• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1999.04a
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• pp.54-57
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• 1999

플러그묘의 생육과 밀접한 관계를 갖는 플러그묘 개체군(이하 '묘개체군'이라 칭함) 내외에서의 미기상 요소는 기류속도의 영향을 크게 받는다. 식물묘공장과 같이 인공광을 이용한 반폐쇄 생태계에서 품질이 균일한 플러그묘 생산 시스템 개발을 목적으로 수행된 기초 연구에서 김과 고재(1996a, 1996b, 1996c, 1997), Kim 등(1996)은 플러그묘 생산용 풍동 설계 및 공기역학적 특성의 구명, 기류속도가 묘개체군 내외에서 기온ㆍ상대습도ㆍ포차ㆍ$CO_2$ 농도 분포에 미치는 영향, 묘개체군의 순광합성 속도 측정 등에 관한 연구 결과를 보고한 바 있다.(중략)

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.66 no.3
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• pp.135-138
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• 2017

This study analyzed with the case analysis of a series of processes from job analysis survey and results analysis, and academic achievement in order to transform the curriculum of existing courses of the NCS-based video broadcasting. Also this study analysed the existing curriculum and analyzed the trend of workforce trends and needs of the broadcasting content industry. Also through a needs analysis for the industry and alumni and students, video graphics, video editing and video directing were selected. In this paper it dealt mainly with respect to the video graphics in a dual job. Modeling capability into the unit through a job analysis, animation, effects and lighting were chosen accordingly based introduction of graphics and application of graphics were derived two courses and selected profiles and performance criteria. This training according to the NCS curriculum for students was evaluated based on the student's job was to investigate the learning ability.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1299_1300
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• 2009

We show results that examine about electrical properties of XLPE insulated 6.6kV cable termination by mechanical damage. The cable used to produce the cable termination is 6/10kV tray XLPE fire retardant electric cable (6/10kV TFR-CV $35SQMM{\times}1C$) which is domestically made. We apply force to XLPE insulator and made mechanical defect using knife. Defected samples go through the withstand voltage test according to the IEEE std. 48 test regulations and lighting impulse (hereunder, IMP) withstand voltage test regulations. Then the effects of the scars shown during the construction process on electric accidents at the end part are analyzed.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.04a
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• pp.62-66
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• 2000

This study investigated the effects of certain specific wavelengths of lighting on the autonomic nervous system (ANS) using the heart rate variability (HRV) as an index. Six subjects with normal color vision participated n this study between 15:00 and 17:00 hr to neutralize any visual differences arising from circadian rhythm. The environmental conditions of the laboratory were maintained in complete darkness and the temperature was equilibrated at 24$\Box$ with a relative humidity of 60%. Subjects were only subjected to light stimulation when the pupil of dyes attained a minimum size of 2 mm by projecting illumination equalized with the same spectral radiance of 500-700 nm with 50-nm internal radiance. HRV was calculated from electrocardiogram (ECG) with systematic respiratory control at 0.35 Hz. The results suggest that illumination with certain wavelengths may induce ANS activation.

• The Research Journal of the Costume Culture
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• v.13 no.6 s.59
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• pp.946-959
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• 2005

The purpose of this study was to examine the Korean red carpet fashion of Daejong, Bluedragon, Korean Film Awards from 2002 to 2004, focusing on nominates of female movie stars and presidents. Leading colors were black and white but pale and vivid colors were also chosen. Dresses were made of satin, chiffon, lace and velvet mainly, and patterned fabrics made strong statements among them. Based on the long and slim silhouette, there were lots of details using beads, sequins and crystal stones for manipulating lighting effects. Fur shawls along with diamond jewelry were favorite items of many stars. They preferred dresses of international brands to that of domestic brands. Esthetic qualities of red carpet fashion were categorized as decorative gorgeousness, sophisticated elegance, glamourous sensuality, paradoxical presentation, pure innocence, and Korean refinement.

• Solar Energy
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• v.9 no.1
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• pp.36-42
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• 1989

Following the oil crisis in 1979, there have been surge of movements by the government in Korea to conserve petroleum-based energy in every sector of society. One of these movements was the application of passive solar technologies into the construction of school buildings. Various passive designs are developed paying special regard to architectural and climatic factors. This paper is related to the application of the passive solar technology to elementary school buildings. It is proposed to place the hallway on the south side of the building to improve the thermal performance as well as indoor lighting effects. The cases have been compared with those of the existing school buildings where substantial improvements are noted. Finally, standard drawings are prepared in detail to promote the application of this passive solar technology in practical school building.

• Journal of the Semiconductor & Display Technology
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• v.8 no.4
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• pp.25-29
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• 2009

In this study, a thin plate-type heat pipe, instead of a solid aluminium heat sink, is used to eliminate heat released from LED components for lighting. Effects of the heat pipe size and installation angle are studied both in numerically and experimentally. According to the results, temperature on LED chip, when a heat pipe is used, is $1.2^{\circ}C$ lower than using the conventional metal PCB. The overall temperature drop is $32^{\circ}C$ if the heat pipe is properly used. The highest cooling performance is obtained in the case when the angle of a heat pipe installation is $90^{\circ}$.

• Journal of the Korea Furniture Society
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• v.26 no.4
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• pp.334-345
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• 2015

The social design, which appeared at the end of the 19th century, is getting attention along with problems in modern society. The purpose of this paper is to analyze several cases of social furniture designs, and to present its necessity and future direction. It classifies the cases of furniture, lighting and design project regarding social design into three types. First is furniture design for social minority. Second is sustainable design, and third is social design that delivers social message. The expected effects of social design are cost-efficiency, sociality, and environment-friendliness. Also, social design requires certain direction which is first; the designer should recognize the minorities in the world. Second, the designer is obliged to accomplish social mission, and last, he or she should be aware that the design creates added values.

• Journal of the Korean housing association
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• v.15 no.5
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• pp.59-67
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• 2004

This study was intended to suggest the design guidelines of the space for the elderly with dementia. To achieve this, the behavioral characteristics of the elderly with dementia were grasped, and the design cases which were considered and reflected of the behavioral characteristics of the elderly with dementia were examined. Then, the effective space design guidelines which met the behavioral characteristcs of the elderly with dementia were suggested. The behaviors of the elderly with dementia were categorized into cognitive, emotional, and functional behavior. The positive influences of space design on dementia symptom were founded in the planned living environments, accessible and visible location of common space such as living room, soft and homelike interior finishes and lighting, and healing garden. Therefore, the space design for the elderly with dementia should be done on the basis of the dementia symptoms and healing effects.

• Proceedings of the KIPE Conference
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• 1998.07a
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• pp.466-469
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• 1998

The electronic fluorescent lamp ballast can promote the lighting efficiency up to 10-20% by driving high frequency with frequency transformation technique, and can completely eliminate the flickering phenomenon occurring from 60Hz frequency. The electronic ballast provides very high energy saving effects for it has high power fact than traditional ballast, and it is convenient to use. can extend the life of fluorescent lamp for it starts at once by driving with high frequency. However electronic ballast needs high price, and it can reduce the stability and reliability. This paper provides illumination systems which drive dozens of fluorescent lamps at the same time, to overcome these shortcomings of electronic ballast and utilize the advantage of electronic ballast.