L p approximation by Bernstein-Kantorovich quasi-interpolants

Bernstein-Kantorovich quasi-interpolants K^（2r-1）n（f, x） are considered and direct, inverse and equivalence theorems with Ditzian-Totik modulus of smoothness ω^2rφ（f, t）p （1 ≤ p ≤＋∞） are obtained.     

Lp approximation by Bernstein-Kantorovich quasi-interpolants

Bernstein-Kantorovich quasi-interpolants K(2r-1) n (f, x) are considered and direct,inverse and equivalence theorems with Ditzian-Totik modulus of smoothness ω2rψ(f, t)p (1 ≤ p≤+∞) are obtained.     

Interpolation on weak martingale Hardy space

By the weak atomic decompositions of weak martingale Hardy spaces, we investigate the interpolation spaces between weak martingale Hardy spaces and martingale Hardy spaces.     

基于Grbner基方法的交通分配算法

交通规划中的第四阶段交通分配是交通规划中最重要的环节之一,合理的交通分配方法是未来规划期内交通运输系统状态良好的关键,对交通分配模型进行优化有利于交通规划正确高效.经典的交通规划分配模型算法计算复杂,比较次数多,计算量大,而Grbner基方法在计算机上容易实现,计算思路清晰简洁,适合在交通分配中采用.选取了交通分配中的典型算法增量分配法,对其中最短路算法用Grbner基方法改进,构造了基于Grbner基方法的交通分配模型.模型先将交通分配中的最短路问题转化为求多项式集的Grbner基,然后直接得出交通分配中的最短路径,使交通分配算法高效简洁.最后,为算法加以实例佐证,证实算法在工程应用中可行.     

Medium modified fragmentation function: equivalence of the ACSX and QW formalisms in the high-Q2 region

We study the medium modified fragmentation function in high-energy heavy-ion collisions. We show that the ACSX and QW formalisms are equivalent to each other in the high-Q² limit in both theoretical and numerical aspects.     

内积在溶液浓度测定中的应用

提出内积的溶液浓度测定方法。该方法计算已知浓度溶液透光率曲线与0号溶液（浓度最低的溶液）透光率曲线的内积ρ,确定溶液的ρ-C曲线,然后测定未知溶液的透光率曲线,计算其与0号溶液透光率曲线的内积,并利用已建立好的ρ-C曲线进行插值以估计溶液浓度。由于该方法利用了透光率曲线的全部信息,因此对溶液浓度的估计精度较高。对K2Cr2O7溶液浓度的测定实验结果表明,该方法对溶液浓度的估计相对误差小于1.00%。     

一个Grüs型积分不等式的单参数推广

利用Cauchy中值定理给出Pachpatte B G建立的一个Grüss型积分不等式的单参数推广.     

Preparation and Inhibitory Effects of 20（S）-Ginsenoside Rh2 on Hep-A-22 Cells

<正>A modified method of preparing 20(S)-ginsenoside Rh_2(G-Rh_2) and the inhibitory effect of 20(S)-ginse-noside Rh_2 on Hep-A-22 cells were investigated.The total saponins and strong alkali were dissolved in glycerol at the atmospheric pressure,and the degradation was performed at a high temperature.After G-Rh_2 had been isolated and purified,MTT(methyl thiazolyl tetrazolium) assay was applied to evaluating the effect of 20(S)-ginsenoside Rh_2 on the cells viability and morphological changes were observed.It was shown that 20(S)-ginsenoside Rh_2 can reduce Hep-A-22 cells viability in dose-dependent manner and the cells took on cell shrinkage,membrane blebbing,chromosomal condensations,especially under the higher concentrations of it.In conclusion,20(S)-ginsenoside Rh_2 can be prepared effectively that not only decreases viability but also induces the apoptosis of Hep-A-22 cells.     

赋范线性空间中渐近拟伪压缩型映象不动点的修改的广义Ishikawa迭代逼近

本文在去掉lim inf n→∞||xn||＜∞,∞∑n=0(kn-1)＜∞条件下,并用αn→o(n→∞)取代∑α2n＜∞,使用新的分析技巧,在赋范线性空间中建立了一致Lipschitz的渐近拟伪压缩型映象公共不动点的修改的广义Ishikawa迭代序列的强收敛定理,从而本质改进和推广了唐玉超,刘理蔚新近的结果.