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NONEXISTENCE AND EXISTENCE OF POSITIVE SOLUTIONS FOR 2nTH-ORDER SINGULAR SUPERLINEAR PROBLEMS WITH S
[期刊论文] 作者：Zhao Zengqin,
来源：数学物理学报（英文版） 年份：2004
This paper investigates a class of 2nth-order singular superlinear problems with Strum-Liouville boundary conditions.We obtain a necessary and sufficient condit...
[期刊论文] 作者：Zhao Liqin,
来源：数学物理学报（英文版） 年份：2004
In this article, the author studies the boundedness and convergence for the {(x) = a(y) - f(x),(y) = b(y)β(x) - g(x) + e(t),where a(y), b(y), f(x),g(x),β(x) a...
Relation Between Dimension and Angular Momentum for Radially Symmetric Potential in N-Dimensional Sp
[期刊论文] 作者：ZHAO Wei-Qin,
来源：理论物理通讯（英文版） 年份：2004
It is proved that when solving Schr(o)dinger equations for radially symmetric potentials the effect of higher dimensions on the radial wave function is equivale...
[期刊论文] 作者：Zicheng ZHAO,
来源：数学年刊B辑（英文版） 年份：2004
The author introduces the w-function defined on the considered spacelike graph M.Under the growth conditions w =o(log z) and w =o(r),two Bernstein type theorems...
[期刊论文] 作者：ZHAO Song-hua,
来源：海外英语（上） 年份：2004
Urgent improvement is needed for the widespread passive students’participation and low reading efficiency in Chinese reading class. The amelioration can be ach...
[期刊论文] 作者：ZHAO Shu-kun,
来源：山东大学学报（哲学社会科学版） 年份：2004
非现实性冲突不同于现实性冲突,其实质在于"紧张"释放而非争夺稀有的资源或利益.在社会转型过程中,由于社会公共物品缺失,导致人们生活意义和价值的部分失落,并部分反映为诉...
[期刊论文] 作者：ZHAO Wei-Qin,
来源：理论物理通讯 年份：2004
A revised iterative method based on Green function defined by quadratures along a single trajectory is proposed to solve the low-lying quantum wave function for...
[期刊论文] 作者：ZHAO Yao,
来源：中国科学F辑（英文版） 年份：2004
Geometrical attacks can destroy most watermarking systems at present. So how to efficiently resist such kind of attacks remains a challenging direction in water...
Linear estimation and distribution of the limit cycles bifurcated from a kind of degenerate polycycl
[期刊论文] 作者：Li-qin ZHAO,
来源：中国科学A辑（英文版） 年份：2004
In this paper, we investigate the number and the distribution of the limit cycles bifurcated from a kind of degenerate planar polycycles through three singular...
[期刊论文] 作者：ZHAO Baolu,
来源：科学通报 年份：2004
The unprecedented interest in the antioxidant activity of green tea polyphenols (GTP) is due to the apparent health benefits of tea drinking and the experimenta...
[期刊论文] 作者：ZHAO Zhen-hua,
来源：高等学校化学研究（英文版） 年份：2004
4-Methoxyacetophenone(4-MAP) was synthesized by the acylation of anisole with acetic anhydride in the presence of HY zeolite.The addition of an appropriate amou...
[期刊论文] 作者：ZHAO Liu,
来源：理论物理通讯 年份：2004
Two general families of new quantum-deformed current algebras are proposed and identified both as infinite Hopf family of algebras, a structure which enables on...
[期刊论文] 作者：Zhao Liqin,
来源：中国科学A辑（英文版） 年份：2004
This paper deals with the cyclicity of a kind of degenerate planar polycycles through a saddle-node P0 and two hyperbolic saddles P1 and P2, where the hyperboli...
[期刊论文] 作者：Zhao Rongyang,
来源：安徽农业科学 年份：2004
综述了蛹虫草的驯化、药理研究及产品开发等方面的研究进展....
[期刊论文] 作者：ZHAO Xiao-gang,
来源：中华创伤杂志（英文版） 年份：2004
Pelvic fractures are serious injuries.Death within 24 hours is most often a result of acute blood loss.The emergency management of these patients is challenging...
[期刊论文] 作者：ZHAO Xin-liang,
来源：贵州农业科学 年份：2004
为拓宽小麦种质资源,创造优异新种质,以6个玉米品种和1个银杏品种的总DNA为转化供体,以4个小麦品种为转化受体,进行了离子束介导遗传转化研究试验.结果表明,离子注入和离子束...
[期刊论文] 作者：ZHAO Pengda,
来源：中国地质大学学报 年份：2004
Nontraditional resources refer to that potential mineral resources are unconsidered and unutilized under actual condition of technique, economic and environment...
[期刊论文] 作者：ChengYi ZHAO,
来源：干旱区科学 年份：2004
Wheat growth in response to soil water deficit play an important role in yield stability. A field experiment was conducted for winter wheat (Triticum aestivum L...
[期刊论文] 作者：ZHAO Qing-rui,
来源：中国有色金属学报（英文版） 年份：2004
SnO_2 hollow spheres and rod bundles were prepared using SnSO_4 as raw material and sodium dodecyl benzenesulfonate and poly(vinyl pyrrolidone) as templates at...
[期刊论文] 作者：Zhao yan,
来源：人力资源管理 年份：2004
Almost all the countries in the world have bilingual population and many of these Countries have bilingual programs(Noboa,1987 cited in Baca & Cervantes,1998).T...
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