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권오훈 ( Oh Hoon Kwon ),윤희관 ( Huy Kwan Yun ),한성국 ( Seong Kuk Han ),안대현 ( Dae Hyun Ahn ),심명진 ( Myeong Jin Shim ),조성운 ( Sung Woon Cho ),박종순 ( Jong Soon Park ),김재용 ( Jae Yong Kim ) 한국공업화학회 2010 공업화학 Vol.21 No.5
기존 단열재의 주된 기능은 단지 열전달을 차단하는 기능과 건물로부터 열손실을 줄여주는 기능만을 수행했다. 반면, 축열재는 특정온도 범위 내에서 열에너지를 저장 또는 방출함으로써 건물에너지 사용량을 절감할 수 있다. 축열 건자재는 실내 공기온도 변화주기를 효과적으로 조절하여 일정하게 온도를 유지시킬 수 있다. 결과적으로 냉난방시스템기능을 효율적으로 향상시킬 수 있다. 본 연구는 건축자재로 많이 이용되고 있는 석고보드에 상변화잠열물질을 축열재로 첨가하여 그 물성과 열환경 특성을 파악하였다. 또한 축열 건자재를 활용할 때 발생가능한 문제점을 확인하였다. 마지막으로 TVOC와 HCHO 함량 분석으로부터 오염물질의 배출가능성을 조사하여 축열 건자재의 환경 친화도를 검토하였다. The main function of conventional insulation materials is only to block the heat transfer and reduce heat loss from the building. On the other hand, thermal storage materials can work as an energy saver by absorbing or emitting heat within a specific temperature range. Thermal storage materials for building can maintain a constant temperature by effectively regulating the cycle of indoor temperature. As a result, we can enhance the performance of a cooling and heating system efficiently. In this study, phase change materials (PCMs) were added as thermal storage materials into gypsum boards which are extensively used for building material and we found out the thermal environmental characteristics. In addition, we checked out some problems when applying the thermal storage materials to buildings. Finally, This study set out to examine the degree of environmental-friendly characteristics of thermal storage building materials by analyzing the amount of TVOC and HCHO contents with the possibility of pollutants emission.
권오훈(Kwon, Oh-hoon) 한국선교신학회 2010 선교신학 Vol.23 No.-
The term, ‘missional church,’ is a common term among missiologists. John Wesley’s (1703-1791) missionary career (10/21/1735- 02/01/ 1738) is considerably well known. ‘Missionary Wesley’ indicates Wesley as a missionary to America. Wesley was indeed missional before and during his missionary service, but it was after his missionary career when his missional abilities shined. Thus, the author suggests using a brand-new term ‘missional Wesley.’ The focus of this article is stated in the title: From Missionary Wesley to Missional Wesley. This study explores three significant missiological implications of Wesley’s life and ministry: Wesley’s dilemma, Wesley’s assurance, and Wesley’s renewal movement. The seemingly failed mission of Wesley to America was partially due to conflict between sending agency (the Anglican Society for the Propagation of the Gospel) and missionary (John Wesley). The author coins a new term, ‘Wesley’s dilemma,’ for this common conflict in Christian mission. This article discusses the centripetal mission and centrifugal mission, offering suggestions and recommendations regarding ‘Wesley’s Dilemma.’ What Wesley experienced at Aldersgate on May 24th in 1738 was an assurance. Wesley centered to the right object of his faith, Jesus Christ. To be concrete, it was not just the commonly used term, ‘Wesley's conversion,’ but Wesley’s conversion to Christ. Wesley’s assurance was a stepping stone for becoming missional Wesley. From then on, Wesley’s life and ministry was focused on church renewal. Inventing and reinventing small groups was where Wesley’s genius shone. Small groups (societies, classes, bands) were places for discipline and fellowship in Wesley’s renewal movement. It was a system of discipline-in-community and fellowship-in-community. John R. W. Stott’s definition of koinonia, ‘sharing-in, sharing-out, and sharing-with’ was realized in small groups. The itineracy of the ‘lay’ leader was crucial for this success. The author concludes this article by quoting and paraphrasing Stephen B. Bevans and Roger P. Schroeder: “If to be church is to be in mission, to be in mission is to be responsive to the demands of the gospel in particular contexts, to be continually ‘reinventing’ itself as it struggles with and approaches new situations, new peoples, new cultures and new questions.” Missional Wesley was indeed a champion of contextualization and reinvention of structure.
권오훈(Oh-Hoon Kwon),강인창(In-chang Kang),민동선(Dong-Sun Min),임희범(He-Beom Im),박용욱(Yong-Wook Park) 한국전자통신학회 2021 한국전자통신학회 논문지 Vol.16 No.4
본 논문에서 식물 생산성 향상을 위해 온, 습도뿐만 아니라 조도까지 제어 가능한 스마트팜 동작 특성을 연구하였다. 연구된 스마트팜에서는 각 센서로부터 입력 값을 받아 제어부인 아두이노를 거쳐 제어부들이 동작할 수 있게 설계하였다. 그뿐만 아니라 스마트팜의 편리성을 극대화하기 위해서 블루투스 통신 모듈을 이용하여 모바일 폰에서도 제어가 가능할 수 있게 앱을 설계하였다. 연구를 통해 스마트팜의 자동화 기능이 식물이 자라기에 적합한 환경을 만들 수 있음을 확인할 수 있었다. In this paper, we studied properties of smart farms that can automatically control not only the temperature and humidity but also the illumination to improve plant productivity. The smart farm was designed to allow the controllers to operate through Arduino by receiving input values from each sensor. In addition, to maximize the convenience of smart farm, the Bluetooth communication module is used to control the smart phone. The study confirmed that the automation function of smart farms can create an environment suitable for plants to grow.
편두통의 침 치료에 대한 임상 연구 동향 분석 - 2012년도 이후 Pubmed 검색 중심으로
최기훈,김은지,권오훈,김광휘,김태연,이태걸,Choi, Ki-hoon,Kim, Eun-ji,Kwon, Oh-hoon,Kim, Kwang-hwi,Kim, Tae-yeon,Lee, Tae-geol 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.2
Objective: To compare recent domestic and overseas research trends about acupuncture therapies on migraines. Method: Case reports and randomized controlled trials were searched via Pubmed. Searches were limited to publications between 2012 and 2017. Results: Four case reports and twelve randomized controlled trials were searched from Pubmed. Research showed that acupuncture therapies are more significantly effective than other therapies, such as sham acupunctures and Western medicines. Conclusion: There has been more active overseas research about acupuncture therapies on migraine compared to domestic studies. To examine the efficacy and suitability of acupuncture therapies on Koreans with migraines, domestic studies and research should be conducted more actively.