• Title/Summary/Keyword: Spatial boundary

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The Effective Means to Promote GPS-Based Survey for Cadastral Surveying of GPS Performance Standards and Measures (GPS기반의 효율적인 지적측량성과를 위한 측량기준 및 방안에 대한 연구)

  • Ahn, Jong Soon;Kang, Joon Mook;Yun, Hee Cheon
    • Journal of Korean Society for Geospatial Information Science
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    • v.21 no.1
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    • pp.65-75
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    • 2013
  • In this study, one of the main aims is to build up a technical foundation for promoting the cadastral resurvey effectively and to improve the accuracy of cadastral surveying is to make use of precise surveying techniques in allowance of position errors as reference accuracy in cadastral resurvey, which is proper to obtain the sufficient accuracy of the cadastral control points, and parcel boundary points by introducing the GNSS-based surveying techniques on cadastral survey. In detail, the existing procedures and outcomes of cadastral survey were compared and analyzed for suggesting a better survey technique than that of the other techniques in a variety of aspects of capability of cadastral survey. The new skills and supports could be upmost importance when doing cadastral survey. What's more, essentially, 'The Measurement Department' makes all the efforts to establish 'The Surveying Regulations'. This could possibly apply GNSS-based surveying technique to the cadastral resurvey for the foreseeable future and this research paper suggested that how to improve absolute accuracy of cadastral reference points by means of putting to use the appropriate models of measurement further.

The Value of Performing Arts Content and Convergence Structure -Focused on Performing Arts Live Video- (공연예술콘텐츠의 가치와 융합적 구조 -공연예술실황영상을 중심으로-)

  • Young, Hur-Lan
    • The Journal of the Korea Contents Association
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    • v.16 no.1
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    • pp.241-255
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    • 2016
  • This study aims at examining the making and distribution course of performing arts and its converged form with technology and industry in terms of the Contents Promotion Act. Since the 2000s, the inter-area contents making and sharing methods have been changing the making and distribution structure of performing arts. The recent production of performing arts contents live videos extends the areas of arts creation and communication beyond the time and spatial boundaries of performing arts and changes the existing systems. The performing arts which started with nowness and spatio-temporal restriction on the premise is now creating a new platform over the spatio-temporal boundary through the live video. Performing arts, in convergence with the areas of technology and industries, expands universal approaches and shows the public value of cultural fairness at public performing arts centers. In this context, this study aims at seeking the possible extension of performing arts contents by examining how the so-called high-class performing arts such as opera, theatre and classical music combines with the visual industry.

Development of Multiscale Modeling Methods Coupling Molecular Dynamics and Stochastic Rotation Dynamics (분자동역학과 확률회전동역학을 결합한 멀티스케일 모델링 기법 개발)

  • Cha, Kwangho;Jung, Youngkyun
    • KIISE Transactions on Computing Practices
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    • v.20 no.10
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    • pp.534-542
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    • 2014
  • Multiscale modeling is a new simulation approach which can manage different spatial and temporal scales of system. In this study, as part of multiscale modeling research, we propose the way of combining two different simulation methods, molecular dynamics(MD) and stochastic rotation dynamics(SRD). Our conceptual implementations are based on LAMMPS, one of the well-known molecular dynamics programs. Our prototype of multiscale modeling follows the form of the third party implementation of LAMMPS. It added MD to SRD in order to simulate the boundary area of the simulation box. Because it is important to guarantee the seamless simulation, we also designed the overlap zones and communication zones. The preliminary experimental results showed that our proposed scheme is properly worked out and the execution time is also reduced.

