• Title/Summary/Keyword: geographical elements

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A Study on the Design of Database to Improve the Capability of Managing Offshore Wind Power Plant (해상풍력 풍력시스템의 관리능력 향상을 위한 데이터베이스 설계에 관한 연구)

  • Kim, Do-Hyung;Kim, Chang-Suk;Kyong, Nam-Ho
    • Journal of the Korean Solar Energy Society
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    • v.30 no.3
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    • pp.65-70
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    • 2010
  • As for the present wind power industry, most of the computerization for monitoring and control is based on the traditional development methodology, but it is necessary to improve SCADA system since it has a phenomenon of backlog accumulation in the applicable aspect of back-data as well as in the operational aspect in the future. Especially for a system like offshore wind power where a superintendent cannot reside, it is desirable to operate a remote control system. Therefore, it is essential to establish a monitoring system with appropriate control and monitoring inevitably premised on the integrity and independence of data. As a result, a study was carried out on the modeling of offshore wind power data-centered database. In this paper, a logical data modeling method was proposed and designed to establish the database of offshore wind power. In order for designing the logical data modeling of an offshore wind power system, this study carried out an analysis of design elements for the database of offshore wind power and described considerations and problems as well. Through a comparative analysis of the final database of the newly-designed off-shore wind power system against the existing SCADA System, this study proposed a new direction to bring about progress toward a smart wind power system, showing a possibility of a service-oriented smart wind power system, such as future prediction, hindrance-cause examination and fault analyses, through the database integrating various control signals, geographical information and data about surrounding environments.

Developing Framework Model for Economic Renewal and Exchange of Geo-Spatial Data - A Case Study of Daegu Metropolitan City - (지리공간자료의 경제적 갱신과 교환체계를 위한 모형개발 - 대구광역시를 사례로 -)

  • Nam, Hyeong-Geun;Sakong, Ho-Sang;Um, Jung-Sup
    • Journal of the Korean Association of Geographic Information Studies
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    • v.11 no.1
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    • pp.138-154
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    • 2008
  • Geo-special technologies are being adopted in variety fields since the 3rd NGIS plan that was started at 1996. However, the required system or structure to guarantee the up-to-date validity and accuracy of the geospatial data - the most fundamental elements of the technology - was not constructed yet. All the activities related to geospatial data, including topographical map and numerical base map, are all implemented in separate way; from change of geographical objects and features, data gathering, and database construction to distribution, transfer and sharing of these data. The data model that links all the activities are required that enables consistent data-flow and effective and systematic work-flow. In this study, economic data renewal and exchange method was proposed, and benefit-cost analysis was implemented by comparing the conventional work-flow to newly proposed work-flow. The case study was implemented using the model that was adopted in Daegu metropolitan city, and the model was developed by reflecting these results.

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A Study on the Formation Factors and Characters of Yi Women's Headdress in China (중국 이족(彝族) 여성 두식(頭飾)의 형성요인과 특징에 관한 연구)

  • Wang, Huiyuan;Soh, Hwangoak
    • Journal of the Korean Society of Costume
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    • v.67 no.3
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    • pp.66-80
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    • 2017
  • The headdress is one of the most important clothing characters in China, as it was used to distinguish the 55 minority groups in China. Each minority group has a unique headdress culture. Among the 55 minority groups, the Zang, the Yi, and the Miao focus their ethnic costumes on the headdress, and have a more distinctive headdress culture compared to be other nationality groups. The Yi is one of the minority groups that linvd in Southwest China. They usually lived in compact communities in Sichuan, Yunnan, and Guizhou provinces, as well as the Guangxi Zhuang Autonomous region. The total population of the Yi is the sixth largest among the 55 minority groups. Modern scholars believe that the Yi people are descendants of the ancient Qiang people, which is a group that lived in Northwest China six or seven thousand years before. It is believed that the Qiang went down to the southern part of China and allied with the aboriginals in that region, and this group of people became the Yi, Due to its long history, cultural background, and the large number of people and settlements, they have produced a unique costume culture. The women's headdress culture is considered to be the one of the most important characteristics of their costume culture. There are four forming element of the Yi women's headdress, religious faith, myths, geographical distribution and customs & festivals. The first three elements play an important role in the protection and spread of headdress, while the fourth element provides potential for the modern headdress development. Because of much influence factors, more than 100 types of Yi women headdresses have developed. Depends on categories, Yi woman headdress can be divided into kerchief, hat, fascinator and other accessories wore on the hand. This study investigated the development of the Yi women's headwear, and screened and analyzed representative Yi women accessories, such as the headscarf, hat, and fascinator. This analysis will provide basic materials for further studies of Yi women's headdress or costume.

