• 한국지형학회지
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• 제17권3호
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• pp.59-75
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• 2010

이 연구에서는 우산국 정벌의 동해 출항지를 검토하기 위해 조선시대 진·포구를 대상으로 자연환경 입지 평가를 실시하였다. 연구결과, 연구지역에는 조선시대 수군진과 진·포구가 총 55개소였으며, 그중 연곡포, 안인포, 삼척포, 수산포, 월송포 등에는 수군진이 위치하였다. 6세기경의 해수면 복원 결과에서는 현재의 해수면보다 당시 약 1m 정도 높았던 것으로 분석되었다. 진포구의 입지유형 분류에서는 자연환경 분석을 통해 3가지 유형으로 분류되었다. 입지유형I은 중·소하천의 만입지에 위치하고, 그 전면에 사취가 발달하여 피항 및 방어에 가장 적합한 입지조건을 가진 진·포구로 총 21개소이다. 입지유형 II는 외해에 직접 접하고 있는 진·포구들로 총 22개소이며, 입지유형 III은 만입지를 중심으로 형성된 진·포구들로 총 12개소이다. 입지유형 I을 대상으로 한 최단거리분석에서는 총 9개소, 배후지 경사분석 결과에서는 15개소, 배후지 면적분석에서는 총 13개소, 가시권 분석에서는 13개소, 해류분석에서는 총 11개소의 진·포구가 출항지 입지요인을 만족하고 있는 것으로 나타났다. 최종평가 결과, I등급 지역은 오분진과 망양진 등 총 2개 진·포구였다. 그중 오분진이 피항 및 방어에 가장 유리한 입지 특성을 가졌으며, 수심이 깊고 만입지가 넓어 대규모 선단의 정박에 유리하였다. 따라서 오분진 지역은 우산국을 정벌하기 위해 이사부가 출항했을 가능성이 가장 높은 출항지로 검토되었다.

• 환경영향평가
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• 제20권5호
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• pp.697-703
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• 2011

The purpose of this study aims to preserve biodiversity in increasingly fragmented green patches for spatial analysis of planting on the eco-corridors and to optimize the target species, the location, width, cross section of the eco-corridors. It was suggested that eco-corridors should have to planned at early stages of road planning so that the number and locations of eco-corridors in advance. Ecological corridor is the facility to connect two habitats fragmented by road, dam, housing and industrial area. And, everyone agree that ecological corridor is important useful structural component that help animal movement in fragmented landscapes. However, ecological corridors have many problems of the recorded the size of corridor, planting species to nearby exiting vegetation species and structure. The most important facts that there are no consideration for location of animal migration and behavior using eco-corridors. This study was carried out to spatial analysis of eco-corridors location, satellite data and GIS were used to analyze for searching optimum location of the eco-corridors.

• 한국정보통신학회논문지
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• 제18권1호
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• pp.50-56
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• 2014

최근 위치 기반 서비스를 사용하는 안드로이드 앱이 널리 사용되고 있다. 안드로이드 플랫폼에서 지원되는 여러 위치 제공자 중 GPS (Global Positioning System) 위치 제공자의 동작에 대한 이해는 관련 안드로이드 개발자에게 중요한 과제이다. 본 고는 안드로이드 플랫폼의 GPS 서브시스템 소스를 분석하여, GPS 위치 제공자의 동작을, 주요 쓰레드를 중심으로 그리고 초기화 단계부터 최종 위치 보고 단계까지 단계별로 일목요연하게 제시하고자 한다.

• 대한전기학회논문지:전력기술부문A
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• 제52권1호
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• pp.29-35
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• 2003

This paper presents a fault location algorithm when there are parallel circuits in power system networks. In transmission networks, a fault location method using the distribution factor of fault currents is introduced and in distribution networks a method using direct 3-phase circuit analysis is developed, because the distribution networks are unbalanced. The effect of parallel circuits in fault location is studied in this paper. The effect is important for the range of protecting zones of distance relay in transmission networks and fault location in distribution networks. The result of developed fault location algorithm shows high accuracy in the simulation that using the EMTP.

• 농촌계획
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• 제21권2호
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• pp.115-126
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• 2015

Although the frequency of use for community facilities in rural villages is growing as well as the importance of the facilities for urban-rural exchange is being highlighted, study on spatial location-analysis of the facilities for such multi-purpose is not so much. This study aims to find the spatial distribution forms of community facilities in rural villages such as community center and rural-pocket park through location-analysis, in order to provide available data for selecting location in the future. As the study area, Sojeong-myeon, Sejong Special City was selected. This study conducted GIS analysis for criteria of the location-evaluation model developed in this study. This study introduced the concept of time-distance for accessibility analysis. This paper also used linear-consecutive scoring method(LCSM) as a scoring method of criteria and Analytic Hierarchy Process(AHP) method for weighting values of criteria. The application results showed that the new model can generate the intensity of community facilities according to spatial distribution and accessibility from cities to the facilities.

