• 제목/요약/키워드: fingers’ moving distance

검색결과 4건 처리시간 0.018초

대면적 Multi busbar 모듈 전력 손실 저감을 위한 태양전지 설계 (Solar Cell Design for Large Area Multi Busbar Module Power Loss Reduction)

  • 김주휘;이재형
    • Current Photovoltaic Research
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    • 제11권1호
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    • pp.34-37
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    • 2023
  • Solar energy had become the main energy industry of renewable energy along with hydroelectric power generation. One of the technologies that contributed to the popularization of photovoltaic power and the decrease in the unit price of photovoltaic modules was the large-area solar cell. However, as the area increased, the light receiving area increased and the current value increased accordingly. Since power loss occurs when the current value was large, the number of busbar was increased to increase the current collection rate, and a technology to lower the current value through half-cutting was developed. The bus bar of the solar cell served as a passage through which the generated current was transmitted. This was because when the number of busbar decreases, the moving distance of electrons increased, so the amount of power generation decreases and when it increases, shadows occured. An important aspect of the electrode design was the optimal balance of these busbars and number of fingers. Therefore, in this study, the characteristics of the solar cell according to the number of front bus bars of the large-area solar cell were simulated using Griddler 2,5 pro. After selecting the number of busbar with the best characteristics, the difference was compared by varying the number of fingers and a better direction for the number of cutting was presented.

전화기 자판의 한글 입력 효율성 평가 모형 (A Model for evaluating the efficiency of inputting Hangul on a telephone keyboard)

  • 구민모;이만영
    • 정보처리학회논문지D
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    • 제8D권3호
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    • pp.295-304
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    • 2001
  • 전화기 한글자판 표준안은 객관적인 기준에 따라 결정되어야 한다. 타건수와 운지거리는 객관적으로 수량화할 수 있어서 대부분의 자판 설계자들이 인정할 수 있는 기준이기 때문에, 본 연구자들은 타건수와 운지거리의 측면에서 전화기 자판의 한글 입력 효율성을 평가하는 모형을 개발하였다. 이 모형의 특징은 다음과 같다. 첫째, 타건속도로 평가하는 다른 모형들과는 달리 타건수의 측면에서 자판의 입력 효율성을 평가한다. 둘째, 타건수를 계산하기 위해서 별도의 말모둠 자료를 사용하지 않고, 1000만 어절 규모의 <고려대학교 한국어 말모둠 1>에서 조사된 연관출현빈도를 직접적으로 사용한다. 셋째, 다른 모형들은 자판에 배정된 기본자모를 대상으로 효율성을 평가하지만 이 모형에서는 67개의 전체 자모집합을 대상으로 타건수를 계산한다. 넷째, 완성키, 채움키 및 받침키와 같은 음절기능키를 사용하는 자판과 이러한 음절기능키를 사용하지 않는 자판을 비교하고 평가할 수 있다. 그러나, 전화기 한글자판의 입력 효율성을 입력 효율성을 정확하게 평가하기 위해서는 타건수와 운지거리뿐만 아니라 논리적인 평가자료와 실험실 연구 결과들도 고려해야 할 것이다.

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가상 환경에서의 손동작을 사용한 물체 조작에 대한 시각적 피드백 시스템 (Visual Feedback System for Manipulating Objects Using Hand Motions in Virtual Reality Environment)

  • 서웅;권상모;임인성
    • 한국컴퓨터그래픽스학회논문지
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    • 제26권3호
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    • pp.9-19
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    • 2020
  • 최근 다양한 종류의 가상 현실 기기가 개발되면서 고전적인 사용자 입력 방식 이외에도 사용자의 신체 동작을 인식하여 현실감을 높이려는 기술에 관한 연구가 활발하게 진행되고 있다. 이러한 장치 중의 하나인 립모션 컨트롤러는 사용자의 손동작을 인식하여 가상 현실 환경에서 사용자의 손 모양을 실시간으로 나타낼 수 있다. 하지만 인식한 사용자의 손을 사용하여 가상 현실의 물체를 조작하면 종종 손이 물체를 통과하게 되는데, 이러한 상호작용은 실제 현실과는 거리감이 있다. 본 연구에서는 가상 현실에서 사용자의 손과 물체 간의 상호작용 현실감을 높이기 위한 시각적 피드백 시스템의 구축 방법을 제시한다. 가상의 현실에서 사용자의 손과 가상 물체가 충돌하는지 광선 추적법을 활용하여 정밀하게 검사하고, 충돌하였을 때 부호 거리 장과 역기구학을 통해 물체 내부로 들어간 사용자의 손가락 말단의 위치를 물체 표면 밖으로 이동시켜 사용자의 손을 재구성하는 과정을 통해 시각적 피드백을 준다. 이를 통해 실시간으로 가상 현실에서 현실감 있는 상호작용을 할 수 있다.

