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| 1 | Superconvergence of a Nonconforming Finite Element Approximation to Viscoelasticity Type Equations on Anisotropic Meshes显示文摘The main aim of this paper is to study the approximation to viscoelasticity type equations with a Crouzeix-Raviart type nonconforming finite element on the anisotropic meshes. The superclose property of the exact solution and the optimal error estimate of its derivative with respect to time are derived by using some novel techniques. Moreover, employing a postprocessing technique, the global superconvergence property for the discretization error of the postprocessed discrete solution to the solution itself is studied. | Dongyang Shi Yucheng Peng Shaochun Chen | 2006 | Numerical Mathematics A Journal of Chinese Universities(English Series)2006，15，4： | 21 |
| 2 | A Nonconforming Arbitrary Quadrilateral Finite Element Method for Approximating Maxwell's Equations显示文摘The main aim of this paper is to provide convergence analysis of Quasi-Wilson nonconforming finite element to Maxwell's equations under arbitrary quadrilateral meshes.The error estimates are derived,which are the same as those for conforming elements under conventional regular meshes. | Dongyang Shi Lifang Pei Shaochun Chen | 2007 | Numerical Mathematics A Journal of Chinese Universities(English Series)2007，16，4： | 9 |
| 3 | Interpolation theory of anisotropic finite elements and applications显示文摘Interpolation theory is the foundation of finite element methods.In this paper,after reviewing some existed interpolation theorems of anisotropic finite element methods,we present a new way to analyse the interpolation error of anisotropic elements based on Newton's formula of polynomial interpolation as well as its applications. | CHEN ShaoChun XIAO LiuChao | 2008 | Science China Mathematics2008，51，8： | 7 |
| 4 | Effects of key design parameters of tine furrow opener on soil seedbed properties显示文摘The structural parameters of tine furrow openers have significant effects on soil property of seed furrow in no-till planting,thereby affecting crop growth and yields.In order to analyze the effects of key parameters of tine furrow openers on soil properties(soil bulk density,soil water-stable aggregates(WSA),and soil disturbance)of the surface soil layer of 0-10 cm and surface straw disturbance,the tine furrow openers with different structural parameters,including cutting edge thickness,cutting edge curve,penetration clearance angle and rake angle,were designed and tested under no-till conditions.Orthogonal test and single factor test were performed to analyze the effects of different parameters.Results showed that the rake angle,cutting edge thickness and cutting edge curve had significant effects on cross-sectional area of furrow(Af)and disturbance of surface straw;the rake angle had a significant effect on soil bulk density.Soil types and operating depth had significant effects on soil disturbance caused by tine furrow openers.The concave type tine furrow opener produced the lowest soil disturbance and soil bulk density of seed furrow,the highest surface straw disturbance and the greatest content of WSA(>0.5 mm).With increasing rake angles of tine furrow opener,the width of seedbed(Wsb)and the Af decreased first and then increased,respectively,while the width of soil throw(Wst)and the height of ridge(Hr)increased.The Wsb and Af created by tine furrow opener with 60°rake angle were