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- 저자 : Xiaoxu Han (검색결과 4 건)
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Han, Bing,Zhao, Kai,Hou, Xiaoxue,Kim, Dong-Jin,Kim, Bok-Hee,Ha, Su,Norton, M. Grant,Xu, Qing,Ahn, Byung-Guk Elsevier 2017 Journal of Power Sources Vol.338 No.-
<P><B>Abstract</B></P> <P>A titanium-doped Ce<SUB>0.8</SUB>Sm<SUB>0.2</SUB>O<SUB>1.9</SUB> composite is developed as an anode component of low temperature solid oxide fuel cells running on methane fuel. Crystallographic parameters of (Ce<SUB>0.8-x</SUB>Ti<SUB>x</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> (0.00 < x < 0.10) are investigated with respect to the amount of titanium. The composites show a single cubic phase with the titanium amount being in the range of 0.00–0.07, while the lattice parameters decrease with increasing titanium content. The (Ce<SUB>0.8-x</SUB>Ti<SUB>x</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> composites are applied to an anode-supported single cell consisting of Ni-(Ce<SUB>0.8-x</SUB>Ti<SUB>x</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> anode/Ce<SUB>0.8</SUB>Sm<SUB>0.2</SUB>O<SUB>1.9</SUB> electrolyte/La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>Co<SUB>0.2</SUB>Fe<SUB>0.8</SUB>O<SUB>3-δ</SUB> cathode. Catalytic properties of Ni-(Ce<SUB>0.8-x</SUB>Ti<SUB>x</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> are inspected with the electrochemical performance and performance stability of the cells in dry methane fuel. The cell with Ni-(Ce<SUB>0.73</SUB>Ti<SUB>0.07</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> (x = 0.07) anode displays a low polarization resistance and an optimum maximum power density (679 mW cm<SUP>−2</SUP> at 600 °C). A performance stability investigation indicates that the cell exhibits a fairly low degradation rate of 3 mV h<SUP>−1</SUP> during a 31 h operation in dry methane. These findings suggest the application potential of the titanium doped Ce<SUB>0.8</SUB>Sm<SUB>0.2</SUB>O<SUB>1.9</SUB> for the anode of solid oxide fuel cells.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Ti doped Ce<SUB>0.8</SUB>Sm<SUB>0.2</SUB>O<SUB>1.9</SUB> is found to be a potential anode material. </LI> <LI> Ni-(Ce<SUB>0.8-x</SUB>Ti<SUB>x</SUB>)Sm<SUB>0.2</SUB>O<SUB>2-δ</SUB> shows excellent electrochemical performance in methane. </LI> <LI> Good performance stability demonstrates application feasibility of the anode. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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HCBP6 upregulates human SREBP1c expression by binding to C/EBPβ-binding site in the SREBP1c promoter
( Xueliang Yang ),( Ming Han ),( Shunai Liu ),( Xiaoxue Yuan ),( Xiaojing Liu ),( Shenghu Feng ),( Li Zhou ),( Yaru Li ),( Hongping Lu ),( Jun Cheng ),( Shumei Lin ) 생화학분자생물학회(구 한국생화학분자생물학회) 2018 BMB Reports Vol.51 No.1
Sterol regulatory element-binding protein-1c (SREBP1c) plays an important role in triglyceride (TG) homeostasis. Although our previous study showed that hepatitis C virus core-binding protein 6 (HCBP6) regulates SREBP1c expression to maintain intracellular TG homeostasis, the mechanism underlying this regulation is unclear. In the present study, we found that HCBP6 increased intracellular TG levels by upregulating SREBP1c expression. HCBP6 increased SREBP1c transcription by directly binding to the SREBP1c promoter (at the -139- to +359-bp region). Moreover, we observed that HCBP6 interacted with C/EBPβ-binding site in the SREBP1c promoter both in vitro and in vivo. These results indicate that HCBP6 upregulates human SREBP1c expression by binding to the C/EBPβ-binding site in the SREBP1c promoter. [BMB Reports 2018; 51(1): 33-38]
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Shuying Dong,Xuanxuan Yan,Wenli Li,Yafei Liu,Xiaoxu Han,Xiaodan Liu,Jinglan Feng,Chongfei Yu,Chunyan Zhang,Jianhui Sun 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.108 No.-
In order to obtain a robust, durable and efficient heterogeneous catalyst, macroscopic monolithic Zndopeda-Fe2O3/graphene aerogel (GA) hybrid architecture with integrated morphology and hierarchicallyporous structure were controllably synthesized via a facile in-situ hydrothermal method and then used aspersulfate (PS) activator for sulfamonomethoxine (SMM) wastewater purification. Several key reactionparameters including the initial SMM concentration, reaction temperature, coexisting inorganic anionsand SMM in real natural water samples had different influence on the SMM removal efficiency. The catalyticefficiency of Zn-doped a-Fe2O3/GA with the molar ratio of Fe/Zn = 2:1.5 was about 66%, 62%, 66%and 11%33% higher than that of GA, a-Fe2O3/GA, Zn/GA and other Fe/Zn molar ratio. The improvedactivity of Fe/Zn = 2:1.5 benefits from the synergistic effects of the sp2 hybridized carbon and porousframework, as well as the surface oxygenic functional groups, which accelerate the pollutant/oxidant dispersionand electron transfer. Electron paramagnetic resonance results indicate that OH, 1O2 and SO4radicals account for the catalytic degradation of SMM and the activation of PS in present system is differentfrom conventional homogeneous systems, and speculate mechanism was proposed based on theobtained data.
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The Compact Pulsed Hadron Source: A Design Perspective
Jie Wei,Huaibi Chen,Cheng Cheng,Qiang Du,Zhe Feng,Xialin Guan,Xiaoxue Han,Tuchen Huang,Renkai Li,Chun K. Loong,Beibei Shao,Chuanxiang Tang,Qingzi Xing,Yigang Yang,Hao Zha,Huayi Zhang,Shuxin Zheng,Bin 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.56 No.61
During the past decades, large-scale national neutron sources have been developed in Asia, Europe,and North America. Complementing such efforts, compact hadron beam complexes and neutron sources intended to serve primarily universities and industrial institutes have been proposed,and some have recently been established. Responding to the demand in China for pulsed neutron/proton-beam platforms that are dedicated to fundamental and applied research for users in multiple disciplines from materials characterization to hadron therapy and radiography to accelerator-driven sub-critical reactor systems (ADS) for nuclear waste transmutation, we have initiated the construction of a compact, yet expandable, accelerator complex-the Compact Pulsed Hadron Source (CPHS). It consists of an accelerator front-end (a high-intensity ion source, a 3-MeV radio-frequency quadrupole linac (RFQ), and a 13-MeV drift-tube linac (DTL)), a neutron target station (a beryllium target with solid methane and room-temperature water moderators/reflector),and experimental stations for neutron imaging/radiography, small-angle scattering, and proton irradiation. In the future, the CPHS may also serve as an injector to a ring for proton therapy and radiography or as the front end to an ADS test facility. In this paper, we describe the design of the CPHS technical systems and its intended operation.
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