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| 1 | Coordinated optimal dispatch and market equilibrium of integrated electric power and natural gas networks with P2G embedded显示文摘As power to gas(P2 G) technology gradually matures, the coupling between electricity networks and natural gas networks should ideally evolve synergistically.With the intent of characterizing market behaviors of integrated electric power and natural gas networks(IPGNs)with P2 G facilities, this paper establishes a steady-state model of P2 G and constructs optimal dispatch models of an electricity network and a natural gas network separately. In addition, a concept of slack energy flow(SEF) is proposed as a tool for coordinated optimal dispatch between the two networks. To study how the market pricing mechanism affects coordinated optimal dispatch in an IPGN, a market equilibrium-solving model for an IPGN is constructed according to game theory, with a solution based on the Nikaido-Isoda function. Case studies are conducted on a joint model that combines the modified IEEE 118-node electricity network and the Belgian 20-node gas network.The results show that if the game between an electric power company and a natural gas company reaches market equilibrium, not only can both companies maximize their profits, but also the coordinated operation of the coupling units, i.e., gas turbines and P2 G facilities, will contribute more to renewable energy utilization and carbon emission reduction. | Zexing CHEN Yongjun ZHANG Tianyao JI Zexiang CAI Licheng LI Zhiheng XU | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，3： | 37 |
| 2 | Carbon dioxide capture using polyethylenimine-loaded mesoporous carbons显示文摘A high efficiency sorbent for CO2 capture was developed by loading polyethylenimine (PEI) on mesoporous carbons which possessed well-developed mesoporous structures and large pore volume. The physicochemical properties of the sorbent were characterized by N2 adsorption/desorption, scanning electron microscopy (SEM), thermal gravimetric analysis (TG) and Fourier transform infrared spectroscopy (FT-IR) techniques followed by testing for CO2 capture. Factors that affected the sorption capacity of the sorbent were studied. The sorbent exhibited extraordinary capture capacity with CO2 concentration ranging from 5% to 80%. The optimal PEI loading was determined to be 65 wt.% with a CO2 sorption capacity of 4.82 mmol-CO2 /g-sorbent in 15% CO2 /N2 at 75°C, owing to low mass-transfer resistance and a high utilization ratio of the amine compound (63%). Moisture had a promoting effect on the sorption separation of CO2 . In addition, the developed sorbent could be regenerated easily at 100°C, and it exhibited excellent regenerability and stability. These results indicate that this PEI-loaded mesoporous carbon sorbent should have a good potential for CO2 capture in the future. | Jitong Wang Huichao Chen Huanhuan Zhou Xiaojun Liu Wenming Qiao Donghui Long Licheng Ling | 2013 | Journal of Environmental Sciences2013，25，1： | 9 |
| 3 | Heterogeneous parallel computing accelerated iterative subpixel digital image correlation显示文摘Parallel computing techniques have been introduced into digital image correlation(DIC) in recent years and leads to a surge in computation speed. The graphics processing unit(GPU)-based parallel computing demonstrated a surprising effect on accelerating the iterative subpixel DIC, compared with CPU-based parallel computing. In this paper, the performances of the two kinds of parallel computing techniques are compared for the previously proposed path-independent DIC method, in which the initial guess for the inverse compositional Gauss-Newton(IC-GN) algorithm at each point of interest(POI) is estimated through the fast Fourier transform-based cross-correlation(FFT-CC) algorithm. Based on the performance evaluation, a heterogeneous parallel computing(HPC) model is proposed with hybrid mode of parallelisms in order to combine the computing power of GPU and multicore CPU. A scheme of trial computation test is developed to optimize the configuration of the HPC model on a specific computer. The proposed HPC model shows excellent performance on a middle-end desktop computer for real-time subpixel DIC with high resolution of more than 10000 POIs per frame. | HUANG JianWen ZHANG LingQi JIANG ZhenYu DONG ShouBin CHEN Wei LIU YiPing LIU ZeJia ZHOU LiCheng TANG LiQun | 2018 | Science China(Technological Sciences)2018，61，1： | 9 |