현대회화에서의 형태와 물질 -Digital Transfiguration에 관한 연구- (Digital painting: Image transfonnation, simulation, heterologie and transfonnation)

  • 정숙영
    • 조형예술학연구
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    • 제10권
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    • pp.161-181
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    • 2006
  • The words which appeared in my theoretical study and work are image transformation to digital painting, simulation, heterologie and transfiguration, etc. Firstly, let's look into 'digital era' or 'new media era'. Nowadays, the image world including painting within the rapid social and cultural change, which is called as digital era, is having the dramatic change. Together with the development of scientific technology, large number of events which was deemed to be impossible is happening as real in image world Moreover, these changes in image world is greatly influencing to our life. The word which compresses this change of image world and shows is 'digital'. Digit, which means fingers in Latin, indicates separately changing signal, and to be more narrow, it indicates the continual signal of '0' and ' 1' in computer. The opposite word is 'analogue'. As analogue is the word meaning 'infer' or 'similarity', it indicates the signal or form which continuously changes along the series of time when it is compared to digital. Instead of analogue, digital is embossed as a major ruler along the whole area of our current culture. In whole culture and art area, and in whole generalscience, digital is appearing as it has the modernism and importance. The prefix, 'digital', e.g. digital media, digital culture, digital design, digital philosophy, etc, is treated as the synonym of modernism and something new. This advent of digital results the innovative change to the image world, creates the new beauty experience which we could not experience before, and forecasts the formation of advanced art and expansion of creative area. Various intellectual activities using computer is developing the whole world with making the infrastructure. Computer in painting work immediately accomplishes the idea of painters, takes part in simulation work, contingency such as abrupt reversal, extraction, twisting, shaking, obscureness, overlapping, etc, and timing to stimulate the creativity of painters, and provides digital formative language which enables new visual experience to the audience. When the change of digital era, the image appeared in my work is shown in 'transfiguration' like drawing. The word, 'transfiguration' does not indicate the completed and fixed real substance but indicate endlessly moving and floating shape. Thus, this concept is opposite to the substantial consideration, so that various concepts which is able to replace this in accordance with the similar cases are also exist such as change, deterioration, mutation, deformity of appearance and morphing which is frequently used in computer as a technical word. These concepts are not clearly classified, and variably and complicatedly related. Transfiguration basically means the denial of "objectivity' and '(continual) stagnation' or deviation from those. This phenomenon is appeared through the all art schools of art ever since the realism is denied in the 19th century. It is called as 'deformation' in case of expressionism, futurism, cubism, etc, in the beginning of the century, which its former indication is mostly preserved within the process of structural deviation and which has the realistic limit which should be preserved. On the contrary, dramatic transfiguration which has been showing in the modern era through surrealism is different in the point that dramatic transfiguration tends to show the deterioration and deviation rather than the preservation of indicated object. From this point, transfiguration coming out from morphing using computer deteriorates and hides the reality and furthermore, it replaces the 'reality'. Moreover, transfiguration is closely approached to the world of fake or 'imaginary' simulation world of Baudrillard. According to Baudrillard, the image hides and deteriorates the reality, and furthermore, expresses 'not existing' to 'imaginary' under the name of transfiguration. Certain reality, that is, image which is absent from the reality is created and overflowed, so that it finally replaces the reality. This is simulation as it is said by Baudrillard. In turn, Georges Bataille discusses about the image which is produced by digital technology in terms of heterologie. Image of heterologie is the visual signal which is established with the media. Image of media is to have the continuous characteristics of produce, extinction, and transformation, and its clear boundary between images becomes meaningless. The meaning of composition, excess, violation, etc of digital image is explained to heterological study or heteologie suggested as important meaning of Georges Bataille who is a heretic philosopher. As the form and image of mutation shows the shape in accordance with mechanical production, heterologie is introduced as very low materialism (or bas materialisme), in this theory. Heterologie as low materialism which is gradually changing is developing as a different concept and analysis because of the change of time in the late 20s century beside high or low meaning. Including my image, all images non-standardizes and transforms the code. However, reappearance and non-standardization of this code does not seem to be simple. The problem of transformation caused by transfiguration which appears in my digital drawing painting, simulation, heterologie, etc, are the continual problems. Moreover, the subject such as existence of human being, distance from the real life, politics and social problems are being extended to actual research and various expressing work. Especially, individual image world is established by digital painting transfiguration technique, and its change and review start to have the durability. The consciousness of observers who look at the image is changing the subject. Together with theoretical research, researchers are to establish the first step to approach to various image change of digital era painting through transfiguration technique using our realistic and historical image.

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