제5차 대한간학회 춘계학술대회 초록집 : 포스터 토의 순서 ; 복수의 감별 진단에 있어서 알부민, 빌리루빈, lactate dehydrogenase 및 adenosine deaminase의 복수-혈청 농도비

정재연 ( Jeong Jae Yeon ),전재윤 ( Jeon Jae Yun ),백용한 ( Baeg Yong Han ),서정훈 ( Seo Jeong Hun ),김정호 ( Kim Jeong Ho ),이관식 ( Lee Gwan Sig ),한광협 ( Han Gwang Hyeob ),문영명 ( Mun Yeong Myeong ) 대한간학회 1999 Clinical and Molecular Hepatology(대한간학회지) Vol.5 No.1(S)

해외금융계좌신고제도(FATCA) 도입과 정부간 협정(한미 IGA) 체결에 따른 보험업계의 주요이슈 검토 및 개선방안

정재연(Jae-Yeon Jeong),유혜영(Hae-Young Ryu) 대한경영학회 2015 大韓經營學會誌 Vol.28 No.5

경기도 어린이 의료비 상한제 도입에 대한 시나리오 분석

정재연 ( Jeong Jae Yeon ),윤인혜 ( Yoon In Hye ),황성완 ( Hwang Sung Wan ),허윤정 ( Heo Yun Jung ) 경희대학교 경영연구원 2021 의료경영학연구 Vol.15 No.2

Purposes: This study purposed to predict the government finances required for the introduction of children’s medical expenditure limit system in gyeonggi-do. Methodology: Status analysis, scenario analysis and trend prediction analysis were conducted to estimate using Korea Health Panel Survey 2014-2017. In study, children were classified into 4 categories, preschool children, elementary school students, middle school students, high school students, all analyzes were conducted in 4 categories. Findings: In the analysis of the current status of medical expenditure for children, preschooler were the highest percentage of total medical expenditure and high school students were highest medical expenditure per person. In the scenario analysis, the financial requirements for the introduction of the limit system were 1,489~2,566 billion won(at 0.5 million won upper limit), 818~1,640 billion won(at 1 million won upper limit), 728~1,554 billion won(at 1.5 million won upper limit). In the trend prediction analysis, medical expenditure of more than 1 million won are predicted to increase to 1 trillion 98.1 billion won in 2030. Practical Implications: So, the introduction of the 1 million won limit system on children’s medical expenditure as a way to strengthen medical coverage for children is a system with high possibility and reality. This further improves the quality of life of children and their families, it will be a system that enables children to grow into healthy adults.

요양원 입소노인의 일상생활 적응경험

정재연(Jeong Jae Yeon),김영경(Kim Yeong Kyeong) 한국성인간호학회 2007 성인간호학회지 Vol.19 No.2

복부 전산화단층촬영에서 Bolus triggering기법을 이용한 체질량 지수 변화에 따른 최적의 지연시간 연구

정재연(Jeong Jae yeon),김홍석(Kim Hong suck),최진영(Choi Jin Young),임상묵(Lim Sang Muk),조영기(Kim Dae Hyun),김대현(Cho Young Ki) 대한CT영상기술학회 2013 대한CT영상기술학회지 Vol.15 No.1

