• Journal of KIISE:Computing Practices and Letters
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• v.12 no.1
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• pp.9-20
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• 2006

Web Map Service on mobile environment, provided with cost effective mobile GIS contents and user preferred POIs(Points of interests), is strongly required at this moment when mobile and portable Internet is rapidly spreaded on mobile user community as information technology and mobile HW are evolved in its speed, bandwidth and features. As the mobile and portable Internet becomes popular in mobile services, LBS(Location Based Service) is positioned on a mobile client as one of the best information infra services. Recently mobile GIS (Geographic Information System) comes in service to support LBS, but it is constrained and limited on its system configuration and its presentation methodology of a map, and also it depends on its run time environment. In this paper, we made an effort to design and implement a GIS computing platform with server based thin client for mobile WMS(Web Map Service). For its cost effective Platform which could be easily building up POIs and GIS contents, we're not using commercial GIS solution but NGII's (National Geographic Information Institute's) DXF numerical map, and representing the maps, GIS contents and POIs by SVG(Scalable Vector Graphics) recommended by OGC(OpenGis Consortium). We're also adapting de facto standard of XML web service technology such as WSDL, SOAP to provide real time mobile GIS service on PDA as well as mobile terminal by applying a GPS receiver for a user's location information on mobile environment.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.3
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• pp.122-130
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• 2010

The Study takes the rivers in Zhouzhuang - traditional Chinese Kangnam watery landscape as the object. The purpose of this study is to grasp the relationships between visual characteristics and the preference. The following is the research process: Firstly, the theoretical study of Zhouzhuang, the traditional Kangnam region in China, is conducted, the watery landscape is taken pictures, and 22 photos are selected. Secondly, in order to grasp the visual preference and landscape characteristics of the watery landscape in Zhouzhuang, 22 pictures and 25 pairs of adjectives are adopted for the questionnaire survey. Thirdly, in order to have a better understanding on the physical properties and effects of physical quantity on the preference, the occupation ratios of buildings and sculptures, natural elements, footpaths, bank revetments and other landscape elements are calculated, and the mean analysis, dispersion analysis and regression analysis are conducted. In order to grasp the landscape characteristics and preference factors, 25 pairs of adjectives are used to conduct the factor analysis. In order to grasp the effects of characteristics of visual factors on the preference, the dispersion analysis and regression analysis are carried out. The results are as follows: From the results of the landscape preference analysis, in the No.22 photo with the top preference, 11 pairs of adjectives, namely, "harmonious-disharmonious", "beautiful-ugly", "rural-urban", "soft-rough", "stable-instable", "romantic-realistic", "cheerful-gloomy", "brilliant-simple", "natural-artificial", "familiar-strange", and "clean-dirty" have positive effects on watery landscape. It can be viewed as the relatively important factor in the visual preference. In terms of the results of visual physical quantity analysis of traditional Chinese Kangnam watery landscape, the landscape with high occupation ratio of buildings and sculptures has positive effects on visual preference. The results of analysis of visual physical quantity and preference show that the preference degree increases as the occupation ratio of footpath area increases. The analysis results of visual characteristics of traditional Chinese Kangnam watery landscape identify four factors, namely psychological factor, cultural factor, condition factor and physical factor. It can be concluded from the results of analysis of the relationships between visual preference and visual characteristics that the return coefficient B of the psychological factor is +0.936. It can significantly affect the watery landscape, so it can be identified as the most important factor among the visual preference factors of Chinese Kangnam watery landscape.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.1029-1032
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• 2006

센서 네트워크는 센서 디바이스를 이용해 원하는 정보를 수집하고 전달하는 일종의 애드혹 (Ad-Hoc)네트워크이다. 현재 센서 네트워크의 기술은 많은 분야에서 응용이 예상되고 있지만 센서의 여러 특성에 의해 기존의 애드혹 라우팅 기법을 적용하기에 적합하지 않아 여러 가지의 라우팅 기법이 제안 되고 있다. 제안된 여러 기법 중 체인기반 프로토콜(Chain-Based Protocol)인 PEGASIS(Power-Efficient GAthering in Sensor Information Systems) 라우팅 기법은 헤드 노드의 선택과정에 있어서 BS(Base Station)의 위치를 고려하지 않고 체인으로 연결된 노드들 중에 하나가 헤드 노드로 선택됨으로써 불필요한 데이터의 이동이 발생하게 된다. 본 논문에서는 PEGASIS라우팅 기법의 성능향상을 위해 BS 노드의 위치를 고려한 데이터 이동의 방향성에 기반한 라우팅을 통해 향상된 PEGASIS 라우팅을 제안한다. 데이터의 이동의 방향성에 기반한 라우팅은 데이터의 불필요한 이동 경로를 줄임으로써 기존의 라우팅보다 에너지 효율면에서 뛰어난 성능을 보인다.

