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| 1 | ANISOTROPIC BIQUADRATIC ELEMENT WITH SUPERCLOSE RESULT显示文摘这篇论文的主要目的是在各向异性的网孔上为第二个顺序问题学习四乘幂的有限元素的集中。由使用一些新奇途径和技术,最佳的错误估计被获得。同时,各向异性的 supercloseresults 也被完成。而且,数字结果被给表明我们的理论分析。 | Dongyang SHI Shipeng MAO Hui LIANG | 2006 | Journal of Systems Science & Complexity2006，19，4： | 8 |
| 2 | On the error bounds of nonconforming finite elements显示文摘We prove that the error estimates of a large class of nonconforming finite elements are dominated by their approximation errors, which means that the well-known Cea's lemma is still valid for these nonconforming finite element methods. Furthermore, we derive the error estimates in both energy and L2 norms under the regularity assumption u ∈ H1+s(Ω) with any s > 0. The extensions to other related problems are possible. | MAO ShiPeng SHI ZhongCi | 2010 | Science China Mathematics2010，53，11： | 6 |
| 3 | EXPLICIT ERROR ESTIMATES FOR MIXED AND NONCONFORMING FINITE ELEMENTS显示文摘在这份报纸,我们在混合的最低顺序和 nonconforming 的错误估计学习常数的明确的表情有限元素方法。我们以在最低顺序 Raviart-Thomas 插值错误的错误常数和三角的几何人物之间的一种明确的关系开始。这给最低顺序经常的一个明确的错误混合有限元素方法。而且,类似的结果能被扩大到 nonconforming P [1 ] 与最低顺序 Raviart-Thomas 方法基于它的靠近的连接策划。同时,如此的明确一个 priori 错误估计罐头被用作可计算出来的错误界限,它与为最佳的错误估计的最大的角度条件也一致混合并且 nonconforming 有限元素方法。[从作者抽象] | Shipeng Mao Zhong-ci Shi | 2009 | Journal of Computational Mathematics2009，27，4： | 5 |
| 4 | Uptake of graphene enhanced the photophosphorylation performed by chloroplasts in rice plants显示文摘New and enhanced functions were potentially imparted to the plant organelles after interaction with nanoparticles.In this study,we found that∼44%and∼29%of the accumulated graphene in the rice leaves passively transported to the chloroplasts and thylakoid,respectively,significantly enhanced the fluorescence intensity of chloroplasts,and promoted about 2.4 times higher adenosine triphosphate production than that of controls.The enhancement of graphene on the photophosphorylation was ascribed to two reasons:One is that graphene facilitates the electron transfer process of photosystem II in thylakoid,and the other is that graphene protects the photosystem II against photo-bleaching by acting as a scavenger of reactive oxygen species.Overall,our work here confirmed that graphene translocating in the thylakoid promoted the photosynthetic activity of chloroplast in vivo and in vitro,providing new opportunities for designing biomimetic materials to enhance the solar energy conversion systems,especially for repairing or increasing the photosynthesis activity of the plants grown under stress environment. | Kun Lu Danlei Shen Shipeng Dong Chunying Chen Sijie Lin Shan Lu Baoshan Xing Liang Mao | 2020 | Nano Research2020，13，12： | 4 |
| 5 | The Genetic Mechanism of Inertinite in the Middle Jurassic Inertinite- Rich Coal Seams of the Southern Ordos Basin显示文摘also an important geological information carrier of coal forming environments.In the southern section of the Ordos Basin,the No.4 inertinite-rich coal seam of the Middle Jurassic Yan’an Formation in the Binchang Coal field was selected as an example to study the genetic mechanism of the inertinite.In this study,the results obtained from experimental tests of coal rock,including principal and trace elements,stable carbon isotopes,scanning electron microscopy,inertinite reflectance,sporopollen and free radical retorting methods,were analyzed.Then,the findings were combined with the previous understanding of the oxygen content in the atmosphere and ground fire characteristics,in order to discuss the genesis mechanism of inertinite in the No.4 coal seam.The obtained research results were as follows:(1)During the coal forming period of the No.4 coal seam,the overall climate had