检索结果-南通市图书馆

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

皮下注射药物动力学的参数识别

山东大学学报（自然科学版） 1991年第4期26卷 401-408页

作者：张劲山东大学数学系

本文引入了刻划皮下注射药物动力学过程的参数K_c、K_d、K_i和K_h,给出了用这4个参数表达药物在皮下组织中的平均停留时间MRT、时间方差VRT以及延迟时间T_L的关系式,并在理论上提出了用在体数据确定以上4个动力学参数的方法.

关键词：皮下吸收药物动力学统计矩

A　Fifth-order　Accurate　Weighted　ENN　Difference　Scheme

在线全文

学校读者我要写书评

暂无评论

Communications in Nonlinear Science and Numerical Simulation 1997年第2期2卷 55-59页

作者： Yiqing SHEN & Ruquan WANG (department of math.matics, Yunnan university) (Institute of Computational math.matics and Scientific/Engineering Computing,Academia Sinica) department of math.matics Yunnan University Kunming 650091 China Inst. of Compl. math. and Scientific Engineering Computing Academia Sinica Beijing 100080 China

ＡＦｉｆｔｈ－ｏｒｄｅｒＡｃｃｕｒａｔｅＷｅｉｇｈｔｅｄＥＮＮＤｉｆｅｒｅｎｃｅＳｃｈｅｍｅ１，２ＹｉｑｉｎｇＳＨＥＮ＆ＲｕｑｕａｎＷＡＮＧ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＹｕｎｎａｎＵｎｉｖｅｒｓ... 详细信息

ＡＦｉｆｔｈ－ｏｒｄｅｒＡｃｃｕｒａｔｅＷｅｉｇｈｔｅｄＥＮＮＤｉｆｅｒｅｎｃｅＳｃｈｅｍｅ１，２ＹｉｑｉｎｇＳＨＥＮ＆ＲｕｑｕａｎＷＡＮＧ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＹｕｎｎａｎＵｎｉｖｅｒｓｉｔｙ）（ＩｎｓｔｉｔｕｔｅｏｆＣ...

关键词： ENN scheme WENO scheme

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

二阶椭圆型方程的广义差分法

山东大学学报（自然科学版） 1991年第4期26卷 391-400页

作者：梁栋山东大学数学系

本文利用依赖格网范数,讨论了n维区域上二阶椭圆型方程的广义差分法的抽象变分问题,一般性地研究了广义差分法,并提出了非协调广义差分法,证明了3维区域上一类广义差分格式和2维区域上二类非协调广义差分格式的存在性和收敛性.

关键词：椭圆型方程广义差分法变分问题

FOURIER　PSEUDOSPECTRAL－FINITE　DIFFERENCE　METHOD　FOR　TWO－DIMENSIONAL　VORICITY　EQUATION

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of math.matics,Series B 1994年第4期15卷 469-488页

作者： GUO BENYU XIONG YUESHAN(department of math.matics,Shanghai university of Science and Technology f Shanghai 201800,China.) SHANGHAI UNIV SCI & TECHNOL DEPT MATHSHANGHAI 201800PEOPLES R CHINA

A Fourier pseudospectral-finite difference sheme is proposed for solving two-dimensionalvorticity equations. The generalized stability and the convergence are *** numericalresults are given.

关键词： Vorticity equation Fourier pseudospectral-finite difference method Generalized stability Convergence.

