• 대한전기학회논문지:시스템및제어부문D
• /
• 제52권5호
• /
• pp.283-289
• /
• 2003

This paper proposes an expert system which can determine automatically the shunting routes corresponding to the given shunting works by considering totally the train operating environments in the station. The expert system proposes the multiple shunting routes with priority of selection based on heuristic search strategy. Accordingly, system operator can select a shunting route with the safety and efficiency among the those shunting routes. The expert system consists of a main inference engine and a sub inference engine. The main inference engine determines the shunting routes with selection priority using the segment routes obtained from the sub inference engine. The heuristic rules are extracted from operating knowledges of the veteran route operator and station topology. It is implemented in C computer language for the purpose of the implementation of the inference engine using the dynamic memory allocation technique. And, the validity of the builted expert system is proved by a test case for the model station.

• Korean Journal of Geomatics
• /
• 제4권2호
• /
• pp.53-57
• /
• 2004

Due to the traffic congestion and public-oriented transportation policies of Seoul, public transportation is receiving attention and being used increasingly. However, current transport routes configuration is showing unbalanced accessibility throughout the city area creating differences in time, expenses and metal burden of users who travel the same distances. One of the reasons is that transport route planning has been partially empirical and non-quantitative tasks due to lack of relevant methods for assessing the complexity of the transport routes. This paper presents a method to compute the connectivity of public transport system based on the topological structure of the network of transport routes. The main methodological issue starts from the fact that the more transfers take place, the deeper the connectivity becomes making that area evaluated as less advantageous as for public transport accessibility. By computing the connectivity of each bus or subway station with all others in a city, we can quantify the differences in the serviceability of city areas based on the public transportation. This paper is based on the topological interpretation of the routes network and suggests an algorithm that can automate the computation process. The process is illustrated using a simple artificial network data built in a GIS.

• 한국조경학회지
• /
• 제18권3호통권39호
• /
• pp.155-169
• /
• 1990

The main purpose of this study is to suggest fundamental materials and a guideline for design through grouping of the users' use route patterns and analyzing determinants to choose those route patterns in urban parks. Study sites were Jungang, Dlseong, and Beomeo park, where located Taegu city-Key results obtained through a series of investigation were as follows : When Users come in and out urban parks, most orientations of their use routes were counterclockwise, and not in such cases, greatly affected by facilities arrangement. There were a large number of users in the main route placed the principal facilities. Users' use route patterns were grouped by their characteristics, which were circulation, semi-circulation, irregular, and piston type. And all the types except piston type can be subdivided into spoon and loope type. Factors analysis to the types produced five meaningful patterns of variables. Five factors were named as dimension of characteristics : Park composition factor, facilities use factor, users' personal factor, park use behavioral factor, routes choice factor.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2004년도 Asia Navigation Conference
• /
• pp.54-63
• /
• 2004

There are two principal routes for the Asia-North America containerized cargo, that of Asia-West Coast and Asia-East Coast. On the West Coast, the Asia-Los Angeles, dominate the commerce, whereas on the Asia-East Coast it's the Panama Canal. Each of these routes has different characteristics. All are similar in that each is the door to the commerce of containerized cargo originating in Asia; each combines maritime and overland transportation; each has important intermodal connections and is able to distribute cargo throughout the West and East Coasts of the United States. Each route also has its port of preference that has the necessary infrastructure, equipment and intermodal connections. For example, in the case of the Port of Los Angeles, in spite of some of its advantages, it has several serious problems due to the interminable containerized cargo traffic that must be solved rapidly and satisfactorily in order to progress. In this paper, we would like to show the problems of two main routes.

• 한국산학기술학회논문지
• /
• 제18권9호
• /
• pp.84-91
• /
• 2017

본 논문은 함경감사가 작성한 감영(순력)일기인 윤양래의 "관북일기"와 "순력일록", 심수의 "동북안사록" 중 '북행일록', '북순일기'를 통해 함경도 관찰사의 순력 노정과 기간, 순력 중의 주요 업무 및 함경도 순력의 특징을 살펴보고자 하였다. 함경도 관찰사의 순력은 조선시대 6대로 중의 하나인 경흥로를 거의 그대로 이용하며, 따라서 경흥로 상의 역참이 중요한 경유지가 된다. 대로를 이용한 순력은 산세가 험한 함경도의 지역적 특성에 기인하는 것으로 판단된다. 또한 감영처 함흥을 중심으로 북순과 남순으로 나누어 시행하는데, 남쪽에 치우친 함흥의 위치로 말미암아 행영과 두만강 하구 관방지역 진, 보에 이르는 북순의 경로가 긴 것에 비하여, 안변에 이르는 남순은 경로와 기간이 짧다. 북순은 관문 취점, 윤조, 길주 별과, 유생백일장과 무사 시사 등이 순력의 주요 업무이며, 남순은 영흥의 준원전, 문천의 숙릉, 안변의 지릉 등 왕실사적과 능침의 봉심이 주요 업무가 된다. 한편 순력 중 경승의 유람을 포함한 행로를 잡기도 하였는데, 북관10경이 유람의 주요한 대상이 되었다.

