查询词典 clusters

Possible geometrical structures and relative stability of Alkali metal azides (CaN6)n (n=1～5) clusters are studied by using the hybrid density functional theory(B3LYP) with 6-311G* basis sets.

利用密度泛函理论在B3LYP/6-311G*水平上对碱金属叠氮化合物(CaN6)n(n=1～5)团簇各种可能构型进行了几何优化，预测了各团簇的最稳定结构。

Less perfect forms, known as "boart" and "carbonado", are clusters of tiny crystals

稍次些的则由细小的晶体群组成，称为&圆粒钻石&和&黑钻石&。

I have therefore generated several p130cas RNA interference transgenic lines to determine the possible function of p130cas during neurogenesis. Knockdown of p130cas expression in developing neurons resulted in partial fusion in the commissures axon fascicles of CNS, photoreceptor axon targeting and guidance defects, and bulged synapse boutons at the neuromuscular junction. Moreover, reduced expression of p130cas in sensory organ precursor cells and proneural clusters resulted in bristle development defects.

为了了解p130cas的功能以及更进一步的分析p130cas在神经发育过程所扮演的角色，我建立一系列可以执行RNA干扰技术的转殖果蝇，结果显示在果蝇的神经中降低p130cas的表现会造成腹部神经索中原来排列整齐的commissure axons神经束偶尔会出现不正常的融合；若将p130cas专一地在果蝇眼睛中降低则会造成果蝇视神经突触目标辨识与突触导向的缺陷；而如果局部的运动神经系统中降低p130cas的表现会造成在神经肌肉接点的神经突触有澎大的现象；此外在果蝇的感觉器官前细胞以及原神经细胞丛，降低p130cas的表现则会导致刚毛发育的缺陷。

The sizes of ionic clusters are influenced by the radius of metal cations.

金属离子的半径大小，影响所形成的团簇离子的尺寸。

Step 4 is where we find new centroids for the clusters.

第四步是我们找到了集群的新形心。

Find the distance between centroids of the clusters and the data.

找到之间的联网和数据的质心的距离。

Calculate the new centroids of the clusters now that its data may have moved.

计算各组的新的质心现在，它的数据可能移动。

We have to specify "K" upfront and give the algorithm an estimate of the centroids of these "K" clusters.

我们必须指定的&K&前期，给算法是这些&k&的集群的重心估计。

If the new centroids are the same as the old centroids, then that means the data within the centroids have not moved and the clusters have stabilized!

如果新的质心是与旧质心相同，那么这意味着在质心的数据并没有感动，集群已经稳定下来！

The method firstly organizes support vectors in clusters in feature space, and then,it finds the pre-images of the cluster centroids in feature space to construct a reduced vector set.

此方法首先在特征空间中对支持向量进行聚类，然后寻找特征空间中的聚类中心在输入空间中的原像以形成约简向量集。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。