向量径

Furthermore, residual interference is analyzed. In Chapter Six, Principal Component, Cross-Spectral Metric, Auxiliary-VectorFiltering and Multistage Wiener Filtering are applied to study low-rank blind space-timemultiuser detection with the generalized canonical representation in multipath channels.

第六章基于最小方差盲空时多用户检测的广义正则形式，利用主成分方法、互谱度量方法、辅助向量滤波和多级维纳滤波，研究了多径条件下的低秩盲空时多用户检测。

Through detailed analyzing some influencing factiors of sand liquefaction, seven parameters were selected as assessment indexes. They are earthquake magnitude, peak ground surface acceleration, standard penetration value, specific penetration resistance, relative compaction, average particle diameter, and water table. The extension assessment model has been established that was applied to assessment of sand liquefaction potential. The model had been trained by the historical data and has been assessed in virtue of sand liquefaction from the historical data by simulating, and got a excellent result. After introduction of the support vector machine theory, this paper established the assessment model of sand liquefaction based on the support vector machine, and assessed in sand liquefaction from virtue data of some fields in home and overseas with the tool Libsvm, which was programmed based on the support vector machine theory. And got a good coherency between the assessement results and the actual liquefaction.

在详细分析影响砂土液化因素的基础上，选取了震级M、地面最大加速度g_、标准贯入击数N_(63.5)、比贯入阻力P_s、相对密实度D_r、平均粒径D_(50)、地下水位d_w等7个参数作为评价指标，建立了砂土液化势的可拓评价模型，并对历史数据进行仿真评价，取得了较好的应用效果；在对支持向量机的理论进行介绍后，本文建立了基于支持向量机的砂土液化势评价模型，并利用在基于支持向量机理论的Libsvm软件，对若干国内外场地的现场实测数据进行了评价，评价结果与现场表现基本上一致。

Either of two coordinates , the radius vector or the polar angle , that together specify the position of a point in a plane .

极坐标：两个坐标中的任一个，向量径或极角，共同用以确定平面中一点的位置

The surface planishing and 1mm diameter (where the soil sample passing through 1mm standard griddle) are idealer process and appropriate diameter selection for measurement indoor, because they have lesser standard error vector of testing direction and average reflectance in repeated measurements for soil with different texture.

表面压平处理方法及1mm粒径条件下，不同质地的土壤总体上都能获得具有相对较小的测试方向上的标准差向量及多次重复测试反射系数平均值之间的标准差向量，是室内测试较理想的表面处理方法和合适的土壤粒径选择。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。