相似性

The matrix similarity also is matrix theory side important at the same place, develops has emphatically the big significance to the matrix similar research.

矩阵相似性又是矩阵理论的极重要一块，开展对矩阵相似性的研究有着重大意义。

Traditional dimension reduction methods about similarity query introduce the smoothness to data series in some degree, but lead to the disappearance of the important features of time series about non-linearity and fractal.The matching method based on wavelet transformation measures the similarity by using the distance standard at some resolution level.

传统相似性查询的维数约简方法导致时间序列的非线性和分形这些重要特征消失，基于小波变换的匹配方法是通过某一分辨级的距离标准来度量相似性。

By partitioning the protein space in spherical polar coordinates, the space density of the main elements in protein molecules could be obtained easily and quickly.

实验结果表明，该方法可作为各种结构蛋白质相似性比较的辅助手段，不仅能较好地反映蛋白质分子的空间结构特征，而且还有令人满意的时间复杂性，对大分子的相似性比较及进一步分类将有重要意义。

In a word,the similarities not only exist in syncopation and syllable structure ,but also in the changing trend of inflection.

英、汉两种语言语音间除切分音位与音节结构的相似性外，其实在这两种语言中音调的音高变化趋势方面也有一定的相似性。

The deduced amino acid sequence of LAR from tea plant showed high identity with that of other plants, for instance 71%, 70% and 68% with Vitis vinifera, Gossypium arboretum and Fragaria ananassa, respectively.

同源性分析表明茶树无色花色素还原酶基因编码的氨基酸序列与其他植物具有较高的相似性，例如与亚洲棉、草莓和葡萄的相似性分别为70%、68%、71%。

Snakehead IgL exhibits 78%, 77%, 32% and 31% overall identity to Japanese amberjack, spotted wolfish, channel catfish and rainbow trout IgL, respectively.

序列比对分析表明乌鳢IgL与五条鰤和花狼IgL的相似性为78%和77%，而与斑点叉尾鮰和虹鳟的相似性仅为32%和31%。

BLASTX analysis revealed that 47﹪ of the ESTs displayed the significant homology to functionally known or unknown genes from GenBank database. tBLASTx analysis suggested that 12 unisequences showed significant similarity to dbEST entries, of which 9 unisequences were from cDNA libraries of other biotrophic basidiomycetes.

BLASTx分析表明，47﹪的ESTs与GenBank中报道的功能已知或未知蛋白具有相似性。tBLASTx分析表明12个uniseqs与EST数据库中的序列具有相似性，其中9个是来自担子菌的cDNA文库。

In order to direct the construction of plant germplasms by elucidating the relatives among plants at the level of gene, CYP86MF gene analogues from 11 species of 6 genera in Cuciferae were respectively obtained by PCR strategy using gene specific primers designed from conserved regions of CYP86MF gene reported. Sequence comparisonindicated that the similarities among the genes at nucleotide level were over 80%, and the similarities at amino acid level remained above 70%. The differences between the genes at nucleotide and amino acid level between species were 1.0%~ 5.7% and 2.6%~ 7.3% respectively, while those between genera 5.6%~ 22.5% and 7.3%~ 31.2%, respectively. Phylogenetic analysis showed that Brassica was closely related to Raphanus, followed by Rorippa Scop, Arabidopsis Heynh, Capsella Medic orderly, most distantly related to Orychophrogmus.

为了从分子水平阐明十字花科植物间的亲缘进化关系，给植物种质资源的创建提供理论依据，试验根据课题组已报道的CYP86MF基因编码的氨基酸保守区域设计特异引物，运用PCR技术分别从十字花科6个属11个物种中分离克隆到了CYP86MF基因的同源序列，经比较分析，结果表明：这些同源序列的相似性达80%以上，所推导的氨基酸序列相似性达70%以上，且两者种间差异分别为1.0%~ 5.7%和2.6%~ 7.3%，属间差异分别是5.6%~ 22.5%和7.3%~ 31.2%；由氨基酸序列构建的分子系统树可知，在亲缘进化关系上芸薹属与萝卜属较近，其他依次为蔊菜属、拟南芥属、荠菜属，而与诸葛菜属最远。

The deduced amino acid sequence of grass carp IgM had the highest similarity with Cyprinus carpio （68%）.

序列比对分析表明草鱼IgM与鲤的相似性高达68％，与斑马鱼、斑点叉尾鲴、鳜以及大西洋鳕的相似性分别为61％、43％、33％和30％。

Sequencing of this 4.3kb DNA fragment revealed that there is a β-glucosidase gene urnbgl3A with an ORF of 1956bp, encoding product shared 63% identity and 79% similarity with a beta-glucosidase (GenBank NO:AAX16378.1) of uncultured murine large bowel bacterium BAC 31B, and shared 50% identity and 67% similarity with a beta-glucosidase-related glycosidases (GenBank NO:ZP-00308419.1) of Cytophaga hutchinsonii.

测序结果表明在4.3kb的片段上有一个全长为1956bp的ORF，编码一个可能的β-葡萄糖苷酶基因umbgl3A，其编码产物与一个来源於小鼠大肠未培养细菌的β-葡萄糖苷酶(GenBank Acession NO：AAX16378.1)一致性为63%、相似性为79%；与哈氏噬纤维菌的β-葡萄糖苷酶(GenBank Acession NO：ZP-00308419)的一致性为50%、相似性为67%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。