| 4 | Skeleton-vasculature chain reaction: a novel insight into the mystery of homeostasis显示文摘Angiogenesis and osteogenesis are coupled.However,the cellular and molecular regulation of these processes remains to be further investigated.Both tissues have recently been recognized as endocrine organs,which has stimulated research interest in the screening and functional identification of novel paracrine factors from both tissues.This review aims to elaborate on the novelty and significance of endocrine regulatory loops between bone and the vasculature.In addition,research progress related to the bone vasculature,vessel-related skeletal diseases,pathological conditions,and angiogenesis-targeted therapeutic strategies are also summarized.With respect to future perspectives,new techniques such as single-cell sequencing,which can be used to show the cellular diversity and plasticity of both tissues,are facilitating progress in this field.Moreover,extracellular vesicle-mediated nuclear acid communication deserves further investigation.In conclusion,a deeper understanding of the cellular and molecular regulation of angiogenesis and osteogenesis coupling may offer an opportunity to identify new therapeutic targets. | Ming Chen Yi Li Xiang Huang Ya Gu Shang Li Pengbin Yin Licheng Zhang Peifu Tang | 2021 | Bone Research2021，9，3： | 6 |
| 5 | A comparative study of hydrothermal aging effect on cerium and lanthanum doped Cu/SSZ-13 catalysts for NH_(3)-SCR显示文摘Ce-or La-doped Cu/SSZ-13 catalysts were prepared by a hydrothermal method and Cu,Ce or La ions were incorporated through stepwise ion exchange,The catalyst activity was measured for the ammonia selective catalytic reduction reaction.The structure and composition of catalyst were characterized by using X-ray diffraction,scanning electron microscopy,inductively coupled plasma mass spectrometry solid-state NMR,NH_(3)-TPD techniques,and the active components were examined by XPS and XANES.The results indicate that the Ce and La doping can both completely preserve the SCR activity of Cu/SSZ-13 above 300℃,but there is also a decrease of activity below 200℃.On the other hand,Ce doping is beneficial to the formation of framework aluminum,stabilizes molecular sieve framework and Cu active sites of Cu/SSZ-13,thereby improves the catalyst hydrothermal stability.But La doping will decrease the amount of framework aluminum and Cu active sites of Cu/SSZ-13 after hydrothermally aging,even destroy zeolite CHA structure.This is quite harmful to the catalyst hydrothermal stability. | Di Deng Shujun Deng Dandan He Zhiheng Wang Zhipeng Chen Yi Ji Guoping Yan Guangjin Hou Licheng Liu Hong He | 2021 | Journal of Rare Earths2021，39，8： | 5 |
| 6 | Reducing Energy Loss and Morphology Optimization Manipulated by Molecular Geometry Engineering for Hetero-junction Organic Solar Cells显示文摘of main observation and conclusion Molecular geometry engineering is an efective strategy to control the micromorphology and molecularenergy level in organic photovoltaics(OPVs).Two novel copolymers based on alkysilyl-and chloride-functionalied benzodithiophene(BDT)were designed and synthesized for wide bandgap copolymer donor materials in OPVs.It was found that the two copolymers exhited distinctly different proper-ties in active layer when blended with fulerene-fre acceptor T-4.The chloride-functionalited copolymer PBDTCI-TZ2 with deeper molecular energy leveland better coplanar structure induced more ordered aggregation in blend flm.Thus,the device based on PBDTC-TZ exhibits better energy alinmentwith IT-4F and smallr radiative recombination.furthermore,the non-radiative recombination of PBDTCI-TZ.T-4F based device is about 45 mV lowerthan the PBDTS-TZ/T-4F based device,contributing to a lower enery loss(Ein,and a higher open-cicut voltage(Vc).As a resut,the devices based onthe blend of PBDTC-TZ2.IT-4F exhibit a high power conversion efficiency(PCE)of up to 12.2%with a high Vvoe of 0.837 Vv,higher than that of PBDTSi-TZ:IT-4F,of which the PCE is 11.2%with a Voc of 0.781V. | Guodong Xu Huan Rao Xunfan Liao Youdi Zhang Yuming Wang Zhi Xing Ting Hu Licheng Tan Lie Chen Yiwang Chen | 2020 | Chinese Journal of Chemistry2020，38，12： | 4 |
