• Title/Summary/Keyword: light elements

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A New Way to Manufacture Ultra Light Metal Structures (초경량 금속구조재의 제작을 위한 새로운 방안)

  • Kang, Ki-Ju;Jeon, Gye-Po;Nah, Seong-Jun;Ju, Bo-Seong;Hong, Nam-Ho
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.28 no.3
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    • pp.296-303
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    • 2004
  • Recently, the ultra light metal structure with periodic and three dimensional truss elements takes attention because of its multi-functionality and substantial heat resistance. However, the complicated fabrication process leading to high cost has been a major obstacle to wide applications. In this paper, a new idea to construct an ultra light structure with periodic, three dimensional truss using metal wires is presented. To prove the practical validity, a Kagome-like structure was fabricated from stamped wires and punched face sheets. It was assembled by soldering. Through three-point bending and compression tests, the strength was evaluated and compared with the theory.

A Study on the Headway Setting of Target Line for Light Rail Transit (경량전철 목표노선의 운전시격 설정에 관한 연구)

  • 정락교;김영석
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.53 no.1
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    • pp.8-15
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    • 2004
  • In order to scheme the optimal assumption that satisfies the travel demand, it should be review the elements that affect on determining the headway, which are signal systems, line shape, vehicle(Light Rail Transit) performance, and so on. When applying the conventional signal systems, including Fixed Block System and Moving Block System, It was confirmed whether or not satisfy the requirements of target line with the way of a numerical formula reviewing and Train performance Simulation on the main line, station, depot, and so forth. Therefore, it should be used as references that decide target line and each sub-system after identifying the compliances for Minimum Headway to Moving Block System.

Day and night license plate detection using tail-light color and image features of license plate in driving road images

  • Kim, Lok-Young;Choi, Yeong-Woo
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.7
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    • pp.25-32
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    • 2015
  • In this paper, we propose a license plate detection method of running cars in various road images. The proposed method first classifies the road image into day and night images to improve detection accuracy, and then the tail-light regions are detected by finding red color areas in RGB color space. The candidate regions of the license plate areas are detected by using symmetrical property, size, width and variance of the tail-light regions, and to find the license plate areas of the various sizes the morphological operations with adaptive size structuring elements are applied. Finally, the plate area is verified and confirmed with the geometrical and image features of the license plate areas. The proposed method was tested with the various road images and the detection rates (precisions) of 84.2% of day images and 87.4% of night images were achieved.

Novel Current Driving Circuit for Active Matrix Organic Light Emitting Diode

  • Yang, Yil-Suk;Roh, Tae-Moon;Lee, Dae-Woo;Kwon, Woo-H.;Kim, Jong-Dae
    • ETRI Journal
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    • v.26 no.5
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    • pp.509-511
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    • 2004
  • This paper describes a novel current driving circuit for an active matrix organic light emitting diode (AMOLED). The proposed current driving circuit has a lower power consumption and higher chip density for the AMOLED display compared with the conventional one because all elements operate at a normal voltage and are shielded from the high voltage of the panel. The chip size and power consumption of the current driving circuit for an AMOLED can be improved by about 30 to 40% and 10 to 20%, respectively, compared with the conventional one.

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Principles and Applications of Non-Thermal Technologies for Meat Decontamination

  • Yewon Lee;Yohan Yoon
    • Food Science of Animal Resources
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    • v.44 no.1
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    • pp.19-38
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    • 2024
  • Meat contains high-value protein compounds that might degrade as a result of oxidation and microbial contamination. Additionally, various pathogenic and spoilage microorganisms can grow in meat. Moreover, contamination with pathogenic microorganisms above the infectious dose has caused foodborne illness outbreaks. To decrease the microbial population, traditional meat preservation methods such as thermal treatment and chemical disinfectants are used, but it may have limitations for the maintenance of meat quality or the consumers acceptance. Thus, non-thermal technologies (e.g., high-pressure processing, pulsed electric field, non-thermal plasma, pulsed light, supercritical carbon dioxide technology, ozone, irradiation, ultraviolet light, and ultrasound) have emerged to improve the shelf life and meat safety. Non-thermal technologies are becoming increasingly important because of their advantages in maintaining low temperature, meat nutrition, and short processing time. Especially, pulsed light and pulsed electric field treatment induce few sensory and physiological changes in high fat and protein meat products, making them suitable for the application. Many research results showed that these non-thermal technologies may keep meat fresh and maintain heat-sensitive elements in meat products.

Extract of design concepts for the application of 'Korean characteristics' to Architectural Interior Design (실내건축공간에 '한국성' 적용을 위한 디자인개념 추출)

  • Yoo Young-Heui
    • Korean Institute of Interior Design Journal
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    • v.14 no.5 s.52
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    • pp.44-51
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    • 2005
  • This study focuses 'Korean characteristics' in architectural interior design. In this study, some Korean characteristics was extracted by analysing traditional Korean spaces and as well as by considering the architectural interior spaces which are designed with Korean character since 1970. This paper started with differenciating the elements and principles that consist of space, and then classified the elements into 8 categories such as Spatial system, Enclosure system, Circulation system, Material system, Furnishing system, Light, Color, Context which are analysing frames. As a conclusion, the concepts of Korean characteristics are extracted and suggested as design concept with Korean characteristics by analysing the contents of each category. These concepts were presented with simple diagrams and supporting cases were also presented in this paper. The design concepts of 'Korean characteristics' are classified in the 25 concepts: Holonic composition, Transitional space, Hierarchy by floor level, Gradation of privacy, Changeability, Various central yards, Space with opened edges, Gray space, Continuity of space, Translucent wall, Folding-lifting wall, Skeleton, Abstract facet, Path as a message, Mild light, Multii-layered vista, Fluidity, framed scenery, Serial view, Interpenetrating Space, Harmony with nature, Organic interrelationship, Complementary Dual Structure, Temporal change of space, Hierarchical order.

