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Speciation of the elements and compositions on the surfaces of dust storm particles:The evidence for the coupling of iron with sulfur in aerosol during the long-range transport

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Chinese Science Bulletin 2005年第8期50卷 738-744页

作者： ZHANG Xingying1,2. ZHUANG Guoshun1,2.3, CHEN Jianmin2.& XUE Huaxin2.1. Center for Atmospheric Environment Study, department of Chemistry, Beijing Normal university, Beijing 100875,{2. 2. Center for Atmospheric Chemistry Study, department of Environ- mental Science and Engineering, Fudan university, shanghai 2.0433,{2. 3. LAPC/NZC, Institute of Atmospheric physics, NZC/LAPC, Chinese Academy of Sciences, Beijing 10002.,{2. Center for Atmospheric Environment Study Department of Chemistry Beijing Normal University Beijing 100875 China Center for Atmospheric Chemistry Study Department of Environmental Science and Engineering Fudan University Shanghai 200433 China LAPC/NZC Institute of Atmospheric Physics NZC/LAPC Chinese Academy of Sciences Beijing 100029 China

The speciation of the elements on the surface of the particles collected during dust storm and non-dust storm in Beijing and Inner Mongolia was studied by XPS. The ma- jor species of iron on the surface were oxides, sulfate, silicate, FeOOH and minor part sorbed on SiO2.Al2.3. Sulfate is the dominant species of sulfur on the surface. SiO2.and Al2.3 are the main components of Si and Al on the surface respectively. One of the most important findings was that the Fe(II) (FeS and FeSO4) produced could account for up to 44.3% and 45.6% of the total Fe on the surface in the aerosol sample collected at that night and next day of the “peak” time of the dust storm occurring on March 2., 2.02. while Fe2.SO4)3, one of the Fe(III) species on the surface decreased from 67.1% to 49.5% and 48.0% respectively. Both S and Fe en- riched on the surface of aerosol particles. Fe(II) accounted for 1.3%?5.3% of total Fe in bulk aerosol samples during dust storm. These results provided strong evidence to sup- port the hypothesis of the coupling between iron and sulfur in aerosols during the long-range transport, which would have important impact on the global biogeochemical cycle.

关键词：物种形成原理 XPS 大气悬浮物 Fe-S结合粒子集合

Further Results on Finitely Generated Projective Modules

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Acta Mathematica Sinica,English Series 2002年第2期18卷 225-228页

作者： WU Tong Suo department of Applied Mathematics.shanghai Jiaolong {2..shanghai 2.0030,P.R.china E-mail:utsc@*** department of Applied Mathematics Shanghai Jiaotong University Shanghai P. R. China

In this paper,the exchange rings R whose primitive factor rings are artinian are studied. The following results are proved:for any exchange ring R and any two-sided ideal I of R.K_0(π): K_0(R)—K_0(R/I)is a group epimorphism with the kernel{[P]-[Q]|P=PI.Q=QI}:there is an isomorphism of ordered groups from K_v(R)to the group of all such functions f_P:K—Q(P∈p(R)). where X is the set of all primitive ideals of R and Q,the rational integers.

关键词： Exchange rimg K_0-htoupd Atyinisn condition

Mechanical Behavior of Tubular T-joint after Fire

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Journal of shanghai jiaotong university(Science) 2011年第1期16卷 97-104页

作者：靳猛赵金城常静刘明路 School of Naval Architecture Ocean and Civil EngineeringShanghai Jiaotong University Construction and Infrastructure department Shandong Jiaotong University

This paper presents experimental results of the post-fire behavior of tubular *** research aims at the failure modes and the residual strengths of the T-joints after *** tests of full-scale tubular T-joints are *** first one is carried out to study the mechanical behavior of T-joints under ambient *** other two tests are performed to study the influence of pre-load,heating and cooling phase on residual load-bearing capacity of the tubular *** test results show that the sustained axial load on the brace has remarkable influence on the residual deflection of the T-joints which is cooled down to room *** results of the experiments also indicate that the axial load level and heating and cooling history have more significant effects on the compressive stiffness of the T-joints than the residual *** the numerical study,the result of finite element model agrees well with the test *** work in this paper provides a basis for further parametric analysis and theoretical study on the structural evaluation after fire.

关键词： T-joints post-fire residual strength numerical analysis

Quasisymmetric boundary correspondence and Grtzsch problem

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Chinese Science Bulletin 1998年第12期43卷 992-994页

作者： WU Zemin 1 and LAI Wancai 2.1. department of Applied Mathematics, shanghai jiaotong university, {2. 2.02.0, china 2. department of Mathematics, Huaqiao university, Quanzhou 362.11, china

Two necessary and sufficient conditions for the validity of the conjecture K 0(h)=K 1(h) are given, which are independent of the complex dilatations of extremal quasiconformal mappings, where K 0(h) is the maximal conformal modulus dilatation of the boundary homeomorphism h, K 1(h) is the maximal dilatation of extremal quasiconformal mappings that agree with h on the boundary. In addition, when the complex dilatation of an extremal quasiconformal mapping is known, the proof of the result simplifies Reich and Chen Jixiu-Chen Zhiguo’s result.