| 7 | Processes Leading to Second-Year Cooling of the 2010–12 La Ni?a Event,Diagnosed Using GODAS显示文摘Isopycnal analyses were performed on the Global Ocean Data Assimilation System(GODAS) to determine the oceanic processes leading to so-called second-year cooling of the La Nina event. In 2010–12, a horseshoe-like pattern was seen,connecting negative temperature anomalies off and on the Equator, with a dominant influence from the South Pacific. During the 2010 La Nina event, warm waters piled up at subsurface depths in the western tropical Pacific. Beginning in early 2011,these warm subsurface anomalies propagated along the Equator toward the eastern basin, acting to reverse the sign of sea surface temperature(SST) anomalies(SSTAs) there and initiate a warm SSTA. However, throughout early 2011, pronounced negative anomalies persisted off the Equator in the subsurface depths of the South Pacific. As isopycnal surfaces outcropped in the central equatorial Pacific, negative anomalies from the subsurface spread upward along with mean circulation pathways, naturally initializing a cold SSTA. In the summer, a cold SSTA reappeared in the central basin, which subsequently strengthened due to the off-equatorial effects mostly in the South Pacific. These SSTAs acted to initiate local coupled air–sea interactions, generating atmospheric–oceanic anomalies that developed and evolved with the second-year cooling in the fall of 2011. However, the cooling tendency in mid-2012 did not develop into another La Nina event, since the cold anomalies in the South Pacific were not strong enough. An analysis of the 2007–09 La Nina event revealed similar processes to the2010–12 La Nina event. | FENG Licheng ZHANG Rong-Hua WANG Zhanggui CHEN Xingrong | 2015 | Advances in Atmospheric Sciences2015，32，3： | 3 |
| 8 | Broadband quasi-phase matching in a MgO:PPLN thin film显示文摘Future quantum information networks operated on telecom channels require qubit transfer between different wavelengths while preserving quantum coherence and entanglement. Qubit transfer is a nonlinear optical process,but currently the types of atoms used for quantum information processing and storage are limited by the narrow bandwidth of upconversion available. Here we present the first experimental demonstration of broadband and high-efficiency quasi-phase matching second-harmonic generation(SHG) in a chip-scale periodically poled lithium niobate thin film. We achieve a large bandwidth of up to 2 THz for SHG by satisfying quasi-phase matching and group-velocity matching simultaneously. Furthermore, by changing the film thickness, the central wavelength of the quasi-phase matching SHG bandwidth can be modulated from 2.70 μm to 1.44 μm. The reconfigurable quasi-phase matching lithium niobate thin film provides a significant on-chip integrated platform for photonics and quantum optics. | LICHENG GE YUPING CHEN HAOWEI JIANG GUANGZHEN LI BING ZHU YI'AN LIU XIANFENG CHEN | 2018 | Photonics Research2018，6，10： | 3 |
| 9 | The 2020–2021 prolonged La Niña evolution in the tropical Pacific显示文摘The evolution of sea surface temperature(SST)in the tropical Pacific during 2020–2021 indicates a second-year cooling in late 2021 again,following the 2020 La Niña event.Its physical explanations are still lacking,and there is a clear need to understand the underlying processes involved.Observational data and reanalysis products are used to describe the characteristics and spatiotemporal evolution of upper-ocean thermal anomalies;an intermediate coupled model(ICM)is also used to perform numerical experiments to confirm these observation-based inferences.The evolution of subsurface thermal anomalies is critically important to that of SST in the central-eastern equatorial Pacific;the effects of the former on the latter