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패널분석을 이용한 공적개발원조와 도시화가 개발도상국의 경제성장에 미치는 영향에 관한 연구
지혜란(Ji, Hye-Ran),우명제(Woo, Myung-Je),강명구(Kang, Myoung-Gu) 대한국토·도시계획학회 2014 國土計劃 Vol.49 No.4
In spite of the assistance of developed countries to developing countries for more than 70years after World War Ⅱ, only a few countries, including South Korea, escaped from poverty. Since developing countries have higher growth potential, ODA`s aids for these countries are expected to continue to grow. Therefore, in this study, the impact of ODA aids and urbanization of developing countries on economic growth is empirically analyzed with 73 countries between 1996-2012. In addition, developing countries are classified and analyzed based on the stage of development taking into account the major elements of development and income level. The results show that urbanization has the most positive impact on economic growth, followed by the ODA aids for social infrastructure, economic infrastructure, and multi-part. The effects on economic growth vary based on the stage of development. In particular, the aids for social infrastructure and multi-part appear to be more effective on economic growth in those countries with a lower level of development, while urbanization, physical capital, human capital are more effective to those with a higher level of development.
백지혜(Ji-Hye Baek),손혜진(Hye-Jin Son),이효은(Hyo-Eun Lee),정성택(Sung-Taek Jung),오용철(Young-Chul Oh),최진구(Jin-Gu Choi) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.2D
홈 네트워크의 산업이 급속도로 성장하고 있지만, 홈 네트워크를 구성하고 있는 가정용 기기들이 다양한 서로 다른 통신 방식과 네트워크, 적용분야 등으로 홈 네트워크 서비스를 제공하는데 문제시 되고 있다. 새로운 네트워크 기술과 홈 네트워크 서비스가 등장을 하더라도 일관된 홈 네트워크 서비스의 제공과 수용을 할 수 있도록 위해서는 홈 네트워크를 구성하고 있는 기술의 표준화가 필요하다. OSGi는 게이트웨이상의 서로 다른 기술 또는 타사의 서비스 간에도 통신이 가능하게 하는 표준 기술을 제공하고 있다. 본 논문에서는 OSGi가 탑재한 홈 게이트웨이에서의 홈 네트워크 서비스의 요구사항들을 살펴보고, PLC통신 기반에 가정용 제어 기기들과 OSGi의 프레임워크가 탑재한 홈 게이트웨이와의 네트워크를 구현하고, 음성인식과 PDA로 홈 기기들을 제어하는 서비스 제공을 위한 설계와 구현을 하였다.
Bis-GMA 유도체로부터 제조된 고분자 코팅에 의한 리튬이차전지용 폴리에틸렌 격리막의 고온 안전성 향상
임현구(Hyun Gu Im),홍지혜(Ji Hye Hong),김창근(Chang Keun Kim) 한국고분자학회 2010 폴리머 Vol.34 No.6
리튬이온 이차전지에는 폴리에틸렌 격리막이 주로 시용되어 오고 있다. 전지의 고온 안정성 확보를 위해서는 폴리에틸렌 격리막보다 높은 멜트다운(melt down) 온도를 갖는 격리막이 요구된다. 이를 위해 폴리에틸렌 격리막을 단량체인 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (bis-GMA) 혹은 이의 유도체들로 코팅하고 이를 라디칼 중합반응시켰다. 점도가 높은 bis-GMA를 사용한 경우에는 라디칼 중합반응이 진행되지 않은 반면 점도기 낮은 bis-GMA 유도체를 시용한 경우에는 라디칼 중합반응이 진행되었다. 적절한 함량의 bis-GMA 유도체를 포함한 반응액으로 격리막을 코팅하고 이를 종합반응시켜 격려막을 제조한 젤과 격리막의 통기도 감소없이 벨트다운 온도를 160 ℃까지 향상시킬 수 있었다. Microprous polyethylene (PE) membranes are widely used as lithium-ion battery separators. A separator having higher meltdown temperature than PE separator is still required for useful safety feature at a high temperature. To enhance meltdown temperature of PE separator. it was coated with polymers synthesized from bis-GMA derivatives by radical polymerization. Polymer was not formed when bis-GMA monomer having a high viscosity was used. while polymers were formed when bis-GMA derivatives having a low viscosity were used. When the separator was coaled with polymer synthesized from reaction mixture containing proper amount of bis-GMA derivative. its meltdown temperature were increased up to 160 ℃ without reduction in the air permeability.
