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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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    Mathematical model for cooling process and its self-learning applied in hot rolling mill

    LIU Wei-weiLI Hai-junWANG Zhao-dongWANG Guo-dong...
    548-552页
    查看更多>>摘要：Control precision of coiling temperature is one of the key factors affecting the profile shape and surface quality during the cooling process of hot rolled steel strip.For this reason,the core of temperature control precision is to establish an effective cooling mathematical model with self-learning function.Starting from this point,a cooling mathematical model with nonlinear structural characteristics is established in this paper for the cooling process of hot rolled steel strip.By the analysis of self-learning ability,key parameters of the mathematical model could be constantly corrected so as to improve temperature control precision and adaptive capability of the model.The site actual application results proved the stable performance and high control precision of the proposed mathematical model,which would lay a solid foundation to improve the steel product qualities.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Numerical simulation of residual stress field induced by laser shock processing with square spot

    CAO Zi-wenCHE Zhi-gangZOU Shi-kunFEI Qun-xing...
    553-556页
    查看更多>>摘要：Laser shock processing (LSP),also known as laser peening,is a novel surface treatment technique in the past few years.Compressive residual stresses which imparted by LSP are very important for improving fatigue,corrosion and wear resistance of metals.Finite element analysis (FEA) simulation using ABAQUS software has been applied to predict residual stresses induced by LSP on Ti-6Al-4V titanium alloy with laser pulse duration 30 ns and water confined ablation mode.The residual stress field generated by different shape laser spots was studied,and the square laser spot is shown the most suitability for avoiding stress lack phenomenon and overlapping LSP.Surface residual stresses and plastically affected depth within single square spot both increased with the increase of laser intensity and laser shock times.Furthermore,compared with circle and ellipse spot,the residual stress distribution in overlapping square spots is very uniform only with small overlapping ratio.LSP with square spot cau process advantageous residual stress field,and this technique will be used widely.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Subdivision surface modeling system based on arbitrary topological curves network and combined subdivision

    HE GangZHU Deng-linLI QianZHANG Min...
    557-561页
    查看更多>>摘要：Arbitrary topological curve network has no restriction in topology structure,so it has more powerful representing ability in defining complex surfaces.A complex surface modeling system is presented based on arbitrary topological curve network and the improved combined subdivision method,its functions including creating and editing curve network,and generating and modifying curve network's interpolated surface.This modeling system can be used to the process of products' concept design,and its applications is also significant to the development of subdivision method.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Direct driven wind energy conversion system based on hybrid excitation synchronous machine

    YE Bin-yingRUAN YiYANG YongZHAO Mei-hua...
    562-567页
    查看更多>>摘要：A novel direct-drive type wind power generation system based on hybrid excitation synchronous machine (HESM)is introduced in this paper.The generator is connected to an uncontrollable rectifier,and a fully controlled voltage-source inverter is used to connect the system to utility grid.An intermediate DC bus exists between the rectifier and inverter.A new control strategy is proposed which achieves the maximum power point tracking (MPPT) with the control of excitation current of HESM and stabilizes the DC link voltage with the control of inverter output current simultaneously.Specially-designed buck circuit is used to control the excitation current of HESM,and grid voltage-oriented vector control strategy is employed to realize the decoupling of the inverter output power.Simulation results and experiment in 3 kW lab prototype show an excellent static and dynamic performance of the proposed system.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    Joint compressive spectrum sensing scheme in wideband cognitive radio networks

    LIANG Jun-huaLIU YangZHANG Wen-jun
    568-573页
    查看更多>>摘要：In this paper,a distributed compressive spectrum sensing scheme in wideband cognitive radio networks is investigated.An analog-to-information converters (AIC) RF front-end sampling structure is proposed which use parallel low rate analog to digital conversions (ADCs) and fewer storage units for wideband spectrum signal sampling.The proposed scheme uses multiple low rate congitive radios (CRs) collecting compressed samples through AICs distritbutedly and recover the signal spectrum jointly.A general joint sparsity model is defined in this scenario,along with a universal recovery algorithm based on simultaneous orthogonal matching pursuit (S-OMP).Numerical simulations show this algorithm outperforms current existing algorithms under this model and works competently under other existing models.
      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普

    FARMER: A novel approach to file access correlation mining and evaluation reference model

    XIA PengFENG DanWANG Fang
    574-588页
    查看更多>>摘要：File semantic has proven effective in optimizing large scale distributed file system.As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems,file system can provide useful and insightful information about semantic.Hence,file semantic mining has become an increasingly important practice in both engineering and research community.Unfortunately,it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process.Even worse,the challenges are exacerbated due to the intricate interdependency between these factors,and make it difficult to fully exploit the potentially important correlation among various semantic knowledges.This article proposes a file access correlation miming and evaluation reference (FARMER) model,where file is treated as a multivariate vector space,and each item within the vector corresponds a separate factor of the given file.The selection of factor depends on the application,examples of factors are file path,creator and executing program.If one particular factor occurs in both files,its value is non-zero.It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors.Benefit from this model,FARMER represents files as structured vectors of identifiers,and basic vector operations can be leveraged to quantify file correlation between two file vectors.FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the "bad knowledge" can be filtered out.To demonstrate the ability of new FARMER model,FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations.In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented.Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30％-40％ when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Information for Authors

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      原文链接:
    • NETL
    • NSTL
    • 万方数据
    • 维普