SAXS and AFM Study on Porous Silicon Prepared by Anodic Etching in HF-based Solution

김유진,김화중,Kim, Eu-gene,Kim, Hwa-Joong The Korean Institute of Electrical and Electronic 2004 전기전자재료학회논문지 Vol.17 No.11

Porous silicon materials have been shown to have bright prospects for applications in light emitting, solar cell, as well as light- and chemical-sensing devices. In this report, structures of porous silicon prepared by anodic etching in HF-based solution with various etching times were studied in detail by Atomic Force Microscopy and Small Angle X -ray Scattering technique using the high energy beam line at Pohang Light Source in Korea. The results showed the coexistence of the various pores with nanometer and submicrometer scales. For nanameter size pores, the mixed ones with two different shapes were identified: the larger ones in cylindrical shape and the smaller ones in spherical shape. Volume fractions of the cylindrical and the spherical pores were about equal and remained unchanged at all etching times investigated. On the whole uniform values of the specific surface area and of the size parameters of the pores were observed except for the larger specific surface area for the sample with the short etching time. The results implies that etching process causes the inner surfaces to become smoother while new pores are being generated. In all SAXS data at large Q vectors, Porod slope of -4 was observed, which supports the fact that the pores have smooth surfaces.

후족부 질환이 있는 환자에서 Kager씨 삼각의 단순 방사선 상의 변화

김유진,신헌규,김종민,이용택,장기웅,Kim, Eu-Gene,Shin, Hun-Kyu,Kim, Jong-Min,Lee, Yong-Taek,Chang, Ki-Woong 대한족부족관절학회 2007 대한족부족관절학회지 Vol.11 No.2

Purpose: The aim of this study was to analyze radiological change of Kager's triangle in patients with retrocalcaneal disorders. Materials and Methods: Areas of Kager's triangle and calcaneus were calculated with Heron's Formula. Average of area ratio (area of Kager's triangle / area of calcaneus) was calculated for comparison and analysis, according to disease activity and aging process. One-tailed Z-test was done with the average of area ratio. Results: Average of area ratio (area of Kager's trianlge / area of calcaneous) tends to decrease according to aging process and disease existence. Conclusion: Because area of Kager's triangle in patients with retrocalcaneal disorders tends to change according to disease activity and aging process, we should consider clinical correlation between the anatomical structure of Kager's triangle and retrocalcaneal symptoms.

한방치료를 통한 복근군의 근막이완으로 호전된 만성기침환자 치험 2례

김유진 ( Eu Gene Kim ),차윤엽 ( Yun Yeop Cha ) 한방재활의학과학회 2009 한방재활의학과학회지 Vol.19 No.3

Objectives: We supposed that abdominal muscles are related to chronic cough, because abdominal pressure and respiratory muscles are influenced by abdominal muscle function. We have evaluated the effect of myofacial releasing of abdominal muscles with oriental medical treatment by experimenting two patients suffering from chronic cough. Methods: One patient was treated with acupuncture therapy and muscle stretching exercise for myofacial releasing of abdominal muscle. The other patient was treated with hot pack therapy and abdominal respiration training for myofacial releasing of abdominal muscle. Results and Conclusions: After oriental medical treatment of abdominal muscles in two cases, We figured out that the patients were on the mend. These results suggest that myofacial releasing of abdominal muscles using oriental medical treatment was effective in improving chronic cough.

상용성 고분자 필름들간의 유리전이온도 사이에서 확산과 계면에 이동에 관한 연구

김유진(Eu Gene Kim) 한국고분자학회 1997 폴리머 Vol.21 No.4

당귀수산을 처방받은 교통사고환자의 피부저항변이도 특성에 관한 연구

김유진 ( Eu Gene Kim ),차윤엽 ( Yun Yeop Cha ) 한방재활의학과학회 2008 한방재활의학과학회지 Vol.18 No.3

Objectives : The purpose of this study was to know the characteristics of Skin Resistance Variability(SRV) in the traffic accident patients prescribed Dangkisoo-san(Dangguixu-san). Methods : 65 traffic accident patients were selected from those who took the Skin Resistance Variability(SRV) test in Oriental Medical Hospital of Sang-Ji University from March 2007 to January 2008. The traffic accident patients were prescribed Dangkisoo-san(Dangguixu-san). Mean values of factor AA on skin resistance variability of the traffic accident patients were analyzed. Results and Conclusions : The mean values of electrodermal activity of preexamination was higher than those of postexamination in all areas except 3 area in 2nd measurement. In most cases, the gap of electrodermal activity between preexamination and postexamination within the female group was higher than those of the male group. In most cases, the gap of electrodermal activity between preexamination and postexamination within the more than 21 days group was higher than those of the 20days and less group. In most cases, the gap of electrodermal activity between preexamination and postexamination within the 36 years old group was higher than those of the 35years old and less group. Dangkisoo-san(Dangguixu-san) will be more effective for acute and strong traffic accident patients than chronic and weak traffic accident patients. So, further studies will be needed.

액적연소시 NO 생성에 관한 수치해석적 연구

김유진(Eu Gene Kim),조석연(Seog Yeon Cho) 大韓環境工學會 1994 대한환경공학회지 Vol.16 No.6

대장암 환자에서 술전 병기파악시 전산화 단층촬영만으로 충분한가?