• Proceedings of the KAIS Fall Conference
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• 2011.12b
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• pp.413-416
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• 2011

Flip top cap은 경량성, 가공성, 내식성 우수하여 최근에 생활 용기 뚜껑으로 많이 활용되고 있다. Flip top cap은 사출성형에 의해 제작 되며 사출성형 과정에서 힌지부분에 웰드라인(Weldline)이 형성되어 기계적 강도가 떨어지게 된다. Flip top cap은 생활용기에 사용되며 실제생활에서 많은 작동을 요구하기 때문에 힌지부분의 웰드라인은 제품불량에 큰 원인이 된다. 또한 Flip top cap은 생산성을 높이기 위해 멀티캐비티(Multi-cavity) 사출방식을 선호한다. 멀티캐비티 방식은 높은 사출압력을 요구하기 때문에 사출품의 불량과 사출기에 많은 부하가 예상된다. 본 연구에서는 게이트 위치를 조정함으로써 사출품 힌지부분에서 발생할 수 있는 웰드라인을 품질에 영향이 없는 곳으로 이동시키고 최적의 사출 압력을 찾기 위한 유동해석을 통해 최적의 사출조건을 도출함으로써 Flip top cap의 기계적 품질과 제품생산성 향상을 위한 연구가 수행되었다.

• Journal of the Korean housing association
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• v.17 no.3
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• pp.99-109
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• 2006

The purpose of this study was to analyze the characteristic of each view in an apartment unit in terms of the quality. This study was accomplished by two research methods; the field survey on 181 apartment complexes in Daegu, and the preference evaluation on 24 cases sampled in the sense of its location, i.e. inside or outside of a complex. In the field survey, view targets were categorized into various items such as a building, a road, a mountain, a tree, another apartment, the sky, and so on, and the characteristics of the distance from a viewer to view targets and view of the level in an apartment were analyzed. In the preference evaluation, 24 cases, each one has one of the follows; the natural view, the artificial view, and the combined view of the both, were chosen and those were evaluated by 167 interviewees. As a result, the conclusions from the study were drawn as follows; 1) The view, the combination of buildings, roads, mountains, trees, apartments, and the sky, is usually seen in an apartment unit. 2) The type of view target is more significant to a person than its location. 3) The natural and combined view are preferred to the artificial one. 4) In the case of the same outside view, a person likes the open view more than the somewhat covered one.

• Journal of the Korean Society for Precision Engineering
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• v.18 no.12
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• pp.137-144
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• 2001

The major movement blocks of the container are the range between the apron and the designation points on yard in container terminals. The yard tractor drived by operator takes charge of it's movement in conventional container terminals. In automated container terminal, AGV(automatic guided vehicle) takes charge of a yard tractor's role and information of navigation path are ordered from upper control system. The automated container terminal facilities must have the docking system that guides landing zinc to execute high speed travelling and precision positioning. This paper describes the new docking method with the rotating LSB(laser slit beam) generator and two pair of photo receiver. The LSB generator is installed on the fixed ground and the photo receiver is implemented on the moving vehicle such as AGV. The proposed docking system is implemented to confirm it's function and accuracy. The accuracy of measured moving position is represented in ±5mm at 1 data sampling.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.700-701
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• 2019

본 논문에서는 지역 데이터의 시각화에 적합한 증강현실 그래프를 제안하고, 이를 카드 사용 빅데이터에 적용하여 지역별 외식 성향 시각화 도구로 활용한 사례를 제시한다. 증강현실 그래프는 사용자가 위치한 해당 지역의 GPS 정보를 기반으로 빅데이터에서 분석 대상 지역을 선별하고, 지역별 특수 데이터를 찾아내어 해당 지역에 대한 빅데이타 분석 내용을 카메라 영상과 함께 시각화한 그래프이다. 증강현실 그래프를 적용한 외식 성향 시각화 사례에서는 카드 사용 가맹점 소재지 정보, 가맹점 업종, 카드사용시점(월), 카드 사용자 성별구분, 연령대, 월 카드사용금액 및 월 사용 건수 정보등을 수집하였다. 그리고, 분석 대상 지역에 대한 연령대별 외식 선호도 내용을 카드사용건수가 많은 업종별 순위 그래프로 시각화 하여 사용자의 위치에서 확인할 수 있도록 하였다. 제안 증강현실 그래프는 지역별 상권 현황, 아파트 시세 등에 효과적으로 적용될 수 있을 것으로 기대된다.

