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소아에서 Fogarty 카테터를 이용한 일측폐 환기 마취 경험
유수봉,강효석,임지훈,김두식,류시정 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3
Thoracic surgery may be greatly facilitated by causing selective atelectasis of the lung being operated on (one-lung ventilation anesthesia). But the tube used for one-lung ventilation is greater outer diameter than conventional endotracheal tube when compare to each other with same inner diameter, so in some young children it is impossible to one-lung ventilation using double lumen tube or bronchial blocker tube because of narrow vocal cord. We performed one lung ventilation anesthesia using conventional endotracheal tube and Fogarty catheter as a bronchial blocker in 11-year old women who received lung biopsy surgery and left lower lobectomy.
Low phonon conductivity of layered BiCuOS, BiCuOSe, and BiCuOTe from first principles
Ji, Hyo Seok,Togo, Atsushi,Kaviany, Massoud,Tanaka, Isao,Shim, Ji Hoon American Physical Society 2016 Physical Review B Vol.94 No.11
<P>Combining the effect of layer mixing, mass mismatch, and intrinsic defects, we have investigated the origin of very low phonon conductivity k(p) in thermoelectric (TE) BiCuOQ (Q: S, Se, Te) compounds. Based on the first-principles anharmonic, lattice dynamics calculations, we use the single-mode relaxation time approximation of the linearized phonon Boltzmann equation, which shows good agreement with experiments. Here, we found that the most important parameter for low k(p) is the interlayer interaction between the BiO and CuQ layers. By analyzing the phonon linewidth distribution, which indicates the phonon scattering rate, we propose that the interlayer interactions play a critical role on suppressing k(p), i.e., the heterolayered crystal controls these interlayer interactions, achieving low k(p) and optimal TE properties.</P>
Variation of saponin contents in Korean Soybean Landraces
Ji-Seok Lee,Xiang-Min Piao,Hyo-Jae Lee,Yeong-Eun Yoo,Sun-Lim Kim,Hong-Sig Kim 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07
This study investigated saponin contents according to collection area, seed size and seed color in 293 Korean soybean landraces. Results showed that total group A was 149.8 to 1279.0㎍/g with an average of 484.9㎍/g while total group B saponin content was 2160.1 to 7868㎍/g with an average of 3670㎍/g. Total groups A and B saponin content were ranging from 2502.7 to 8763.9㎍/g with an average of 4154.8㎍/g. The landraces with high group B saponin content were IT226841, IT226761, IT226844 and IT226826. The landraces with low group A saponin content were IT228580, IT228319, IT228308 and IT226841. According to collection areas, the highest amount of saponin content was observed in the landraces collected from North Korea. High total of saponin content was showed by seeds from Gyeonggi-do, followed by Chungcheongbuk-do, Gangwon-do, Gyongsangbuk-do, Chungcheongnam-do Jeollabuk-do and Jeollanam-do. According to seed size, small seeds have the higest saponin contentfollowed by the medium and large size of seeds. For seed color, there was no significant difference in saponin content. The total of saponin content was postively correlated with group A saponin, group B saponin and total of saponin cntent. Among each components, group A saponin showed postive correlations with total of saponin and group B saponin content.