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上海大学学报(英文版)
上海大学学报(英文版)

戴世强

季刊

1007-6417

jpsu_l@staff.shu.edu.cn

021-66135218

200444

上海市宝山区上大路99路上海大学124信箱

上海大学学报(英文版)/Journal Journal of Shanghai University(English Edition)
查看更多>>《Journal of Shanghai University》是在钱伟长校长的大力倡导和支持下于1997年6月创刊的。本刊由上海大学出版社出版,《上海大学学报》(英文版)编委会编辑, 上海大学期刊社发行。本刊设有“Reviews”,“Articles”,“Letters”,“Abstracts of Doctoral Dissertations”等栏目,报道范围涉及自然科学与工程技术的多种领域,主要有“应用数学和力学”,“信息技术”,“机电工程与自动化”,“材料科学与工程”等领域。 本刊重视学术论文的创新性。钱校长在本刊发刊词中把科研成果分为三类:第一类用新理论新方法解决新问题;第二类用新理论新方法解决老问题或用已有理论和方法解决新问题;第三类用已有理论和方法解决老问题。本刊将优先刊登第一类学术论文,也发表一些第二类学术论文,而不采用第三类论文。本刊只刊出未在正式刊物上公开发表过的研究论文。 本刊除刊登上海大学教师和研究生的最新研究成果外,也刊登其它高校及科研院所专家学者们的优秀学术论文,而且在论文的筛选和刊出上一视同仁。本刊尤其欢迎国家自然科学基金课题和国家“八六三”项目的研究论文以及海外留学生的研究论文,也欢迎资深学者的专题综述文章, 本刊也以“Letters”的形式报道学者们的阶段性研究成果。本刊主要向国外发行,向国外近20家文献检索刊物和数据库及近百所大学图书馆按期寄送。到目前为止,本刊已被国际多家重要检索刊物或数据库收录。它们是美国的“工程索引”(EI Page One),英国的“科学文摘”(SA-INSPEC),俄罗斯的“文摘杂志”(РЖ),日本的“科学技术文献速报”(CBST),美国的“剑桥科学文摘”(CSA),美国的“数学评论”(MR),美国的“应用力学评论”(AMR),德国的“数学文摘”(ZBI),美国的“化学文摘”(CA)等的收录期刊。本刊同时被国内4家全文数据库和多家专业文摘刊物收录。欢迎国内外专家学者投稿,有关投稿的具体要求见本刊征稿简则。本刊国内外公开发行, 可通过天津联合征订服务部、北京人天书店征订,也可直接向上海大学期刊社征订。
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    Reconstruction method of differentiated backprojection-projection onto convex sets in the interior problem and design of bone-nail model

    L(U) Dong-huiSHI An-sheng
    131-136页
    查看更多>>摘要:This work focuses on the application of the reconstruction method of differentiated backprojection(DBP)-projection onto convex sets(POCS)in the interior problem.First,we present the definition of the interior problem and real truncated Hilbert transform,and then outline the implementation steps of DBP-POCS.After that,we introduce the middle-part known condition for region of interest(ROI)accurate reconstruction and the unique condition of the interior problem,and verify the uniqueness and stability of the interior problem accurate reconstruction through numerical experiments,and then compare the results for the interior problem in reconstruction images using filtered backprojection(FBP).In addition,the authors also design the application models of ROI reconstruction and make an initial attempt to the application of DBP-POCS method in the interior problem.

    Lipases in the castor bean seed of Chinese varieties: Activity comparison,purification and characterization

    SU Er-zhengZHOU YingYOU Peng-yongWEI Dong-zhi...
    137-144页
    查看更多>>摘要:The lipase activities in the three main Chinese castor bean varieties[ZiBi 05(ZB 5),TongBi 06(TB 6),JinBi 02(JB 2)]were investigated.Two lipases were found in extracts from the endosperms of all the three varieties.One lipase is located in the lipid bodies.showing higher activity at pH 4.5 and exhibiting the highest activity at day 1 of germination.The other lipase is located in the particulates.showing higher activity at pH 9.5 and particularly active at day 4 of germination.The lipid bodies from ZB 5 show the highest lipase activity at day 1 and pH 4.5 among the three varieties during the 8 d of germination.The acid lipase located in the lipid bodies of ZB 5 of germination 1 d Was purified to homogeneity by DEAE-sepharose CL-6B and butyl-sepharose CL-4B chromatography after isolation,delipidation and solubilization,with a purification factor of 16.1 and overall activity recovery of 17.7%.The characterizations(such as optimum pH,pH stability,optimum temperature,thermal stability,effect of metal ions,organic solvents stability,substrate specificity)of the purified acid lipase were conducted in detail.A combination of the characterized properties may make this enzyme a useful biocatalyst for industrial application.

    Modified surface tension model for free surface flow with single-phase lattice Boltzmann method

    YAN Yong-huaYANG FanQIAN Zhong-dongQIAN Yue-hong...
    145-149页
    查看更多>>摘要:A single-phase lattice Boltzmann model with modified surface tension is developed in this paper to solve the problem of high-density-ratio free surface flow.The computational efficiency and accuracy are both enhanced.The restriction to the relaxation factor(which needs to be smaller than 1)is circumvented by the new surface tension algebra,due to its rational physical nature compared with the treatment of Xing,Buther and Yang in their paper(Comp.Mater.Sci.,2007,39(2):282-290).The proposed stable surface tension scheme is applied to simulate the free deformation of a square droplet with surface tension effect and the process of a droplet impinging on a liquid film.The numerical solution for free deformation of a droplet agrees well with thermodynamic principles,and also achieves high accuracy in comparison with Xing,et al.'s model.Three typical impinging modes are successfully obtained with the new scheme,and another particular mode found by Wang and Chen is also successfully simulated.The evolutions of liquid crown agree well with the power law related to time.

    Global optimality conditions for quadratic 0-1 programming with inequality constraints

    ZHANG Lian-shengCHEN WeiYAO Yi-rong
    150-154页
    查看更多>>摘要:Quadratic 0-1 problems with linear inequality constraints are briefly considered in this paper.Global optimality conditions for these problems,including a necessary condition and some sufficient conditions,are presented.The necessary condition is expressed without dual variables.The relations between the global optimal solutions of nonconvex quadratic 0-1 problems and the associated relaxed convex problems are also studied.

    On 3-diameter-stable graphs of diameter 4

    XU Cheng-deGU Rui
    155-156页
    查看更多>>摘要:In this paper we give a necessary and sufficient condition for a graph G with diameter 4 to be 3-diameter-stable.This result extended some known results.

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