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      • KCI등재

        Comparison of Developmental Efficiency of Murine Somatic Cell Nuclear Transfer Protocol

        문정현,노상호,정미란 사단법인 한국동물생명공학회 2017 한국동물생명공학회지 Vol.32 No.3

        The Somatic cell nuclear transfer (SCNT) method can be applied to various fields such as species conservation, regenerative medicine, farming industries and drug production. However, the efficiency using SCNT is very low for many reasons. One of the troubles of SCNT is that it is highly dependent on the researcher’s competence. For that reason, four somatic cell nuclear injection methods were compared to evaluate the effect of hole-sealing process and existence of cytochalasin B (CB) on efficiency of murine SCNT protocol. As a results, the microinjection with the hole-sealing process, the oocyte plasma membrane is inhaled with injection pipette, in HCZB with CB was presented to be the most efficient for the reconstructed in SCNT process. In addition, we demonstrated that the oocytes manipulated in Hepes-CZB medium (HCZB) with CB does not affect the developmental rate and the morphology of the blastocyst during the pre-implantation stage. For this reason, we suggest the microinjection involving hole-sealing in HCZB with CB could improve SCNT process efficiency.

      • KCI등재

        창호 크기 변화 시 고정창 열관류율 변화에 관한 연구

        문정현 한국건축친환경설비학회 2019 한국건축친환경설비학회 논문집 Vol.13 No.1

        In this paper, U-value variations of a fixed window were analyzed qualitatively and quantitatively. The factors which influence the U-value variation of a window when the window size changes are the ratio of the frame U-value to the glass U-value and the ratio of the frame size to the window size. The ratio of the frame size to the window size increases when the window size increases and the frame width is fixed. In this study, when the window size varies and the frame width is fixed, the effect of the ratio of the frame U-value to the glass U-value on the U-value variations of the window were investigated. The calculation of window U-value consists of the u-value calculation for the glass and frame and that at glass edge. When the window size varies, the U-value variation for the glass and frame and that of the edge of glass should be investigated together. When the ratio of the frame U-value to the glass U-value is bigger than 1 and the window size decreases, the U-value for the glass and frame increases against that of the standard test window. The U-value for the edge of glass increases when the window size decreases from that of the standard test widow. Therefore, if the frame U-value is bigger than the glass U-value and the window size is smaller than the standard test case, the U-value difference of the glass and frame and that of the edge of the glass from that of the standard test window are piled up together.

      • KCI등재

        해수열펌프-해수온도차발전 복합플랜트의 P2H 섹터커플링 적용성 분석

        문정현,지호,이호생 한국동력기계공학회 2023 동력시스템공학회지 Vol.27 No.6

        In the Paris Climate Agreement, all member countries, regardless of developed or developing countries, agreed to implement mandatory greenhouse gas emissions reductions from 2020, and each country is increasing the share of renewable power generation to reduce greenhouse gas emissions. As the spread of renewable power generation increases, various problems such as system instability due to volatility and intermittency and curtailments of renewable power generation are occuring. So many studies are being conducted to overcome these problems by applying sector coupling technology. In this study, a SWHP (SeaWater Heat Pump) - OTEC (Ocean Thermal Energy Conversion) complex system was designed. when surplus power from renewable power generation was supplied to the complex system, the power and costs required for summer cooling and winter heating were compared with electric heat pump (EHP) cooling and heating. In addition, the power that can be supplied from OTEC using stored cold and hotwater as a heat source and heat sink was calculated during peak.

      • KCI등재후보

        장기 미매각 종전부동산의 매각과 활용 방안에 대한 연구

        문정현,임병준 사단법인 한국부동산산업학회 2023 부동산산업연구 Vol.6 No.2

        Some of the previous real estate generated due to the transfer of public institutes to provincial regions have not been sold yet, in spite of ongoing efforts to sell them since 2009. Based on such background, this study examined the restricting factors and means of dealing with previous real estate experiencing difficulties in sales. It was determined that controversy arising from the special benefits of easing the regulations on the use of the land can be coped with by reverting the increased portion of the asset values thereof to the local autonomous government based on the past incidents. In addition, the means of utilization of previous real estate for which the sales is restricted for qualitative reasons of the institutes can be sought by linking it with national policy projects and, since there existed such cases in the past, they were deduced as means that require review. Moreover, administration procedure of changing the plan for handling of such real estate mentioned the need for policy support through revision of relevant regulations such as new establishment of provision within the follow-up management methods, etc. 공공기관의 지방이전으로 발생한 종전부동산의 일부는 2009년부터 매각이 추진된 이후 현재 시점까지도 매각이 되지 않고 있다. 이러한 배경에서 본 연구는 매각에 어려움을 겪고 있는 종전 부동산의 제약 요인과 처리 방안을 살펴보았다. 토지 이용 규제는 과거 사례에 비추어 규제 완화에 따른 자산가치 상승분을 지자체에 환원하여 특혜시비에 대응할 수 있는 것으로 분석되었다. 또한 기관의 정성적 사유로 매각이 제한되는 종전부동산은 국정과제와 연계하여 활용 방안을 모색할 수 있고 과거 사례 또한 존재한 만큼 검토가 필요한 방안으로 도출되었다. 이와 더불어 처리계획을 변경하는 행정절차는 관련법규인 사후관리 방안 내 조문 신설 등 개정을 통한 정책적 지원의 필요성을 언급하였다.