significantly lower than that with others,respectively.The tine furrow opener with rake angle ranged from 45°to 60°created the lowest soil bulk density.As the penetration clearance angle increased,the content of WSA(>0.5 mm)decreased,but the effect of penetration clearance angle on the content of WSA(<0.5 mm)was not significant.The cutting edge thickness(<2 mm)had no significant effects on soil properties of seedbed.This study could provide a reference for optimal design of the tine furrow opener to create more suitable seedbed environment,and promote the application of the light no-till planters. | Zhang Xiangcai Li Hongwen Du Ruicheng Ma Shaochun He Jin Wang Qingjie Chen Wanzhi Zheng Zhiqi Zhang Zhiqiang | 2016 | International Journal of Agricultural and Biological Engineering2016，9，3： | 7 |
| 5 | ACCURACY ANALYSIS OF 12-PARAMETER RECTANGULAR PLATE ELEMENTS WITH GEOMETRIC SYMMETRY显示文摘In this paper, it is proved that the double set parameter rectangular plate elements with geometric symmetry possess a very special convergence property, i.e., the consistency error due to nonconformity is of order O(h2) which is one order higher than that of ACM element and rectangular generalized conforming element proposed by Y. Q. Long, although all these elements have the same asympotical rate of convergence O(h) in the energy norm. This particular property seems to be never seen before for other nonconforming rectangular plate elements. | SHI Dongyang CHEN Shaochun (Department of Mathematics, Zhengzhou University, Zhengzhou 450052, China) | 2000 | Systems Science and Mathematical Sciences2000，13，2： | 6 |
| 6 | Uniformly convergent H(div)-conforming rectangular elements for Darcy-Stokes problem显示文摘We consider a singular perturbation problem which describes 2D Darcy-Stokes flow.An H(div)-conforming rectangular element,DS-R14,is proposed and analyzed frst.This element has 14 degrees of freedom for velocity and is proved to be uniformly convergent with respect to perturbation constant.We then simplify this element to get another H(div)-conforming rectangular element,DS-R12,which has 12 degrees of freedom for velocity.The uniform convergence is also obtained for this element.Finally,we construct a de Rham complex corresponding to DS-R12 element. | CHEN ShaoChun DONG LiNa QIAO ZhongHua | 2013 | Science China Mathematics2013，56，12： | 6 |
| 7 | Growth and metal uptake of energy sugarcane (Saccharum spp.) in different metal mine tailings with soil amendments显示文摘A pot experiment was conducted to investigate the feasibility of growing energy sugarcane(Saccharum spp.) in three different metal mine tailings(Cu, Sn and Pb/Zn tailings) amended with uncontaminated soil at different mixing ratios. The results indicated that sugarcane was highly tolerant to tailing environments. Amendments of 20% soil to Sn tailings and 30% soil to Cu tailings could increase the biomass of cane-stem for use as the raw material for bioethanol production. Heavy metals were mostly retained in roots, which indicated that sugarcane was useful for the stabilization of the tailings. Bagasse and juice, as the most valuable parts to produce bioethanol, only accounted for 0.6%– 3% and 0.6%–7% of the total metal content. Our study supported the potential use of sugarcane for tailing phytostabilization and bioenergy production. | Xin Zhang Yongguan Zhu Yuebin Zhang Yunxia Liu Shaochun Liu Jiawen Guo Rudan Li Songlin Wu Baodong Chen | 2014 | Journal of Environmental Sciences2014，26，5： | 4 |
