参数强迫激励下非线性振子尖点型奇点的分叉

本文首先研究了不具有Z_2—对称性时的规范形理论和退化向量场的普适开折理论。然后利用这些理论研究了参数激励与强迫激励联合作用下非线性振动系统的尖点型奇点的余维2退化分叉。     

三峡工程泄洪坝段表孔溢流面拉模施工技术

三峡工程泄洪坝段表孔溢流面主要采用一期预留台阶、二期拉模一次成形的方法施工,体型复杂,拉模施工难度大,施工质量要求高,在生产性试验以及对试验结果进行分析的基础上,对混凝土性能、拉模设计、施工措施等方面进行了改进,形成了一套成熟的拉模施工技术。施工结果表明,施工质量达到了设计要求。     

Decomposition of Time Series Dynamic Linear Models

This paper derives the admissible decompositions for a time series dynamic linear model, assuming only that the model is observable. The decompositions depend on factorizations of the characteristic polynomial of the state evolution matrix G into relatively prime factors. This generalizes the method of West (1997 ) which considers one decomposition in the particular case where G is diagonalizable. Conditions are derived for a decomposition to be independent. These results show that no autoregressive process of order d has an independent decomposition for any integer d . Two illustrations of this procedure are discussed in detail.     

艺术建筑设计的探索

通过徐州一中艺术楼的设计实践，寻求优美而独特的艺术形象，并用纯几何形体的组合来达到功能与形式的完美统一。     

纳米二氧化钛生产的工艺与设备（三）

纳米二氧化钛粉体的功能决定了产品的高附加值，而功能在很大程度上取决于产物的粒度和晶型。在纳米TiO2的生产中，煅烧的目的是在高温下使之脱水、脱硫，并形成具有一定晶型和粒度指标。对喷雾干燥、回转炉和旋流动态煅烧炉-旋转闪蒸干燥组合等几种煅烧方式进行了介绍，对其生产特点、产品的晶型、适用的规模和存在的问题进行了讨论。     

Measuring the errors of form of industrial surfaces: prediction and optimization

To acquire maximum information on the geometrical errors of industrially made surfaces at a minimum cost, a method for estimating conditional probabilities of a random signal (Bayesian prediction) is applied to three-dimensional metrology. First, a surface is interpolated between data acquired on a coordinate measuring machine (CMM). Then, for a given probability, limit surfaces are computed that bind a region of space containing the known data and the most probable interpolation of the missing data of the surface. These bounds can be treated as the surface; their points can be considered as if they were actual CMM data when fitting a tolerance zone or a datum feature to the data. For Bayesian prediction, the basic hypotheses on the signal are stationarity, ergodicity, and gaussian density. Deviations from these hypotheses and their consequences on the prediction are taken into account and corrections are proposed.     

机油泵转子的研究

本文研究了有关机油泵转子的齿形曲线、测绘及型腔设计等几个问题     

Colour extension properties of individual pigments and effects on shades of foundations in cake form

The mechanism of colour change during the pigment dispersion process and during powder application to the skin surface was studied by examining the colour extension properties of Yellow. Red , and Black iron oxides in white powder bases. A new measure for the evaluation of the degree of colour extension was devised. This measure corresponded well with human visual sensation, and was found to be useful for comparing the rates of colour extension of pigments. The rate of colour extension of pigments was found to vary in the order: Yellow acicular Red granular Red Black. This result explains colour darkening and the change towards reddish tones during the pigment dispersion process, because Yellow extends fully in the early stage of the process but Red , especially in granular form, and Black continue to extend even in the later stage. Acicular Red iron oxide is more favourably employed than the granular form to attain sufficient colour extension of foundations with lower energy expenditure, and to decrease the discrepancy between the cake colour and the colour of applied powder.
Le développement des oxydes de fer et effet sur les nuances des fonds de teint compacts     

示例学习的广义扩张矩阵算法及其实现

本文对扩张矩阵理论加以扩充，提出关于公式的扩张矩阵的概念，并据此实现一个广义扩张矩阵算法叫做ＡＥ９，本文还将ＡＥ９和ＡＱ１５应用于几个实际领域的学习问题，如睡眠状态的分类，手写数字识别等，结果都表明ＡＥ９比ＡＱ１５分类精度更高。