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| 1 | Assimilating Surface Observations in a Four-Dimensional Variational Doppler Radar Data Assimilation System to Improve the Analysis and Forecast of a Squall Line Case显示文摘This paper examines how assimilating surface observations can improve the analysis and forecast ability of a fourdimensional Variational Doppler Radar Analysis System(VDRAS).Observed surface temperature and winds are assimilated together with radar radial velocity and reflectivity into a convection-permitting model using the VDRAS four-dimensional variational(4DVAR) data assimilation system.A squall-line case observed during a field campaign is selected to investigate the performance of the technique.A single observation experiment shows that assimilating surface observations can influence the analyzed fields in both the horizontal and vertical directions.The surface-based cold pool,divergence and gust front of the squall line are all strengthened through the assimilation of the single surface observation.Three experiments—assimilating radar data only,assimilating radar data with surface data blended in a mesoscale background,and assimilating both radar and surface observations with a 4DVAR cost function—are conducted to examine the impact of the surface data assimilation.Independent surface and wind profiler observations are used for verification.The result shows that the analysis and forecast are improved when surface observations are assimilated in addition to radar observations.It is also shown that the additional surface data can help improve the analysis and forecast at low levels.Surface and low-level features of the squall line—including the surface warm inflow,cold pool,gust front,and low-level wind—are much closer to the observations after assimilating the surface data in VDRAS. | Xingchao CHEN Kun ZHAO Juanzhen SUN Bowen ZHOU Wen-Chau LEE | 2016 | Advances in Atmospheric Sciences2016，33，10： | 6 |
| 2 | N-doped porous carbon nanofibers sheathed pumpkin-like Si/C composites as free-standing anodes for lithium-ion batteries显示文摘Dramatic capacity fading and poor rate performance are two main obstacles that severely hamper the widespread application of the Si anode owing to its large volume variation during cycling and low intrinsic electrical conductivity.To mitigate these issues,free-standing N-doped porous carbon nanofibers sheathed pumpkin-like Si/C composites(Si/C-ZIF-8/CNFs)are designed and synthesized by electrospinning and carbonization methods,which present greatly enhanced electrochemical properties for lithium-ion battery anodes.This particular structure alleviates the volume variation,promotes the formation of stable solid electrolyte interphase(SEI)film,and improves the electrical conductivity.As a result,the as-obtained free-standing Si/C-ZIF-8/CNFs electrode delivers a high reversible capacity of 945.5 mAh g^(-1) at 0.2 A g^(-1) with a capacity retention of 64% for 150 cycles,and exhibits a reversible capacity of 538.6 mA h g^(-1) at 0.5 A g^(-1) over 500 cycles.Moreover,the full cell composed of a freestanding Si/C-ZIF-8/CNFs anode and commercial LiNi_(1/3)Co_(1/3)Mn_(1/3)O_(2)(NCM)cathode shows a capacity of 63.4 mA h g^(-1) after 100 cycles at 0.2 C,which corresponds to a capacity retention of 60%.This rational design could provide a new path for the development of high-performance Si-based anodes. | Yanfei Zeng Yudai Huang Niantao Liu Xingchao Wang Yue Zhang Yong Guo Hong-Hui Wu Huixin Chen Xincun Tang Qiaobao Zhang | 2021 | Journal of Energy Chemistry2021，30，3： | 6 |