      • KCI등재

        일제강점기 배경의 영화 소비구조 분석-‘모에’와 ‘나쁜 장소’를 중심으로-

        문정현 한양대학교 현대영화연구소 2018 현대영화연구 Vol.14 No.1

        The films dating back to the Japanese colonial period, which were unveiled since the mid-2010s, are an unprecedented cultural phenomenon. This study attempted to grasp the common feature inherent in a series of films by taking advantage of the database consumption theory that Hiroshi Azuma devised to analyze subculture. As a result, the process of accumulating Moe-elements in the database of subculture in Japan could be acquired in Korean movie contents as well. In addition, the aesthetic arguments of Sawaragi noi were complemented by the former in order to distinguish the structure in which each movie is appealed to the public. Consequently, the paper was able to analyze how Kyungsung as ‘bad place’ invoked organically with Moe-elements. The theoretical discourse of Hiroki Azuma and Sawaragi Noi had a role of analytical tool in this paper. The combination of the two theories served as a major criterion to explain the consumption structure as the setting for various films during the Japanese imperialism period. As a result the paper analyzes post-modern aspects of characters in modern culture and aims to reveal the implications of pseudo - realism in urban space. 2010년대 중반부터 동시다발적으로 개봉한 일제강점기 배경의 영화들은 전례 없는 문화현상으로서 주요한 연구대상이다. 본 연구는 아즈마 히로키가 서브컬처를 분석하기 위해 고안한 데이터베이스 소비이론을 차용해서 일련의 영화들에 내재된 공동분모를 파악하고자 시도했다. 그 결과 일본에서의 하위문화가 작동하는 유사한 방식으로 모에 요소들이 데이터베이스에 축적 및 재배열되는 과정을 국내 영화콘텐츠에서도 포착할 수 있었다. 또한 각 영화들이 대중들에게 소구되는 구조를 파악하기 위해서 사와라기 노이의 미학적 논증들을 전자에 보완했다. 그 결과 나쁜 장소로서 성립하는 역사 속 경성이 모에 요소들과 어떻게 유기적으로 결합하며 호출되는지 분석할 수 있었다. 근대기까지 작품의 배후로 커다란 이야기가 자리했다면 그 이후에는 캐릭터의 중요성이 증가하며 데이터베이스 소비구조가 새롭게 부상했다. 선형적 역사로부터 유리된 나쁜 장소의 지각은 이와 같이 커다란 이야기를 산출하는 문화형식의 반성적 성찰을 유도한다는 점에서 시사적이다. 이처럼 아즈마 히로키와 사와라기 노이가 전개한 담론은 본고의 문제제기를 위한 주요한 분석도구로 인용되었다. 그 결과 영화 속 등장하는 다양한 이미지의 유형을 데이터베이스에 집적되는 모에 요소들로, 도시공간의 지형학에 내재된 분열적 양상들을 상대항으로 정리할 수 있었다. 일제강점기가 다양한 영화 작품들의 배경으로 차용되는 소비구조를 밝히기 위해서 두 이론의 결합은 주요한 비평적 근거로 작용했다. 이와 같이 본 논문은 현대문화에서 성립하는 캐릭터의 포스트모던한 양상을 분석하는 동시에 도시공간의 의사 리얼리즘에 함의된 의미까지 밝히는 것을 목적으로 삼는다.

      • KCI등재

        폐경기 여성의 호르몬 대치요법이 안구건조증상에 미치는 영향: 전향적 연구보고

        문정현,정지웅,신경환,백혜정,Jung Hyun Moon,Jee Woong Jung,Kyung Hwan Shin,Hye Jung Paik 대한안과학회 2010 대한안과학회지 Vol.51 No.2

        Purpose: To evaluate the effects of conjugated hormone replacement therapy (HRT) on dry eye syndrome in postmenopausal women. Methods: Thirty-six healthy postmenopausal women (72 eyes) were included in this three- month prospective study. Schirmer test, tear film break-up time (BUT), fluorescein staining score and symptom score were performed on all patients at the time of enrollment, one month and three months after initiation of HRT. All patients received HRT consisting of conjugated estrogen and progesterone taken orally in a continuous combined regimen. Results: Symptom score significantly decreased from 2.10±0.79 before HRT to 1.32±0.84 after one month and to 0.88±0.67 after three months (p<0.001). In addition, tear film BUT measurements significantly increased from 6.04±2.54 seconds to 7.99±2.43 seconds after one month and to 8.93±2.20 after three months (p<0.001). The fluorescein staining score was 0.94±0.71 before HRT and decreased to 0.42±0.60 after one month and to 0.22±0.42 after three months (p<0.001). Conclusions: Hormone replacement therapy consisting of conjugated estrogen and progesterone significantly improved the symptoms and signs of dry eye syndrome in postmenopausal women. J Korean Ophthalmol Soc 2010;51(2):175-179

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