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| 1 | Field-Oriented Control and Direct Torque Control for a Five-Phase Fault-Tolerant Flux-Switching Permanent-Magnet Motor显示文摘This paper presents a comparative performance analysis of a new five-phase fault-tolerant flux-switching permanent-magnet(FT-FSPM)motor for high-reliability applications under the two most popular control schemes,namely,field-oriented control(FOC)and direct torque control(DTC)based on stator-flux orientation.Firstly,the new motor topology and structural characteristics are briefly presented.Secondly,the d-and q-axis for the FT-FSPM motor are defined,which is crucial to the mathematical model and control scheme,and the mathematical models are derived.Then,two control schemes,i.e.,FOC and DTC,and the main system are proposed.The operational principles of the two control schemes are presented,and space vector pulse width modulation(SVPWM)based on four neighboring vectors is adopted to reduce current harmonics and torque ripples.Finally,the simulated and experimental results are given,and performance analysis of the two control schemes are compared and discussed.The results reveal that FOC scheme has the sinusoidal phase current and low torque ripples,while the DTC scheme has fast dynamic response,verifying the effectiveness of the two proposed control schemes.This paper is a primary investigation for more possible improvements in the control schemes of the five-phase FS-FTPM motor. | Binyu Wu Dezhi Xu Jinghua Ji Wenxiang Zhao Qingwang Jiang | 2018 | Chinese Journal of Electrical Engineering2018，4，4： | 2 |
| 2 | Rhombohedraleorthorhombic phase coexistence and electricalproperties of Ta and BaZrO3co-modified(K,Na)NbO3lead-free ceramics显示文摘 | Zhang Binyu Wu Jiagang Wang Xiaopeng | 2013 | Current Applied Physics2013，13，2013： | 1 |
| 3 | Ruxolitinib improves the inflammatory microenvironment,restores glutamate homeostasis,and promotes functional recovery after spinal cord injury显示文摘The inflammatory microenvironment and neurotoxicity can hinder neuronal regeneration and functional recovery after spinal cord injury.Ruxolitinib,a JAK-STAT inhibitor,exhibits effectiveness in autoimmune diseases,arthritis,and managing inflammatory cytokine storms.Although studies have shown the neuroprotective potential of ruxolitinib in neurological trauma,the exact mechanism by which it enhances functional recovery after spinal cord injury,particularly its effect on astrocytes,remains unclear.To address this gap,we established a mouse model of T10 spinal cord contusion and found that ruxolitinib effectively improved hindlimb motor function and reduced the area of spinal cord injury.Transcriptome sequencing analysis showed that ruxolitinib alleviated inflammation and immune response after spinal cord injury,restored EAAT2 expression,reduced glutamate levels,and alleviated excitatory toxicity.Furthermore,ruxolitinib inhibited the phosphorylation of JAK2 and STAT3 in the injured spinal cord and decreased the phosphorylation level of nuclear factor kappa-B and the expression of inflammatory factors interleukin-1β,interleukin-6,and tumor necrosis factor-α.Additionally,in glutamate-induced excitotoxicity astrocytes,ruxolitinib restored EAAT2 expression and increased glutamate uptake by inhibiting the activation of STAT3,thereby reducing glutamate-induced neurotoxicity,calcium influx,oxidative stress,and cell apoptosis,and increasing the complexity of dendritic branching.Collectively,these results indicate that ruxolitinib restores glutamate homeostasis by rescuing the expression of EAAT2 in astrocytes,reduces neurotoxicity,and effectively alleviates inflammatory and immune responses after spinal cord injury,thereby promoting functional recovery after spinal cord injury. | Jiang Cao Xiao Yu Jingcheng Liu Jiaju Fu Binyu Wang Chaoqin Wu Sheng Zhang Hongtao Chen Zi Wang Yinyang Xu Tao Sui Jie Chang Xiaojian Cao | 2024 | Neural Regeneration Research2024，19，11： | 0 |
| 4 | Phosphorus substitution into Co_(3)S_(4) nanoneedle arrays for efficient hydrogen evolution catalysis显示文摘Transition-metal based hybrids with excellent stability and activity are favorable candidates for hydrogen evolution reaction(HER).The development of typical Co_(3)S_(4)has recently received considerable attention due to the multiple valences of the spinel-structured compound.However,the in-depth effect of the dopants on the HER performance of Co_(3)S_(4)has not been systematically clarified.Here,we report a sequential synthesis of a spinel-structured cobalt phosphosulfate nanoneedle arrays grown on carbon cloth(namely,P-Co_(3)S_(4)/CC).Results indicate that P-Co_(3)S_(4)/CC exhibits high electrocatalytic performance for HER with a low overpotential of 65 mV to drive10 mAcm……(-2),a small Tafel slope of 76.6 mV per decade,and great long-term stability for 25 h at various current densities in alkaline electrolyte.The first-principle calculation result reveals that the phosphorous doping work at Co_(3)S_(4)enhances the HER performance significantly because the tetrahedral Co^(2+)active sites nearest the P atoms more easily weaken the H-O bond to form intermediates.The experiment result characterization and theoretical calculations further show that the introduction of P atom not only offers more active sites but also improves the electrical conductivity in an alkaline electrolyte solution.Consequently,the identification of active species provides feasible guidance for the further design of high-performance spinel-structured catalysts. | Zhangtao Guo Gaoqi Tian Lin Liu Binyu Zhang Qiang Wu Yang Cao Jinchun Tu Lei Ding Xiaolin Zhang | 2021 | Journal of Materials Science & Technology2021，，30： | 0 |
| 5 | Extradural contralateral S1 nerve root transfer for spastic lower limb paralysis显示文摘The current study aims to ascertain the anatomical feasibility of transferring the contralateral S1 ventral root(VR)to the ipsilateral L5 VR for treating unilateral spastic lower limb paralysis.Six formalin-fixed(three males and three females)cadavers were used.The VR of the contralateral S1 was transferred to the VR of the ipsilateral L5.The sural nerve was selected as a bridge between the donor and recipient nerve.The number of axons,the cross-sectional areas and the pertinent distances between the donor and recipient nerves were measured.The extradural S1 VR and L5 VR could be separated based on anatomical markers of the dorsal root ganglion.The gross distance between the S1 nerve root and L5 nerve root was 31.31(±3.23)mm in the six cadavers,while that on the diffusion tensor imaging was 47.51(±3.23)mm in 60 patients without spinal diseases,and both distances were seperately greater than that between the outlet of S1 from the spinal cord and the ganglion.The numbers of axons in the S1 VRs and L5 VRs were 13414.20(±2890.30)and 10613.20(±2135.58),respectively.The cross-sectional areas of the S1 VR and L5 VR were 1.68(±0.26)mm2 and 1.08(±0.26)mm2,respectively.In conclusion,transfer of the contralateral S1 VR to the ipsilateral L5 VR may be an anatomically feasible treatment option for unilateral spastic lower limb paralysis. | Jiang Cao Jie Chang Chaoqin Wu Sheng Zhang Binyu Wang Kaixiang Yang Xiaojian Cao Tao Sui | 2023 | The Journal of Biomedical Research2023，37，5： | 0 |
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