• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.19 no.6
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• pp.1-8
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• 2005

The quantity of light available for a space can be translated in term of the amount of energy savings through a process of a building energy simulation. To get significant energy savings in general illumination, the electric lighting system must be incorporated with a daylight - activated dimmer control. A prototype configuration of an once interior has been established and the integration between the building envelope and lighting and HVAC systems is evaluated based on computer modeling of a lighting control facility. First of all, an energy-efficient luminaire system is designed and the lighting analysis program, Lumen-Micro 2000 predicts the optimal layout of a conventional fluorescent lighting future to meet the designed lighting level and calculates unit power density, which translates the demanded met of electric lighting energy. A dimming control system integrated with the contribution of daylighting has been applied to the operating of the artificial lighting. Annual cooling load due to lighting and the projecting saving amount of cooling load due to daylighting under overcast diffuse sky m evaluated by computer software ENER-Win. In brief, the results from building energy simulation with measured daylight illumination levels and the performance of lighting control system indicate that daylighting can save over 70 percent of the required energy for general illumination in the perimeter zones through the year A 25[%] of electric energy for cooling and almost all off heating energy may be saved by dimming and turning off the luminaires in the perimeter zones.

• 어항어장
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• s.50
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• pp.53-60
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• 2000

• Nuclear industry
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• no.1_2 s.11
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• pp.42-43
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• 1983

• Water for future
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• v.24 no.4
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• pp.22-24
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• 1991

• Journal of the Korean Applied Science and Technology
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• v.34 no.4
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• pp.1104-1111
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• 2017

In this study, the authors aimed to give careful consideration to the circulation of bioenergy (Qi) by using cardiorespiratory massage technique. Finding enlightenment in harmony with nature thousands of years ago, our ancestors created Qi using natural breathing and tried to achieve good health and long life by controling the up and down movement. Experiencing the importance of the abdomen during the hungry times, also, grandmothers cured diseases by rubbing the abdomen, which is the ocean of life with their soft, soothing touch of hand. Naval breathing therapy was formed, based on natural breathing, emotional recognition of grandmothers' soft, soothing touch, and the Theory of Unified Reason and Energy that is the key of Oriental medicine. Natural breathing and Yakson massage are kinds of naturopathy to change body and mind, cure diseases naturally, and maintain the improvement in physical functions by taking care of the abdomen through the creation of Qi and the up and down movement and keeping dynamic balance between the natural world and the inside and outside of human body. It is anticipated that this study could contribute to the practical spread for an active application of naval breathing therapy and be broadly used in scientific clinical researches.

• Product Safety
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• s.248
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• pp.46-49
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• 2014

자연, 사람, 공간의 균형 잡힌 조화. 자연의 건강함과 혜택을 슬기롭게 이용하고 자연에 상처를 주지 않는 지혜로운 생활공간은 건강하고 행복한 삶의 바탕이 된다. LG하우시스는 '자연을 닮은, 사람을 담은 행복한 생활공간을 만듭니다'라는 비전 아래 1947년 이래로 건강하고, 아름다운 최고의 생활공간을 제공하기 위해 노력해왔다. LG하우시스는 자연을 거스르지 않는 친환경 소재, 에너지 효율을 극대화하는 최적의 기술 솔루션과 제품으로 고객 만족을 추구하여 신뢰받는 기업으로 자리매김하고 있다.

• Journal of the Korean Society of Safety
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• v.22 no.5
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• pp.77-83
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• 2007

This study is conducted on spontaneous ignition temperature and activation energy of Hydroxypropyl Methyl Cellulose(HMC) powder. HMC is a kind of cellulose derivative and used as additives for building material, surface coating, printing ink, adhesives, cosmetics and medical supplies. So this material has been widely used as important additive in the chemical industry fields and a mount of production has increased year by year. Therefore, it is very important to find out the thermal ignition characteristics of its danger and the critical ignition temperature. This study was performed by the Spontaneous Ignition Tester(SIT) and so on. Based on the data of the SIT-II, the critical ignition point of HMC is about $186^{\circ}C$ which is slightly lower than normal cellulose.

• Journal of the Korean Solar Energy Society
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• v.27 no.4
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• pp.129-136
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• 2007

자연광의 이용은 큰 어려움 없이 지속 가능한 에너지 기술을 구현할 수 있는 방안으로 고려되고 있다. 여러 개의 작은 반사경을 적용한 태양 추적식 자연채광 시스템은 비교적 단순한 메카니즘을 적용하여 그 성능과 효용성의 극대화를 꾀할 수 있으며, 또한 그 제작, 설치 작동 그리고 활용성에서 상당한 이점이 있다. 본 연구에서는 작은 mini-dish형 반사경(직경<30cm 이하)을 이용한 화이버 광학 집광기의 설계, 제작 및 작동 특성에 대하여 소개하고, 아울러 광추적 프로그램인 Photopia를 이용하여 그 성능에 대한 시뮬레이션을 수행하였다. 주요 구성 요소에서의 광추적에 의한 시뮬레이션 결과치는 실제 시스템의 설계 및 성능 예측에 중요한 기술적 데이터를 제공하며, 특히 실측이 곤란한 측정 면에서의 빛의 경로 해석에 유용하게 적용될 수 있다.

• The Magazine for Energy Service Companies
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• s.58
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• pp.46-47
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• 2009

• Korea Petroleum Association Journal
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• no.9 s.187
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• pp.56-57
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• 1996