聚点

Methods tetrahydrofuran: 0.2% citric acid (14∶1∶85) was used as mobile phase at a velocity of 1 ml·min-1 and the detection wavelength was set at 360nm. ResultsRutin was found in SFE extract of Sparganium Stoloniferum.

方法在聚酰胺膜上点样，以80%乙醇作为展开剂鉴别芦丁，采用Symmetry C18色谱柱，以乙腈-四氢呋喃-0.2%枸橼酸（14∶1∶85）为流动相，柱温25℃，在流速为1.0 ml·min-1，360 nm的检测波长下，测定芦丁含量。

Beta-thalassemia major is a serious hereditary hemolytic anemia which does great harm to human being.It is a monogenic disease characterised by a reduced synthesis of beta-globin chains,which dues to the Doint mutation or deletion of beta-globin gene and its control region.It not only decreases the hemoglobin level,but breaks the balance of alpha/beta synthesis ratio.The major cellular pathogenetic mechanisms in beta thalassemia are based primarily on the deleterious effects produced by the accumulation of the excess alpha globin chain.These excess alpha-globin chains cannot form stable tetrameric structure and deposit in erythroid cells.They cause large ineffective erythropoiesis on their own,accelerate red cells destruction,and lead to hemolysis.

地中海贫血是一种对人类健康危害严重的遗传性溶血性贫血病，是因β-珠蛋白基因及其调控序列的点突变或缺失致使β-珠蛋白肽链合成减少或完全停止，这不仅使患者血红蛋白水平降低，而且使原来在数量上与之持平的α-珠蛋白肽链相对过剩，这些相对过剩的游离α-珠蛋白肽链并不能形成稳定的四聚体，它们沉积在红细胞中导致了大量无效红细胞生成和红细胞寿命缩短，引起了严重的溶血性贫血。

It can supply with a good basis for getting polys crosslinked,grafted and other special polymers with various structures and function by changing crosslinked density and grafted density through binary copolymerization or trimerization.

而且通过二元或三元聚合，来改变交联点和接枝点的密度，为进一步得到结构更加多样化与性能各异的聚芳醚的交联聚合物、接枝聚合物及其它特种高分子材料，提供一个良好的基础。

For your country, China at present it is so industrialised and indeed the producer of the world and your products are in general good to be a successful exporter i believe China has to be a friend to everyone the more friends the better even with Japan the only problem i can see for your country is if labour costs rise, that may be inevitable when Chinese people wont more and more but perhaps i am wrong may be i am missing an important point and that is of global worming perhaps all the countries should get together as friends and perhaps save our world.

对於你的国家，中国目前它是如此工业化和的确那生产者那世界和你的产品是大体上善行是成功的输出者我相信以致於中国必须当对每个人一个朋友较多的朋友愈比较甚至由于日本唯一的问题我为你的国家能看见是如果劳工费用升，那可能是不可避免的当中国人习惯越来越多的但是也许我是错误的可能是我正在不明白重要的点和那是全球的也许蠕行所有的国家应该同样地聚在一起朋友并且也许解救我们的世界。

Methods Polymerase chain reaction was used to detect HPV 16 DNA and point mutation at condon 12 of Ha-ras oncogene.

应用多聚酶链反应技术扩增HPV16 DNA和Ha-ras癌基因相关片段，分别采用2％琼脂糖凝胶电泳和限制性片段长度多态性分析，检测口腔癌中的HPV16 DNA和Ha-ras癌基因第12位密码子的点突变。

The diblock copolymer of styrene and chloromethyl-4-vinyl-benzene was obtained by means of reverse addition fragmentation chain transfer reaction living free radical polymerization. The chloromethyl groups in PS-bPCVB were transformed into azidomethyl groups, and then into 1,2,3-triazol groups via click chemistry. The diblobk copolymer containing 1,2,3-triazol groups was thus obtained. The results from NMR spectra suggested a complete transformation from chloromethyl groups to triazol groups.

通过RAFT活自由基聚合方法制备聚（苯乙烯-b-对氯亚甲基苯乙烯）二嵌段共聚物，其中的氯亚甲基侧基经叠氮化反应后与丙炔醇进行点击反应，最终获得了含有1，2，3-三氮唑官能团的聚苯乙烯二嵌段共聚物，核磁共振谱表征结果证明，PS-b-PCVB中的氯亚甲基完全转变成了1，2，3-三氮唑基团。

The diblock copolymer of styrene and chloromethyl-4-vinyl-benzene was obtained by means of reverse addition fragmentation chain transfer reaction living free radical polymerization. The chloromethyl groups in PS-b-PCVB were transformed into azidomethyl groups, and then into 1,2,3-triazol groups via click chemistry. The diblobk copolymer containing 1,2,3-triazol groups was thus obtained. The results from NMR spectra suggested a complete transformation from chloromethyl groups to triazol groups.

通过可逆加成－断裂链转移聚合活性自由基聚合方法制备了聚（苯乙烯－b-对氯亚甲基苯乙烯）二嵌段共聚物，其中的氯亚甲基侧基经叠氮化反应后与丙炔醇进行点击反应，最终得到了含有1，2，3-三氮唑官能团的聚苯乙烯二嵌段共聚物，核磁共振谱表征结果证明，PS-b-PCVB中的氯亚甲基完全转变成了1，2，3-三氮唑基团。

Thus it is suitable to simulate the particle longitudinal motions in electrostatic accelerators in which bunching systems are incorporated.

程序采用大量粒子模拟束团在纵向相空间内的运动，并用Monte-Carlo方法随机产生相空间内各代表点的初始条件。因此，较为适合模拟粒子在配有聚束器件的静电加速器中的纵向运动。

This new strategy gets the potential support vectors and removes the non-boundary outlier data immixed in the other class by using fuzzy clustering. That can greatly reduce the scale of the training sample set and improve the generalization performance by effectively avoiding over-learning caused by outlier data, and finally speed up learning rate without reducing the classification accuracy.

该策略运用模糊聚类方法快速的提取出潜在支持向量并去除类内非边界孤立点，在减小训练样本集规模的同时，能够有效地避免孤立点数据所造成的过学习现象，提高了SVM的泛化性能，在保证不降低分类精度的前提下提高训练速度。

Compared to nearest neighbor , it shows better effects of the correct association rate and association time.

它以一个目标为中心的近似聚为构造关联事件的起点，并在计算中将DC 和AC 结合得到的一种全邻的点迹2航迹关联算法，在杂波下目标密集、航迹复杂的数据融合系统中进行实验，对关联正确率、关联时耗等与最近邻法进行了比较，效果较好。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。