关键词： quasisymmetric boundary correspondence extremal quasiconformal mapping Grtzsch problem Teichmüller mapping.

Modeling Research on Manufacturing Execution System Based on Large-scale System Cybernetics

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Journal of shanghai jiaotong university(Science) 2008年第6期13卷 744-747页

作者：吴瑜许晓栋李从心 department of Plasticity Technology Shanghai Jiaotong UniversityShanghai 200030China

A cybernetics model of manufacturing execution system(MES CM) was proposed and studied from the viewpoint of *** with the features of manufacturing system, the MES CM was modeled by"generalized modeling"method that is discussed in large-scale system *** mathematical model of MES CM was constructed by the generalized operator model, and the main characteristics of MES CM were analyzed.

关键词： cybernetics manufacturing execution system large scale system

Hydrogenation of CO over carbides of tungsten

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Chinese Journal of Chemistry 1992年第1期10卷 5-9页

作者： QIN,Dai-Yi GAO,Zi department of Chemistry,Fudan university,{2. 2.0433 QIU,Yue-Ming DONG,Shu-Zhong department of Modern physics,Fudan university,{2. 2.0433 1department of Chemistry Fudan University Shanghai 2004332Department of Modern Physics Fudan University Shanghai 200433

CO hydrogenation on tungsten carbides has been *** methanation activities of tungsten carbides are comparable to that of supported Group VIII metal ***- programmed thermal desorption spectra of CO on tungsten carbide ... 详细信息

关键词： Hydrogenation of CO over carbides of tungsten CO over

Topology-aware Overlay Multicast over IP Multicast Networks

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Journal of shanghai jiaotong university(Science) 2008年第1期13卷 91-96页

作者：陈逍邵华钢汪为农 department of Computer Science and Engineering Shanghai Jiaotong University Regional Network Center of East china

Most existing overlay multicast approaches refuse to consider any network layer support no matter whether it is available or not. This design principle greatly increases the complexity of the routing algorithms and makes the overlay topologies incompatible with the underlying network. To address these issues, topology-aware overlay multicast over IP multicast networks (TOMIMN) was proposed as a novel overlay multicast protocol, which exploits the cooperation between end-hosts and IP multicast routers to construct a topology-aware overlay tree. Through a little modification to protocol independent multicast sparse mode (PIM-SM), a multicast router is able to receive registration from nearby group members and redirect passing-by join requests to them. Due to the multicast router's support, TOMIMN organizes its group members into an overlay multicast tree efficiently, which matches the physical network topology well.

关键词： overlay networking network architecture overlay multicast

Is There A Relationship between Polycystic Ovary Syndrome and Endometriosis?

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Journal of Reproduction and Contraception 2011年第3期22卷 177-182页

作者： Xue-ya QIAN Hao WU Xiao-wei XI department of Obstetrics and Gynecology Guangzhou Women and Children＇s Medical Center Guangzhou 510623 China department of Obstetrics and Gynecology Shanghai First people＇s Hospital Affiliated to Shanghai JiaoTong University Shanghai 200011 China

The endocrinologic and metabolic abnormalities of women with polycystic ovary syndrome （PCOS） can result in a series of endometrial diseases. Abnormalities of hyperandrogenism and hyperinsulinemia that may be found in PCOS can elevate the levels of E2.indirectly, reduce progesterone secretion and induce some growth factors such as vascular endothelial growth factor （VEGF） and insulin-like growth factors （IGFs） over expression, which may have a major impact on endometriosis occurrence and development. We suppose that there is a possible connection between PCOS and endometriosis.

关键词： polycystic ovary syndrome (PCOS) endometriosis (EMs) estrogen metabolism growth factors

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基于序列分析的制造车间平面布局设计

上海交通大学学报 2008年第12期42卷 1947-1952,1957页

作者：周瑾吴智铭上海第二工业大学电子与电气工程学院上海201209 上海交通大学自动化系上海200240

给定一个制造车间,把生产每一产品所需要的所有零部件的工序合并构成了一个有序图,即物流网络,称为加工装配图(OPC),其对应的图结构可以抽象为有向树.以这样的有向树为基础,提出通过树的旋转处理算法和序列聚类分析,得到车间的平面布局... 详细信息

给定一个制造车间,把生产每一产品所需要的所有零部件的工序合并构成了一个有序图,即物流网络,称为加工装配图(OPC),其对应的图结构可以抽象为有向树.以这样的有向树为基础,提出通过树的旋转处理算法和序列聚类分析,得到车间的平面布局,并通过一个实际使用范例证实这一方法的有效性.

关键词：平面布局设计制造车间序列分析物流网络聚类分析旋转处理有向树零部件