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| 1 | The Wolf Colony Algorithm and Its Application显示文摘 | LIU Changan YAN Xiaohu LIU Chunyang WU Hua | 2011 | Chinese Journal of Electronics2011,20,2: | 34 |
| 2 | Hierarchical Magnetic Network Constructed by CoFe Nanoparticles Suspended Within “Tubes on Rods” Matrix Toward Enhanced Microwave Absorption显示文摘Hierarchical magnetic-dielectric composites are promising functional materials with prospective applications in microwave absorption(MA)field.Herein,a three-dimension hierarchical“nanotubes on microrods,”core–shell magnetic metal–carbon composite is rationally constructed for the first time via a fast metal–organic frameworksbased ligand exchange strategy followed by a carbonization treatment with melamine.Abundant magnetic CoFe nanoparticles are embedded within one-dimensional graphitized carbon/carbon nanotubes supported on micro-scale Mo2N rod(Mo2N@CoFe@C/CNT),constructing a special multi-dimension hierarchical MA material.Ligand exchange reaction is found to determine the formation of hierarchical magnetic-dielectric composite,which is assembled by dielectric Mo2N as core and spatially dispersed CoFe nanoparticles within C/CNTs as shell.Mo2N@CoFe@C/CNT composites exhibit superior MA performance with maximum reflection loss of−53.5 dB at 2 mm thickness and show a broad effective absorption bandwidth of 5.0 GHz.The Mo2N@CoFe@C/CNT composites hold the following advantages:(1)hierarchical core–shell structure offers plentiful of heterojunction interfaces and triggers interfacial polarization,(2)unique electronic migration/hop paths in the graphitized C/CNTs and Mo2N rod facilitate conductive loss,(3)highly dispersed magnetic CoFe nanoparticles within“tubes on rods”matrix build multi-scale magnetic coupling network and reinforce magnetic response capability,confirmed by the off-axis electron holography. | Chunyang Xu Lei Wang Xiao Li Xiang Qian Zhengchen Wu Wenbin You Ke Pei Gang Qin Qingwen Zeng Ziqi Yang Chen Jin Renchao Che | 2021 | Nano-Micro Letters2021,13,3: | 10 |
| 3 | Low-carbon generation expansion planning considering uncertainty of renewable energy at multi-time scales显示文摘With the development of carbon electricity,achieving a low-carbon economy has become a prevailing and inevitable trend.Improving low-carbon expansion generation planning is critical for carbon emission mitigation and a lowcarbon economy.In this paper,a two-layer low-carbon expansion generation planning approach considering the uncertainty of renewable energy at multiple time scales is proposed.First,renewable energy sequences considering the uncertainty in multiple time scales are generated based on the Copula function and the probability distribution of renewable energy.Second,a two-layer generation planning model considering carbon trading and carbon capture technology is established.Specifically,the upper layer model optimizes the investment decision considering the uncertainty at a monthly scale,and the lower layer one optimizes the scheduling considering the peak shaving at an hourly scale and the flexibility at a 15-minute scale.Finally,the results of different influence factors on low-carbon generation expansion planning are compared in a provincial power grid,which demonstrate the effectiveness of the proposed model. | Yuanze Mi Chunyang Liu Jinye Yang Hengxu Zhang Qiuwei Wu | 2021 | Global Energy Interconnection2021,4,3: | 9 |
| 4 | Increased Tim-3 expression alleviates liver injury by regulating macrophage activation in MCD-induced NASH mice显示文摘As an immune checkpoint,Tim-3 plays roles in the regulation of both adaptive and innate immune cells including macrophages and is greatly involved in chronic liver diseases.However,the precise roles of Tim-3 in nonalcoholic steatohepatitis(NASH)remain unstated.In the current study,we analyzed Tim-3 expression on different subpopulations of liver macrophages and further investigated the potential roles of Tim-3 on hepatic macrophages in methionine and choline-deficient diet(MCD)-induced NASH mice.The results of flow cytometry demonstrated the significantly increased expression of Tim-3 on all detected liver macrophage subsets in MCD mice,including F4/80^(+)CD11b^(+),F4/80^(+)CD68^(+),and F4/80^(+)CD169^(+)macrophages.Remarkably,Tim-3 knockout(KO)significantly accelerated MCD-induced liver steatosis,displaying higher serum ALT,larger hepatic vacuolation,more liver lipid deposition,and more severe liver fibrosis.Moreover,compared with wild-type C57BL/6 mice,Tim-3 KO MCD mice demonstrated an enhanced expression of NOX2,NLRP3,and caspase-1 p20 together with increased generation of IL-1βand IL-18 in livers.In vitro studies demonstrated that Tim-3 