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Methods Wistar middle cerebral artery occlusion reperfusion rat model was established by thread ligation. The infarction focus formation was observed by TTC staining. AIF expression in ischemia region of cortex of parietal lobe and nerve cell apoptosis degree in sham operation group, MCAO 90 min and reperfusion 0, 3, 6, 12, 24, 48 and 72 h were observed by TUNEL and immunohistochemistry technique.

应用线栓法建立Wistar大鼠大脑中动脉阻塞再灌注模型，TTC染色观察梗死灶的形成，应用原位末端标记和免疫组化技术分别观察大鼠假手术组、MCAO 90 min再灌注0、3、6、12、24、48、72 h时额顶叶皮层缺血脑区AIF表达及神经细胞凋亡程度的变化。

Result Explants sterilized in 0.1% mercuric chloride for 8 min had the best effect. The optimum medium for callus was MS+6-BA 1.0-1.5 mg/L+NSA 0.5-1.0 mg/L.

结果］用浓度0.1%升汞溶液灭菌8 min，外植体污染率为54.55%，死亡率为3.64%；最佳诱导培养基为MS+6-BA 1.0-1.5 mg/L+NAA 0.5~1.0 mg/L。

At the time of aorta opening in routine cardiac surgeries with ECC,the oxygen flux was changed respectively. Two millilitres blood was taken at the time of pre-operation（T0）,30 min after aorta opening（T1）,6 h (T2),24 h (T3) and 48 h after operation (T4) to measure the levels of serum cTnI were measured through ELISA method.

常规体外循环下进行手术，升主动脉开放时改变各组复灌氧流量，分别于术前（T0）、开放升主动脉后30 min（T1）、术后6 h（T2）、24 h（T3）、48 h（T4）各时间点抽取患者锁骨下静脉血2 ml，采用ELISA酶联免疫法测定血浆cTnI含量。

The developed motor prototype was tested and its load characteristics were measured. The maximum stall torque of 0.48 N·m is reached which is 1.7 times as high as the conventional onesided TWUSM, and its idle speed is 86 r/min.

最后利用自行研制的电机样机进行了实验，该样机的最大堵转力矩是0.48 N·m，是与其相近尺寸的传统单面齿超声电机的1.7倍，样机的最大空载速度是86 r/min。

Asiaticoside and madecassoside can be obtained in a 20 min runtime, and the purities of the products were detected by melting point, thin layer chromatography and HPLC method.

在20 min的运行时间内，积雪草甙和羟基积雪草甙与干扰成分得到很好的分离，产品纯度达到98%以上。

The results show that the plasticity zone and dynamically quiescent layer become fine equiaxed recrystallisation under the thermo-mechanical effect, the grains in the heat-affected zone grow up because of the effect of friction heat. When the rotation speed is 2 500 r/min and the welding time is 12 s, good joint is achieved, and the tensile shear strength of the joint reaches 9.24 kN. The tensile shear strength of spot increases with increasing tool rotation speed, with increasing welding time, the strength increases first, while then reduces. The microhardness of plasticity zone is high, but is slightly lower than that of the base metal, the minimum value of microhardness is in the heat affected zone. When the energy input of joint is high, the fracture type of spot is mode Ⅰ, and the tensile shear strength is high; on the contrary, when the energy input of joint is less the fracture type of spot is mode Ⅱ, and the strength is low.

结果表明：塑性区和动态静止层的晶粒在热和力作用下发生动态再结晶形成细小的等轴晶，热影响区的晶粒在摩擦热作用下长大变粗；搅拌头旋转速度为2 500 r/min，焊接时间为12 s时，可以获得力学性能较好的焊点，焊点的剪切强度达到9.24 kN；焊点的剪切强度随搅拌头旋转速度的增大而增大，随焊接时间的延长先增大后减小；塑性区的显微硬度较高，但略小于母材，接头显微硬度的最小值分布在热影响区；焊点热输入量较多时，接头为Ⅰ型断裂，焊点的剪切强度较高；焊点热输入量较少时，接头为Ⅱ型断裂，焊点的强度较低。

Results The optimum extraction process was adding 16 times amont of 60% alcohol, refluxing and extracting for 2 times, 65 min for each time.

结果 乙醇浓度60%，提取次数2次，溶剂用量16倍，每次提取时间65 min为最佳提取工艺。

The properties of pyrolysis and combustion for five different sewage sludges are studied by thermal gravimetric analysis at a heating rate of 10℃/min in the atomosphere of nitrogen and oxygen, respectively.

通过10℃/min时的热重分析，对五种不同性质污泥分别在氮气和氧气气氛下的热解和燃烧特性进行了研究。

The results show that in the normal speed range of 300~800 r/min,the torque and efficiency of the selfmade gear mechanism are close to those of the original one.

结果表明，在300~800 r/min的正常转速范围内，自制和原装齿轮机构的输出转矩及工作效率基本一致。

The geometries of [99mTc-DADS]+ complexes are optimized by semi -empirical quantum mechanics method ZINDO/1 and many physical and chemical desc riptors are obtained. Multiple regression between this drescriptors and urine up take of 120 min post injection is done and one equation is obtained.

用分子力学、半经验量子化学方法中的ZINDO/1方法对[99mTc-DADS]+系列配合物的结构进行了优化，做了电子结构计算，得到各种物理化学参数和电性参数，并将这些参数对膀胱120 min摄取值进行多元线性回归分析，得到了回归方程。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。