목적 조영증강 CT 검사에서 병변의 진단과 조영제 사용 등에 많은 영향을 주고 있는 조영증강 시간을 환자의 성별, 연령별, 비만, 고혈압 유무 등의 체질량지수에 따라 복부 대동맥에서 Bolus triggering 기법을 이용하여 평균 도달 시간이 사람마다 각각 다르게 나타난다는 점을 착안하여 조영 시간에 영향을 주는 인자들에 대해 살펴보고 환자방어의 최적화를 위한 그들의 상관관계에 대해 유용성을 알아보고자 연구하였다. 대상 및 방법 2010년 8월부터 2011년 8월까지 12개월간 본원에서 복부 전산화단층촬영을 시행한 환자 중 장비에 내장된 응용 소프트웨어 Bolus triggering 기법을 이용하여 검사를 시행한 환자를 대상으로 하였다. 정상 환자군에서 남, 여 각 50명씩 100명, 비만 환자군에서 남, 여 각 50명씩 100명, 고혈압 환자군에서 남, 여 각 50명씩 100명, 비만과 고혈압이 동시에 있는 환자군에서는 남, 여 각 40명씩 80명이었다. 스캔 범위를 결정한 다음 20G로 정맥내 주사를 확보하여 조영제 양을 3.5 ml/s, 2 ml/kg의 주입속도로 주입하고 난 후 생리식염수 20 ml를 같은 주입속도 비율로 주입하여 균일한 조영증강이 정점에 도달하게 하였다. 복부 대동맥에서 Bolus triggering을 실시하여 100 HU되는 시점으로부터 15초 후 영상을 얻기 시작하였다. 선량측정은 전체 스캔 선량을 표시하는 DLP값을 이용하여 비교하였다. 결과 연령별 분석에서 연령이 증가할수록 모니터링 횟수가 증가되었고 평균 도달 시간이 늦어지는 것을 알 수 있었으며 통계적으로 유의한 차이를 보였다(p= .001). 성별 분석에서는 남자군이 여자군보다 모니터링 횟수가 증가되었고 평균 도달 시간이 늦어지는 것을 알 수 있었으며 통계적으로 유의한 차이를 보였다(p= .001). 환자의 특성 중 100 HU값의 조영증강 시간은 체질량지수 측정 결과 비만 환자군 또는 고혈압 환자군 보다는 비만과 고혈압을 동시에 가지고 있는 환자군에서 모니터링 횟수가 증가되었고 평균 도달 시간이 늦어지는 것으로 나타냈다(p= .001). 기존의 모니터링 스캔 지연시간 15초를 비만 환자나 질환의 유무 및 정도에 따라 조절하여 모니터링 횟수 분석을 통해 적용했을 때 평균 4.4회로 DLP값 0.214 mSv였고, 모니터링 시작 시간을 4초 후에 시작함으로써 DLP값 0.214 mSv의 방사선 노출을 감소시킬 수 있었다. 비만인 남자 환자군에서 평균 5.4회로 DLP값 0.283mSv, 여자 환자군에서 평균 4.38회로 DLP값 0.212 mSv로 나타냈다. 고혈압인 남자 환자군에서 평균 5.18회로 DLP값 0.268 mSv, 여자 환자군에서 평균 3.62회로 DLP값 0.182 mSv로 나타났다. 결론 환자의 특성 중 100 HU값의 조영증강 시간은 연령이 증가할수록, 성별이 여자군 보다는 남자군에서, 체질량지수 측정결과 비만과 고혈압을 동시에 지닌 환자군에서 조영증강 시간이 증가하는 것으로 나타났다. 본 실험에서와 같이 모니터링 자료를 관리하여 환자 개개인의 특성을 알고 접근한다면 1년에 최소 2~3번까지 추적검사를 하는 환자에게 피폭되는 선량값을 줄일 수 있을 것으로 사료된다. Ⅰ. Purpose The purpose of this study is to review the factors influencing the contrast time and to identify the usefulness of their correlations of the factors for the optimization of patient protection, considering that in contrast enhancement CT, contrast enhancement time influences much on the lesion diagnosis and the use of contrast agent and average arrival time varies among people by sex, age, obesity, BMI and hypertension. In this study, it was measured at abdominal aorta using Bolus triggering technique. Ⅱ. Meterial and Methods The subjects were the patients who had a test using Bolus triggering technique among the patients who had abdominal Computed Tomography in Chonbuk National University Hospital for 12 months from August 2010 to August 2011. Subjects were selected as 100 people (50 males and females respectively) from normal group, 100 people (50 males and females respectively) from the group of hypertension patients, and 80 people (40 males and females respectively) from the group with obesity and hypertension together. After determining the scan scope, contrast agent was injected at 3.5 ml/s or 2 ml/kg by securing the intravenous injection with 20 gauge and 20 ml physiological saline was injected at the same injection speed to make the even contrast enhancement arrive at peak. Performing Bolus triggering at abdominal aorta, images were acquired from 15 seconds after 100HU. Dosimetry was compared using DLP value showing the total scan dose. Ⅲ. Result From the analysis by age, the times of monitoring increased with the increase of age, average arrival time became delayed, and the difference was statistically significant (p= .001). In the analysis by sex, male patients had more monitoring sessions than female patients, average arrival time was delayed, and the difference was also statistically significant (p= .001). From the characteristics of the patients, contrast enhancement time of 100HU was seen more frequently among the group with obesity and hypertension together than the group of obesity or hypertension and the arrival time was later in obese and hypertension group (p= .001). When applying by coordinating the conventional monitoring scan delay time (15 seconds) according to the obesity or the presence of a disease and analyzing the monitoring times, the average monitoring times was 4.4 or 0.214 mSv in DLP value. By adjusting the monitoring starting time to 4 seconds late, radioactive exposure such as DLP value of 0.214 mSv could be reduced. It was shown as 5.4 times and 0.283 mSv of DLP in obese male patients, and 4.38 times and 0.212 mSv of DLP in obese female patients. It was shown as 5.18 times and 0.268 mSv of DLP in hypertension male patients, and 3.62 times and 0.182 mSv of DLP in hypertension female patients. Ⅳ. Conclusions Contrast enhancement time of 100 HU increased in the patients who were older males and had obesity and hypertension together. If approaching the characteristics of each patient by managing the monitoring data just as in this experiment, we may be able to reduce the radioactive dose that the patients would have who should have at least 2-3 times follow up treatment a year.