negatively regulated the production of reactive oxygen species(ROS)and related downstream pro-inflammatory cytokine secretion of IL-1βand IL-18 in macrophages.Exogenous administration of N-Acetyl-L-cysteine(NAC),a small molecular inhibitor of ROS,remarkably suppressed caspase-1 p20 expression and IL-1βand IL-18 production in livers of Tim-3 KO mice,thus significantly reducing the severity of steatohepatitis induced by MCD.In conclusion,Tim-3 is a promising protector in MCD-induced steatohepatitis by controlling ROS and the associated pro-inflammatory cytokine production in macrophages. | Xianhong Du Zhuanchang Wu Yong Xu Yuan Liu Wen Liu Tixiao Wang Chunyang Li Cuijuan Zhang Fan Yi Lifen Gao Xiaohong Liang Chunhong Ma | 2019 | Cellular & Molecular Immunology2019,16,11: | 9 |
| 5 | Structural insights into DndE from Escherichia coil B7A involved in DNA phosphorothioation modification显示文摘 | Wei Hu Chengkun Wang Jingdan Liang Tianlong Zhang Zhongpei Hu Zhijun Wang Wenxian Lan Fang Li Houming Wu Jianping Ding Geng Wu Zixin Deng Chunyang Cao | 2012 | Cell Research2012,22,7: | 7 |
| 6 | Study of stimulated Raman and Brillouin scattering in a finite interaction region under the convective instability condition显示文摘We discuss stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) under the convective instability condition with a one-dimensional three-wave interaction (3WI) model.Using linear theory,we deduce the temporal growth rate,gain exponent,and reflectivity of the backward scattered wave in a finite interaction region.We find that the growth rate is not only determined by the laser intensity and plasma density and temperature,but also related to the spatial gain.The length of the interaction region is important to the gain exponent and backscattering level.We simulate the developments and evolutions of SRS and SBS based on the 3WI equations.Our numerical results consist with the linear theory. | HAO Liang LIU ZhanJu ZHENG ChunYang XIANG Jiang FENG Wu HU XiaoYan LI Bin | 2012 | Chinese Science Bulletin2012,57,21: | 5 |
| 7 | Preparation, characterization and electrochemical properties of mesoporous LiFe_(0.99)Mo_(0.01)PO_4/C显示文摘A mesoporous LiFe0.99Mo0.01PO4/C composite was synthesized by the sol-gel method using (NH4)2MoO4 as a doping starting material. The formation of conductive carbon, metal doping and mesopores was achieved simultaneously in the prepared material. The characterizations of crystal structures and microstructures were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), extended X-ray-absorption fine-structure (EXAFS) and X-ray-absorption near-structure spectroscopy (XANES), while the surface area was determined using N2 adsorption techniques. Cyclic voltammetry (CV) and charge-discharge cycling performance were used to characterize its electrochemical properties. The sample possessed uniformly distributed mesopores with an average pore size of 4 nm, and the specific surface area was about 69.368 m2/g. The results show that the reversible capacity of mesoporous LiFe0.99Mo0.01PO4/C is about 160 mAh/g at 0.1C, 135 mAh/g at 1C and 90 mAh/g at 5C, respectively. The capacity fading is neglectable. | YU Chunyang WANG Zhongli CHEN Yu XIA Dingguo CHU Wangsheng WU Ziyuc | 2009 | Rare Metals2009,28,4: | 4 |
| 8 | Short-pulsed Raman fiber laser and its dynamics显示文摘We provide a perspective review over the recent development of short-pulsed Raman fiber lasers(RFLs),which can provide laser emissions with flexible wavelengths for a variety of applications as well as an excellent platform to investigate various nonlinear pulse dynamics behaviors that cannot be captured in conventional rare-earth(RE)doped counterparts.Various pulse generation techniques have been explored in RFLs.However,the output pulse performance in terms of the pulse energy,duration and stability from short-pulsed RFLs is still inferior to their RE-doped counterparts despite significant advances made over the past few decades.Therefore,more efforts are required to improve these targets.In this review,we present a detailed overview of the short-pulsed RFLs based on different mechanisms from the principle to the experiment,including the Q-switching,gainswitching,mode-locking,synchronous pumping and other innovative techniques.In addition,Raman-induced pulse dynamics in ultrafast RFLs and RE-doped mode-locked fiber lasers(MLFLs)are briefly reviewed.Finally,a perspective outlook for the future ultrafast RFLs is provided based on their potential applications in industrial and scientific research areas. | Jun Liu Jiadong Wu Hualong Chen Yu Chen Zhenhong Wang Chunyang Ma Han Zhang | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,1: | 4 |
