• 제목/요약/키워드: External representation

검색결과 128건 처리시간 0.031초

이침 요법이 맥박의 변화에 미치는 영향 (The Effect of Auricular Acupuncture on the Pulse Rate)

  • 장준혁;김지용
    • Journal of Acupuncture Research
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    • 제20권1호
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    • pp.97-103
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    • 2003
  • Objective : Auricular acupuncture is a method of treatment that involves needling the ear in order to produce relief of symptoms. This concept was first developed by P.Nogier, french doctor and referred to as somatotopic representation. Many authors have commented the fact that the vagus nerve supplies the external auditory and the concha. The aim of this randomised, single blind study was to investigate whether auricular acupuncture of the ear produced changes in the pulse rate, an indicator of vagal tone. Methods: 10 healthy man volunteers were divided into normal and epinephrine stimulation group. Then each group was divided into vagus area acupuncture and control area acupuncture group again. Epinephrine stimulation group was injected by epinephrine 0.3cc twice, first. All of them were needled in either the vagus area or control area of the ear, and pulse rate changes were measured by patient monitor over 1 hour. Results : In the epinephrine stimulation group, there was significant differences in the pulse rate change between vagus area acupuncture and control area acupuncture group. After injection of epinephrine, the basal pulse rate was increased 1.3~1.4 times in the control group. However, in the vagus area acupuncture group the basal pulse rate was increased only 1.1~1.2 times.

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<고령가 소년 살인사건>의 공간성 연구 (Representation of Space in A Brighter Summer Day)

  • 계운경
    • 한국콘텐츠학회논문지
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    • 제15권12호
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    • pp.121-128
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    • 2015
  • 본 연구는 <고령가 소년 살인사건>의 공간성에 관해 분석하는 연구이다. 그런데 공간성의 의미를 영화내부로 한정하는 것이 아니라 영화외부까지 확대하여 논의한다. 영화내부에는 샤오쓰의 살인사건이 발생하도록 이끈 폭력공간으로서의 사회, 집, 학교가 있다. 그리고 영화의 외부공간에는 내용과 형식을 통해 사회의 지배시스템에 저항하는 감독의 태도와 의지가 있고, 그것을 해석하는 관객의 공간이 있다. 관객은 감독의 의도가 있는 영화의 외부공간에서 합류하여 이 영화를 적극적으로 해석하고 스스로를 성찰하면서 사회참여의 기회를 가진다.

수리논술형 문제에 대한 초등학교 5학년 학생들의 문제해결력과 수학적 정당화 과정 분석 (An Analysis of Problem-solving Ability and Mathematical Justification of Mathematical Essay Problems of 5th Grade Students in Elementary School)

  • 김영숙;방정숙
    • 한국수학교육학회지시리즈A:수학교육
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    • 제48권2호
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    • pp.149-167
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    • 2009
  • This study was aimed to examine problem-solving ability of fifth graders on two types of mathematical essay problems, and to analyze the process of mathematical justification in solving the essay problems. For this purpose, a total of 14 mathematical essay problems were developed, in which half of the items were single tasks and the other half were data-provided tasks. Sixteen students with higher academic achievements in mathematics and the Korean language were chosen, and were given to solve the mathematical essay problems individually. They then were asked to justify their solution methods in groups of 4 and to reach a consensus through negotiation among group members. Students were good at understanding the given single tasks but they often revealed lack of logical thinking and representation. They also tended to use everyday language rather than mathematical language in explaining their solution processes. Some students experienced difficulty in understanding the meaning of data in the essay problems. With regard to mathematical justification, students employed more internal justification by experience or mathematical logic than external justification by authority. Given this, this paper includes implications for teachers on how they need to teach mathematics in order to foster students' logical thinking and communication.