김유진(Eu Gene Kim),김광호(Kwang Ho Kim),류재현(Jai Hyun Rhyou),심강섭(Kang Sub Shim),박응범(Eung Bum Park) 대한외과학회 2000 Annals of Surgical Treatment and Research(ASRT) Vol.59 No.3

민간의료보험료 가구부담 및 보험금 수령에 따른 의료비 부담완화 효과 분석

김유진 ( Eu-gene Kim ),김윤희 ( Younhee Kim ) 한국보건경제정책학회(구 한국보건경제학회) 2017 보건경제와 정책연구 Vol.23 No.1

본 연구는 민간의료보험의 가입효과를 분석하기 위해 민간의료보험료 지출로 인한 가구의 경제적 부담 수준을 확인하고 보험금 수령이 가구의 의료비 부담 완화에 미친 영향을 분석하였다. 이를 위해 2010년부터 2012년까지 한국의료패널 3개년 자료를 이용하여 가구소득(또는 식비를 제외한 가구소득)대비 민간의료보험료가 차지하는 비중을 확인하고, 빈곤선을 적용하여 민간의료보험 납입으로 인해 가구의 경제적 수준이 빈곤선 이하로 떨어진 가구를 대상으로 빈곤 이행에 영향을 미치는 요인을 확인하였다. 이와 함께 2012년 의료패널 응답가구 중 보험금을 수령한 가구를 대상으로 보험금 수령 후 의료비 부담 수준의 변화 정도를 살펴보았다. 분석 결과 가구소득 4분위~5분위에서는 가구소득 대비 의료비의 비중이 30% 이상인 가구가 없었으나 의료비와 민간의료보험료의 합계 금액을 고려하였을 때는 30% 이상인 가구가 각 17.19%, 7.24%로 늘어났다. 또한 의료비와 민간의료보험료의 합계 금액에서 보험금 수령금액을 제외한 금액을 기준으로 가구소득 대비 지출 비중을 산출한 결과 30% 이상인 가구는 각 5.47%, 1.97%로 보험금 수령으로 인한 의료비 지출의 감소폭이 크지 않은 것으로 나타났다. The purpose of this study is to analyze the economic burden of private health insurance premium of households and to identify the effect of private health insurance on reducing the burden of medical expenditure. This study identifies the percentage of private health insurance premiums compared to the household income(or household income excluding food expense), based on the Korea Health Panel from 2010 to 2012. It also applies the poverty line and identifies the factors that affect a transition into poverty for households who fell below the poverty line due to the payment of private health insurance premiums. The study also examines the degree of change in economic burden that the receipt of insurance money made among household respondents in the 2012 Korea Health Panel survey. Particularly, there was no household for which medical cost percentage compared to the total household income was higher than 30% in the fourth and fifth quintiles of household income, while total amount of medical expenses and private medical insurance premiums, the proportion of households with 30% or more increased to 17.19% and 7.24%, respectively. After the percentage is calculated by removing the amount of received insurance money from the combined amount of medical costs and private health insurance premiums, the results show that households with a medical cost percentage of 30% or more were 5.47% and 1.97%, respectively, while other quintiles prove that received insurance money has little impact on burden of medical expenditure.

물의 용해현상이 메탄올 액적연소에 미치는 영향에 관한 수치해석 연구

김유진(Eu Gene Kim),조석연(Seong Yeon Cho) 大韓環境工學會 1994 대한환경공학회지 Vol.16 No.4

장애아동과 비장애아동의 의료이용 및 질병특성 비교

김유진(Eu-Gene Kim),김경미(Kyung-Mee Kim),유동철(Dong-Chul Yoo) 한국콘텐츠학회 2017 한국콘텐츠학회논문지 Vol.17 No.7

본 연구는 장애아동과 비장애아동의 의료이용 및 질병이환의 특성을 분석하여 건강격차를 비교하고자 시행하였다. 연구자료는 2010년도 국민건강보험공단의 표본코호트자료를 이용하여 0-19세 장애아동과 비장애아동을 대상으로 의료이용량과 진료비, 질병보유수, 다빈도질환과 아동장애와 관련질환의 환자비율 등을 비교하였다. 분석결과 장애아동은 비장애아동보다 의료이용빈도 및 입원율, 질병보유수가 많아 건강상태가 좋지 않고 진료비를 더 많이 지출하였다. 두 집단 간에 많이 겪는 다빈도질환도 차이가 나서 장애아동은 신경계통질환, 순환기계질환 및 정신행동장애의 순으로 많은 반면, 비장애아동은 호흡기계질환, 손상 및 중독질환, 감염성질환 순이였다. 장애아동은 신경계통의 선천기형질환이나 신체장애와 밀접한 건강관련질환의 의료이용이나 진료비지출이 많으나, 비장애아동은 감염성질환에서 높게 나타났다. 결론적으로 비장애아동보다 잦은 진료와 입원, 과다한 의료비 지출과 복합적으로 보유한 질환 등으로 특징지워지는 장애아동의 의료접근성을 향상시키는 다양한 보건의료정책이 필요하다. 그리고 손상으로 인한 장애가 추가적으로 발생하거나 심화되지 않도록 장애아동 및 비장애아동의 부모에게 예방교육이 필요하다. This study is to examine health care utilization and morbidity of disabled and non-disabled children in Korea to evaluate the health disparities. We used medical claim data of 2010 from the National Health Insurance Service-National Sample Cohort data. As a result of the analysis, the disabled children are not in good health condition because they have more frequency of medical service use, hospitalization rate, and more number of diseases and spent more on medical expenses than non–disabled children. Patterns of the most frequent disease differ from significantly between disable and non-disabled. Disabled children had a higher prevalence of selected birth defects and selected health conditions associated with physical disability and a lower prevalence of selected infection disease than children without disability. In conclusion, Health policy changes that would extend the access to health service for children with disabilities characterized by frequent medical care, hospitalization, excessive medical expenditure and complex diseases.