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| 1 | An Optimal Over-frequency Generator Tripping Strategy for Regional Power Grid with High Penetration Level of Renewable Energy显示文摘This paper proposes an optimal over-frequency generator tripping strategy aiming at implementing the least amount of generator tripping for the regional power grid with high penetration level of wind/photovoltaic(PV),to handle the over-frequency problem in the sending-end power grid under large disturbances.A steady-state frequency abnormal index is defined to measure the degrees of generator over-tripping and under-tripping,and a transient frequency abnormal index is presented to assess the system abnormal frequency effect during the transient process,which reflects the frequency security margin during the generator tripping process.The scenariobased analysis method combined with the non-parametric kernel density estimation method is applied to model the uncertainty of the outgoing power caused by the stochastic fluctuations of wind/PV power and loads.Furthermore,an improved fireworks algorithm is utilized for the solution of the proposed optimization model.Finally,the simulations are performed on a real-sized regional power grid in Southern China to verify the effectiveness and adaptability of the proposed model and method. | Zhihang Zhou Libao Shi Yixuan Chen | 2021 | Journal of Modern Power Systems and Clean Energy2021，9，5： | 2 |
| 2 | Dietary ellagic acid supplementation attenuates intestinal damage and oxidative stress by regulating gut microbiota in weanling piglets显示文摘Intestinal oxidative stress triggers gut microbiota dysbiosis,which is involved in the etiology of postweaning diarrhea and enteric infections.Ellagic acid(EA)can potentially serve as an antioxidant supplement to facilitate weaning transition by improving intestinal oxidative stress and gut microbiota dysbiosis.Therefore,we aimed to investigate the effects of dietary EA supplementation on the attenuation of intestinal damage,oxidative stress,and dysbiosis of gut microbiota in weanling piglets.A total of126 piglets were randomly assigned into 3 groups and treated with a basal diet and 2 m L saline orally(Ctrl group),or the basal diet supplemented with 0.1%EA and 2 m L saline orally(EA group),or the basal diet and 2 m L fecal microbiota suspension from the EA group orally(FEA group),respectively,for 14 d.Compared with the Ctrl group,EA group improved growth performance by increasing average daily feed intake and average daily weight gain(P<0.05)and decreasing fecal scores(P<0.05).EA group also alleviated intestinal damage by increasing the tight junction protein occludin(P<0.05),villus height,and villus height-to-crypt depth ratio(P<0.05),while decreasing intestinal epithelial apoptosis(P<0.05).Additionally,EA group enhanced the jejunum antioxidant capacity by increasing the total antioxidant capacity(P<0.01),catalase(P<0.05),and glutathione/oxidized glutathione(P<0.05),but decreased the oxidative metabolite malondialdehyde(P<0.05)compared to the Ctrl group.Compared with the Ctrl group,EA and FEA groups increased alpha diversity(P<0.05),enriched beneficial bacteria(Ruminococcaceae and Clostridium ramosum),and increased metabolites short-chain fatty acids(P<0.05).Correspondingly,FEA group gained effects comparable to those of EA group on growth performance,intestinal damage,and intestinal antioxidant capacity.In addition,the relative abundance of bacteria shifted in EA and FEA groups was significantly related to the examined indices(P<0.05).Overall,dietary EA supplementation could improve growth performance and attenuate intestinal damage and oxidative stress by regulating the gut microbiota in weanling piglets. | Wenxia Qin Baoyang Xu Yuwen Chen Wenbo Yang Yunzheng Xu Juncheng Huang Ting Duo Yihua Mao Guozong Zhou Xianghua Yan Libao Ma | 2022 | Animal Nutrition2022，，4： | 2 |
