• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.6
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• pp.96-110
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• 2018

As the development of ICT has made it easier to collect various traffic information, research on creating new traffic attributes is drawing attention. Estimation and forecasts of demand and traffic volume are one of the main indicators that are essential to traffic operation, assuming that the traffic pattern at a particular node or link is repeated. Traditionally, a survey method was used to demonstrate this similarity on trip behavior. However, the method was limited to achieving high accuracy with high costs and responses that relied on the respondents' memory. Recently, as traffic data has become easier to gather through ETC system, smart card, studies are performed to identify the regularity of trip in various ways. In, this study, route-level trip data collected in Daegu metropolitan city were analyzed to confirm that individual traveler forms a spatially similar trip chain over several days. For this purpose, we newly define the concept of spatial trip regularity and assess the spatial difference between daily trip chains using the sequence alignment algorithm, Dynamic Time Warping. In addition, we will discuss the applications as the indicators of fixed traffic demand and transportation services.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.717-722
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• 2006

경제지표, 주식시세, 전자상거래 등 시각적으로 제공되는 정보 중에 정확한 숫자가 중요한 정보인 경우도 있지만 2 차 정보로서 변화의 추세나 패턴이 중요한 경우도 있다. 주식을 포함한 유가증권이나 선물거래의 경우 주로 미국식 봉차트를 사용하는데 개인투자자가 늘고 있는 우리나라 실정으로 볼때 식음을 전폐하고 전광판에 매달리는 문제점이 지적되고 있고, 전문투자자들도 시각정보를 놓치지 않기 위해 일상 업무에 소홀해지는 경우가 많다. 이러한 경우 음향정보도 함께 제공한다면 인간은 다양한 감각기관을 가지고 있기 때문에 시각정보를 주로 이용하다가도 잠시 휴식을 취하거나 다른 용무가 있을 때 청각정보를 보완적으로 사용하여 스트레스를 줄일 수 있고 명철한 판단력을 유지할 수 있으며, 경우에 따라서는 음향정보가 상황판단을 위해 더욱 효과적일 수도 있을 것으로 본다. 음향정보가 시각정보를 대체하기 보다는 2 차 정보로서 상호보완성이 목적이라면 정확한 숫자의 표현보다는 거래패턴 등을 음악적으로 표현하여 음악 감상의 기능까지 갖춘다면 시각정보와는 차별화된 음향정보의 독자성을 찾을 수 있다. 간혹 종목별 등락을 읽어주거나 중요한 매매시점에 신호음을 내는 청각적인 방법이 사용되기도 하지만 상당히 제한적이고 단순한 상태이다. 그러므로 본 연구의 진정한 개발목적은 정보성 이외에 예술적 표현을 융합하는 것이며, 시각장애인이나 네트워크 환경이 열악한 사람들도 주식투자에 있어서 평등성을 보장하여 건전한 투자문화를 형성하기 위함이다. 실시간 거래정보를 음악적으로 표현하여 업무를 보면서도 들려오는 음악을 통해 거래상황을 파악할 수 있는 연구방법으로 거래빈도는 음의 빠르기로, 거래가는 음의 높낮이, 거래량은 음의 세기, 종목은 악기의 음색으로 표현하였으며, 컴퓨터에 내장된 사운드카드를 통해 소리를 들을 수 있도록 MIDI 데이터로 변환하였다. 통계정보는 주로 한국증권선물거래소(KRX: The Korea Exchange)에서 발췌하였으며, 시뮬레이션을 위한 프로그래밍 언어로는 Cycling74 의 Max/MSP 를 사용하였다.