been relatively dry.There were four relatively dry-wet climate cycles in the No.4 coal seam,which were controlled by the eccentricity astronomical period.The inertinite content were relatively high during the dry periods;(2)The temperature range suitable for microorganism activities during the oxidation processes was between 0 and 80℃.The simulation results of the free radical concentrations showed that the maximum temperature of fusain in the No.4 coal seam during the process of coalification had not exceeded 300℃,which was significantly higher than the temperature range of microorganism activities.Therefore,these were not conducive to the activities of microorganism and formation of inertinite during the coal-forming period;(3)The genesis temperature of the inertinite in the No.4 coal seam was calculated according to the reflectance of the inertinite,which was lower than 400℃.This result supported the cause of wildfire of the inertinite and reflected that the type of wildfire was mainly ground fire,along with partially surface fire.Moreover,the paleogeographic location,climatic conditions,atmospheric oxygen concentration,etc.of the study area showed that the conditions for wildfire events were in fact available;(4)There were dense and scattered fusinite observed in the No.4 coal seam,and the thickness of cell walls were found to differ.It was speculated that this was related to the type of wildfire,combustion temperatures,combustion timeframes,and different initial conditions of the burned objects during the coal forming periods. | Dongdong Wang Qiang Mao Guoqi Dong Shipeng Yang Dawei Lv Lusheng Yin | 2019 | Journal of Geological Research2019，1，3： | 3 |
| 6 | ADAPTIVE QUADRILATERAL AND HEXAHEDRAL FINITE ELEMENT METHODS WITH HANGING NODES AND CONVERGENCE ANALYSIS显示文摘In this paper we study the convergence of adaptive finite element methods for the generalnon-affine equivalent quadrilateral and hexahedral elements on 1-irregular meshes withhanging nodes.Based on several basic ingredients,such as quasi-orthogonality,estimatorreduction and D(o|¨)fler marking strategy,convergence of the adaptive finite element methodsfor the general second-order elliptic partial equations is proved.Our analysis is effectivefor all conforming Q_m elements which covers both the two- and three-dimensional cases ina unified fashion. | Xuying Zhao Shipeng Mao Zhong-Ci Shi | 2010 | Journal of Computational Mathematics2010，28，5： | 3 |
| 7 | High per- formance graphene oxide based rubber composites显示文摘 | Mao Yingyan Wen Shipeng Chen Yulong | 2013 | Scien- tific Reports2013，3，3： | 1 |
| 8 | HTR2A agonists play a therapeutic role by restricting ILC2 activation in papain-induced lung inflammation显示文摘Group 2 innate lymphoid cells(ILC2s)are a category of heterogeneous cells that produce the cytokines IL-5 and IL-13,which mediate the type 2 immune response.However,specific drug targets on lung ILC2s have rarely been reported.Previous studies have shown that type 2 cytokines,such as IL-5 and IL-13,are related to depression.Here,we demonstrated the negative correlation between the depression-associated monoamine neurotransmitter serotonin and secretion of the cytokines IL-5 and IL-13 by ILC2s in individuals with depression.Interestingly,serotonin ameliorates papain-induced lung inflammation by suppressing ILC2 activation.Our data showed that the serotonin receptor HTR2A was highly expressed on ILC2s from mouse lungs and human PBMCs.Furthermore,an HTR2A selective agonist(DOI)impaired ILC2 activation and alleviated the type 2 immune response in vivo and in vitro.Mice with ILC2-specific depletion of HTR2A(Il5^(cre/+)·Htr2a^(flox/flox)mice)abolished the DOI-mediated inhibition of ILC2s in a papain-induced mouse model of inflammation.In conclusion,serotonin and DOI could restrict the type 2 lung immune response,indicating a potential treatment strategy for type 2 lung inflammation by targeting HTR2A on ST2+ILC2s. | Zhishuo Wang Chenghua Yan Qizhen Du Yuying Huang Xuezhen Li Dan Zeng Ruizhi Mao Rama Krishna Gurram Shipeng Cheng Wangpeng Gu Lin Zhu Weiguo Fan Liyan Ma Zhiyang Ling Ju Qiu Dangsheng Li Enmei Liu Yaguang Zhang Yiru Fang Jinfang Zhu Bing Sun | 2023 | Cellular & Molecular Immunology2023，20，4： | 1 |
