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Central limit theorem for the occupation time of catalyticsuper-Brownian motion

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Chinese Science Bulletin 1998年第24期43卷 2035-2040页

作者： HONG Wenming Department of mathematics, Beijing Normal University, Beijing 100875, China Corresponding address: institute of mathematics, shantou University, shantou 515063, China Department of mathematics Beijing Normal University Beijing China

The catalytic super_Brownian motion has been considered. If both the catalytic medium process Q and CSBM started with Lebesgue measure λ, the central limit theorem for occupation time of CSBM has been obtained in dim... 详细信息

关键词： branching rate functional Brownian collision local time catalytic super_Brownian motion occupation time central limit theorem.

Divergence-free Hardy space on R_(+)^(N)

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Science China mathematics 2004年第2期47卷 198-208页

作者： LOU Zengjian & Alan Mclntoshinstitute of mathematics, {2. University, shantou 515063, China (email: zjlou@***)Center for mathematics and Its Applications, Mathematical Science institute, Australian National University, Inst. of Math. Shantou Univ. Shantou 515063 China Ctr. for Math. and Its Appl. Math. Sci. Inst. Australian Natl. Univ. Canberra ACT 0200 Australia

We introduce a divergence-free Hardy space Hz1,div(RN+,RN) and prove its divergence-free atomic decomposition. We also characterize its dual space and establish a 'div-curl' type theorem on R+3 with an application to ... 详细信息

关键词： divergence-free Hardy space atomic decomposition BMO.

Exogenous carbon acquisition of photosynthesis in Porphyra haitanensis (Bangiales, Rhodophyta) under emersed state

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Progress in Natural Science:Materials International 2004年第2期 42-48页

作者： ZOU Dinghui 1* and GAO Kunshan 1,2. (1. Marine Biology institute, Science Center, shantou University, Guangdong {2., China 2. institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072. China) Marine Biology institute，Science Center，shantou University，Guangdong {2.，China Marine Biology institute，Science Center，shantou University，Guangdong {2.，China institute of Hydrobiology，Chinese Academy of Sciences，Wuhan 430072.China

The photosynthetic performances of Porphyra haitanensis thalli were investigated in order to understand its mechanisms for exogenous carbon acquisition during emersion at low tide. The emersed photosynthesis was studied by altering the pH value in the water film on the thalli surface, treating them with carbonic anhydarase inhibitors (acetazolamide and 6-ethoxyzolamide), adjusting the CO 2.concentrations in the air, and comparing the theoretical maximum CO 2.supply rates within the adherent water film with the observed photosynthetic CO 2.uptake rates. It was found that the principal exogenous inorganic carbon source for the photosynthesis of P. haitanensis during emersion was atmospheric CO 2. The driving force of CO 2.flux across the water film was the CO 2.concentration gradient within it. Carbonic anhydrase accelerated both extracellular and intracellular CO 2.transport. The emersed photosynthesis of P. haitanensis was limited by the present atmospheric CO 2.level, and would be enhanced by atmospheric CO 2.rise that would trigger global warming.

关键词： Porphyra haitanensis carbon dioxide photosynthesis emersion carbonic anhydrase.

Multi-parameter infinite-dimensional(r,δ)-OU process

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Chinese Science Bulletin 1999年第5期44卷 418-423页

作者： WANG Zikuninstitute of mathematics, {2. University, shantou 515063, China Department of mathematics, Beijing Normal University, Beijing 100875, China institute of mathematics Shantou University Shantou China Department of mathematics Beijing Normal University Beijing China

The definition of n-parameter infinite-dimensional (r, δ) -Ornstein-Uhlenbeck process {X_t (·)}((r,δ)-OUP_n~∞ for short) is given. The absolute continuity of distribution μ_t of X_t(·) and the limit of X_t(·) w... 详细信息

关键词： multi-parameter (r δ)-OUPn∞ absolute continuity in hierarchy.

The Eigen Functions of the Complex Projective Space

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Acta Mathematica Sinica,English Series 1998年第1期14卷 1-8页

作者： Lu Qikeng institute of mathematics, Academia Sinica, Beijing 100080, China institute of mathematics, shantou University, shantou 515063, China

In the complex n-dimensional projective space CP^n. let λ_p(=4p(p+n)) be the eigen vaiue of the Laplace-Beltrami operator and H_p be the space of all eigen functions of eigen value λ_p. The reproducing kernel h_p(z, w) of H_p is constructed explicitly in this paper. and a system of complete orthogohal functions of H_p is construncted from h_p(z, w)(p=1,2.).

