• 한국멀티미디어학회논문지
• /
• 제25권6호
• /
• pp.866-877
• /
• 2022

With respect to the advent of realistic media, the so-called future cinema theory or the theory of the end of cinema that cinema will be transformed by the advent of realistic media, or that realistic media will expel film media and replace them are being put forward as if they were orthodoxy. Therefore, this paper argues that the future cinematic theory and the theory of the end of cinema the cinema are inferred from the false premise that the superiority and inferiority relationship and substitute relationship established only between video media of the same type with the same properties are also established even between realistic media and film media, which have different properties. And it is concluded that realistic media and film media will coexist because they have different properties, functions, uses, and utilities.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2004년도 ICCAS
• /
• pp.767-771
• /
• 2004

In this paper the performance of some control theory-based Active Queue Management (AQM) methods are improved and investigated through simulation. The simulation scenario is considered to be closely realistic, in which the traffic is mainly due to http sessions. The results show the best performance of PID controller with respect to the others in good queue regulation as well as high link utilization and low delay metrics.

• 문화기술의 융합
• /
• 제9권5호
• /
• pp.909-917
• /
• 2023

기호학 이론은 현실주의 영화의 해석에 있어 매우 중요한 역할을 수행한다. 현실주의 영화는 현실 생활의 사건과 상황을 반영하는데 집중하며, 사실적인 묘사를 통해 관객에게 현실의 문제를 생각하도록 한다. 이 과정에서, 기호학 이론은 영화 속의 상징적인 요소와 그 배후에 함축되어 있는 깊은 의미를 해석할 수 있도록 유도한다. 본 연구는 리얼리즘 영화에 나타난 기호학적 특징을 소쉬르의 기의와 기표의 개념을 통해 접근하고, 특히 영화의 기호에 나타난 임의성과 2급 기호 체계(언어체계+신화 체계)가 영화의 기호적 함의와 영화의 문화적 의의에 작용하는 과정을 분석하고자 하였다. 그리고 <도가니>의 사례에서 적용되는 과정을 살펴봄으로써 영화 속의 함축적인 서사 구조, 의미 구조, 이데올로기가 사회를 반영하는 대중문화 속에서 드러내는 영향과 효과를 연구하고자 하였다. 연구를 통해 영화의 기호가 전달하고자 하는 잠재적 정보의 다채로운 가능성을 볼 수 있었으며, 기호학을 통해 창의적 견해와 해석을 가능성을 볼 수 있었다.

• International Journal of CAD/CAM
• /
• 제8권1호
• /
• pp.37-40
• /
• 2009

Based on the study of Digital Elevation Simplification Model and fractal theory, this paper put forward a new method to simulate complex terrain. That use simplified DEM data to construct terrain frame based on the quad tree at first, and then use fractal to generate the details of every node of the tree. In the process of construction, the LOD theory is used to simplify the terrain and get its typical data. According to the change of view position and direction, the paper gives a new way to judge the visibility of the surface patch. Experimental results show that this algorithm is simple, efficient and supports the real time dynamic simulation of terrain model.

• 한국융합학회논문지
• /
• 제10권2호
• /
• pp.255-260
• /
• 2019

최근 금연 캠페인에서 사실적 이미지가 적극적으로 활용되고 있다. 캠페인을 위한 매체로 활용되고 있는 포스터의 이미지 표현에 있어서도 마찬가지이다. 본 연구에서는 세계보건기구(WHO)에서 제작 배포한 금연 캠페인 포스터에서 서로 다른 시각적 표현 유형이 헬스커뮤니케이션에 미치는 영향을 살펴보았다. '일러스트 이미지'와 '사실적 이미지'가 계획된 행동 이론의 각 속성인 '금연행동 인식', '주관적 규범', '지각된 통제감'에 미치는 영향을 분석하였다. 이미지 표현 유형에 따라 '금연행동 인식'과 '주관적 규범'에 미치는 영향 차이가 있었으며, '지각된 통제감'에서는 두 이미지 표현 유형 사이에 의미 있는 차이가 발견되지 않았다. 본 연구를 통해 이미지 표현 유형 사이에 헬스커뮤니케이션 효과의 차이가 있음을 확인하였으며, 향후 헬스커뮤니케이션에서 효율적인 시각적 표현 방식을 모색하기 위해 디자인 분야와 예컨대 사회 심리학 등 다른 분야 간의 융합적 연구가 요구된다.

