The Effect of Splinting with Concomitant Root Planing;Clinical and Digital Subtraction Radiographic Study

이지영,계승범,김원경,이용무,구영,류인철,정종평,최상묵,한수부,Lee, Ji-Young,Kye, Seung-Bum,Kim, Won-Kyoung,Lee, Yong-Moo,Ku, Young,Ryu, In-Chul,Chung, Chong-Pyoung,Choi, Sang-Mook,Han, Soo-Boo The Korean Academy of Periodontoloy 2001 Journal of Periodontal & Implant Science Vol.31 No.1

스프린트는 치주처지료에서 부가적 처치법으로 널리 사용되고 있으며, 한편, 디지털 공제 활영술은 기존방사선촬영술의 한계점을 극복하기 위해 기발된 새로운 방법이다. 이번 연구에서는 치근활택술 단독시행시와 스피린트 병행 처치시의 효과를 임상적, 방사선학적으로 비교하였다. 중정도의 성인성 치주염을 가진 20명의 환자를 대상으로 하되 10명은 치근활택술 단독으로, 나머지 10명은 스프린트 병행처치로 처치하였다. 임상적, 방사선학적인 평가는 처치전, 처치후 6개월에 행하고, 임상적 평가의 경우 3개월에 추가로 실시하였다. 이번 연구에서 사용된 임상 지수로는 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상부착수준, 임상부착증가, 탐침시출혈, 치아동요도 등이며, 방사선학적 평가는 기존 방사선촬영술에 의한 방법과 디지털 공제촬영수렝 의한 방법으로 행하였다. 디지털 공제 촬영술에 의한 평가시, 영상은 Digora 프로그램에 의해 획득하고 Emago 프로그램으로 처리 하여 다음과 같은 결론을 얻었다. 1. 처치후 3개월에 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상적부착수준, 탐침시 출혈 등의 임상지수들이 변했으며, 특히 이러한 변화는 치주낭깊이, 치은퇴축, 탐침시출혈에서 유의성이 있었다. ( p<0.05 ) 그러나 두군간 차이는 인정되지 않았다. ( p>0.05 ) 2. 처치후 6개월에도 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상적부착수준, 탐침시출혈, 치아동요도 등의 임상지수들이 변했으며, 특히 이러한 변화는 치주낭깊이, 치은퇴축, 탐침시출혈, 치태지수, 치아동요도에서 유의성이 있었다. ( p<0.05 ) 그러나 두 군간 차이는 인정되지 않았다. ( p>0.05 ) 3. 켄달 상관분석시, 임상적 평가와 기존 방사선 촬영술에 의한 평가사이의 관련성을 낮았으며 거의 0에 가까운 수치를 보였으며 (r=0.110, p=0.639 ) 임상적 평가와 디지털 공제 방사선 촬영술에 의한 평가사이에서 약간 높은 관련성을 보였다. ( r=0.257, p=0.315 ) 즉 치주치료후의 골변화는 디지털 공제 방사선 촬영술에 의한 평가시 기존 방사선 사진보다 임상적 부착증가와 더욱 긴밀한 관련성을 보여준다. 이상의 결과로 볼 때, 스프린팅 처치는 치주 치료에 있어 치근활택술에 부가적 표과를 제공하지 못한다.

Lactobacillus gasseri 505를 사용한 꾸지뽕잎 추출물 첨가 신바이오틱스 발효유의 면역활성 조절 연구

이지영,김수경,신용국,오남수,Lee, Ji Young,Kim, Su Gyeong,Shin, Yong Kook,Oh, Nam Su 한국유가공학회 2018 Journal of Dairy Science and Biotechnology (JMSB) Vol.36 No.1

