• Title/Summary/Keyword: 역원

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Stop Object Method within Intersection with Using Adaptive Background Image (적응적 배경영상을 이용한 교차로 내 정지 객체 검출 방법)

  • Kang, Sung-Jun;Sur, Am-Seog;Jeong, Sung-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.5
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    • pp.2430-2436
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    • 2013
  • This study suggests a method of detecting the still object, which becomes a cause of danger within the crossroad. The Inverse Perspective Transform was performed in order to make the object size consistent by being inputted the real-time image from CCTV that is installed within the crossroad. It established the detection area in the image with the perspective transform and generated the adaptative background image with the use of the moving information on object. The detection of the stop object was detected the candidate region of the stop object by using the background-image differential method. To grasp the appearance of truth on the detected candidate region, a method is proposed that uses the gradient information on image and EHD(Edge Histogram Descriptor). To examine performance of the suggested algorithm, it experimented by storing the images in the commuting time and the daytime through DVR, which is installed on the cross street. As a result of experiment, it could efficiently detect the stop vehicle within the detection region inside the crossroad. The processing speed is shown in 13~18 frame per second according to the area of the detection region, thereby being judged to likely have no problem about the real-time processing.

A Study on the arranged space of 'Ssangpok Checkgeori' Pictures ('쌍폭 책거리' 그림의 공간배치 연구)

  • Lee, Mi-Young;Kim, Sun-Gu
    • Archives of design research
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    • v.19 no.5 s.67
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    • pp.151-160
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    • 2006
  • When it comes to the paintings in Joseon Dynasty, landscape and a genre paintings were popular but it was Minhwa that people of every dass loved. Minhwa contained not only true meaning of a picture, but also it was simple and straighforwardly depicted. Among them, paintings in books belonging to the Joseon Dynasty (hereinafter called Checkgeori paintings) describe a small universe in which people live harmoniously in nature on the basis of a Confucian society. In addition, it shows modern philosophy in paintings and makes a feature of human life. In this paper, 'Ssangpok Checkgeori 'in Checkgeori paintings illustrates the relationships between things such as color, arrangement, place and direction. They have outstanding features such as the direction of things in composition, multiple vanishing points, a folding screen constituent and movement of viewpoints. Therefore, we come to know the painting method of 'Ssangpok Checkgeori' can be applied to modern paintings.

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Temporality of Music in Film (영화 <인셉션>에 나타난 음악의 시간성)

  • Park, Byung-Kyu
    • The Journal of the Korea Contents Association
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    • v.20 no.5
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    • pp.251-260
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    • 2020
  • In , music becomes a passage of spaces in dreams and at the same time causes a problem of temporality between spaces with different time speeds. This paper aims to examine the temporality of the music through Bergson's concept of time. The music used in the film, 《Non, je ne regrette rien》, is divided into the original version, the slowed-down version, and the rearranged version with the slowed-down, and this study visually confirmed the characteristics and similarities through practical analysis. From the perspective of Bergson's perception and memory diagram, non-diegetic music of the actual(the rearranged version) in which diegetic music of the virtual(the slowed-down version) inherent, plays the role of film music and music signal simultaneously. Also, the original version and the slowed-down version are the relationship of durational identity with qualitative changes. We looked at the position in the inverted cone diagram and applied their relationship to the diagram. It is a great achievement of this study that we explored the temporality of music in the multi-layered structure of , based on Bergson's philosophy of coexisting with the present and the past.

Heat Transfer from Single and Arrays of Impinging Water Jets(I)-Single Water Jet- (단일수분류 및 수분류군에 의한 열전달(I)-단일수분류-)

