固体电解质ZrO2-CeO2-SrO超细粉的制备

通过试验研制出了ZrO2 -CeO2 -SrO固体电解质超细粉 研究表明 ,其颗粒粒径随母液的浓度的增大、氨水的加入量的减少、烧结温度的提高及烧结时间的延长而增大 ,粒径分布的范围也增大 ,适宜条件分别为 0 .1mol/L ,pH为 1 4,70 0℃ ,4h .通过SEM观察 ,颗粒呈无规则形状 ,通过XRD分析了氧化物之间的结合情况 ,发现有固溶体产生 图 3,表 4,参 5     

中外事故犯罪客观方面之比较研究

事故犯罪的客观方面是事故犯罪构成的必要要件，然而中外刑法对事故犯罪客观方面存在不同的界定，对中外刑法事故犯罪客观方面进行比较，有助于正确界定事故犯罪的客观方面，进而促进刑事立法与刑事司法。文章认为，事故犯罪的客观方面可以分为两种类型，标准形态的事故犯罪与非标准形态的事故犯罪，以此为基点，对事故犯罪客观方面进行了比较。     

Quantitative Estimates of Outcrossing Rates in a Natural Population of Caldesia grandis （Alismataceae）

Outcrossing rate in a natural population of Caldesia grandis was estimated by the dominant random amplified polymorphism DNA (RAPD) marker using 10 open-pollinated progeny arrays of 24 individuals. The multilocus outcrossing rate estimated based on all 25 RAPD loci was 0.872 ±0.033 and the single-locus outcrossing rate was 0.795 ±0.032. Multilocus estimates did not differ significantly from the single-locus estimates. The fixation index, F, in the progeny estimated from RAPD data was -0.142 ±0.000. The estimates of multilocus outcrossing rates (t_m) and single-locus outcrossing rates (t_s) obtained from MLDT clearly indicate that outcrossing is predominant in the open-pollinated C. grandis population. An empirical analysis suggests that 15 should be the minimum number of dominant marker loci necessary to achieve robust estimates of t_m.     

三羟甲基甲胺固-固相变的变温红外光谱研究

在４０００～４５０ｃｍ＾－１波段范围内测定了三羟甲基胺（ＴＡＭ）在２０～１４０℃的红外光谱。研究发现，在１３０～１３５℃区间内，ＴＡＭ的特征吸收峰的位置、形状、强度均发生较大变化，该温度区间与ＴＡＭ的固－固相变温度１３４．７３℃相对应。研究结果可以验证ＴＡＭ的固－固相变相理。     

A FRAMEWORK FOR REAL-VALUED CIPHER SYSTEMS

Most cipher systems designed thus far are binary-valued or integer-valued cipher systems. Their security relies on the assumption that one-way functions exist. Though the existence of one-way functions has not been proved yet, most cryptographic researchers believe that one-way functions exist. In addition, many candidates for one-way functions have been proposed. Therefore, the key step for developing real-valued cipher systems is to define real one-way functions and to propose candidates for them. In this paper, based on computational complexity theory over the real field, we give two definitions of real one-way functions; one is for digital one-way functions and the other is for general one-way functions. Candidates for these two classes of one-way functions are also proposed. Moreover, we present two examples to demonstrate that the candidates for both digital one-way functions and general one-way functions can be applied to construct secure real-valued cipher systems.     

Minimal symmetric submani folds in compact Riemannian symmetric spaces

A necessary and sufficient condition for a symmetric submanifold to be minimal in its ambient compact Riemannian symmetric space is given. By this condition a complete classification of nonminimal symmetric submanifolds in compact symmetric spaces is obtained.     

无闭轨Lienard系统的拓扑分类(Ⅰ)——九种粗结构

Ｌｉｅｎａｒｄ系统是一种基本的微分系统，但对Ｌｉｅｎａｒｄ系统拓扑分类问题，至今尚没有系统的研究工作，为此对Ｌｉｅｎａｒｄ系统做一个粗分类，这是拓扑分类的必要准备工作     

非光滑方程信赖域算法的全局收敛性(英)

给出一个解非光滑方程的信赖域算法，提出弱正则SPN分解和弱正则条件数的定义．在弱正则条件下，证明此算法的全局收敛性．     

Downside Risk-Aversion Analysis for a Single-Stage Newsvendor Problem

We extend the classical newsvendor problem by introducing a downside risk constraint from the perspective of inventory control. At the beginning of a replenishment period the newsvendor will place an order, then he will review the inventory level at the end of the period. If the inventory level is positive then he will bear the holding cost and if the inventory level is negative then he will bear the backorder cost. The optimal order quantity has a simple form. We analyze the form of the optimal order quan-tity when we restrict that the probability that the cost level is larger than or equal to a fixed cost constant is less than a fixed value of probability. At last, we analyze the case that the fixed cost constant is equal to the expected cost.     

AN EXPONENTIAL INEQUALITY FOR AUTOREGRESSIVE PROCESSES IN ADAPTIVE TRACKING

A wide range of literature concerning classical asymptotic properties for linear models with adaptive control is available, such as strong laws of large numbers or central limit theorems. Unfortunately, in contrast with the situation without control, it appears to be impossible to find sharp asymptotic or nonasymptotic properties such as large deviation principles or exponential inequalities. Our purpose is to provide a first step towards that direction by proving a very simple exponential inequality for the standard least squares estimator of the unknown parameter of Gaussian autoregressive process in adaptive tracking.