化学方法

The molecular weight of four kinds of UF resins by different process was determined by means of chemical analysis.

本文采用化学方法对四种工艺条件下合成的脲醛树脂进行相关分子含量测定，结合实验结果和合成工艺作了结构分析，并对比分析了衰减全反射红外光谱图。

Intimal areas were measured using morphometric analysis of perfusion-fixed vein graft specimens, and intimal thickness was calculated using circumferential measurements. The SMC proliferation was studied by the immunohistochemical detection of proliferating cell nuclear antigen. Expression of MMP-2、MMP-9 mRNA in vein grafts and unoperated control Vein grafts was detected by reverse transcription polymerase chain reaction. Substrate gel zymography was used to determine the proteolytic activity.

分别行HE染色、Verhoeff弹性纤维染色观察组织病理变化，计算机病理图象分析系统测量新生内膜厚度及面积，免疫组织化学方法检测静脉壁增殖细胞核抗原表达以观察细胞增殖情况，半定量逆转录-聚合酶链反应检测静脉壁基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶-9(MMP-9)mRNA的表达，明胶酶谱法检测MMP-2、MMP-9活性，比较各组之间的差别。

Methods Twenty-two adolescent SD female rats were selected. All rats were killed by dislocation of cervical vertebra, the eyeballs were in paraffin imbedding and made to a series of sections, using immunohistochemical method; ERα and ERβ distribution were investigated in uvea tissue of rats; and quantitied by Tanaka scores analytical method. The uteri of rats was used as positive control and PBS as negative control.

选择青春期SD雌性大鼠22只，采用颈椎脱臼处死大鼠，取眼球作常规石蜡包埋，连续切片， SP免疫组织化学方法显示ERα、ERβ在葡萄膜组织的表达；采用Tanaka记分法对ERα、ERβ进行定量分析，并设正常大鼠子宫作阳性对照；PBS代替一抗作阴性对照。

Macroporous tributyl amine aminating strongly basic anion exchange resin-a phase transfer catalyst with high catalytic activity for nucleophilic substitution,which was screened out via combinatorial chemistry method –was used to catalyze the nucleophilic substitution reactions for synthesis of benzyl acetate,benzyl propionate,benzyl butyrate and benzyl valerate.

用组合化学方法筛选出的对无外加碱条件下的亲核取代催化活性最高的聚合物季铵盐–三丁胺胺化强碱性阴离子交换树脂为相转移催化剂，催化合成了乙酸苄酯、丙酸苄酯、丁酸苄酯、戊酸苄酯等羧酸苄酯。

Methods 34 cases were invesigated under the light microscopic l e vel and were studied by immunohistochemical technics.

报告34例鼻腔圆形细胞恶性肿瘤，观察其病理组织学表现，用免疫组织化学方法标记肿瘤。

The properties of films and mechanism ofmetal deposition were investigatedby electrochemical technologies, such as CyclicVoltammeter, Linear Sweep Voltammeter, Open Circuit Potential～time, Amperometric i～t, A.C.

本论文在p型单晶硅[p-Si(100)]和多孔硅基底上，用电化学方法制备了Ag、Au、Pd、Pt、Ru、Ni和Co的纳米功能薄膜，探讨了该功能薄膜在电化学催化和微反应器等方面的应用前景。

Beam walking test was used to evaluate the improvement of motor function at weeks 1,2,3 and 4 after operation. The quantity of growth-associated protein 43(GAP-43) and synaptophysin around ischemia area were examined by immunohistochemical techniques.

术后1周，2周，3周，4周应用横木行走试验评定运动功能改善，免疫组织化学方法检测缺血周围区生长相关蛋白(GAP-43)、突触素SVP）表达的变化。

With a model of reversible middle cerebral artery occlusion in rats, the effects of Losartan on the water content of the brain, the contents of Evens blue and the expression of MMP9 were investigated after 24 hours of reperfusion following two hours of cerebral ischemia.

采用血管内栓线阻断法制备大鼠局灶性脑缺血再灌注损伤模型，于脑缺血2？h、再灌注24？h后测定脑组织含水量、伊文斯蓝含量，免疫组织化学方法测定MMP9表达。

With a model of reversible middle cerebral artery occlusion in rats, the effects of Losartan on the water content of brain, the contents of Evens blue and the expression of MMP-9 were investigated after 24 hours of reperfusion following two hours of cerebral ischemia.

采用血管内栓线阻断法制备大鼠局灶性脑缺血再灌注损伤模型，于脑缺血2h、再灌注24h后测定脑组织含水量、伊文斯蓝含量，免疫组织化学方法测定MMP9表达。

The staining level of NFκB and TGFβ1 of bulbar conjunctiva endepidermis in DM was higher than that in control group and was positive correlation. CONCLUSIONIn type 2 DM, the value of BUT and Schirmer decrease and the degree of cornea fluorescein staining increase is incident to the xeroma.

本研究采用免疫组织化学方法对2型糖尿病患者结膜上皮细胞中TGFβ1和NFκB的表达情况进行了检测，并比较分析了正常人群和2型糖尿病患者的眼表状态。

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。