• Title/Summary/Keyword: Lighting

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Analysis of Energy Consumption Pattern and Greenhouse Gas Emission in the Academic Facility (대학에서의 에너지 소비패턴 및 온실가스 배출현황 분석)

  • Kim, Jin-Sik;Lee, Kyoung-Bin;Lee, Im-Hack;Kim, Shin-Do
    • Journal of Korean Society of Environmental Engineers
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    • v.34 no.9
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    • pp.604-612
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    • 2012
  • Self-management plan for GHG (Greenhouse Gas) reduction should be prepared in academic facilities, which occupy a large amount of energy consumption. In this study, a university was chosen as one of the major academic facilities and its energy consuming pattern and GHG emission were analyzed. The results have shown that annual $CO_2$ emission from university buildings was 10,452 ton-$CO_2$ (0.65 ton-$CO_2/m^2$), and dependent upon 78.0% electricity, 20.5% LNG and 1.5% oil, respectively as energy sources. According to more detail analysis by usage of energy consumption, appliances occupies 36.7% followed by gas heating (18.9%), lighting (18.6%), heating with electricity (12.5%), cooling with electricity (10.2%), transportation (1.5%), gas cooling (1.2%) and cooking (0.4%). Furthermore, annual $CO_2$ emissions per unit area and a student by electricity usage were evaluated to 51.30 kg-$CO_2/m^2$ and 981.86 kg-$CO_2$/capita, respectively and those by LNG usage were 14.61 kg-$CO_2/m^2$ and 241.01 kg-$CO_2$/capita.

Cinematic Method on Kihachiro Kawamoto's works (카와모토 키하치로 작품의 영화적 표현 기법)

  • Park, Gi-Ryung
    • Cartoon and Animation Studies
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    • s.25
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    • pp.65-85
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    • 2011
  • In this essay, Japanese animator Kihachiro Kawamoto's works will be analyzed. Kawamoto made Breaking of Branches is Forbidden in 1968 and was famous for puppet animation as The Demon(1972), Dojoji Temple(1976) and House of Flame(1979) used Japanese traditional elements in his works. The themes are the agony and despair of a human being, and the narrative is developed dramatically. This is possible through a variety of techniques in animation expression. For example of this are the movement of the puppets and the lighting. In the case of Kawamoto's works, above all, it can be said that the dramatic development depends on editing - the relation of each shot to the next shot. Therefore, this analysis will focus especially on the editing of The Demon, Dojoji Temple and House of Flame. Kawamoto's method of editing will be examed and the analysis will confirm that classical continuity edting by controling space and time has been used. Namely that the effect of editing enhances dramatic development of the narrative on Kawamoto's works. This study will also discuss the benefit of using cinematic methods of in animation. Eventhough it is not essential, Kawamoto chooses cinematic method editing. Through their use, he is able to absorb the audience in the traditional Japanese world which ordinarily could be too difficult to understand through puppet animation.

Analysis of visible light communication system using 15 watt LED and 40 watt solar panel (소형 창고형 공장 적용을 고려한 15와트 LED 조명과 40와트 태양광 패널을 활용한 가시광통신 송수신 시스템 분석)

  • Woo, Deok Gun;Mariappan, Vinayagam;Park, Jong Yong;Lee, Jong Hyeok;Kim, Young Min;Cha, Jae Sang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.5
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    • pp.608-614
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    • 2018
  • In addition to the diffusion of ICT technology, various protocols of short range wireless communication technology are being applied for efficient information operation. However, due to limitations of short-range wireless communication, communication is not smooth in places where frequency environment is poor, such as frequency confusion and warehouse type factory. When an alternative is needed. The development of LED technology and expansion of infrastructure through LED based visible light communication is attracting attention as an alternative and spreading the usage in wide range now a days. In addition, the infrastructure has been expanded with solar panels in response to the development of smarthome built-in with renewable energy. In this situation, visible light communication using PD has been limitedly applied in a near environment where the receiving angle of the PD and the ambient light ensure the LoS and the influence of the ambient light is small. In order to solve this problem, we have implemented visible light communication using LED lighting with large current infrastructure and solar panel with large receiving area, and proposed a circuit for restoring accurate data even in ambient light. Through this study results, it is expected that visible light communication can be more widely used and this result used as the base data for visible light communication research using the solar panel as the receiver.

