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    Modelling of the Precipitated Phases and Properties of Al-Zn-Mg-Cu Alloys

    Yu, Jingjing, Li, Xiaomei
    Journal of Phase Equilibria and Diffusion, 2011, Vol.32(4), pp.350-360 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Modelling of the Precipitated Phases and Properties of Al-Zn-Mg-Cu Alloys
    Author: Yu, Jingjing; Li, Xiaomei
    Subject: Al-Zn-Mg-Cu alloys ; CALPHAD ; composition ; modelling
    Description: The effects of Zn and Mg variations on the precipitated phases and the properties of Al-Zn-Mg-Cu alloys are investigated in this study. The quantities of stable and metastable phases have been calculated under various Zn and Mg contents by using software package JmatPro. The results show that the amount of the main hardening η (MgZn 2 ) phase and η′ phase increase with higher Zn and Mg contents. T (AlCuMgZn) phase and metastable counterpart significantly increase with the reduction of Zn contents or the increase of Mg contents. S (Al 2 CuMg) phase reduces gradually with the increase of Mg content, while S phase varies only slightly with the Zn content. The precipitation of GP zones is promoted by the increase of Zn or Mg content. The physical and mechanical properties of the alloys have been modelled in such way that increasing Zn or Mg content could reduce electrical conductivity and thermal conductivity, while the mechanical properties improve with increasing Zn content and varies markedly as Mg content changes from 2.7 to 2.9 wt.%.
    Is part of: Journal of Phase Equilibria and Diffusion, 2011, Vol.32(4), pp.350-360
    Identifier: 1547-7037 (ISSN); 1863-7345 (E-ISSN); 10.1007/s11669-011-9911-0 (DOI)

    • Several versions

    Psychological Stress Exerts Effects on Pathogenesis of Hepatitis B via Type-1/Type-2 Cytokines Shift toward Type-2 Cytokine Response

    He, Yingli, Gao, Heng, Li, Xiaomei, Zhao, Yingren
    PLoS ONE, 2014, Vol.9(8) [Peer Reviewed Journal]

    • Several versions

    Amexanthomycins A–J, pentangular polyphenols produced by Amycolatopsis mediterranei S699∆ rifA

    Li, Xiaomei, Wu, Xingkang, Zhu, Jing, Shen, Yuemao
    Applied Microbiology and Biotechnology, 2018, Vol.102(2), pp.689-702 [Peer Reviewed Journal]

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    Numerical Simulation and Superplastic Forming of Ti-6Al-4V Alloy for a Dental Prosthesis

    Li, Xiaomei, Soo, Steven
    Journal of Materials Engineering and Performance, 2011, Vol.20(3), pp.341-347 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Numerical Simulation and Superplastic Forming of Ti-6Al-4V Alloy for a Dental Prosthesis
    Author: Li, Xiaomei; Soo, Steven
    Subject: dental prosthesis ; finite element simulation ; superplastic forming
    Description: This article investigates superplastic forming (SPF) technique in conjunction with finite element (FE) simulation applied to dental repair. The superplasticity of Ti-6Al-4V alloys has been studied using a uniquely designed five-hole test with the aim of obtaining the modeled grain size and the flow stress parameters. The data from the five-hole test are subsequently put into the FE program for the simulation of a partial upper denture dental prosthesis (PUD4). The FE simulation of the PUD4 is carried out to set up appropriate input parameters for pressing due to the SPF process being fully automatic controlled. A variety of strain rates ranging from 2.4 × 10 −5 to 1 × 10 −3  s −1 are selected for the characterization of superplastic properties of the alloy. The Superflag FE program is used to generate an appropriate pressure-time profile and provide information on thickness, grain size, and grain growth rate distribution. Both membrane elements and solid elements have been adopted in the simulation and the results from both types of elements are compared. An evaluation of predicted parameters for the SPF of the prosthesis is presented.
    Is part of: Journal of Materials Engineering and Performance, 2011, Vol.20(3), pp.341-347
    Identifier: 1059-9495 (ISSN); 1544-1024 (E-ISSN); 10.1007/s11665-010-9710-5 (DOI)

    • Several versions

    Extract of Spatholobus suberctus Dunn ameliorates ischemia-induced injury by targeting miR-494

    Song, Shiqing, Lin, Faliang, Zhu, Pengyan, Wu, Changyan, Zhao, Shuling, Han, Qiao, Li, Xiaomei
    PLoS One, Sep 2017, Vol.12(9), p.e0184348 [Peer Reviewed Journal]

    • Several versions

    The Strica Homolog AaCASPS16 Is Involved in Apoptosis in the Yellow Fever Vector, Aedes albopictus

    Meng, Kun, Li, Xiaomei, Wang, Shengya, Zhong, Chunyan, Yang, Zhouning, Feng, Lingyan, Liu, Qingzhen
    PLoS ONE, 2016, Vol.11(6) [Peer Reviewed Journal]

    • Several versions

    Bidirectional relationships between retention and health-related quality of life in Chinese mainland patients receiving methadone maintenance treatment

    Zhou, Kaina, Wang, Duolao, Li, Hengxin, Wei, Xiaoli, Yin, Juan, Liang, Peifeng, Kou, Lingling, Hao, Mengmeng, You, Lijuan, Li, Xiaomei, Zhuang, Guihua
    PLoS ONE, 2017, Vol.12(6) [Peer Reviewed Journal]

