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SHIN, SANGMIN,CHO, CHOONG,KOO, JUNE,KIM, SUK,CHO, YOUNG-JIN,PARK, SUNG-HO,LEE, JUNG,PARK, YOUNGSOO,LEE, JUNE-KEY,JO, JI,KIM, DONG,NOH, TAE,YOON, JONG-GUL,KANG, BO Taylor Francis 2004 Integrated ferroelectrics Vol.64 No.1
<P>We compared retention characteristics of Pb(Zr,Ti)O 3 (PZT) capacitors with either noble metal electrodes or their oxide compounds. Very thin PZT films with thickness below 100 nm were deposited by metal-organic chemical vapor deposition (MOCVD) on Ir bottom electrodes, and Pt, Ir, IrO 2 were covered as top electrodes thereon. The capacitors with IrO 2 top electrodes had the better opposite-state retention performance than those with Pt, Ir top electrodes. Inserting IrO 2 top electrode affected the alleviation of the size effect more in the aged capacitors than in the virgin capacitors. In addition, we also discuss problems of using IrO 2 as a bottom electrode in our PZT capacitors.</P>
( Gul Jung ),( Bum Soo Kim ),( Kyung Bae Shin ),( Ki Bum Park ),( Sae Yeon Kim ),( Sun Ok Song ) 대한마취과학회 2011 Korean Journal of Anesthesiology Vol.60 No.3
Background: This study was performed to find the optimal volume of local anesthetics needed for a successful ultrasound-guided stellate ganglion block (SGB) to treat head and neck pathology. Methods: Fifteen female and fourteen male sensory-neural hearing loss patients received 4 times SGBs with 0.2% ropivacaine in volumes of 6, 4, 3 and 2 ml at 1 to 3 day intervals. Using the transverse short-axis view of the neck that showed Chassaignac`s tubercle at the C6 level, a 25-gauge, and 4 cm needle was inserted via the lateral paracarotid approach with out-of-plane targeting between the prevertebral fascia and the ventral surface of longus colli muscle (subfascial injection). A successful block was confirmed with the onset of ptosis (Horner`s syndrome). Results: There were no significant statistical differences between the presence of Horner`s syndrome and the volume of local anesthetics given. However, Horner`s syndrome was present in all trials for the 4 ml and 6 ml groups. Six (20.7%) and three out (10.4%) of twenty-nine trials in the 2 ml and 3 ml groups, respectively, failed to elicit Horner`s syndrome. The duration of action was significantly different in the 2 ml group compared to that of the 6 ml group, but there was no significant difference between the other groups, including the 4 ml vs. 6 ml groups. The side effects were not different between the groups. Conclusions: This data suggests that the optimal volume of 0.2% ropivacaine for ultrasound-guided SGB to treat the head and neck pathology in daily practice is 4 ml. (Korean J Anesthesiol 2011; 60: 179-184)
Poster Session : Sophorae Radix reduces autoimmune response in NZB/w F1 Lupus mice model
( Eun Jung Ko ),( Young Seop Lee ),( Nam Hee Park ),( Bang Gul Oh ),( Hye Jeoung Kim ),( N. Benjamin Tamilselvan ),( Dong Woo Kim ),( Min Kyu Shin ),( Moo Chang Hong ),( Hyun Su Bae ) 한국생화학분자생물학회 (구 한국생화학회) 2006 생화학분자생물학회 춘계학술발표논문집 Vol.2006 No.-
신태형(Shin Tae-Hyoung),최정열(Choi Jung-Youl),엄기영(Eum Ki-Young),박용걸(Park Yong-Gul) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
A trial run of locally-developed tilting train has been in process on Chungbuk line since the test vehicle was first produced. For the system stabilization, interface verification among the systems including track, structure, catenary and signaling system, not to mention the rolling stock, is very crucial. In the area of wayside structure, the stability of track structure and train run shall be evaluated through the review of impact by increased speed by developed train on track structure. The study thus was intended to evaluate the impact on track while a tilting train is running the conventional line(ballast track), which is vulnerable to accelerated train speed. The evaluation of tilting train test running the part of Honam line was conducted to identify the impact on existing track performance by tilting train. To identify the performance of each part of track components while tilting train and high speed train were running the existing line, wheel load, rail bending stress, vertical displacement of rail and sleeper were compared so as to evaluate the expected impact by tilting train for improving the train speed.
신태형(Shin Tae-Hyoung),최정열(Choi Jung-Youl),엄기영(Eum Ki-Young),박용걸(Park Yong-Gul) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
A trial run of locally-developed tilting train has been in process on Chungbuk line since the test vehicle was first produced. For the system stabilization, interface verification among the systems including track, structure, catenary and signaling system, not to mention the rolling stock, is very crucial. Therefore, in this study, the dynamic rail force of the tilting (Hanvit 200), high-speed (KTX) and general (Mugunghwa) vehicle caused by driving in transition curve track was measured. And, it compared the tilting response with the other by using the measured wheel load data in transition curve track, and then evaluated probability the range of wheel load fluctuation for the variable dynamic vertical and lateral wheel load. As a result, a range of wheel load by occured a change of cant from the high-speed and general vehicle which had fixed bogie structure was distributed throughout small deviation (Δ8~13kN). Otherwise, in case of the tilting train which was consisted of the pendulum bogie structure was distributed wide range about large deviation (Δ25~28kN) by changed of cant.