| 9 | Disaster Risk Science:A Geographical Perspective and a Research Framework显示文摘In this article,we recall the United Nations’30-year journey in disaster risk reduction strategy and framework,review the latest progress and key scientific and technological questions related to the United Nations disaster risk reduction initiatives,and summarize the framework and contents of disaster risk science research.The object of disaster risk science research is the'disaster system'consisting of hazard,the geographical environment,and exposed units,with features of regionality,interconnectedness,coupling,and complexity.Environmental stability,hazard threat,and socioeconomic vulnerability together determine the way that disasters are formed,establish the spatial extent of disaster impact,and generate the scale of losses.In the formation of a disaster,a conducive environment is the prerequisite,a hazard is the necessary condition,and socioeconomic exposure is the sufficient condition.The geographical environment affects local hazard intensity and therefore can change the pattern of loss distribution.Regional multi-hazard,disaster chain,and disaster compound could induce complex impacts,amplifying or attenuating hazard intensity and changing the scope of affected areas.In the light of research progress,particularly in the context of China,we propose a threelayer disaster risk science disciplinary structure,which contains three pillars(disaster science,disaster technology,and disaster governance),nine core areas,and 27 research fields.Based on these elements,we discuss the frontiers in disaster risk science research. | Peijun Shi Tao Ye Ying Wang Tao Zhou Wei Xu Juan Du Jing'ai Wang Ning Li Chongfu Huang Lianyou Liu Bo Chen Yun Su Weihua Fang Ming Wang Xiaobin Hu Jidong Wu Chunyang He Qiang Zhang Qian Ye Carlo Jaeger Norio Okada | 2020 | International Journal of Disaster Risk Science2020,11,4: | 4 |
| 10 | In-situ One-pot Preparation of LiFePO_4/Carbon-Nanofibers Composites and Their Electrochemical Performance显示文摘A novel in-situ route was employed to synthesize LiFePO4/carbon-nanofibers (CNFs) composites. The route combined high-temperature solid phase reaction with chemical vapor deposition (CVD) using Fe2O3 and LiH2PO4 as the precursors for LiFePO4 growth and acetylene (C2H2) as the carbon source for CNFs growth. The composites were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area, field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). The electrochemical performance of the composites was studied by galvanostatic cycling and cyclic voltammetry (CV). The results showed that the in-situ CNFs growth could be realized by the catalytic effect of the Fe2O3 precursor. The sample after 80 min CVD reaction showed the best electrochemical performance, indicating a promising application in high-power Li-ion batteries. | Jiaohui Zhang Jian Xie Chunyang Wu Gaoshao Cao Xinbing Zhao | 2011 | Journal of Materials Science & Technology2011,27,11: | 3 |
| 11 | Hollow Co_9S_8 from metal organic framework supported on rGO as electrode material for highly stable supercapacitors显示文摘Metal sulfides as a feasible candidate with high specific capacitance for supercapacitors suffer from sluggish ion/electron transport kinetics and rapid capacitance fading. Herein, we demonstrate a method to fabricate a composite of reduced graphene oxide(rGO) with hollow Co_9S_8 derived from metal organic framework(MOF). Due to the combined highly conductive rGO substrates and hollow shell, the prepared r GO/Co_9S_8 composite exhibits a high specific capacitance of 575.9 F/g at 2 A/g and 92.0% capacitance retention after 9000 cycles. Its excellent electrochemical performance provides great promise for application, and this versatile method can be extended to prepare other similar nanocomposite. | Peng Wang Chunyang Li Weigang Wang Jing Wang Yusong Zhu Yuping Wu | 2018 | Chinese Chemical Letters2018,29,4: | 3 |
| 12 | Hepatitis B virus evades immune recognition via RNA adenosine deaminase ADAR1-mediated viral RNA editing in hepatocytes显示文摘HBV is considered as a“stealth”virus that does not invoke interferon(IFN)responses;however,the mechanisms by which HBV bypasses innate immune recognition are poorly understood.In this study,we identified adenosine deaminases acting on RNA 1(ADAR1),which is a key factor in HBV evasion from IFN responses in hepatocytes.Mechanically,ADAR1 interacted with HBV RNAs and deaminated adenosine(A)to generate inosine(I),which disrupted host immune recognition and thus promoted HBV replication.Loss of ADAR1 or its deficient deaminase activity promoted IFN responses and inhibited HBV replication in hepatocytes,and blocking the IFN signaling pathways