This study examined the immunomodulatory effects of milk fermented with based on the synbiotic interaction between Cudrania tricuspidata leaf extract (CT) and Lactobacillus gasseri 505. Raw 264.7 macrophages were treated with milk (Control), milk supplemented with 0.2% CT (CT-milk), or CT-milk fermented with L. gasseri 505 (FCT). FCT-treated cells showed higher NO production than the other groups. ELISA revealed that FCT produced the highest enhancement of the production of pro-inflammatory cytokines such as $TNF-{\alpha}$, $IFN-{\gamma}$, $IL-1{\beta}$, IL-6, IL-2, IL-12, and IL-10. Furthermore, FCT also increased the gene expression of pro-inflammatory mediators such as iNOS and COX-2 in a concentration-dependent manner. Collectively, these results indicate that the synbiotic interaction between CT and L. gasseri 505 might enhance their immunomodulatory effects of fermented milk.

Studies on antioxidant activity of Hulled barley and Hulled barley PL6190

Ji Young Lee(이지영),Kyoung Hee Seo(서경희),Yong Chang Jang(장용창),Young Min Lee(이영민),Md Abul Hasnat(아블 하스낫),Beong Ou Lim(임병우) 한국약용작물학회 2015 한국약용작물학회 학술대회논문집 Vol.2015 No.1

오일팜 바이오매스의 자원화 연구 V

이지영(Ji-Young Lee),김철환(Chul-Hwan Kim),성용주(Yong Joo Sung),남혜경(Hye-Gyeong Nam),박형훈(Hyeong-Hun Park),권솔(Sol Kwon),박동훈(Dong-Hun Park),주수연(Su-Yeon Joo),임현택(Hyun-Tek Yim),이민석(Min-Seok Lee),김세빈(Se-Bin Kim) 한국펄프·종이공학회 2016 펄프.종이기술 Vol.48 No.2

Global warming and climate change have been caused by combustion of fossil fuels. The greenhouse gases contributed to the rise of temperature between 0.6℃ and 0.9℃ over the past century. Presently, fossil fuels account for about 88% of the commercial energy sources used. In developing countries, fossil fuels are a very attractive energy source because they are available and relatively inexpensive. The environmental problems with fossil fuels have been aggravating stress from already existing factors including acid deposition, urban air pollution, and climate change. In order to control greenhouse gas emissions, particularly CO2, fossil fuels must be replaced by eco-friendly fuels such as biomass. The use of renewable energy sources is becoming increasingly necessary. The biomass resources are the most common form of renewable energy. The conversion of biomass into energy can be achieved in a number of ways. The most common form of converted biomass is pellet fuels as biofuels made from compressed organic matter or biomass. Pellets from lignocellulosic biomass has compared to conventional fuels with a relatively low bulk and energy density and a low degree of homogeneity. Thermal pretreatment technology like torrefaction is applied to improve fuel efficiency of lignocellulosic biomass, i.e., less moisture and oxygen in the product, preferrable grinding properties, storage properties, etc.. During torrefacton, lignocelluosic biomass such as palm kernell shell (PKS) and empty fruit bunch (EFB) was roasted under an oxygen-depleted enviroment at temperature between 200 and 300℃. Low degree of thermal treatment led to the removal of moisture and low molecular volatile matters with low O/C and H/C elemental ratios. The mechanical characteristics of torrefied biomass have also been altered to a brittle and partly hydrophobic materials. Unfortunately, it was much harder to form pellets from torrefied PKS and EFB due to thermal degradation of lignin as a natural binder during torrefaction compared to non-torrefied ones. For easy pelletization of biomass with torrefaction, pellets from PKS and EFB were manufactured before torrefaction, and thereafter they were torrefied at different temperature. Even after torrefaction of pellets from PKS and EFB, their appearance was well preserved with better fuel efficiency than non-torrefied ones. The physical properties of the torrefied pellets largely depended on the torrefaction condition such as reaction time and reaction temperature. Temperature over 250℃ during torrefaction gave a significant impact on the fuel properties of the pellets. In particular, torrefied EFB pellets displayed much faster development of the fuel properties than did torrefied PKS pellets. During torrefaction, extensive carbonization with the increase of fixed carbons, the behavior of thermal degradation of torrefied biomass became significantly different according to the increase of torrefaction temperature. In conclusion, pelletization of PKS and EFB before torrefaction made it much easier to proceed with torrefaction of pellets from PKS and EFB, leading to excellent eco-friendly fuels.

