查询词典 BP

ITS1 and ITS2 length of Phyllodium pulchellum is 225 bp and 209 bp.

排钱树的ITS1序列长度为225 bp， ITS2序列长度为209 bp，应可为区别。

The full-length cDNAs of rice and wheat S-adenosylmethionine decarboxylase gene were isolated and characterized. The rice SAMDC cDNA is 1560 bp in length, encoding a polypeptide of 398 amino acids, and the wheat SAMDC cDNA is 1351 bp in length, encoding a polypeptide of 392 amino acids. Both the rice and wheat SAMDC proteins contain the conserved proenzyme cleavage site and the PEST domains, which are commonly found in the SAMDC protein sequences of all eukaryotes.

克隆了水稻和小麦SAMDC基因的全长cDNA序列，所获得的水稻SAMDC基因序列长1560 bp，编码一个由398个氨基酸组成的多肽，小麦SAMDC基因序列长1351 bp，编码一个由392个氨基酸组成的多肽，二者均含有真核生物SAMDC蛋白所拥有的两个保守的氨基酸结构域：酶原剪切位点和PEST结构域。

Sequence analysis showed that the full-length cDNA sequence of Sc-SAMDC (GenBank Accession number: GQ246459) was 1 968 bp, with three open reading frames, tiny ORF, upstream ORF and main ORF. The mORF was 1200 bp encoding 399 amino acid residues with a molecular mass of 43.6 kD, and the deduced protein had two highly conserved function domains (proenzyme cleavage site and PEST domain).

序列分析显示，甘蔗Sc-SAMDC基因(GenBank Accession number： GQ246459) cDNA全长1968 bp，存在3个读码框（袖珍读码框tORF、上游读码框uORF和主读码框mORF），mORF长1200 bp，编码399个氨基酸的SAMDC酶原，预测分子量为43.6 kD，该酶原含有两个高度保守的功能结构域（酶原剪切位点和PEST结构域）。

In this study, we isolated the 1058 bp promoter region of the rhamnose synthase gene AtRHM1 from Arabidopsis genome by PCR, and created a series of deletions of AtRHM1 promoter ranging from -931 bp to +127 bp.

本实验从拟南芥基因组中分离了鼠李糖合成酶基因AtRHM1 1058 bp的启动子序列并对启动子5￠端进行了不同长度的缺失。

First, the traffic flow time series chaotic feature is extracted by chaos theory. pretreatment for traffic flow time series, and the wavelet neural networks model was build by this. Second, the chaotic mechanism and the chaotic probability is described. Based on chaotic learning algorithm, and the wavelet neural networks fast learning algorithm of traffic flow time series is designed based on chaotic algorithm. Last, a single-step and multi-step prediction of traffic flow chaotic time series is researched by BP neural networks, wavelet neural networks and wavelet neural networks based on chaotic algorithm. The results showed that the wavelet neural networks predictive performance is better than the BP networks and the wavelet neural networks by the simulation results and root-mean-square value.

首先，通过混沌理论提取了交通流量时间序列的混沌特征，并在此基础上建立了小波神经网络交通流量时间序列模型；接着，阐述了混沌学习算法的混沌机理、混沌产生的概率，设计了基于混沌算法的小波神经网络交通流量混沌时间序列快速学习算法；最后利用交通流量混沌时间序列对BP网络、非混沌算法的小波神经网络以及基于混沌算法的小波神经网络进行了单步预测和多步预测，并对预测结果的仿真图和真实值与预测值的方均根进行了比较，结果表明基于混沌学习算法的小波神经网络的预测性能明显优于应用BP网络和非混沌算法的小波神经网络。

In this study, homologous amplification and RACE technique were used to clone the encoding gene (SpTPS1) of trehalose-6-phosphate synthase from Selaginella pulvinata, which is an endemic exrophilous plant in China. The full-length cDNA is 3223 bp long, containing an open reading frame of 2790 bp.

本研究以我国特有旱生植物垫状巻柏为材料，采用同源扩增与RACE技术相结合的方法克隆了海藻糖-6-磷酸合成酶基因SpTPS1，cDNA全长3223 bp，包括一个2790 bp的开放阅读框。

Sequencing of the fragment indicated that the length was 619 bp and 559 bp, respectively.

测序结果显示，目标片段的大小分别为619 bp和559 bp，并将该标记转换为SCAR标记。

In this paper, the theory of artificial neural network is summarized; the analyse on BP neural network model is put stress on. For the predominance of artificial neural network"s dealing with non-linear complicated relation, the technology of artificial neural network is introduced into the evaluation of the highway bridge"s carrying capacity; and the preferences , the collection and disposal of stylebook, the structuring of BP neural network model are analyzed.

文中对人工神经元网络理论进行了综述，重点对神经元网络的BP算法进行了分析，利用人工神经元网络处理非线性复杂关系的优势，将人工神经元网络技术引入到公路桥梁承载力评估中；并对其中的参数选择、样本收集与处理、构造BP网络模型等进行了分析。

The cloned BBE gene sequences were 94.84% identified with the reported BBE genes in GenBank previously. Based on the cDNA sequences of COR and BBE ,two fragments about 400～500 bp from each gene with lower identity among them were cloned. The fusion gene BC (744 bp) is fused by the PCR technique. Then the promoter CaMV 35S driven, containing'forward BC fusion fragments-reverse pdk intron-reverse BC fusion fragments', plant siRNA expression vector were constructed based on the vectors pHANNIBAL and pART27.The work will lay the foundation for breeding a low morphine and high thebaine poppy.

利用blast及分子生物学软件DNAStar对COR和BBE基因的cDNA序列同源性进行分析比较，分别从各基因中筛选和克隆了一段同源性极低、约400～500 bp的片段；并应用重叠PCR法将其拼接成744 bp的融合基因BC，以中间载体pHANNIBAL和植物表达载体pART27为基础，构建了以CaMV 35S启动子驱动的含有"正向BC融合片段- pdk内含子-反向BC融合片段"的ihRNAi植物表达载体，通过转化野生罂粟，初步研究了以COR和BBE基因为靶标的RNAi对内源吗啡合成的抑制效果，为进一步培育低吗啡高蒂巴因的罂粟种质提供了依据。

It is, for example, precisely this control principle that is at the heart of the TNK-BP dispute, where BP and TNK each hold 50% of the venture, resulting in a strategic stalemate for the asset development.

这一控制法则正是TNK-BP纠份的核心所在，BP和TNK各拥有企业50%的股份，导致双方在资产发展战略上僵持不下。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。