can be well represented by the temperature of subsurface waters entrained into the mixed layer(Te),a field that reflects a subsurface forcing on SST.The SST evolution is sensitively dependent on the intensities of the local effect associated with Te anomalies in the eastern equatorial Pacific and the remote effect associated with subsurface anomalies from the western Pacific.During early-and mid-2021,a competition was present between these local and remote effects associated with Te anomalies.When the remote warming effect dominates the local cooling effect,the cold SST condition in the east is likely to turn into neutral and warm conditions;otherwise,it tends to continue.In addition,the negative Te anomalies were sustained and enhanced by off-equatorial processes due to equatorial wave reflections at the eastern boundary associated with the 2020 La Niña event.The SST evolution in mid-2021 corresponded to a situation in which the warming effect associated with positive subsurface thermal anomalies from the west were not strong enough to counteract the local cooling effect associated with negative anomalies in the east.In due course,cold SST anomalies in the east developed again and the second-year cooling reoccurred in late 2021,with a turning point in June 2021.Modeling experiments support these arguments and indicate that the intensity of subsurface thermal effect on SST,as represented by Te anomalies,needs to be adequately depicted for coupled models to capture the 2021 second-year cooling conditions in the tropical Pacific. | Chuan GAO Maonan CHEN Lu ZHOU Licheng FENG Rong-Hua ZHANG | 2022 | Science China Earth Sciences2022，65，12： | 3 |
| 10 | Application of Pore Evolution and Fracture Development Coupled Models in the Prediction of Reservoir 'Sweet Spots' in Tight Sandstones显示文摘<正>The Chang-6~3 reservoir in the Huaqing area has widely developed tight sandstone reservoirs characterized by'thick sand layers,but not rich in oil',and it is thus necessary to further study its oil and gas enrichment law.This study builds porosity and fracture development | ZHANG Linyan ZHUO Xizhun MA Licheng CHEN Xiaoshuai SONG Licai ZHOU Xingui | 2015 | Acta Geologica Sinica(English Edition)2015，89，3： | 3 |
| 11 | Core-shell structured 1,4-benzoquinone@TiO_2 cathode for lithium batteries显示文摘Organic carbonyl compounds are considered as promising candidates for lithium batteries due to their high capacity and environmental friendliness. However, they suffer from serious dissolution in the electrolyte, leading to fast capacity decay. Here we report core-shell structured 1,4-benzoquinone@titanium dioxide(BQ@TiO_2) composite as cathode for lithium batteries. The composite cathode can deliver a high discharge capacity of 441.2 mA h/g at 50 m A/g and a high capacity retention of 80.7% after 100 cycles. The good cycling performance of BQ@TiO_2 composite can be attributed to the suppressed dissolution of BQ,which results from the physical confinement effect of TiO_2 shell and the strong interactions between BQ and TiO_2. Moreover, the combination of ex situ infrared spectra and density functional theory calculations reveals that the active redox sites of BQ are carbonyl groups. This work provides an alternative way to mitigate the dissolution of small carbonyl compounds and thus enhance their cycling stability. | Aikai Yang Xingchao Wang Yong Lu Licheng Miao Wei Xie Jun Chen | 2018 | Journal of Energy Chemistry2018，27，6： | 2 |
| 12 | Systematic reviews on reports of hip fractures in Web of Science:a bibliometric analysis of publication activity显示文摘 | Mao Zhi Wang Guoqi Mei Xifan Chen Shuo Liu Xiaoxie Zeng Xiantao Long Anhua Zhang Licheng Zhang Lihai Tang Peifu | 2014 | Chinese Medical Journal2014，，13： | 2 |
| 13 | Thermodynamic Stability of LiFeO_2 in Molten Carbonate Fuel Cell显示文摘LiFeO2, as one of candidate cathode materials or additive for molten carbonate fuel cell, has been found to be thermodynamically unstable in CO2 atmosphere at 650℃ (the condition of molten carbonate fuel cell) both by computation and experimental confirmation. | Licheng YAN, Wencong LU, Yimin DING, Jianhui MNG and Nianyi CHEN (Department of Chemistry, Shanghai University, Shanghai 201800, China) Guangyi CAO and Jianxin ZHU (Instate of Fuel Cell Technology, Jiaotong University, Shanghai 200030, China) | 2000 | Journal of Materials Science & Technology2000，16，1： | 2 |