A study on development of RGB color variable optical ID module considering smart factory environment (스마트 팩토리 환경을 고려한 RGB 컬러 가변형 광 ID 모듈개발 연구)

  • Lee, Min-Ho;Timur, Khudaybergenov;Lee, Beom-Hee;Cho, Ju-Phil;Cha, Jae-Sang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.5
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    • pp.623-629
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    • 2018
  • Smart Factory is a concept of automatic production system of machines by the fusion of ICT and manufacturing. As a base technology for realizing such a smart factory, there is an increasing interest in a low-power environmentally friendly LED lighting system, and researches on so-called optical ID related application technologies such as communication using a LED and position recognition are actively underway. In this paper, We have proposed a system that can reliably identify logistics location and additional information without being affected by electromagnetic interference such as high voltage, high current, and generator in the plant. Through the basic experiment, we confirmed the applicability of the color ID recognition rate from 98.8% to 93.8% according to the eight color variations in the short distance.

Skin Color Region Segmentation using classified 3D skin (계층화된 3차원 피부색 모델을 이용한 피부색 분할)

  • Park, Gyeong-Mi;Yoon, Ga-Rim;Kim, Young-Bong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.8
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    • pp.1809-1818
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    • 2010
  • In order to detect the skin color area from input images, many prior researches have divided an image into the pixels having a skin color and the other pixels. In a still image or videos, it is very difficult to exactly extract the skin pixels because lighting condition and makeup generate a various variations of skin color. In this thesis, we propose a method that improves its performance using hierarchical merging of 3D skin color model and context informations for the images having various difficulties. We first make 3D color histogram distributions using skin color pixels from many YCbCr color images and then divide the color space into 3 layers including skin color region(Skin), non-skin color region(Non-skin), skin color candidate region (Skinness). When we segment the skin color region from an image, skin color pixel and non-skin color pixels are determined to skin region and non-skin region respectively. If a pixel is belong to Skinness color region, the pixels are divided into skin region or non-skin region according to the context information of its neighbors. Our proposed method can help to efficiently segment the skin color regions from images having many distorted skin colors and similar skin colors.

Traffic Safety Technology Proposal for Chungcheong Region (충청권 교통사고 특성을 고려한 교통안전기술 제안)

  • Cho, Choong-Yeon;Kim, Yun-Sik;Lee, Yong-Jun;Lee, Min-Jae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.2
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    • pp.1524-1532
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    • 2015
  • This study analyzed traffic accident characteristics in Chungcheong Region through the factor analysis, cluster analysis and questionnaire survey using traffic accident analysis data for Chungcheong Region in order to improve Korea's traffic safety level. Based on the analysis results, this study suggests traffic safety technologies suitable for the situation of Chungcheong Region. According to the results of the questionnaire survey carried out for transporters in Chungcheong Region, 'the passage of pedestrians and aged people' and 'a problem of lacking visibility' were the biggest threatening factors of major traffic accidents in Chungcheong Region. The facilities required the most were 'lighting equipment in driving at night', and the expected effect by the equipment installation was high. As a result of the factor analysis and cluster analysis using the traffic accident analysis data, traffic accident risk by city type in Chungcheong Region was higher in rural areas, compared to urban areas. Especially, this study confirmed the risks of pedestrian and agricultural machine traffic accidents were high. Therefore, this study suggests three technologies to improve traffic safety level in Chungcheong Region, based on the analysis results.

A Study on the Safety Estimation of Wiring Connection Connector Manufactured by Housing Type (하우징 형태(Housing Type)로 제작된 배선 연결 커넥터의 안전성 평가에 관한 연구)

  • Choi, Chung-Seog
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.59 no.4
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    • pp.462-466
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    • 2010
  • The purpose of this study is to evaluate the safety of a wire connector fabricated for the effective installation of a lighting fixture including its contact resistance, insulation resistance, withstanding voltage characteristics, etc., and to provide the basis for the analysis and judgment of PL(Product Liability) dispute by presenting a damage pattern due to a general flame and overcurrent. This study applied the Korean Standard (KS) for the incombustibility test of the connector using a general flame and performed an overcurrent characteristics test of the connector using PCITS (Primary Current Injection Test System). The contact resistance of the housing connector was measured using a high resistance meter and the insulation resistance was measured using a multimeter. In addition, a supply voltage of AC 1,500V for testing the withstanding voltage characteristics was applied to both ends of the connector. Measurement was performed on 5 specimens and the measured values were used as a basis for judgment. Since the connector is fabricated in the form of a housing, it can be connected and separated easily and has a structure that allows no foreign material to enter. In addition, since it has a structure that allows wires to be connected only when their polarity is identical, any misconnection that may occur during installation can be prevented. When the incombustibility test was performed by applying a general flame to the connector, it showed outstanding incombustibility characteristics and the blade and blade holder connected to the housing remained firmly secured even after the insulation sheath (PVC) was completely destroyed by fire. In addition, the mechanism of the damaged connecting wire showed a comparatively uniform carbonization pattern and it was found that some residual melted insulation material was attached to both ends. In the accelerated life test (ALT) to which approximately 500% of the rated current was applied, the connector damage proceeded in the order of white smoke generation, wire separation, spark occurrence and carbonization. That is, it could be seen that the connector damaged by overcurrent lost its own metallic color with traces of discoloration and carbonization. The contact resistance of the connector at a normal state was 2.164mV/A on average. The contact resistance measured after the high temperature test was 3.258mV/A. In addition, the insulation resistance after the temperature test was completed was greater than $10G\Omega$ and the withstanding voltage test result showed that no insulation breakdown occurred to all specimens showing stable withstanding voltage and insulation resistance characteristics.

