http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
혈소판 농축 혈장을 이용한 골 이식술이 골연하낭의 치료에 미치는 효과
허윤준,임성빈,정진형,Hur, Yoon-Jun,Lim, Sung-Bin,Chung, Chin-Hyung 대한치주과학회 2001 Journal of Periodontal & Implant Science Vol.31 No.2
Bone graft and guided tissue regeneration have been used for the regeneration of periodontal tissue which is the ultimate goal of periodontal treatment. Recently, it was reported that some kind of growth factors were used for regeneration. Platelet rich plasma was researched that it could increase the density of bone and the rate of bone regeneration. For that, 25 patients which have pocket depth more than 5mm at any of 6 surfaces, of healthy patient without any systemic disease were treated. $Biogran^{?}$ Were grafted into 14 infrabony pockets as controls, and $Biogran^{(R)}$ with PRP were inserted into 31 infrabony pockets. And then, follwing evaluations were made at the end of 1, 3 and 6 months. 1. There was no statistical difference between control and experimental group in pocket depth, gingival recession, minimum probing attachment level and maximum probing attachment level at preoperation(p>0.05). 2. Decrease in probing pocket depth were reduced to 3.32mm for experimental group and 2.71mm for control group. The decrease was evident at the end of 1 month, they were 2.97mm and 2.29mm,and it was statistically difference(p<0.05). 3. Gingival recession was increased by 0.55mm in experimental group and 0.50mm in control group, it was evident at the end of 1 month. And it was statistically difference(p<0.05). 4. Minimum probing attachment level was increased by 0.35mm in experimental group and 0.36mm in control group, it was statistically difference(p<0.05). 5. Maximum probing attachment level was decreased by 3.19mm in experimental group and 2.93mm in control group, it was statistically difference(p<0.05). 6. There was no statistical difference between control and experimental group in pocket depth, gingival recession, minimum probing attachment level and maximum probing attachment level(p>0.05). There was statistical difference in decrease of pocket depth between pre-operation and 1 month after post-operation(p<0.05). In conclusion, bone graft using $Biogran^{?}$ and bone graft using $Biogran^{?}$ With platelet rich plasma were both effective in treatment of infrabony pocket, bone graft using $Biogran^{?}$ With platelet rich plasma was more effective in early soft tissue healing.
허윤준(yoon-joon hur),정하민(Ha-min Jung),오하나(Ha-na Oh),최승혜(Seung-hye Choi),이상운(Sang-un Lee) 한국방송·미디어공학회 2023 한국방송공학회 학술발표대회 논문집 Vol.2023 No.11
COVID-19 의 영향으로 E-스포츠의 수요가 늘고 있다. 최근에는 2022 항저우 아시안게임에서 정식종목으로 채택되었고, 대학교 행사나 지역사회에서도 E-스포츠 대회를 어렵지 않게 접할 수 있다. 본 논문에서는 NDI 을 이용해 E-스포츠 중계 시스템을 제안한다. 제안한 시스템은 누구나 간단히 이용하고 응용할 수 있게 설계한다.
이원홍,최청송,허윤준 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.2
고성능의 압력 트랜스듀서를 이용하여 교반탱크 내에서 발생되는 압력요동을 운전조건의 변화에 따라 측정하였다. 이 방법을 사용하여 범람과 부하상태의 전이영역을 쉽게 구분할 수 있었으며 타 연구자들의 연구결과와 비교분석하여 신뢰도를 확인할 수 있었다. 물질전달계수와 교반기에 의한 에너지소비를 측정하여 공동의 구조 변화와 비교해 본 결과 교반기의 날개뒤에 형성되는 공동의 형태는 물질전달과 교반기의 에너지소비에 큰 영향을 미친다는 것을 알 수 있었다. 압력요동의 스펙트럼분석으로부터 3-3구조를 갖는 공동의 발전정도가 운전조건에 따라 변화됨을 알 수 있었다. 이러한 결과들로부터 기-액 교반탱크에서 물질전달과 에너지소비면에 있어서 최적의 운전조건을 쉽게 얻을 수 있었다. The transition conditions between flooding and loading were easily found using a miniature hydrophone which detects the pressure differences in radial outflow between flooding and loading. The reliability of a proposed method was confirmed by comparing the data with an early published correlation equation. The mass transfer coefficients and the power consumptions of impeller depended on the cavity structures formed behind the impeller blades. From the spectrum analysis of pressure fluctuation, it was realised that the degree of progress of 3-3 structured cavity varied with the change of operating conditions in the 3-3 structured cavity region. In view of gas-liquid mass transfer and power consumptions, the optimal operating condition in an agitated reactor could be found by the spectrum analysis of the pressure fluctuations.