再制备

Methods:The model of focal cerebral ischemia was made by blockingthe middle cerebral artery with monofilament in rats.

采用改良线栓法制备大鼠大脑中动脉缺血再灌注模型。

Methods The global cerebral ischemia/reperfusion injury model was established by the four-vessel occlusion (4VO) method, and then the model animals sere given high-middle-and low-dose muscone. Meanwhile, sham-operation group, model group, and positive control group were also set up. The rats neuroethology behavior, and the contents of superoxide dismutase, malondialdehyde and excitatory amino acid in is-chemic brain tissue were examined.

取Wistar大鼠，采用四血管阻断(4VO)法制备全脑缺血再灌流损伤模型，将成模大鼠随机分为麝香酮高、中、低剂量组(3.6， 1.8， 0.9 mg/kg)，并设假手术组，模型组，阳性对照药尼莫地平组(10.8 mg/kg)，共6组，每组12只对大鼠神经行为学，缺血区脑组织超氧化物歧化酶，丙二醛含量，脑组织兴奋性氨基酸含量进行检测。

The purified PIR was obtained from freezing and drying.

再采用液相复乳法制备直径50～70 mm的PLGA/RIP微球。

In order to study the expression and functional characteristics of dehydrin gene during different growth, and make the polycolonal antibody, using wheat plumelet under the water deficit condition as experiment material, and its total RNA was extracted. The target dehydrin gene through RT-PCR was got, connect to the cloning vector PUCM-T, recombination expression plasmid PET-32a-wzy1-1 was constructed according to recombination of cloned vector PUCM-T-WZY1-1 of wheat dehydrin gene in this experiment.

为研究小麦在不同时期脱水素基因的表达情况和生物学功能及抗体制备，以小麦幼芽为材料，经干旱胁迫处理后，提取总RNA，通过RT-PCR得到小麦类脱水素基因片段(WZY1-1)，再连接至克隆载体PUCM-T，并成功构建重组表达质粒PET-32a-wzy1-1，将阳性重组质粒转化于受体菌BL21(DE3)感受态细胞中，经IPTG诱导表达，进行表达产物的聚丙烯酰胺凝胶电泳检测。

In this study, Chitosan-Poly complex nanoparticles were prepared by template polymerization of acrylic acid in the chitosan solution. The preparation and characterization of CS-PAA nanoparticles including the yields of the nanoparticles, FT-IR spectrum analysis, dynamic light scattering, zeta potential, and morphology of nanoparticles were concentrated in this study. The effects of temperature, weight ratio of CS and PAA, and pH value on the physicochemical properties of nanoparticles were studied.

本研究中，我们以模板聚合法在几丁聚醣（Chitosan， CS）溶液中聚合丙烯酸（Acrylicacid， AA）以制备几丁聚醣－聚丙烯酸复合奈米颗粒并计算其产率，再以傅利叶红外线光谱仪、动态光散射粒径分析仪（Dynamic light scattering， DLS）、表面电位测定仪及穿透式电子显微镜等仪器分析CS－PAA 复合奈米颗粒之性质，以探讨聚合时温度、聚合反应时间、CS 与AA 之重量比，以及介质pH 值对CS－PAA 复合奈米颗粒结构的影响。

The precursive Fe3O4 films were sulfurized using constant current electrodepositing and oxidation treating, and Fe3O4 films was transformed into FeS2 thin films after heat sulfur annealing of 400℃ at different sulfurizing pressures.

采用恒流电沉积及氧化处理制备Fe3O4先驱体薄膜，再通过400℃下的热硫化退火，使Fe3O4先驱体薄膜在不同硫压下转变成为多晶FeS2薄膜。

Some cellulose was used as reductant to reduce pyrolusite of low grade, and manganese sulfate was obtained by leaching the reaction product with sulphuric acid.

用纤维素作还原剂还原低含量软锰矿，再用硫酸浸取制备了硫酸锰。

The bioceramic coating was made by Lasser remelt pretreating a layer of mixed powder CaHPO 4·2H 2O CaCO 3 Y 2O 3 on the TC 4 substrate.

在激光表面重溶预处理的TC4合金基材上预置涂敷CaHPO42H2O－CaCO3－Y2O3混合粉末，再经激光熔覆处理制备了生物陶瓷复合涂层。

Techniques for the reutilization of waste plastic s were introduced.

介绍了废旧塑料再利用技术，探讨了PVC木塑复合材料的配方、工艺、制备及木粉的处理方法。

The key steps involved Friedel-Crafts reaction of o-cresol and the Wittig reaction for construction the skeleton of amine moiety,at the same time, using the synthesis of E,(7S)-7-methoxytetradec-4-enoic acid in chapter 2,and Johnson-Clainsen rearrangement as a key step for construction the fatty acid part,the corresponding acid was prepared in 23%and 50%overall yield,respectively.

随后将手性不饱和脂肪酸和氨片段进行酰胺化反应构筑了malyngamide M的基本骨架，再将Z-烯氯转化为E-烯氯完成了目标分子的全合成，高立体选择性地构筑了末端烯氯结构，为制备其它含有类似烯氯结构的malyngamides探索出行之有效的合成路线。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