Poly(p-dioxanone)(PPDO)의 물리적 특성과 모노필라멘트 봉합사의 In vitro 가수분해 특성

이준희,고석연,고영주,신재섭,정용석,권수한,Lee, June-Hee,Ko, Suk-Yen,Koh, Young-Joo,Shin, Jae-Sup,Chung, Yong-Seog,Kwon, Soo-Han 한국섬유공학회 2010 한국섬유공학회지 Vol.47 No.4

The bulk polymerization and thermal properties of biodegradable poly(1,4-dioxan-2-one)[poly(p-dioxanone), PPDO] were investigated. The in vitro hydrolytic degradation behavior of PPDO monofilament sutures were also examined over a 16 week period at $37^{\circ}C$ and $45^{\circ}C$. The degree of PPDO polymerization decreased with increasing content of the initiator, lauryl alcohol[$CH_3(CH_2)_{11}OH$]. The thermal stability of PPDO was inversely proportional to the content of the catalyst, Sn(II) ethylhexanoate[$Sn(Oct)_2$]. Considering the efficiency of polymerization and the thermal stability of PPDO, the proper contents of Lauryl alcohol as an initiator and ethylhexanoate as a catalyst were 1600~1900 ppm and 20~30 ppm, respectively. Based on the determination of the half crystallization time, the crystallization speeds of dyed PPDO chip and monofilament suture were higher than those of undyed PPDO chip and monofilament suture. The maximum rates of crystallization of the dyed and undyed samples were observed at around $40{\sim}50^{\circ}C$ and $50{\sim}60^{\circ}C$, respectively. At the beginning of the in vitro time, the tensile strength of the PPDO monofilament suture decreased slowly but decreased considerably after a certain period, indicating that the degradation proceeded in two steps, the first occurring in the amorphous regions and the second in the crystalline regions. The average molecular weight of the PPDO monofilament suture decreased continuously from the beginning of the in vitro time, due to the random nature of the degradation process. The breaking strength retention (BSR) and molecular weight of the PPDO monofilament suture showed a quadratic function relationship.

한국 정유공장 남성 근로자의 만성질환 관련 지표를 이용한 유소견자 실태 확인 및 관리방안

이준희,Lee, June-Hee 대한안전경영과학회 2021 대한안전경영과학회지 Vol.23 No.2

The petroleum refinery industry handles a variety of complex chemical substances and employs a large number of people around the world. According to previous research, diseases caused by exposure to chemicals were quite common among workers in refineries until the 1980s. More recently, it is unusual for oil refinery workers to suffer from these serious diseases. The objective of this study was to identify the occurrence level of general diseases and any differences in lifestyle habits of workers in refineries in Korea compared with the general population. In this study, we used the results of health examinations from 2014 for workers at a large oil refinery in South Korea. In addition, based on the results of KNHANES from 2014 as representative of the population, hypertension, diabetes, anemia, hyperlipidemia, liver function abnormality, and kidney function abnormality were calculated using the standardized incidence rate. Hypertension showed a low result with an SIR of less than 1, but a high result in the case of abnormal liver function. The workers' occurrence rates of hypertension, hyperlipidemia, kidney dysfunction, and anemia were lower than those of ordinary salaried employees. however, their occurrence rate for abnormal liver function was markedly higher. In lifestyle habits, the smoking rate of workers was low while the alcohol consumption rate was quite high. This study has improved the understanding of the health status of workers in a large oil refinery in Korea, and has shown the impact of lifestyle habits related to the work environment on chronic diseases.

승마운동이 기승자의 총콜레스테롤과 아디포넥틴에 미치는 영향

이준희(June-Hee Lee) 한국운동재활복지협회 2021 운동재활·복지 Vol.2 No.1

이 연구는 승마운동이 기승자의 총콜레스테롤과 아디포넥틴에 미치는 영향을 확인하는 것을 목적에 둔다. 이를 위해 승마경험이 없는 30대 성인남성 18명에게 평보, 속보, 구보의 승마운동을 1일 50분, 주 3회, 12주간 실시하였다. 승마운동의 효과를 검증하기 위하여 Y병원에 의뢰하여 연구대상자의 혈액을 채취하였다. 채취된 혈액을 원심분리를 실시하여 총콜레스테롤과 아디포넥틴을 확인하였고, 각 변인은 이원변량 반복측정분산분석을 하였다. 연구결과로 승마운동은 총콜레스테롤은 감소하는 추세를 보였으나, 유의하지 않았다. 그리고 승마운동은 아디포넥틴은 증가하는 추세였으나 유의하지 않았다. 따라서 승마운동을 통하여 건강 증진에 효과적이나, 추가적인 연구가 필요하다. The purpose of this study is to determine the effect of horseback riding exercise on total cholesterol and adiponectin in riders. To this end, 18 adult men in their 30s who had no horseback riding experience were subjected to horseback riding exercises of Pyeongbo, Breaking News, and Kubo for 50 minutes a day, 3 times a week, for 12 weeks. To verify the effect of horseback riding exercise, blood was collected and analyzed for total cholesterol and adiponectin. As a result of the study, riding exercise showed a tendency to decrease total cholesterol, but it was not significant. In the horseback riding exercise, adiponectin tended to increase, but it was not significant. Therefore, it is effective to improve health through horseback riding, but additional research is needed.