| 3 | All-in-One Deposition to Synergistically Manipulate Perovskite Growth for High-Performance Solar Cell显示文摘Nonradiative recombination losses originating from crystallographic distortions and issues occurring upon interface formation are detrimental for the photovoltaic performance of perovskite solar cells.Herein,we incorporated a series of carbamide molecules(urea,biuret,or triuret)consisting of both Lewis base(-NH2)and Lewis acid(-C=O)groups into the perovskite precursor to simultaneously eliminate the bulk and interface defects.Depending on the different coordination ability with perovskite component,the incorporated molecules can either modify crystallization dynamics allowing for large crystal growth at low temperature(60℃),associate with antisite or undercoordinated ions for defect passivation,or accumulate at the surface as an energy cascade layer to enhance charge transfer,respectively.Synergistic benefits of the above functions can be obtained by rationally optimizing additive combinations in an all-in-one deposition method.As a result,a champion efficiency of 21.6%with prolonged operational stability was achieved in an inverted MAPbI3 perovskite solar cell by combining biuret and triuret additives.The simplified all-in-one fabrication procedure,adaptable to different types of perovskites in terms of pure MAPbI3,mixed perovskite,and all-inorganic perovskite,provides a cost-efficient and reproducible way to obtain high-performance inverted perovskite solar cells. | Yifan Lv Hui Zhang Jinpei Wang Libao Chen Lifang Bian Zhongfu An Zongyao Qian Guoqi Ren Jie Wu Frank Nuesch Wei Huang | 2020 | Research2020，，1： | 2 |
| 4 | A facile ti-tanium glycolate precursor route to mesoporous Au/Li4-Ti5 O12 spheres for high-rate lithium-ion batteries 显示文摘 | Li Chengchao Li Qiuhong Chen Libao | | 0，，： | 1 |
| 5 | Nonlinear decentralized disturbance attenuation excitation control for power systems with nonlinear loads based on the Hamiltonian theory显示文摘 | HAO Jin CHEN Chen SHI Libao | 2007 | IEEE Trans on Energy Conversion2007，22，2： | 1 |
| 6 | Effect of vinylene carbonate (VC) as electrolyte additive on electrochemical per- formance of si film anode for lithium ion batteries显示文摘 | Chen Libao Wang Ke Xie Xiaohua | 2007 | Power Sources2007，174，： | 1 |
| 7 | Simulating the strong ground motion of the 2022 MS6.8 Luding,Sichuan,China Earthquake显示文摘Stochastic finite-fault simulations are effective for simulating ground motions and are widely used in engineering to determine the impacts of ground motion and develop relevant predictive equations.In this study,the source,path,and site amplification coefficient of western Sichuan Province,China,and stochastic finite-fault simulations were used to simulate the acceleration time series,Fourier amplitude spectra,and 5%damped response spectra of 28 strong-motion stations with rupture distances within 300 km of the 2022 MS6.8 Luding earthquake.The simulation results of 14 stations at rupture distances of 45-185 km match the observation.However,the simulation results of 3 near-and 6 far-field stations at rupture distances of 12-36 km and 222-286 km,respectively,were obviously deviated from the observations.Simulation results of the near-field stations are larger than the observations at high frequencies(>6 Hz).The discrepancy likely comes from the nonlinear site effect of near-field stations,which reduced the site amplification at high frequencies.Simulation result of the far-field stations is smaller than the observation at frequencies above 1 Hz.As these stations are located close to the Longmenshan Fault Zone(LFZ),thus,we obtained a new quality factor(Q)from data of historical events and stations located around LFZ.Using the new Q value,the discrepancies of the high-frequency simulation results of the far-field stations were corrected.This result indicated that the laterally varying Q values can be used to address the impact of strong crustal lateral heterogeneity on simulation. | Libao Zhang Lei Fu Aiwen Liu Su Chen | 2023 | Earthquake Science2023，36，4： | 1 |
