[Ca_1-xSr_xAl₂O₄:Eu²⁺] 형광체의 상전이 및 발광특성에 관한 연구

박윤진,송현돈,정상현,이지희,황민하,김영진,Park, Yun-Jin,Song, Hyun-Don,Jung, Sang-Hyun,Lee, Jee-Hee,Hwang, Min-Ha,Kim, Young-Jin 한국재료학회 2008 한국재료학회지 Vol.18 No.1

The phase transformations and luminescent properties of Eu-doped $Ca_{1-x}Sr_xAl_2O_4$ phosphors were investigated. $Ca_{1-x}Sr_xAl_2O_4:Eu^{2+}$ phosphors were synthesized by a solid-state reaction with a flux, $H_3BO_3$. A phase transformation from monoclinic $CaAl_2O_4$ to monoclinic $SrAl_2O_4$ was observed as the x values increased. A high-temperature hexagonal phase of $SrAl_2O_4$ was formed during this transformation as an intermediate phase under an $H_2$ atmosphere due to oxygen vacancies; this did not occur in an air atmosphere. Accordingly, the emission spectra shifted from a blue region to a green region as x increased.

지식 한 줌 - 소소한 일상의 소중함을 깨닫게 하는 독서에세이

박윤진,Park, Yun-Jin 국가핵융합연구소 2010 핵융합뉴스레터 Vol.47 No.-

우리나라 자살사망률 고저 지역 간 인구사회경제학적 특성, 건강행태, 의료이용 및 정신건강 비교연구

박윤진(Yun-Jin Park),홍지영(Jee-Young Hong),김현수(Hyun-Soo Kim),배석환(Seok-Hwan Bae),김광환(Kwang-Hwan Kim),이무식(Moo-Sik Lee) 한국산학기술학회 2015 한국산학기술학회 학술대회 Vol.2015 No.1

본 연구는 2009년 지역사회건강조사 자료를 활용하여 자살사망률이 높은 지역과 낮은 지역에 거주하는 지역주민에게 영향을 미치는 요인을 분석하고, 지역별 정신보건사업 및 자살예방사업 정책을 제안하기 위함이었다. 자료는 통계청의 사망원인자료에서 2009년 연령표준화자살사망률(인구십만명당)과 2012년 2월에 공개된 2009년 지역사회건강조사 원시자료를 이용하였다. 분석결과 자살사망률의 높은 지역과 낮은 지역에 거주하는 지역주민에 영향을 미치는 정신건강수준을 분석한 결과 우울감경험, 자살생각에서 유의한 결과가 나타났다.

전신진동운동이 노인성 치매환자의 맥파속도와 뇌 기능 지수에 미치는 영향

박윤진(Yun Jin Park),조혜영(Hye Young Cho),김명기(Myung Ki Kim) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.52

The purpose of this study is to present the clinical effects of whole body vibration exercise on senile de-mentia patients by analyzing what kind of effects it has on the pulse wave velocity and brain activation of thirty mild-moderate senile dementia patients compared to both walking and non-exercise by applying ten weeks of whole body vibration exercise. The conclusions resulting from all the process of experiment are as follows. 1. The change in b-aPWV of both in WVG and WEG due to exercise type showed significant difference(p<.05) compared to NEG. 2. The change in the Fp1, Fp2, F3, F4 of attention concentration quotient(SMR/theta) in WVG and WEG due to exercise type showed significant difference(p<.05) compared to NEG. However there no difference ob-served T3, T4, P3, P4 of attention concentration quotient. 3. The change in the Fp1, Fp2, F3 of activity quotient(low beta/theta) in WVG and WEG due to exercise type showed significant difference(p<.05) compared to NEG, and F4 of activity quotient in WVG due to exercise type showed significant difference(p<.05). However there no difference observed T3, T4, P3, P4 of activity quotient. Concluding from the experimental results listed above, the whole body vibration exercise is proven to be the most effective exercise type for treating senile dementia patients.

열원장비 내진설계 및 유효성 검증에 관한 연구

박윤진(Yun Jin Park),우창호(Chang Ho Woo),이장현(Jang Hyun Lee),신일용(Il Yong Shin) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

본 연구는 2019년 제정된 건축물 내진설계 기준에 따라 등가정적하중을 이용한 내진계산에 따른 설계지진력을 검토한 결과에 대하여 유한요소해석을 통한 유효성 검증을 목적으로 하였다. 열원장비 내진설계에서 건축물 내진설계 기준에 따라 등가정적하중을 이용한 내진설계의 방법을 제시하고, 내진앵커, 내진 스프링 마운트, 이동방지/전도방지 내진 스토퍼를 이용한 지지방식을 분류하였다. 등가정적하중을 이용한 내진계산을 통하여 선정된 내진 제품의 경우 유한요소해석 결과 성능을 만족함을 연구를 통해 확인하였다.