냉전 · 탈냉전 시대의 북한의 대 남한 인식과 남북 관계 상관성 분석

이준희(Lee, June-hee) 호남대학교 인문사회과학연구소 2011 인문사회과학연구 Vol.32 No.-

이 논문은 신년사 분석을 통해 냉전에서 탈냉전으로 바뀌면서 북한의 대남한 인식에 있어서 어느 정도 변화가 있는지와 남북관계에 있어서도 탈냉전으로 전환되면서 변화가 어느 정도 나타났는지를 살펴보면서 향후 북한 변화가능성을 진단 해 보고자 하였다. 연구결과를 종합해보면 인식여부와 무관하게 부정적인 관계가 계속 증가함을 알 수 있다. 〈냉전시대〉는 미 · 소에 의한 이데올로기적 대립으로 어떠한 인식(긍정/부정)이 형성되었는가와 무관하게 부정관계가 발생되고 있음을 알 수 있다. 또한 탈냉전시대에는 긍정인식이 커지면 부정관계는 크게 줄어드는 것으로 나타나고 있으며, 부정인식이 커지면 부정관계가 늘어나는 것으로 나타났다. 특히 탈냉전시대는 긍정인식 · 긍정관계뿐만 아니라 부정인식과 부정관계 모두 냉전시대와 비교해서 크게 증가한 것이 특색이다. 탈냉전시대에 대 남한 정부에 대해 긍정인식 · 긍정관계를 증가시킬 뿐만 아니라 대남 공세적인 정책을 끊임없이 시도했음을 보여주는 것이라 하겠다. 긍정인식 · 긍정관계의 상관관계도 냉전시대에는 긍정인식이 증가하면 긍정관계도 늘어난 반면, 탈냉전시대는 오히려 줄어들었으며 부정인식 · 부정관계는 냉전시대와 탈냉전시대 공히 부정인식이 증가하면 부정관계가 늘어나는데 탈냉전시대에 증가폭(냉전 0.114→탈냉전 0.303)이 커졌음을 알 수 있다. 이것은 우리의 상식과 배치되는 것으로 탈냉전시기에는 냉전보다 부정관계가 줄어들 것으로 생각했지만 실제는(냉전 0.93 → 탈냉전 4.1) 크게 증가하였다. 이러한 현상은 북한의 지도자가 김일성 → 김정일로 교체되면서 더욱 두드러지고 있으며, 북한의 이중적인 속성을 엿볼 수 있는 결과라고 판단한다. 대남한 인식과 남북관계는 시대별(냉전/탈냉전)로 차이가 있을 것”이라는 가설에 따른 4개의 연구 과제를 통계분석 결과를 통해 검정해 보았다. T-검정을 통한 통계분석 결과 긍정 · 부정인식은 냉전/탈냉전간의 차이가 없는 것으로 나타났으며 긍정 · 부정관계는 냉전/탈냉전간의 차이가 있는 것으로 나타났다. 인식과 관계의 상관관계 분석은 긍정 · 부정 인식변화와 부정관계 중심으로 살펴보았다. 부정인식 · 부정관계는 냉전/탈냉전 공히 부정인식이 증가하면 부정관계가 늘어났다. 종합적으로 살펴볼 때 냉전시대보다는 탈냉전시대에 긍정 · 부정인식, 긍정 · 부정관계가 증가한 것으로 나타났다. 긍정인식 · 긍정관계뿐만 아니라 부정관계가 크게 증가한 것은 북한의 이중성을 엿 볼 수 있다. The aim of this report is to establish through the analysis of New Year speeches the possibility of further change in North Korea by looking at how much change there has been in the relationship between South and North Korean during the process of transformation after the Post Cold War era and how much change there has been in the North Korea perspective of South Korea as the Cold War era turned into the Post Cold War era. By piecing together the research results, it is apparent that a negative relationship is continuously increasing and that this is irrelevant to any change (positive or negative) in recognition. Irrelevant to any development of recognition(positive/negative) negative relationship is taking place. It is also apparent that during the Post Cold War era there was an inverse association between a negative relationship and positive recognition with changes in one being correlated with opposite changes in the other. Compared with the Cold War area, an especially distinctive feature of the Post Cold War era was that not only did positive recognition and positive relationship grow, but also negative recognition and negative relationship considerably increased This shows that North Korea has continuously tried to adopt an offensive doctrine towards South Korea while they were building a positive recognition and relationship with South Korea. In the Cold war era, the positive relationship grew as the positive recognition increased, but during the Post Cold War era it decreased, and the connection between the negative recognition/negative relationship was such that, if recognition increased, then this was followed by an increase of the other, and the gap between them widened ( the Cold war 0.114 --> the Post Cold war 0.303). During the cold war era, positive recognition and positive relationship were linked. It was thought that during the post cold War era the negative relationship would be less than during the Cold war era, but, contrary to common sense, it has actually greatly increased (the Cold war 0.93 --> the Post war era 4.1). These findings appear to demonstrate the duplicity of North Korea.” Attach this sentence to the end of the previous paragraph. Start a new paragraph as follows; “Our research project was based on the hypothesis that there will be differences between the Cold War and post Cold War eras in North Korea’s recognition of South Korea and the relationship with each other. The analysis of our data showed that, while there was no difference in positive and negative recognition between the Cold War and the post Cold War eras, there was a difference in positive/negative relationships between the two eras. Interrelationship analysis of recognition and relationship was performed, focusing on positive/negative recognition change and negative relationship. In both the Cold War and Post Cold War eras, an increase in negative recognition was followed by an increase in negative relationship. Overall, positive /negative recognition and positive/negative relationship have increased over the Post Cold War era compared with the Cold War era.

