http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
실험적 성대마비 개에서 자가이개연골의 성대근육내 주입 후 조직학적 변화 : 2년 후 결과
이병주,이진춘,전경명,고의경,노환중,이창훈,왕수건,Lee Byung-Joo,Lee Jin-Choon,Chon Kyong-Myong,Goh Eui-Kyung,Roh Hwan-Jung,Lee Chang-Hun,Wang Soo-Geun 대한후두음성언어의학회 2005 대한후두음성언어의학회지 Vol.16 No.2
Background and Objective : Vocal fold augmentation by injectable material under direct visual control is an easy and simple operation. However, when autologous fat or bovine collagen is used, the resoiption creates a problem. And autologous fascia is debating about absorption now days. We previously reported on the one year results of injected autologous auricular cartilage for volumetric augmentation in paralyzed canine vocal cord. This study evaluates the long-term histomorphologic results of injected autologous auricular cartilage for the augmentation of the paralyzed canine vocal fold at two year. Material and Methods . A prospective trial of autologous cartilage augmentation of vocal cord in animal model. Three dogs were operated upon. A piece of auricular cartilage was harvested from the ear and minced into tiny chips with a scalpel. Fat was harvested from inguinal area and minced with a scalpel. The minced cartilage and fat-paste (0.2ml) was injected using a pressure syringe into the paralyzed thyroarytenoid muscle using direct laryngoscopy. Three animals were sacrificed at 2 years. Each subject underwent laryngectomy and serial coronal sections of paraffin blocks from the posterior vocal fold were made. Results There was no significant complication perioperatively and during follow-up. The injected cartilage which appeared to have lost viability existed in the vocalis muscles until 24 months. Fibrotic change was exhibited in the surrounding injected cartilage. Conclusion : The autologous auricular cartilage graft is well tolerated and may be very effective material for volumetric augmentation on paralyzed vocal cord.
소아의 단안 고도 근시성 부등시 눈에서 콘택트렌즈 착용과 약시 치료
이병주,김정훈,유영석,Byung Joo Lee,Jeong Hun Kim,Young Suk Yu 대한안과학회 2010 대한안과학회지 Vol.51 No.1
Purpose: To report the clinical outcome of children with unilateral high myopic anisometropic amblyopia who were treated with contact lenses (CL). Methods: Patients who had myopic anisometropia greater than -7 diopters and was treated with contact lenses combined with occlusion therapy during the period between 1998 and 2007 were retrospectively reviewed. Twenty-seven patients who were followed up for more than 1 year after treatment were included in the study. Initial and final best corrected visual acuities (BCVA) were compared and factors which influence the visual outcome were analyzed. Results: A total of 10 out of 27 patients (37%) acquired visual improvement of more than 2 lines. At the final examination, 6 patients (22.2%) had BCVA better than logMAR 0.3 and 10 patients (37.0%) had BCVA better than logMAR 0.7. Medullated nerve fiber and strabismus were the most commonly associated ocular pathologies among the patients. Patients without strabismus or medullated nerve fiber acquired greater visual improvement than patients with these comorbidities. Patients with lower initial refractive error (spherical equivalent) in the amblyopic eye acquired a better final vision. Poor compliance to CL wearing or occlusion therapy adversely affected the final vision. Conclusions: In the present study of children with unilateral severe myopic anisometropic amblyopia treated with CL combined with occlusion therapy, a third of the patients acquired visual improvement of more than 2 lines. The absence of medullated nerve fiber or strabismus was determined to be a good prognostic factor. J Korean Ophthalmol Soc 2010;51(1):88-94
열화학증기증착법을 이용한 그래핀의 합성 및 투과전자현미경 관찰용 그리드 멤브레인으로의 응용
이병주,정구환,Lee, Byeong-Joo,Jeong, Goo-Hwan 한국재료학회 2012 한국재료학회지 Vol.22 No.3
We present a method of graphene synthesis with high thickness uniformity using the thermal chemical vapor deposition (TCVD) technique; we demonstrate its application to a grid supporting membrane using transmission electron microscope (TEM) observation, particularly for nanomaterials that have smaller dimensions than the pitch of commercial grid mesh. Graphene was synthesized on electron-beam-evaporated Ni catalytic thin films. Methane and hydrogen gases were used as carbon feedstock and dilution gas, respectively. The effects of synthesis temperature and flow rate of feedstock on graphene structures have been investigated. The most effective condition for large area growth synthesis and high thickness uniformity was found to be $1000^{\circ}C$ and 5 sccm of methane. Among the various applications of the synthesized graphenes, their use as a supporting membrane of a TEM grid has been demonstrated; such a grid is useful for high resolution TEM imaging of nanoscale materials because it preserves the same focal plane over the whole grid mesh. After the graphene synthesis, we were able successfully to transfer the graphenes from the Ni substrates to the TEM grid without a polymeric mediator, so that we were able to preserve the clean surface of the as-synthesized graphene. Then, a drop of carbon nanotube (CNT) suspension was deposited onto the graphene-covered TEM grid. Finally, we performed high resolution TEM observation and obtained clear image of the carbon nanotubes, which were deposited on the graphene supporting membrane.
이병주,최재천,최영진,배덕효,Lee, Byong-Ju,Choi, Jae-Cheon,Choi, Young-Jean,Bae, Deg-Hyo 한국수자원학회 2012 한국수자원학회논문집 Vol.45 No.6
본 연구는 AWS 관측강우정보를 이용하여 실시간 유량예측을 수행할 경우 적용가능한 예측선행시간 및 정확도를 평가하고자 하는데 그 목적이 있다. 이를 위해 남한강 상류유역을 대상유역으로 선정하였으며 2006~2009 홍수기간에 대해 SURF 모형을 구축하였다. 관측유량 자료동화 수행 유무에 따른 모의유량은 관측유량을 잘 모의하며 유효성지수를 이용하여 자료동화 효과를 분석한 결과에서 충주댐 32.08%, 달천 51.53%, 횡성 39.70%, 여주 18.23%가 개선된 것으로 나타났다. 첨두유량 발생시간 이전 가상의 현재시점까지의 AWS 관측강우정보를 이용하여 유량예측 적용성을 평가한 결과 허용오차 20% 범위 내에서 첨두유량은 충주 11시간, 달천 2시간, 횡성 3시간, 여주 5시간, 유출용적은 충주 13시간, 달천 2시간, 횡성 4시간, 여주 9시간 이내에서 예측이 가능한 것으로 나타났다. 따라서 유역의 지체효과로 인해 관측강우만을 이용하여 적정 예측시간에 대해서 실시간 첨두유량 예측이 가능할 것으로 판단된다. The objective of this study is to evaluate the valid forecast lead time and the accuracy when AWS observed rainfall data are used for real-time river flow forecast. For this, Namhan river basin is selected as study area and SURF model is constructed during flood seasons in 2006~2009. The simulated flow with and without the assimilation of the observed flow data are well fitted. Effectiveness index (EI) is used to evaluate amount of improvement for the assimilation. EI at Chungju, Dalcheon, Hoengsung and Yeoju sites as evaluation points show 32.08%, 51.53%, 39.70% and 18.23% improved, respectively. In the results of the forecasted values using the limited observed rainfall data in each forecast time before peak flow occur, the peak flow under the 20% tolerance range of relative error at Chungju, Dalcheon, Hoengsung and Yeoju sites can be simulated in forecast time-11h, 2h, 3h and 5h and the flow volume in the same condition at those sites can be simulated in forecast time-13h, 2h, 4h and 9h, respectively. From this results, observed rainfall data can be used for real-time peak flow forecast because of basin lag time.