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고열전도 콘크리트를 활용한 저온열원 융설시스템의 전열성능 실험연구
류성룡(Ryu, Seong-Ryong),박병용(Park, Beung-Yong),정창헌(Cheong, Chang-Heon) 한국건축친환경설비학회 2019 한국건축친환경설비학회 논문집 Vol.13 No.3
To develope concrete panels suitable for the snow melting system based on renewable energy or unused temperature difference energy, highly thermal conductive concrete panels using silica stones were made. Through the comparative small-scale experiment between the general concrete panel and the highly thermal conductive concrete panel using the low temperature heat source device simulating the unused temperature difference energy, we verified the possibility of the highly thermal conductive concrete panel to maximize efficiency of snow melting system using low temperature heat source.
홈오토메이션 기반의 실내환경 통합조절시스템에 관한 연구
류성룡(Ryu Seong-Ryong),신미수(Shin Mi-Su),이규남(Rhee Kyu-Nam),여명석(Yeo Myoung-Souk),김광우(Kim Kwang-Woo) 한국건축친환경설비학회 2008 한국건축친환경설비학회 논문집 Vol.2 No.2
In this study, we classified a home automation system into four categories according to its functions: indoor environment control system, security system, convenience system and information system. Also we conducted a questionnaire to find out the residents' preference for the classified system. The results show that residents have a preference for the indoor environment control system which has been excluded from the mainstream of the home automation system. For the effective control of indoor environment using a home automation system, each equipment of an indoor environment control system would rather be integrated than be operated independently. We framed the home automation system for the integrated control of the indoor environment. And, through the composition examples, we evaluated the applicability of the integrated control of the indoor environment based on the home automation system.
실물실험을 통한 다이나믹 유량밸런싱 적용 공동주택 세대의 에너지소비량 평가
류성룡(Seong-Ryong Ryu),정창헌(Chang-Heon Cheong),조현(Hyun Cho) 한국지열·수열에너지학회 2016 한국지열에너지학회논문집 Vol.12 No.4
Even though the control device of the heating system works well, insufficient water flow rates can degrade control performance and thermal comfort. The water flow rate should be adjusted appropriately to cope with the heating load of each zone. In order to solve these problems, a new balancing concept "dynamic balancing" was proposed where a balancing valve opening can be automatically modulated according to the heating condition of the room. This study analyzed the effects of dynamic balancing upon indoor thermal environment and energy consumption in a radiant floor heating system through field measurement. Under part-load conditions, the use of a dynamic balancing is a more effective method to reduce energy consumption and to prevent a cavitation. Dynamic balancing is able to help boost the temperature of a room in the start-up period.
류성룡(Ryu, Seong-Ryong),정창헌(Cheong, Chang-Heon) 한국건축친환경설비학회 2015 한국건축친환경설비학회 논문집 Vol.9 No.6
Carbon tax is very effective method for the reduction of greenhouse gas in building section. This study suggests the carbon tax system of building section in South Korea. Carbon tax can be classified as direct tax type and indirect tax type. The proposed carbon tax system respectively linked to secured property tax, property transfer tax and energy tax type. The carbon tax with direct tax type will make the building owner aware of the importance of building energy. Hence, the carbon tax will enhance the low-carbon structuralization of building sector. The profit gained from carbon tax in building sector must be redistributed to stakeholders in building section as incentives to secure the sustainability of the low-carbon structuralization.
류성룡(Ryu Seong-Ryong),정창헌(Cheong, Chang-Heon),서혜수(Suh, Hye-Soo) 한국건축친환경설비학회 2016 한국건축친환경설비학회 논문집 Vol.10 No.6
In Korea, there have been recently many studies to overcome weaknesses of exterior insulation in terms of workability and safety at high-rise building. And, the exterior insulation board in cast-in-place concrete form system was developed such as permanent insulation form system or integrated system for exterior insulation and wall. We utilized modified method for KS F 2762 to obtain test result for insulation bond strength in this study. Based on this method, we had measurements of bond strength for 12 cases and analyzed the result value of insulation bond strength test. In result, bond strength of EPS(expanded poly styrene, ‘B’ company) in E/F case is nearly 0.08 N/mm2(reference value of EOTA). Considering strong wind load by typhoon in Korea, it is necessary to use connection elements or to improve the bond strength of insulation by ribbed surface.