| 3 | Simulating and validating the effects of slope frost heaving on canal bed saturated soil using coupled heat-moisture-deformation model显示文摘The lining canals in seasonal frozen soil areas can be severely damaged by frost heaving.The freezing and thawing contributes to the continual change of the temperature field and moisture field beneath lining canal,which will seriously affect the safe operation of the canal.In order to study the frost heaving damage mechanism of lining canal and to solve the associated engineering problems,the permafrost body was regarded as an elastomer,and a three-field,coupled,partial differential equation describing the temperature,moisture and deformation fields for a saturated two-dimensional canal bed was derived and established based on the Harlan model.The coupling equations were discretized using the finite element method in space and the finite difference method in time.The parameters were simplified appropriately based on compliance with the actual conditions and were simulated using finite element software.The results of a sample simulation showed that the simulated results and test results were basically consistent with variation laws,which proved the correctness of the numerical simulation theory and solution methods and the reliability of the calculation.The model can simulate the water,heat and deformation issues in the side slope of saturated canal bed soil in a seasonally frozen area and forecast freezing damage in the canals. | Wang Enliang Fu Qiang Liu Xingchao Li Tianxiao Li Jinling | 2017 | International Journal of Agricultural and Biological Engineering2017，10，2： | 3 |
| 4 | 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 |
| 5 | Imaging Findings of Hepatic Ewing’s Sarcoma on Computed Tomography and Gadobenate Dimeglumine-enhanced Magnetic Resonance Imaging: A Case Report and Literature Review显示文摘Ewing’s sarcoma(ES)is a tumor that often occurs in the long bones and rarely arises from visceral organs primarily.Here,we report a case of primary hepatic ES,discuss its computed tomography(CT)and gadobenate dimeglumineenhanced magnetic resonance(MRI)features.This is the first Chinese and fifth primary hepatic ES case reported,based on a literature review.Imaging examinations showed that the tumor was solid,with necrosis and hemorrhage.Contrast-enhanced images showed that the tumor was hypervascular and especially had heterogeneous signal intensity on hepatobiliary phase MRI images.Intratumoral vessels and vascular invasion were also present. | Tao Lu Wenhao Yang Xingchao Liu Xudan Yang Chong Yang Wenjia Di | 2022 | Journal of Clinical and Translational Hepatology2022，10，3： | 2 |
| 6 | A novel PMA/PEG-based composite polymer electrolyte for all-solid-state sodium ion batteries显示文摘In recent years,development of all-solid-state batteries has become a promising approach to improve the safety of batteries.Herein,we report the preparation of a new composite polymer electrolyte (CPE)for use in all-solid-state sodium ion batteries.The CPE comprising of poly(methacrylate)(PMA),poly(ethylene glycol)(PEG),α-Al2O3 with acidic surface sites,and NaClO4 exhibited high ionic conductivity (1.46×10^-4 S·cm^-1 at 70℃),wide electrochemical stability window (4.5V vs.Na+/Na),and good mechanical strength.With the introduction of the prepared CPE and Na3V2(PO4)3,the final all-solid-state sodium ion batteries showed good rate and cycle performance,with a high reversible capacity of 85mAh·g^-1 when operated at 0.5C (1C=118mA·g^-1)and 94.1%capacity retention rate after 350cycles at 70℃.Our work provides a novel solid electrolyte for the development of all-solid-state sodium ion batteries. | Xuejing Zhang Xingchao Wang Shuang Liu Zhanliang Tao Jun Chen | 2018 | Nano Research2018，11，12： | 2 |
| 7 | A compact 3D block cutting and contact searching algorithm显示文摘The geometry relation and the contact point-pairs detection between two three dimensional(3D) objects with arbitrary shapes are essential problems involved in discontinuous computation and computational geometry. This paper reported a geometry relation judgment and contact searching algorithm based on Contact Theory. A contact cover search algorithm is proposed to find all the possible contact cover between two blocks. Two blocks can come to contact only on these covers. Each contact cover can define a possible contact point-pair between two blocks. Data structure and flow chart are provided, as well as some examples in details.Contact problems involving concave blocks or parallel planes