• Title/Summary/Keyword: Local area

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A Qualitative Analysis of WRF Simulation Results of Typhoon 'Rusa' Case (태풍 루사와 관련된 WRF의 수치모의 결과 분석)

  • Kim, Jin-Won;Lee, Jae Gyoo
    • Atmosphere
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    • v.17 no.4
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    • pp.393-405
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    • 2007
  • Simulation results of WRF for the case of typhoon 'Rusa' were analyzed, comparing with observed data especially forjavascript:confirm_mark('abe', '1'); the Gangneung area around to examine its ability in numerical simulation. From the hourly precipitation time series, two peaks were found at Gangneung and Daegwallyeong, while only one peak was found from those of inland regions else. Especially, for the Yeongdong region, the first peak was directly related to spiral bands generated in front of the typhoon. Convective cells that were developed within the spiral bands moved to the eastern coastal area from the sea so that local heavy rainfall occurred in the Yeongdong region. The second peak was mainly related to the accompanying rain band of typhoon itself, topographic effect and the convergence near Gangneung area. Precipitation in Gangneung was simulated as much as about 30% of observed one. The main reason of this result came from a poor representation of wind directions in Gangneung area of WRF model. Observed wind direction was northwesterly but simulated one was nearly easterly in the area. This might shift a local heavy rainfall area downstream to the mountain area rather than the coastal area.

A Study on the Classification of Transportation Connections in Seoul Subway Adjacent Area Using Portfolio Analysis (Portfolio분석을 이용한 서울시 역세권 지하철 연계수단간 유형분류 연구 - 서울시 25개 행정구역을 중심으로 -)

  • Kim, Tae-Ho;Park, Jun-Tae;Son, Sang-Ho;Park, Je-Jin
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.35 no.6
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    • pp.1329-1338
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    • 2015
  • This article aims to develop model for the right policy Tools available from the cause analysis regarding the regional differences of subway modal split in Seoul metropolitan area. This allows two major factors of the most influential subway modal split to be proved and Portfolio Analysis is conducted. The results are as follows. Firstly, the two primary factors affecting subway modal split were shown as subway adjacent area and local line bus. It signifies that expansion of subway adjacent area, establishing the number of the subway stations and increase of local line bus are required in order to improve a diminishing subway modal split. Following that, pattern of the improvement to strengthen better subway connections are classified according to the two areas which are Concentration Area of Improvement in Subway Station Area (CAISSA) and Concentration Area of Improvement in Local Bus (CAILB). Our study revealed that Ganbukgu, Seodaemungu, Geumcheongu, and Gwanakgu were selected as the area of CAILB and Songpagu, and Junggu were selected as the area of CAISSA. As all things are considered, transportation policy makers should be taken into account in the two main factors driven by our study according to types in order to enhance the future subway share proportion.

An Application of GIS Technique to Analyze the Sales Area of Petroleum Products Distribution Facilities (GIS를 활용한 석유제품 유통기관의 판매권역 분석)

  • Kim, Min
    • Journal of the Korean Geographical Society
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    • v.39 no.3
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    • pp.360-373
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    • 2004
  • The purpose of this study is establishing how to build the area of local agents and regional offices in the oil company using GIS technique by reviewing on the spatial distribution pattern and characteristics of the sales area of oil products. Location-allocation and spatial interaction model are cooperated in order to establish sales area of petroleum products distribution system. Location-allocation model is used in the capital region where local agents are concentrated on like Kyoung-gi local agent. Spatial interaction model is used in the rest of the area in Korea to analyze the sales range of the regional offices in oil company. Each office made a big difference in registered cars and population because of the level of petroleum consumption in each sales area.

Study on Environmental Changes of River in the Suburban Area and Transition of Relations between Residents and River

  • Hiroyuki Kaga;Kumi Kawano;Yasuhiko Shimomura;Noboru Masuda
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • no.2
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    • pp.185-191
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    • 2004
  • This study dealt with the Kogi River, located in Kaizuka City, Osaka, which has experienced different improvements from the upper through the lower regions, aimed at revealing temporal relations between residents and the river, as well as probing future problems and directions regarding the river in the suburban area, by conducting a survey of local residents. The result showed that, in the upper region where nature remains in its natural state and the good water quality has been maintained, the relations between the residents and the river continued until around 1965; meanwhile in the middle region the relations have been disappearing since about 1955, and in the lower region where the stream has been repeatedly rehabilitated since 1955, there are fewer involvements of the people with the river. It also revealed that the weaker the relations between people and the river became, the larger the number of residents, even in the upper region, who became concerned over the deteriorating river environment after about 1975, and that in the middle and lower areas, about a decade earlier than in the upper area, the number of those who were aware of the environmental deterioration began to increase. Consequently, with an eye to resuming the relations between people and the river in an suburban area, their future challenges would be the space improvements depending on the environmental characteristics of the area; for example, the recovery of grassy banks for the purpose of protection in the lower region; the preservation and maintenance of many waterside woods as well as the creation of open spaces utilizing the river banks in the middle area; and throughout the whole region, the establishment of a system in which the relations between man and the river can be passed down to future generations, by utilizing the local human resources including those who know the former river landscapes or about the playing in and around the river.

