흉터복원술과 자동 미세침(Auto Microneedle Therapy System, AMTS)을 이용한 여드름 흉터의 치험례

허정은,윤정민,신상호,Heo, Jeong-Eun,Yun, Jeong-Min,Shin, Sang-Ho 대한한방안이비인후피부과학회 2013 한방안이비인후피부과학회지 Vol.26 No.4

Objective : Acne is very common disease, it can leave permanent scars. However, there are few reports about it in oriental medicine academia. This study performed to evaluate the effect of reconstruction of skin scars and auto microneedle therapy system on acne scars. Methods : Six patients were treated by using reconstruction of skin scars and auto microneedle therapy system. We compared the degree of treatment of acne scars on pre and post case photos and Qualitative Global Acne Scarring Grading System(QGASC). Satisfaction degree were asked from the patients. Results & Conclusion : After comparing case photos and QGASC, observing patients satisfaction, it can be considered that reconstruction of skin scars and auto microneedle therapy system to be valid acne scars treatment.

Electron-beam Evaporation의 증착 방법에 따른 MgO Layer의 표면 특성에 관한 연구

허정은,이돈규,조성용,이해준,이호준,박정후,Heo, Jeong-Eun,Lee, Don-Kyu,Cho, Sung-Yong,Lee, Hae-June,Lee, Ho-Jun,Park, Chung-Hoo 한국전기전자재료학회 2008 전기전자재료학회논문지 Vol.21 No.5

A MgO layer is used as electrode protective film in the alternating current plasma display panel (AC PDP). The properties of MgO layer are thought to be one of the most important factors that affects the panel reliability through the firing voltage variation. In this study, we investigated the relations between the surface characteristics and e-beam evaporation process parameters such as deposition rate, temperature of substrate and distance between the MgO pellet and substrate. To produce the MgO layer of (200) crystal orientation, we suggest the high temperature of the substrate, the long distance between the pellet and substrate and the high deposition rate.

TCD를 이용한 정상군과 중풍원인질환군의 혈류측정에 관한 비교연구

허정은,권정남,신원탁,김종득,이상희,손연희,김영균,Heo, Jeong-Eun,Kwon, Jung-Nam,Shin, Won-Tak,Kim, Jong-Deuk,Lee, Sang-Hee,Son, Yeoun-Hui,Kim, Young-Kyun 대한한방내과학회 2007 大韓韓方內科學會誌 Vol.28 No.2

Objectives : The purpose of this study was to evaluate the blood flow using doppler ultrasound of the MCA, ACA, PCA, BA, ICA in the patients with risk factor for stroke. Methods : 110 patients with risk factor for stroke were selected who had hypertension, diabetes mellitus, hyperlipidemia, or heart disease, as well as 89 healthy adults who did not have any symptoms of those diseases. To evaluate the blood flow, the Vs and Vm of the MCA, ACA, PCA, BA, and ICA in the two groups were measured. Result : In normal healthy adults, subjects showed a decrease in the Vs and Vm: with advancing in age, there was a significant difference in the Vs of MCA, PCA, BA, and ICA. There was a significant difference in the Vm of MCA, PCA, BA, and ICA. In normal healthy adults, females showed high velocities in all examined vessels. There was a significant difference in the Vs of BA. There was a significant difference in the Vm of BA, and ICA. There was a decrease in the Vs, and Vm of all examined vessels of patients with risk factors for stroke in comparison with normal healthy adults. There was no significant difference in the Vs. There was a significant difference in the Vm of MCA, ACA, and PCA. Results were the same between patients aged under 50 and total patients in the Vs and Vm of examined vessels. There were differences between patients aged over 50 and total patients in the Vs of MCA, PCA, BA and for patients aged over 50; patients with risk factor for stroke who had hypertension, diabetes mellitus, hyperlipidemia, or heat disease has higher Vs than healthy adults. Conclusions : There was a significant difference in the blood flow velocity between patients with risk factors for stroke and healthy adults. However, this result was different from results of comparison of TCD findings between patients and healthy individuals by age. Therefore, more detailed studies about aged patients are needed.