Analysis on the Cultural Phenomena related to the Depiction of Women's Costume in Korean Modern Novels (한국근대소설의 여성복식에 나타난 문화현상 분석)

  • Jeon, Hyun-Sil;Hong, Na-Young
    • Journal of the Korean Society of Costume
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    • v.61 no.6
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    • pp.38-59
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    • 2011
  • This study is based on the periodical discourse of women and their costumes, described in modern novels that were published from late 1890s to the 1930s. New cultural phenomena emerged among Korean women in the period of modernization. In particular, rapid increase of jobs for women and preference for western female body shape are very noticeable phenomena that can be observed in novels of the 1930s. In addition, the symbolic meanings of female costumes are variously described in modern novels according to the periodical and spatial environment and jobs for women. The symbolic meanings are organized as 'Trophysm, Expression of sexuality, Liberation from male-dominated society, Symbolic difference between rural and urban areas, Vanity, Decadence, Mechanism tending to hide and Change of values'. And women's costumes kept changing in the boundary of 'Confliction, Coexistence and Harmonization' of traditional and western costumes. 'Confliction' phenomenon got emerged in novels published between 1900 and 1910. The resistance on traditional costumes that restricted woman's life got spread. But western female costumes as a symbol of new culture could not be generalized but accepted as high fashion. 'Coexistence' phenomenon was appeared in novels of the 1920s. At that time, the modernization for traditional costumes by female students was emerged along with trendy fashion. Also, the frequency of using western fashion items was increased in the Korean society. Therefore, it shows that western costumes in the Korean society became popularized in the coexistence with traditional costumes. 'Harmonization' phenomenon was emerged in novels of the 1930s. In the novels, the emergence of western female costumes, personal preference items, and westernized hair style implies that western costumes were absorbed into the Korean society that had kept traditional costumes.

Extraction of 3D Building Information using Shadow Analysis from Single High Resolution Satellite Images (단일 고해상도 위성영상으로부터 그림자를 이용한 3차원 건물정보 추출)

  • Lee, Tae-Yoon;Lim, Young-Jae;Kim, Tae-Jung
    • Journal of Korean Society for Geospatial Information Science
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    • v.14 no.2 s.36
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    • pp.3-13
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    • 2006
  • Extraction of man-made objects from high resolution satellite images has been studied by many researchers. In order to reconstruct accurate 3D building structures most of previous approaches assumed 3D information obtained by stereo analysis. For this, they need the process of sensor modeling, etc. We argue that a single image itself contains many clues of 3D information. The algorithm we propose projects virtual shadow on the image. When the shadow matches against the actual shadow, the height of a building can be determined. If the height of a building is determined, the algorithm draws vertical lines of sides of the building onto the building in the image. Then the roof boundary moves along vertical lines and the footprint of the building is extracted. The algorithm proposed can use the shadow cast onto the ground surface and onto facades of another building. This study compared the building heights determined by the algorithm proposed and those calculated by stereo analysis. As the results of verification, root mean square errors of building heights were about 1.5m.

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A Study on the Methodologies for Resolving Cadastral Non-Coincidence (지적불부합 토지의 정리방안에 대한 연구)

  • Jung, Young-Dong;Choi, Han-Young
    • Journal of Korean Society for Geospatial Information Science
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    • v.11 no.3 s.26
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    • pp.55-63
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    • 2003
  • Korean cadastral system is primarily based on the graphical maps, thus, map reproduction by excessive shrinkage or extension, map mishandling and imperfection of surveying techniques have created cadastral non-coincident areas, which caused public distrust as well as considerable difficulties in land administration and policy making. Therefore, in this study, the methodologies for the resolution of the non-coincident problem are presented by means of a comparative analysis between cases of the non-coincident areas. The non-coincidence caused by the mismatch of parcel boundaries can be settled by introducing a coordinate-based system namely ${\ulcorner}$Integrated Land Information System${\lrcorner}$, meanwhile, those by other reasons can be done by establishing and executing a plan that can deliver the unification of the cadasoal and the land registration systems. Governmental intention and budgetary measures for securing the project expenses are essential to make this feasible. If the comprehensive improvement project is completed, the cadastral registers that define the parcel boundary, area and ownership will recover public confidence, which in turn secures land owners' rights by promoting land markets and stabilizing land prices.