| 9 | Nonconforming rotated Q_1 element on non-tensor product anisotropic meshes显示文摘In this paper, we consider the nonconforming rotated Q1 element for the second order elliptic problem on the non-tensor product anisotropic meshes, i.e. the anisotropic affine quadrilateral meshes. Though the interpolation error is divergent on the anisotropic meshes,we overcome this difficulty by constructing another proper operator. Then we give the optimal approximation error and the consistency error estimates under the anisotropic affine quadrilateral meshes. The results of this paper provide some hints to derive the anisotropic error of some finite elements whose interpolations do not satisfy the anisotropic interpolation properties. Lastly, a numerical test is carried out, which coincides with our theoretical analysis. | MAO Shipeng SHI Zhongci | 2006 | Science China Mathematics2006，49，10： | 1 |
| 10 | An optimally convergent adaptive mixed finite element method显示文摘 | Roland Becker Shipeng Mao | 2008 | Numerische Mathematik2008，，1： | 1 |
| 11 | High per- formance graphene oxide based rubber composites显示文摘 | Mao Yingyan Wen Shipeng Chen Yulong | 2013 | Scien- tific Reports2013，3，： | 1 |
| 12 | CONVERGENCE AND SUPERCONVERGENCE ANALYSIS OF LAGRANGE RECTANGULAR ELEMENTS WITH ANY ORDER ON ARBITRARY RECTANGULAR MESHES显示文摘这份报纸是在各向异性的网孔下面学习矩形的有限元素的集中和 superconvergence。由直角的扩大方法使用,各向异性的 Lagrange 插值被介绍。有所有可能的形状功能空格的 Lagrange 矩形的元素的家庭被认为家庭,它盖住中间的家庭,张肌产品家庭和易遇奇缘的运气。各向异性的插值错误估计为任何顺序 Sobolev 标准成立,这被显示出。我们以一个统一方法扩大集中和矩形的有限元素的 superconvergence 结果到任意的矩形的网孔。[从作者抽象] | Mingxia Li Xiaofei Guan Shipeng Mao | 2014 | Journal of Computational Mathematics2014，32，2： | 1 |
| 13 | Awakening the oxygen evolution activity of MoS_(2) by oxophilic-metal induced surface reorganization engineering显示文摘Although molybdenum disulfide (MoS_(2))-based materials are generally known as active electrocatalysts for the hydrogen evolution reaction (HER), the inert performance for the oxygen evolution reaction (OER) seriously limits their wide applications in alkaline electrolyzers due to there exists too strong metal-sulfur (M−S) bond in MoS_(2). Herein, by means of surface reorganization engineering of bimetal Al, Co-doped MoS_(2) (devoted as AlCo_(3)-MoS_(2)) through in situ substituting partial oxidation, we successfully significantly activate the OER activity of MoS_(2), which affords a considerably low overpotential of 323 mV at −30 mA cm^(−2), far lower than those of MoS_(2), Al-MoS_(2) and Co-MoS_(2) catalysts. Essentially, the AlCo_(3)-MoS_(2) substrate produces lots of M−O (M=Al, Co and Mo) species with oxygen vacancies, which trigger the surface self-reconstruction of pre-catalysts and simultaneously boost the electrocatalytic OER activity. Moreover, benefiting from the moderate M−O species formed on the surface, the redistribution of surface electron states is induced, thus optimizing the adsorption of OH* and OOH* intermediates on metal oxyhydroxides and awakening the OER activity of MoS_(2). | Xueqin Mu Yang Zhu Xiangyao Gu Shipeng Dai Qixin Mao Lintao Bao Wenxuan Li Suli Liu Jianchun Bao Shichun Mu | 2021 | Journal of Energy Chemistry2021，30，11： | 0 |