TCD를 이용한 고혈압환자군과 정상혈압군의 뇌혈류측정에 관한 비교연구

허정은,김영균,권정남,김경민,김봉현,김민규,김재규,박선미,Heo, Jeong-Eun,Kim, Young-Kyun,Kwon, Jung-Nam,Kim, Kyoung-Min,Kim, Bong-Hyun,Kim, Min-Kyu,Kim, Jae-Kyu,Park, Sun-Mi 대한한방내과학회 2008 大韓韓方內科學會誌 Vol.29 No.4

Objectives : The purpose of this study was to compare cerebral biood flow between hypertensives and normotensives using transcranial doppler ultrasonography (TCD). Methods : I investigated cerebral blood flow of 72 hypertensives and 127 normotensives. To evaluate the cerebral blood flow, I measured the systolic peak velocity(Vs) and mean How velocity (Vm) of the middle cerebral artery(MCA), anterior cerebral artery(ACA), posterior cerebral artery(PCA), basilar artery(BA), and internal carotid artery(ICA) in the two groups using TCD. Result : 1. There was a decrease in the Vs and Vm of all examined vessels of hypertensives in comparison with normotensives. There was a significant difference in the Vs of ACA and Vm of ACA, PCA, ICA. 2. In males, there was a decrease in the Vs of ACA, PCA, ICA and Vm of MCA, ACA, PCA, ICA of hypertensives in comparison with normotensives. However, there was no significant difference in the Vs or Vm of all examined vessels. 3. In females, there was a decrease in the Vs and Vm of all examined vessels of hypertensives in comparison with normotensives. There was a significant difference in the Vs of MCA, ACA and BA and Vm of ACA, PCA and BA. 4. In 30-49 year-olds, there was a decrease in the Vs and Vm of all examined vessels of hypertensives in comparison with normotensives. There was a significant difference in the Vs of ACA and Vm of ACA. 5. In 50-69 year-olds, there was a decrease in the Vs of ACA, PCA, BA, ICA and Vm of all examined vessels of hypertensives in comparison with normotensives. However, there was no significant difference in the Vs or Vm of all examined vessels. 6. In 70-89 vests old. there was a decrease in the Vs. Vm of PCA, BA, ICA of hypertensives in comparison with normotensives. But, there was no significant difference in the Vs, Vm of all examined vessels. Conclusions : There was a significant difference in the cerebral blood now velocity between hypertensives and normotcnsives. These results suggest that blood pressure has influence on cerebral blood flow.

제 10차 장기 송변전 설비계획 기반 확률론적 계통해석을 통한 지역간 융통조류 분석

허정은(Jeongeun Heo),이재형(Jaehyeong Lee),오승찬(Seungchan Oh),최진산(Jinsan Choi),이철휴(Chulhyu Lee) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.10-2

재난안전관리 과학기술 네트워크

허정은(Jungeun Heo),양창훈(Chang Hoon Yang) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.11

최근 국가적 재난사고의 발생으로 인해 재난안전문제의 근원적 해결을 위한 과학기술의 활용과 역할에 대한 연구 관심이 증대되고 있다. 이에 재난 유형이나 재난안전 관리 단계별로 국민의 안전기본권 확보, 효과적 대응을 위한 기술개발 분야 발굴, 관련 R&D 투자의 효율적 방향 모색 등의 필요성도 크게 대두되고 있다. 본 연구에서는 네트워크 분석을 기반으로 과학기술을 통해 우선적으로 해결이 필요한 재난 유형 및 재난안전 관리 단계는 무엇인지 그리고 재난안전문제 해결을 위해서는 어떤 기술개발이 필요한지를 분석하였다. 전문가 수요조사에 대한 네트워크 분석 결과, 사회재난인 화재와 자연재난인 지진에 대한 우리 사회의 불안감이 가장 큰 것으로 나타났으며, 대부분의 재난 유형에 공통적으로 요구되거나 재난 상황에 따라 응용 가능성이 높은 기술개발 분야는 인공지능과 빅데이터 분석인 것으로 조사되었다. 본 연구는 재난안전과 기술 분야 간 연결망 구조를 구축한 후 그 연계 속성이 갖는 구조적 특성을 탐색하고, 나아가 재난안전 과학기술의 역할 강화를 위한 함의를 제시하였다. Recently, due to the rising incidence of disasters in the nation, there has been a growing interest in the relevance and role of science and technology in solving disaster and safety related issues. In addition, the necessities of securing the human rights of all citizens in disaster risk reduction, identifying fields of technology development for effective disaster response, and improving the efficiency of R&D investment for disaster and safety are becoming more important as the different types of disasters and stages of disaster and safety management process have been considered. In this study, we analyzed bipartite or two-mode networks constructed from an expert survey dataset of technology development for disaster and safety management. The results reveal that earthquake and fire are the two disasters affecting an individual and society at large and demonstrate that AI and big data analytics are effective supports in managing disaster and safety. We believe that such a network analytic approach can be used to explore some important implications exist for the national science and technology effort and successful disaster and safety management practices in Korea.

