B值拟终鞅型序列与Banach空间的几何特征

设（Ω，，Ｐ）是概率空间，Ｂ是Ｂａｎａｃｈ空间．本文引入了一类新的鞅型序列──（Ｂ值）拟终鞅型序列，并研究了它们的收敛性与Ｂａｎａｃｈ空间的Ｒａｄｏｎ－Ｎｉｋｏｄｙｍ性，一致光滑性和ＵＭＤ性的依赖关系．     

电荷传输剂TPD的合成及其在电致发光中的应用

用１８－冠－６作相转移催化剂，邻二氯苯作溶剂由二苯基联苯胺与不同取代基的碘苯经乌尔曼反应，制得Ｎ，Ｎ－二苯基－Ｎ，Ｎ－二取代苯基联苯胺（三苯基二胺）衍生物（简称ＴＰＤ），并经ＩＲ、ＮＭＲ等表征；作为电荷传输剂，ＴＰＤ的加入可改善电致发光器件的发光性能．     

Electrical and photo-electrical properties of a chalcopyrite semiconductor AgInSe2

In this paper we report the electrical and photoelectrical properties of AgInSe₂. Nyquist plots for AgInSe₂, obtained at different temperatures, are perfect arcs of a semicircle with their centres lying below the abscissa at an angleα. Finite values ofα (the distribution parameter) clearly indicate a multirelaxation behaviour. Transient and steady state photoconductivity of AgInSe₂ has been studied at different temperatures and illumination levels. The lnI _ph vs lnF curves at different temperatures follow the empirical relation:I _ph ∝F ^γ. Values of γ are close to 0.5 at all the temperatures, suggesting a bimolecular recombination. Decay of the photocurrent, when the illumination is switched off, shows that during decay, photocurrent has two components, i.e. a fast decay in the beginning and a slow decay thereafter. Decay time constant for slow decay process decreases with increasing temperature, suggesting that recombination is a thermally activated process in the temperature range studied.     

On the reversed sub-martingale property of empirical discrepancies in arbitrary sample spaces

The empirical discrepancy is defined as a supremum over a class of functions of a collection of centered sample averages. For uncountable classes the discrepancy need not be measurable, and distributional assertions can become dependent on the structure of the underlying probability space. This paper shows that one such assertion—the reversed sub-martingale property—is valid when interpreted in terms of measurable cover functions for the canonical model, but that it can fail in other constructions of the underlying model.     

最小风险证券组合的结构分析和迭代算法

本文分析了最小风险组合证券投资的结构特征，并提出了一种组合证券风险最小化的迭代算法，证明了其收敛性．该算法操作简单，且易于处理不允许卖空情况下的证券组合问题．     

高斯光束经复合光学系统的聚焦特性

 讨论了高斯光束经由凹透镜，子系统和凸透镜构成的复合光学系统的聚焦特性，利用矩阵光学方法，推导出了高斯光束经复合光学系统聚焦后束腰宽度和像距的计算公式。计算例表明，选择适当参数的复合光学系统，既可以获得较小的束腰宽度，又可以获得较长的像距。     

碳纤维增强聚砜颅骨修补材料的物理力学性能研究

对碳纤维增强聚砜（ＣＦ／ＰＳＵ）颅骨修补材料的物理力学性能进行了研究。结果表明，ＣＦ含量的增加，ＣＦ／ＰＳＵ复合材料的密度ρｃ及ρｖ的变化分别符合公式：ρｃ＝１．２４３＋０．４０５ＷＣＦ及ｌｇρｖ＝１６．７１７－２０．１８８ＷＣＦ（ＷＣＦ为ＣＦ的重量百分数）。当ＣＴ含量在０￣２５（ｗｔ．％）范围内，ＣＦ／ＰＳＵ复合材料的力学性能均随ＣＴ含量的增加而增加。对于ＣＦ含量为３０（ｗｔ．％）的ＣＦ／ＰＳＵ     

具有相交性质的近小扭转映射的不变环面的保持性

In this paper we investigate the nearly small twist mappings with intersection property. With a certain non-degenerate condition, we proved that the most of invariant tori of the original small twist mappings will survive afer small perturtations. The persisted invariant tori are close to the unperturbed ones when the perturbation are small. The orbits reduced by those mappings are quasi-periodic in the invariant tori with the frequences closing to the original ones.     

Nehari函数族的偏差定理与拟共形延拓

本文讨论了Nehari函数族的偏差性质,得到了这类函数及其导数的若干偏差定理,同时研究了这类函数的拟共形延拓,并给出拟共形延拓的精确表达式.     

The Asymptotic Property of Solutions to a Class of Integrodifferential Equations

The asymptotic property of solutions to a class of integrodifferential systems containing a small parameter singularly is studied.