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13篇 您的检索式:作者名="Yuwei Xiang"
    题名 作者 年代 出处 被引量
1Coordinated Modulation Strategy Considering Multi-HVDC Emergency for Enhancing Transient Stability of Hybrid AC/DC Power Systems显示文摘This paper presents a multi-HVDC emergency coordinated modulating strategy to enhance the transient stability of hybrid AC/DC power systems.First,the main factors that affect the unbalanced energy distribution during a fault are analyzed,and the dominant generators are determined online.Next,considering the influence on both generators in the sending and receiving ends,the assessment index that evaluates the effects of DC power support is established.On the basis of this,a dynamic DC power support strategy is put forward,and the DC support sequence table is promptly updated by the changing dominant generators.The AC/DC hybrid power system with multi-DC lines is built and used as a test system.The simulation results of different scenarios demonstrate that the proposed method could follow the dominant generator dynamically and adjust the DC participating in modulation to enhance the transient stability effectively and quickly.Tong Wang Congcong Li Dengkai Mi Zengping Wang Yuwei Xiang 2020CSEE Journal of Power and Energy Systems2020,6,4:4
2A Photoelectric-Stimulated MoS_(2) Transistor for Neuromorphic Engineering显示文摘The von Neumann bottleneck has spawned the rapid expansion of neuromorphic engineering and brain-like networks.Synapses serve as bridges for information transmission and connection in the biological nervous system.The direct implementation of neural networks may depend on novel materials and devices that mimic natural neuronal and synaptic behavior.By exploiting the interfacial effects between MoS_(2) and AlOx,we demonstrate that an h-BN-encapsulated MoS_(2) artificial synapse transistor can mimic the basic synaptic behaviors,including EPSC,PPF,LTP,and LTD.Efficient optoelectronic spikes enable simulation of synaptic gain,frequency,and weight plasticity.The Pavlov classical conditioning experiment was successfully simulated by electrical tuning,showing associated learning behavior.In addition,h-BN encapsulation effectively improves the environmental time stability of our devices.Our h-BN-encapsulated MoS_(2) artificial synapse provides a new paradigm for hardware implementation of neuromorphic engineering.Shuiyuan Wang Xiang Hou Lan Liu Jingyu Li Yuwei Shan Shiwei Wu David Wei Zhang Peng Zhou 2019Research2019,,1:1
3Black titanium dioxide nanomaterials for photocatalytic removal of pollutants:A review显示文摘Semiconductor photocatalysis is one of the most widely used environment-friendly technologies for removing various contaminants.As a well-developed photocatalyst,titanium dioxide(TiO_(2))still has limits in its wide bandgap and rapid recombination rate of photogenerated charge carriers.Recently,black TiO_(2)appears as a strong candidate in the improvement of sunlight harvesting,because of its excellent absorption capacity and utilization of solar radiation.Despite extensive applications in both environmental and energy fields,the use of black TiO_(2)as a photocatalyst in pollutant removal is ambiguous.The primary objective of the review is to comprehensively evaluate the applications of black TiO_(2)in photocatalytic removal of contaminants,including conventional organic contaminants,emerging contaminants,microbes,and heavy metals.The basic properties,photocatalytic mechanism,and synthesis of black TiO_(2)have been summarized and analyzed.Moreover,the stability and recoverability of black TiO_(2)have also been discussed.Finally,the perspectives of the application of black TiO_(2)in pollutant removal have been further discussed.Ying Liang Guohe Huang Xiaying Xin Yao Yao Yongping Li Jianan Yin Xiang Li Yuwei Wu Sichen Gao 2022Journal of Materials Science & Technology2022,,17:1
4Two methods of chloral hydrate given drugs for pediatric calming effect observation显示文摘Liu Zeng Xiang Yuan Junjun Hu Yuwei 2010Journal of practical medicine in China2010,,27:1
5Development and transdifferentiation into inner hair cells require Tbx2显示文摘Atohl is essential for the development of both outer hair cells(OHCs)and inner hair cells(IHCs)in the mammalian co chlea.Whereas Ikzf2 is necessary for OHC development,the key gene re quired for IHC development remains unknown.We found that deletion of Tbx2 in neonatal IHCs led to their transdifferentiation into OHCs by repressing 26.7%of IHC genes and inducing 56.3%of OHC genes,including Ikzf2.More importantly,persistent expression of Tbx2 coupled with transient Atohl expression effe ctively reprogrammed non-sensory supporting cells into new IHCs expressing the functional IHC marker vGlut3.The differentiation status of these new IHCs was considerably more advanced than that previously reported.Thus,Tbx2 is essential for IHC development and co-upregulation of Tbx2 with Atohl in supporting cells represents a new approach for treating deafness related to IHC degeneration.Zhenghong Bi Xiang Li Minhui Ren Yunpeng Gu Tong Zhu Shuting Li Guangqin Wang Suhong Sun Yuwei Sun Zhiyong Liu 2022National Science Review2022,9,12:1