| 8 | De-oncogenic HPV E6/E7 vaccine gets enhanced antigenicity and promotes tumoricidal synergy with cisplatin显示文摘以便与高风险的人的乳头状瘤病毒(HPV ) 对癌症开发更有效的治疗学的疫苗感染,它对关键提高 immunogenicity,消除 oncoproteins 的 oncogenicity,并且拿包含 E7 和包含 E6 疫苗的联合。它最近被看了那 PE ( III ) -E7-KDEL3 ( E7 ),包含 HPV16 oncoprotein E7 的熔化蛋白质和 Pseudomonas aeruginosa 外毒素 A 的 translocation 域,对因此,在鼠标接种的 TC-1 肿瘤房间是有效的我们设计了 PE ( III ) -E6-CRL-KDEL3 ( E6 ), E7 和 E6 熔化蛋白质的 de-oncogenic 版本[即 PE ( III )-E7(d)-KDEL3, E7 (d),和 PE ( III )-E6(d)-CRL-KDEL3, E6 (d)]并且作为单音测试了这些熔化蛋白质的 immunoefficacies --并且二原子价的疫苗。结果比它的野类型和 E6 熔化蛋白质扩充他们的 E7 对应物的 immunogenicity 和 antitumor 效果的显示 E7 (d) 得到更高的 immunogenicity。而且,面对 cisplatin,加 E6 (d) 的二原子价的疫苗的系统 E7 (d) 在 vivo 对确定的肿瘤显示出最好的 tumoristatic 和 tumoricidal 效果。因此,在进一步的优化之上,这个新奇治疗学的疫苗的系统可以在 HPV 相关的癌的临床的管理上打开新灯,这能被结束。 | Shaochun Chen Chaowei Liao Yiukay Lai Yan Fan Gang Lu Hua Wang Xiaoai Zhang Marie C.M. Lin Shuilong Leng Hsiang-Fu Kung | 2014 | Acta Biochimica et Biophysica Sinica2014，46，1： | 3 |
| 9 | Accuracy analysis of quasi-Wilson element显示文摘 | Chen Shaochun Shi Dongyang | 2000 | Acta Mathematic Scientia2000，，： | 2 |
| 10 | A SET OF 12-PARAMETER RECTANGULAR PLATE ELEMENT WITH HIGH ACCURACY显示文摘Using the method of undetermined function, a set of 12 parameter rectangular plate element with double set parameter and geometry symmetry is constructed. Their consistency error are O(h\+2) , one order higher than the usual 12 parameter rectangular plate elements. | Chen Shaochun\ Luo Laixing | 1999 | Applied Mathematics(A Journal of Chinese Universities)1999，14，4： | 2 |
| 11 | Mycorrhizal Synthesis Involving Boletus edulis and Pinus massoniana显示文摘Mycorrhizae involving Boletus edulis and Pinus massoniana have been successfully established and their morphological characteristics described.Optimal conditions for mycorrhizal synthesis were determined using orthogonal testing of three parameters:substrate,age of host plant and inoculation procedure.Following integration analysis of plant survival rates,diameter of seedling rootstock,height of seedling shoot,number of mycorrhizae,ratio of shoot/root biomass,number of mycorrhizae,and the ratio of infected/non-infected root tips,we concluded that a double-layered growth substrate that simulated natural soil structure was superior for mycorrhizal synthesis compared with the more commonly used single-layered peat moss and vermiculite substrate,especially when sepiolite powder was also added. | FU Shaochun TAN Qi CHEN Mingjie SHANG Xiaodong CAI Lingyi ZHANG Meiyan | 2009 | 食用菌学报2009，16，1： | 2 |
| 12 | Protective role and related mechanism of Gnaq n neural cells damaged by oxidative stress显示文摘Gnaq 是 G 蛋白质家庭的一个成员并且富于大脑织物。它由于它变化的高比率在黑瘤吸引了许多研究人员的注意。我们以前报导了在老鼠前脑外皮的 Gnaq 的表示水平显著地与年龄被减少。氧化应力(OS ) 是导致大脑老化和相关疾病的主要原因。在在大脑的 antioxidation 的 Gnaq 的角色和机制充分没被探索。在现在的学习,基因 recombinant 技术和 lentivirus transfection 技术被用来产生结合的一个 Gnaq-overexpression 房间模型(Gnaq-SY5Y ) H 2 造一个 OS 模型的 O 2 。细胞,反应的氧种类(ROS ) 的集中, apoptosis 相关的蛋白质(Bcl-2 和 Bax ) ,和信号小径(NF-B 和 Erk1/2 ) 的生存能力在模型细胞和控制细胞之间被比较。结果证明 Gnaq-SY5Y 房间的抗氧化的能力显著地被改进。附随地,在 Gnaq-SY5Y 房间的 ROS 水平显著地被减少房间是否服从于到 H 2 O 2 处理。Anti-apoptotic 蛋白质 Bcl-2 是起来调整的,支持 apoptosis 蛋白质 Bax 在在有 H 2 O 2 。NF-B 和 phosphorylated Erk1/2 (p-Erk1/2 ) 在 Gnaq-SY5Y 房间是显著地下面调整的。H 2 O 2 处理减少了 Gnaq 表示但是在 Gnaq-SY5Y 房间的增加的 NF-B 和 p-Erk1/2 表情。Gnaq 在神经房间在 antioxidation 起一个枢轴的作用,这因此被结束。为这的机制将是 overexpressed Gnaq 禁止细胞的损坏效果的可能的 A 由 NF-B 和 Erk1/2 信号小径调停了。 | Nannan Jia Guoping Li Pu Huang Jiazhi Guo Lugang Wei Di Lu Shaochun Chen | 2017 | Acta Biochimica et Biophysica Sinica2017，49，5： | 2 |