• 대한수학교육학회지:수학교육학연구
• /
• 제8권2호
• /
• pp.553-563
• /
• 1998

In this thesis, I examined Bruner's EIS theory from the viewpoint of epistemology based on Piaget's genetic epistemology. Although Bruner's ideal thought which insisted ‘to teach the structure’accepted Piaget's theory in the methodology of realization, it is different from Piaget in understanding knowledge. The difference is shown from understanding the meaning of ‘structure’. Piaget's concept of structure is something that has overcome the realistic viewpoint of the traditional epistemology and is reconstructed through endless self-regulative transformational process. However Bruner's is used as a realistic meaning as we can see in the Plato's recollection theory. Therefore Piaget's ‘stage of development’means the difference of structure which lies in the generative process and it includes the qualitive difference of level. On the other hand, Bruner, who is trying to translate and suggest the fixed structure to the children understood Piaget's stage of development as the difference in the ways of representation. Piaget's operational constructivism insists that the children should ‘construct’the knowledge through their activity, and especially in case of the lohico-mathematical recognition, the source should be internalized activity, that is, operation. In view of this assertion, Burner's idea which insists to accept the structure of knowledge as a fixed reality and to suggest the translated representation proper to the cognitive structure of the children to teach them, has a danger of emphasizing only the functional aspects to deliver the given knowledge ‘quickly’. And it also has the danger of damaging ‘the nature of the knowledge’in the translated knowledge.

• 대한토목학회논문집
• /
• 제5권2호
• /
• pp.59-66
• /
• 1985

동적(動的) 인장하중(引張荷重) 받는 콘크리트의 거동(擧動) 모델화(化)하기 위한 비선형(非線型) 구성이론(構成理論)이 제안(提案)되었다. 콘크리트의 정적(靜的) 인장거동(引張擧動)은 징세균열면처리론(徵細龜裂面處理論)에 의(依)하여 모델하고, 동적(動的) 인장하중(引張荷重)으로 인한 변형율속도효과(變形率速度效果)를 고려하기 위하여 유사변환을 이용(利用)하였다. 본(本) 모델의 결과(結果)를 현존하는 여러 동적(動的) 인장실험자료(引張實驗資料)와 비교하였다. 또한, 동적(動的) 인장하중(引張荷重)으로 인한 인장강도의 증가현상을 예측하기 위한 공식(公式)이 제안되었다. 본(本) 모델은 콘크리트구조물(構造物)의 좀 더 실제적인 동적(動的) 유한요소해석(有限要素解析)을 가능케 한다.

• 정보처리학회논문지B
• /
• 제15B권2호
• /
• pp.103-112
• /
• 2008

사실적인 컴퓨터 애니메이션 제작 시 종종 모션 캡쳐 기술이 사용된다. 모션 캡쳐 기술은 대상체의 운동을 측정해서 모델링한 운동 렌더링 결과를 그래픽스로 표현한다. 본 논문에서는 카메라를 사용해서 얻어진 2차원 영상 정보로부터 대상체의 3차원 운동을 측정하여 모델링하는 영상 기반 운동 렌더링 문제를 다룬다. 기존의 영상 기반 운동 렌더링 알고리즘은 계산량이 너무 많거나 정확도가 떨어지는 등의 단점이 있었다. 첫 번 째 단점은 장편 애니메이션 제작시 제작 시간이 너무 길어서 문제가 되고, 두 번 째 단점은 사실적인 애니메이션 구현시 사실감이 저하되는 문제를 야기 시킨다. 이와 같은 기존 방식의 단점을 보완하기 위하여 본 논문에서는 계산량이 적고 정확도가 높은 영상 기반 운동 렌더링 알고리즘을 제안한다. 본 논문에서 제안한 방식에서는 계산량이 적은 증분형 운동렌더링 알고리즘을 최적제어 이론의 시각에서 분석하여 정확도를 향상시키도록 개조한다. 본 방식을 광학식 모션 캡쳐 기술에 적용할 경우 표시자(marker)의 부착 없이도 모션 캡쳐가 가능하다는 부가적 인 장점 또한 얻을 수 있다.