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회전익 항공기 형상의 기체공력 특성에 관한 실험적 연구 (An Experimental Study of Fuselage Drag and Stability Characteristics of a Helicopter Configuration)

  • 오세윤;박금룡;이종건;안승기
    • 한국항공우주학회지
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    • 제33권9호
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    • pp.9-15
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    • 2005
  • 국방과학연구소 풍동실험실에서는 회전익 항공기 개발에 소요되는 관련 풍동시험 기법의 확립과 형상연구 관련 시험자료의 확보를 위한 실험적 연구를 수행하였다. 본 연구는 회전익 항공기 동체구성품의 형상조합에 따른 항력증분과 안정성 평가를 위한 공기역학적 특성의 추출을 목적으로 하였으며, 풍동시험에는 모듈화된 1:8 축척의 회전익 항공기 동체형상과 500 rpm으로 회전하는 로터허브의 부분모형이 사용되었다. 시험결과들을 기존의 유사 항공기 시험결과들과 비교하였으며, 기존 연구결과들과 잘 부합됨을 확인하였다.

철도 네트워크에서 직교 교차선로 표현을 위한 선로그래프의 개선 (Enhancement of Railway Graph for Representing Othogonal Railway Crossing in a Track Network)

  • 조동영
    • 컴퓨터교육학회논문지
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    • 제6권4호
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    • pp.61-69
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    • 2003
  • 선로그래프[6]는 철도 네트워크의 선로배정 문제를 표현하는 자료구조로써 내부선분과 외부선분의 개념을 갖는 연결그래프 구조이다. 선로그래프는 일반 그래프로는 나타낼 수 없는 철도 네트워크의 선로 연결방향을 표현할 수 있지만 여전히 직교 교차선로를 일관되게 표현하지는 못한다. 이 논문에서는 가상선분 개념을 도입해서 선로그래프를 확장함으로써 직교 교차선로를 포함하는 철도 네트워크의 모든 선로연결 구조를 일관되게 표현할 수 있는 방법을 설명하고, 확장된 선로그래프인 ERG(Extended Railway Graph)의 자료구조 표현방법과 경로배정 방법을 제안한다.

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공학수준 수상함 지휘무장통제체계 범용 모델 개발방안 연구 (On the Development of the Generic CFCS for Engineering Level Simulation of the Surface Ship)

  • 정영란;한웅기;김철호;김재익
    • 한국군사과학기술학회지
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    • 제14권3호
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    • pp.380-387
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    • 2011
  • In this paper, we considered the authoritative representation of Command and Fire Control System(CFCS) for the surface ship that was the engineering level model to develop system specifications and to analyze operational concepts on the concept design phase and to analyze military requirements, effectiveness and performance for the system. The engineering level model of CFCS can be used in simulation independently of the surface ship's type, and also it takes reuse, interoperability, and extension into consideration. The detailed sub-models, internal and external data interface, data flow among each sub-model, sensor and weapon models about the engineering level model of CFCS was defined. It was verified via engineering level simulations according to the V&V process.

일본 현대건축의 생성적 공간구현 특성 - SANAA, Ito Toyo, Sou Fujimoto의 사례를 중심으로 - (A Study of the Characteristics of the Space Realization based on Becoming thought in Contemporary Japanese Architecture - Focused on the Projects of SANAA, Ito Toyo, Sou Fujimoto -)

  • 전해주;김동진
    • 한국실내디자인학회논문집
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    • 제23권4호
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    • pp.72-82
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    • 2014
  • The Contemporary paradigm to understand the complexity and diversity is moving to 'Becoming' that taken place in reviewing at the relation of various concepts. In Japan, After the collapse of modern architecture has been declared 'Metabolism' was appeared. They tried to apply organism's metabolic system to buildings based on ecological thoughts. But Metaboilsm's projects had revealed limitations of representation that the city on the mechanical system became a huge scale. As a result, It caused a break the cultural context of the region in Japan. After then, Japanese Architects expressed a pluralistic aspects of modern society for the restoration of disconnected cultural context. From this perspective, The thought of 'becoming' is a new role for Contemporary Japanese Architect. This research is focused of projects of SANAA, Ito Toyo, Sou Fujimoto, because they have spatial thought about realizing the space through the ways organizing the various potential possibilities in the simple external form not stimulated. They are realize the 'becoming-space' within the architecture. This 'becoming-space' gives people in building the new characteristics and experience that potential interactions among user, architecture and nature. It is non-representational space not fixed, but changing organically and variably.