대학생의 성별에 따른 건강관련 체력과 건강신념모형 구성요소와의 상관성

이지영(Lee, Ji-Young),최용철(Choi, Yong-Chul),한태용(Han, Tae-Yong),이한(Lee, Han) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.3

The purpose of this study was to investigate correlation between health related fitness and components of health Belief model(HBM) according to gender difference university students. A total of 157 students(male : 85, Female : 72) were invited in this study. We investigated questionnaires and measured obesity indices, blood pressue, resting heart-rate, and health related fitness. A total 22questions (susceptibility to disease: 5questions; severity of disease: 5questions; benefits of exercise: 7questions; barriers to exercise: 5questions) appeared to be suitable as measurement tool. As result, scores of susceptibility to disease and severity of disease were relatively low, especially in men was lower in university students. And health related fitness was related with components of HBM. In particular, muscular strength was found to have the greatest correlation with HBM components. In the analysis according to gender, muscular strength, muscular endurance, cardiorespiratory fitness were related with susceptibility to disease and benefits of exercise in female university students, and body composition and muscular strength were related with susceptibility to disease, benefits of exercise, and barriers to exercise. In conclusion, we suggest that health related fitness is related components of HBM, and improvement of health related fitness influence the change in health behavior by strengthening component of HBM.

3주간 고지대 훈련이 크로스컨트리 스키선수들의 유 · 무산소 운동수행력 및 회복능력에 미치는 영향

이지영(Lee, Ji-Young),한태용(Han, Tae-Yong),최용철(Choi, Yong-Chul) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.5

The purpose of this study was to investigate effects of 3 week-high altitude training on aerobic and anaerobic exercise performance and recovery capability in cross-country skier. The subjects in this study were 6 cross-country skier. We investigated the maximal oxygen uptake, anaerobic performance, and recovery capability before-and after 3 week-high altitude training. The period of high altitude training was 3weeks and the training time was 2-3hours/day. As results, VO₂max and VO₂average were significantly increased after 3 week-high altitude training compared with before 3week-high altitude training, and decreased at 2week after 3week-high altitude training. But anaerobic performance such as peak power, mean power, and fatigue index had not significant effects. Finally, recovery capability estimated recovery heart-rate was significantly increased 1week and 2week after 3week-high altitude training compared with before 3week-high altitude training. In conclusions, we suggest that high altitude training is required time of minimum 2~3 hours/day, and effects of high altitude training is decreased to level before high altitude training. Therefore, high altitude training program for promotion of exercise performance should be designed training time and period as well as effective period after high altitude training.

원료 및 건조에너지 절감을 위한 경질탄산칼슘의 백판지 공정 적용성 평가

이지영(Ji-Young Lee),김영훈(Young-Hun Kim),이세란(Se-Ran Lee),김철환(Chul-Hwan Kim,),성용주(Yong Joo Sung),임기백(Gi-Baek Lim),김선영(Sun-Young Kim),김준식(Jun-Sik Kim),박종혜(Jong-Hea Park) 한국펄프·종이공학회 2013 펄프.종이기술 Vol.45 No.6

