查询词典 vector-potential

Methods: total rna was isolated from hepatocellular carcinoma cell line hepg2. subsequently, a 1kb fragment of hccr 2 encoding region was amplified by rt pcr and cloned into promega teasy vector. after confirmed by dna sequencing, the full length encoding region of hccr 2 was amplified by pcr and cloned into pires2 egfp. the recombinant eukaryotic expression vector was confimed by dna sequencing.

从人肝癌细胞株hepg2提取rna，利用rt pcr方法，先克隆出一包括hccr 2编码区的长约1 kb的片段，并将其与t载体连接并转化，测序证实无误后，以hccr 2/t载体为模板，再通过pcr克隆出hccr 2的编码区序列，将其连接到pires2 egfp真核表达载体，并通过测序获得证实。

METHODS: Total RNA was isolated from hepatocellular carcinoma cell line HepG2. Subsequently, a 1kb fragment of HCCR2 encoding region was amplified by RTPCR and cloned into Promega TEasy vector. After confirmed by DNA sequencing, the fulllength encoding region of HCCR2 was amplified by PCR and cloned into pIRES2EGFP. The recombinant eukaryotic expression vector was confimed by DNA sequencing.

从人肝癌细胞株HepG2提取RNA，利用RTPCR方法，先克隆出一包括HCCR2编码区的长约1 kb的片段，并将其与T载体连接并转化，测序证实无误后，以HCCR2/T载体为模板，再通过PCR克隆出HCCR2的编码区序列，将其连接到pIRES2EGFP真核表达载体，并通过测序获得证实。

The speed-sensorless vector control and the identification of motor parameters in this paper are the two novel research of vector control.Using asynchronous machine's mathematic model in three-phase static reference frame, this paper has derived it's mathematic model in two-phase static reference frameand in two-phase rotating reference frame, and got the coordinate transformance formulus based on the constant magnetic force and power force, by compared different field orientation methods, we can find that field orientation at rotor field can realize the decoupling of the stator current flux component

无速度传感器矢量控制和电机参数辨识是矢量控制的两个新的研究方向，本文利用异步电机在三相静止坐标系下的数学模型推导出两相静止坐标系、两相同步旋转坐标系下的数学模型，根据磁动势守恒和功率守恒的原则，得出各坐标变换公式；通过不同磁场定向方式的比较发现，异步电机按转子磁场定向时定子电流励磁分量和转矩分量可以比较方便地实现解耦。

The main works include: The topology structure and the switching function of the TSMC,the widely employed space vector modulation strategy without zero vector at rectifier stage and the transrectification of the TSMC were introduced.

论文的主要工作包括：介绍了TSMC的拓扑结构和开关传递函数、目前普遍采用的整流级无零矢量的空间矢量调制策略以及TSMC的换流。

Fractal theory quantifies these phenomena mainly by ascertaining their fractal dimensions.Box-counting algorithm is the one most practical and also most frequently adopted method.The traditional box-counting algorithm is based on the grid document and has some serious shortcomings,such as the distortion of the image being enlarged,the trivialness of the process and the finite of the iterative degree,etc.The vector box counting algorithm developed in this paper takes vector document as the carrier and has three advantages.

传统的计盒算法是基于栅格文件的方法，由于其存在图像放大后失真、过程繁琐和迭代次数有限等缺陷，因此为了准确简单方便地进行分维计算，开发了一种以矢量文件为载体的矢量计盒算法，并详细阐述了这种算法的数据结构、处理流程和主要函数，同时以Koch曲线、骨肿瘤边界及水系证明了矢量计盒算法的准确性和优越性。

This method is tectonic on foundation of nuclear function theory special and linear space, each issue of rank nucleus of progression of the Volterra that seek solution changeover uses output observation vector to be in to beg Xierbaite the some in the space child the umbriferous problem on the space, make originally complex, hard calculative is nonlinear in the approachs a problem to be built in place compose linear space of Volterra progression of the system solve ably with the means that accumulates inside vector, gave out specific algorithm.

该方法在核函数理论基础上构造非凡线性空间，将求解Volterra级数的各阶核的新问题转换为求用输出观测向量在希尔伯特空间中某一子空间上的投影新问题，使原本复杂、难以计算的非线性系统的Volterra级数的逼近新问题在所构建的线性空间中巧妙地以向量内积的方式解决，并给出了具体算法。

While the returned vector is much less useful than an unstripped vector for relevance ranking, it will usually be much smaller.

虽然返回的向量比未抽除向量在相关性计算方面用处少很多，但是它通常更小。

Vector acoustic field is a very important part of sound wave, but the vector information of acoustic wave has been unwitnessed for a long time.

矢量声场时声波场的重要组成部分，但在相当长的一段时间内没有受到重视，声波的矢量信息却被忽略了。

And then, the pBI101.2 wirelike vector and the promoter fragment of 886bp were acquired. Becase the promoter was modified by the HindⅢand BamH I, the acquired target genes fragment, digested by the restriction endonuclease, was matched to the wirelike vector.

由于在启动子两端有人工设计合成的HindⅢ和BamHⅠ酶切位点，经上述双酶切消化后，回收目的基因片段与线状载体的粘性接头恰好匹配。

Xenopsylla Cheopis important vector in Yunnan and it is main vector role in some place of Yunnan province.

致痒蚤在云南省鼠疫流行区可充当重要媒介角色，在某些地区起到了主要媒介的作用。

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