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First of all, the FEE project risk identification model based on feature map has been built, which is object-oriented and uses four main methods: direct mapping, project mapping, discrete decomposition mapping, and group mapping to identify the FEE project risk more completely, more scientifically and more efficiently.

在风险评判的过程中，研究利用人工神经网络技术和模糊系统理论，构建了基于"BP神经网络-模糊系统"串联模式的林业生态工程项目风险综合评判模型，从而有效地解决了项目风险的复杂性和非线性带来的多指标综合评价难题，并使用"相对属于"的概念使得风险等级的评判结果更加趋于合理。

Second, analyzing principle of the singular value decomposition and the principle of wavelet transform deeply at all levels, as well as the impact to image processing and singular value decomposition wavelet analyzing, focus on single watermarking and double watermarking algorithm based on the discrete wavelet transform.

其次，深入分析了奇异值分解的原理和小波变换的原理以及图像处理对各级小波分解和奇异值分析的影响等，重点研究了基于离散小波变换的单水印和双水印算法。

According to the characteristics of subarea control and interlayer control of AVC,the reactive power optimization based on the principle of decomposition coordination in provincial grid is proposed to better improvement the astringency of algorithm,calculation speed and disposal of discrete variables.

针对AVC分区、分层控制的特点，提出在省级电网实现基于分解协调原理的无功优化，以期在算法的收敛性、计算速度以及对离散变量的处理几方面有明显的改进。

Chart -- A discrete control chart. Based on the binomial distribution, fraction defective, p, is the ratio of the number of defective items, x, in a sample of size n.

图 --一种基于二项式分布的计数值控制图，它反映的是有缺陷产品的比率。P就是样本容量为n时，有缺陷产品x的比率。

The sufficient and necessary conditions of positive definitiveness of a covariance matrix from multivariate discrete data are obtained.

本论文通过引入p-向量配、I-线性组合及它们的性质，研究离散型样本协方差矩阵的正定性问题。

Further more, this thesis has provided a new method for optimizing sampling in theory, and established the probability model for the positive definitiveness of discrete sample by which the number of sampling was optimized.

在应用上，建立了离散型样本协方差矩阵正定的概率模型；提出了一种新的优化抽样调查设计方案，优化了抽样个数。

In a special case of 2 dimensional variables, the probability of the positive definitiveness of the discrete sample covariance matrix is given in term of sample size and variable dimension. Based on the results, the optimal sample size is provided in this thesis.

推出了离散型样本协方差矩阵正定的充要条件，得到了求离散型样本协方差矩阵正定概率的模型，建立了特殊情况下的抽样优化模型。

Studying the positive definitiveness of the covariance matrix from discrete data is important to design the sampling plan and provides the base for the data analysis.However, there have been few outcomes about the positive definitiveness of covariance matrix, most of which have been restricted to the Covariance-matrix of continuous sample.

研究离散型样本协方差矩阵的正定性有助于判断是否可以降低样本的维数，有利于优化抽样个数，为抽样调查的优化设计方案提供一定的理论基础；为基于特征根的多元统计分析提供理论指导。

This thesis discussed the positive definitiveness of the covariance matrix of sample whose variables are discrete data by using p-vector match, I-Linear combination and their properties.

对于变量取离散数据的样本协方差矩阵的正定性，很少有学者进行研究。

The combinatorial and delimitative algorithm of engineering structure design with different discrete set and its software system is introduced in this paper.

引 言 离散变量优化设计是指在优化设计过程中，设计变量的取值不是在某一范围内连续变化而是只能取某些符合一定条件的离散值。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。