• 로봇학회논문지
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• 제4권1호
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• pp.25-33
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• 2009

One of the main problems of topological localization in a real indoor environment is variations in the environment caused by dynamic objects and changes in illumination. Another problem arises from the sense of topological localization itself. Thus, a robot must be able to recognize observations at slightly different positions and angles within a certain topological location as identical in terms of topological localization. In this paper, a possible solution to these problems is addressed in the domain of global topological localization for mobile robots, in which environments are represented by their visual appearance. Our approach is formulated on the basis of a probabilistic model called the Bayes filter. Here, marginalization of dynamics in the environment, marginalization of viewpoint changes in a topological location, and fusion of multiple visual features are employed to measure observations reliably, and action-based view transition model and action-associated topological map are used to predict the next state. We performed experiments to demonstrate the validity of our proposed approach among several standard approaches in the field of topological localization. The results clearly demonstrated the value of our approach.

• 한국통신학회논문지
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• 제12권2호
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• pp.160-167
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• 1987

데이터와 音聲 共用의 近距離 通信網에서 메시지의 種類와 局의 位置에 따라 優先權을 , 局의 數에 관계없이 단지 2비트만으로 傳送豫的 可能한 CS/MLBP(carrier sense/message and location based proiority)豫的制御方式을 提案하였다. 提案된 方式에서는 局數에 관계없이 예약비트가 단지 2비트이므로 예약시간이 짧아 網의 delay-throughtput特性이 좋아지고, 高負荷에서 音聲패킷의 棄却率도 적을 뿐만 아니라 局數의 增加가 delay-throughput特性에 影響을 주지 않는 長點이 있다. 시뮬레이션을 토하여 本 方式의 傳送性能을 評價하고 DSMA(distributed schedulign multiple access)를 利用한 方式$^(6)$과 비교하였다.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제48권3호
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• pp.192-199
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• 1999

During start up and shut down, the generator is rotating at a low speed and copper dusts cause arcing between the turns in the slot. Shorted turns occurred primarily by the movement of these copper dusts between individual windings in the generator rotor. Detection of shorted turns was performed in five gas turbine generators in two combined cycle power plants. Two types of permanent and temporary flux probes were used in this paper. These flux probes have been used to develop a methodology for detecting shorted turns in an operating generator's rotor. The flux probes sense the rotor winding slot leakage flux and produce a voltage proportional to the rate of change of the flux. This pattern of flux variation is the signature unique to each rotor winding. An appropriate waveform analysis technique canidentify the pole location, the slot number, and the number of shorted turns within each slot. Shorted turns in field winding of gas turbine generator(125.7 MVA) were detected to twelve turns on al total 190 turns.

• KIEAE Journal
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• 제13권6호
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• pp.17-22
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• 2013

Community has been defined as a group of interacting people living in a common location. The word is often used to refer to a group that is organized around common values and is attributed with social cohesion within a shared geographical location, generally in social units larger than a household. The word can also refer to the national community or global community. The word "community" is derived from the Old French communit$\acute{e}$ which is derived from the Latin communitas (cum, "with/together" + munus, "gift"), a broad term for fellowship or organized society. A sense of community refers to people's perception of interconnection and interdependence, shared responsibility, and common goals. Understanding a community entails having knowledge of community needs and resources, having respect for community members, and involving key community members in programs. But, on account of industrial development, At some point, we have individualism behavior. therefore, This study will achieve local community activation using school land.

• International Journal of Computer Science & Network Security
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• 제24권3호
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• pp.83-92
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• 2024

It is a common observation that whenever any patient arrives at the front desk of a hospital, outpatient clinic, or other health-associated centers, they have to first queue up in a line and wait to fill in their registration form to get admitted. The long waiting time without any status updates is the most common complaint, worrying health officials. In this paper, UrNext, a location-aware mobile-based solution using Bluetooth low-energy (BLE) technology, is presented to solve the problem. Recently, a technology-oriented method has been gaining popularity in solving the healthcare sector's problems, namely the Internet of Things (IoT). The implementation of this solution could be explained through a simple example that when a patient arrives at a clinic for her consultation. There, instead of having to wait in long lines, she will be greeted automatically, receive a push notification telling her that she has been admitted along with an estimated waiting time for her consultation session. This will not only provide the patients with a sense of freedom but would also reduce uncertainty levels that are generally observed, thus saving both time and money. This work aimed to improve clinics' quality of services and organize queues and minimize waiting times in clinics, leading to patient comfortability and reducing the burden on nurses and receptionists. The results demonstrated that the presented system was successful in its performance and helped achieve high usability.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제1호
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• pp.89-101
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• 2001

The purpose of this study ins to verify the characteristic location of Byungyoung Castle, physical type, inside spatial organization, and the scheme of Byungyoung Castle. The study utilizes historic literature, ancient maps related to Byungyoung Castle, topographical and cadastral maps which were published under the rule of Japanese Imperialism Castle, topographical and cadastral maps which were published under the rule of Japanese Imperialism and the topographical maps which were made recently by National Geographic Institute with various scales. The methodology of the study is to interpret the contents from the historic literature on the site map. The methodology of the study is to interpret the contents from the historic literature on the site map. The result of the study is as follows; Byungyoung Castle does duty as a defensive base for the entire country and has a specific character of location that has the dual function of a mountain fortress for national defense and of a village fortress for the town. Byungyoung Castle has four gates on four sides and has a oval shape very close to a circular form. The road construction inside the castle is composed basically of a cross shape. Byungyoung is located in the northwest area of this major road system. The private houses that lie along the north-south road are build up at the core area of the lower level and the town market built up around the south gate becomes the heart of life for the people. Schematically, it has the same pattern as regular village fortress, in that the houses for the guests and the houses for the public office are arranged to the east and the west. It is considered that there is certain functional parallel between Byungyoug Castle and Ulsan castle because there are no facilities for sacrificial rites no institutional budding.