축소모델 기반 구조물의 동적해석 연구 (Study on the Dynamic Analysis Based on the Reduced System)

  • 김현기;조맹효
    • 한국전산구조공학회논문집
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    • 제21권5호
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    • pp.439-450
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    • 2008
  • 잘 구축된 축소시스템은 동하중을 받는 구조물의 거동을 정확하게 계산할 수 있으며, 유한요소 기반 동적해석에서 문제가 될 수 있는 계산시간과 전산자원의 문제를 해결할 수 있다. 본 연구에서는 축소모델 기반 동적해석 알고리즘을 개발하였고, 동적 축소모델의 구축을 위한 주자유도 선정방법을 제안하였다. 이 과정에서 기존 연구에서 신뢰성이 검증된 2단계 축소기법을 사용하여 중요 자유도를 선정하고, IRS 방법에 의해 최종 축소모델을 구축하였다. 이를 임의의 동하중을 받는 수치예제에 적용하고 전체시스템의 동적해석 결과와 비교하여 제안 방법의 신뢰성을 검증하였다.

Dissipation Inequality of LTI System Based on Pencil Model

  • Shibasato, Koki;Shiotsuki, Tetsuo;Kawaji, Shigeyasu
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1998년도 제13차 학술회의논문집
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    • pp.135-140
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    • 1998
  • The concept of dissipativity and passivity are of interest to us from a theoretical as well as a practical point of view. It is well known that the Riccati equation is derived from the dissipation inequality which expresses the fact that the system is dissipative; the energy stored inside the system doesn't exceed the amount of supply which flows into the system. The pencil model is regarded as a representation based on behavioral approach introduced by J.C. Willems. It has first order in the internal variable and zeroth order in the external variable. In general, any matrix pencil is transformed into a canonical form which is consist of several kind of sub-pencils, One of them has row full rank for $^\forall S\;\in\;\mathds{C}\;\bigcup{\infty}$, we call it under-determined mode of the model. In our opinion, most important properties of dynamical system lay in the mode. According to the properties of canonical form for pencil, it is shown that the storage function which characterizes the dissipativity of the system can be written as a LMI for the under-determined mode, if the system doesn't include impulse mode.

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현대 패션에 나타난 Fluid Form의 특성 연구 (A Study on the Characteristics of Fluid Form Expressed in the Modern Fashion)

  • 서승미
    • 복식문화연구
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    • 제19권4호
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    • pp.805-819
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    • 2011
  • In contemporary society, heterotopia is the law dominates thoughts and is the concept reconstituted spaces calls order in chaos. And that is the place which refuses the paradoxical and social custom and sometimes poses a danger and rise in rebel. The purpose of this study is to study how forms of clothing fluid form images are expressed in modern fashion develop body around in the spatial relationship between the body and its environment. The study method consider changed characterastics of fluid space through the heterotopia thinking system of Foucault Michel. Based on this method, the heterotopia space that appeared in the plastic arts in aspects of artistic significance and aesthetic value was examined. Based on the above discussion on modern fashion Fluid Form were expressed in any formative characteristics were considered. The results of this study are as follows. Fluidity is the transformed interaction. It expanded external representation of organic body structure and reconstructed flexible forms of dynamic structures continuously. Transformation is the new space structure. It constructed invisible transformation and developed convertible dress space by combining a variety of functional overlap and fold. Deconstruction was expressed structural forms, expanding the existing forms in the open structure which have ambiguous boundaries.