该一维有限元列式只需对扇形区域在角度方向上离散，最后的总体方程为一个二次特征根方程。
Discretization in angular coordinate is needed only and the global equation is a second order characteristic matrix equation.
针对该问题，采用核典型相关分析方法进行原始特征的二次提取，得到简约而重要的二次特征。
Kernel Canonical Correlation Analysis (KCCA) is a recently addressed supervised machine learning methods, which is a powerful approach of extracting nonlinear features.
在第二次试验中，采用模糊外部特征以及特征切换的方法后，EvoFIT产生的图像正确辨认率达到24.5%。
In a second experiment, EvoFIT images led to correct identifications 24.5% of the time with the blurring and feature toggling added.
与其它方法相比，NURBS方法引入权因子后能精确描述二次曲线，并被工程技术所采用，但存在几何特征不够直观的缺点。
In contrast to other methods, method of NURBS with weights can describe quadratic curve accurately and can be adopted by technology of engineer, but its geometrical characteristics was not obvious.
为克服其不足，建立和研究了二次单调插值特征差分方法。
The quadratic monotone interpolation characteristic difference method is proposed to overcome these defects.
这里，主要对二次处理的方法作了详细的介绍，包括时域信号的统计特征，频域分析的傅立叶变换和短时傅立叶变换。
Here, secondary treatment methods are introduced in detail, include time domain signal statistics character, frequency analysis fast Fourier transform (FFT), and short time Fourier transform (STFT).
本文主要研究细分方法及其应用，所做的工作包括四点小波的构造、尖锐特征造型和二次曲面造型。
In this thesis, we will investigate subdivision method and its application, including construction of four-point wavelets, generation of sharp features and quadrics.
针对多孔介质特殊的孔隙结构特征，建立了一个新的简化孔隙力学模型，并由该模型导出了渗透率与有效应力的二次多项式关系。
A new simple pore mechanics model is established based the pore structure of low permeability reservoir rock, from which the quadratic equation of effective stress and permeability can be educed.
利用这些敏度公式就可以构造出有效的序列二次规划算法来求解涉及重特征值的最优结构设计问题。
Truncating the characteristic equation up to the different order, we have obtained the first order and the second order sensitivity expressions both for the single and multimodal eigenvalues.
并对此算法的实时性作了大量测试，结果表明其负载平衡延时基本满足二次曲线特征，故此算法的实时性是较优的。
And we have done a lot of test to the real-time of this algorithms, the result shows that the delay of the load balancing satisfys conic characteristic, so the real-time of this algorithms is better.
针对道路边界的形状特征提出的二次曲线道路边界模型，实现了对车道标识线的实时跟踪。
Conic section road border model put forward to the form characteristic of the border of road, the ones that have realized to identification line of lane which are followed in real time.
退变质过程以黄铁矿变斑晶生长、矿石糜棱岩的形成、二次退火和化学再活化为特征。
Retrograde metamorphism at Hongtoushan is characterized by porphyroblastic growth of pyrite, formation of ore mylonite, secondary annealing and chemical remobilization.
利用2006年上海市第二次全国残疾人抽样调查资料，分析上海市残疾老人的基本特征和致残状况。
By using Shanghai's data from the Second National Sample Survey on disability in 2006, the paper analyses characteristics and disability of Shanghai's old disabled people.
石油二次运移是一个复杂的地质过程，本文通过利用饱和地层水的低孔低渗储层砂岩来进行石油二次运移模拟实验，初步研究了此过程的变化特征。
This paper primarily discusses the changeable features of the process through the modelling experiment of secondary migration using the reservoir sandstone with ultra-low porosity and permeability.
为了提高图形渲染程序的性能，根据统一脚本核心硬件的特征，提出一种在材质空间进行二次排序的场景组织算法。
In order to improve the performance of graphics rendering process, we proposed the algorithm based on unified shader core, which sorted objects in their material space.
讨论了混合建模方法的主要研究内容，并研究了二次曲面特征和过渡曲面特征提取。
Main contents in relation to the hybrid modeling method are discussed, and some key techniques such as quadric surface feature extraction and blend surface feature extraction are addressed in details.
然后，针对金川岩体的流变特征进行了理论研究，建立了非线性流变模型，通过拟合得出了最佳二次支护时机；
Then, theoretical study was carried out on the rheology of Jinchuan rock mass and a nonlinear rheological model was established. The best secondary support time was found by fitting.
结合工程实践，以可逆运行的机—电—液系统为例，对广义二次调节概念进行了深入分析，研究了二次调节系统的一般特征。
By an example of a reversibly running mechanic-electric-hydraulic-system, the generalized secondary control system was analyzed, whose general properties were summarized.
目前的通用方法都是基于二次曲面的特征方程进行拟合，由于特征方程求解复杂，因此这些拟合软件在进行曲面拟合时均存在很多的限制条件。
Nowadays, general fitting methods are based on the character equations of quadratic surface to implement. For it is so complicated that a lot of fitting software exist a lot of restrict conditions.
本文利用特征多项式方程使得二次曲面交线的平面曲线分支的求解简化成平面与二次曲面求交问题。
The planar components and straight line components of the quadric surfaces intersections are studied precisely by means of matrix algebra in this paper.
本文阐述了平面二次包络弧面蜗杆传动的几何特征，引用数学方程对这些特征加以说明，进而提出了啮合参数选择原则。
In this paper, the geometric characteristics of worm drive with double enveloping arc surface machined by datum-plane tool are stated.
本文根据对官地亚组岩性、相标志及生物特征分析，认为官地期曾发生二次海侵。
On the basis of an analysis of the lithology, facies indicators and biological features, it is considered that two Marine transgressions took place during this period of time.
特征图案的正确选择和二次校准方法最大限度地降低了摄像头性能对校准精度的影响；
The special pattern for feature extraction and the re-alignment idea furthest decreased the effect of the cameras- performances on the alignment precision.
本文对超声检测中常遇到的变采样问题进行讨论，比较了两种实现方法：基于特征值的二次采样和滤波器组，并给出了二次采样算法。
In the paper, we discuss the variable sampling in ultrasonic testing, and compare two techniques, i. e., the resampling arithmetic and the filter group.
尽管存在差异，在第二次研究过程中，最终发现活性肺结核的人群中发现了相同的风险特征。
Despite the differences, the same risk signature found in the first study was detected in the people who eventually developed active TB during the second trial.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
In this paper, it is presented that the locus of a line crossedwith each of two guide lines and a guide conic not being on a commonplane is a ruled surface of fourth order.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
In this paper, it is presented that the locus of a line crossedwith each of two guide lines and a guide conic not being on a commonplane is a ruled surface of fourth order.
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