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    Reduction of Na/K-ATPase potentiates marinobufagenin-induced cardiac dysfunction and myocyte apoptosis

    Liu, Changxuan, Bai, Yan, Chen, Yiliang, Wang, Yu, Sottejeau, Yoann, Liu, Lijun, Li, Xiaomei, Lingrel, Jerry B, Malhotra, Deepak, Cooper, Christopher J, Shapiro, Joseph I, Xie, Zi-Jian, Tian, Jiang
    The Journal of biological chemistry, 11 May 2012, Vol.287(20), pp.16390-8 [Peer Reviewed Journal]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Title: Reduction of Na/K-ATPase potentiates marinobufagenin-induced cardiac dysfunction and myocyte apoptosis
    Author: Liu, Changxuan; Bai, Yan; Chen, Yiliang; Wang, Yu; Sottejeau, Yoann; Liu, Lijun; Li, Xiaomei; Lingrel, Jerry B; Malhotra, Deepak; Cooper, Christopher J; Shapiro, Joseph I; Xie, Zi-Jian; Tian, Jiang
    Subject: Apoptosis -- Drug Effects ; Bufanolides -- Adverse Effects ; Enzyme Inhibitors -- Adverse Effects ; Heart Diseases -- Enzymology ; Muscle Proteins -- Metabolism ; Myocytes, Cardiac -- Enzymology ; Sodium-Potassium-Exchanging Atpase -- Metabolism
    Description: Decreases in cardiac Na/K-ATPase have been documented in patients with heart failure. Reduction of Na/K-ATPase α1 also contributes to the deficiency in cardiac contractility in animal models. Our previous studies demonstrate that reduction of cellular Na/K-ATPase causes cell growth inhibition and cell death in renal proximal tubule cells. To test whether reduction of Na/K-ATPase in combination with increased cardiotonic steroids causes cardiac myocyte death and cardiac dysfunction, we examined heart function in Na/K-ATPase α1 heterozygote knock-out mice (α1(+/-)) in comparison to wild type (WT) littermates after infusion of marinobufagenin (MBG). Adult cardiac myocytes were also isolated from both WT and α1(+/-) mice for in vitro experiments. The results demonstrated that MBG infusion increased myocyte apoptosis and induced significant left ventricle dilation in α1(+/-) mice but not in their WT littermates. Mechanistically, it was found that in WT myocytes MBG activated the Src/Akt/mTOR...
    Is part of: The Journal of biological chemistry, 11 May 2012, Vol.287(20), pp.16390-8
    Identifier: 1083-351X (E-ISSN); 22451662 Version (PMID); 10.1074/jbc.M111.304451 (DOI)

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    B7-H4’s Role “Beyond the Tumor”

    Yu, Ning, Li, Xiaomei, Zheng, Songguo, Li, Xiangpei
    Inflammation, 2013, Vol.36(4), pp.941-947 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: B7-H4’s Role “Beyond the Tumor”
    Author: Yu, Ning; Li, Xiaomei; Zheng, Songguo; Li, Xiangpei
    Subject: costimulatory molecule ; B7-H4 ; immune
    Description: B7-H4 is a ligand in the B7 costimulatory family, executing suppressive function on the immune system in many diseases, such as cancer, allograft rejection, and autoimmune diseases. The receptor for this molecule has yet to be clarified. The engagement of B7-H4 inhibits proliferation of immune cells by stopping the cell cycle at the G0/G1 phase and leads to apoptosis via the Fas/FasL pathway consequently accelerating tumor progression and alleviating allograft rejection. The pathogenic role of B7-H4 in tumors has been widely established, but few studies have focused on its function in other disorders. Here, we review recent advances in our understanding of B7-H4 biology in disease settings other than tumors and document the beneficial values to treat those diseases by targeting this molecule and related signaling pathways.
    Is part of: Inflammation, 2013, Vol.36(4), pp.941-947
    Identifier: 0360-3997 (ISSN); 1573-2576 (E-ISSN); 10.1007/s10753-013-9624-0 (DOI)

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    Cluster-delay consensus in first-order multi-agent systems with nonlinear dynamics

    Ma, Zhongjun, Wang, Yi, Li, Xiaomei
    Nonlinear Dynamics, 2016, Vol.83(3), pp.1303-1310 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Cluster-delay consensus in first-order multi-agent systems with nonlinear dynamics
    Author: Ma, Zhongjun; Wang, Yi; Li, Xiaomei
    Subject: Multi-agent system ; Consensus ; Lyapunov stability
    Description: In this paper, a new concept of cluster-delay consensus is defined, which means that all agents in the same cluster reach identical consensus and that any two agents in the different clusters reach delay consensus simultaneously. In fact, cluster-delay consensus is a kind of dynamics between identical consensus and cluster consensus. And then, the problem of leader-following cluster-delay consensus in a nonlinear multi-agent system is investigated. By using graph theory, Lyapunov stability theory and matrix theory, a control protocol for cluster-delay consensus is given, which is based on intrinsic dynamics of each agent and the topology of multi-agent system. Finally, some numerical simulations are also given to verify the theoretical analysis.
    Is part of: Nonlinear Dynamics, 2016, Vol.83(3), pp.1303-1310
    Identifier: 0924-090X (ISSN); 1573-269X (E-ISSN); 10.1007/s11071-015-2403-8 (DOI)