  • Eom, Gi-Chan;Lee, Jong-Su;Yu, Ji-O
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.21 no.9
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    • pp.1105-1114
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    • 1997
  • The heat transfer characteristics of free surface water jet impinging normally against a flat uniform heat flux surface were investigated. This deals with the effect of three nozzle configurations (Cone type, Reverse cone type, Vertical circular type) on the local and the average heat transfer. Heat transfer measurements were made for water jet issuing from a nozzle of which exit diameter 8 mm. The experimental conditions investigated are Reynolds number range of 27000 ~ 70000( $V_{O}$=3 ~ 8 m/s), nozzle-to-target plate distances H/D=2 ~ 10, and radial distance from the stagnation point r/D ~ = 0 ~ 7.42. For all jet velocities of H/D=2, the local Nusselt number decreased monotonically with increasing radial distance. However, for H/D from 4 to 10, and for the jet velocity $V_{O}$.geq.7 m/s for Cone type nozzle and $V_{O}$.geq.6 m/s for the other type nozzles, the Nusselt number distributions exhibited secondary peaks at r/D=3 ~ 3.5. For Reverse cone type nozzle and Vertical circular nozzle, the maximum stagnation point heat transfer and the maximum average heat transfer occurs at H/D=8. But for the Cone type nozzle, the maximum stagnation and average heat transfer occurs at H/D=10, 4, respectively. From the optimum nozzle-to-target plate distance, the stagnation and the average heat transfer reveal the following ranking: Reverse cone type nozzle, Vertical circular type nozzle, Cone type nozzle.ozzle.

Jasminum attenuatum Roxb. ex G. Don (Oleaceae): a new record to the flora of Vietnam (Jasminum attenuatum Roxb. ex G. Don: 베트남 미기록종)

  • Quang, Bui Hong;Bach, Tran The;Choudhary, Ritesh Kumar;Lee, Changyoung;Lee, Joongku
    • Korean Journal of Plant Taxonomy
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    • v.43 no.4
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    • pp.263-266
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    • 2013
  • Jasminum attenuatum Roxb. ex G. Don, a species of Oleaceae, was recently found in Kon Ka Kinh National Park of Vietnam that represents a new record to the flora of the country. The plant can be differentiated from its allied species J. latipetalum C.B. Clarke and J. simplicifolium subsp. funale (Decne) Kiew by the shape of its leaf blade, in having 5-20 flowered inflorescence, linear bracts, and obconic and glabrous calyx with shorter lobes. The present study provides the species description, illustrations, micrographs by scanning electron microscope of the pollen grains, and important taxonomic notes. Furthermore, a comparison of the diagnostic characters between this species and the above mentioned related species is made.

수의학강좌 II: 연쇄상구균과 장구균으로 인한 환경성 유방염의 감염위험요인과 통제방법

  • Nam, Hyang-Mi
    • Journal of the korean veterinary medical association
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    • v.47 no.1
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    • pp.47-54
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    • 2011
  • 최근 몇년간 국립수의과학검역원에서 조사한 바에 따르면, 국내 젖소에서 유방염을 일으키는 주된 원인균은 황색포도상구균을 제외하고는 거의 대부분 젖소의 환경으로부터 유래하는 환경성 세균에 의한 것으로 확인된 바 있다. 국내 젖소의 유방염 원인균으로 작용하고 있는 이러한 환경성 세균 중 coagulase-음성 포도상구균 (Coagulase-negative Staphylococci, CNS)과 E. coli 등의 그람 음성균이 가장 많은 비율을 차지하였지만 그 외에 Streptococcus uberis를 비롯한 환경성 연쇄상 구균과 장구균도 상당한 비율을 차지하는 것으로 조사되었으며 이에 대해서는 지난 9월호에서도 상세히 기술한 바 있다. 환경성 연쇄상구균과 장구균은 젖소에서 유선감염 및 임상형 유방염의 중요한 원인이며 환경성 연쇄상구균 중 가장 흔히 발견되는 유방염 원인체는 Streptococcus uberis 로서, 이는 국내에서뿐만 아니라 미국, 유럽, 뉴질랜드, 호주 등에서 수행된 많은 연구결과에서도 마찬가지로 나타났다. 장구균 중 가장 흔히 분리되는 균종은 E. faecium과 E. faecalis로서 검역원에서 지난 몇 년간 조사된 결과에서도 이 두 가지 균 종이 유방염우유에서 분리된 장구균의 90% 이상을 차지하였다. 이러한 환경성 연쇄상구균과 장구균은 사람과 동물의 장관, 분변, 감염된 유방 및 전체적인 목장 환경에서 분리되고 있다. 장구균은 일반적으로 환경성 연쇄상구균/장구균 유방염 감염증 중의 일부일뿐이고 장구균에 의한 유방염이 목장의 주된 문제가 되는 일은 비교적 드물다. 현재, 장구균에 의해 발생하는 유방염은 S. uberis를 통제하기 위해 사용되는 방법과 동일한 방법으로 통제할 수 있다고 여겨진다. 원인체에 상관없이 유방염을 통제하기 위한 기본적인 원칙은 유방염을 일으킬 수 있는 병원체에 유두끝이 노출되는 기회를 줄이거나 감염에 대한 젖소의 저항성을 증가시키는 두 가지 방법이다. 역으로 얘기하면, 병원체에 대한 유두끝 노출을 증가시키거나 감염에 대한 젖소의 저항성을 감소시키는 요인들은 우군 내에서 더 많은 유방염을 발생시킬 가능성이 높기 때문에 위험요인으로 간주된다. 본 고에서는 환경성 연쇄상구균에 의한 유방염과 관련이 있는 것으로 알려진 이러한 여러 가지 위험요인들에 대해 알아보고 그러한 위험요인을 줄일 수 있는 방법에 대해서도 고찰하고자 한다.