released the inhibition of HBV replication caused by ADAR1 deficiency.Notably,the HBV X protein(HBx)transcriptionally promoted ADAR1 expression to increase the threshold required to trigger intrinsic immune activation,which in turn enhanced HBV escape from immune recognition,leading to persistent infection.Supplementation with 8-azaadenosine,an ADAR1 inhibitor,efficiently enhanced liver immune activation to promote HBV clearance in vivo and in vitro.Taken together,our results delineate a molecular mechanism by which HBx promotes ADAR1-derived HBV immune escape and suggest a targeted therapeutic intervention for HBV infection. | Liyuan Wang Yang Sun Xiaojia Song Zehua Wang Yankun Zhang Ying Zhao Xueqi Peng Xiaodong Zhang Chunyang Li Chengjiang Gao Nailin Li Lifen Gao Xiaohong Liang Zhuanchang Wu Chunhong Ma | 2021 | Cellular & Molecular Immunology2021,18,8: | 2 |
| 13 | Experimental and Numerical Analysis of High-Strength Concrete Beams Including Steel Fibers and Large-Particle Recycled Coarse Aggregates显示文摘In order to study the performances of high-strength concrete beams including steel fibers and large-particle recycled aggregates,four different beams have been designed,tested experimentally and simulated numerically.As varying parameters,the replacement rates of recycled coarse aggregates and CFRP(carbon fiber reinforced polymer)sheets have been considered.The failure mode of these beams,related load deflection curves,stirrup strain and shear capacity have been determined through monotonic loading tests.The simulations have been conducted using the ABAQUS finite element software.The results show that the shear failure mode of recycled concrete beams is similar to that of ordinary concrete beams.The shear carrying capacity of high-strength concrete beams including steel fibers and large-particle recycled coarse aggregates grows with an increase in the replacement rate of recycled coarse aggregates.Reinforcement with CFRP sheets can significantly improve the beam’s shear carrying capacity and overall resistance to deformation. | Chunyang Liu Yangyang Wu Yingqi Gao Zhenyun Tang | 2021 | Fluid Dynamics & Materials Processing2021,17,5: | 2 |
| 14 | A dual-functional poly(vinyl alcohol)/poly(lithium acrylate)composite nanofiber separator for ionic shielding of polysulfides enables high-rate and ultra-stable Li-S batteries显示文摘Despite the high theoretical specific capacity,the main challenges of rechargeable lithium-sulfur(Li-S)batteries,including the unceasing shuttle of soluble lithium polysulfides(LiPSs)and severe Li corrosion,seriously hinder their commercial and practical applications.Herein,a bifunctional polyvinyl alcohol/poly(lithium acrylate)(C-PVA/PAA-Li)composite nanofiber separator is developed to address the main challenges in Li-S batteries by simultaneously allowing rapid lithium ion transport and ionic shielding of polysulfides.The C-PVA/PAA-Li composite nanofiber membrane is prepared via the facile electrospinning strategy,followed by thermal crosslinking and in-situ lithiation processes.Differing from the conventional Celgard-based coating methods accompanied by impaired lithium ion transport efficiency,the C-PVA/PAA-Li composite nanofiber membrane possesses well-developed porous structures and high ionic conductivity,thus synergistically reducing the charge transfer resistance and inhibiting the growth of lithium dendrites.The resulting Li-S batteries exhibit an ultra-low fading rate of 0.08%per cycle after 400 cycles at 0.2 C,and a capacity of 633 mAhg−1 at a high current density of 3 C.This study presents an inspiring and promising strategy to fabricate emerging dual-functional separators,which paves the pathway for the practical implementation of ultra-stable and reliable Li-S battery systems. | Chunyang Zhou Jing Wang Xiaobo Zhu Kai Chen Yue Ouyang Yue Wu Yue-E Miao Tianxi Liu | 2021 | Nano Research2021,14,5: | 2 |
| 15 | Highly conductive polymer nanocomposites for emerging high voltage power cable shields:experiment,simulation and applications显示文摘High voltage power cables play a critical role in global electricity transmission and distribution.The currently used power cables cannot fulfil the green and sustainable requirement of modern society because of the thermoset nature of cable insulation and shields.This study is aimed at developing thermoplastic shields for high voltage power cable,which is one bottleneck restricting the development of environmental-friendly cables.Using carbon black(CB)as the main conductive component and a small amount of carbon nanotubes(CNTs)or graphene as the second filler,highly conductive polypropylene based composite materials were prepared for potential shield applications.It