• Asia Marketing Journal
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• v.4 no.2
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• pp.79-103
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• 2002

기존의 유통연구는 주로 유통점 위주의 관점에서 이루어진 것들이 대부분으로 소비자의 구매의사결정과정 속에서 유통점들이 어떠한 상대적 지위와 역할을 담당하고 있는가를 규명하기 위한 실증적인 연구는 충분하지 않았다고 할 수 있다. 본 연구는 서로 다른 특성들을 갖고 있는 유통점들이 소비자 구매의사결정과정 내에서도 서로 다론 위치와 역할을 차지하고 있다는 입장에서 출발하였다. 즉, 소비자들이 자신의 구매의사결정단계마다 각 유통점들을 서로 다른 지위와 역할을 하는 것으로 지각한다는 것이다. 실증연구 결과, 가전제품 유통점의 경우 실제로 소비자들의 구매의사결정과정이라는 지각 속에 각 유통점들의 상대적인 위치와 역할의 유의한 차이가 나타났다. 또한 각 유통점별로 지각위험의 일종인 점포장애(store barriers)가 다르게 나타났고, 점포장애가 점포선호도, 방문빈도, 구매빈도와 일정부분 상관관계가 있는 것으로 나타나 유통점으로서는 해당 점포장애를 줄이는 대책이 필요할 것이다. 한편 상표고려군(개수)에 있어서는 구매의사결정의 첫단계인 문제인식단계와 최종구매단계 사이에 차이가 없어 제조업체로서는 가전제품의 문제인식단계의 유통점에 제품을 유통시켜 소비자들의 상표고려군에 자사의 상표를 포함시키는 것이 중요하다는 시사점을 발견할 수 있었다.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.31 no.2
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• pp.118-127
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• 2013

In this study, Seongbuk-dong historical & cultural resources of the surrounding landscape were analyzed by the visual characteristics of the landscape adjective analysis. Research was investigate to the relationship between visual characteristics and preferences and Research in the following way. Selected historical and cultural resources in the surrounding area are located in Seongbuk-dong 30 slices the survey was conducted. Landscape preference factors to identify the scale of 16 adjectives and then factor analysis was conducted. Lastly, Analysis of variance and regression analysis were conducted in order to determine the impact of the last image factors on visual preferences. Firstly, The results can be summarized as follows. Officer for 30 pictures appear in Seongbuk-dong in the historical and cultural resources, and distributed around the target preference for the 16 adjectives analysis yielded an average result of overall preference were analyzed and that is a 3.72 average. In these photos, VP8, VP9, VP10, VP12, VP15; 4.5 points more than one order higher. The reason is limit of altitude by the Seoul landscape plan for the historical and cultural resources around. It also judged important reason that history and Culture are in harmony with the surrounding cultural property in the conservation area. Secondly, Important factors are factor 1(aesthetic factors), factor 2(cultural factors), factor 3(physical factors) and three factors could be identified. Results of the analysis of variance and regression analysis about factors for visual preference and image shows value of psychological factor is most significant to explain for nearby history &cultural resources of Seongbuk-dong of scenery around. As a result, the state can not view historical and cultural resources for analysis will be located in a residential area near the historical and cultural resources for aesthetic factors. Third, the negative side of the argument is a residential area which is not arranged surrounding landscape maintenance of historical and cultural resources has emerged. Historical and cultural resources in harmony with the phenomena of the physical, cultural, and aesthetic characteristics of the three areas is a positive factor in the high incidence. Factors from that are expressed in this study by analyzing multi-dimensional analysis to derive a factor to be considered important in the management of historical and cultural resources, landscape around is required.

• Journal of the Korean Institute of Landscape Architecture
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• v.36 no.4
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• pp.36-47
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• 2008

The purpose of this study is to classify and assess the characteristics of urban Korean parks by on-site park users' reactions, such as satisfaction, preference and cognitive image of the park and park facilities. The park facilities are classified into five types of satisfaction: management status, activity facilities, convenient facilities, circulation and density, and landscape facilities. The park users are satisfied with conversation, rest and relaxation in the parks, but not satisfied with studying and nature experience. The behaviors in the park are classified as park activities, emotional and experiential activities, and nature activities. The results indicate that the images of the parks are stable, comfortable and natural. There are three factors to classifying the park images: nature-harmony, openness, uniqueness. Preferences for each parks are generally good. According to the criteria such as satisfaction of park facility, behavioral satisfaction, images and preference for each park, the 12 parks are divided into 5 different types: multi-purpose park, well-balanced park with natural elements, urban open space, park to be improved, and ecological park. The characteristics of each park was analyzed and categorized. This study dealt with only the parks in Seoul and its environs, and the survey was only done during the summer season. Therefore, further research is necessary to enlarge and generalize the results of this study, considering seasonal and regional variations.