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A Study on Correlation between Shrinkage City Characteristics and the Index of Building Concentration in Urban Area - Related to the Gyeongbuk Local Government - (축소도시 특성과 건축물 시가화집중도의 상관성에 관한 연구 - 경북 지자체를 대상으로 -)

  • Jeong, Tae-Wha;Kim, Hyun Soo
    • Journal of Cadastre & Land InformatiX
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    • v.52 no.2
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    • pp.35-51
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    • 2022
  • This study investigates how much building area among total building area concentrates on urban region in a local government region and then, I applies 'The Index of Building Concentration in Urban Area' for the first time in a study. The finding shows that Cities' Index is higher than counties', and also shows that a lower index is associated with a higher rate of older adult population, and is also associated with higher general budget expenditure by the local government based on the index of Building Concentration in Urban Area in Gyeongbuk Province. This study provides evidence that the Index of Building Concentration in Urban Area can be utilized in measuring shrinkage level, effectiveness of municipal finance, and in establishing shrinkage city/county planning by basic data.

Development Strategies for Rural Tourism in Nam Hae (남해군 농촌관광의 기본방향과 추진전략)

  • Choi Kuk-Hyon;Kim Ho
    • Korean Journal of Organic Agriculture
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    • v.13 no.3
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    • pp.261-279
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    • 2005
  • This study tried to examine the possibility of rural tourism policy in Nam-Hae county and to provide a strategy for development of the local economy. It was carried out on a basis that the rural tourism businesses are operated by the local government(Nam-Hae county office). In doing so, this study investigated social, cultural and geographical characteristics and the regional tourism resources of Nam-Hae area. Based on the survey, it classified the types of rural tourism and suggested provisional tourist maps by the type. This study assumed that the local government has a full responsibility for the rural tourism businesses from the initial stage of setting up development plans to the operation of the businesses. Rural tourism theme courses of each small-position area provided tourists with tour courses and time schedules depended on geographical features of the areas. It produced a map that actually makes possible the theme rural tourism. The conclusion of this study is that the quality of living in Nam-Hae county would be improved with the rural tourism businesses which lead to increase in farm household income and to develop local settlement areas.

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Effect of Reinforcement Ratio and Impact Velocity on Local Damage of RC Slabs (철근비 및 충돌속도가 RC 슬래브의 국부손상에 미치는 효과)

  • Choi, Hyun;Chung, Chul Hun;Yoo, Hyeon Kyeong;Kim, Sang Yun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.31 no.4A
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    • pp.311-321
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    • 2011
  • To analysis the effect of reinforcement ratio and impact velocity on local damage, a series of impact analyses are performed to predict local effects. According to these results, the reinforcement ratio has no effect on the penetration depth and perforation thickness, but notable change to the scabbing area were observed. The higher the missile velocity becomes, the greater the degree of local damage to the reinforced concrete slabs is. Analysis results will be useful in the impact-resistance design of containment buildings and structures.

Modification of Local Ice Load Prediction Formula Based on IBRV ARAON's Arctic Field Data (쇄빙연구선 ARAON호의 북극해 실측 데이터에 기초한 국부 빙하중 추정식의 수정)

  • Cho, Sungrok;Choi, Kyungsik
    • Journal of Ocean Engineering and Technology
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    • v.33 no.2
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    • pp.161-167
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    • 2019
  • This paper focuses on a newly designed ice load formula based on the ARAON's 2016 Arctic field data in order to improve a structural design against ice loads. The strain gage signals from ARAON's hull plating were converted to the local ice pressure upon the hull plating using the influence coefficient matrix and finite element analysis. First, a traditional pressure-area relationship is derived by applying probabilistic approaches to handle the strains measured onboard the ARAON. Then, the local ice load prediction formula is re-analyzed after reviewing the ARAON's additional field data to consider information about the ship speed and thickness of the sea ice. It is shown that the newly developed pressure-area relationship well reflects the influence of other design parameters such as the ship speed and ice thickness in the prediction of local ice loads on Arctic vessels.

Design of a CDMA-Based Real-time Remote Monitoring System (CDMA 기반 실시간 원격 감시 시스템의 설계)

  • Woo Jong-Woon;Jung Chun-Suk;Lee Bong-Geol
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.43 no.1 s.307
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    • pp.7-12
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    • 2006
  • In this paper we proposed a real-time remote monitoring system for interoperability between local area and wide area for wireless data communication. In local area, we used a miniaturized low-power wireless module and in wide area used CDMA Cellular System's Packet Data Service. The measurement results can be spread via Internet access in real-time

Variation of the Hull Form using SAC and NURBS Curve (횡단면적 곡선과 NURBS곡선을 이용한 선형 변환)

  • Kim, Hyun-Cheol;Kim, Soo-Young;Ahn, Dang;Ha, Mun-Keun
    • Journal of the Society of Naval Architects of Korea
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    • v.32 no.3
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    • pp.29-36
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    • 1995
  • This paper presents a variation method of the parent ship using sectional area curve & the definition of NURBS curve. That is, global variation of the hull form is made systematically by the geometrical property of sectional area curve, and Local variation of the hull form is executed by the definition of NURBS curve. Then the designer may determine New hull form considering New section area curve, design condition, etc.

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