• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1860-1880
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• 2008

Railroad a field of basic industries in Korea had developed as representative transportation means in the interior. But since the 1970s, its transport requirement decrease had influenced in reduced earning. Thus railroad try to find a various subsidiary earning creations. Among the various subsidiary earning creations, a plan of privately financed station buildings is constructing and using. For the mean time the privately financed station have been constructed by in a narrow sensible development. But now like a Yongsan areas surrounding stations development, comprehensive development think over surrounding stations in a wide sensible development. Dae Jaen Station the traffic center of the south part in Seoul had been constructed by privately financed station of Lotte Shopping Co.

• Journal of Positioning, Navigation, and Timing
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• 제10권3호
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• pp.207-214
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• 2021

A new positioning technique for positioning of LTE base stations is proposed. The positioning information of the base station is absolutely necessary for model-based wireless positioning, and is required in some of the various merhodologies for estimating signals in an uncorrected area when construnting a database for fingerprinting-based positioning. Using the acquired location-based Reference Signal Received Power (RSRP) information to estimate the location of the base station, it is impossible with the existing trilateration methods. Therefore, in this paper, a method using reference particles is proposed. Particles are randomly generated in the application area, and signal propagation modeling is performed assuming that a base station is located in each particle. Based on this, the errors of measurements are calculated. The particle group with the minimum measurement errors is selected, the position of the base station is estimated through weighted summation, and the signal propagation model of the corresponding base station is built at the same time. The performance of the proposed technology is verified using data acquired in Seocho-dong, Seoul.

• 대한교통학회지
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• 제23권8호
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• pp.19-29
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• 2005

본 연구는 요일별 시간대별 지하철역의 이용인구를 중심으로 서울시의 역세권을 유형화한 후 이를 토대로 토지이용특성과의 연관성을 살펴보았다. 역세권 유형화를 위하여 지하철역 이용특성 자료를 이용하여 요인분석을 실시하였으며, 토지이용특성과의 연관성을 파악하기 위하여 다차원척도법을 사용하였다. 본 연구의 결과는 서울시의 지하철의 역세권이 주거, 상업 및 여가, 그리고 업무중심우위으로 분류할 수 있음을 보여주고 있다. 또한 본 연구에서는 주거/상업, 주거/업무 주거/상업/업무 등의 다기능 우위를 지닌, 즉, 복합적 이용특성을 가진 다수의 지하철역도 파악되었다. 이러한 복합적 이용기능의 특성은 최근 논의되고 있는 역세권개발과 대중교통지향형 도시개발의 논의를 활성화하는 데 기여할 것으로 기대된다. 또한 기존의 역세권 유형화 연구가 대부분 도시공간구조나 토지이용특성을 가지고 계획적 측면에서 접근한 반면에, 본 연구가 지하철역의 이용패턴을 통하여 실증적으로 역세권을 유형화하고 있다는 점에서 중요한 차이가 있다.

• 한국철도학회논문집
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• 제11권5호
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• pp.504-512
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• 2008

본 연구는 합리적인 역세권 범위를 설정하고 이에 미치는 요인을 규명하기 위해 CHAID분석을 이용하여 서울시의 강남 강북지역에 대해 SIA모형을 개발하였으며, 그 결과를 요약하면 다음과 같다. 첫째, 지하철 역세권에 영향을 미치는 변수를 중심으로 상관관계를 분석한 결과, 역세권 지가에 영향을 미치는 주요요인이 도보거리로 나타났으며, 두 관계를 이용하여 SIA모형을 개발하였다. 둘째, SIA모형식(선형식, 2차 다항식)을 비교분석한 결과, 강남 북의 역세권의 범위는 지하철역사로부터 도보거리기준으로 강남지역이 767m, 강북지역이 452m로 각각 다르게 나타났다. 셋째, 강남지역의 구간 1(0$\leq$175m)의 경우 역으로부터 거리와 가격과의 관계가 선형이 아닌 2차 다항식의 형태를 나타내고 있다 따라서 현행 도시철도법상 역세권 범위 반경 500m의 기준을 획일적으로 적용하기 보다는 도시의 지역적 특성을 고려하여 재설정하는 것이 바람직하다고 판단된다.

• 한국철도학회논문집
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• 제10권6호
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• pp.670-677
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• 2007

본 연구에서는 1920년 신축되어 등록문화재 제 136호고 등록된 경의선 신촌역사의 건축적 특징을 중심으로 1920년 개설이후 현재에 이르기까지의 변천과정을 살펴보고자 한다. 신촌역사는 서울에서 현존하는 가장 오래된 역사로 역사적, 문화적 가치를 지니고 있고 그와 동시에 개발에 대한 가능성을 통시에 지니고 있었다. 이에 따라 신촌역사는 도심지 내 개발과 보존에 대한 갈등의 성격을 그대로 보여주고 있다. 본 연구는 신촌역사를 중심으로 척도관련시설의 개발과 보존에 대한 현상과 문제점을 진단하고 이에 대한 방향을 찾고자 하였다.