창업관련 조세지원제도의 개선방안

정재연(Jae-Yeon Jeong) 한국조세연구포럼 2021 조세연구 Vol.21 No.4

[연구목적] 본 연구는 창업관련 조세지원제도를 종합적으로 검토하여 문제점을 도출하고, 혁신창업 생태계 조성을 위한 개선방안을 제시하는 것을 목적으로 한다. [연구방법] 본 연구는 선행연구 검토 후 창업관련 조세지원제도를 직접지원, 간접지원 및 창업자금 조달 지원으로 분류하고, 조세정책적 관점에서 각 규정의 문제점을 도출한 후 각 문제점에 대한 개선방안을 제시하였다. [연구결과] 첫째, 직접지원에 대해서는 업종 요건을 현행 positive방식에서 negative방식으로 변경함으로써 중소기업이 원칙적으로 모두 감면을 적용받을 수 있도록 대상을 확대하고, 여성기업과 생계형 창업에 대한 지원을 강화할 것을 제안하였다. 둘째, 간접지원에 대해서는 중소기업창업투자회사 등의 주식양도차익 등에 대한 비과세 규정에 대한 폐지를 검토하고, 창업자 등에 투자에 대한 과세특례와 벤처투자조합 출자 등에 대한 소득공제 제도의 적용대상을 일치시킬 것을 제안하였다. 셋째, 창업자금의 조달 지원에 대해서는 60세 이상이라는 부모의 연령요건을 폐지하고, 조부모로부터 증여받은 경우에도 과세특례를 적용받을 수 있도록 요건을 완화할 것을 제안하였다. [연구의 시사점] 본 연구가 창업 활성화를 통해 경제활력을 제고하고 양질의 일자리를 창출하고자 하는 창업관련 조세지원제도의 취지를 달성하는데 도움이 될 수 있기를 기대한다. [Purpose] The purpose of this study is to identify problems by comprehensively examining start-up related tax support systems, and present improvement plans for start-up enterprises. [Methodology] Tax support systems for start-up enterprises were classified into direct support, indirect support, and support for start-up financing, problems in individual regulations were derived from viewpoint of tax policies, and improvement plans for individual problems were presented. [Findings] First, for direct support, this study proposed to expand the targets so that all small and medium-sized enterprises (SMEs) can be applied with tax breaks. Second, for indirect support, this study proposed to review the abolition of non-taxation provisions on stock transfer gains, etc. of SME start-up investment companies, etc. and unify the targets of the application of the special tax treatment for founders, etc. and the income tax deduction system for investments in venture capital funds, etc. Third, for support for start-up financing, it was proposed to abolish the parental age requirement of 60 years or older and relax the requirements so that special tax treatment can be applied to cases where properties were given by grandparents too. [Implications] It is hoped that this study will be helpful in achieving the purpose of the system to enhance economic vitality and create high-quality jobs through revitalization of start-ups.

