查询词典 reciprocal fundamental vectors

In the third part, the simulation research on asynchronous motor DTC system base on six voltage space vectors and twelve voltage space vectors are realized in MATLAB/Simulink. Through comparisons of the two simulation results, the method of minifying torque ripple is obtained.

第三部分，运用MATLAB/SIMULINK进行了基于六矢量和十二矢量的两种异步电动机直接转矩控制系统的仿真研究，搭建了系统的仿真模型，并对仿真结果进行了对比，得出减小直接转矩控制转矩脉动的方法。

Combining the advantages of fixed search pattern and spatial correlation search pattern,the algorithm employs the high search accuracy of DS and the high search speed of ARPS.It performs zero motion prejudging for immobile macroblocks between the two adjacent frames to reduce the computational complexity,and employs the spatial correlation of motion vectors to improve the quality of predicted motion vectors.

该算法利用DS算法搜索精度高和ARPS算法搜索速度快的特点，综合固定模式搜索和空间相关搜索两方面的优点，对于相邻两帧图像中的不变宏块采用零运动预先判断以减少算法的计算量，并利用运动矢量的空间一致性提高预测运动矢量的质量。

This method reshapes the SAR images matrix into vectors, and analyzes the matrix which is composed of the two vectors with PCA process, getting a conclusion that the minor component image is the change portion.

该算法将SAR图像转化为列向量，对两个图像向量组成的矩阵进行主分量分解，其图像的变化部分则表征为矩阵的次分量成分。

The PCR products were examined by agarose gel electrophoresis. The target gene fragments were purified by gel extraction kit and ligated to cloning vector pMD18-T. The recombinant vectors were transformed into host strain E. coli K802 by lithium chloride method, screened and identified with PCR and restrictive enzymatic digestion. Their sequences were confirmed by DNA sequencing.(2) sTWEAK1 gene was subcloned into expression vector pProEx HTb and transformed into E. coli BL21. sTWEAK2 gene was subcloned into expression vector pMAL-C2x and transformed into E. coli TB1. The recombinant vectors were screened and identified with PCR and restrictive enzymatic digestion. The recombinant fusion proteins were induced to express with IPTG, detected by coomassie brilliant blue-stained SDS-polyacrylamide gel electrophoresis , and confirmed by Western blot analysis.(3) The sTWEAK1 fusion protein was purified with Ni-NTA Spin Kit.(4) The biological activity was assayed on transformed and tumor cells by microplate photometer after crystal violet or sulfur rodamine B staining.(5) The contents of IL-8 in the supernatant of 1990 cell cultures were determined by ELISA.(6) The morphological changes of the sensitive cells were observed by light and transmission electron microscopies.(7) The cell cycle and apoptotic rate were assayed by flow cytometry in 1990 and M85 cells.(8) The effect of fusion proteins on induction of NF-κB in 1990 and LOVO cells was detected with Dual-Luciferase Reporter Assay system.(9) The TWEAK gene was subcloned into Adeno-X Viral DNA with pShuttle vector and transfected into HEK293 cells by lipofectamine method.

(1)本研究用RT-PCR方法，从人组织细胞总RNA中扩增可溶性TWEAK胞外区（sTWEAK1和sTWEAK2）的cDNA序列及全长编码序列，用琼脂糖凝胶电泳分析PCR产物，胶回收目的基因片段，连接到pMD18-T克隆载体中，转化大肠杆菌K802，PCR和酶切筛选阳性克隆，全自动DNA测序验证序列；(2)sTWEAK1和sTWEAK2分别亚克隆到pProEx HTb和pMAL-C2x表达载体中，分别转化大肠杆菌BL21和TB1，PCR筛选和酶切鉴定，阳性克隆用IPTG诱导表达，表达产物用SDS-PAGE分析和Western blot验证融合蛋白；(3)用NTA-Ni Spin试剂盒初步分离纯化sTWEAK1融合蛋白；(4)用体外培养的肿瘤细胞和正常对表达产物进行活性检测，贴壁细胞用结晶紫染色法，悬浮细胞用磺酰罗丹明B染色法，酶标仪检测OD值；(5)敏感细胞用ELISA法检测细胞培养上清中IL-8的含量；(6)用光镜和电镜观察敏感细胞死亡和细胞凋亡情况；(7)用流式细胞仪分析表达产物对敏感细胞凋亡率和细胞周期的影响；(8)用双荧光素酶报告基因检测法，测定表达产物对敏感细胞NF-κB的影响；(9)用pShuttle穿梭质粒将TWEAK重组到腺病毒载体上，用脂质体转染法转染HEK293细胞，PCR鉴定重组质粒。

During the procedure for searching k nearest neighbors of tested sample, the particle swarm moves jumpily, and those document vectors that are impossible to be the k closest vectors are kicked out quickly.

在搜索k近邻的过程中，粒子群跳跃式移动，掠过大量不可能成为k近邻的文档向量，从而可以快速找到测试样本的k个近邻。

Firstly, through applying Hilbert-Sobolev norm to measure fidelity term, a total variation filter is used to smooth the normal vectors of the level curves of a noise image. And then, a model is constructed to find a surface which fit smoothed normal vectors.

该方法首先引入负指数Hilbert- Sobolev范数度量逼近项，对图像水平曲线的法向量场进行全变差正则化磨光，然后构造出一个曲面拟合模型，拟合磨光后的流场。

Thus, we may have to extend our view from one dimensional axis to multi-dimensional space, m -space, and to extend our research tools from scalars to multi-component vectors, m -vectors.

因而，我们可能要扩展我们的眼光，把我们的眼光从一维的&数轴&扩展到&多维空间&，把我们的分析工具从&标量&扩展到&多元向量&。

The BDDcFⅧ gene was ligated behind PUB and 20H1 promotors to create lentiviral vectors pTK161 and pTK162. Meantime lentiviral vectors pTK161' and pTK162' were produced by cloning a green fluorescent protein into pTK151 and pTK152, which was driven by PUB and 2OH1 promotors respectively. Vector supernatant were prepared by using transfer calcium phosphate mediated-cotransfection of 293T cells. The virus vector,△NRF packaging-plasmid, and VSV-G envelope-plasmid was assayed by titers and cFⅧ activity in cell culture supernatant after infection into 293T cells.

用构建携带cFⅧ基因的慢病毒载体pTK161和pTK162（含20HI启动子），同时构建含绿色荧光蛋白的慢病毒载体pTK161'和pTK162'（含2OH1启动子）的方法，分别与包装质粒△NRF、包膜蛋白质粒VSV-G共转染293T包装细胞，将包装好的病毒颗粒再感染293T细胞，检测病毒滴度和培养细胞上清中cFⅧ活性。

Second,. according to the sector of voltage space vectors, adjacent switching state vectors are selected to calculate on-durations under volt-second balance principle. The questions of judging sectors and sector transition are discussed and qualitative analysis of performance is carried out.

由三相电压源型逆变器输出电压波形得到六个有效开关状态矢量，这六个开关矢量和两个零矢量合成一组等幅不同相的电压空间矢量，去逼近圆形旋转磁场。

The experimental results indicate that the improved algorithm can describe feature points in a larger region, and can reduce mismatch probability of experimental images from 19% to 11% because global context vectors based on global shape information are induced to the SIFT vectors based local Information.

实验结果表明，由于在基于局部信息的SIFT向量中加入基于全局形状信息的全局向量，使得当特征点的尺度较小时，可以借助更大邻域范围内的信息对其进行描述，从而降低了由于局部信息相似而造成的误匹配的概率。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。