查询词典 extrinsic feature

In studies of interaction among pile, platform that above it and surrounding soil, this paper employ the concept of plate element to simulate the loading character of platform, and employ the concept of solid element to simulate the character of pile and soil, using the finite element method after understanding the geometry properties of pile, soil and the platform. Analyzing the loading properties of the three entities above and their deformation, this paper also employ a special element, Penalty Element. The introduction of penalty element of this kind has served to guarantee the join harmony of displacement between solid element and plate element, thereby effectively resolving the join problem between platforms, pile that support it and surrounding soil.Considering significant property difference between pile material and its surrounding soil, there may be much shear stress on their contact interface produced under vertical load, thus causing displacement or fission. Therefore it is necessary to adopt one special constitutive law of this kind of contact interface, which can reflect its feature of loading and deformation thoroughly. On the basis of the deformation feature and constitutive laws of some contact interface obtained by Zhang Dongji and people concerned through some single-shear experiments on contact interface between structure and soil, this paper employ one pile-soil three-dimensional constant thickness contact interface model to simulate the " slide" taken place on the interface between pile and its surrounding soil. With this kind model, this paper has also created one finite element model, which can be applied to perform finite element calculation and analyze the pile-loading feature, and deduced its element stiffness matrix.

在承台-桩-土共同作用中，考虑桩与承台的几何特性，采用有限元方法，用实体单元模拟桩土，用板单元模拟承台，更具体地分析桩和承台的受力特性和变形，而且还采用罚单元—既实体单元与板单元之间连接必须满足变形协调条件，来有效地解决了承台与桩土的连接问题，且在桩土共同作用中，由于桩体结构的材料性能与周围土层性质相差较大，在竖向荷载下有可能在其接触面上产生较大的剪应力从而导致错动或开裂，因此，为了充分反映桩土接触面上的受力及变形特征，应采用一种桩土接触面特有的本构关系，即利用张冬霁等人关于结构与土体接触面单剪试验所得到的接触面变形特征及其本构关系，引入桩-土三维等厚度接触单元来模拟桩与桩侧土之间的&滑移&，在此基础上建立可用于桩基承载性状分析的有限元计算单元模型，并推导出了各单元的刚度矩阵。

Through the in-depth analysis of sentence and the sentence similarity computing method based on the keywords feature, the semantic feature and the syntactic feature, we propose a new method based on the multi-features fusion.

本文通过对句子的深入分析，在分别对基于词特征，词义特征以及句法特征的句子相似度计算的基础上，提出一种基于多特征融合的句子相似度的计算方法。

This method first maps training data into a high dimensional feature space through kernel function concept in Support Vector Machine and constructs orthogonal space in the feature space. Then it maps the data from feature space into the orthogonal space and computes Fisher criterion based global orthogonal discriminants.

首先应用支持向量机中核函数的概念，将样本隐式地映射到特征空间，然后构造特征空间的正交空间，再将特征空间样本映射到特征空间的正交空间，求解基于Fisher的全局正交鉴别矢量集。

Methods The QRS complex was firstly detected by using continouse wavelet transform, then the feature sets were detected by different feature extraction technique. Using linear discriminants, 4 types of FCC beats based on MIT/BIH arrhythmia database were classified and the classification performance of the feature sets was evaluated.

首先采用连续小波变换对QRS复合波进行定位，然后采用不同的特征提取技术，提取一组特征矢量，送入线性判别式分类器进行训练，并对基于MIT/BIH数据库中的4类心搏进行分类，评价其分类性能。

There are three main features that characterize beautiful faces: the geometric feature of bilateral symmetry, the mathematical feature of averageness, and the biological feature of secondary sexual characteristics.

美丽的面孔具有三个主要特征：左右对称的几何特征、平均化的数学特征和第二性征的生物特征，这些都表明他们在基因与发展上更健康。

The algorithm improves performance by modified extrinsic and channel information of traditional MAP to suit additive white Class A noise.Simulation results show that the proposed algorithm has better performance than traditional MAP algorit...

该算法修正传统MAP算法的外部信息和信道信息计算公式，使之适应非高斯的ClassA脉冲噪声环境，从而改进了译码性能，计算机仿真证明新的译码算法在Class A噪声环境中比传统MAP算法具有更好的性能。

On putting forward a research method of the history of mathematical economics by synthesizing the intrinsic and extrinsic historical factors, the author examines some problems in the early development of mathematical economics in the light of arithmetization of analysis.

提出研究数理经济学史内、外史结合的一种方法，并用该方法以 1 9世纪分析算术化为背景，考察了数理经济学早期发展的若干问题，指出数学基础问题是 1 870年前在经济学中应用数学方法的主要障碍，以分析算术化为代表的数学基础重建则是此后数理经济学迅猛兴起的重要条件。

By putting forward a research method on the history of mathematical economics through the synthesis of the intrinsic and extrinsic historical factors , the author examines some issues in the early devel-opment of mathematical economics in the light of arithmetization of analysis.

提出研究数理经济学史的内、外史相结合的方法，并以十九世纪分析算术化为背景，用该方法探讨了数理经济学早期发展的若干问题，指出数学基础尚未完善的问题是1870年前在经济研究中应用数学方法的主要障碍，而以分析算术化为代表的数学基础重建则是此后数理经济学迅猛兴起的重要原因。

In extrinsic asthma,bronchospasm is attributed to an immunologic response of the patient to an allergen.

在外源性哮喘中，支气管痉挛是由于病人对过敏原的免疫性反应而引起的。

It is thus seen that canonicity is a correlative of inspiration, being the extrinsic dignity belonging to writings which have been officially declared as of sacred origin and authority.

因此，它是可见正规是一个相关的灵感，作为外在的尊严属於著作，其中已被正式宣布为神圣的起源和权威。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"