• 한국의학물리학회지:의학물리
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• 제12권2호
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• pp.171-175
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• 2001

본 연구에서는 고정틀 정위방사선치료장비에 사용되는 치료계획시스템과 무고정틀 정위방사선치료시스템에 사용되는 치료계획시스템을 이용하여 intracranial 표적을 대상으로 치료계획을 수립하였다. 치료계획을 평가하기 위하여 RTOG-9005 규정서에서 정위방사선치료계획의 정도관리를 위하여 사용한 Planning Target Volume Coverage를 확인하고 Conformity Index(CI)와 Homogeneity Index(HI)를 구하였다. 이들 값으로부터 두 치료계획시스템에서 계산한 치료계획이 동일함을 알 수 있었다.

• 한국조경학회지
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• 제36권4호
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• pp.48-64
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• 2008

본 연구는 각종 대규모 개발사업 및 난 개발 등에서 야기되는 경관훼손 문제를 보다 더 효과적으로 대응해 나갈 수 있는 체계화된 경관생태계획 모형을 설정하는데 가장 큰 의의를 두었다. 연구결과는 다음과 같다. 먼저 국내 외 문헌분석 결과, 경관생태계획 모형설정을 위한 계획지표 항목은 자연보호지역의 설정, 습지 비오톱의 관리 및 조성 등 총 60개로 나타났다. 이들을 물리적 지표 항목 중심으로 재설정한 결과 최종적으로 선정된 계획지표 항목은 총 34개로 분석되었다. 사례지 현장조사 결과, 총 17곳의 사례지 내에는 문헌분석에서 도출된 34개의 계획지표들 모두가 출현하고 있는 것으로 나타났다. 또한, 현장조사 과정에서 추가된 계획지표 항목 4개를 포함하여 최종 선정된 계획지표 항목은 총 38개로 나타났다. 세부 계획지표들의 중요도 분석 결과, 대부분 5점 이상으로 비교적 높은 것으로 나타났다. 특히 자연보호지역 설정, 경관보호지역 설정 등은 중요도 값이 6.2 이상으로 매우 높았다. 또한, 세부 계획지표 특성별 유형화를 위해 요인분석을 수행한 결과, '근자연형 생물서식공간의 설치, 복구 및 관리' 등 총 7개의 요인으로 구분되었다. 이상과 같은 세부 계획지표 항목의 유형화 결과 및 중요도 결과 값을 종합 분석하여 1차 경관생태계획 모형을 설정하였다. 1차 모형을 바탕으로 하여 좀 더 체계적인 경관생태계획 모형을 구축하기 위해 '최상 값 선택을 위한 다중비교(MCB)' 분석을 실시하였다. 5가지로 분류된 계획지표 군별 MCB 분석 결과, 각각의 계획지표군 모두에서 최상 값이 확연히 드러나고 있는 것을 확인할 수 있었다. 보전지역, 보완지역 등 총 9가지로 설정된 계획의 기본방향에 대한 중요도 분석 결과, 평균 중요도 참은 보전지역과 보완지역이 각각 4.62와 4.54로 매우 높은 것으로 나타났다. 이상과 같은 1차 모형, MCB 분석 및 계획의 기본방향에 대한 중요도 분석 결과를 종합하여 2차 경관생태계획 모형을 설정하였다. 마지막으로 수직적 전환관계 분석에서 일례로 '보전지역'의 경우 휴양공간 조성을 제외한 모든 계획지표군에서 5.2 이상의 높은 중요도 값을 보였다. 또한, 수평적 연관성 분석의 경우 '추가적 개선, 관리 및 연결조치'와 타 계획지표군과의 연관성 정도는 5.3 이상으로 모두 높은 것으로 나타났으며, 특히 '자연과 경관으로부터 특별히 보호되어야 할 부분'과의 연관성에 관한 중요도는 6.07로 가장 높게 나타났다.

• 대한원격탐사학회지
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• 제18권5호
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• pp.263-271
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• 2002

Recently, spatial information technologies using remotely sensed imagery and functionality of GIS (Geographic Information Systems) have been widely utilized to various types of transportation-related applications. In this study, extraction programs of some practical indices, to be effectively used in transportation reference planning problem, were designed and implemented as prototyped extensions in GIS development environment: traffic flow estimation (TFL/TFB), urban rural index (URI), and accessibility index (AI). In TFL/TFB, user can obtain quantitative results on traffic flow estimation at link/block using high-resolution satellite imagery. Whereas, URI extension provides urban-rural characteristics related to road system, being considered one of important factors in transportation planning. Lastly, AI extension helps to obtain accessibility index between nodes of road segments and surrounding district areas touched or intersected with the road network system, and it also provides useful information for transportation planning problems. This approach is regarded as one of RS-T (Remote Sensing in Transportation), and it is expected to expand as new application of remotely sensed imagery.

• 한국정밀공학회지
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• 제23권9호
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• pp.119-126
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• 2006

This paper addresses the methodology development far the automated machining setup planning system using case-based reasoning(CBR). The case-based reasoning is used to develop a setup planning system. which consists of part input and representation module, case retrieval module, and case adaptation module. We present new approaches in the part input and representation module and the case retrieval module focusing on the similarity index determination. An illustrative example is included to demonstrate the proposed method.