| 8 | 3D Printing Engineered Multi-porous Cu Microelectrodes with In Situ Electro-Oxidation Growth of CuO Nanosheets for Long Cycle,High Capacity and Large Rate Supercapacitors显示文摘Developing excellent pseudocapacitive electrodes with long cycle,high areal capacity and large rate has been challenged.3 D printing is an additive manufacture technique that has been explored to construct microelectrodes of arbitrary geometries for high-energy–density supercapacitors.In comparison with conventional electrodes with uncontrollable geometries and architectures,3 D-printed electrodes possess unique advantage in geometrical shape,mechanical properties,surface area,especially in ion transport and charge transfer.Thus,a desirable 3 D electrode with ordered porous structures can be elaborately designed by 3 D printing technology for improving electrochemical capacitance and rate capability.In this work,a designed,monolithic and ordered multi-porous 3 D Cu conductive skeleton was manufactured through 3 D direct ink writing technique and coated with Cu O nanosheet arrays by an in situ electro-oxidation treatment.Benefiting from the highly ordered multiporous nature,the 3 D-structured skeleton can eff ectively enlarge the surface area,enhance the penetration of electrolyte and facilitate fast electron and ion transport.As a result,the 3 D-printed Cu deposited with electro-oxidation-generated CuO(3 DP Cu@Cu O)electrodes demonstrates an ultrahigh areal capacitance of 1.690 F cm^(-2)(38.79 F cm^(-3))at a large current density of 30 m A cm^(-2)(688.59 m A cm^(-3)),excellent lifespan of 88.20%capacitance retention after 10,000 cycles at 30 m A cm^(-2) and superior rate capability(94.31%retention,2-30 m A cm^(-2)).This design concept of 3 D printing multi-porous current collector with hierarchical active materials provides a novel way to build high-performance 3 D microelectrodes. | Tao Liu Yuejiao Chen Libao Chen | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，1： | 1 |
| 9 | Structures and defects of WO 3? x nanorods grown by in-situ heating tungsten filament显示文摘 | Huairuo Zhang Min Feng Fei Liu Libao Liu Hanyuan Chen Hongjun Gao Jianqi Li | 2004 | Chemical Physics Letters2004，，4： | 1 |
| 10 | Optimal powerflow solution incorporating wind power显示文摘 | SHI Libao WANG Chen YAO Liangzhong | 2012 | IEEE Systems Journal2012，6，2： | 1 |
| 11 | Spherical nanostructured Si/C composite prepared by spray drying technique for lithium ion batteries anode 显示文摘 | Chen Libao Xie Xiaohua Wang Baofeng | 2006 | Materials Science and Engineering B2006，131，13： | 1 |
| 12 | Optimal power flow solution incorporating wind power显示文摘 | Shi Libao Wang Chen Yao Liangzhong | 2012 | IEEE Trans on Energy Conversion2012，6，2： | 1 |
| 13 | Modelling analysis in power system small signal stability with grid-connected wind farms of DFiGtype显示文摘 | Wang Chen Shi Libao Wang Liming | 2008 | Wind Engineering2008，32，3： | 1 |
| 14 | Low-temperature preparation of ultrathin nanoflakes assembled tremella-like NiO hierarchical nanostructures for high-performance lithium-ion batteries显示文摘 | Lingling Hu Baihua Qu Libao Chen Qiuhong Li | 2013 | Materials Letters2013，，： | 1 |
| 15 | Optimal power flow solution incorporating wind power显示文摘 | Shi Libao Wang Chen Yao Liangzhong | 2012 | IEEESystems Jottmal2012，6，2： | 1 |
| 16 | Effect of vinylene carbonate (VC) as electrolyte additive on electrochemical performance of Si film anode for lithium ion batteries显示文摘 | Libao Chen Ke Wang Xiaohua Xie Jingying Xie | 2007 | Journal of Power Sources2007，，2： | 1 |
| 17 | Modelling analysis in power system small signal stability with grid-connected wind farms of DFIGtype显示文摘 | Wang Chen Shi Libao Wang Liming | 2008 | Wind Engineering2008，32，3： | 1 |
| 18 | Simple method for the preparation of highly porous ZnCo 2 O 4 nanotubes with enhanced electrochemical property for supercapacitor显示文摘 | Gang Zhou Jian Zhu Yuejiao Chen Lin Mei Xiaochuan Duan Guanhua Zhang Libao Chen Taihong Wang Bingan Lu | 2014 | Electrochimica Acta2014，，： | 1 |
| 19 | Nonlinear decentralized disturbance attenuation excitation control for power systems with nonlinear loads based on the Hamiltonian theory显示文摘 | Jin Hao Chen Chen Libao Shi | 2007 | IEEE Transactions on Energy Conversion2007，22，2： | 1 |
| 20 | Modelling analysis in power system small signal stability with grid- connected wind farms of DFIG type显示文摘 | WANG Chen SHI Libao WANG Liming | 2008 | Wind Engineering2008，32，3： | 1 |
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