• 대한조선학회논문집
• /
• 제44권3호
• /
• pp.340-347
• /
• 2007

Main purpose of the study is to develop a transit model for icebreaking cargo vessels in the Northern Sea Route and to select optimum sea routes with the shortest navigation time and the lowest operation cost. This numerical model executed with basic information such as ship capabilities, transit directions and months of transit, can calculate total transit distance and elapsed time, mean speed, operation cost for each vessel. In the transit model. environment information such as the site-specific ice conditions, wave and wind states are utilized for four different months (April, June, August, and October) along the Northern Sea Route. The model also defines a necessary period of an icebreaker escort. Then the optimum sea routes are selected and visually displayed on the digital map using a commercial software ArcGIS. Usefulness of the selected sea routes is discussed.

• 한국식품영양학회지
• /
• 제29권6호
• /
• pp.911-922
• /
• 2016

This study was conducted to assess the recognition and consumption of meal alone and processed food according to major of college students in Seoul Metropolitan area and Chungcheong province, Republic of Korea. To accomplish this, a survey was conducted to investigate 353 college students (171 food & nutrition majors and 182 non-majors) regarding their general characteristics, dietary behaviors, meal alone issues, and the purchase and consumption of processed food. Most major and non-major students skipped breakfast. The main reason for skipping was not having time. Majors and non-majors put great importance on their lunch and evening meal, respectively. Nutrition information routes for majors were 'college class' (62.5%) and 'TV radio' (17.5%). However, the routes for non-majors to obtain nutrition information were 'internet smart phones' (41.1%) and 'TV radio' (28.3%). These results suggest the need to provide correct information concerning nutrition to college students. Most major and non-major students tend to have 0 to 2 times of meal alone per week. The main reason for meal alone was schedule unsuitable for eating with family or friends. The most critical factors for majors and non-majors when they chose menu to have meal alone were personal taste and money, respectively. The primary consideration for choosing processed food was price and the main purchase route was convenience store. The main reason for consuming processed food was easy-to-cook. Of processed foods, the most favored ones were noodles and fish products. Meal alone frequency was positively correlated with age (p<0.05), grade (p<0.05) and monthly allowance (p<0.05). Preference and consumption frequency of processed food were negatively correlated with concern about nutrition (p<0.05) and meal frequency (p<0.05), respectively. Based on these results, greater efforts should be made to provide meaningful information regarding programs for nutrition education to improve their dietary habits. Research and development of processed food specifically for college students eating alone should be increased.

• 한국화재소방학회:학술대회논문집
• /
• 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
• /
• pp.247-250
• /
• 2008

급기가압은 건물의 중요 부분인 피난로 공간에 공기 압력을 상승시켜 피난자와 소방관에게 연기에 의해 영향을 받지 않는 보호된 피난로(계단과 로비)를 확보하는 방법이다. 본 연구에서, 급기가압을 평가하기 위해, 창문, 방화문과 급기댐퍼에 따른 건물의 구성 요소인 방(거실), 로비(전실), 풍도에서의 압력 특성을 연구하였으며, 실험변수에 대한 중요한 정보를 얻을 수 있었다.

• International Journal of Naval Architecture and Ocean Engineering
• /
• 제9권5호
• /
• pp.492-498
• /
• 2017

Subsea pipeline route design is a crucial task for the offshore oil and gas industry, and the route selected can significantly affect the success or failure of an offshore project. Thus, it is essential to design pipeline routes to be eco-friendly, economical and safe. Obstacle avoidance is one of the main problems that affect pipeline route selection. In this study, we propose a technique for designing an automatic obstacle avoidance. The Laplacian smoothing algorithm was used to make automatically generated pipeline routes fairer. The algorithms were fast and the method was shown to be effective and easy to use in a simple set of case studies.

• 건축역사연구
• /
• 제29권6호
• /
• pp.113-128
• /
• 2020

The king of Joseon Dynasty Jeong-jo commanded the renovation of Seongjeong-gak, once a study for crown prince, to serve as Pyeonjeon(便殿), a main office for kings. The renovated building strictly separated the routes designated for the king and the other officers, respectively. The interior space consisted of Youngnae, reserved for the king and his senior aides, and Youngwae, for lower ranking officers. Youngnae(楹內) and Youngwae(楹外) corresponded to the two blocks (the space between two columns) on the east and west side, respectively. Such structure of Pyeonjeon was heavily transformed over several occasions beginning from the late nineteenth century. Youngwae was subdivided into separate spaces, and the routes for the king and the officers became indistinguishable.