• 논리연구
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• 제15권1호
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• pp.85-107
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• 2012

본 논문은 반 프라쎈의 뉴턴 시공간에 대한 해석에 기초한 경험동등성 논변을 비판한다. 필자의 주장은 반 프라쎈이 시공간에 대한 오해에서 절대속도라는 뉴턴 시공간이 가지는 여분의 구조를 통해 부적절한 비판을 낳고 있다는 것이다. 반 프라쎈의 경험동등성 논변은 모형의 다양한 측면을 무시한 뉴턴 시공간에 대한 부주의한 해석에 근거한다.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2004년도 춘계학술발표대회 논문집
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• pp.176-179
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• 2004

Space is comprised by the movements of human beings, and draws a complex locus within it. That form seems to be complex of movement around in all directions of space axis, and be ever-changing process as time goes by. Although Human are able to move uninhibitedly, the movements are restricted to a narrow sphere during locomotion. However, the pattern of these movements delineates a certain frame within the space, and provides not only visual effects but also relevance tomovement itself. Also, critically dividing and organizing this sphere is what is realized into this tangible indoor space. This study recognized importance of human being as a core of making indoor space and brought out experimental approach on relationship human with space, and visually perceptual standpoint. And this presented the recent possibility of action and attitude though sight and walking by arranging space on the basis of modern artists' perception of human body.

• Communications for Statistical Applications and Methods
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• 제20권1호
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• pp.53-62
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• 2013

This study focuses on spatial/temporal relationship deaths caused by Human Immunodeficiency Virus (HIV) and Alcohol Use Disorder (AUD). Several studies have found links between these two diseases. By looking for clusters in mortality of Alcohol and HIV related deaths this study contributes to the field through the identification of exact spatial/temporal time of high and low occurrence risks based on the observed over the expected number of deaths. This study does not provide political or social interpretations of the data. It merely wants to show where clusters are found.

• 지식경영연구
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• 제15권4호
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• pp.15-34
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• 2014

Creative problem solving has become an important issue in many fields. Among problems, dilemma need creative solutions. New creative and innovative problem solving strategies are required to handle the contradiction relations of the dilemma problems because most creative and innovative cases solved contradictions inherent in the dilemmas. Among various kinds of problem solving theories, TRIZ provides the concept of physical contradiction as a common problem solving principle in inventions and patents. In TRIZ, 4 separation principles solve the physical contradictions of given problems. The 4 separation principles are separation in time, separation in space, separation within a whole and its parts, and separation upon conditions. Despite this attention, an accurate definitions of the separation principles of TRIZ is missing from the literature. Thus, there have been several different interpretations about the separation principles of TRIZ. The different interpretations make problems more ambiguous to solve when the problem solvers apply the 4 separation principles. This research aims to fill the gap in several ways. First, this paper classify the types of contradiction relations and the contradiction solving dimensions based on the Butterfly model for contradiction solving. Second, this paper compares and analyzes each contradiction relation type with the Butterfly diagram. The contributions of this paper lies in reducing the problem space by recognizing the structures and the types of contradiction problems exactly.

• Journal of Astronomy and Space Sciences
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• 제12권2호
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• pp.179-195
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• 1995

RT Per has been known as a close binary of which the orbital period has unpredictably varied so far. Although there are no agreements with the working mechanism for the changes of the period, two interpretations have been suggested and waiting for to be tested: 1) light-time effects due to the unseen 3rd and 4rd bodies (Panchatsaram 1981), 2) Abrupt period-changes, due to internal variations of the system (e.g. mass transfer or mass loss) superimposing to the light-time effect by a 3rd body (Frieboes-Conde & Herczeg 1973). In the point of view that the former interprepation models could predict the behavior of the changes of the orbital period theoretically, we checked whether the recent observed times of minimum lights follow the perdictions by the first model or not. We confirmed that the observed times of minimum lights have followed the variations calculated by the light-times effects due to the 3rd and 4rd bodies suggested by Panchatsatam. In this paper a total of 626 times of minimum lights were reanalyzed in terms of the light-time effects by the 3rd and 4rd bodies. We concluded that the eclipsing pair in SVCam system moves in an elliptic orbit about center of mass of the triple system with a period of about $42.^y2$, while the mass center of the triplet is in light-time orbit about the center of mass of the quadruple system with a period of $120^y$. The mean masses deduced for the 3rd and 4rd bodies were $0.89m_\odot$ and $0.82m_\odot$, respectively.

• 대한전기학회논문지
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• 제36권4호
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• pp.252-258
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• 1987

Time periodic finite element solutions for sinusoidally excited electromagnetic field problems in moving media are presented. Solutions by the Galerkin method contain spurious oscillations when grid Peclet number is more than one. To suppress these oscillations an upwind finite element method using two different time periodic test functions is introduced. One is multiplied to second and first-order space derivative terma and the other to the time derivative term. Test functions are obtained from trial functions by adding or subtracting quadratic bias functions with appropriate scaling factors. Phase differences are considered between trial functions and bias functions. For simple interpretations of the phase differences, complex scaling factors are used. The proposed method is developed to give nodally exact solutions for uniform grid spacing in one dimensional problems. Based on the one dimensional results, a two dimensional upwinding scheme is also derived.

