查询词典 sequence

Theorem 4(Relation of a Convergent Sequence between its Subsequence) If the sequence converges to ,then any of its subsequence is also convergent, and the limit is also .

定理4(收敛数列与其子数列间的关系)如果数列收敛于，那么它的任一子数列也收敛，且极限也是。

Rearrange infinite terms of a convergent sequence, the new sequence still converges, and my lovely Darboux Sum: http://en.wikipedia.org/wiki/Darboux_sum

可惜下一届的数学系同学们听不到老黄严谨的阐述数列改变无限项的顺序不影响它的收敛，以及可爱的达布和了。

If the Landweber method and pre-iteration method were convergent, the residue sequence would be monotone decreasing. By analyzing the convergence, the fact is demonstrated that for the severe ill-conditioned matrix of sensitivity coefficient, because of the limitation of the precision of the computer, the residue sequence is not monotone decreasing; thereby the reconstruction images diverge from the true distribution of the conductivity. So the generalized inverse method with threshold is established and the selection way of the regularization parameter is presented, by which the better images are reconstructed.

Landweber法和预迭代法收敛，则其残差序列单调递减，通过对它们的收敛性进行分析，证实对于病态性严重的灵敏度系数矩阵，由于受计算精度的限制，迭代过程中的残差序列不再单调递减，从而导致重建图象偏离实际电导率分布，因此作者建立了带阈值的广义逆算法，提出了规则化参数选择方法，获得了较好的图象重建质量。

In a method for retrieving sequences having a minimum PAPR in an OFDM (orthogonal frequency division multiplexing) system, by using characteristics in which all sequences of the OFDM system are classified into cosets having the same PAPR, PAPRs of sequences in which early two elements are fixed as '0' are calculated. A sequence having a minimum PAPR is selected from among the calculated PAPRs, and sequences allocated to the coset in which the selected sequence is included are retrieved as sequences having the minimum PAPR.

在一种用于在OFDM通信系统中恢复具有最低PAPR的序列的方法中，通过利用在其中将OFDM系统的所有序列分成具有相同PAPR的同余类序列的特性，计算两个开始项被固定为"0"的序列的PAPR，在所计算的PAPR中选择具有最小PAPR的序列，并且恢复分配至在其中包含所选同余类序列的序列作为具有最小PAPR的序列。

Northern crossbreed results showed that it is expressed only in human brain. This gene has a 50% amino acid sequence identity with Caenorhabdilis elegans, Anopheles gambiae sir arid Drosophila, and 94% amino acid sequence identity with Rattus norvegicus and Mus musculus.

Northern杂交结果表明：该基因只在人类大脑组织中表达，且与无脊椎动物线虫、疟蚊和果蝇的同源基因有50%的氨基酸同源性，与脊椎动物大鼠和小鼠的同源基因有50%以上的氨基酸同源性。

Random Sequence is very important in cryptographic technology, just as the famous cryptograph ! st Bruce Schneier said: within the six elements of Cryptographic Technology, the generation of Random Sequence is seldom discussed, but it is also important as others.

随机序列在密码技术中是很重要的，正如著名的密码学家Bruce Schneier所说：在密码技术的六个要素中，随机序列的生成是谈论最少的加密要素，不过它也和其它要素一样重要。

Random Sequence is very important in cryptograph ic technology, just as the famous cryptograph ! st Bruce Schneier said: within the six elements of Cryptograph ic Technology, the generation of Random Sequence is seldom discussed, but it is also important as others.

随机序列在密码技术中是很重要的，正如著名的密码学家Bruce Schneier所说：在密码技术的六个要素中，随机序列的生成是谈论最少的加密要素，不过它也和其它要素一样重要。

Based on these, we construct a class of nonlinear sequence generators, show that they have better cryptographical properties, and furthermore they can resist on the attack of cipher by cryptology analysis So they can be used as key sequence generators..

在此基础上自主设计了一类非线性序列生成器，证明了其具有良好的密码学性质，并且通过密码分析，表明它能抵抗现有的几种密码攻击，因此这类非线性序列适于做密钥流生成器。

To address the issue, we analyze the correlation and similarity of the different radii sequence and the different combination sequence with the full- ring-sample sequences, based on 642 δ13C data of cellulose fixed in tree-ring at 8 different radii of two Cryptomeria fortunei tree disks from Mt. Tianmu, a subtropical mountain of China. It suggests that 2 to 4 radii mixture sample is the better and more efficient choice for the tree-ring δ13C analysis. It had better to take samples at obtuse angle with each other when to take samples at two or three radii.

研究利用来自天目山的两个柳杉树盘的多方位的和整轮的碳同位素测试数据（共计642个），通过不同方位和不同方位组合的平均碳同位素序列与整轮碳同位素序列的关系的多角度的考查、分析发现，并不是采样的方位数越多越好，选择2~4个方位采样合并分析树轮稳定碳同位素，既经济方便又能比较好的反映一棵树的δ13C变化过程与趋势。

For cloning antifreeze protein gene from a desert darkling beetle Microdera punctipenis dzunarica in Xinjiang, the primers were designed according to the core sequence of AFP gene deposited in GenBank, and the cDNA fragment about 294 bp named as MpAFP5 was amplified with the RT-PCR and 3'-RACE technique. Sequence analysis revealed that the cloned cDNA fragment named as MpAFP5 coded the mature peptide of AFP.

根据GenBank中已发表的昆虫抗冻蛋白基因的保守序列设计引物，利用RT-PCR技术结合3'-RACE扩增的方法，从新疆荒漠昆虫准噶尔小胸鳖甲Microdera punctipenis dzunarica中获得了长约294 bp不含信号肽的抗冻蛋白cDNA片段，命名为MpAFP5，其全长序列为363 bp(GenBank注册号为：AY821792)。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"