청소년의 성별과 학년에 따른 학교 밖 쓰기 활동의 차이

이지영 ( Ji Yong Lee ) 국어교육학회 2013 國語敎育學硏究 Vol.47 No.-

본 연구를 통해 우리나라 중?고등학생들은 학교 안에서보다 학교 밖에서 더 활발한 쓰기 활동을 하고 있었으며, 인터넷 매체를 많이 사용하고 있음을 알 수 있었다. 쓰기 흥미도의 경우 과반수의 학생들이 학교 안 쓰기 활동이 재미 없다고 응답했으며, 성별 차이로는 남학생들이 여학생들보다 쓰기에 대한 흥미도가 더 낮은 것으로 파악되었다. 학교 밖에서 가장 많이 하고 있는 쓰기 유형이 인터넷 매체를 기반으로 한 쓰기라는 점은 쓰기 연구자와 교수자에게 학생들의 달라진 쓰기 상황과 목적, 과정에 대한 새로운 이해를 요구한다. 또한 남학생들은 여학생들보다 인터넷 카페에 글쓰기를 더 많이 수행함으로써 공통 관심사에 대한 정보 공유를 위한 쓰기를, 여학생들은 남학생들보다 일기 쓰기와 친구 블로그에 댓글 쓰기를 더 많이 수행함으로써 자신의 감정을 정리하는 쓰기와 관계 유지를 위한 쓰기를 많이 함을 알 수 있다. 또한 학교 밖에서 쓰기를 하는 이유에 대해 학년이 올라갈수록 시간 때우기의 비중이 줄어들고, 자기를 표현하기 위함의 비중이 커짐을 통해, 쓰기를 통해 자신의 정체성을 형성해 가는 청소년 문식성 실천의 특징을 알 수 있다. According to this survey results, middle and high school students are writing more active out of school than in of school and were more likely to use internet than print. Low level on writing interest in school hold a majoriy of the students and boys are less likely to like writing in school than girls. The fact that Internet is the most common tool of writing demands us to do new understanding on writing context, purpose and process. Unlike girl, boys are writting with the purpose of information sharing on Internet message boards. Unlike boy, girls keep a journal of daily events and write with the purpose of relational maintenance on friens`s web blog. The results that killing time has been decreasing and express themselves has been increasing with advancing years on reason of writing allow us know the distinct writing features of adolescents that forming and expressing self-identity through their writing.

농업부산물 크라프트펄프의 혼합에 따른 판지의 물성변화

이지영(Ji-Young Lee),임기백(Gi-Baek Lim),김선영(Sun-Young Kim),박종혜(Jong-Hye Park),김은혜(Eun-Hea Kim),성용주(Yong Joo Sung),허영준(Young-Jun Heo),김영훈(Young-Hun Kim),김연오(Youn-Ho Kim),이세란(Se-Ran Lee) 한국펄프·종이공학회 2014 펄프.종이기술 Vol.46 No.5

The cultivation of agricultural crops results in the generation of agricultural byproducts. Researchers have reported that these materials can be useful in a variety of applications. However, over 50% of them are currently discarded because of the lack of specific technologies in industrial applications. Therefore, effective and specific applications must be developed in order to manufacture high-quality materials using discarded lignocellulosic resources. In this study, we determined the possibility of using kraft pulp from major agricultural byproducts as a raw material for the manufacture of paperboard. Rice husks, peanut husks, and garlic stems were obtained and used to prepare many kinds of kraft pulps by controlling the active alkali, sulfidity, reaction time, and liquor ratio. After the production of these kraft pulps, handsheets were manufactured by mixing them with KOCC. After preconditioning, the physical properties and strengths of the handsheets were measured according to the TAPPI test methods. The shapes, lengths, and widths of the pulp fibers varied according to the type of agricultural byproduct and the kraft pulping conditions. Rice husk and garlic stem pulps manufactured under mild pulping conditions resulted in handsheets of higher bulk than other pulps. Garlic stem pulps manufactured under mild pulping conditions were stronger than rice husk pulps and peanut husk pulps.

3차원 블록 조립을 위한 지능형 추론 시스템 설계

이지영(Ji Young Lee),황석근(Seok Geun Hwang),이원용(Won Yong Lee),노상욱(Sanguk Noh) 한국정보과학회 2014 한국정보과학회 학술발표논문집 Vol.2014 No.12