| 14 | Effective femtosecond laser shock peening on a Mg-3Gd alloy at low pulse energy 430 μJ of 1 kHz显示文摘In this paper,microstructure evolution and hardness of Mg-3 Gd alloy treated by femtosecond(fs)laser shock peening(LSP)with direct and confined ablation m odes were investigated in detail.Under a relatively low pulse energy of 430μJ with a repetition of 1 kHz,the surface hardness of sample has been enhanced by 70%effectively.Comp a r e d with ns-LSP with pulse fluence of 71.7J/cm2,fs-LSP with pulse fluence of 34.2 J/cm2 is superior in the hardness increment,both of which are in the same order of magnitude.A distinct grain refinement of surface layer has been discovered and results in the increase of hardness.Nonuse of absorption and confining layers and the employment of the industry commercial fs laser with high repetition can inspire big potential L S P application in special metal material.©2019 Published by Elsevier B.V.on behalf of Chongqing University. | Chenghao Lu Licheng Ge Bing Zhu Yangxin Li Xianfeng Chen Xiaoqin Zeng Yuping Chen | 2019 | Journal of Magnesium and Alloys2019，7，3： | 2 |
| 15 | Will the Historic Southeasterly Wind over the Equatorial Pacific in March 2022 Trigger a Third-year La Niña Event?显示文摘Based on the updates of the Climate Prediction Center and International Research Institute for Climate and Society(CPC/IRI)and the China Multi-Model Ensemble(CMME)El Niño-Southern Oscillation(ENSO)Outlook issued in April 2022,La Niña is favored to continue through the boreal summer and fall,indicating a high possibility of a three-year La Niña(2020-23).It would be the first three-year La Niña since the 1998-2001 event,which is the only observed three-year La Niña event since 1980.By examining the status of air-sea fields over the tropical Pacific in March 2022,it can be seen that while the thermocline depths were near average,the southeasterly wind stress was at its strongest since 1980.Here,based on a quaternary linear regression model that includes various relevant air-sea variables over the equatorial Pacific in March,we argue that the historic southeasterly winds over the equatorial Pacific are favorable for the emergence of the third-year La Niña,and both the anomalous easterly and southerly wind stress components are important and contribute~50%of the third-year La Niña growth,respectively.Additionally,the possible global climate impacts of this event are discussed. | Xianghui FANG Fei ZHENG Kexin LI Zeng-Zhen HU Hongli REN Jie WU Xingrong CHEN Weiren LAN Yuan YUAN Licheng FENG Qifa CAI Jiang ZHU | 2023 | Advances in Atmospheric Sciences2023，40，1： | 2 |
| 16 | The Late Cretaceous source-to-sink system at the eastern margin of the Tibetan Plateau:Insights from the provenance of the Lanping Basin显示文摘The surface uplift of the Tibetan Plateau(TP)and its geomorphology evolution has triggered aridification of Asia's interior and drainage development at the eastern margin of the plateau.However,how the pre-Cenozoic early growth histories of the TP impact the drainage system and climate is poorly constrained.The Late Mesozoic Lacustrine evaporite-bearing basins on the eastern margin of the TP record significant information on the uplift of the source terranes,source-to-sink system development and climate change.In this study,we presented detrital zircon U-Pb ages from the Upper Cretaceous Yunlong Formation in the Lanping Basin,as well as Hf isotopic,petrographic,direct statistical,and multidimensional scaling analyses,and use them to characterize the provenance and reconstruct the drainage system.All of the samples have five major age peaks at 200-290 Ma,400-490 Ma,750-1000 Ma,1750-1950 Ma,and 2400-2600 Ma with mostly negativeε_(Hf)(t)values(81%).We infer the sediments are primarily derived from recycled sediments of the Songpan-Garze terrane,and partly from the Sichuan Basin and the Southern Qiangtang terrane,as well as the exposed magmatic