Lp（ [0, 1]）-characterizations of multi-knot piecewise linear spectral sequences

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2006年第7期16卷 684-690页

作者： LIAN Qiaofang, CHENG Linfeng, and YAN Dunyan ( department of math.matics, Beijing Jiaotong university, Beijing 100044, China department of math.matics, China university of Mining and Technology, Xuzhou 221008, China School of Information Science and Engineering, Graduate university of Chinese Academy of Sciences, Beijing 100080, China) Chinese Acad Sci Sch Informat Sci & Engn Beijing 100080 Peoples R China China Univ Min & Technol Xuzhou 221008 Peoples R China Beijing Jiaotong Univ Dept Math Beijing 100044 Peoples R China

There exists a class of new orthonormal basis for L2([0, 1]), whose exponential parts are multi-knot piecewisf linear functions called spectral sequences. In this paper, we show that these bases constitute bases, but not unconditional bases, for Lp([0, 1 ]) with 1更多还原AbstractFilter('ChDivSummary', 'ChDivSummaryMore', 'ChDivSummaryReset');

关键词： exponential bases multi-knot piecewise linear spectral sequences unconditional bases.

Stochastic DEA model with undesirable outputs: An application to the prediction of anti-HIV therapy efficiency

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2006年第7期16卷 753-759页

作者： BIAN Fuping and TANG Xiaoqin ( department of math.matics, School of Science, Tianjin university, Tianjin 300072, China Liuhui Institute of Applied math.matics, Nankai university and Tianjin university, Tianjin 300072, China) Tianjin Univ Sch Sci Dept Math Tianjin 300072 Peoples R China Nankai Univ Liuhui Inst Appl Math Tianjin 300072 Peoples R China

This paper proposes a stochastic prediction DEA model with undesirable outputs and simplifies the process using chance-constrained techniques in order to obtain an equivalent linear programming formulation. The existence and stability of the optimal solutions have been proved. And the model is used to describe and predict the efficiency of anti-HIV therapy in AIDS patients.

关键词： data envelopment analysis (DEA) decision making units (DMU) undesirable outputs stochastic DEA model anti-HIV therapy.

The structure of L*-inverse semigroups

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China math.matics 2006年第8期49卷 1065-1081页

作者： REN Xueming & SHUM Karping department of math.matics, Xi’an university of Architecture and Technology, Xi’an 710055, China Faculty of Science, The Chinese university of Hong Kong, Hong Kong, China department of math.matics Xi'an University of Architecture and Technology Xi'an 710055 China Faculty of Science The Chinese University of Hong Kong Hong Kong Hong Kong

The concepts of L*-inverse semigroups and left wreath products of semigroups are introduced. It is shown that the L*-inverse semigroup can be described as the left wreath product of a type A semigroupΓand a left regular band B together with a mapping which maps the semigroupΓinto the endomorphism semigroup End(B). This result generalizes the structure theorem of Yamada for the left inverse semigroups in the class of regular semigroups. We shall also provide a constructed example for the L*-inverse semigroups by using the left wreath products.

关键词： L*-inverse semigroups type A semigroups left regular bands left wreath products.

Dual Space, Carleson Measure and Sequence Interpolation on A^p(φ)(0

在线全文

学校读者我要写书评

暂无评论

Acta mathematica Sinica,English Series 1994年第2期10卷 192-201页

作者： Xiao Jie department of math.matics Peking university Beijing, 100871 China

Let D={z∈: |z|<1} and φ be a normal function on [0, 1). For p∈(0, 1) such a function φ is used to define a Bergman space A^p(φ) on D with weight φ~p(|·|)/(1-|·|~2). In this paper, the dual space of A^p(φ) is given, four characteristics of Carleson measure on A^p(φ) are obtained. Moreover, as an application, three sequence interpolation theorems in A^p(φ) are derived.

关键词： Carleson Measure and Sequence Interpolation on A~p Dual Space p<1 math

在线全文

学校读者我要写书评

暂无评论

高维Jorgensen不等式的应用

吉首大学学报 1999年第2期20卷 28-30页

作者：戴滨林湘潭大学数学系湘潭411105

应用高维Jorgensen不等式得到了如下定理 :设g、h∈M( Rn) ,g是严格抛物元 ,是离散群 ,g和h无公共不动点 ,那么对 x∈Hn+ 1,sinh 12 ρ(x ,gx)sinh 12 ρ(x ,hgh- 1x)≥ 14。

关键词：离散群 J不等式灭比乌斯群公共不动点