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정희규(Hee-Gyu Jeong),박준원(Jun-Won Park),이영재(Young-Jae Lee),송두삼(Doosam Song) 대한설비공학회 2012 설비공학 논문집 Vol.24 No.9
Recently, energy saving in building sector is of great important to meet national CO₂ reduction goals in Korea. In this sense, it is crucial to improve the energy performance for existing building. The energy efficiency investments, ESCO business, can be beneficial to expand the chance of energy retrofit for existing building. However, ESCO business hardly expand in Korea because it has many limitations in guarantee for energy saving. Also, it is more difficult to apply the energy retrofit measures in existing building than new building. Therefore, the retrofitting methods for existing small-and medium-sized buildings should be improved to initiate ESCO business and expand it in Korea. In this study, the energy retrofit methods for small sized office building were suggested and the case study for a small sized office building located in Suwon was accomplished.
기존 건물의 에너지 개수 사업 수행방안에 관한 연구 : 국내 ESCO 사업 현황 및 관련제도 분석
정희규(Hee-Gyu Jeong),박준원(Jun-Won Park),강기남(Ki-Nam Kang),송두삼(Doosam Song) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
Currently, building energy has received much attention and many policies for ESCO business to minimize building energy were suggested in Korea. ESCO business, or energy retrofit business for existing buildings, hardly expanded in Korea. In this study, the state of the art for ESCO business will be reviewed.
중소규모 기존 건물의 에너지 개수 방법에 관한 실증연구
정희규(Jeong Hee-Gyu),이영재(Lee Young-Jae),송두삼(Song Doosam) 한국태양에너지학회 2012 한국태양에너지학회 학술대회논문집 Vol.2012 No.3
In recent years, building energy has received much attention and there are many support system to reduce building energy consumption. In addition, It is clear that encouraging to energy efficiency investments can be benenficial to our society, because of the energy supply instability and higher energy price in Korea. Nevertheless, ESCO business, represent the existing building energy retrofit business, hardly has not expanded in Korea. besides, in the case of existing building, it is more difficult to achieve the energy retrofit measures than new building, due to the existing buildings have attributes such as a long life and a lt of energy factor, etc. Therefore, for activate ESCO business and expand ESCO business target to small-to-medium building, it is needed to optimization of retrofitting methods for existing small-to medium buildings in Korea. this research was to derive energy retrofit methods through the energy audit and analysis performed for a small -to-medium building located in Suwon, Korea.
송영우,정희규,한서연,팽경원,김명지,차재국,최윤정,정의원 대한치주과학회 2020 Journal of Periodontal & Implant Science Vol.50 No.4
Purpose: This study was conducted to assess the efficacy of prophylactic gingival grafting in the mandibular anterior labial area for preventing orthodontically induced gingival recession. Methods: Eight mongrel dogs received gingival graft surgery at the first (I1) and third (I3) mandibular incisors on both sides based on the following group allocation: AT group (autogenous connective tissue graft on I1), AT-control group (contralateral side in the AT group), CM group (xenogeneic cross-linked collagen matrix graft on I3) and CM-control group (contralateral side in the CM group). At 4 weeks after surgery, 6 incisors were splinted and proclined for 4 weeks, followed by 16 weeks of retention. At 24 weeks after surgery, casts were made and compared with those made before surgery, and radiographic and histomorphometric analyses were performed. Results: Despite the proclination of the incisal tip (by approximately 3 mm), labial gingival recession did not occur. The labial gingiva was thicker in the AT group (1.85±0.50 mm vs. 1.76±0.45 mm, P>0.05) and CM group (1.90±0.33 mm vs. 1.79±0.20 mm, P>0.05) than in their respective control groups. Conclusions: The level of the labial gingival margin did not change following labial proclination of incisors in dogs. Both the AT and CM groups showed enhanced gingival thickness.