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Based on data cloud, which is measured from 3-coordinate measuring machine or so, an algorithm to search lopological structure from 3D unorganized points using Envelopment-box technology is proposed in this thesis. Based on this method, we searching neighbor points of sampling point. We also improve the Max-Min angle criteria to realize local triangulation, and then get the normal of sampling point from the triangulation. Using the normal and neighbor relationship, classification of scattered data points is realized according to the quadric surface.

本文以测量得到的曲面数据点点云为基础,提出了一种基于包围盒的自动寻找三维散乱数据点之间拓扑结构的方法,采用该方法寻找采样点的邻域结点,并对三角剖分中的典型优化准则—最小内角最大准则提出了改进,按照改进后的优化准则实现了采样点的局部三角划分,并进一步求解得到采样点的法向量,依据法向量及邻域拓扑关系在二次曲面的基础上实现了散乱数据曲面重构中的数据点的自动分类。

Use mechanical and electrical equipment such as drilling machines, whole-inspecting machine, classificatng machine and so on to record the second-hand document, and use electrical brush as the information retreval system to retrievae the components.

用诸如打孔机、验孔机、分类机等机电设备记录二次文献,用电刷作为检索元件的信息检索系统。

This paper addresses the classification capability of network containing quadratic sigmoidal neurons.

针对含二次Sigmoidal神经元的前向神经网络,研究了它的模式分类能力。

We explored the single-trial estimation of P300 from channel Pz using support vector machine in three subjects, and gained a satisfied classification accuracy, which is 91.3%, 88.9% and 91.5% respectively. These results demonstrated the advantages of the inducing paradigm in constructing our mental speller.

本文利用支持向量机分类器对三名被试的脑电信号的载波成分进行了单次提取,特征数据来自通道Pz,以300ms~600ms时段的P300成分作为特征信号,对靶刺激的正确识别率分别为91.3%、88.9%和91.5%,证明了诱发模式的先进性,为系统的实现打下了基础。

Companies in strict accordance with American Petroleum Institute (AP1), American Society of Automotive Engineers, American Society for Testing and Materials, Japan Automobile Standards Organization classification criteria and the People's Republic of China home standards, Sinopec standard, the military standards and enterprise standards, the use of Exxon compound additive and imports of refined base oil dewaxing wide secondary hydrogenation treatment, it is technically feasible and widely Chevron USA, the British-run joint, DuPont, ExxonMobil and other companies to fully communicate using American spin magnetic ions and organic synthesis technology boron molybdenum additives for cutting-edge technology available in the market "in the stone fly" vehicle lubricants, industrial lubricants, engineering machinery oil, Grease, Ice-free fluid, brake fluid and other products with reasonable product mix, excellent quality assurance, accurate market positioning, establishing a good corporate image.

公司严格按照美国石油学会(AP1),美国汽车工程师学会,美国材料实验学会,日本汽车标准组织分类标准及中华人民共和国家标准,中石化标准,中国军工标准和企业标准,采用埃克森复合添加剂和进口精制基础油进行全脱腊二次加氢处理,在技术上广泛与美国雪佛龙,英润联,杜邦,埃克森美孚等公司充分交流合作,利用美国旋磁离子合成技术与有机硼钼添加剂的尖端技术为市场提供的"中石飞天"车用润滑油,工业润滑油,工程机械专用油,润滑脂,不冻液,制动液等系列产品,以合理的产品组合,优良的品质保证,准确的市场定位,树立了良好的企业形象。

The study period is from 1998 to 2007. The study targets are the ex-dividend events of the all IC firms in Taiwan stock market. After eliminating the samples with incomplete data and disagreement, the sum of samples is 318 ex-dividend events of the 80 firms.

其结构共分为三个面向,第一为探讨产业整体的除权行情,包括全体样本的分析以及历时性的趋势分析;第二为产业上中下游的次产业分类,探讨其除权行情是否有所异同;第三为除权行情的影响因子分析,包含产业景气、盈余成长率、股东配股率、员工配股率、股价净值比、权值股/非权值股共计六个因子。

First, a non-negative tensor factorization algorithm is improved by imposing sparseness constraints on it. Secondly, the bispectral images of mechanical signals are obtained and stacked to form a third-order tensor. Thirdly, the improved algorithm is used to extract features, which are represented by a series of basis images from this tensor. Finally, coefficients indicating these basis images' weights in constituting original bispectral images are calculated for fault classification.

首先,改进已有的非负张量分解算法,加入稀疏度控制策略;其次,将机械振动信号的双谱图像堆叠为一个三阶张量;然后利用改进后的分解算法对该张量进行二次故障特征提取,得到代表局部特征的"基图像";最后,通过计算得出基图像在构成原双谱图像中所占的权重,并将得到的权重向量用于故障分类。

B. It's my first time to purchase ceramics in China, could you tell me the classification of Chinese ceramics?

这是我第一次来中国购买陶瓷,你能给我介绍一些中国陶瓷的分类吗

We will investigate the actuality of stony deserts in Guizhou, and divide their types on the basis of their intensity, covering rate of soil and vegetation and amount of species, and stduy the influence factors of forming different stony desert types in more coercing, and explore the ratio of influence factors in the different stony desert areas and the evolutionary mechanism of different stony desert types. Finally,we will stduy the growing conditions and species of arboreous in different geology, land form,hydrology region for natural lithogenic forest and artificial forest, and the natural conditions for failing in many artificial forest,and the reconstruction mechanism in different stony desert type regions.

对贵州石漠现状调查,并根据石漠发育强度、土被、植被覆盖率和物种多少等进行石漠类型分类;对多重胁迫下不同石漠类型形成因子研究,探讨各影响因子在不同类型石漠区的权值;探讨各类型石漠演化机理;选取不同地质、地貌、水文背景区的原生岩生森林及人工造林区对其乔木的立土条件及物种研究;选取贵州经多次造林失败的石山的自然条件研究并探索不同类型石漠区生态重建机理。

Currently, InsectX has managed to generate SIKs of any insect taxa at family level or above and any known species of Braconidae in China at species level.

目前InsectX已支持定制国内昆虫科及以上分类单元、茧蜂科所有已知种在线进行二次检索表重构。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。