查询词典 activity coefficient

Combining the performance evaluation (activity, selectivity and stability) and the characterization of the catalysts (XRD, TPD, FTIR and the pore structure measure), it can be concluded that :(1)The activity of modified β is higher than MCM-22, but the selectivity of ethylbenzene is lower about 3% than that of MCM-22;(2)The mounts of diethylbenzene and the other by-products are higher 1.7 times and 1.5 times than these of MCM-22 respectively;(3)The catalytic performance of zeolite mixture is nearly equal to modified β, but the selectivity of ethylbenzene is higher about 0.5% than that of modified β;(4)The catalytic activity of zeolite is mainly correlated with the number of acid sites, strength and distribution, and the distribution of products is determined by the binding energy of ethylbenzene and the pore structure, while the stability of catalyst is affected by the amount of poly-ring aromatic alkylate and the pore structure.

以性能评价和特性表征（XRD、TPD、FTIR和孔结构测定）相结合的方式，对上述三种催化剂性能比较的结果表明：（1）改性的活性明显高于MCM-22，但乙苯选择性却低于MCM-22绝对差约3%；（2）改性(上二乙苯和其他副产物的生成量分别约为MCM-22上对应值的1.7和1.5倍左右；（3）混合型催化剂的性能与改性相仿，但乙苯选择性提高0.5%左右；（4）对乙苯合成，沸石催化剂的活性主要取决于其B酸中心数、酸强度及酸分布，产物分布则取决于催化剂表面的乙苯脱附能垒值和孔道结构，而稠环芳烃的生成量和催化剂孔道结构是影响催化剂稳定性的主要因素。

Result］ The results show that superoxide dismutase activity of Alstroemeria spp. increases firstly and then decreases; catalase activity gradually increases all the time; peroxidase activity decreases firstly and then increases; the content of malondialdehyde increases firstly and then decreases; proline content increased firstly and then decreased.

结果］各处理切花的超氧化物歧化酶活性总体呈先升后降的趋势；过氧化氢酶活性呈上升趋势；过氧化物酶活性先降后升；丙二醛含量先升后降再升；脯氨酸含量先升后降。

Objective: To investigate the association between the prothrombotic risk factors such as the level of lipoprotein, the activity of protein S, the activity of protein C as well as the activity of antithrombin Ⅲ and unexplained recurrent spontaneous abortion.

目的：探讨脂蛋白水平及某些抗凝因子的活性变化与原因不明的反复自然流产的相关性。

Say finally, do an activity not to ask this activity dazzles more, much avant-courier, have originality more, the most crucial it is to want suit actual, consider user demand, it is an user to consider only, satisfy their habit and requirement, ability reachs the phase of bilateral win-win, just be good activity.

最后说一下，做活动不要求这个活动多炫，多前卫，多有创意，最要害是要切合实际，考虑用户需求，只有为用户考虑，满足他们的习惯和需求，才能达到双方共赢的局面，才是好活动。

Quantitative structure-activity relationship studies showed that when the test grass was rape, their herbicidal activity was mainly related with substituent molar refractivity; when the test grass was barnyard grass, their herbicidal activity was mainly related with the electronic parameters of the substituents at the para-position of benzene ring.

定量的结构与活性关系研究表明，当作用对象为油菜时，化合物的活性可能主要与取代基R的摩尔分子折射常数有关；当作用对象为稗草时，化合物的活性可能主要与取代基R的电性参数有关。1-位为氢时，有利于对油菜生长的抑制；1-位为甲基时，有利于对稗草生长的抑制。

In order to make clamping and unclamping fast, make the traditional whorl into hydraulic transmission, the fixation of the activity pincers depend on embracing activity pincers body firmly through frictional force comes by the brake handle driving steel band brake lump. That realizes the fast movement of the activity pincers body, while clamped strength guaranteed by clamping the spring.

为了实现快速夹紧与快速松开，将传统的螺纹改成液压传动，活动钳身的固定通过刹车手柄来带动钢带刹车块通过摩擦力来抱死活动钳身，从而实现活动钳身的快速移动，而夹紧力则由夹紧弹簧来保证。

The profile of liver CYP450 induction by DEX in male rat After 4 daily i.p. administering of 0,25, 50 and lOOmg/kg/d DEX in male Wistar rat, it was determined the total CYP450 content, the mRNA and protein expression levels of CYP3A1, CYP3A2 and CYP2B1/2, and the ERD (CYP3A catalytic activity), PROD (CYP2B catalytic activity) and BROD (total CYP450 catalytic activity) in livers.

