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NAOKI KISHI,SHINYA KATO,TAKESHI SAITO,JUNKI HAYASHI,DAIKI ITO,YASUHIKO HAYASHI,TETSUO SOGA,TAKASHI JIMBO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2011 NANO Vol.6 No.6
We report the exploration of PEDOT:PSS/SWCNTs as a material for the hole transport layer of polymer solar cells. The electrical conductivity of PEDOT:PSS/SWCNT film was enhanced as compared to that of PEDOT:PSS because of the carrier transport pass through SWCNTs. Moreover, we have fabricated polymer solar cells with the hole transport layer of PEDOT:PSS/SWCNTs and demonstrated the improvement of a fill factor and short circuit current density in the polymer solar cells with the hole transport layer of PEDOT:PSS/SWCNT as compared to the PEDOT:PSS.
Accurate and Easy Measurement of Sliding Distance of Intramedullary Nail in Trochanteric Fracture
Nobuaki Chinzei,Takafumi Hiranaka,Takahiro Niikura,Takaaki Fujishiro,Shinya Hayashi,Noriyuki Kanzaki,Shingo Hashimoto,Yoshitada Sakai,Ryosuke Kuroda,Masahiro Kurosaka 대한정형외과학회 2015 Clinics in Orthopedic Surgery Vol.7 No.2
In daily clinical practice, it is essential to properly evaluate the postoperative sliding distance of various femoral head fixation devices (HFD) for trochanteric fractures. Although it is necessary to develop an accurate and reproducible method that is unaffected by inconsistent postoperative limb position on radiography, few studies have examined which method is optimal. Therefore, the purpose of this study is to prospectively compare the accuracy and reproducibility of our four original methods in the measurement of sliding distance of the HFD. Methods: Radiographs of plastic simulated bone implanted with Japanese proximal femoral nail antirotation were taken in five limb postures: neutral, flexion, minute internal rotation, greater external rotation, and flexion with external rotation. Orthopedic surgeons performed five measurements of the sliding distance of the HFD in each of the flowing four methods: nail axis reference (NAR), modified NAR, inner edge reference, and nail tip reference. We also assessed two clinical cases by using these methods and evaluated the intraclass correlation coefficients. Results: The measured values were consistent in the NAR method regardless of limb posture, with an even smaller error when using the modified NAR method. The standard deviation (SD) was high in the nail tip reference method and extremely low in the modified NAR method. In the two clinical cases, the SD was the lowest in the modified NAR method, similar to the results using plastic simulated bone. The intraclass correlation coefficients showed the highest value in the modified NAR method. Conclusions: We conclude that the modified NAR method should be the most recommended based on its accuracy, reproducibility, and usefulness.