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A theorem on the transcendency of a function

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Chinese Science Bulletin 1998年第1期43卷 24-27页

作者： YU Xiuyuan hangzhou teachers college, hangzhou 310012, china hangzhou teachers college Hangzhou China

For the transcendency of the limit of a sequence of algebraical functions, a theorem is given.

关键词： algebraical functions limit transcendency.

SOME FUNCTIONAL LIMIT THEOREMS FOR THE INFINITE SERIES OF OU PROCESSES

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Chinese Annals of Mathematics,Series B 2003年第2期24卷 249-260页

作者： WANG WENSHENG LIN ZHENGYAN Department of Mathematics, zhejiang University, hangzhou 310028, china. Department of Mathematics, hangzhou Teacher’s college, hangzhou 310012, china. E-mail: wswang@*** Department of Mathematics, zhejiang University, hangzhou 310028, china. Department of Mathematics Zhejiang University Hangzhou 310028 China Department of Mathematics Hangzhou Teacher's College Hangzhou 310012 China

This paper obtains functional modulus of continuity and Strassen's functional LIL of theinfinite series of independent Ornstein-Uhlenbeck processes, which also imply the Levy's exactmodulus of continuity and LIL of th... 详细信息

关键词： Ornstein-Uhlenbeck processes Stationary Gaussian processes Modulus of continuity Law of the iterated logarithm

Cysteinyl leukotriene receptor 1 partially mediates brain cryoinjury in mice

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Acta Pharmacologica Sinica 2007年第7期28卷 945-952页

作者： Qian DING~2,San-hua FANG~2,Yu ZHOU~2,Li-hui ZHANG~3,Wei-ping ZHANG~2,Zhong CHEN~2,Er-qing WEI~(2,4)~2 Department of Pharmacology,School of Medicine,zhejiang University,hangzhou 310058,china ~3 Department of Pharmacology,Schoolof Medicine,hangzhou teachers college,hangzhou 310012,china Department of Pharmacology School of Medicine Zhejiang University Hangzhou China Department of Pharmacology School of Medicine Hangzhou Teachers College Hangzhou China

Aim:To determine whether the cysteinyl leukotriene receptor 1（CysLT1receptor）modulates brain cryoinjury and whether the CysLT1receptor antagonist pranlukastexerts a time-dependent protective effect on cryoinjury in ***:Braincryoinjury was induced by applying a liquid nitrogen-cooled metal probe to thesurface of the skull for 30 *** lesion,neuron density,and endogenous IgGexudation were observed 24 h after *** and the expressionof the CysLT1receptor were detected by RT-PCR and immunoblotting,and thelocalization of the receptor protein by double ***:ThemRNA and protein expressions of the CysLT1receptor were upregulated in thebrain 6-24 h after cryoinjury,and the CysLT1receptor protein was primarily local-ized in the neurons,not in the astrocytes or ***-injury treatments withmulti-doses and a single dose of pranlukast （0.1 mg/kg） attenuated cryoinjury;postinjury single dose （0.1 mg/kg） at 30 min （not 1 h） after cryoinjury was ***:The CysLT1receptor modulates cryoinjury in mice at leastpartly,and postinjury treatment with its antagonist pranlukast exerts the protec-tive effect with a therapeutic window of 30 min.

关键词： cysteinyl leukotriene receptor antagonist pranlukast cryoinjury neuroprotection

INTERPLAY BETWEEN FRENKEL EXCITONS AND PHOTONS

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厦门大学学报（自然科学版） 1993年第S2期32卷 109-114页

作者： Li Baoxing(Physics Department, hangzhou teachers’ college 310012) 杭州师范学院浙江杭州

We investigate the effect of photons and phonons on Frenkel exciton spectrum. The Hamilto nian for a coupled system of the Frenkel excitons. the photons and the phonons is derived. The phonon-exciton interaction makes the energy band of the Frenkel excitons narrow. The photons and the Frenkel excitons make up Frenkel exciton polaritons which are quasi-particles. The Frenkel exciton polariton spectrum consists of two branches. It is found that the photon-exciton interaction makes the ground energy of the Frenkel excitons increase.

关键词： exciton Frenkel phonon branches Hamiltonian photon narrow quasi operators insulating

Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications

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Journal of Systematics and Evolution 2009年第2期47卷 123-138页

作者： 1,2Yue-Jiao ZHANG 1Xiao-Feng JIN 3Bing-Yang DING 4Jing-Ping ZHU 1(School of Life & Environment Sciences,hangzhou Normal University,hangzhou 310036,china) 2(college of Life Sciences,zhejiang University,hangzhou 310012,china) 3(School of Life & Environment Sciences,Wenzhou University,Wenzhou 325027,china) 4(Center of Analysis & Measurement,zhejiang University,hangzhou 310028,china) School of Life & Environment Sciences Hangzhou Normal University Hangzhou 310036 China college of Life Sciences Zhejiang University Hangzhou 310012 China School of Life & Environment Sciences Wenzhou University Wenzhou 325027 China Center of Analysis & Measurement Zhejiang University Hangzhou 310028 China