• 대한수학교육학회지:수학교육학연구
• /
• 제9권1호
• /
• pp.81-109
• /
• 1999

This study aims to reflect the basic principles and teaching-teaming principles of Realistic Mathematics Education in order to suppose an way in which mathematics as an activity is carried out in primary school. The development of what is known as RME started almost thirty years ago. It is founded by Freudenthal and his colleagues at the former IOWO. Freudenthal stressed the idea of matheamatics as a human activity. According to him, the key principles of RME are as follows: guided reinvention and progressive mathematisation, level theory, and didactical phenomenology. This means that children have guided opportunities to reinvent mathematics by doing it and so the focal point should not be on mathematics as a closed system but on the process of mathematisation. There are different levels in learning process. One should let children make the transition from one level to the next level in the progress of mathematisation in realistic contexts. Here, contexts means that domain of reality, which in some particular learning process is disclosed to the learner in order to be mathematised. And the word of 'realistic' is related not just with the real world, but is related to the emphasis that RME puts on offering the students problem situations which they can imagine. Under the background of these principles, RME supposes the following five instruction principles: phenomenological exploration, bridging by vertical instruments, pupils' own constructions and productions, interactivity, and interwining of learning strands. In order to reflect how to realize these principles in practice, the teaming process of algorithms is illustrated. In this process, children follow a learning route that takes its inspiration from the history of mathematics or from their own informal knowledge and strategies. Considering long division, the first levee is associated with real-life activities such as sharing sweets among children. Here, children use their own strategies to solve context problems. The second level is entered when the same sweet problems is presented and a model of the situation is created. Then it is focused on finding shortcomings. Finally, the schema of division becomes a subject of investigation. Comparing realistic mathematics education with constructivistic mathematics education, there interaction, reflective thinking, conflict situation are many similarities but there are alsodifferences. They share the characteristics such as mathematics as a human activity, active learner, etc. But in RME, it is focused on the delicate balance between the spontaneity of children and the authority of teachers, and the development of long-term loaming process which is structured but flexible. In this respect two forms of mathematics education are different. Here, we learn how to develop mathematics curriculum that respects the theory of children on reality and at the same time the theory of mathematics experts. In order to connect the informal mathematics of children and formal mathematics, we need more teachers as researchers and more researchers as observers who try to find the mathematical informal notions of children and anticipate routes of children's learning through thought-experiment continuously.

• Structural Engineering and Mechanics
• /
• 제61권1호
• /
• pp.49-63
• /
• 2017

This paper presents an original hyperbolic (first present model) and parabolic (second present model) shear and normal deformation theory for the bending analysis to account for the effect of thickness stretching in functionally graded sandwich plates. Indeed, the number of unknown functions involved in these presents theories is only five, as opposed to six or even greater numbers in the case of other shear and normal deformation theories. The present theory accounts for both shear deformation and thickness stretching effects by a hyperbolic variation of ail displacements across the thickness and satisfies the stress-free boundary conditions on the upper and lower surfaces of the plate without requiring any shear correction factor. It is evident from the present analyses; the thickness stretching effect is more pronounced for thick plates and it needs to be taken into consideration in more physically realistic simulations. The numerical results are compared with 3D exact solution, quasi-3-dimensional solutions and with other higher-order shear deformation theories, and the superiority of the present theory can be noticed.