Eclectic Trends and Characteristics in Modern Textile Design (현대 직물디자인에 나타난 절충주의적 경향과 특징)

  • Park, Nam-Sung
    • Archives of design research
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    • v.19 no.1 s.63
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    • pp.303-316
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    • 2006
  • Eclecticism, fusing and mixing heterogeneous and contrasting elements to create a new awareness of beauty, is based on diversity and pluralism, and as such fits well with the demand of the contemporaries who pursue individualization and diversification, which explains the current vogue for Eclecticism. As a precondition to grasp eclectic styles that are expressed in modern textile design, this study looks into the characteristics of eclecticism in modern art and applies the insight so gained to textile design in an attempt to understand transformations of modern textile design by considering the aesthetic effects and plastic characteristics suggested by the new trend. The result of our research indicates that the trends that characterize modern textile design can be divided into three categories as follows: 1) Mixing of high culture and low culture through cultural fusion, 2) Fusion of differing sensitivities through blending of times, 3) Blending of regional characteristics through geographical mixing. Characteristics of textile designs as influenced by these trends can be summarized as: 1) a conversion in the way textile designs are viewed, 2) increasing emphasis on the playfulness of representation and 3) multi-cultural expressions. In short, eclecticism of textile design represents a phase of modern society that is increasingly oriented toward multifacetedness and points to a direction for a new possibility of future textile designs, necessitating a continuous research along this line.

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A Study on the ecological characteristics of the 'traditional house' and how it is ecologically applied from a natural aspect (자연성에 근거한 전통주거건축의 생태학적 특성과 적용에 관한 연구)

  • 한경희;김자경
    • Korean Institute of Interior Design Journal
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    • no.25
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    • pp.236-244
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    • 2000
  • The concept of the true house' is based on the balance of a person's life and nature and represents the life in which lies an organic harmony between environment and ecology. However, humans have always been in a position of dominance over nature and with their developments have brought on much destruction and corruption to the ecosystem. With this, the position of the true house has intensified and the ecological approach of architecture has started to come into consideration as its alternative plan. Accordingly, it is essential to reconstruct and take on a new perspective of nature. The conversion to a more Oriental approach, which dwells in the adaptation and harmony of nature, is especially sufficient to the ecological aspect of architecture. From this we can realize that the ecological approach is none other than a modern interpretation of what our ancestors have lived by. In other words, an architectural concept deriving from the adaptation of climate, season, and nature-the coexistence of man and nature. From an ecological point of view, the idea of favoring nature in the traditional house can be found in the inclination of being one with nature by adapting to its geographical and preferable climate conditions. This results in the use of natural energy, the use of natural resources, the organic connection between the inner and outer natural space, and the application of nature itself. By approaching these elements from a modern point of view and applying it to the current time, we can open up the door to a more lasting human-environment based ecological position of architecture where our own climatic characteristics and traditions can be reflected in the pursuit of harmony between man and nature.

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A Basic Study on the Landscape Characteristics of Cultural Heritage Area at the Gapgot Fortification in Ganghwa island (갑곶돈 일대 문화재 지역의 경관특징에 관한 기초연구)

  • Hyun, Sang-Kyu
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.33 no.1
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    • pp.88-96
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    • 2015
  • This purpose of this study was to identify the landscape characteristics of cultural heritage area in Gapgot fortification by performing text analysis of related literature and antique maps. And accumulate modern photograph to investigate the landscape of modern. As a additionally analysis, was examined landscape of Gapgot fortification area using aerial photograph. The results were as follows. First, Gapgot fortification has the historical value as symbolic and practical gateway to Ganghwa island caused by geographical position. And historical culture resources were located in Gapgot fortification area such as through traffic, military facilities. Secondly, According to literature and antique maps, Gapgot fortification area was village and military facilities from Goryeo dynasty. The village and military facilities was expanded with Jinhae pavilion since construct Ganhwa castle. Thirdly, In modern Gapgot fortification area appear consecutive coastal landscape when entry Ganghwa bridge. But, inhibiting elements of landscape should be remedied.

