查询词典 vector density

One-class support vector machine and support vector data description are two main domain-based one-class classifiers.

单类支持向量机和支持向量数据描述是两种流行的基于支撑域的单分类器。

Methods The total RNA was extracted from the brain of human embryo. The segment of open read frame of DOC-1 was amplified by RT-PCR and was further cloned into the vector, pMD18-T, and the prokaryotic expression vector, pGEX-4T-1, by turns, to produce the new construct pGEX-4T-1-DOC-1. After restriction enzymes digestion analysis and sequenced, pGEX-4T-1-DOC-1 was transformed into E.coli BL21（DE3）. GST-p12 recombinant protein was expressed under IPTG induction and purified by affinity column.

从人胎脑组织中提取总RNA，经逆转录-聚合酶链式反应扩增DOC-1的CDS序列，再通过基因重组技术将该基因片段依次克隆到pMD18-T和pGEX-4T-1载体中，构建融合表达载体pGEX-4T-1-DOC-1，经酶切、测序鉴定后，用该重组质粒转化E.coliBL21，用IPTG诱导表达，Glutathione Sepharose 4B柱亲和层析纯化重组蛋白。

This thesis make a study on Vector-control VVVF system of asynchronous motor. In the course of study,making use of the mathematical model of asynchronous motor in MT axes . Then both open-loop control system and close-loop vector-control system are respectively simulated with simulation block SIMULINK in MATLAB.

本文对异电动机变频调速系统进行了研究、利用异步电动机在二相同步旋转MT坐标系下的数学模型，使用MATLAB中的仿真工具箱SIMULINK分别对开环控制系统和闭环矢量控制变频调速系统进行了仿真。

This thesis make a study on Vector-contorl WVF system of asynchronous motor. In the course of study, making use of the mathematical model of asynchomous motor in MT axes. Then both open-loop control system and close-loop vector-control system are respectively simulated with simulation block SIMULINK in MATLAB.

本文对异步电动机变频调速系统进行了研究，利用异步电动机在二相同步旋转MT坐标系下的数学模型，使用MATLAB中的仿真工具箱SIMULINK分别对开环控制系统和闭环矢量控制变频调速系统进行了仿真。

According to the different orientations of domain walls with respect to the (100) observation plane of a foil, 90°domain boundaries may be divided into two kinds. one is thin lens or ring shaped a-a 90°domain boundary, and the domain wall lies on the {110} plane; Usually, most of these domain boundaries are uncharged; according to the extinction rules for the (011) domain walls, the displacement vector 〓 along 〓 can be dertermined, which is parallel to the line of intersection between the domain wall and the plane consisting of spontaneous polarization vectors on both sides of domain boundary; from selected area electon diffraction of crystals including domain boundary, we not only examine slight difference in the crystal parts on both sides of the domain boundary, but also obtain crystallographic relationship between them, that is, there exists a 180°rotation symmetry operator along a normal of domain wall. The other is Z or ring shaped a-c 90°domain boundary along {010} direction, and the displacement vector 〓 runs along 〓 direction.

根据界面相对于样品中(100)观测面取向的不同，90°畴可分为两类：一类为薄透镜片状或环状的a-a90°畴，其界面平行于{110}，多数不带电，由消光规律可确定其位移矢量平行于畴界面与自发极化所在平面的交迹，即，〓方向，而从包含畴界的选区电子衍射图可知，这种不带电的90°畴界两侧存在微小的取向差，其界面两侧的结晶学关系为以界面法线为二次轴的旋转关系；另一类为Z状或环状的a-c90°畴，其界面平行于[010]或[001]，相应的位移矢量为〓方向。

It is shown from the preliminary discussions that the sea bottom friction vector is not opposite to the horizontal current flux vector.

初步讨论表明，海底摩擦矢量与水平流通量矢量并不在相反的方向上。

The fragments were then cloned into pAct15Gal vector in opposite directions to generate the RNAi vector against allantoicase gene.

将这两个基因片段反向插入表达载体pAct15Gal中，构建了用于尿囊酸酶基因RNAi的载体。

A new least-squares-based algorithm that introduces a within-class scatter with guaranteed classification performance in the design of least squares support vector machines is presented.This algorithm can obtain better correctness that reformulates primal LS-SVM problems with optimality criterion Min w′Mw where w is the weight vector corresponding the primal LS-SVM problems,M is the within-class scatter matrix.

提出了一个新的最小二乘支持向量机算法，该算法向最小二乘支持向量机优化模型中融入了类内散度思想，即用优化准则Min w′Mw对原LS-SVM进行重组合，w为对应LS-SVM中的权向量，M是类内散度矩阵。

Direct torque control is another high performance control technique of AC motor, it discard the decouple idea of vector control, but adapt flux oriented control and transient space vector theory, directly control stator flux and torque, it has the advantage of rapid torque response and less relying on stator parameters, but has the disadvantage of bigger torque ripple.

直接转矩控制技术是继矢量控制技术之后的又一种交流电机高性能控制技术，它摈弃了矢量控制中解耦的控制思想，采用定子磁链定向和瞬时空间矢量理论，直接对电机定子磁链和转矩进行控制，具有转矩响应快、对电机参数依赖小的优点，但它的不足之处就是存在转矩脉动。

The CO-OCS algorithm chooses the right regular vector of the user channel as the beamforming vector and the row span as an interference space from the left regular vectors of the interference channels. A suitable user lying in the orthogonal complement space of the interference space is scheduled to be free of suffering inter-cell interference and aggravating the interference in neighboring cells.

分布式干扰协调算法根据用户反馈的信道信息，以用户信道右奇异值向量发送波束成形，以干扰信道左奇异值向量张成干扰空间，按照最大化系统容量准则调度干扰空间的正交补空间中的用户，在躲避小区间干扰的同时不增加对邻小区的干扰。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。