• Journal of the Korean earth science society
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• v.31 no.1
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• pp.71-87
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• 2010

The purpose of this study was to explore 8th-grade students' imageries of the Earth. We analyzed the middle school students' imageries about the Earth represented with words and drawings in Earth Systems Understanding (ESU, hereafter) framework. The students' imageries about 'the Earth' are vary by their experiences and prior-knowledge, which significantly impacts their imagery construction. Especially, the students' ESU were characterized into two aspects: One is a macroscopic view point based on full-objects of the Earth by indirect experiences and the other is everyday view point based on scene of the Earth surface and environment by direct experiences. Results revealed students' imageries about the Earth were impacted by visual experiences and those students' ESU were more represented by drawing as visual imagery than by words, formal language. The negative imageries were mainly represented through interactions of the Earth subsystems.

• Journal of the Korean association of regional geographers
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• v.5 no.2
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• pp.133-142
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• 1999

The wetland is very important ecologically as a habitat of diverse organisms. The purpose of this paper is to elucidate the morphogenetic environment of Jilmoe Bog found in the Odae Mountain National Park Jilmoe Bog is located in the high etchplain(1,060m) where Daebo Granite which had intruded in Jura epoch of Mesozoic era has weathered deeply and has uplifted in the Tertiary. The annual mean temperature of study area is $5.3^{\circ}C$, the annual precipitation is 2,888mm. The minimun temperature of the coldest month(january) is below $-30^{\circ}C$ and the depth of frozen soil is over 1.6m. Jilmoe bog consists of a large bog and a small bog. The length of the large bog is 63m and its width is 42m. The basal surface of Jilmoe bog is uneven. Jilmoe bog is a string bog fanned due to frost actions. In String bog, its surface is wavy with stepped dry hills and net-like troughs crossing hill slope. It seems that string bog is related to the permofrost or seasonal permofrost of cold conifer forest(taiga) zone(where the depth of frozen soil is very deep in the least in winters). String bog is a kind of thermokarst that frozen soil thaws differentially locally in declining permofrost and ground surface becomes irregular. There is turf-banked terracette of width $30{\sim}40cm$ in the headwall of small cirque-type nivation hollow formed at footslope of Maebong mountain around Jilmoe bog. This turf-banked terracette is formed by the frost growth of soil water below grass mat in periglacial climate environment. Where water is plentiful such as a nivation follow${\sim}$valley corridor and a headwall of valley, turf patterned grounds of width $30{\sim}50cm$ are found. This turf patterned ground is 'unclassified patterned ground', earth hummock. In conclusion, Jilmoe bog is a string bog of thermokarst that the relief of ground surface is irregular according to locally differentially thawing of permofrost(frozen soil). Jilmoe bog is high moor, its surroundings belongs to periglacial environment that turf-banked terracette and turf patterned ground are fanned actively.

• Proceedings of the Mineralogical Society of Korea Conference
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• 2001.06a
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• pp.143-144
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• 2001