Effects of Regulate in Feed Intakes on Performance and Meat Quality in Old Laying Hens (산란성계에서 사료 급이량 조절이 생산성과 계육품질에 미치는 영향)

  • Kang, Hwan Ku;Kim, Chan Ho
    • Korean Journal of Poultry Science
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    • v.42 no.3
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    • pp.205-214
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    • 2015
  • This study aimed to investigate the effects of reducing feed intake on performance and meat quality in old laying hens. A total of 200 Hy-Line Brown laying hens (100 weeks old) were randomly allotted to five dietary treatments: control (100% daily feed intake), 90%, 60%, 50%, and 20% daily feed intake. Each treatment was replicated four times with 10 birds per replication and two birds per cage. Ten-bird units were arranged according to a randomized block design. The feeding trial lasted for 4 weeks under a 16L:8D lighting regimen. The results indicated that the daily feed intake correlated with hen-day egg production and feed conversion ratios (P<0.05). The carcass yields and partial ratios were also correlated with daily feed intake (P<0.05). The levels of leukocytes (without basophils) were higher in the 50% and 20% daily feed intake groups than in the other groups. The concentrations of dry matter, crude ash, crude fat, and crude protein, water holding capacity, cooking loss, and fatty acids in the breast meat did not decrease as the daily feed intake decreased. In conclusion, reducing daily feed intake decreased laying performance and carcass yield but had no effect on breast meat quality.

A New Spray Chrysanthemum Cultivar, 'Blue Hope' with Anemone Type and White Petals for Cut Flower (백색 아네모네형 절화용 스프레이국화 '블루호프' 육성)

  • Hwang, Ju-Chean;Chin, Young-Don;Chung, Yong-Mo;Kim, Su-Kyeong;Ro, Chi-Woong;Jeong, Byoung Ryong
    • Horticultural Science & Technology
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    • v.31 no.1
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    • pp.123-127
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    • 2013
  • A new spray chrysanthemum (Dendranthema grandiflorum) 'Blue Hope' was bred by the Flower Research Institute, Gyeongsangnam-do Agricultural Research & Extension Services in 2009. The cultivar 'Blue Hope' was initially derived from the cross in 2005 between 'Ford', a spray chrysanthemum cultivar, with white anemone type, and 'Chopin', a spray chrysanthemum cultivar with white anemone type. The cultivar has anemone type with white petals. After the evaluation of the characteristics under shade culture in summer and retarding culture in spring and consecutive selection from 2007 to 2009, 'Blue Hope' was selected finality. The natural flowering time of 'Blue Hope' was October 24th, and year-round flowering is possible by shading or lighting treatment. The growth of plant was very vigorous and response time 6.5 weeks. The diameter of flower was 4.9 cm. Number of flowers per stem was 19.1 in autumn. Days to flowering under the short day treatment was about 45 in spring and its vase life was 23.8 days in the autumn season. This cultivar was resistance white rust and consumer's preference of new spray is high level than the control.

A Realtime Expression Control for Realistic 3D Facial Animation (현실감 있는 3차원 얼굴 애니메이션을 위한 실시간 표정 제어)

  • Kim Jung-Gi;Min Kyong-Pil;Chun Jun-Chul;Choi Yong-Gil
    • Journal of Internet Computing and Services
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    • v.7 no.2
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    • pp.23-35
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    • 2006
  • This work presents o novel method which extract facial region und features from motion picture automatically and controls the 3D facial expression in real time. To txtract facial region and facial feature points from each color frame of motion pictures a new nonparametric skin color model is proposed rather than using parametric skin color model. Conventionally used parametric skin color models, which presents facial distribution as gaussian-type, have lack of robustness for varying lighting conditions. Thus it needs additional work to extract exact facial region from face images. To resolve the limitation of current skin color model, we exploit the Hue-Tint chrominance components and represent the skin chrominance distribution as a linear function, which can reduce error for detecting facial region. Moreover, the minimal facial feature positions detected by the proposed skin model are adjusted by using edge information of the detected facial region along with the proportions of the face. To produce the realistic facial expression, we adopt Water's linear muscle model and apply the extended version of Water's muscles to variation of the facial features of the 3D face. The experiments show that the proposed approach efficiently detects facial feature points and naturally controls the facial expression of the 3D face model.

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