| 14 | Potential contribution of increased soluble IL-2R to lymphopenia in COVID-19 patients显示文摘Since the outbreak of coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),more than 6 million cases are confirmed and over 300,000 cases are dead after infection.Dysfunction of immunity in COVID-19 patients has been considered as one of the fatal factors for patients,especially cytokine release syndrome and lymphopenia.1,2,3 The reduced number and increased exhaustion level of lymphocyte are associated with elevated inflammatory cytokines in COVID-19 patients.4,5 However,the mechanism of cytokine-induced lymphopenia in COVID-19 is very unclear.IL-2 is critical for the proliferation,differentiation,and function of T cells,including Tregs,CD4+,and CD8+effector cells.6 Here,we reported the negative relationship between the concentration of soluble IL-2 receptor(sIL-2R)and T-cell number in blood from COVID-19 patients.In vitro addition of recombinant CD25 could inhibit the proliferation and function of T cells from PBMC after stimulated with TCR signaling,which could be rescued by strong IL-2 signaling.Our data suggested the importance of IL-2 signaling in lymphopenia of COVID-19 patients. | Yaguang Zhang Xiaojing Wang Xuezhen Li Dong Xi Ruizhi Mao Xiaohui Wu Shipeng Cheng Xiaoyu Sun Chunyan Yi Zhiyang Ling Liyan Ma Qin Ning Yiru Fang Bing Sun Di Wu | 2020 | Cellular & Molecular Immunology2020，17，8： | 0 |
| 15 | Anisotropic adaptive finite element method for magnetohydrodynamic flow at high Hartmann numbers显示文摘This paper presents an anisotropic adaptive finite element method(FEM) to solve the governing equations of steady magnetohydrodynamic(MHD) duct flow. A residual error estimator is presented for the standard FEM, and two-sided bounds on the error independent of the aspect ratio of meshes are provided. Based on the Zienkiewicz-Zhu estimates, a computable anisotropic error indicator and an implement anisotropic adaptive refinement for the MHD problem are derived at different values of the Hartmann number.The most distinguishing feature of the method is that the layer information from some directions is captured well such that the number of mesh vertices is dramatically reduced for a given level of accuracy. Thus, this approach is more suitable for approximating the layer problem at high Hartmann numbers. Numerical results show efficiency of the algorithm. | Jikun ZHAO Shipeng MAO Weiying ZHENG | 2016 | Applied Mathematics and Mechanics(English Edition)2016，37，11： | 0 |
| 16 | Approximate acoustic cloaking in inhomogeneous isotropic space显示文摘We consider the approximate acoustic cloaking in an inhomogeneous isotropic background space.By employing transformation media,together with the use of a sound-soft layer lining right outside the cloaked region,we show that one can achieve the near-invisibility by the'blow-up-a-small-region'construction.This is based on novel scattering estimates corresponding to multiple multi-scale obstacles located in an isotropic space.We develop a novel system of integral equations to decouple the nonlinear scattering interaction among the small obstacle components,the regular obstacle components and the inhomogeneous background medium. | LI JingZhi LIU HongYu MAO ShiPeng | 2013 | Science China Mathematics2013，56，12： | 0 |