| 13 | Anisotropic interpolation and quasi-Wilsion element for narrow quadrilateral meshes显示文摘 | Shaochun Chen Dongyang Shi | 2004 | IMA Journal of Numerical Analysis2004，24，： | 1 |
| 14 | UNIFORMLY CONVERGENT NONCONFORMING ELEMENT FOR 3-D FOURTH ORDER ELLIPTIC SINGULAR PERTURBATION PROBLEM显示文摘在这份报纸,用水泡功能,我们构造一个长方体元素解决第四份订单在三种尺寸的椭圆形的单个不安问题。我们证明 nonconforming C0 长方体元素关于不安参数一致地在精力标准收敛。[从作者抽象] | Hongru Chen Shaochun Chen | 2014 | Journal of Computational Mathematics2014，32，6： | 1 |
| 15 | Anisotropic interpolation and quasi -Wilson element for narrow quadrilateral meshes显示文摘 | Chen Shaochun Shi Dongyang Zhao Yongcheng | 2004 | IMA J Number Anal2004，24，： | 1 |
| 16 | Caspase-3 mRNA expression in rats with apoptosis of retinal photoreceptor cells显示文摘BACKGROUND: Apoptosis of retinal photoreceptor cells is a commonly pathological characteristic of various eye diseases, while caspase-3 is an important regulating gene and plays a key role in apoptosis. OBJECTIVE: To measure the expression of caspase-3 mRNA in rats with apoptosis of retinal photoreceptor cells by using real-time fluorescent quantitative polymerase chain reaction and compare with those of the normal rats. DESIGN: Randomized controlled animal study. SETTING: Zhongshan Ophthalmological Center of Sun Yat-sen University. MATERIALS: A total of 36 female SD rats of 50 days old and clean grade and weighing (150±10) g were provided by Experimental Animal Center of Northern Area of Sun Yat-sen University. All rats were randomly divided into normal control group (n =6) and N-methyl-N-nitrosourea (MNU) group (n =30), and they were observed at 12 hours, 1, 2, 3 and 5 days after model establishment, with 6 rats at each time point. METHODS: The experiment was carried out at Zhongshan Ophthalmological Center, Key Laboratory of Ophthalmology by State Ministry of Education from March to December 2004. Rats in the normal control group were intraperitoneally injected with saline and rats in the MNU group were intraperitoneally injected with 40 mg/kg MNU. And then, retinal photoreceptor injured models were established. At 12 hours, 1, 2, 3 and 5 days after model establishment, the rats were sacrificed for enucleating right eyeballs, isolating retina immediately and extracting total RNA. The expression of caspase-3 mRNA in retina was measured with real-time fluorescent quantitative polymerase chain reaction. MAIN OUTCOME MEASURES: Expression of caspase-3 mRNA in retina of rats in the two groups. RESULTS: A total of 36 SD rats were involved in the final analysis. The expressions of caspase-3 mRNA in the rat retina of both groups at the five time points (12 hours, 1, 2, 3 and 5 days) after model establishment were 1.52×105, 18.35×105, 25.14×105, 29.25×105, 13.72×105 and 12.24×105, respectively. The expression of caspase-3 mRNA in the MNU group increased after 12 hours of intraperitoneal injection, and rose to the top on the 2nd day, which was 19 times as many as that of the normal control group. Then, it decreased gradually and was still 8 times as many as that of the normal control group on the 5th day. CONCLUSION: The expression of caspase-3 mRNA is related to apoptosis of retinal photoreceptor cells, while caspase-3 plays an important role in occurrence and development of apoptosis of retinal photoreceptor cells. | Jinmao Chen Jinnan Yang Shaochun Lin Yue Zhang Meixia An Shixing Hu | 2007 | Neural Regeneration Research2007，2，5： | 1 |