rocks of the Yidun Arc and SongpanGarze terrane.The provenance features of the contemporaneous sediments from the Sichuan,Xichang,Chuxiong,and Simao basins indicate a complex hierarchical drainage pattern on the eastern margin of the TP during the Late Cretaceous.The hierarchical drainage system exhibits a complete gradational cycle of lake-basin types from overfilled freshwater Sichuan Basin through balanced fill saline Xichang Basin and underfilled hypersaline Chuxiong,Lanping,Simao,and Khorat Plateau basins from proximal to distal.The early growth of the TP primarily controlled the drainage and lake-basin evolution by not only causing the uplift and exhumation of the source areas and providing large amounts of clastic material to the proximal sub-drainage areas but also intensifying the aridity and deposition of evaporites. | Licheng Wang Lijian Shen Chenglin Liu Ke Chen Lin Ding Chengshan Wang | 2021 | Geoscience Frontiers2021，12，3： | 2 |
| 17 | Highly stable Al-doped ZnO by ligand-free synthesis as general thickness-insensitive interlayers for organic solar cells显示文摘Highly conductive and dispersible Al-doped ZnO(AZO) nanoparticles(NPs) have been successfully prepared by ligand-free colloidal synthesis at low temperature and stabilization by surfactant-aid including ethanolamine(EA), ethylenediamine(EDA),diethylenetriamine(DETA) and triethylenetetramine(TETA). Due to the strong intermolecular hydrogen-bonding interactions between AZO NPs and the amino groups from surfactants, the inevitable aggregation was suppressed and the surface defect sites were passivated obviously. The existence of electron transfer from the nitrogen of the amino groups to the zinc of AZO,led to a dramatic increase in electrical conductivity. A homogeneous current intensity value up to ~2200 pA for AZO tread by DETA was characterized by conductive atomic force microscopy(C-AFM), which was more superior than that of the reported sol-gel synthesized AZO with the assistance of EA surfactant(refer to 170.7 pA). Furthermore, non-fullerenes solar cells based on PBDB-T:ITIC with AZO-DETA(80 nm) yielded a best device efficiency of 10.7% and kept up prominent PCE exceeding 10%even with more thicker interlayer(95 nm). | Yilin Wang Zhongyou Peng Shuqin Xiao Jia Yang Huanyu Zhou Liqiang Huang Lulu Sun Yinhua Zhou Licheng Tan Yiwang Chen | 2018 | Science China Chemistry2018，61，1： | 2 |
| 18 | A non-wetting and conductive polyethylene dioxothiophene hole transport layer for scalable and flexible perovskite solar cells显示文摘The regulated crystallization of perovskite and highly repeatable preparation are decisive challenges for large-scale flexible perovskite solar cells(PSCs).Herein,we synthesize an oil-soluble poly(3,4-ethylenedioxythiophene)(Oil-PEDOT)as a hole transport layer(HTL).The non-wetting Oil-PEDOT HTL can promote the quality of large-area flexible perovskite films because of its optimized crystallinity and printability.The Oil-PEDOT layer also delivers desirable conductivity and charge transport without a complex doping.Consequently,the flexible PSCs with Oil-PEDOT HTL achieve an efficiency of 19.51%and 16.70%based on 1.05 and 22.50 cm^(2),respectively.Moreover,these large-scale flexible PSCs demonstrate remarkable mechanical robustness,and the efficiency exhibits 93%retention after 7,000 bending cycles.These results show that the Oil-PEDOT is a potentially efficient HTL for fabricating efficient large-scale flexible PSCs. | Chenxiang Gong Lin Zhang Xiangchuan Meng Zhi Xing Li Rao Hongyu Wang Zengqi Huang Licheng Tan Ting Hu Xiaotian Hu Yiwang Chen | 2021 | Science China Chemistry2021，64，5： | 1 |
| 19 | Influence of Modeling Methods on the Calculated Lightning Surge Overvoltages at a UHVDC Converter Station Due to Backflashover显示文摘 | Han Yongxia Li Licheng Chen Huixiang | 2012 | IEEE Transactions on Power Delivery2012，27，3： | 1 |
| 20 | Influence of modeling methods on the calculated lightning surge overvoltages at a UHVDC converter station due to backflashover显示文摘 | Han Yongxia Li Licheng Chen Huixiang | 2012 | IEEE Transactions on Power Delivery2012，27，3： | 1 |
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