预处理

Taking the ampelopsis as the raw material,under the condition that ethanol soaks to prepare the processing,taking water as the associated extract dihydromyrictin.

以干藤茶叶为原料，采用乙醇浸泡进行预处理，以水为溶剂提取二氢杨梅素，考察了乙醇预处理时间、茶叶与乙醇的料液比、加热时间等因素对提取率的影响，通过单因素分析和正交试验设计，确定了最佳提取工艺条件。

So far,the changes of barley anthers inphysiology and biochemistry during the mannitol pretreatmental period and theeffects of mannitol pretreatment on androgenesis and anther culture in barleyhave not been systematically studied.

到目前为止，还没有人系统地研究甘露醇预处理过程中大麦花药所发生的生理生化方面的变化，以及预处理后对大麦雄核发育和培养效果的影响。

The present work was de-signed to study systematically the changes of anther and pollen during themannitol pretreatment period on physiology and biochemistry;and then the ef-fects of mannnitol pretreatment on androgenesis and anther culture were stu-died.The donor plants used in this experiment grow in the field.

所以本文从以上几个问题出发，以大田生长的植株作为供试材料，首次系统地研究了甘露醇预处理过程中大麦花药花粉在生理生化方面所发生的变化；以及甘露醇预处理后对大麦雄核发育和培养效果的影响。

The results were as follows. Pollen pretreated with 0-4 ℃ low temperature could abort the inducing stage that androgenesis needed, but most pretreated pollen (93.6%) still kept vigor when abortion occurred, and the frequency of callus differentiation reached 1.33%. On the contrary, most unpretreated pollen degenerated and died.

结果表明：0~4℃的低温预处理花药1d，花粉可以完成其进行雄核发育所需要的诱导过程，而且绝大部分花粉(93.6%)仍然保持存活，花药分化率达到1.33%；而未经预处理的花药在诱导过程完成时，大多数退化死亡。

The effect of O2 plasma pretreatment on surface free energy of PS was investigated by means of contact angle and surface free energy measurements.

通过接触角及表面自由能分析，探讨了O2等离子体预处理条件对PS表面自由能的影响，确定了预处理的最佳条件。

In this paper, we detailed analyze the anisotropic transform and give an improved anisotropic transform.

我们对三维模型各向同性预处理进行了分析，给出了改进的各向同性预处理。

The layout of body measurement paths and apartness of point cloud data are attempted for new study.

探讨了扫描线和散乱点云数据的预处理技术，对点云数据自动滤波和交互滤波技术，随机采样和网格化数据精简进行了研究，总结出具有实效性的预处理方法。

The result showed that high quality genomic DNA could be got from both fresh and frozen tissues except scale by common method. Tissue fixed with 70% alcohol and 10% formaldehyde could also extract high quality genomic DNA after effective pretreatment. Noteworthy high quality DNA could be got from scale with fresh and some other fixation methods.

结果表明，除鳞片外，新鲜组织、-20℃冰冻组织以常规方法可提取出较高质量的DNA；保存于70%酒精或10%甲醛溶液中的组织，经预处理，亦可得高质量DNA；新鲜、冰冻、70%酒精或短时间10%甲醛固定的鳞片经适当预处理也可提取出较高质量的DNA。

Methods and Materials Experimental Design Our general experimental design was to first evaluate the effects of antibiotic pretreatment by conducting metal toxicity tests with brine shrimp cysts that had and had not been pretreated with antibiotics.

材料与方法试验设计我们一般实验设计是第一次评价的影响，抗生素进行预处理金属毒性试验与卤虫囊肿有和没有预处理抗生素。

It is postulated that IP induces the release of endogenous protective molecules that interact with cognate receptors to activate PLC through mediation of the chincough virus sensitive proteins. PLC hydrolyzes membrane phospholipid and produces diacylglyccerol,that,by working together with calcium hydronium,translocates PKC from cytoplasm to cell membrane and activates PKC.

推测缺血预处理细胞保护作用机制是：缺血预处理引起内源性保护物质释放，作用于细胞膜上的相应受体，通过百日咳病毒敏感性G蛋白的介导而激活磷脂酶，磷脂酶水解膜磷脂，产生二酰基甘油(diacylglyccerol，DAG)，DAG和Ca2+协同作用于PKC，使其从胞浆转位到细胞膜并且被活化，PKC在膜上使底物蛋白磷酸化，引发一系列相关信号转导通路的激活，调控保护性基因的表达，从而提高细胞对缺血再灌注损伤的耐受性。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。