EFFECTS OF THE HUBBARD INTERACTIONS AND ELECTROSTATIC PINNING ON THE 2D LOCALIZED MODES OF TRANS-(CH)x AROUND A SOLITON

The electron-lattice coupling vibrational modes are calculated using a two-dimensional ex-tension of the Su-Schrieffet-Heeger model that includes the bond-bending term, the electron-electron interactions and the electrostatic pianing for doped samples, The result shows that all ten localized modes exist after turning on the e-e interactions and doped pinning effects, but their localizations has been strengthened and the frequencies have been moved slightly.     

基于单向函数的完全隐藏承诺方案的构造及应用

承诺方案是密码学领域中一种极其重要的协议,而完全隐藏的承诺方案是承诺方案中最难构造的.在收稿,我们基于1-1的单向函数(即单向置换)构造了该类承诺方案,尤其重要的是,它仅仅只需要2轮交换复杂性.基于我们的承诺方案,我们能优化零知识证明系统的构造.     

凸度量空间中广义拟压缩映射具误差的Ishikawa型迭代序列的收敛性

构造了具误差的Ishikawa和Mann型迭代序列,研究了凸度量空间中广义拟压缩映射的收敛性问题.所的结果改进和推广了Ciric、Rhoades、LiuQH、XuHK、田有先和张石生等人的相应结果.     

中位含氯取代环己烯桥环硫三碳菁染料的合成及性能

采用2-甲基噻唑季胺盐与2-氯-1-甲酰基3-羟亚甲基环己烯,合成了五种题示染料。经IR及~1H-NMR谱确认了产物的结构,测定了电子吸收光谱、溶解度及稳定性,发现在染料苯环上引入甲氧基能改进染料溶解度,苯环上有氯取代的染料具有较高的光稳定性。     

痕量氟的Al~（3＋）－Calcein配合物荧光熄灭测定法

本文建立了痕量氟的Ａｌ３＋－Ｃａｌｃｅｉｎ配合物荧光熄灭测定法．该法激发波长４８０ｕｍ，发射波长５０３ｕｍ，线性范围２～１５０μｇ／Ｆ－，灵敏度为２μｇ／ＬＦ－，１００μｇ／ＬＦ－时标准偏差为１．３μｇ／ＬＦ－，是现有的最灵敏方法之一．用茜素络合剂分光光度法进行对照实验，二者获得的结果一致．     

Scaling Behaviour of Diffusion Limited Aggregation with Linear Seed

We present a computer model of diffusion limited aggregation with linear seed. The clusters with varying linear seed lengths are simulated, and their pattern structure, fractal dimension and multifractal spectrum are obtained. The simulation results show that the linear seed length has little effect on the pattern structure of the aggregation clusters if its length is comparatively shorter. With its increasing, the linear seed length has stronger effects on the pattern structure, while the dimension D f decreases. When the linear seed length is larger, the corresponding pattern structure is cross alike. The larger the linear seed length is, the more obvious the cross-like structure with more particles clustering at the two ends of the linear seed and along the vertical direction to the centre of the linear seed. Furthermore, the multifractal spectra curve becomes lower and the range of singularity narrower. The longer the length of a linear seed is, the less irregular and nonuniform the pattern becomes.     

STUDIES ON RESPONSE CHARACTERISTICS OF DRUG ION-SELECTIVE ELECTRODES TRIFLUOPERAZINE ION-SELECTIVE ELECTRODE

New ion-pair complexes of trifluoperazine with dialkylnaphethalene sulfonates, tetraphenylborate, nitro-arylsulfonates, heteropoly acids and halogeno-metal complex acids have been synthesized. Their extraction coefficients in the water-membrane solvent systems are determined to be>10~6 and electrode slopes approach the theoretical values. Systematical studies on electrode behaviours show that the electrode performances depend greatly on the dielectric constants of both the electrode membrane solvent and the sample solution background rather than on the kind of the ion-pair incorporated. For homolog membrane solvents, the extraction coefficient and the liquid-membrane electrode slope increase with the increasing dielectric constant of the solvent, the slopes are found to be related linearly to the inverse dielectric constants of the membrane solvents according to the formula: S=68.5—95.7 ε~(-1) (for n-alcohols), S=69.7—62.0 ε~(-1) (for o-phthalates). Similar relationship exists between slopes of both     

HFT在非平稳信号组份分析中的应用

根据半傅立叶变换(HFT)的基本原理，以遥感探测一个有限闭合圆柱为例，应用HFT分析其暂态散射响应的各组份. 实验结果表明，在高信噪比的情况下，HFT能够成功地从被测物的暂态散射响应中优化分离出早期响应的似脉冲分量和晚期的衰减正弦波分量.