고려후기 왕사,국사의 사례와 기능의 변화

박윤진 ( Yun Jin Park ) 한국중세사학회 2005 한국중세사연구 Vol.0 No.19

고려 천태종의 종파 문제 : 조선초 천태종의 선종 귀속의 역사적 배경

朴胤珍(Park Yun-jin) 고려사학회 2010 한국사학보 Vol.- No.40

新羅末 高麗初 高僧碑에 보이는 종법적 표현과 계보 인식

朴胤珍(Park, Yun Jin) 한국사학회 2013 史學硏究 Vol.- No.109

신라말 고려초 고승비문에는 승려의 師資관계를 부계 혈통 의식이 내포된 종법적 용어로 표현한 사례가 다수 등장한다. 즉 嚴君이나 令子ㆍ?子, 來孫과 같은 부계 혈통 용어와 本籍과 같은 단어를 사용하고 있다. 한편 이러한 종법적 표현 방식을 통해 자신의 계보를 서술하면서, ‘九山門’ 범주의 국내 계보를 중시하기는 하지만 국내 스승과는 별개인 자신만의 중국 계보를 강조한 경우도 있었다. 뿐만 아니라 자신들의 계보 중 선택적으로 강조하는 것이 동일 산문, 동일 스승의 문도간에도 차이가 있어서 계보관이 동일하지 않았음을 알 수 있다. 이는 당시 산문 의식이 후대의 ‘구산문’과 같이 넓지 않았음을 보여준다. 또한 국내 스승과 차이를 가지는 중국 계보를 자랑스럽게 드러낸 것은 중국 선종 속에서 자신의 위상을 확인하고자 하는 의도로 이해했다. 한편 동일한 스승의 문하였던 승려들의 비문 검토를 통해서는 상호간 동문 의식이 거의 없었음도 확인하였다. 梵日의 제자였던 開淸과 行寂은비슷한 시기에 범일의 문하로 생활했는데도 불구하고 각자의 비에서 서로에 대한 언급이 없을 뿐만 아니라 스승인 범일의 유일한 수제자로서 각자를 기술하고 있다. 이는 개청과 행적 본인뿐만 아니라 해당 고승비의 건립을 주도한 그들의 제자들 입장에서 고승비의 주인공을 강조하기 위한 의도를 가지고 동문에 대한 서술을 회피한 것이었다. 그러나 자신들 세력의 번성함을 강조하기 위해 산문의 구성원을 소개하는 것도 의미가 있다는 점을 생각해보면, 역시 후대만큼의 산문 의식은 존재하지 않았음을 알 수 있다. 대부분의 고승비에는 스승과 버금갈 정도의 의미가 있는 승려를 ‘師兄’으로 언급할 뿐 수평적인 동문에 대한 언급이 없었다. 그리고 남종선의 초전자로서 道義의 위상은 ‘迦智山’만의 주장은 아니고, 『慧昭碑』와『道憲碑』에서도 이를 인정했고 이런 인식은 고려시대까지 지속되었다. 그런데 도의를 신라 선종의 시조로서 표방한 내용이 도의의 손제자인 體澄碑에서는『禮記』?를 인용하여 중국 선종의 別子로서 우리나라 선종의 1祖가 되었다는 종법적 표현으로 설명하고 있다. 이러한 도의의 위상은 眞空大師□運이 도의를 직접 만나지도 않은 채 그의 제자라고 자칭하게 한 원인이었다. The epitaph of high priests established during the end of Shilla Dynasty and the beginning of Koryo Dynasty shows many cases of using patrilineal terms to express a master-disciple relationship. Terms such as umgun(嚴君), youngja(令子), chongja(?子), lason(來孫) are some of the examples. Some priests emphasized the Chinese-side of their lineage, while also valuing Korean lineage of ‘Gusanmun (nine mountain monasteries, 九山門)’. It is construed that high priests had liberty to choose particular lineage they wanted to underscore, and also that even students of the same priest did not have shared idea of lineage. Also, the epitaph of priests who had the same teacher show that they had little sense of solidarity. These suggest that the sense of belonging to the same sect of Buddhism was not as strong as it was later in Gusanmun. Meanwhile, in many written documents in addition to the claim of ‘Gajisan(迦智山)’ sect, was priest Toui(道義) widely perceived as the founder of the Zen sect, and such belief carried into the Koryo Dynasty. On the epitaph of priest Toui’s disciple, Chejing (體澄), was quoted a phrase from the Confucian book of etiquette, Yegi(禮記), to confirm that Toui was the founding father of the Zen sect.