| 17 | Gastrodin modified polyurethane conduit promotes nerve repair via optimizing Schwann cells function显示文摘Peripheral nerve regeneration and functional recovery remain a major clinical challenge.Nerve guidance conduit(NGC)that can regulate biological behavior of Schwann cells(SCs)and facilitate axonal regeneration through microenvironmental remodeling is beneficial for nerve regeneration and functional recovery.Gastrodin,a main constituent of a Chinese traditional herbal medicine,has been known to display several biological and pharmacological properties,especially antioxidative,anti-inflammatory and nerve regeneration.Herein,polyurethane(PU)NGCs modified by different weight ratio of Gastrodin(0,1 and 5 wt%)were designed for sequential and sustainable drug release,that created a favorable microenvironment for nerve regeneration.The scaffold showed suitable pore structure and biocompatibility in vitro,and evidently promoted morphological and functional recovery of regenerated sciatic nerves in vivo.Compared to the PU and 1% Gastrodin/PU scaffolds,the 5% Gastrodin/PU significantly enhanced the proliferation,migration and myelination of SCs and up-regulated expression of neurotrophic factors,as well as induction of the differentiation of PC12 cells.Interestingly,the obvious anti-inflammatory response was observed in 5% Gastrodin/PU by reduced expression of TNF-α and iNOS,which also evidenced by the few fibrous capsule formation in the subcutaneous implantation.Such a construct presented a similarity to autograft in vivo repairing a 10 mm sciatic nerve defects.It was able to not only boost the regenerated area of nerve and microvascular network,but also facilitate functional axons growth and remyelination,leading to highly improved functional restoration.These findings demonstrate that the 5% Gastrodin/PU NGC efficiently promotes nerve regeneration,indicating their potential for use in peripheral nerve regeneration applications. | Hongcai Yang Qing Li Limei Li Shaochun Chen Yu Zhao Yingrui Hu Lu wang Xiaoqian Lan Lianmei Zhong Di Lu | 2022 | Bioactive Materials2022，7，2： | 1 |
| 18 | Anisotropic interpolation and quasi-wilson element for quadrilateral meshes显示文摘 | Chen Shaochun Shi Dongyang Zhao Yongcheng | 2004 | IMA Journal of Numerical Analysis2004，24，： | 1 |
| 19 | Anisotropic interpolations with applications to noncon- forming elements显示文摘 | Chen Shaochun Zhao Yongcheng Shi Dongyang | 2004 | Applied Numerical Mathematics2004，49，2： | 1 |
| 20 | Turning ZrTe_5 into a semiconductor through atom intercalation显示文摘In this study we successfully intercalated potassium(K) atoms into single ZrTe_5 crystals by liquid ammonia method, and found a semimetal-to-semiconductor transition at low temperatures in K-intercalated ZrTe_5. As the K concentration increased, the resistance anomalous peak was gradually suppressed until finally disappearing. Whilst, the corresponding Hall resistance measurements consistently showed a sign reversal. The semimetal-to-semiconductor transition can be attributed to a lattice expansion induced by atom intercalation, leading to a larger energy band gap. | QiYuan Li YangYang Lv JingHui Wang Song Bao Wei Shi Li Zhu WeiMin Zhao ChengLong Xue ZhenYu Jia LiBo Gao YanBin Chen JinSheng Wen YanFeng Chen ShaoChun Li | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，6： | 1 |
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