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Soo-Hyun Lim,Hae-Rim Park,Dong-Gil Kim,DoKyoung Lee,Gyoungju Nah,Do-Soon Kim 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
More than 300 Miscanthus accessions as a potential bioenergy crop were collected in Korea and their morphological traits were investigated at various growth stages. Among morphological traits, stem growth habit, the presence of awn in spikelet, and autumn new shoot are the most important key traits enabling to cluster Miscanthus accessions into M. sinensis and M. sacchariflorus groups. Miscanthus sinensis has bunch stem growth habit and awn in spikelet, and produces autumn new shoot, while M. sacchariflorus has scattering stem growth habit with no awn in spikelet and does not produce autumn new shoot. Interestingly, we found several Miscanthus accessions showing intermediate morphological traits. 7 M. sinensis accessions showed morphological traits similar to M. sacchariflorus and 17 M. sacchariflorus accessions showed morphological traits similar to M. sinensis. Flow cytometry and chromosome counting finally revealed 5 Miscanthus hybrids, suggesting that they are resulted from natural hybridization between M. sinensis and M. sacchariflorus. Therefore, these Miscanthus hybrids can be used to understand genetic recombination between these two Miscanthus species and our understanding may support future efforts for breeding new Miscanthus variety with high biomass productivity and environmental adaptability.
Freestanding GaN 기판의 Ga-polar 면에 기계적 연마 방법을 적용한 Bow 제어 및 그 특성 연구
김진원,손호기,임태영,이미재,김진호,전대우,황종희,정정영,오해곤,김진훈,최영준,이혜용,윤대호,Gim, Jinwon,Son, Hoki,Lim, Tae-Young,Lee, Mijai,Kim, Jin-Ho,Jeon, Dae-Woo,Hwang, Jonghee,Jung, Jung-Young,Oh, Hae-Kon,Kim, Jin-Hun,Choi, YoungJun,Le 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.12
In this paper, we have studied the effect of mechanical polishing to Ga-polar face for reducing the wafer bowing and strain in free-standing GaN. After the mechanical polishing to Ga-polar face, the bowing of the free-standing GaN substrate significantly decreased with increasing the size of diamond slurry, and eventually changed the bowing direction from concave to convex. Furthermore, the full width at half maximum (FWHM) of high-resolution X-ray diffraction (HR-XRD) were decreased, especially the FWHM of (1 0 2) reflection for $1.0{\mu}m$ size of diamond slurry was significantly decreased from 630 to 203 arcsec. In the case, we confirmed that the compressive strain in Ga-polar face was fully released by Raman measurement.
Experience with Ledipasvir/Sofosbuvir-Based Treatment for the Treatment of HCV Genotype 1a in Korea
( Chan Ran You ),( Sang Wook Choi ),( Sun Hong Yoo ),( Jung Hyun Kwon ),( Soon Woo Nam ),( Se Hyun Cho ),( Joon-Yeol Han ),( Do Seon Song ),( U Im Chang ),( Jin Mo Yang ),( Sung Won Lee ),( Hae Lim Le 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1
Aims: In this multicenter retrospective cohort study, we aimed to evaluate the effectiveness of IFN-free direct acting anti-viral agents (DAA) for patients with HCV genotype 1a in a real life setting in Korea. Methods: We analyzed clinical data of all consecutive DAA-treated patients for chronic HCV genotype 1a infection from eight clinical centers in Korea. Between May 2016 to April 2017, 35 patients were included in this study. The primary efficacy endpoint was end of treatment response (ETOR) and sustained virological response 12 weeks (SVR12). Adverse events (AEs) and laboratory data were also collected for analysis. Results: A total of 35 patients with genotype 1a HCV infection, 8 patients (22.9%) had compensated liver cirrhosis and 14 patients (40%) were treatment-experienced. Ledipasvir/sofosbuvir (LDV/SOF) with ribavirin were administered to six of seven treatment-experienced patients with cirrhosis. Thirteen patients were over 65 years old (37.1%) and female patients were dominant (65.7%, 23/35 patients). The Child-Pugh scores of all patients were 5 or 6. The rate of SVR12 was 94.7% (18/19 patients) and the rate of ETOR was 96.6% (28/29 patients). SVR12 and ETOR were obtained in all patients completed treatment for 12 weeks. Five of 33 patients (15.2%) had detectable HCV RNA at week 4 of therapy, but all of them achieved SVR12. LDV/SOF without ribavirin was tolerated well. The dose of ribavirin was reduced in two patients because they complained fatigue and general weakness after the treatment of LDV/SOF with ribavirin. Conclusions: In patients with HCV genotype 1a infection, LDV/SOF based regimen was very effective and well tolerated.