일반건강검진의 이상지질혈증 검진주기 변경에 대한 문제점 고찰

이준희 ( June-hee Lee ),이경재 ( Kyung-jae Lee ) 한국보건행정학회 2021 보건행정학회지 Vol.31 No.3

Background: Korea National Health Checkup Programs are aimed at the prevention and early detection of cardiovascular disease in adults. To establish a countermeasure for this tendency, The current Korea National Health Checkup Programs have been providing Health Risk Appraisal (HRA) since 2009, thereby focusing on individual lifestyle correction. However, from 2018, the dyslipidemia screening exam cycle has been changed from 2 to 4 years. Methods: In this study, we try to investigate whether policy decisions are valid based on domestic reports that have influenced policy decisions. First, considering the epidemiology of the domestic cardiovascular disease, dyslipidemia, and metabolic syndrome, the change of the 4-year cycle is appropriate or not. Second, whether the research method that applies came to make policy decisions appropriate or not. Third, our study also investigates whether the direction of policy decision was suitable for the second comprehensive national examination plan. Results: The data that are used in the previous study were that of 10 years ago and there also was a problem in selecting the data, especially the use of one of the research methods to calculate the signal to noise ratio that was aimed at improving health had some problems. This is a research method that does not match with the aim itself. Conclusion: Changing the screening cycle for dyslipidemia does not match the recent trend of general screening to effectively prevent cardiovascular disease in improving individual lifestyles in the national health checkup plan. Studying the relationship with metabolic syndrome, which can be an intermediate stage of cardiovascular disease, could be a policy direction that is more suitable for the national health examination comprehensive plan.

대도시 대리운전 기사의 안전 운행에 영향을 주는 고객의 폭언 및 폭행 실태에 관한 연구

이준희 ( June Hee Lee ),원종욱 ( Jong Uk Won ),노재훈 ( Jae Hoon Roh ),김치년 ( Chi Nyon Kim ),석홍덕 ( Hong Deok Seok ),이완형 ( Wan Hyung Lee ),김영광 ( Yeong Kwang Kim ),황정호 ( Jung Ho Hwang ),윤진하 ( Jin Ha Yoon ) 한국산업보건학회 2015 한국산업보건학회지 Vol.25 No.3

Objectives: The purpose of this study was to research ‘Daeri’ drivers who work for drunken customers as a substitute driver. This was the first study in Korea to investigate assault and verbal abuse experienced while employed as a ‘Daeri’ driver. Methods: In this study, we conducted a survey to investigate people who work as ‘Daeri’ drivers. The survey was performed from September 1 to 7, 2014. The participants were 166 adult men and women who work as full-time ‘Daeri’ drivers. Results: Participants who experienced physical violence and assault from the customers to the point of disturbing safe driving in a year were 36.1% of total respondents. People who experienced verbal abuse to the point of disturbing safe driving in a year totaled 80.4% of respondents. In addition, there were also qualitative research results. Conclusions: Acts that impede safe driving are a danger to both passengers and drivers. By protecting the safety of ‘Daeri’ drivers, we will be able to protect the safety of citizens. Therefore, it is necessary to make an effort to protect ‘Daeri’ drivers from customer violence. Furthermore, it is also necessary to research policy to emplace a legal system that can protect ‘Daeri`` drivers