DEX对雄性大鼠肝脏CYP450的诱导效应雄性Wistar大鼠腹注0、25、50和100mg DEX/kg/d诱导处理4天后，测定大鼠肝脏总CYP450含量，CYP3A1、CYP3A2和CYP2B1/2的mRNA及蛋白表达水平，肝脏红酶素脱甲基酶(ERD，CYP3A活性)，苄氧基试卤灵脱乙基酶(PROD，CYP2B活性)，苯氧基试卤灵脱乙基酶(BROD，总CYP450活性)，结果表明，CYP450含量、ERD、PROD和BROD在DEX多次诱导后都有升高，CYP3A1 mRNA表达水平、蛋白含量和酶活性有明显的升高，剂量效应关系明显；CYP3A2蛋白也有明显升高，而其mRNA表达水平却没有变化，提示CYP3A1和CYP3A2的诱导机制可能不同。

The profile of liver CYP450 induction by DEX in male ratAfter 4 daily i.p. administering of 0,25, 50 and lOOmg/kg/d DEX in male Wistar rat, it was determined the total CYP450 content, the mRNA and protein expression levels of CYP3A1, CYP3A2 and CYP2B1/2, and the ERD (CYP3A catalytic activity), PROD (CYP2B catalytic activity) and BROD (total CYP450 catalytic activity) in livers.

DEX对雄性大鼠肝脏CYP450的诱导效应雄性Wistar大鼠腹注0、25、50和100mg DEX/kg/d诱导处理4天后，测定大鼠肝脏总CYP450含量，CYP3A1、CYP3A2和CYP2B1/2的mRNA及蛋白表达水平，肝脏红酶素脱甲基酶(ERD，CYP3A活性)，苄氧基试卤灵脱乙基酶(PROD，CYP2B活性)，苯氧基试卤灵脱乙基酶(BROD，总CYP450活性)，结果表明，CYP450含量、ERD、PROD和BROD在DEX多次诱导后都有升高，CYP3A1 mRNA表达水平、蛋白含量和酶活性有明显的升高，剂量效应关系明显；CYP3A2蛋白也有明显升高，而其mRNA表达水平却没有变化，提示CYP3A1和CYP3A2的诱导机制可能不同。

After 24 h reperfusion, these values were 403, 155 and 293 for PO2/FiO2; 3.7, 11.0 and 6.7 for lung injury pathology score; 3.7, 6.4 and 5.2 for wet-to-dry ratio; 2,3, 7.2, 5.0 for MPO activity; 0.7, 1.5, 1.2 for MDA activity in lung tissue, 2.5, 5.5, 4.6 for MDA in serum, 29.3, 43.1, 32.1 for CINC activity.

再灌注24 h，各组PO2/FiO2分别为403， 155，293；肺损伤病理评分为3.7， 11.0， 6.7；W/D分别为3.7， 6.4， 5.2；MPO活性分别为2.3， 7.2， 5.0 U·g-1；MDA肺组织中活性为0.7， 1.5， 1.2 nmol·mg pro-1；血清中活性为2.5， 5.5， 4.6 nmol·mL-1；CINC活性分别为29.3， 43.1， 32.1 pg·mg pro-1。

Results:The values were 388, 179 and 265 for PO2/FiO2; 3.2, 6.5 and 5.0 for lung injury pathology score; 3.5, 5.6 and 5.2 for wet-to-dry ratio; 2.3, 5.2, 4.4 for MPO activity, 0.8, 2.6, 1.6 for MDA activity in lung tissue, 2.3, 8.1, 5.2 for MDA in serum, 26.4, 114.4, 19.9 for CINC activity (Sham, control, and SS groups, respectively) at 2 h reperfusion.

结果：再灌注2 h，假手术组、对照组、西维来司钠组，PO2/FiO2 分别为388， 179， 265；肺损伤病理评分为3.2， 6.5， 5.0；W/D分别为3.5， 5.6， 5.2；MPO活性分别为2.3， 5.2， 4.4 U·g-1；MDA肺组织中活性为0.8， 2.6 1.6，血清中活性为2.3， 8.1， 5.2 nmol·mL-1；CINC活性分别为26.4， 114.4， 19.9 pg·mg pro-1。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了