A Study on the Characteristics of Space Organization of Richard Meier′s Museum Project (리차드 마이어(Richard Meier)의 미술관건축 공간구성 특성연구)

  • 이성훈
    • Korean Institute of Interior Design Journal
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    • no.26
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    • pp.79-87
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    • 2001
  • This study is focused on three major museum projects completed during 1990's by Richard Meier who is known as the romantic modernist as well as one of the architects who continue their devotion on completing the fourth dimensional spatial concept through the practice. Main focus of the study will be analyzing the space and design elements shown in the Museum of Contemporary Art (Barcelona, Spain, 1986-95), Museum of Television & Radio (Beverly Hills, CA., 1994-96) and the Getty Center(Los Angeles, CA., 1984-97), and find out the new meaning of museum design suggested by the architect. The analyzation was done based on the actual sight visits and through the acquired references. The museum designs done by Richard Meier show consistency between visual language, use of 'light, space and form' as the design elements to connect interior and exterior to create openness and harmony with surrounding condition. Additionally, greatness of the architectural elevation, efficient use of interconnecting space, adoption of natural light, affective use of the space, careful consideration to the exhibiting items, spread of information centers, balance between large and small exhibition spaces, and his concept on providing choices to the viewer within the museum are the main issues in designing the museum in order to give various spatial experience to the visitors.

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A Graphical User Interface Design for Surveillance and Security Robot (감시경계 로봇의 그래픽 사용자 인터페이스 설계)

  • Choi, Duck-Kyu;Lee, Chun-Woo;Lee, Choonjoo
    • The Journal of Korea Robotics Society
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    • v.10 no.1
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    • pp.24-32
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    • 2015
  • This paper introduces a graphical user interface design that is aimed to apply to the surveillance and security robot, which is the pilot program for the army unmanned light combat vehicle. It is essential to consider the activities of robot users under the changing security environment in order to design the efficient graphical user interface between user and robot to accomplish the designated mission. The proposed design approach firstly identifies the user activities to accomplish the mission in the standardized scenarios of military surveillance and security operation and then develops the hierarchy of the interface elements that are required to execute the tasks in the surveillance and security scenarios. The developed graphical user interface includes input control component, navigation component, information display component, and accordion and verified by the potential users from the various skilled levels with the military background. The assessment said that the newly developed user interface includes all the critical elements to execute the mission and is simpler and more intuitive compared to the legacy interface design that was more focused on the technical and functional information and informative to the system developing engineers rather than field users.

Some Factors of Influence on Paco Rabanne`s Fashion Design (파코 라반 복식의 조형적 특성에 영향을 미친 요인)

  • 최영옥
    • The Research Journal of the Costume Culture
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    • v.7 no.5
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    • pp.122-139
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    • 1999
  • Paco Rabanne, who has created experimental and prophetic avant-garde fashion by cutting edge techniques and revolutionary new materials, is known as one of the most influential fashion designer of modern times. The purpose of this study is to analyze the various factors, including some major artistic movements, which influenced on the formative characteristics of Paco Rabanne\`s fashion design. First, Paco Rabanne\`s fantastic new materials is also influenced by his study in architecture and his own fantasies -which other people can hardly imagine- during his early childhood. Second, light one of the most important element in Paco Ranbanne\`s fashion design, shows some influence of medieval symbols of love and salvation. Third, the artistic trends which influenced on Paco Rabanne\`s fashion include surrealism, opart, and kinetic art. His use of new materials and avant -garde style represents the influence of surrealism. his experimental use of waving plastics and glittering metal during his early period is especially related with opart and kinetic art in the early 1960s which emphasize the artistic effect of light and movement. Fourth, the geometrical figures like triangles, rectangles, and circles represent the influence of Egyptian architecture like pyramids and the geometrical characteristics of Eguptian art. Fifth, Paco Rabanne\`s distinctive use of metal chains in his fashion shows the influence of the chain mail hauberk, the medieval knightly armour. By using the medieval material Paco Rabanne properly expressed the modern person\`s pain and suffering. Sixth, the ethnic elements of Egypt, Africa, Spain, and Japan reflect the experience in his former lives he insists he lived. The ethnic elements of his dresses emphasize the natural vitality and inheritance from the past.

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Comparative Study of Emotion Evaluation Based on Lighting Scenario of Office, Meeting Room, Lounge, and OA Room (사무실, 회의실, 휴게실, OA실의 조명 시나리오에 따른 감성평가 비교 연구 - 동·서양인을 대상으로 -)

  • Lee, Min-Jin;Cho, Mee-Ryoung;Ko, Jae-Kyu;Kim, Ju-Hyun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.27 no.9
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    • pp.23-35
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    • 2013
  • In this study, we collected the emotion vocabulary novel related to the LED system light emotion and the existing terms through previous research, targeting professionals and KJ method, we selected emotion term of 35 kinds. Targeting this east Foreigner, we compared the emotion evaluation by changing the lighting elements in accordance office, meeting room, lounge, the OA room different behavior patterns. The results, showing the difference between the results of emotion existing research generally derived factors three axes "future, functionality" See, "stability", "activity". As a result of the comparison of the emotion of the East and the West, the Oriental, functional aspects of the LED system light of space office, meeting room, lounge is drawn most, On the other hand, Westerners, come up, stable surface shows the difference in accidentally. Based on these results, the future, and tries to utilized to evaluate the emotion reaction of the illumination elements each Test-Bed actual.