Eighty-four pollen samples were obtained for 80 taxa,of which,13 species and one variety are from *** Sweet,58 species and two varieties from *** Sweet,and six species from ***(***) Pojarkova,*** morphology of all samples was observed using LM and *** grains are revealed to be spheroidal and tetrahedral with tricolporate *** sizes of ***(Sweet) Pojarkova range from 37.67 μm to 61.06 μm,and the exine sculptures are more or less compactly *** sizes are significantly different between *** and *** of *** tashiroi *** *** Sleumer shows a close affinity to *** size and exine are consistent with general morphology in differentiating species in *** huadingense *** & ***,once placed as a member of ***,should be considered as a species in ***.

关键词： Ericaceae Rhododendron subgen.Tsutsusi pollen morphology tetrahedral tetrads systematic implication

How big are the Csorgo-Revesz increments of two-parameter Wiener processes?

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Science china Mathematics 2004年第6期47卷 894-907页

作者： WANG WenshengDepartment of Mathematics, hangzhou Teacher’s college, hangzhou 310012, china Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100080, china Dept. of Math. Hangzhou Teacher's Coll. Hangzhou 310012 China Inst. of Appl. Math. Chinese Acad. of Sci. Beijing 100080 China

In this paper, we prove a theorem on the set of limit points of the increments of a two-parameter Wiener process via establishing a large deviation principle on the increments of the two-parameter Wiener process.

关键词： two-parameter Wiener process increment functional law of the iterated logarithm large deviation.

NECESSARY AND SUFFICIENT CONDITION OF THE STRONG CONVERGENCE FOR TWO FINITE FAMILIES OF UNIFORMLY L-LIPSCHITZIAN MAPPINGS

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Acta Mathematica Scientia 2011年第5期31卷 2058-2066页

作者：谷峰 Institute of Applied Mathematics and Department of Mathematics hangzhou Teacher's college

The purpose of this paper is to study necessary and su？cient condition for the strong convergence of a new parallel iterative algorithm with errors for two finite families of uniformly L-Lipschitzian mappings in Bana... 详细信息

关键词： asymptotically pseudo-contractive mapping uniformly L-Lipschitzian map- ping parallel iterative algorithm

Exact Rates of Convergence of Functional Limit Theorems for Csorgo-Revesz Increments of a Wiener Process

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Acta Mathematica Sinica,English Series 2002年第4期18卷 727-736页

作者： Wen Sheng WANG Department of Mathematics. zhejiang University, hangzhou 310028, P. R. china Department of Mathematics. hangzhou Teacher’s college. hangzhou 310012. P. R. china Department of Mathematics Zhejiang University Hangzhou 310028

Let {W(t): t≥0} be a standard Wiener process and S be the Strassen set of functions. We investigate the exact rates of convergence to zero (as T→∞) of the variables sup_(0≤≤T-a_T inf_(f∈S sup_(0≤r≤1 |Y_t, T(x)-f(x)] and inf_(0≤t≤T-a_T sup_(0≤x≤1|Y_(t.T)(x)-f(x)| for any given f∈S, where Y_(t.T)(x)=(W(t+xa_T)-W(t))(2a_T(logTa_T^(-1)+log logT))^(-1/2). We establish a relation between how small the increments are and the functional limit results of Csrg-Revesz increments for a Wiener process. Similar results for partial sums of i.i.d, random variables are also given.

关键词： Wiener process Csorgo-Revesz increment Strassen's law of the iterated logarithm

Group sparse representation for image categorization and semantic video retrieval

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Science china(Information Sciences) 2011年第10期54卷 2051-2063页

作者： LIU YaNan 1,2 ,WU Fei 2 & ZHUANG YueTing 2 1 School of Information,zhejiang University of Finance & Economics,hangzhou,310018,china 2 college of Computer Science and Technology,zhejiang University,hangzhou,310012,china School of Information Zhejiang University of Finance & Economics Hangzhou China college of Computer Science and Technology Zhejiang University Hangzhou China

Multimedia content analysis and management are a promising and challenging *** this paper we develop a novel approach to image representation,which we call group sparse representation (GSR),for image classification and video *** basic idea is to represent a test image as a weighted combination of all the training *** particular,we introduce two sets of weight coefficients,one for each training image and the other for each ***,we formulate our concern as a group nonnegative garrote *** resulting representations are sparse,and they are appropriate for discriminant *** on Caltech101 and PASCAL VOC2008 image dataset and TRECVID2005 video corpus testify that our proposed approach is efficient and effective.

关键词： compressive sensing group sparse representation bag-of-SIFT-words nonnegative garrote l1-minimization apcluster