查询词典 vector density

Although we can preallocate a given number of elements in a vector, it is usually more efficient to define an empty vector and add elements to it (as we'll learn how to do shortly).

虽然可以对给定元素个数的 vector 对象预先分配内存，但更有效的方法是先初始化一个空 vector 对象，然后再动态地增加元素（我们随后将学习如何进行这样的操作）。

AIM: To construct the eukaryotic expressing vector of human cbl and test its expression in African green monkey kidney cell line COS 7. METHODS: Human cbl gene tagged with flag was amplified from pEFHAcbl plasmid by PCR. The product was cloned into pGEM T easy, sequenced and then subcloned into eukaryotic expressing vector pcDNA3.1.

以含有人全长cbl cDNA的质粒pEFHAcbl 为模板，采用PCR方法扩增cbl基因，并在其N 末端带上含24 bp的flag标签，克隆到pGEM T easy载体并测序，再亚克隆至真核表达载体pcDNA3 1，酶切鉴定正确后采用脂质体法瞬时转染COS 7细胞，Western blot检测flag cbl在细胞中的表达。

A SV40 based shuttle vector pSP189 and African green monkey kidney cell line was appied , which constitute a shuttle vector /mammalian cell system to detect mutagenesis in vitro induced by animal drugs olaqiundox and quinocetone.

本研究将基于SV40病毒的短暂复制型穿梭质粒pSP189与非洲绿猴肾Vero细胞组成穿梭质粒／哺乳动物细胞诱变检测系统，并将该系统应用于兽药喹乙醇和喹烯酮的诱变性检测。

METHODS: Human cbl gene tagged with flag was amplified from pEFHAcbl plasmid by PCR. The product was cAIM: To construct the eukaryotic expressing vector of human cbl and test its expression in African green monkey kidney cell line COS7. METHODS: Human cbl gene tagged with flag was amplified from pEFHAcbl plasmid by PCR. The product was cloned into pGEMT easy, sequenced and then subcloned into eukaryotic expressing vector pcDNA3.1.

以含有人全长cbl cDNA的质粒pEFHAcbl 为模板，采用PCR方法扩增cbl基因，并在其N末端带上含24 bp的flag标签，克隆到pGEMT easy载体并测序，再亚克隆至真核表达载体pcDNA31，酶切鉴定正确后采用脂质体法瞬时转染COS7细胞，Western blot检测flagcbl在细胞中的表达。

Malaria transmission has not been blocked yet and density of anopheles vector is the key factor affecting malaria incidence.

疟疾传播尚未完全阻断，媒介按蚊密度高低是影响疟疾发病的重要因素。

The Polarization Vector P and the Effective Charge Density and Surface Charge.

极化向量 P ，有效电荷密度与表面电荷。

Then, both the stationary and non-stationary random response of hysteretic system with cubic rigidity and sticky damp were deduced and calculated. In the research of colored white noise, the filter for shaping the power spectral density was designed and the random state response of enlarged vector was gotten. With this, the experimental power spectral curve was changed into colored white noise and the random response could be easily calculated.

对平稳白噪声，给出了平稳响应的求解方法并对平稳状态下的模型参数对响应的影响进行了比较与分析；在有色白噪声的研究里，通过有色白噪声的扩阶方法和构造成型滤波器来计算有色白噪声的响应，从而解决一类工程实际振动问题的仿真模拟。

It is compact in structure, stable and efficient for practical uses with high package density. 7. Based on negative binary coding method, a modified two-dimensional crossed-ring interconnection network and four subarrays outproduct technique, an optoelectronic parallel martix-vector complex multiplication processor is presented.

借助负二进制数字表达、空间编码加权-移位四区域复数外积乘法技术和改进的矩阵-矢量啮合算法，研制了光电混合并行处理的矩阵-矢量乘法器。

We propose a unified method to approximate important geometric attributes, including normal vector, gauss curvature, mean curvature, principal curvatures and principal directions on point sampled surface. Based on MLS projection our method is robust to noise and stable to the sampling density.

曲面的微分性质包括法向量和切平面、高斯曲率、平均曲率、主曲率和主方向，在计算机图形学、机器视觉和计算机辅助设计等领域发挥了重要的作用，比如曲面绘制、内外测试、曲面重建、曲面简化、去除曲面噪声和模型分割等。

To obtain the likelihood function indicating the uncertainty of observed information, noisy data is firstly expressed by a set of data vectors instead of a single vector, and then transferred to probability density curve defined in model space through confidence value defined in data space.

我们将数据向量的概念扩展为数据向量的集合，通过引入数据空间内的信赖度，把数据噪声转移到模型空间的概率密度函数上，即获得了反映数据本身的不确定性的似然函数。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。