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The Trend Analysis of Vegetation Change Applied to Unsupervised Classification Over East Asia: Using the NDVI 10-day data in 1999~2010 (무감독분류 기법을 이용한 동아시아지역의 식생변화 경향분석: 1999~2010 NDVI 10-day 자료를 바탕으로)

  • Kim, Sang-Il;Han, Kyung-Soo;Pi, Kyoung-Jin
    • Journal of Korean Society for Geospatial Information Science
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    • v.19 no.4
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    • pp.153-159
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    • 2011
  • Vegetative land cover is an important variable many Earth system process, general circulation and carbon exchange model requires vegetative cover as boundary layer necessary to run model. The purpose of this study is to detect and to understand land surface change. To monitor changes of East Asia vegetation, we used NDVI 10-day MVC data derived from SPOT VEGETATION during 12 years from 1999 to 2010. Finally, according to the land cover of classified class, we performed analysis for dynamic zone(positive change zone and negative change zone), static zone in 1999, 2010. Therefore, land covers corresponding to each class have appeared change by 2010. Land cover change was confirmed by analyzing data during 12 years which appeared vegetation change of surrounding the actual desert area to east.

Implementation of Management System for Contamination Vulnerability Calibration of the Ground Water by an Object-oriented Geographic Data Model (객체지향 지리 데이터 모델에 의한 지하수의 오취약성 분석을 위한 관리시스템 구현)

  • Lee, Hong-Ro
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.2
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    • pp.101-112
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    • 2003
  • This paper designs and implements the management system that can calibrate the contamination vulnerability of the ground water, using an object oriented data model. Geographic-objects are specified by features extracted from an applicable geographic domain, and geographic-fields are defined by chemical factors extracted from each driven water. To show the topological relationships among the geographic-objects and the geographic-fields, this paper attach the weight and the ratio of the drastic model to chemical factors represented on the land use digital map and the ground water digital map. The geographic feature class, administrative boundary class, land use class and driven water class consist of a class composition hierarchy for evaluating the convenient contamination vulnerability calibration with spatial relationships among the well objects. Therefore, this management system for evaluating the contamination vulnerability can also contribute to the application of other natural environments.

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Comparison of Aerodynamic Loads for Horizontal Axis Wind Turbine (II): with and without Vertical Wind Shear Effect (수평축 풍력터빈의 공력 하중 비교 (II): 수직 전단흐름 효과의 유·무)

  • Kim, Jin;Kang, Seung-Hee;Ryu, Ki-Wahn
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.44 no.5
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    • pp.399-406
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    • 2016
  • The large scale wind turbine blades usually experience periodic change of inflow speed due to blade rotation inside the ground shear flow region. Because of the vertical wind shear, the inflow velocity in the boundary layer region is maximum at uppermost position and minimum at lowermost position. These spatial distribution of wind speeds can lead to the periodic oscillation of the 6-component loads at hub and low speed shaft of the wind turbine rotor. In this study we compare the aerodynamic loads between two inflow conditions, i.e, uniform flow (no vertical wind shear effect) and normal wind profile. From the computed results all of the relative errors for oscillating amplitudes increased due to the ground shear flow effect. Especially bending moment and thrust at hub, and bending moments at LSS increased enormously. It turns out that the aerodynamic analysis including the ground shear flow effect must be considered for fatigue analysis.

A Study on Algorithm for Computerization of Cadastral Maps (지적도면 전산화를 위한 알고리즘에 관한 연구)

  • 김충평;김감래
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.16 no.1
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    • pp.111-118
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    • 1998
  • Today Geo-Spatial Information System(GSIS) has developed and used more widely, and especially it has been more greatly asked for Land Information System as a part of GSIS. Now it has been planning and monitoring for remaking of cadastral maps by the Ministry of Government Administration and Home Affairs. But this is long term project because of the importance of itself. And then it has been needed to computerize cadastral maps for implementation of relative tasks and services. Cadastral maps have some problems; for example, map join in different scales, different administration boundary and so on. In this study General topology algorithm, Polygonization algorithm and Pseudo-topology algorithm was adapted in computerization of cadastral maps. This is called digital map. The area and shape of parcels do not change. As a result it was found that Polygonization algorithm is the best of 3 algorithm and General topology algorithm is the worst.

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