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학술자료-II - 모기매개 바이러스에 의해 유발되는 번식장애 (소 츄잔병, 아까바네병, 아이노병)

  • Jeong, Seong-Dae
    • Journal of the korean veterinary medical association
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    • v.45 no.8
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    • pp.746-757
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    • 2009
  • 국립수의과학검역원과의 공동연구과제(소 아까바네병, 츄잔병, 아이노 바이러스혼합불활화 예방약 산업화)에 의해 실시한 시험을 통하여 소 아까바네병, 츄잔병, 아이노 바이러스병에 대한 예방약인(소 츄잔병, 아까바네병, 아이노병 불활화 혼합오일백신) 면역원성 시험 및 야외에서의 적용시험 등을 실시한 결과를 요약하면 다음과 같다. 1. 혼합오일백신의 기니픽에 대한 면역원성 시험에서 아까바네 바이러스, 아이노 바이러스 및 츄잔 바이러스에 대한 중화항체가는 시험백신을 3주 간격 2회 접종한 시험구가 무접종 대조구에 비하여 높게 나타났다. 2. 혼합오일백신의 야외농장 3곳의 육성우에 대한 면역원성 시험에서 시험백신을 2회 접종 후 아까바네 바이러스의 항체가는 평균 102배, 115배 및 134배이였으며, 아이노 바이러스의 항체가는 평균 8배, 24배 및 27배로 나타났고, 츄잔 바이러스의 경우에는 3곳의 농장에서 평균 30배, 46배 및 172배로 나타났다. 3. 야외농장 2곳에서 혼합오일백신을 임신우에 2회 접종하였을 때, 중화항체가는 아까바네 바이러스가 평균 64배와 93배를 나타내었고, 아이노 바이러스의 중화항체가는 평균 70배와 96배, 츄잔 바이러스의 중화항체가는 평균 20배와 20배로 나타났다. 4. 혼합오일백신은 임신우에 대한 공격접종시험에서 시험백신을 3주 간격으로 2회 접종 후 3주째의 중화항체가는 아까바네 바이러스가 128$\sim$256배이었고, 아이노 바이러스는 64$\sim$256배로 나타났고, 츄잔 바이러스는 8$\sim$32배이었다. 공격 접종 후 부검 전의 중화항체가는 아까바네 바이러스가 16$\sim$128배로 나타났고, 아이노 바이러스는 32$\sim$128배였으며, 츄잔 바이러스는 4$\sim$16배였다. 혼합오일백신을 임신우에 3주 간격 2회 접종한 뒤 공격접종하여 채혈한 혈청의 면역원성이 무접종 대조군에 비하여 방어효과가 우수하였다. 5. 3롯트의 시험백신을 선정하여 2$\sim$7$^{\circ}C$의 냉암소에 보존하면서 보존 기간별(제조당시, 6개월, 12개월, 15개월, 18개월)로 특성시험, 무균시험 및 안전시험을 실시한 결과, 전 보존기간에 마우스 및 기니픽에 대한 안전성이 인정되었으며, 보존기간별로 시험백신의 기니픽에 대한 면역원성 시험을 실시한 결과, 기니픽의 중화항체가는 15개월까지 지속되는 것으로 나타났다.