was found that,at a fixed conductive filler loading,the replacement of a small amount CB by CNTs can significantly enhance the electrical conductivity and suppress its temperature dependence.However,when CB was replaced by graphene,only limited enhancement of electrical conductivity could be achieved and the electrical conductivity is still highly dependent on temperature.Dissipative particle dynamics simulations demonstrated that the enhanced conduction property in the CNTs-containing composites could be understood by the shorter average distance between CB and CNTs.Finally,the coordination between the newly developed conductive composites and the environmental-friendly thermoplastic polypropylene insulation was evaluated via high voltage direct current measurements,and the results revealed that the CNTs-containing composites showed excellent suppression effect on the space charge injection and accumulation in the insulation.This research paved a new way for developing environmental-friendly high voltage power cable shields. | Xingyi Huang Boyang Sun Chunyang Yu Jiandong Wu Jun Zhang Pingkai Jiang | 2020 | High Voltage2020,5,4: | 2 |
| 16 | Political connections, tax benefits and firm performance: Evidence from China显示文摘 | Wenfeng Wu Chongfeng Wu Chunyang Zhou Jun Wu | 2011 | Journal of Accounting and Public Policy2011,,3: | 2 |
| 17 | High-loading single cobalt atoms on ultrathin MOF nanosheets for efficient photocatalytic CO_(2) reduction显示文摘Based on suitable scaffolds,constructing high-loading single-atom catalysts is a promising strategy to achieve highly efficient catalysis.Herein,using ultrathin metal-organic framework(MOF)nanosheets(2.4±0.5 nm)as the support,single-atom catalysts with high cobalt loading(6.0 wt%)were constructed(denoted as Co-MNSs)by a simple bottom-up synthetic strategy.The catalytic system of Co-MNSs exhibited an outstanding photocatalytic CO_(2)-to-CO evolution rate of 7,041μmol g^(-1)h^(-1)and a selectivity of 86%in aqueous media under visible-light irradiation,which has reached the top level of the reported MOF-based photocatalysts.The control experiments and theoretical calculation revealed that the Co-N_(4)moiety in the MOF nanosheets acted as the active site for the photocatalytic CO_(2)-to-CO conversion.The boosted photocatalytic performance could be ascribed to the high aspect-ratio of layered Co-MNSs providing abundant accessible active sites on their surfaces,which reduced the energy barrier,improved the charge separation efficiency,and also facilitated the adsorption of CO_(2)to form the reactive radicals of*COOH.Our study provides an appealing strategy for constructing high-loading single-atom catalysts and demonstrates the significance of 2D ultrathin MOF nanosheets as the support in boosting CO_(2)photoreduction efficiency. | Quan Zuo Rui Cui Lei Wang Yuling Wang Chunyang Yu Liang Wu Yiyong Mai Yongfeng Zhou | 2023 | Science China Chemistry2023,66,2: | 2 |
| 18 | Preparation of Nano-structured LiFe_xMn_(1-x)PO_4(x=0,0.2,0.4) by Reflux Method and Research on the Influences of Fe(Ⅱ) Substitution显示文摘Nano structured LiFexMn1-xPO4(x=0,0.2,0.4) materials were successfully prepared by one-step reflux method in a water/PEG400 mixed solvent, and were coated by carbon using glucose as the precursor. The materials were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The electrochemical properties of the materials were investigated by galvanostatic cycling, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). It was found that the materials consisted of nanorods with a diameter of 50 nm and a length of 500 nm. Galvanostatic cycling showed that the capacity of LiMnPO 4 could be largely increased by Fe2+ substitution. At a current rate of C/20, the capacity of the three samples (x=0,0.2,0.4) were 47, 107 and 150 mA·h·g-1 , respectively. CV result showed that the Fe2+ substitution could decrease the polarization during charging/discharging, accelerating the electrochemical process. EIS result showed that the Fe2+ substitution could decrease the charge transfer resistance between the electrode and electrolyte, | Zhao Yang Hongming Yu Chunyang Wu Gaoshao Cao Jian Xie Xinbing Zhao | 2012 | Journal of Materials Science & Technology2012,28,9: | 2 |
| 19 | Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient显示文摘 | Chunyang Li Chengchun Wu Baoli Duan Helena Korpelainen Olavi Luukkanen | 2009 | Trees2009,,5: | 1 |
| 20 | The role of the IRE1 pathway in PBDE-47-induced toxicity in human neuroblastoma SH-SY5Y cells in vitro显示文摘 | Chunyang Jiang Shun Zhang Hongliang Liu Qiang Zeng Tao Xia Yihu Chen Gang Kuang Guodong Zhao Xue Wu Xiaofei Zhang Aiguo Wang | 2012 | Toxicology Letters2012,,3: | 1 |