• 한국환경복원기술학회지
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• 제15권2호
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• pp.9-18
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• 2012

The street canyon forms the geometric unit of the built environment. The geometry makes up urban canyons and it influences the urban climate. In order to investigate the wind characteristics of urban street canyon at Dogok-dong, Gangnam-gu in Seoul, the wind direction and wind speed data were observed and analyzed by using 2-D ultra sonic and propeller wind monitor from May 5, 2010 to May 4, 2011. The results show that the prevailing wind direction was west at Station A(Military Mutual Aid Association Building), southwest at Station B(Sookmyung Girls' High School) and the wind speed of Station B was higher than Station A. There were diurnal differences about prevailing wind direction between two stations : it was westerly wind at Station A for a whole day, but at Station B only from 22 : 00 to 04 : 00. However, Station B is different from Station A at other time. At Station B, it was easterly wind from 04 : 00 to 12 : 00, southwesterly wind from 12 : 00 to 22 : 00. In terms of seasonal(except winter) frequency, the spring shows the highest frequency and fall was the next.

• 천문학회지
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• 제55권6호
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• pp.207-213
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• 2022

The Seoul Radio Astronomy Observatory (SRAO) operates a 6.1-meter radio telescope on the Gwanak campus of Seoul National University. We present the efforts to reform SRAO to a Very Long Baseline Interferometry (VLBI) station, motivated by recent achievements by millimeter interferometer networks such as Event Horizon Telescope, East Asia VLBI Network, and Korean VLBI Network (KVN). For this goal, we installed a receiver that had been used in the Combined Array for Research in Millimeter-wave Astronomy and a digital backend, including an H-maser clock. The existing hardware and software were also revised, which had been dedicated only to single-dish operations. After several years of preparations and test observations in 1 and 3-millimeter bands, a fringe was successfully detected toward 3C 84 in 86 GHz in June 2022 for a baseline between SRAO and KVN Ulsan station separated by 300 km. Thanks to the dual frequency operation of the receiver, the VLBI observations will soon be extended to the 1 mm band and verify the frequency phase referencing technique between 1 and 3-millimeter bands.

• 패션비즈니스
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• 제14권3호
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• pp.75-89
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• 2010

The purpose of this study is to provide information how to locate a apparel store based on target age, merchandise's type and price. Three trade areas in Seoul are chosen: Myeong-dong which is the biggest trade area in Korea; Kangnam station one of representative Kangnam trade areas; and Myeongil-Dong a neighborhood trade area. This study is mainly performed by analysing the locations of the stores in the given areas. The result shows that the main apparel stores in Myeong-dong are casual wear stores for young people with the range of mid-high price. The stores in Kangnam station trade area also sell the casual wear for young people but they are mostly mid-low priced. In the trade area of Myeongil-dong, however, there are various kinds of mid-priced apparel stores for residents of all ages. Apparel stores for formal wear, casual wear, and formal-casual wear tend to be located side by side. But other kinds do not. These results show that affinity is found in some types of apparel stores by the analysis of the next-door apparel stores.

• 한국측량학회지
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• 제33권6호
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• pp.537-546
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• 2015

This paper deals with the retrieval of integrated water vapor (IWV) from the zenith tropospheric delay estimated by precisely processing GPS observations at IEODO ocean research station in the East China Sea. A comparison of GPS-IWV with the radiosonde profiling from June and November in 2014 was made to confirm the method and the procedure, adopted for the IWV determination. A series of analysis of these IWV values was performed to capture characteristics of their seasonal and diurnal variations. Furthermore, the troposphere around the ocean research station during typhoon events was spatiotemporally analyzed by including thirteen GPS sites over the Korean Peninsula, indicating correlation between the typhoon location and the tropospheric density.

• 대한교통학회지
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• 제4권1호
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• pp.28-40
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• 1986

Accurate subway demand estimation which is essential for better route selection can be achieved by the exact definition of the influence sphere of subway station. The influence was derived implicitly from the analysis of access time to the station for the cases of Seoul. Access time distribution was investigated by trip purposes, by age, by income, by sex, by travel distance, by kinds of thickets, by the location of station for the analysis of relationship between access time and socio-economic characteristics or urban structure. The difference of average access time between direct access trip and transfer trip which is found 8.6 minutes and 6.1 minutes respectively also investigated. The small difference implies poor transfer system of Seoul subway. 83.1% of subway users are coming from the distance of 10minutes' walk and average access time is 7.8minutes as a whole.