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[期刊论文] 作者:RenXin′an XuHongwei, 来源:高校应用数学学报:英文版 年份:2004
Let M be an n-dimensional compact Riemannian manifold with or without boundary,and its Ricci curvature RicM≥n- 1. The paper obtains an inequality for the first...
[期刊论文] 作者:Lian Ruan, 来源:图书馆建设 年份:2004
图书馆通常注重制定馆藏计划,但忽略战略远景规划;即便制定了规划计划,总得不到贯彻执行.有的图书馆并没有从满足用户需求、确保完成主管单位(母机构)使命的角度出发来确立起...
[期刊论文] 作者:RUAN Hang-Yu, 来源:理论物理通讯(英文版) 年份:2004
A variable separation approach is used to obtain exact solutions of the (2+1)-dimensional generalized Nizhnik-Novikov-Veselov equation. Two of these exact solut...
[期刊论文] 作者:RUAN Shi-ping, 来源:水动力学研究与进展B辑 年份:2004
On the basis of model tests and theoretical analysis, hydraulic characteristics, air demand, air concentration distribution and their relationships between...
[期刊论文] 作者:Renxin ZHONG,Zhi YANG,Guoli WANG, 来源:控制理论与应用(英文版) 年份:2004
The delay-dependent robust stability of uncertain linear neutral systems with delays is investigated. Both discrete-delay-dependent/neutral-delay-independent an...
[期刊论文] 作者:XU Renxin,CHEN Wen,ZHOU Jing,L, 来源:武汉理工大学学报(材料科学版)英 年份:2004
Lead zirconate titanate (PZT)/polyvinylidenc fluoride (PVDF) 0- 3 piezoelectric composites doped with polyaniline (PANI) were obtained by hot-press method.The p...
[期刊论文] 作者:RUAN Jian-ming,M.H.Grant, 来源:中南工业大学学报 年份:2004
Exclusion and imflammation in the clinic are observed for various reasons including material chemical composition, physical properties as well as macro- and mic...
[期刊论文] 作者:RUAN Yun-jun,QUI Jian, 来源:实用预防医学 年份:2004
目的 观察大鼠动脉超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量的增龄性变化及脱氢表雄酮(DHEA)的干预作用.方法 实验分三组:18月龄鼠组;DHEA干预鼠组(18月龄,12月龄时开始在...
[期刊论文] 作者:ZHAO Zhong-xiang,RUAN Jin-lan,, 来源:中草药(英文版) 年份:2004
Objective To study the chemical constituents of Abacopteris penangiana.Methods The compounds were separated and purified by various chromatographic techniques a...
[期刊论文] 作者:WU Jian-hua,RUAN Shi-ping, 来源:水动力学研究与进展B辑 年份:2004
Aerator is an important device for release works of hydraulic structures with high-speed flow in order to protect them from cavitation damage. This kind of prot...
[期刊论文] 作者:Jianxian CAI,Xiaogang RUAN, 来源:控制理论与应用(英文版) 年份:2004
This paper presents an OCPA (operant conditioning probabilistic automaton) bionic autonomous learning system based on Skinners operant conditioning theory for s...
[期刊论文] 作者:Ma Limin,Ruan Linhai, 来源:国际转化医学杂志(英文版) 年份:2004
Objective:To provide a more robust assessment to the effect of cytochrome P2D6 (CYP2D6) polymorphisms on the risk of acute leukemia (AL), and to evaluate the as...
[期刊论文] 作者:ZHOU Zhong-cheng,RUAN Jian-min, 来源:中南工业大学学报(英文版) 年份:2004
Poly(D,L-lactide) was synthesized by indirect method from D,L-lactic acid and characterized by infrared spectrum and proton nuclear magnetic resonance. The infl...
[期刊论文] 作者:Ruan Lizhi,Zhang Jing, 来源:数学物理学报(英文版) 年份:2004
In this article, authors study the Cauch problem for a model of hyperbolicelliptic coupled system derived from the one-dimensional system of the radiating gas.B...
[期刊论文] 作者:WU Ning,RUAN Tu-Nan, 来源:理论物理通讯 年份:2004
Covariant helicity amplitude analysis for the process of J/ψ →γPP is discussed.Starting from the S- matrix elements of decay process,we deduce the formulae o...
[期刊论文] 作者:RUAN Dong,SUN Hong-Zhou, 来源:理论物理通讯(英文版) 年份:2004
In this paper N = 4 supersymmetry of generalized Morse oscillators in one dimension is studied. Both bound states and scattering states of its four superpartner...
[期刊论文] 作者:RUAN Hong,R.Gerstmeir,S.Schnic, 来源:中国科学C辑(英文版) 年份:2004
During growth of Corynebacterium glutamicum on acetate as its carbon and energy source, the expression of the pta-ack operon is induced, coding for the acetate-...
[期刊论文] 作者:Li-feng XI,Huo-jun RUAN, 来源:中国科学A辑(英文版) 年份:2004
This paper investigates the Lipschitz equivalence of generalized {1,3,5}-{1,4,5} self-similar sets D = (r1D) ∪ (r2D + (1 + r1 - r2 - r3)/2) ∪ (r3D + 1 - r3) a...
[期刊论文] 作者:WANG Nai,RUAN Jiong, 来源:科学通报 年份:2004
In this paper we propose an approach of principal component cluster analysis based on Lyapunov exponent spectrum (LES) to analyze the ECG time series. Analysis...
[期刊论文] 作者:HE Sai-ling,RUAN Zhi-chao, 来源:浙江大学学报A(英文版) 年份:2004
A completely open cavity, which is formed by three 60-degree wedges of a photonic crystal with negative effective index, is introduced. Such a realizable design...
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