• 한국실내디자인학회논문집
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• 제13권5호
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• pp.74-81
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• 2004

The three basic elements of human life -clothing, food and shelter- had been evolved through different periods and cultural realms, as their spatial applications show distinct characteristics that are manifested through sensibilities only inherent to its specific culture. Especially in the interior spaces, possibilities to approach them in three-dimensional aspects allow formal characteristics to be expressed that are distinct to the country. Formal sensibilities embedded in interior space In Korea also follows such pattern, developed through various contemporary interpretations of Korean traditional formal sensibilities, including harmony with nature, simplicity, lightness, real and fake, and principle of harmony are being redefined by spatially expressed in contemporary language. That is, traditional formal sensibilitiesare filtered through various application methods such as composition, negotiation and modification, accommodating spatial manifestations to be not simply preserved nor replicated, but rather reconstructed through metaphor, symbol, abstraction and contrast. From this perspective, the Korean traditional formal sensibilitiesis not a notion fixed in the past, but a distinct perspectives evolving throughout periods of time that are constantly reconsidered and reinterpreted in our interior space. By examining Korean sensibilities manifested in interior space in the both diachronic aspects of tradition vs. contemporary, as well as synchronic aspects among various disciplines simultaneously, we would be able to generate a linkage to the dichotomous categories of tradition and contemporary.

• Journal of Astronomy and Space Sciences
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• 제28권2호
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• pp.109-116
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• 2011

The first presented BV light curves of BH UMa confirmed Krajci's (2005) result that BH UMa is an RR Lyr star that belongs to the RRc subgroup. The light curves showed a slight asymmetry of D = 0.453 with an amplitude of about $0.^m58$ in B, $0.^m47$ in V, and $0.^m11$ in B-V and with a small hump between $0.^p82$ and $0.^p86$. We determined nine new times of minimum light and eight times of maximum light. We also analyzed all of the available unanalyzed minimum timings and found for the first time that the period of BH UMa has varied dramatically in at least three independent sinusoidal ways superposed on a secularly downward parabola over 66 years. The secular period decreasing rate was obtained as $6.^d684{\times}10^{-8}y^{-1}$, corresponding to -0.58 s/century. The semi-amplitude and period for each of the three sinusoidal variations were ($0.^d058$, $14.^y44$), ($0.^d044$, $9.^y98$), and ($0.^d005$, $0.^y97$), respectively. It is uncertain whether the periodicity for the shortest period of $0.^y97$ is real or spurious. The secular period decrease, well consistent with those of the other RRc stars, could be considered as a natural result of the evolution of the BH UMa system. The two possible sinusoidal terms were interpreted as both two light-time effects due to two additional bodies orbiting BH UMa and combinations of random fluctuations in the pulsation period of BH UMa. Two interpretations were shortly discussed with related parameters.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.200-204
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• 2008

본 논문에서는 지능형 무인 운송 시스템의 위치 인식 문제를 풀기 위한 방법으로, 실외 환경에서 보이는 건물 혹은 건물 입구의 상대적 위치와 자세 추정이 가능한 파티클 필터 기반 3 차원 물체 인식 방법을 제안한다. 제안하는 파티클 필터에 기반한 인식 시스템은 다양한 인식 증거들을 연속 영상에서 융합 및 모델 매칭을 함으로써 강인한 3 차원 물체 인식 및 자세 추정이 가능하다. 제안하는 방법은, 적합한 인식 증거들을 수집/선택하고, 다양한 인식 증거들로 부터 나타나는 인식 대상의 자세를 3 차원 공간상의 확률적인 파티클로 표현하며, 파티클 필터링을 통하여 연속 영상 상의 다양한 인식 증거들을 융합하는 것을 특징으로 한다. 스테레오 카메라를 이용한 실험을 통하여, 제안하는 방법이 실외 건물의 기하학적 특정을 인식 증거로 활용한 효율적인 3 차원 인식 및 자세 추정을 수행하는 것은 보여준다.

• 교육시설 논문지
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• 제27권2호
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• pp.35-47
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• 2020

The need for communication is emphasized in decision making, design methods and processes for the educational environment that contain new curricula and learning methods. In this study, we tried to find the direction and agenda of learner-centered environment restructuring through the 'user-integrated platform' in which various subjects related to school space environment understand each other's position and overcome the barriers and prejudices of each sector. The project was planned in a 'bottom-up process' method that uncovered the singularities of the previous stage and led the main contents of the next stage. The various subjects who participated in the project shared their own experiences and different positions regarding the school space. At the workshop, the topics of the participating teams were divided into two categories. The teams in the category of the 'school culture and space' insisted innovation of 'the school culture' as a premise for the restructuring of the 'school space', and proposed schools with different interpretations of 'authority and rules of school', 'the meaning of learning and play' and 'the main character of school. The teams in the category of the 'school borders and spaces' focused on 'communication' and proposed schools containing 'emotional care of students', 'borders between schools and villages', 'village community schools', and 'interspace and niche time'. After the workshop, we were able to derive the direction and architectural strategy of the school space restructuring by analyzing the works of the participants. Through this study, we confirmed the possibility of translating user's ideas into the professional domain through careful planning, preparation, facilitation, and analysis in Participatory Design.