http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Lulu Lyu (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
-
Lyu, Lulu,Chai, Hua,Seong, Kwang-dong,Lee, Chaedong,Kang, Jeongmin,Zhang, Wang,Piao, Yuanzhe Elsevier 2018 ELECTROCHIMICA ACTA Vol.291 No.-
<P><B>Abstract</B></P> <P>Carbonaceous materials derived from a variety of cheap and sustainable biomass have shown great potential as conductive substrates for the coating of pseudocapacitive materials. In this study, yeast-derived N-doped carbon microsphere/polyaniline (YC/PANI) composites are synthesized by an <I>in situ</I> polymerization approach, using yeasts as the carbon source and structural template. The self-templated hollow YC with good conductivity has many active sites for anchoring PANI, and alleviates the structure destruction caused by the redox reaction of PANI. Accordingly, the YC/polyaniline composite as a supercapacitor electrode exhibits a high specific capacitance (500 F g<SUP>−1</SUP> at a current density of 1 A g<SUP>−1</SUP>) and good rate capability in a three-electrode system. Additionally, the symmetric supercapacitor of the YC/polyaniline composite delivers a high capacitance (100 F g<SUP>−1</SUP> at 1 A g<SUP>−1</SUP>) and remarkable cycle life (95.4% of the initial capacitance maintenance after 5000 cycles). The uniform coating of PANI nanowires and robust structure stability of composites are responsible for excellent electrochemical properties.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Yeast-derived carbon microsphere/polyaniline composites are synthesized as electrode materials for supercapacitors. </LI> <LI> The optimized electrode exhibits a high specific capacitance and a favorable rate capability. </LI> <LI> The hollow and robust microspherical architecture of the composite ensures the long-term cycling stability. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
-
Peng Xu,Lulu Lyu,Haitao Ge,Muhammad Umair Sami,Panpan Liu,Chunfeng Hu,Kai Xu 대한영상의학회 2019 Korean Journal of Radiology Vol.20 No.5
Objective: To assess segmental liver stiffness (LS) with MRI before and after endovascular intervention in patients with Budd-Chiari syndrome (BCS). Materials and Methods: Twenty-three patients (13 males and 10 females; mean age, 42.6 ± 12.6 years; age range, 31–56 years) with BCS as a primary liver disease were recruited for this study. Two consecutive magnetic resonance elastography (MRE) examinations were performed before the endovascular treatment. Fifteen patients who underwent endovascular intervention treatment also had follow-up MRE scans within three days after the procedure. LS was measured in three liver segments: the right posterior, right anterior, and left medial segments. Inter-reader and inter-exam repeatability were analyzed with intraclass correlation coefficients (ICCs) and Bland-Altman analysis. Segmental LS and clinical characteristics before and after the intervention were also compared. Results: Within three days of the endovascular intervention, all three segmental LS values decreased: LS of the right posterior segment = 7.23 ± 0.88 kPa (before) vs. 4.94 ± 0.84 kPa (after), LS of the right anterior segment = 7.30 ± 1.06 kPa (before) vs. 4.77 ± 0.85 kPa (after), and LS of the left medial segment = 7.22 ± 0.87 kPa (before) vs. 4.87 ± 0.72 kPa (after) (all p = 0.001). There was a significant correlation between LS changes and venous pressure gradient changes before and after treatments (r = 0.651, p = 0.009). The clinical manifestations of all 15 patients significantly improved after therapy. The MRE repeatability was excellent, with insignificant variations (inter-reader, ICC = 0.839–0.943: inter-examination, ICC = 0.765–0.869). Bland–Altman analysis confirmed excellent agreement (limits of agreement, 13.4–19.4%). Conclusion: Segmental LS measured by MRE is a promising repeatable quantitative biomarker for monitoring the treatment response to minimally invasive endovascular intervention in patients with BCS.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
