简并核

We also try to give a new definition about the AGB stars. We may refer TPAGB stars as homology AGB stars and the second ignition of hydrogen is an appropriate criterion of the HAGB, since after the second ignition of hydrogen, AGB stars have similar properties and structures: a degenerate CO core covered by double thin burning shells.

我们还尝试着给出一个有关AGB星的新的定义，即可以将热脉动AGB星称做相似AGB星，把恒星是否经历氢的第二次点燃看作恒星是否处于相似AGB的判据，因为在氢的第二次点燃之后，AGB星具有相似的性质和结构：一个简并的碳氧核上面覆盖着两层很薄的燃烧壳层。

The cDNA sequence encoding ubiquitin from Musca domestica was cloned by RT-PCR and sequenced.

本研究根据GenBank已登录的真核生物泛素编码框的氨基酸序列，设计一对简并引物，RT-PCR克隆了家蝇Musca domestica泛素基因的编码区cDNA序列，并进行了测序。

The undistinguishable relationship, the attribute -oriented generalization and the reduced operation algorithm are discussed. The n a tapping method for attribute-oriented RST data is presented. Applying the b est reduction and kernel operation to the differential matrix, the decision rule s in logical meaning are given.

在此基础上，提出了一个面向属性的RST的数据挖掘方法，即基于系统的关系数据库形成差别矩阵，并对差别矩阵施行最佳约简和核操作，给出在逻辑意义下的决策规则，从而完成领域的知识发现。

Based on Rough Set Theory, a neuralnetwork model of enterprise tacit knowledge communication isestablished and studied. Followingly this part discusses thedecision-making mechanism of enterprise tacit knowledgecommunication. R analyzes the multiple attribute decision-makings inenterprise tacit knowledge learning and a multiple attributedecision-making model is provided.

运用粗糙集理论对条件属性进行相对约简，通过去掉冗余条件属性，得到决策表的最小条件属性集和核，以决策表的某个约简作为输入层神经元，根据经验公式确定隐含层神经元个数，并以核元素连接对应输出层神经元，通过去掉冗余训练样本，提高沟通的学习效率，构建了企业隐性知识沟通神经网络优化模型。

Homologous analysis of the deduced amino acid sequences were performed by BLAST and subsequently compared with GenBank data.

根据衣藻、矮牵牛花、Pisumsativum等真核生物hsp70a氨基酸高度保守序列设计两对简并引物，以热休克盐藻cDNA为模板进行巢式PCR扩增，产物经T-A克隆转化至JM109大肠杆菌中，经筛选后测序，将测序结果推导成氨基酸序列进行同源性分析，获得了盐藻热休克蛋白70a cDNA片段。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。