대한간학회지 제8차 춘계학술대회 초록집 : 포스터 발표 ; 만성 B형 간염환자에서 라미뷰딘 투여 종료 후 재발양상

정재연 ( Jeong Jae Yeon ),이기명 ( Lee Gi Myeong ),유병무 ( Yu Byeong Mu ),함기백 ( Ham Gi Baeg ),김진홍 ( Kim Jin Hong ),조성원 ( Jo Seong Won ) 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)

산후관리서비스가 산모의 건강관련 삶의 질에 미치는 영향

정재연 ( Jae Yeon Jeong ),차선정 ( Sun Jung Cha ),구여정 ( Yeo Jeong Gu ),유기봉 ( Ki Bong Yoo ) 한국병원경영학회 2020 병원경영학회지 Vol.25 No.4

Purposes: This study purposed to identify influence of postpartum care services on health-related quality of life in women after birth. Methodology: Korea Health Panel Survey 2009-2015 provided by the Korea Institute for Health and Social Affairs and National Health Insurance Service was used for the analysis. The health-related quality of life evaluate as a EuroQoL-5D(EQ-5D-3L, used the weight of the CDC) was used as dependent variables. Postpartum care services was used as independent variable. Demographic factors(education, economic activity, region, house income), health related variable(presence of chronic disease, self-rated health), birth related variable(birth-related problem, childbirth, pregnancy of advanced maternal age) used as covariates. Regression analysis was used. Findings: The rate of use of postpartum care services is increasing year by year. Postpartum care services and self-rated health positively influence on the health-related quality of life in women after birth and chronic disease and birth-related problem negatively influence on. Practical Implications: Therefore, it is necessary that the government’s policy of the postpartum care service be expanded and systematized to increase accessibility on. There are rare studies on the health-related quality of life of women after childbirth, adjusted for birth-related variables. So this study has significance.

Dosimeter를 이용한 CT 검사실의 공간선량 분포에 대한 비교 분석

정재연(Jae yeon Jeong),김영빈(Yeong bin Kim),구양수(Yang su Ku),이광원(Gwang won Lee),조영기(Yeong gi Cho) 대한CT영상기술학회 2011 대한CT영상기술학회지 Vol.13 No.1