关键词： Complex projective space Reproducing kernel of eigen function

Adaptive Control for A Class of Nonlinear Uncertain Systems Based on Fuzzy Logic System

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Adaptive Control for A Class of Nonlinear Uncertain Systems ...

智能计算及其应用国际会议

作者： WANG Wenli 1 LI Zhiyuan2.WANGYinhe1 (1. Department of mathematics shantou University shantou 515063 China) (2. Department of mathematics Inner Mongolia Normal University Huhuhot 01002. China)

We suggest a nonlinear controller and adaptive law design method by using fuzzy logic system for a general class of nonlinear uncertain systems with unknown bounds of uncertainties. The robust control

关键词： uncertainty fuzzy logic system adaptive law UUB

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cnki会议

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广州西塔风致响应和气动阻尼特性的试验研究

土木工程学报 2009年第7期42卷 58-64页

作者：嵇学培谢壮宁李小康汕头大学广东汕头515063 华南理工大学亚热带建筑科学国家重点实验室广东广州510641

在边界层风洞中对432.高的广州珠江新城西塔进行多自由度气动弹性模型试验,并和刚性模型的高频底座力天平(HFBB)结果作比较,采用随机减量技术(RDT)识别该超高层建筑的气动阻尼特性。结果显示:在采用相同的阻尼比情况下,气弹模型和HFBB... 详细信息

在边界层风洞中对432.高的广州珠江新城西塔进行多自由度气动弹性模型试验,并和刚性模型的高频底座力天平(HFBB)结果作比较,采用随机减量技术(RDT)识别该超高层建筑的气动阻尼特性。结果显示:在采用相同的阻尼比情况下,气弹模型和HFBB的结果具有较好的一致性;西塔的横风向气动阻尼基本上均为正数,在低风速段随风速的增加而增加,在梯度风风速为45.4m/s时达到最大值为1.75%,随后在临界风速附近急剧下降,在51m/s时降到最小值,约为-0.06%。得出的一些结果可以作为西塔抗风设计参考的依据。

关键词：高层建筑气动阻尼风致响应风洞试验随机减量技术

Superprocesses arising from interactive stochastic flows

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Science China mathematics 2006年第4期49卷 451-476页

作者： YAN Guojun & LI Zhanbing Medical School, shantou University, shantou 515063, China Department of {2., Bejing Normal University, Beijing 100875, China Medical School Shantou University Shantou China Department of mathematics Bejing Normal University Beijing China

In this paper, we give a unified construction for superprocesses with dependent spatial motion constructed by Dawson, Li, Wang and superprocesses of stochastic flows constructed by Ma and Xiang. Furthermore, we also g... 详细信息

关键词： superprocess, interactive stochastic flows, martingale problem, dual processes.

Raising approximation order of refinable vector by increasing multiplicity

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Science China mathematics 2006年第1期49卷 86-97页

作者： YANG Shouzhi & PENG Lizhong Department of mathematics, shantou University,{2., China LMAM, School of Mathematical Sciences, Peking University, Beijing 100871, China Department of mathematics Shantou University Shantou China LMAM School of Mathematical Sciences Peking University Beijing China

An algorithm is presented for raising an approximation order of any given orthogonal multiscaling function with the dilation factor a. Let φ(x) = [φ1(x),φ2.x),…,φr(x)]T be an orthogonal multiscaling function with the dilation factor a and the approximation order m. We can construct a new orthogonal multiscaling function φnew(x) = [ φT(x). f3r+1(x),φr+2.x),…,φr+s(x)}T with the approximation order m + L(L ∈ Z+). In other words, we raise the approximation order of multiscaling function φ(x) by increasing its multiplicity. In addition, we discuss an especial setting. That is, if given an orthogonal multiscaling function φ(x) = [φ1 (x), φ2.x), …, φr(x)]T is symmetric, then the new orthogonal multiscaling function φnew(x) not only raise the approximation order but also preserve symmetry. Finally, some examples are given.

关键词： orthogonal, multiscaling functions, approximation order, symmetry.