• 한국컴퓨터게임학회논문지
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• 제31권4호
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• pp.29-36
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• 2018

본 논문은 모바일 게임과 게임하기의 변화를 통합적으로 살피기 위해 모바일 게임의 시공간적 특성을 미하일 바흐친(Mikhail Bakhtin)의 크로노토프(chronotope) 개념을 통해 고찰하는 것을 목적으로 한다. 소설에서 재현되는 시간과 공간 사이의 내적 연관을 지칭하는 개념인 크로노토프를 바탕으로 모바일 게임 플랫폼에서의 시공간 경험과 모바일 게임 텍스트의 재구성 간의 내적 연관을 살펴보았다. 모바일 게임은 플레이어라는 존재 기반의 혼종적 플랫폼을 통해 게임하기의 행위를 일상의 시공간과 중첩시키면서 플레이어의 의지를 바탕으로 지금-여기의 세계를 구축한다. 플레이어를 플랫폼으로 하는 모바일 게임의 크로노토프는 가상세계에 접속하는 것이 아닌, 지금-여기라는 현재의 공간에서 생성되는 것이다. 본고에서는 이와 같은 모바일 게임의 크로노토프 재현 양상을 역할수행 게임과 위치기반 게임을 중심으로 살펴보았다. 모바일 역할수행 게임에서는 자동 전투 시스템을 중심으로 플레이어가 느슨한 거리감을 유지면서 서사적이고 관계적인 경험이 약화된 탈역사적 크로노토프가 나타난다. 위치기반 게임에서는 가상세계와 실제세계의 중첩을 통해 유희적 의미를 발생시키는 플레이어가 주도하는 생성의 크로노토프가 나타난다.

• 한국과학예술포럼
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• 제27권
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• pp.101-114
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• 2017

본 논문은 도시 공공공간, 조명 디자인과 장소성과의 관련성에 의거하여, 도시 디자인에서 장소성을 표현하는 도시 조명디자인의 유형을 분류하고 유형별 특성을 파악하는데 그 목적이 있다. 우선 선행 연구고찰을 토대로, 공공공간의 조명디자인의 장소성 평가를 위한 6개 디자인 평가요소를 추출하였고, 12개의 우수 조명 디자인 사례에 대해 분석하였다. 연구결과 12개 사례에 대해 기본형, 은유플롯형, 인터랙티브형, 미디어 복합형 등의 4개 유형으로 공공공간 조명디자인을 분류하였고 각 유형별로 주도적인 디자인 평가요소와 그 특성을 파악하였다. 연구 결과로는, 첫째, 기능성, 지속 가능성, 심미성은 도시 공공공간 조명을 통한 장소성을 실현시키는 기본적 요소라고 할 수 있다. 둘째, "은유 플롯형"에 속한 사례는 6가지이며, 이 유형의 사례는 특정 지역에 대한 테마 즉 스토리텔링의 발굴이기 때문에, 조명 디자인에서도 뚜렷하고 명확한 지역 정체성을 형성할 수 있다. 셋째, "인터랙티브형"과 "미디어복합형"은, 새로운 매개 기술 및 최첨단의 조명 방식이 개입되었기 때문에, 도시 조명디자인의 의미와 외연이 광범위하게 확장되었다고 할 수 있다. 연구 결과를 통하여 도시 공공공간의 조명디자인의 유형과 특성을 파악하여 장소성을 강화하고 도시 이미지를 향상시킬 수 있는 도시 공공공간의 조명디자인 개발을 위한 기초자료를 제공하고자 한다.

• 한국조경학회지
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• 제15권2호
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• pp.115-137
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• 1987

The townscapes of “Bu” and “Mok” in the Yi Dynasty, Showing the typical landscape characteristics of Korean pre-industrial city, were influenced by the two major socio - cultural norms, One of Which is the “Pung - su theory” a traditional religious system on human settlements, the other is the “Churyegogong system” ; a principle of the traditional oriental city planning. The former exerted main influencs on the location of towns, its external Boundaries of domain and its direction, by natural topographic features in macro perspective, and the latter on the inner parts of townscapes, i. e., the landscape system of ‘center’, ‘boundary’, ‘direction’, and ‘domain’, as representations of administrative and Socio-cultural structures of that era, in micro perspective compared with the former. The systems of Korean old townscapes can be summurized as followhg brief paradigm, with general and .case studies. And the constituents of the paradigm, such as center, boundary, direction and domain, are inferred to reinforce the “sense of place” in townscapes, with their ‘physical appearence’, ‘meaning’, and ‘social activities’.

• Coupled systems mechanics
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• 제3권3호
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• pp.291-304
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• 2014

Paper discusess a dynamic engineering problem of a mass attached to a pendulum sliding along a cable. In this problem the pendulum mass and the cable are coupled together in a model described by a system of differential algebraic equations (DAE). In the paper we have presented formulation of the system of differential equations that models the problem and determination of the initial conditions. The developed model is general in a sense of free choice of support location, elastic cable properties, pendulum length and inclusion of braking forces. Examples illustrate and validate the model.