are considered to be very difficult in past and are solved by this algorithm. The proposed algorithm is compacted and applicable to the discontinuous computation, such as robotic control, rock mass stability, dam stability etc. A 3D cutting and block searching algorithm is also proposed in this study and used to search the outer boundary of the 3D entrance block when 3D concave blocks are encountered. The 3D cutting and block searching algorithm can be also used to form the block system for jointed rock. | LIN XingChao LI Xu WANG XiaoGang WANG YuJie | 2019 | Science China(Technological Sciences)2019，62，8： | 2 |
| 8 | A Study of Wet Catalytic Oxidation of Radioactive Spent Ion Exchange Resin by Hydrogen Peroxide 显示文摘 | Wu Tianbao Yun Guichun | 1996 | Nuclear Safety1996，37，2： | 1 |
| 9 | Resonant terahertz reflection of periodic arrays of subwavelength metallic rectangles 显示文摘 | LU Xingchao HAN Jiaguang ZHANG Weili | 2008 | Appl Phys Lett(S0003-6951)2008，92，12： | 1 |
| 10 | Transmission field enhancement ofterahertz pulses in plasmonic, rectangular coaxial geometries 显示文摘 | LU Xingchao HAN Jiaguang ZHANG Weili | 2010 | Opt Lett(S0146-9592)2010，35，： | 1 |
| 11 | Determination of mechanical parameters for jointed rock masses显示文摘Combining with empirical method, laboratory test and numerical simulation, a comprehensive system was presented to determine the mechanical parameters of jointed rock masses. The system has the following four functions: (1) Based on the field investigation of joints, the system can consider rock mass structures, by using network simulation technology. (2) Rock samples are conducted by numerical simulation with the input engineering mechanical parameters of rocks and joints obtained from laboratory tests. (3) The whole stress-strain curve of jointed rock masses under certain normal stress can be plotted from numerical simulation, and then the shear strength parameters of jointed rock masses can be obtained from the whole stress-strain curves under different normal stresses. (4) The statistical values of mechanical parameters of jointed rock masses can be determined according to numerical simulation. Based on the statistical values, combining with engineering experiences and geological investigations, the comprehensive mechanical parameters of jointed rock masses can be achieved finally. Several cases are presented to prove the engineering feasibility and suitability of this system. | Xiaogang Wang Yufei Zhao Xingchao Lin China | 2011 | Journal of Rock Mechanics and Geotechnical Engineering2011，3，S1： | 1 |
| 12 | A Study of Wet Oxidation of Radioactive Spent Ion-exchange Resin by Hydrogen Peroxide显示文摘 | Jian Xingchao Wu Tianbao Yun Guichun | 1996 | Nucl SM1996，37，2： | 1 |
| 13 | Development of a LC-MS/MS method for the determination of antrodin B and antrodin C from Antrodia camphorata extract in rat plasma for pharmacokinetic study显示文摘 | LIU Yongli DI Xin LIU Xingchao | 2010 | Journal of Pharmaceutical and Biomedical Analysis2010，53，3： | 1 |
| 14 | Collaborative manufacturing technologies of structure shape and surface integrity for complex thin-walled components of aero-engine:Status,challenge and tendency显示文摘Presently,the service performance of new-generation high-tech equipment is directly affected by the manufacturing quality of complex thin-walled components.A high-efficiency and quality manufacturing of these complex thin-walled components creates a bottleneck that needs to be solved urgently in machinery manufacturing.To address this problem,the collaborative manufacturing of structure shape and surface integrity has emerged as a new process that can shorten processing cycles,improve machining qualities,and reduce costs.This paper summarises the research status on the material removal mechanism,precision control of structure shape,machined surface integrity control and intelligent process control technology of complex thin-walled components.Numerous solutions and technical approaches are then put forward to solve the critical problems in the high-performance manufacturing of complex thin-wall components.The development status,challenge and tendency of collaborative manufacturing technologies in the high-efficiency and quality manufacturing of complex thin-wall components is also discussed. | Biao ZHAO Wenfeng DING Zhongde SHAN Jun WANG Changfeng YAO Zhengcai ZHAO Jia LIU Shihong XIAO Yue DING Xiaowei TANG Xingchao WANG Yufeng WANG Xin WANG | 2023 | Chinese Journal of Aeronautics2023，36，7： | 1 |