| 17 | Assessing comparable bioconcentration potentials for nanoparticles in aquatic organisms via combined utilization of machine learning and toxicokinetic models显示文摘The toxicokinetic(TK)model‐derived kinetic bioconcentration factor(BCFk)provides a quantitatively comparable index to estimate the bioaccumulation potential of nanoparticles(NPs)that barely reach thermodynamic equilibrium in aquatic organisms,but experimental data are limited for various NPs.In the present study,a machine learning model was applied to offer reliable in silico predictions for the dynamic body burden of diverse NPs to derive corresponding parameters for the TK model.The developed eXtreme Gradient Boosting‐derived TK(XGB‐TK)model was applied to predict BCFk results for a broad range of metallic or carbonaceous NPs,with an appreciable prediction R2 of 0.96.The BCFk values were predicted based on a random combination of selected variable features,revealing that their bioaccumulation potential showed an overall negative correlation with NP density or organism size.By applying importance analysis and partial dependence plots,NP density and organism size were revealed to be the top essential features that impact the bioaccumulation potential.The conjunctively used XGB‐TK model enabled a prior comparison for diverse NPs and straightforward derivation on the dependency of features,which could also guide the bioaccumulation mechanism exploration and experimental condition formulation. | Shipeng Dong Zihao Wu Mingjie Wang Xiaoyan Sun Liang Mao | 2023 | SmartMat2023，4，3： | 0 |
| 18 | A PRIORI ERROR ESTIMATES OF A FINITE ELEMENT METHOD FOR DISTRIBUTED FLUX RECONSTRUCTION*显示文摘这份报纸涉及为在逆的某未知分布式的流动的数字重建的一个有限元素方法的估计加热的一个 priori 错误传导问题。更精确,一些未知分布式的 Neumann 数据将在外部可存取的边界上用 Dirichlet 测量数据在内部无法接近的边界上被恢复。在这个工作的主要贡献是建立分别地,一个 priori 错误在领域并且在可存取 / 无法接近的边界上以网孔尺寸估计的一些因为温度 u 和伴随在最低整齐假设下面说 p。集中率的更低的界限取决于领域的几何学,这被揭示。这些估计自己具有巨大的兴趣并且铺的一个 priori 错误为证明集中是适应技术的分析的方法把反的热传导问题的班用于一个将军。数字实验被介绍验证我们的理论预言。[从作者抽象] | Mingxia Li Jingzhi Li Shipeng Mao | 2013 | Journal of Computational Mathematics2013，31，4： | 0 |
| 19 | Anisotropic Superconvergence Analysis for the Wilson Nonconforming Element显示文摘The regular condition (there exists a constant c independent of the element K and the mesh such that hK/ρK ≤ c, where hK and ρK are diameters of K and the biggest ball contained in K, respectively) or the quasi-uniform condition is a basic assumption in the analysis of classical finite elements. In this paper, the supercloseness for consistency error and the superconvergence estimate at the central point of the element for the Wilson nonconforming element in solving second-order elliptic boundary value problem are given without the above assumption on the meshes. Furthermore the global superconvergence for the Wilson nonconforming element is obtained under the anisotropic meshes. Lastly, a numerical test is carried out which confirms our theoretical analysis. | Shaochun Chen Huixia Sun Shipeng Mao | 2006 | Numerical Mathematics A Journal of Chinese Universities(English Series)2006，15，2： | 0 |
| 20 | UNCONDITIONAL CONVERGENCE AND ERROR ESTIMATES OF A FULLY DISCRETE FINITE ELEMENT METHOD FOR THE MICROPOLAR NAVIER-STOKES EQUATIONS显示文摘In this paper,we consider the initial-boundary value problem(IBVP)for the micropolar Naviers-Stokes equations(MNSE)and analyze a first order fully discrete mixed finite element scheme.We first establish some regularity results for the solution of MNSE,which seem to be not available in the literature.Next,we study a semi-implicit time-discrete scheme for the MNSE and prove L2-H1 error estimates for the time discrete solution.Furthermore,certain regularity results for the time discrete solution are establishes rigorously.Based on these regularity results,we prove the unconditional L2-H1 error estimates for the finite element solution of MNSE.Finally,some numerical examples are carried out to demonstrate both accuracy and efficiency of the fully discrete finite element scheme. | Shipeng Mao Jiaao Sun Wendong Xue | 2024 | Journal of Computational Mathematics2024，42，1： | 0 |
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