류성룡,백용현,박동석,Ryu, Seong-Ryong,Baek, Yong-Hyeon,Park, Dong-Suk 대한침구의학회 2006 대한침구의학회지 Vol.23 No.3
Objectives : To evaluate the analgesic effect of electroacupuncture on Choksamni (ST36) in the collagen-induced arthritis rats and investigate the role played by serotonergic receptor subtypes $(5-HT_{1A},\;5-HT_{1B},\;5-HT_4)$ in the antinociceptive effect of electroacupuncture in the thermal hyperalgesia test. Methods : Immunization of male Sprague-Dawley rats with bovine type II collagen emulsified in incomplete Freund's adjuvant, followed by booster injection 14 days later induced collagen-induced arthritis (CIA). The thermal hyperalgesia was evaluated weekly with tail flick latency (TFL). In the fourth week after first immunization. EA stimulation (2Hz, 0.07mA, 0.3ms) was delivered into Choksamni for 20 minutes. We measured the analgesic effect of EA with TFL afer intraperitoneal injection of normal saline, WAYl00635, SB216641 and GR125487. Results : TFLs were gradually decreased in CIA as time elapsed after the immunization of arthrogenic collagen and the maximum value was reached from third to fifth week. EA stimulation on ST36 inhibited chronic inflammatory pain induced by CIA. The analgesic effect of EA was inhibited by pretreatment of $5-HT_{1A}$. antagonist (WAYl00635), $5-HT_{1B}$ antagonist (SB216641) and $5-HT_4$ antagonist (GR125487). Conclusion : Electroacupuncture has the analgesic effect on chronic inflammatory pain and its mechanism was mediated by $5-HT_{1A}$, $5-HT_{1B}$ and $5-HT_4$.
퇴행성관절염(退行性關節炎) 한방치료(韓方治療)에 대(對)한 최근(最新) 연구(硏究) 동향(動向) - 임상연구(臨床硏究) 방법론(方法論)을 중심(中心)으로 -
서병관,류성룡,이송실,허정은,백용현,이재동,최도영,조윤제,김남재,박동석,Seo, Byung-kwan,Ryu, Seong-ryong,Lee, Song-shil,Huh, Jeong-eun,Baek, Yong-hyeon,Lee, Jae-dong,Choi, Do-young,Cho, Yoon-je,Kim, Nam-jae,Park, Dong-suk 대한침구의학회 2004 대한침구의학회지 Vol.21 No.3
Objective : The aim of this study was to review systemically clinical trials on the effectiveness and safety of herbal medicines in the treatment of osteoarthritis. Methods : Computerized literature searches were carried out on seven electronic databases, and hand-searching on some chinese medical journals in library of Kyung Hee Medical Center. Trial data were extracted in a standardized, predefined manner and assessed independently. Results : 1. Thirty reports of clinical trials and two reports of meta-analyses concerning herbal medicine were collected and reviewed. Among these reports three medical herbs were applied as topical medicine and others as internal medicine. 2. The western studies established NSAIDs or placebo as their control group. Five chinese reports established formulated herb pill(Ruanshnagshenjin pill) as their control group and Six did not establish a control group at all. 3. ACR was the most highly used diagnostic criteria in the western studies while the Chinese used their official criteria established by their government or the criteria of their text books. 4. 20 reports chose the Lequesne functional index, SHAQ, WOMAC OA index, AIMS, and their own unique scoring system as the criteria of analysing the effect. Others chose clinical symptoms, articular functions, and lab finding as their criteria. 5. 7 single herbs and 19 formulated herbs were studied. Among the formulated herbs, Achyranthes japonica was studied in 10 of the studies and Angelica gigantis Radix in 8, making them the most often studied herbs among the studies.