최영현(Young Hyun Choi),나백주(Baeg Ju Na),이진용(Jin Yong Lee),황지혜(Ji Hye Hwang),임남구(Nam Gu Lim),이성기(Seong Ki Lee) 한국농촌의학 지역보건학회 2013 농촌의학·지역보건 Vol.38 No.1
Objectives: Pregnant women in rural areas do not have access to sufficient obstetric services in their own communities due to the shortage of obstetricians. Therefore, most of these women must seek obstetrician outside of their communities. The purpose of this study was to investigate the relationship between obstetric complications and accessibility to local obstetric care in Korea. Methods: This study was an ecological study in which the unit of analysis was an administrative district. Using Korea National Health Insurance Corporation data, the total number of deliveries and the delivery proportion within and outside of the community from 2001 to 2008 were calculated for 232 administrative districts nationwide. Three outflow levels were categorized based on each district’s out-of-community delivery proportion: high outflow (upper one third), moderate outflow (middle one third), and low outflow (lower one third). In addition, three obstetric complication rates (the rate of complications following abortion, ectopic and molar pregnancy, the abortion rate, and the eclampsia rate) were calculated for the 232 districts. One-way ANOVA and multivariate linear regression were used to evaluate obstetric complications among the three outflow levels. Results: The high outflow districts had higher rates of eclampsia and complications following abortion, ectopic, and molar pregnancy compared to the other districts (ANOVA, p<0.05). However, there was no significant difference in the abortion rate among the three groups. Multiple linear regression analysis showed that high outflow districts were statistically significant in the rate of complications following abortion, ectopic and molar pregnancy and eclampsia rate after adjusting for local tax per capita (p<0.01). Conclusion: These results indicate that poor access to local obstetric care correlate with poor obstetric outcomes (delayed or excessive bleeding, embolism, genital tract or pelvic infection, shock or other complications following abortion and ectopic or molar pregnancy, or eclampsia).
이경희 ( Kyeong Hee Lee ),김소라 ( So Ra Kim ),구지혜 ( Ji Hye Gu ),김찬주 ( Chan Ju Kim ),최다혜 ( Da Hye Choi ) 한국치위생학회 2015 한국치위생학회지 Vol.15 No.4
Objectives: The purpose of the study is to investigate the relationship between dental fear and subjective oral health-related quality of life. Methods: A self-reported questionnaire was filled out by 320 subjects in Seoul and Gyeonggido from June to August, 2014 after permission from Institutional Review Board (IRB). Except incomplete 9 copies, 311 data were analyzed using SPSS WIN 19.0 program. The questionnaire consisted of five questions of the general characteristics of the subjects, twelve questions of oral health related quality of life, eighteen questions of dental fear, and one question of awareness toward subjective health status. Results: The explanation power of subjective oral health-related quality of life on dental fear was 26.2 percent. As the subjective oral health-related quality of life increased by 1 point, the dental fear decreased at the rate of 0.645 (p<0.001). Conclusions: Higher subjective oral health-related quality of life will diminish the dental fear. Regular dental checkups and preventive treatment are very important to enhance the oral health-related quality of life in those who visit the dental clinic.
이경희 ( Kyeong-hee Lee ),김한솔 ( Han-sol Kim ),구지혜 ( Ji-hye Gu ),이윤주 ( Yun-ju Lee ),윤동아 ( Dong-a Yun ),최선주 ( Sun-ju Choi ),최유경 ( Yu-kyung Choi ) 한국치위생학회 2017 한국치위생학회지 Vol.17 No.2
Objectives: The purpose of this study was to investigate how wisdom tooth extraction is perceived, and to correct erroneous perceptions thereby establishing proper awareness. Methods: We conducted a survey on how wisdom tooth extraction was perceived among adults in 20 households in Seoul and Gyeonggi province starting in December, 2016. Results: A review of the factors influencing the perception of wisdom tooth extraction showed that the regression model was statistically significant and the model had an explanatory power of 8.3%. It was also found that those in their 20s or younger had saw a lower level of perceived oral health, and a higher level in perception in wisdom tooth extraction. Moreover, students, housewives, and professions showed a lower perception of wisdom tooth extraction. Conclusions: It is necessary to have an education program for adults aged 60 or older who have few opportunities for oral health education.