경기육괴의 남서부에 해당하며 옥천구조대의 북쪽에 위치한 백동-홍성 일대의 충청남도 일원에는 선캠브리아기의 편마암복합체내에 초염기성암체들이 소규모 렌즈상의 암체로 이 지역에 우세한 구조선 방향인 북북동 방향으로 배열되어 산출된다. 이들 초염기성암채들이 조산대에 형성되는 알파인형이며 전형적인 상부 맨틀기원의 암석이 부분용융된 맨틀 잔여물로서 지표로의 이동과정에서 변성작용을 받아 대부분은 사문석화 혹은 활석화된 것으로 보고되어 있다. 본 연구의 주대상인 변성염기성암을 포함하는 백동지역의 초염기성암은 홍성도폭내 덕정리 편암암체 내에 주변 편마암체와 단층으로 접하면서 나타난다. 덕정리 편마암체는 주로 각섬석 화강편마암으로 구성되어있다. 백동지역의 초염기성암내에는 변성염기성암이 층상으로 협재되어 나타난다. 이들 변성염기성암은 석류석, 단사휘석, 각섬석, 사장석으로 주로 이루어진 석류석 각섬암이며 금홍석도 포함하고 있다. 많은 석류석 주변에는 사장석과 각섬석으로 이루어진 심플렉타이트가 발달되어있다. 석류석 각섬암내 심플렉타이트가 형성되지 않은 석류석 가장자리로부터 계산된 변성 온도-압력 조건은 590-72$0^{\circ}C$, 9-l0kb이며 심플렉타이트가 잘 형성된 석류석 주변부로부터는 490-$600^{\circ}C$, 4-6.3kb의 변성 온도-압력 조건이 계산되었다. 이에 반해 변성염기성암을 포함한 초염기성암체 주변에 나타나는 석류석-각섬석 화강편마암으로 부터는 570-78$0^{\circ}C$, 11.6-l6kb의 변성 온도-압력 조건을 얻었다. 석류석 각섬암에서 석류석내에 포획물로 나타나는 휘석(Xjd, 4-11)이 기질에 나타나는 휘석(Xid, 1-6)보다 높은 제이다이트 성분을 갖는다. 이는 석류석 중심부가 석류석 주변부보다 변성압력 조건이 높았을 가능성을 지시한다. 즉 연구지역의 석류석 각섬암은 주변의 각섬석 화강편마암과 같이 에콜로자이트상-상부각섬암상-고압백립암상의 점이대에 해당하는 변성작용을 받은후 초염기성암의 사문암화 작용시기에 1차 후퇴변성작용을 그리고 그후의 활석화 시기에 심플렉타이트를 형성하는 2차 후퇴변성작용을 받았다. 이러한 후퇴변성작용시기에 많은 유체가 침입하였고 그 결과 초염기성암내의 변성염기성암이 주변 화강편마암보다 후퇴변성작용을 강하게 받았을 것으로 예상된다. 변성염기성암의 변성연대를 구하기 위해 두 석류석 각석암 시료에 대해 석류석-전암 Sm-Nd 등시선 연령을 구하였다. 두 개의 석류석 각섬암으로부터 계산된 전암-석류석 연령은 297.9$\pm$5.7(2$\sigma$)Ma 그리고 268.7$\pm$3.3(2$\sigma$)Ma를 나타낸다. 석류석의 Sm-Nd 폐쇄온도가 700-75$0^{\circ}C$임을 고려할 때 두 석류석 각섬암으로부터 계산된 연대는 최고 변성작용 혹은 초기 냉각 시기를 지시할 가능성이 높다. 한편 전암의 두 동위원소 자료로부터 계산된 전암의 연령은 408Ma이다. 이러한 연구 결과는 연구지역의 석류석 각섬암이 시루리아기 후기 혹은 데본기 초기에 관입 후 석탄기 후기에서 페름기 중기에 주변 화강편마암과 함께 섭입작용을 받았을 가능성을 지시한다.

• Korean journal of applied entomology
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• v.23 no.1 s.58
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• pp.15-21
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• 1984

The virus infecting French bean (Phaseolus vulgaris L.) was identified as Bean Common Mosaic Virus(BCMV) based on the host range, symptomatology, serology, morphology of virus particles and inclusion bodies. Isolates of BCMV were obtained from seeds of P. vulgaris collected at Suweon, Jangsu and Jinju in Korea. French bean produced vein clearing, mosaic, stunting and leaf curling. Symptom of Chenopodium quinoa was local lesions on the inoculated leaves, not on the upper leaves. The electron micrograph of the virus from French bean was flexuous approximately 750nm in length. Cylindrical and pinwheel cytoplasmic inclusion bodies were observed in French bean leaf infected by BCMV. BCMV from the French bean was transmitted through seed and green peach aphid, Myzus persicae. The thermal inactivation point was $55\~60^{\circ}C$, dilution end point was $10^{-3}\~10^{-5}$ and longevity in vitro was $2\~3$ days for BCMV from French bean. The isolates of BCMV reacted positively against BCMV antiserum. The extract of BCMV infected bean leaves, Azukibean mosaic virus (AZMV) and Cowpea aphid borne mosaic virus(CaMV) also reacted with BCMV antiserum, however, BCMV and CaMV showed the spur in agar gel diffusion test.