6A novel pedestrian dead reckoning solution using motion recognition algorithm with wearable EMG sensors显示文摘Wang Qian Chen Yuwei Chen Xiang 2011Journal of Global Positioning Systems2011,10,1:1
7Use of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers increases the risk of postoperative acute kidney injury after elective endovascular abdominal aortic aneurysm repair显示文摘Background: Endovascular abdominal aortic aneurysm repair (EVAR) is the major treatment for abdominal aortic aneurysm (AAA);however, EVAR still carries a considerable risk of acute kidney injury (AKI). The present study aimed to investigate the risk factors for AKI after elective EVAR procedures.Methods: This was a retrospective observational study. Eligible patients who underwent EVAR from September 2011 to March 2019 in West China Hospital were included. The primary outcome was the occurrence of AKI within two days after EVAR, which was defined by the Kidney Disease Improving Global Outcomes Clinical Practice Guideline. Demographics, comorbidities, medications, laboratory tests, anatomical parameters of AAA, and relative operative details were collected as variables. Univariable and multivariable logistic regression analyses were applied to identify the risk factors among variables, and covariate interactions were further assessed.Results: A total of 679 eligible patients were included. The incidence of postoperative AKI was 8.2% (56/679) in the whole cohort, and it was associated with a lower 5-year survival rate (63.5%vs. 80.9%;χ^(2) = 4.10;P = 0.043). The multivariable logistic regression showed that chronic kidney disease (OR, 5.06;95% CI: 1.43-17.95;P = 0.012), angiotensin-converting enzyme inhibitors (ACEIs)/angiotensin receptor blockers (ARBs) (OR, 2.60;95% CI: 1.17-5.76;P = 0.019), and short neck (OR, 2.85;95% CI: 1.08-7.52;P = 0.035) were independent risk factors for postoperative AKI. In the covariate interaction analysis, the effect of ACEIs/ARBs use on postoperative AKI was similar across all subgroups (P > 0.05), thereby suggesting a robust effect of ACEIs/ARBs use in all patients undergoing elective endovascular abdominal aortic aneurysm repair.Conclusions: Postoperative AKI was associated with lower survival rate, and the use of ACEIs/ARBs was the only adjustable independent risk factor. Clinicians should consider withdrawing ACEIs/ARBs in high-risk patients undergoing elective endovascular abdominal aortic aneurysm repair to prevent postoperative AKI.Yuwei Xiang Yang Liu Jichun Zhao Bin Huang Zhoupeng Wu Xiyang Chen 2022Chinese Medical Journal2022,135,23:1
8Effect of Sulfonation Degree on Performance of Proton Exchange Membranes for Direct Methanol Fuel Cells显示文摘XIANG Zheng ZHAO Xueping GE Junjie MA Shuhua ZHANG Yuwei NA Hui 2016Chemical Research in Chinese Universities2016,32,2:1
9Overexpression of a maize WRKY58 gene enhances drought and salt tolerance in transgenic rice显示文摘Ronghao Cai Yang Zhao Yufu Wang Yongxiang Lin Xiaojian Peng Qian Li Yuwei Chang Haiyang Jiang Yan Xiang Beijiu Cheng 2014Plant Cell, Tissue and Organ Culture (PCTOC)2014,,3:1
10CD97 negatively regulates the innate immune response against RNA viruses by promoting RNF125-mediated RIG-I degradation显示文摘The G protein-coupled receptor ADGRE5(CD97)binds to various metabolites that play crucial regulatory roles in metabolism.However,its function in the antiviral innate immune response remains to be determined.In this study,we report that CD97 inhibits virus-induced type-I interferon(IFN-I)release and enhances RNA virus replication in cells and mice.CD97 was identified as a new negative regulator of the innate immune receptor RIG-I,and RIG-1 degradation led to the suppression of the IFN-I signaling pathway.Furthermore,overexpression of CD97 promoted the ubiquitination of RIG-I,resulting in its degradation,but did not impact its mRNA expression.Mechanistically,CD97 upregulates RNF125 expression to induce RNF125-mediated RIG-I degradation via K48-linked ubiquitination at Lys181 after RNA virus infection.Most importantly,CD97-deficient mice are more resistant than wild-type mice to RNA virus infection.We also found that sanguinarine-mediated inhibition of CD97 effectively blocks VSV and SARS-CoV-2 replication.These findings elucidate a previously unknown mechanism through which CD97 negatively regulates RIG-I in the antiviral innate immune response and provide a molecular basis for the development of new therapeutic strategies and the design of targeted antiviral agents.Huasong Chang Peili Hou Xuefeng Wang Aibiao Xiang Hao Wu Wenjing Qi Rukun Yang Xue Wang Xingyu Li Wenqi He Guimin Zhao Weiyang Sun Tiecheng Wang Daniel Chang He Hongmei Wang Yuwei Gao Hongbin He 2023Cellular & Molecular Immunology2023,20,12:0
