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| 1 | Theoretical analysis of the harmonic characteristics of modular multilevel converters显示文摘To understand the operation principle of the modular multilevel converter(MMC)deeply,it is necessary to study the harmonic characteristics of the MMC theoretically.Besides,the analytical harmonic formulas of the MMC are useful in designing the main circuit,reducing the losses and improving the waveform quality.Based on the average switching function and the Fourier series harmonic analysis,this paper deduces the analytical expressions for such electrical quantities as the arm voltage,the arm current,the capacitor voltage,the capacitor current and the circulating current of the MMC.Finally,a digital model of a 21-level MMC-HVDC system is realized in PSCAD/EMTDC.The results of the analytical expressions coincide with the simulation results,which verify the effectiveness and feasibility of the proposed analytical expressions. | XIAO HuangQing XU Zheng XUE YingLin TANG Geng | 2013 | Science China(Technological Sciences)2013，56，11： | 10 |
| 2 | Atomically precise metal-chalcogenide semiconductor molecular nanoclusters with high dispersibility:Designed synthesis and intracluster photocarrier dynamics显示文摘A comprehensive understanding of excited-state dynamics of semiconductor quantum dots or nanomaterials at the atomic or molecular level is of scientific importance.Pure inorganic(or non-covalently protected)seimiconductor molecular nanoclusters with atomically precise structure are contributive to establish accurate correlation of excited-state dynamics with their composition/structure,however,the related studies are almost blank because of unresolved solvent dispersion issue.Herein,we designedly created the largest discrete chalcogenide seimiconductor molecular nanoclusters(denoted P2-CuMSnS,M=In or/and Ga)with great dispersibility,and revealed an interesting intracluster“core–shell”charge transfer relaxation dynamics.A systematic red shift in absorption spectra with the gradual substitution of In by Ga was experimentally and computationally investigated,and femtosecond transient absorption measurements further manifested there were three ultrafast processes in excited-state dynamics of P2 nanoclusters with the corresponding amplitudes directed by composition variation.Current results hold the great promise of the solution-processible applications of semiconductor-NC-based quantum dots and facilitate the development of atomically precise nano-chemistry. | Jiaxu Zhang Chaochao Qin Yeshuang Zhong Xiang Wang Wei Wang Dandan Hu Xiaoshuang Liu Chaozhuang Xue Rui Zhou Lei Shen Yinglin Song Dingguo Xu Zhien Lin Jun Guo Haifeng Su Dong-Sheng Li Tao Wu | 2020 | Nano Research2020，13，10： | 2 |
| 3 | Self-start control with grouping sequentially precharge for the C-MMC-based HVDC system 显示文摘 | XUE Yinglin XU Zheng TANG Geng | 2013 | IEEE Transactions on Power Delivery2013，29，1： | 1 |
| 4 | Self-start control with grouping sequentially precharge {or the C-MMC-based HVDC system显示文摘 | XUE Yinglin XU Zheng TANG Geng | 2014 | IEEE Trans on Power Delivery2014，29，1： | 1 |
| 5 | Modulation and control for a new hybrid cascaded multilevel converter with DC blocking capability显示文摘 | XUE Yinglin XU Zheng TU Qingrui | 2012 | IEEE Trans on Power Delivery2012，27，4： | 1 |
| 6 | DC-side harmonic currents calculation and DC-loop resonance analysis for an LCC- MMC hybrid HVDC transmission system显示文摘 | Zhang Zheren Xu Zheng Xue Yinglin | 2015 | IEEE Transactions on Power Delivery2015，30，： | 1 |
| 7 | On the bipolar MMC-HVDC topology suitable for bulk power overhead line transmission: configuration, control, and DC fault analysis显示文摘 | Xue Yinglin Xu Zheng | 2014 | IEEE Transactions on Power Delivery2014，，： | 1 |
| 8 | Self-start control with grouping sequentially precharge for the C-MMC-based HVDC system显示文摘 | Xue Yinglin Xu Zheng Tang Geng | 2014 | IEEE Transactions on Power Delivery2014，29，1： | 1 |
| 9 | Self-start control with grouping sequentially precharge for the C-MMC-based HVDC system显示文摘 | Xue Yinglin Xu Zheng Tang Geng | 2014 | IEEE Transactions on Power Delivery2014，29，1： | 1 |
| 10 | Self-start conlrol with grouping sequentially precharge for the C-MMC-based HVDC system 显示文摘 | Yinglin Xue Zheng Xu Geng Tang | 2014 | IEEE Transactions on Power Deliver- y2014，29，1： | 1 |
| 11 | Dihydroartemisinin increased the abundance of Akkermansia muciniphila by YAP1 depression that sensitizes hepatocellular carcinoma to anti-PD-1 immunotherapy显示文摘The effect of anti-programmed cell death 1(anti-PD-1)immunotherapy is limited in patients with hepatocellular carcinoma(HCC).Yes-associated protein 1(YAP1)expression increased in liver tumor cells in early HCC,and Akkermansia muciniphila abundance decreased in the colon.The response to anti-PD-1 treatment is associated with A.muciniphila abundance in many tumors.However,the interaction between A.muciniphila abundance and YAP1 expression remains unclear in HCC.Here,anti-PD-1 treatment decreased A.muciniphila abundance in the colon,but increased YAP1 expression in the tumor cells by mice with liver tumors in situ.Mechanistically,hepatocyte-specific Yap1 knockout(Yap1^(LKO))maintained bile acid homeostasis in the liver,resulting in an increased abundance of A.muciniphila in the colon.Yap1 knockout enhanced anti-PD-1 efficacy.Therefore,YAP1 inhibition is a potential target for increasing A.muciniphila abundance to promote anti-PD-1 efficacy in liver tumors.Dihydroartemisinin(DHA),acting as YAP1 inhibitor,increased A.muciniphila abundance to sensitize anti-PD-1 therapy.A.muciniphila by gavage increased the number and activation of CD8^(+)T cells in liver tumor niches during DHA treatment or combination with anti-PD-1.Our findings suggested that the combination anti-PD-1 with DHA is an effective strategy for liver tumor treatment. | Zhiqin Zhang Xinli Shi Jingmin Ji Yinglin Guo Qing Peng Liyuan Hao Yu Xue Yiwei Liu Caige Li Junlan Lu Kun Yu | 2023 | Frontiers of Medicine2023，17，4： | 0 |
| 12 | General Method for Calculating Equivalent Disturbing Current of HVDC Transmission Lines显示文摘 | XU Zheng XU Tao XUE Yinglin | 2012 | 高电压技术2012，38，12： | 0 |
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