• 한국환경복원기술학회지
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• 제11권2호
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• pp.19-27
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• 2008

Ecosystem fragmentation by human intervention breaks down the biosphere habitat. Wildlife corridors connect biosphere habitats to maintain ecosystem continuity and provide animals with connecting routes. In Korea, there are 17 existing wildlife corridors on highways (as of December, 2006. Korea Freeway Corporation). There are 24 highway routes, 2,923km of highway(as of December, 2004. Korea Freeway Corporation). However, wildlife corridors are not enough and roadkill increases every year, so we need to construct additional wildlife corridors on highways. This study proposes a new approach to the location of wildlife corridors on highways, using a comprehensive analysis method for main location elements, and applies it to a study area. First, it examines traditional approaches to location of wildlife corridors through literature review and field study to analyze the present conditions of existing wildlife corridors. Then, it developes a comprehensive analysis method for the location of wildlife corridors. (1) Field investigation : investigate planting, water bodies and so on. (2) Roadkill analysis : roadkill counts, locations, time, and so on. (3) Monitoring : animal traces were surveyed and sensor cameras were installed to determine target species. (4) Simulation for animal movement : most probable wildlife dispersal was simulated by a computer software. (5) A new comprehensive approach overlays all analysis on a map and determines the location of proposed new wildlife corridors. In conclusion, it proposes an over-bridge type wildlife corridor in Dalnaenae Hill (413-414km from Busan) and an underpass type near the entrance to Gwanhyun temple way (415-416km from Busan). This new approach based on roadkill data, computer simulation of wildlife dispersal, monitoring of animals, and site analysis, may contribute to better location of wildlife corridors on highways.

• 한국기계가공학회지
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• 제20권12호
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• pp.129-135
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• 2021

Injection molding is a manufacturing method of melting the polymer resin and injecting it into a mold to molding it into the desired form. Due to the short molding time and outstanding formability, complex products can be shaped with high precision and it is the most widely used polymer molding method. However, there may be areas that are not filled depending on the location of the injection gate where polymer resin is injected. Formability is determined by deformation and surface precision due to the impact of residual stress after molding. Hence, choosing the location of the injection gate is very important and molding analysis of injection molding is essential to reduce the cost of the mold. This study evaluated the injection formability based on the location of the injection gate of the vertical machining center ATC tool port using injection molding analysis and the results were compared and analyzed. Injection molding analysis was conducted on filling, packing, and deformation according to the location of the gate of the ATC tool port. From each injection gate location, filling time, pressure, and maximum deformation were compared. At gate 2, conditions of molding time and the location of the gate were far superior in production and quality. Gate 2 produced the smallest deformation of 0.779mm with the best quality.

• 한국농공학회지
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• 제40권2호
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• pp.92-101
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• 1998

Location patterns of protected horticulture were analyzed using a multiple correspondence analysis(MCA). The analysis could be used in evaluating location suitability of protected horticulture. The location factors of the protected horticulture for MCA include land category, size of protected horticulture, land slope, topography, effictive soil depth, irrigation and drainage condition, distance from roads, and so forth. The results showed that there were three different location patterns of protected horticulture. The first pattern was characterized by their nearness to villages. The facilities of this pattern were mainly located near to residential area. The second pattern was of those found in plain area. The facilities of this pattern were large in scale and located in paddy field far from residential area. The facilities of the last pattern were small in scale and located on nonpaddy fields. They were mostly found in hilly or mountainous area.

• Journal of information and communication convergence engineering
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• 제7권3호
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• pp.268-274
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• 2009

Human beings can represent state of mind such as psychological state, personality or emotional trouble by the pictures painted on one's own initiative. But in general, it is hard to understand a consulter's unconscious state through one's objective and intentional descriptions only. So one's psychological state and emotional trouble can be understood and cured by color and location information of objects drawn in one's picture. By this reason, a consultant can help and settle a consulter's growth stages of life and emotional trouble through treatment by pictures. In this paper, we proposed a method to find out state of sensitivity by analysis of color and location information represented in a picture and fuzzy inference rules. We applied the proposed method to the states of sensitivity from color information proposed by Alschuler and Hattwick and the psychological states from location information proposed by Grunwald. In the experimental results by the two applications, we verified the proposed sensitivity analysis method is efficient.

• 전기학회논문지
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• 제57권5호
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• pp.773-782
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• 2008

This paper describes the method for proper location of protective equipment in underground distribution cable through field test and analysis at testing lines. To prove the reliability for analysis simulated by EMTP/ATPDraw, the testing results obtained by the real test and the analysis for the same test lines were compared each other. The accuracy of analysis was proved by the comparison. Over voltages were measured and analyzed at each point of cable and switches in case of which lightning surge current was applied. The analysing method was applied to real distribution systems to select the proper location of protective equipment. It is evaluated that the location of protective equipment was properly selected.