11Mature dendritic cell-derived dendrosomes swallow oxaliplatin-loaded nanoparticles to boost immunogenic chemotherapy and tumor antigen-specific immunotherapy显示文摘The cytomembrane-derived delivery platform represents a promising biomimetic strategy in oncotherapy.To achieve durable and reliable tumor inhibition,mature dendrosomes(mDs),which were isolated from bone marrow-derived dendritic cells undergoing CT26 tumor antigen(TA)stimulation,were fused with redox-responsive nanoparticles(NPs)that were composed of poly(disulfide ester amide)polymers with an intensified disulfide density and hydrophobic oxaliplatin(OXA)prodrugs with the ability to potentiate immunogenicity.In vitro and in vivo results revealed that NP/mDs could induce tumor cell death through mitochondrial pathway and thus created immunogenic microenvironments,but also elicited immunocyte differentiation by TA cross-dressing and infiltration by direct presentation.By further neutralizing immune-regulatory interaction,the administration of PD-L1 antibody(αPD-L1)greatly improved antitumor efficiency of NP/mDs.Furthermore,the effectors of host immune systems effectively inhibited the growth and metastasis of distal tumors,likely because the autologous TA evoked by OXA and allogeneic TA delivered by mDs acted as additional stimuli to reinforce the immune response of tumor-specific T cells and immunosurveillance toward oncogenesis.These results demonstrated that NP/mDs could simultaneously realize immunogenic chemotherapeutics and specific TA delivery.In combination withαPD-L1,the antitumor effect was further enhanced.Therefore,NP/mDs provide a promising strategy for the comprehensive treatment of malignancy.Xing Chen Xiang Ling Jiaxuan Xia Ying Zhu Longlong Zhang Yuwei He Anni Wang Guolong Gu Bo Yin Jianxin Wang 2022Bioactive Materials2022,7,9:0
12Boron promoted Fe^(3+)/peracetic acid process for sulfamethazine degradation:Efficiency,role of boron,and identification of the reactive species显示文摘In this work,boron(B)was used to promote Fe^(3+)/peracetic acid(Fe^(3+)/PAA)for the degradation of sulfamethazine(SMT).An SMT degradation efficiency of 9.1%was observed in the Fe^(3+)/PAA system over 60 min,which was significantly increased to 99.3%in the B/Fe^(3+)/PAA system over 10 min.The B/Fe^(3+)/PAA process also exhibited superior resistance to natural substances,excellent adaptability to different harmful substances,and good removal of antibiotics in natural fresh water samples.The mechanism of action of boron for Fe^(3+)reduction was determined using scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),Fourier transform infrared(FT-IR)spectroscopy,density functional theory(DFT)calculations,and electrochemical tests.The dominant role of^(·)OH was confirmed using quenching experiments,electron spin resonance(EPR)spectroscopy,and quantitative tests.Organic radicals(R-O^(·))and Fe(IV)also significantly contribute to the removal of SMT.DFT calculations on the reaction between Fe^(2+)and the PAA were conducted to further determine the contribution from ^(·)OH,R-O^(·),and Fe(IV)from the perspective of thermodynamics and the reaction pathways.Different boron dosages,Fe^(3+)dosages,and initial pH values were also investigated in the B/Fe^(3+)/PAA system to study their effect of SMT removal and the production of the reactive species.Fe(IV)production determined the k_(R-O·+Fe(IV))value suggesting that Fe(IV)may play a more important role than R-O^(·).A comparison of the results with other processes has also proved that the procedure described in this study(B/Fe^(3+)/PAA)is an effective method for the degradation of antibiotics.Yanhong Zhang Guangbing Liu Yuzhu Xue Lichun Fu Yawei Qian Minhui Hou Xiang Li Chen Ling Ying Zhang Yuwei Pan 2024Journal of Environmental Sciences2024,,1:0
13Investigation of time domain characteristics of negative capacitance FinFET by pulse-train approaches显示文摘The HfO2-based ferroelectric field effect transistors(FeFET)have been widely studied for their ability in breaking the Boltzmann limit and the potential to be applied to low-power circuits.This article systematically investigates the transient response of negative capacitance(NC)fin field-effect transistors(FinFETs)through two kinds of self-built test schemes.By comparing the results with those of conventional FinFETs,we experimentally demonstrate that the on-current of the NC FinFET is not degraded in the MHz frequency domain.Further test results in the higher frequency domain show that the on-state current of the prepared NC FinFET increases with the decreasing gate pulse width at pulse widths below 100 ns and is consistently greater(about 80%with NC NMOS)than the on-state current of the conventional transistor,indicating the great potential of the NC FET for future high-frequency applications.Yuwei Cai Zhaohao Zhang Qingzhu Zhang Jinjuan Xiang Gaobo Xu Zhenhua Wu Jie Gu Huaxiang Yin 2021Journal of Semiconductors2021,42,11:0
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