\;}kg{\;}N/m^3{\cdot}d$, respectively. The patterns of TN removed were distinctively different on the limit of 50cm of column in depth. This indicated that the nitrification and denitrification occurred near the surface zone of and inside the biofilm respectively, upto the 50cm of the column in depth.