『고려사절요(高麗史節要)』의 범례와 불교 기사 수록 방식

박윤진 ( Park Yun-jin ) 한국중세사학회 2022 한국중세사연구 Vol.- No.69

At the stage of Goryeosajeolyo, the legend was first introduced, which recorded the first visit of each king and incident events as it was cumbersome to record all the events of the temple, Buddhist initiation ceremony of receiving the commandments of Buddhism, and offering donations to temples, all of which was the ordinary work of the king at the time. In Goryeosajeolyo, in addition to the actual record of the visit to temples, the sentence “[He] frequently visited the temple from this point on” was added to clearly indicate that this was the first visit, and 13 of the total 34 Kings were in such case. As Goryeosajeolyo had a system in which the year following the accession to the throne is used as the first year to calculate the year, most of the records of first visit were recorded after the first year of the King’s reign, not the year of accession. The visit to the temple at this time was “the king’s daily affairs at that time,” and ceremonies such as Yeondeunghoe and Palgwanhoe and the temple visit for the parents’ Gisindoryang were not included. Despite the fact that the sentence that describe the first visit to the temple by King Munjong was recorded after “only one’s own opinion,” even though there was a content that could be considered a visit to temple in Goryeosajeolyo during the periods of Deokjong and Jeongjong, which was right before that, there is no sentence after “only one’s own opinion.” In addition, there were quite a few cases where the legend was not accurately observed, which was supposed to record the first visit in the Goryeosajeolyo. This was explained as the historians in charge of this royal dynasty did not follow the generally agreed-upon recording method despite that the legend existed. The article on the first visits of King Chungryeol and King Gongmin during the intervention period by the Yuan Dynasty confirmed the characteristics of the times where the Kings visited the temple with the princess of Yuan Dynasty, not alone. In addition, the fact that there were three types of sentences stating, “[He] frequently visited the temple from this point on,” makes it clear that each historian in charge was able to freely decide the content and method. It is also mentioned that historians in charge of each royal family can be divided into several groups based on such recording method of the first visit to temples.

안정시 및 운동 강도에 따른 고교축구선수의 뇌혈류 속도 및 저항지수의 변화

박윤진(Yun Jin Park),서용곤(Yong Gon Seo),이성기(Sung Ki Lee),김경태(Kyung Tae Kim),김명기(Myung Ki Kim) 한국사회체육학회 2010 한국사회체육학회지 Vol.0 No.41

The purpose of this research is to prepare exercise stability/safety by predicting possible dangerous situations during competitions in advance and presenting appropriate exercise intensity based on TCD(Transcranial Doppler ultrasound) analysis of Systolic, Diastolic and Mean Blood Flow Velocity, Pulsatility Index(PI) and Resistive Index(RI) from MCA according to exercise intensity as well as at rest. The subjects were 10 soccer players from high school over 5 years in experience. To analyze Cerebral Blood Flow, PI and RI Changes according to exercise intensity, treadmill test was performed among single group at rest and with moderate, high and maximal intensity. In comparison with the velocities at rest, Systolic, Diastolic and Mean Blood Velocity were increased at moderate and high intensity but they were decreased at maximal intensity(p<0.05). On the other hand, Pulsatility and Resistive Index were increased at all the other intensities(p<0.05). In a repeated measured One-way ANOVA, there were significant differences between the each measured values-blood velocities and indexes-and the various exercise intensities (p<0.05). In a post Hoc test, there were significant differences between rest and the other intensities in Systolic Blood Velocity ; rest and moderate/high intensity, moderate and maximal intensity, and high and maximal intensity in Diastolic Blood Velocity ; rest and moderate/high/maximal intensity, and high and maximal intensity in Mean Blood Velocity ; rest and moderate/maximal intensity, and moderate and high intensity in Pulsatility and Resistive Index (p<0.05).