학생부종합전형에 따른 고교 교육의 변화 분석

허정은(Jung-Eun HEO),원효헌(Hyo-Heon WON) 한국수산해양교육학회 2015 水産海洋敎育硏究 Vol.27 No.3

The purpose of this study was to analyze the perception of a high school teacher on Admission Officer System. The subjects were limited to 324 high school teachers of Busan, Ulsan, and Gyeongsangnam-do regions. The major research question for the study was how are the perceptions of high school teachers about the Admission Officer System. The main results were as follows: first, high school teachers showed high understanding of the admissions overall. Second, high school teachers with counseling experience about applying to colleges considered the score of the College Scholastic Ability Test less important. Third, high school teachers have recognized that there is a distance between high school education activities and the Admission Officer System. Eliciting sympathy from the high school teachers for the Admission Officer System is a very important task. Negative perceptions of high school teachers on the Admission Officer System is still remained. The cooperation between leading universities and high schools would help the Admission Officer System work with its original purpose or goal.

Nature, Science, Cell誌에 게재된 한국인 과학자의 논문현황 분석

허정은(Heo Jung-Eun),김해도(Kim Hae Do),최태진(Choi Tae Jin),김성백(Kim Seong-Back),조영돈(Cho Young-Don),김인호(Kim In-Ho) 한국기술혁신학회 2006 기술혁신학회지 Vol.9 No.3

그동안 우리나라는 지속적으로 R&D투자를 확대하는 등 과학기술 혁신역량을 강화하기 위해 부단히 노력해 왔다. 이러한 결과로 우리나라의 연구개발능력이 크게 신장되었으며, 과학기술지표 측면에서의 수준도 크게 향상된 것으로 나타났다. 또한, 세계 정상급 과학저널로 인정받고 있는 Nature誌, Science誌, Cell誌(이하, ‘NSC’)에 우리나라 과학자들이 논문을 게재한 실적 또한 괄목할만하게 증가 하였다. 본 연구는 NSC誌에 논문을 게재한 한국인 과학자의 현황을 분석하여 우리나라의 연구역량을 진단하고 연구의 질적 수준 제고를 위한 정책적 시사점을 도출하였다. 특히, 국가연구개발사업 중에서 어떠한 연구개발 프로그램이 NSC 논문을 증가시킨 요인으로 작용하였는지를 구체적 사례를 통해서 분석함으로써 향후 국가연구개발 프로그램의 전략적 추진방안을 모색하였다. With the rapid shift to a knowledge-based economy, science and technology (S&T) is considered as the principle drivers in a nation's competitiveness. All countries are focused on upgrading the level of their S&T of nations and strengthening their national competitiveness. With these factors in mind, Korea has increased its support of national research and development (R&D). As a result of this added support, Korea S&T has made great strides. This improvement can be seen in the drastic increase in the number of Korean researchers who have been published in Nature, Science and Cell (NSC) , three top journals in the fields of S&T. This study is a quantitative analysis on the NSC publications of Korean researchers. The purpose of this study is to derive research policy suggestions to improve Korea's national competitiveness in S&T.

토마토 과실의 호흡 및 에틸렌 생성에 대한 1-Methylcyclopropene의 진공 침투 처리 효과

허정은(Jeong-Eun Heo),최성진(Seong-Jin Choi) 한국원예학회 2006 원예과학기술지 Vol.24 No.4

A standard method to treat fruits with 1-methylcyclopropene (1-MCP) is to close the fruits for a relatively long time with the 1-MCP gas at the atmospheric pressure so that the gas diffuses into the fruits. In this study, 1-MCP gas was vacuum-infiltrated into the tomato fruits within a short time and the treatment efficiency was evaluated by measuring the changes of respiration and ethylene production rates. By the forced infiltration of 1-MCP, respiration rate was reduced proportional to the treated 1-MCP concentrations and inversely proportional to the applied vacuum pressures. But the 1-MCP treatment increased ethylene production, especially under the vacuum pressure of 60 mbar. At 120 mbar vacuum pressure the 1-MCP was efficiently infiltrated into the fruits. However an increase in concentration of 1-MCP was required to acquire the same level of effect as standard treatment method, presumably because of the increased ethylene production.

도시 중심상업지역의 건축물 용도별 화재피해특성 기반의 화재위험도 평가에 관한 연구

허정은(Heo Jeong-Eun),전규엽(Jeon Gyu-Yeob),홍원화(Hong Won-Hwa) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.3

Currently, the population of the city in Korea is overpopulated resulting from urbanization. The population of the Seoul and metropolitan area which have economic, service and cultural facilities is more than 40% of Korean population. The more number of population are increased, the more risk of fire incidence and fire damage are increased. According to the building types in using, the features of the damages, casualty and loss of property, caused by fire are different. We gathered and studied data regarding fire incidents in commercial areas because different buildings are located there. Based from these data, we classified the degree of damages according to the purpose of the building. Therefore, this study is conducted to reduce fire damages by anticipating such incident and to be prepared for unforeseen situations.