Approximate Front Face Image Detection Using Facial Feature Points (얼굴 특징점들을 이용한 근사 정면 얼굴 영상 검출)

  • Kim, Su-jin;Jeong, Yong-seok;Oh, Jeong-su
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2018.05a
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    • pp.675-678
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    • 2018
  • Since the face has a unique property to identify human, the face recognition is actively used in a security area and an authentication area such as access control, criminal search, and CCTV. The frontal face image has the most face information. Therefore, it is necessary to acquire the front face image as much as possible for face recognition. In this study, the face region is detected using the Adaboost algorithm using Haar-like feature and tracks it using the mean-shifting algorithm. Then, the feature points of the facial elements such as the eyes and the mouth are extracted from the face region, and the ratio of the two eyes and degree of rotation of the face is calculated using their geographical information, and the approximate front face image is presented in real time.

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Development of Real Time Monitoring Program Using Geostatistics and GIS (GIS 및 지구통계학을 이용한 실시간 통합계측관리 프로그램 개발)

  • Han, Byung-Won;Park, Jae-Sung;Lee, Dae-Hyung;Lee, Gye-Choon;Kim, Sung-Wook
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.1046-1053
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    • 2006
  • In the large scale recent reclaiming works performed within the wide spatial boundary, evaluation of long-term consolidation settlement and residual settlement of the whole construction area is sometimes made with the results of the limited ground investigation and measurement. Then the reliability of evaluation has limitations due to the spatial uncertainty. Additionally, in case of large scale deep excavation works such as urban subway construction, there are a lot of hazardous elements to threaten the safety of underground pipes or adjacent structures. Therefore it is necessary to introduce a damage prediction system of adjacent structures and others. For the more accurate analysis of monitoring information in the wide spatial boundary works and large scale urban deep excavations, it is necessary to perform statistical and spatial analysis considering the geographical spatial effect of ground and monitoring information in stead of using diagrammatization method based on a time-series data expression that is traditionally used. And also it is necessary that enormous ground information and measurement data, digital maps are accumulated in a database, and they are controlled in a integrating system. On the abovementioned point of view, we developed Geomonitor 2.0, an Internet based real time monitoring program with a new concept by adding GIS and geo-statistical analysis method to the existing real time integrated measurement system that is already developed and under useful use. The new program enables the spatial analysis and database of monitoring data and ground information, and helps the construction- related persons make a quick and accurate decision for the economical and safe construction.

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WRF Modeling Approach for Improvement of Air Quality Modeling in the Seoul Metropolitan Region: Seasonal Sensitivity Analysis of the WRF Physics Options (수도권 대기질 모델링 정확도 향상을 위한 WRF모델링: 계절별 물리옵션 민감도 연구)

  • Jeong, Ju-Hee;Oh, Inbo;Kang, Yoon-Hee;Bang, Jin-Hee;An, Hyeyeon;Seok, Hyeon-Bae;Kim, Yoo-Keun;Hong, Jihyung;Kim, Jiyoung
    • Journal of Environmental Science International
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    • v.25 no.1
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    • pp.67-83
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    • 2016
  • In order to improve the prediction of the regional air quality modeling in the Seoul metropolitan area, a sensitivity analysis using two PBL and microphysics (MP) options of the WRF model was performed during four seasons. The results from four sets of the simulation experiments (EXPs) showed that meteorological variables (especially wind field) were highly sensitive to the choice of PBL options (YSU or MYJ) and no significant differences were found depending on MP options (WDM6 or Morrison) regardless of specific time periods, i.e. day and night, during four seasons. Consequently, the EXPs being composed of YSU PBL option were identified to produce better results for meteorological elements (especially wind field) regardless of seasons. On the other hand, the accuracy of all simulations for summer and winter was somewhat lower than those for spring and autumn and the effect according to physics options was highly volatile by geographical characteristics of the observation site.

A Study on Bicycle Route Selection Considering Topographical Characteristics (지형적 특성을 고려한 자전거 경로 선정에 관한 연구)

  • Yang, Jung Lan;Jun, Chul Min
    • Journal of Korean Society for Geospatial Information Science
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    • v.21 no.3
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    • pp.3-9
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    • 2013
  • As interest in green growth picks up, the importance of bicycles which are an environment friendly means of communication has been magnified. However, bicycle routes which are the base of bicycles are designed without considering topographic elements and thus many users are experiencing inconvenience in using bicycles. The present study presents a routing technique to select optimal routes when selecting routes in commuting to school utilizing bicycles. To this end, a formula for optimum route calculation considering slope and intersections was drawn and a method to select optimum routes by applying modified Dijkstra Algorithms was studied. According to the results, the bicycle routes for commuting to school should be selected by the shortest time rather than the shortest distances to the destination, because it required reach the destination faster. Therefore when selecting the routes, it must be based on the shortest time considering waiting time due to crosswalks or crossroads and speed variations due to slopes.