목 적 공간선량은 방사선의 이용과 관리에 중요한 사항이며 더욱이 방사선 관계종사자들은 상대적으로 방사선 구역에 오래 머물기 때문에 각별한 주의가 필요하다. CT검사실 조정실 내ㆍ외부의 공간선량을 측정하여 이에 대한 중요ㆍ위험성 인식 및 작업종사자가 받는 방사선피폭 을 감소시킬 수 있는 방안을 마련하고자 한다. 대상 및 방법 2010년 3월 1일부터 6월 30일까지이며 본관 CT실 조정실 내. 외부의 4개월 동안 발생한 공간선량을 비교분석하였다. 대상 장비로는 16 MDCT(Somatom Sensation16 Siemens, Germany)와 Dual Source CT(Somatom Definition Siemens, Germany)장비를 사용 하였으며, 또한 같은 공간에서의 조정실 실내 구조를 갖춘 상태에서 공간선량을 측정하였다. 측정기로는 Thermo ESM FH40G-L10 2EA를 사용하여 공간선량을 측정 하였으며 차폐기구는 Lead Glass 2EA(TRCT-500-140)를 이용하였다. 결 과 측정 기간동안 조정실 실내의 Max값은 18.3 uSv이었으며 실외의 Max값은 52.8 uSv 이었다. 조정실 실내의 Dose값은 20.22 uSv/week이었고, 실외 Dose 값은 72.64 uSv/week의 공간선량율을 보였다. 공간선량을 줄여 보고자 Lead Glass TRCT-500-140을 사용하였으며 사용전 조정실 실내의 평균 Max값은 4.61 uSv/week이었으며, 사용 후의 조정실 실내의 평균 Max값은 2.09 uSv/week이었다. 사용 전과 후의 2배의 공간선량율 차이를 보였다. 사용 전 조정실 내ㆍ외부의 평균 Dose값은 20.22 uSv/week, 72.64 uSv/week이었으며 사용 후 조정실 내ㆍ외부의 평균 Dose값은 12.8 uSv/week, 32.36 uSv/week의 공간선량율 차이를 보였다. 결 론 공간선량은 식약청 기준치인 0.1 mSv/week 보다 낮은 72.64 uSv/week로 비교적 안전한 것으로 보이지만 방사선방호의 최적화라는 관점에서 볼 때 저선량의 방사선이라도 장기적으로 피폭을 받게 되면 확률적영향이 발생될 수 있으므로 개인별 피폭 선량 데이터를 철저히 관리 분석하여 저감화조치 ALARA와 같은 체계적인 개인별 피폭선량 데이터의 철저한 관리로 개인 피폭관리에 만전을 기울어야 할 것이다. Ⅰ. Objective Spatial dose is a crucial factor in the use and management of radiation, and radiation- related workers should be managed more carefully because they stay in the radiation area relatively longer. Thus, this study purposed to measure spatial dose inside and outside of the control room of the CT Room, to emphasize the importance and risk of radiation exposure, and to make a plan to reduce radiation- related workers’ exposure to radiation. Ⅱ. Subjects and methods This study was conducted from March 1 to June 30, 2010, and made comparative analysis of spatial dose inside and outside the control room of the CT room in the main building for the four months. Machines used in this study were 16 MDCT (Somatom Sensation16 Siemens, Germany) and Dual Source CT (Somatom Definition Siemens, Germany), and spatial dose was measured in the environment where a control room was installed inside the same space. Spatial dose was measured using Thermo ESM FH40G-L10 2EA, and lead glass 1EA (TRCT-500-140) was used as a shielding tool. Ⅲ. Results During the measuring period, the maximum does inside the control room was 18.3 uSv, and that outside the room was 52.8 uSv. The spatial dose rate inside the control room was 20.22 uSv/week, and that outside the room was 72.64 uSv/week. In order to reduce spatial dose, we used lead glass TRCT- 500-140. Then, the mean maximum dose inside the control room decreased from 4.61 uSv/week before the use of the lead glass to 2.09 uSv/week after, showing a decrease by half with the use of the shielding tool. The mean spatial dose rates inside and outside the control room before the use of lead glass were 20.22 uSv/week and 72.64 uSv/week, respectively, and those after the use of lead glass were 12.8 uSv/week and 32.36 uSv/week, respectively, showing significant differences. Ⅳ. Conclusions Spatial dose looks relatively safe as 72.64 uSv/week, which is lower than 0.1 mSv/week, the upper limit required by KFDA, but from the viewpoint of the optimization of radiation protection, even to low-dose radiation, long-term exposure may increase the probability of damage. Therefore, individuals’ exposure should be controlled thoroughly through systematic analysis and management of data on individuals’ exposure dose such as ALARA.

적층 복합재 팬-블레이드의 적층각도 최적화 설계

정재연,조영수,하성규,Jeong, Jae-Yeon,Jo, Yeong-Su,Ha, Seong-Gyu 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.11

The layered composites have a character to change of structure stiffness with respect to the layup angles. The deformations in the fan-blades to be initially designed by considering efficiency and noise, etc., which arise due to the pressure during the fan operation, can make the fan inefficient. Thus, so as to minimize the deformations of the blades, it is needed to increase the stiffness of the blades. An investigation has been performed to develop the three dimensional layered composite shell element with the drilling degree of freedom and the optimization module for finding optimal layup angles with sensitivity analysis. And then they have been verified. In this study, the analysis model is engine cooling fan of automobile. In order to analyzes the stiffness of the composite fan blades, finite element analysis is performed. In addition, it is linked with optimal design process, and then the optimal angles that can maximize the stiffness of the blades are found. In the optimal design process, the deformations of the blades are considered as multiobjective functions, and this results minimum bending and twisting simultaneously.