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Similar lamellar hybrids can be obtained from octa(y-chloroammoniumpropyl) polyhedral oligomeric silsesquioxanes dodecyl benzene sulfonic acid sodium salt C_(18H_(29)NaO_3S, DBSS. Further research shows that different POSS to surfactant ratios result in different arrangement of layers: when there exists excessive POSS, the layer is arranged in a "Alkyl-POSS-POSS-Alkyl" sequence; while on the contrary, the layer is in "Alkyl-POSS" sequence.

实验研究表明，通过调整POSS和表面活性剂的物质的量比例可以改变片层结构，发现当POSS成分大大过量的时候，片层重复单元按照&烷基-POSS-POSS-烷基&顺序排列，对应较大的层间距；当表面活性剂成分大大过量的时候，片层重复单元按照&烷基-POSS&顺序排列，对应较小的层间距。

The progress of complex structure function chart is introduced too. We study the method which we can transform a complex structure to the simple sequence structures in this paper. In addition, several examples on how to design sequence chart are also described i...

分析了复杂结构功能表图的进展情况，提出了将复杂结构转变为单序列结构的方法，并通过举例说明复杂结构功能表图的顺序图设计。

Mitochondrial cytochrome b sequence were used to study the molecular evolution and phylogeny of Anser cygnoides(15 breed of Chinese goose), Anser anser(2 breed of domestic European goose) and Anser albifrons(the lesser white-fronted goose, Genbank accession number AF363031). Sequence analysis revealed that there were 29 variable sites and 4 haplotypes in 45 sequences, nucleotide diversity and haplotype diversity were 0.0068,0.45 respectively, insertion/deletion or frameshift mutation were not found in Cyt-b gene sequences(1143bp).

本实验测定了中国家鹅15个品种、欧洲鹅2个品种共44个个体的细胞色素b基因全序列，与Genbank库中自额雁细胞色素b基因序列合并在一起比对分析，17个家鹅品种和白额雁细胞色素b基因全序列均为1143bp，序列中没有缺失、插入或移码突变，共检测到29个变异位点、4种单倍型，核苷酸多样度和单倍型多样度分别为0.00648和0.45。

In our former study, we cataloged genes expressed in human brain (about 10,000 gnes), and sequenced the orthologous sequence of these genes in chimpazee. In this study, we selected 16 of these positive-selection genes and then using PCR and Sequencing technique we acquired orthologous sequence in another two representative primates: white-brown ape and macaca, and then took further evolutionary analysis.

本文从目前已知在人的大脑中表达的基因中，选出16 个在人和黑猩猩的比较中明显受到正向选择的基因，利用PCR扩增技术和基因序列测定技术，获得了另外两个灵长类代表动物小猿、猕猴的直系同源序列，并进行了进化分析。

The invention provides a human McAb to tetanus toxin, being a human antibody, which consists of an antibody variable region and an antibody constant region or not, having the ability of neutralizing the tetanus toxin, with the variable region gene and protein sequence indicated as the sequence table 1. The invention is characterized in that the antibody can not induce obvious allergic reaction, has higher titer and longer effect without any animal virus pollution, and can be produced in an unlimited quantity, which also provides the relating biological functions, the testing methods, the manufacturing method and the application.

A 本发明提供一种人源抗破伤风毒素单克隆抗体，其为人源抗体，包括抗体可变区，该抗体包括或不包括抗体的恒定区，该抗体具有中和破伤风毒素的能力，抗体可变区的基因和蛋白质序列如序列表1所示；其具有不会诱发明显的过敏反应，有较高的效价且长效，产品无动物病毒污染，可以无限量地生产；本发明还提供了其生物功能、测定方法、生产制造方法及其应用。

Previously, short echo time STEAM sequence and short TE PRESS sequence have been used to quantify brain Cr concentration.

综上所述，本研究旨在通过动物实验，以长TE的PRESS序列外标准方法及LCModel软件定量检测活体小猪的脑Cr浓度，然后用高效液相色谱方法分析相应离体脑匀浆液的Cr浓度，比较两种方法检测结果的相关性，以此探讨活体~1H-MRS方法检测结果的准确性。

This paper discusses the pulse-width modulation switch sequence of arbitrary-number-level inverters, and proposes a switch sequence with loss balance of power electronic devices.

讨论任意电平逆变器脉宽调制(pulse-width modulation，PWM)序列，提出一种电力电子器件损耗均匀分配的序列方式。

It shows that in some circumstances, not only the weight 2 self-terminating sequence, but also the compounds of the weight 2 self-terminating sequence have significant affections on the low weight distribution.

仿真显示，在有些情况下，不仅重2自结尾序列对低码重分布有重要的影响，重2自结尾序列的组合对低码重分布也有着重要的影响。

This research is taking sea perch as the material, and cloning the Syntaxin 1B gene. After extracting RNA from sea perch tissue, we gained the first chain of cDNA by RT-PCR. Then designing a pair of primers according to the sequence of Syntaxin 1B from other organism. Based on the first chain of cDNA cloned from sea perch, the partial sequence of Syntaxin 1B gene is been cloned by using TD-PCR and we received the 751bp fragment at last.

本实验从鲈鱼脑组织中提取总RNA，通过反转录得到cDNA第一条链，根据已克隆出的其它生物的Syntaxin 1B基因序列，设计并合成引物，在妒鱼syntaxin1B基因部分序列克隆与分析 cDNA第一条链的基础上使用降落PCR，进行体外扩增妒鱼 Syntaxin IB基因的部分序列，得到长度为75 lbP的片断，在胶中洗脱下该片段，与pMD 18一T载体链接，转化入感受态细胞，挑取阳性克隆扩大培养，提取质粒，经HindIH和x一gaH两内切酶消化得到75 1 bp的片断，证明链接成功。

Uniprocessor designs have built-in bottlenecks.the address and data buses restrict data transfers to a one-at-a-time flow of traffic.the program counter forces instructions to be run in strict sequence.even if improvements in performance are achieved by means of faster processors and more instruction parallelism,operations are still run in strict sequence.however,in a uniprocessor,an increase in processor speed is not the total answer because other factors,such as the system bus and memory,come into play.

单处理器设计有内置的一些瓶颈。地址和数据总线限制数据传输的同时同地址的数据冲突情况。即使是通过更快的处理器和更多的并行指令，当然也包括维护，这些方式来提高的性能，程序的运行仍然被限制在严格的程式规则中。然而，在一个单处理器里，处理器速度的提高时不能完全解决这个问题的，这是因为像系统总线和存储器等其他因素同样在起作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