• The Journal of the Korea Contents Association
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• v.18 no.8
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• pp.148-156
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• 2018

This study focuses on the play aspect of the existing digital games and VR games as part of a basic research for facilitating discussion on VR games. As a method for this research, the play aspect of digital games was classified based on the play theory by Johan Huizinga and Roger Caillois, followed by examination on the play characteristics of VR games according to the established classification. As a result, VR games share a significant portion of play characteristics with digital games. Nevertheless, in VR games the player is allowed unimpeded physical activity while having the HMD on and complete disconnection from the real world via new input/output devices. In the end, the transformation of play environment results in various sensory stimulation, and in turn influences the player's experiences in areas such as presence, immersion, emotional enjoyment and satisfaction. This study is expected to serve as an important indicator for studies on the characteristics of VR contents which is certain to develop in a wide range of directions in the future.

• Journal of the Korean Association of Geographic Information Studies
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• v.7 no.4
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• pp.98-108
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• 2004

The concept of community capacity is regarded as the ability of people and communities to do works associated with the determinant factors and indicators of the circumstances of socio-economic, environmental and physical contexts. Building capacity of communities to effectively analyze our problematic issues and planning of community development is often required to scrutinize current status of community of socio-economic and infrastructural capacity development with GIS. We consider community development as a planned effort to build assets that increase the capacity of communities. Spatial asset mapping is the process enabling to identify and make inventories of tangible and intangible assets. This mapping requires developing a capacity inventory that collects individual organizational and community capacities in view of human, socio-cultural, natural, financial, digital, and physical capacity. The purpose of this research is not only designed to suggest a new concept capacity building, but also proposes a more creative framework of asset-based community cap linking to parcel-based spatial asset mapping and capacity mapping process.

• Journal of the Korean Institute of Landscape Architecture
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• v.37 no.1
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• pp.1-8
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• 2009

User movement is an important factor in determining the amount of the acquired knowledge and information about space contexts. A reasonable circulation plan affects the spatial usage, space revitalization, and activity satisfaction, and is ultimately a means to increase spatial usefulness. On the other hand, a disorderly circulation system causes negative experiences due to difficulties in wayfinding. This research identified the importance of a pedestrian circulation system analyzing the correlation between the spatial configuration index and pedestrian movement, and visitors' movement in the leisure space by using Space Syntax. The research area, Ouam-ri, where numerous guests visit this designated folk village, is a typical case in which a settlement space is used as a leisure space. There was a great deal of risk that visitors would get lost while wandering through the space. Also, it is difficult to induce visitors to tour economically even though the pedestrian circulation configuration of Ouam-ri forms the natural moving line because of its typical tree structure. Additionally adjusting and to supplementing the pedestrian system is required in order for the traditional village, a settlement space, to be used as a leisure space.

• Land and Housing Review
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• v.5 no.4
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• pp.259-269
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• 2014

After global financial crisis, the ratio of household debt to GDP was decreasing in other advanced countries such as the U.S., and the U.K. and so on. But, in Korea, household debt (of which residential mortgage loan account for a large part) ratio is still increasing. This paper focuses on the scale and characteristics of households in negative housing equity (those are called House-poors in Korea), and also the socio-economic backgrounds of the formation process. In financial perspective, the problem of negative housing equity depends on financial debt repayment capability. We used DSR (Debt Service Ratio) and LTA (Loan to Asset ratio) as financial indicators to evaluate the debt repayment capability. The critical value of DSR is assumed as 40%, and LTA 100%. The socio-economic backgrounds of the House-poors are as follows : increasing households debt dependency, over lending competition of financial institutions and unreasonable loan in household economy, instability of real estate market, week regulation on mortgage loan. Finally, this paper suggests some implications about the range and the target of public intervention.