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- 저자 : Shih-Peng Wen (검색결과 4 건)
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Mei-Chen Lin,Ching-Wen Lou,Jan-Yi Lin,Ting An Lin,Shih-Peng Wen,Jia-Horng Lin 한국섬유공학회 2019 Fibers and polymers Vol.20 No.2
This study combines and twists 75D polyester (PET) multi-filaments and polylactic acid (PLA) multi-filaments with twist coefficients of 2, 3, 4, 5, and 6 to form 150D PET/PLA plied yarns. The 0.08-mm-diameter stainless steel (SS) fibers are made into SS braids with a 60-tooth braid gear and a take-up gear with 60, 70, 80, 90, or 100 teeth. PET/PLA plied yarn and SS braids are then combined and electrochemically treated with an electric current of 100, 200, 300, 400, or 500 mA at 60 ℃ for 24 hours, forming the PET/PLA/SS composite bone scaffolds. PET/PLA/SS composite bone scaffolds are observed by scanning electron microscope (SEM) and energy dispersive spectroscope (EDS), and tested for weight increase rate and biocompatibility. The experiment results show that the optimal twist coefficient for PET/PLA plied yarn is 4 and the optimal tooth number on the take-up gear for SS braids is 80. SEM observation result shows that hydroxyapatite (HA) deposits on the surface of PET/PLA/SS composite bone scaffolds and attaches to the PET/PLA plied yarns. Finally, regardless of electric currents, all PET/PLA/SS composite bone scaffolds possess good biocompatibility.
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Fei Sun,Hai-Tao Ren,Shih-Yu Huang,Ting-Ting Li,Hao-Kai Peng,Qi Lin,Ching-Wen Lou,Jia-Horng Lin 한국섬유공학회 2020 Fibers and polymers Vol.21 No.7
In this study, electrospun polyvinylidene fluoride (PVDF)-based nanofibrous membranes embedding TiO2 wereprepared and used for photocatalytic degradation and oil/water separation. The nanofibrous membranes were characterizedby scanning electron microscopy (SEM), transmission electronic microscope (TEM), X-ray diffraction (XRD), Fouriertransform infrared spectroscopy (FTIR) spectroscopy, thermal performance analysis, and oil/water separation analysis. Andthe degradation of rhodamine B dye was also investigated. Results showed that the fiber diameter and thermal stability of themembranes decreased with the increasing of TiO2. Meanwhile, the fiber surface roughness and specific surface areaincreased. The analysis of TEM, XRD and FTIR indicated that TiO2 existed in the PVDF membranes. When the TiO2 contentwas 12 %, the fiber diameter of the membranes was about 110 nm, and the photocatalytic degradation of rhodamine B dyeefficiency was up to 97 %. The reaction rate constant was 0.02057 min-1. At 0.01 MPa vacuum, oil separated from watereffectively, which proves that separation can be easily conducted with a low energy cost. Thus, the prepared membranes havea very high application prospect in the purification of reclaimed water and separation of oil and water.
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( Chen-hua Liu ),( Chi-yi Chen ),( Wei-wen Su ),( Chun-jen Liu ),( Ching-chu Lo ),( Ke-jhang Huang ),( Jyh-jou Chen ),( Kuo-chih Tseng ),( Chi-yang Chang ),( Cheng-yuan Peng ),( Yu-lueng Shih ),( Chia 대한간학회 2021 Clinical and Molecular Hepatology(대한간학회지) Vol.27 No.4
Background/Aims: Real-world studies assessing the effectiveness and safety of sofosbuvir/velpatasvir (SOF/VEL) plus ribavirin (RBV) for Child-Pugh B/C hepatitis C virus (HCV)-related cirrhosis are limited. Methods: We included 107 patients with Child-Pugh B/C HCV-related cirrhosis receiving SOF/VEL plus RBV for 12 weeks in Taiwan. The sustained virologic response rates at off-treatment week 12 (SVR<sub>12</sub>) for the evaluable population (EP), modified EP, and per-protocol population (PP) were assessed. The safety profiles were reported. Results: The SVR<sub>12</sub> rates in the EP, modified EP and PP were 89.7% (95% confidence interval [CI], 82.5-94.2%), 94.1% (95% CI, 87.8-97.3%), and 100% (95% CI, 96.2-100%). Number of patients who failed to achieve SVR<sub>12</sub> were attributed to virologic failures. The SVR<sub>12</sub> rates were comparable regardless of patient characteristics. One patient discontinued treatment because of adverse events (AEs). Twenty-four patients had serious AEs and six died, but none were related to SOF/VEL or RBV. Among the 96 patients achieving SVR<sub>12</sub>, 84.4% and 64.6% had improved Child-Pugh and model for endstage liver disease (MELD) scores. Multivariate analysis revealed that a baseline MELD score ≥15 was associated with an improved MELD score of ≥3 (odds ratio, 4.13; 95% CI, 1.16-14.71; P=0.02). Patients with chronic kidney disease (CKD) stage 1 had more significant estimated glomerular filtration rate declines than patients with CKD stage 2 (-0.42 mL/min/1.73 ㎡/month; P=0.01) or stage 3 (-0.56 mL/min/1.73 ㎡/month; P<0.001). Conclusions: SOF/VEL plus RBV for 12 weeks is efficacious and well-tolerated for Child-Pugh B/C HCV-related cirrhosis. (Clin Mol Hepatol 2021;27:575-588)
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Jau-Ji Jou,Tien-Tsorng Shih,Chih-Chen Peng,Hao-Wen Hsu,Xuan-Yi Ye 대한전자공학회 2021 Journal of semiconductor technology and science Vol.21 No.5
In this study, an inductorless broadband transimpedance amplifier (TIA) is implemented using TSMC 90-nm complementary metal-oxide-semiconductor (CMOS) technology. A regulated cascode circuit with low input impedance is used as the input stage of the TIA. The core amplifier is a fully differential amplifier with active feedback. The output stage of the TIA is an equalizer based on a differential amplifier with a source degenerated resistor and capacitor. The TIA has a bandwidth of 24.8 GHz and good linearity. In the TIA chip testing, clear 25-Gb/s nonreturn to zero and 50-Gb/s four-level pulse amplitude modulation eye diagrams can be observed.
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