수소전기동차 추진시스템 개발 및 시험

이준희(June-Hee Lee),류준형(Joon-Hyoung Ryu),이준석(June-Seok Lee) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7

북한지도자들의 우리 정부에 대한 이미지 변화와 실제 행위(관계)에 관한 연구

이준희(Lee June Hee) 한국테러학회 2018 한국테러학회보 Vol.11 No.3

본 연구는 신년사 분석을 통해 북한의 대남한 이미지와 행위(관계)의 변화를 파악하고자 하였다. 신년사 분석결과 우호적인 단어를 많이 사용하게 되면 우호적인 일들이 증가하였다. 이로서 비우호적 단어 사용빈도가 줄어들거나 비우호적 실제 행위가 감소된다고 예측되었으나 실상은 이와 달랐다. 북한지도자들의 대남한 우호적 이미지는 김정일<김일성<김정은 순으로 나타났고 비우호적 이미지에 있어서는 김일성보다 김정일이 더 비우호적으로 인식하고있고 김정일보다는 김정은이 더 비우호적으로 인식하고 있다. 북한지도자들의 대남한 우호적 실제 행위/비우호적 실제 행위 모두 김일성<김정일<김정은 순으로 나타났다. 그러나 이러한 결과는 우호적 행위가 증가되면 비우호적 행위가 줄어들 것이라는 것과 배치되는 것으로 북한의 속성과 깊은 관련성을 가지고 있다. 신년사가 사회주의 언론 특성을 띄고 있을지라도 김일성·김정일 시대에는 호의적인 행위에서는 호의적인 호칭사용을, 비우호적인 행위에서는 주로 비우호적인 호칭을 많이 사용하는 일반적인 호칭 사용법을 유지하고 있으나 김정은 시대에는 이러한 패턴과 무관하게 좋지않게 작동함을 알게 된다. 이러한 특이한 현상은 북한이 우리와의 관계를 진행하게 하면서 우호적·비우호적 호칭에 무관하게 비우호적인 행위로 반응하고 있음에 기인한 것을 알 수 있다. 북한을 연구함에 있어 북한이 대남한을 바라보는 이미지와 행위(관계)에서 우호적, 비우호적으로 이원화시켜 별도로 다루고 있음으로 생각지 않고 동일화하여 인식하게 되면 의미 파악에 있어서 잘못을 범하게 된다. 다시 말해 우호적인 관계가 증가되는 여세를 통해 서 비우호적인 행위가 축소되는 것으로 해석해서는 안 된다는 것이다. 또한, 남북관계에 있어서 우호적 남북관계와 비우호적 남북관계가 제로섬이 아니라는 것을 알 수 있다. Purpose of study is to investigate the change of North Korea s cognition and real action toward South Korea through New Year speech analysis. Increasing use of positive vocabulary increased positive actions accordingly. But it doesn t cause decreasing frequency of negative vocabulary nor negative real act. North Korea s positive cognition toward South Korea has ranked Kim Jung-ll < Kim ll-Sung < Kim Jung-En, while negative cognition has ranked Kim ll-Sung < Kim Jung-ll < Kim Jung-En. This result has deep relevance with North Korea s attribution in the way that it counters to the assumption: Negative action decreases as positive action increases. In Kim ll-Sung&Kim Jung-ll era, the pattern of positive action with positive vocabulary use , negative action with negative vocabulary use is normal. Considering the fact that New Year speech usually has socialism characteristic, this pattern is unexpectedness. The unexpectedness indicates North Korea reacts negative action regardless of positive or negative vocabulary. If you identify the positive and negative vocabulary, you should misunderstand the North s intention for using vocabulary. Dualize positive and negative vocabulary and address separately. Namely, the increasing trend of positive relation must not be interpreted to the decreasing trend of negative action. Also, positive inter-Korean relations and negative inter-Korean relations don t indicate zero-sum .

전력사용량 예측을 위한 공장 전력 관리 시스템 개발에 관한 연구

이준희(Jun-Hee Lee),권준수(Jun-Su Kwon),이명준(Myoung-Jun Lee),조시성(Si-Sung Jo),이현화(Hyun-Hwa Lee),육준연(June-Yeon Youk),조성훈(Sung-Hoon Cho) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.10

수소전기동차 332kW 영구자석동기전동기의 온도상승시험 결과 고찰

이준희(June-Hee Lee),이준석(June-Seok Lee),류준형(Joon-Hyoung Ryu),정신명(Shing-Myung Jeong),박진혁(Jin-Hyuk Park) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.7