| 15 | Removal of organic pollutants in municipal wastewater for artificial groundwater recharge 显示文摘 | YUN Guichun CHENG Xuzhou JIAN Xingchao | 2000 | Tsinghua Sci and Tech2000，5，3： | 1 |
| 16 | IL-12 Facilitates Both the Recovery of Endogenous Hematopoiesis and the Engraftment of Stem Cells after Ionizing Radiation显示文摘 | Tingchao Chen Kathleen A. Burke Yuxia Zhan Xingchao Wang Darryl Shibata Yi Zhao | 2007 | Experimental Hematology2007，，2： | 1 |
| 17 | STUDY ON PERFORM-ANCE EVALUATION METHOD BASED ONMEASURE-MENT FOR WIRELESS SENSOR NETWORK 显示文摘 | Yuan Lingyun Wang Xingchao | 2009 | Pro-ceedings of ICCTA2009，，： | 1 |
| 18 | The First High-quality Reference Genome of Sika Deer Provides Insights into High-tannin Adaptation显示文摘Sika deer are known to prefer oak leaves,which are rich in tannins and toxic to most mammals;however,the genetic mechanisms underlying their unique ability to adapt to living in the jungle are still unclear.In identifying the mechanism responsible for the tolerance of a highly toxic diet,we have made a major advancement by explaining the genome of sika deer.We generated the first high-quality,chromosome-level genome assembly of sika deer and measured the correlation between tannin intake and RNA expression in 15 tissues through 180 experiments.Comparative genome analyses showed that the UGT and CYP gene families are functionally involved in the adaptation of sika deer to high-tannin food,especially the expansion of the UGT family 2 subfamily B of UGT genes.The first chromosome-level assembly and genetic characterization of the tolerance to a highly toxic diet suggest that the sika deer genome may serve as an essential resource for understanding evolutionary events and tannin adaptation.Our study provides a paradigm of comparative expressive genomics that can be applied to the study of unique biological features in non-model animals. | Xiumei Xing Cheng Ai Tianjiao Wang Yang Li Huitao Liu Pengfei Hu Guiwu Wang Huamiao Liu Hongliang Wang Ranran Zhang Junjun Zheng Xiaobo Wang Lei Wang Yuxiao Chang Qian Qian Jinghua Yu Lixin Tang Shigang Wu Xiujuan Shao Alun Li Peng Cui Wei Zhan Sheng Zhao Zhichao Wu Xiqun Shao Yimeng Dong Min Rong Yihong Tan Xuezhe Cui Shuzhuo Chang Xingchao Song Tongao Yang Limin Sun Yan Ju Pei Zhao Huanhuan Fan Ying Liu Xinhui Wang Wanyun Yang Min Yang Tao Wei Shanshan Song Jiaping Xu Zhigang Yue Qiqi Liang Chunyi Li Jue Ruan Fuhe Yang | 2023 | Genomics, Proteomics & Bioinformatics2023，21，1： | 1 |
| 19 | Luminescent and Magnetic Properties in Semiconductor Nanocrystals with Radial-Position-Controlled Mn2+ Doping 显示文摘 | Boping Yang Xingchao Shen H uichao Zhang | 2013 | J Phys Chem C2013，117，15： | 1 |
| 20 | CBERS-02 Application Assessment显示文摘As the successor of CBERS-01, CBERS-02 was launched successfully on 21October 2003 and transmitted its first downlink data the next day. According to the OBT (On Board Test) outline, CRESDA cooperated with CAST and many remote sensing organizations in China in implementing the test of the satellite payloads, ground processing system and data application. In this paper, the test is briefly illustrated in three parts: Ⅰ. Satellite Parameters Test (especially the test for payloads), Ⅱ. Payload Image Quality Assessment, and Ⅲ. Data Application Assessment. The results of the test show that the image quality of CBERS-02 is much improved over CBERS-01 and will continue to play a more important role in the society and economic development of China. | GUO Jianning YU Jin MIN Xiangjun LI Xingchao HOU Minghui | 2004 | 空间科学学报2004，24，z1： | 0 |
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