• 제어로봇시스템학회논문지
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• 제6권11호
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• pp.1003-1012
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• 2000

When a robot hand grasp an object, the number of ways to grasp it stably are infinite and thus an optimal grasp planning is needed to find the optimal grasp points for satisfying the objective of the given task. In this paper, we first define some grasp indices to evaluate the quality of each feasible grasp and then a weighted composite grasp index by combining all of the grasp indices is also defined. Next, we propose a method to find the optimal grasp points of the given object by comparing the defined weighted composite grasp index for each feasible grasp points. By simulation results, we show the effectiveness of the proposed optimal grasp planning method and also discuss the trend of each grasp index as the grasp polygon.

• 한국방사선학회논문지
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• 제9권6호
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• pp.343-348
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• 2015

감마나이프 방사선수술 전방향 치료계획과 역방향 치료계획을 비교 분석하였다. 10 case의 청신경초종 영상을 이용하여 동일한 조건으로 전방향 치료계획 1, 2(FP-1,2) 및 역방향 치료계획(IP)을 수립하고, 샷의 수(No of shot), conformity index(CI), Paddic conformity index(PCI), Gradiant index(GI), 치료시간 등을 비교 하였다. IP가 FP에 비하여 샷의 수가 적었으며, 표적용적이 증가할수록 샷의 수는 증가하였다. CI는 FP-1:0.85, FP-2 :0.86, IP:0.94, PCI는 FP-1:0.79, FP-2:0.81, IP:0.78로 IP가 높거나 비슷한 결과를 보였다. GI는 FP-1:2.94, FP-2:2.94, IP:3.01로 비슷한 값을 나타내었다. FP를 기준으로 상대적 조사시간은 전체적으로 IP가 짧은 것으로 나타났다. IP는 FP와 비슷하거나 우수한 평가값을 나타내고 치료계획에 소요되는 시간이 짧고 치료시간이 짧아 임상적으로 유용한 것으로 판단된다.

• 대한전기학회논문지:전력기술부문A
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• 제49권11호
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• pp.566-574
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• 2000

This paper propose a heuristic algorithm based on the Branch-Exchange (BE) method to solve Optimal feeder Routing(OFR) problem for the distribution system planning. The cost function of the OFR problem is consisted of the investment cost representing the feeder installation and the system operation cost representing the system power loss. We propose a properly designed heuristic strategy, which can handle the horizon-year expansion planning problem of power distribution network. We also used the loop selection method which can define the maximum loss reduction in the network to reduce calculation time, and proposed a new index of power loss which is designed to estimate the power loss reduction in the BE. The proposed index, can be considered with both sides, the low voltage side and voltage side branch connected with tie one. The performances of the proposed algorithms and loss index were shown with 32, 69 example bus system.

• 한국산업융합학회 논문집
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• 제11권2호
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• pp.49-58
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• 2008

This study aims to identify the structure and system to make close relationship among planning elements, legal regulation and evaluation index toward sustainable development in the ecological housing estate. Through these close relationships the ecological housing estate could get more sustainability. With this consideration, this study consists of following three parts. First, we review the key issues of sustainability in ecological housing which are focused on the energy-efficient planning. Second, we extract the planning elements, legal regulation and evaluation index using the qualitative system dynamics that is found out all phenomenons from viewpoint of closed loop thinking and circular feedback system. Third, we analyse the correlationship among them in terms of energy efficient planning in the ecological housing estate. Finally, we summarize the findings toward sustainability in ecological housing estate through these analysis.

• 농촌계획
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• 제10권2호
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• pp.1-6
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• 2004

This study tried to construct a direction in regional planning concerning the structural relationship between the ratio of aged population and the industrial characteristics. We investigated this structural relationship incorporating the aged population index and the number of classified companies. We applied diverse statistical analyses to understand the relationship. We classified the number of companies to reflect regional industrial characteristics using the principal component analysis. We applied a multiple regression model to understand the relationship between these two indices. The aged population index represents the degree of being old divided by the ratio of juvenile population and aged population. We found that such industries as manufacturing, service, and conveyance increase the ratio of juvenile population. However, industries such as tourism, waterworks, forestry, agriculture and etc. have a positive effect on the aged population index. In addition to these findings, we believe that the efficacy of this study is the possibility that can be used as the basic data when central or local autonomous entities need to adopt rural development planning.

• 한국주거학회논문집
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• 제18권6호
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• pp.15-23
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• 2007

It was undeniable that rapid development of scientific technology gave us not only convenience and efficiency but troubles for existence of human due to destruction of ecosystem. Especially, rapid and massive expansion of the city deteriorated those phenomenons. Constructing Ecovillage was important and could be an alternative dwelling model in that it was sustainable so that we could cope with the troubles. But now, meaning and purpose of it was being hazy while thoughtless Ecovillage and notions of it were diffused. This study began to derive planning and evaluation index of Ecovillage on the basis of reference studies and suggestion for the notion and purpose of Ecovillage. This study began to suggest more clear notion of Ecovillage with reference study and derive planning and evaluation index of Ecovillage on the basis of the prior study. After Interviewing research and Field study, the derived index was applied to Ansolgi village and an evaluation for the application was made to suggest a direction and ways to develop and activate Ecovillage. The result of evaluation with the indices showed that Ansolgi village had those declined to visible and easy to make planning factors. Therefore, to activate and sustain Ecovillage in KOREA, even, simultaneous and well linked planning and evaluation indices should be developed. At this moment, since ten years have passed from the beginning of Ecovillage in KOREA, a study reflecting dwellers' evaluation is needed. And it is the most important the dwellers' cognition for the problems and will to resolve them and continuous interest and investment of government and others who are interested in sustainable development.