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Real-Time Lane Detection Based on Inverse Perspective Transform and Search Range Prediction (역원근 변환과 검색 영역 예측에 의한 실시간 차선 인식)

  • Kim, S.H.;Lee, D.H.;Lee, M.H.;Be, J.I.
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2843-2845
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    • 2000
  • A lane detection based on a road model or feature all need correct acquirement of information on the lane in a image, It is inefficient to implement a lane detection algorithm through the full range of a image when being applied to a real road in real time because of the calculating time. This paper defines two searching range of detecting lane in a road, First is searching mode that is searching the lane without any prior information of a road, Second is recognition mode, which is able to reduce the size and change the position of a searching range by predicting the position of a lane through the acquired information in a previous frame. It is allow to extract accurately and efficiently the edge candidates points of a lane as not conducting an unnecessary searching. By means of removing the perspective effect of the edge candidate points which are acquired by using the inverse perspective transformation, we transform the edge candidate information in the Image Coordinate System(ICS) into the plane-view image in the World Coordinate System(WCS). We define linear approximation filter and remove the fault edge candidate points by using it This paper aims to approximate more correctly the lane of an actual road by applying the least-mean square method with the fault-removed edge information for curve fitting.

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A Study on the Place-Names in Old Maps of Andong-Bu (안동부 고지도의 유형별 수록지명 연구)

  • Bae, Mi-Ae
    • Journal of the Korean association of regional geographers
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    • v.10 no.3
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    • pp.511-538
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    • 2004
  • The aim of this paper is to investigate the characteristics of place-names in old map of Andong-Bu mapped in Chosun Dynasty. A place-name is a linguistic expression whose function is to identify a topographic feature. The place-names in old map of Andong-Bu normally involve physical, administrative, military, economic, transport, and cultural features. The cultural place-names are more meaningful in Andong-Bu which was a center of confucianism in Chosun Dynasty. The generic place-names, including cultural place-names such as school, pavilion, temple, etc., served as indicators to identify regional characteristics of Andong in the past and present. A study on the place-names, using old maps, is regarded as advisable attempt in regional approach in geography.

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Impingement heat transfer within 1 row of circular water jets: Part 2-Effects of nozzle to heated surface distance (1열 원형 충돌수분류군에 의한 열전달의 실험적 연구 (제2보, 노즐-전열면간 거리의 영향))

  • 엄기찬;이종수;김상필
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.12 no.1
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    • pp.59-66
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    • 2000
  • In a previous paper, we have examined the effects of nozzle configuration and jet to jet spacing on the heat transfer of 1 row of circular water jets. In this paper, experiments have been conducted to obtain the effects of nozzle to target plate distances on the heat transfer of 1 row of 3 jets and 1 row of 5 jets. The nozzle configurations are Cone type, Reverse cone type and Vertical circular type. Nozzle to target plate distance H was varied from 16 mm(H/D=2) to 80mm(H/D=10). For fixed value of mass flow rate and nozzle to target plate distance, larger values of average Nusselt number were obtained for the smaller jet to jet spacing. For the array of water jets, the average heat transfer was decreased slightly with increasing nozzle to target plate distance at low jet velocity of $\textrm{V}_{o}$=3 m/s. However, except for $\textrm{V}_{o}$=8 m/s of 1 row of 5 jets, it was increased with increasing nozzle to target plate distance at high jet velocity of $\textrm{V}_{o}$$\geq$6m/s. We proposed to apply the nozzle configuration of maximum average heat transfer to each nozzle to target plate distance for 1 row of 3 jets, and, it was Reverse cone type nozzle for 1 row of 5 jets(Reynolds number$\geq$36000).

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