活性的

In order to know the effects of mulch-drip irrigation on soil enzyme activities of saline-sodic soil with shallow water table, activities of alkaline phosphatase, urease, and invertase around the dripper, within 30 cm in horizontal direction and 40 cm in vertical direction from the dripper during the reclamation process, were investigated. Changes and distribution of soil enzyme activities, also their relationships with principal soil environment factors were studied.

为了解地下水浅埋区重度盐碱地覆膜滴灌对土壤酶活性的影响，测定了重度盐碱地在滴灌利用过程中距离滴头不同水平位置（0～30 cm）和垂直深度（0～40 cm）的土壤碱性磷酸酶、脲酶和蔗糖酶活性，并对土壤酶活性的变化、空间分布特征及与土壤环境因子之间的相关关系进行分析。

In order to understand the mechanism of the detoxication of the fluoride poisoned silkworm by naphthylamine compounds such as CRL, the effect of CRL on the activity of the glutathione peroxidase in the hemolymph of fluoride poisoned silkworm larvae was studied.

摘 要：为了解萘胺类化合物CRL缓解家蚕氟中毒的机理，研究了CRL对氟中毒家蚕幼虫血淋巴中谷胱甘肽过氧化物酶活性的影响。正常的家蚕5龄幼虫血淋巴GSH-Px在龄的中期活性较强，龄初和龄末活性较弱。

The main results were as follows: 1 The activities of xylanase and pectate lylase were nearly undetectable at the beginning of the storage, but increased with the development of the process and decreased after the climacteric stage.

具体表现为：果胶裂解酶和木聚糖酶的活性在贮藏初期几乎测不出，随着果实的成熟软化其活性不断增加、然后又降低，其酶最高活性的出现时间与呼吸高峰的出现相一致。

This study also showed that the effect of"kidney-tonifying"traditional Chinese medicines on strengthening bone may be related to their direct effect on osteoblast, and that the flavonoid compounds in Psoralea corylifolia L. might have activity of anti-osteoporosis.

大量中药及植物促进成骨样细胞骨形成活性筛选结果表明，补肾中药的"壮骨"作用可能与其对成骨细胞活性的促进作用有关，中药补骨脂中的黄酮成分可能具有防治骨质疏松的活性。

Forβ-l,3-glucanase,its activity increased to peak level after 2 to 5 days and was 2.02 and 1.34 folds of check,then decreased rapidly and resumed to normal level after 5 and 9 days.Generally Psoralea corylifolia L.extract may enhance the activities of chitinase andβ-l,3-glucanase in cucumber leaves,then induce the enhancement of activities of defensive enzymes.

从所测定的几种酶活性变化时间来看，补骨脂提取物处理黄瓜幼苗后，首先，使黄瓜体内的几丁质酶和β-1，3-葡聚糖酶等病程相关蛋白活性升高，然后在两者的作用下，诱导了黄瓜体内过氧化物酶、多酚氧化酶、苯丙氨酸解氨酶等一些防御酶活性的提高。

College of Life Science,Hebei University, Baoding 071002,ChinaAbstract: The activesite of immobilized penicillin G acylase can be determined according to the precipitantproduced in the reaction between phenylacetic acid and capture reagent. Moreover, thelocalization of the immobilized penicillin G with different activity is done as well.

固定化青霉素G酰化酶活性的X射线微分析—活性定位姚子华黄永章仇满德王书香张贺迎武金霞潘延云周艳芬摘要：利用苯乙酸与捕捉剂反应天生的沉淀，确定固定化青霉素G酰化酶的催化活性部位。

In order to further improve the catalytic activity and investigate the influence of catalyst acidic properties on the catalytic activity, acid-treated montmorillonite and molecular sieve Hβwere modified by loading Lewis acid and protonic acid treatment.

为了进一步提高催化剂的催化活性和考察催化剂酸性质对催化剂活性的影响，对酸化蒙脱土和Hβ分子筛进行了改性处理并考察了它们改性后的催化活性。

The current antifungal agents used in clinics usually have severe side-effects, it is necessary to seek for new antifungal agents with known or new mechanisms. China has abundant resources in traditional Chinese medicine, therefore exploition of new antifungal agents therefrom is a feasible way.We have screened antifungal activities of 14 ethanolic extracts from traditional Chinese medicines and 21 natural products by using Saccharomyces cerevisiae GL7 and Prototheca wickerhamii as the model microoranganisms. Among the TCMs tested, Cortex Phellodendri, Flos Caryophylli, Fructus Mume, Rhizoma Coptidis and Radix Sophorae tonkinensis showed high antifungal activity. This study layed certain foundation for the development of new antifungal agents.

为了开发中药资源，从传统中药中寻找有抗真菌活性的天然药物并阐明其作用机理以利于临床应用，论文对14种生药乙醇提取物及21种生药化学成分利用啤酒酵母突变型GL7（Saccharomyces cerevisiae GL7）和威克海姆原藻作为模式菌种进行了抗真菌活性筛选，其中黄柏、丁香、乌梅、黄连和山豆根等有很好的抑菌活性，为进一步研究开发成新的抗真菌药奠定了基础。

And under our experiment condition complexes 1, 4 have shown non-chemical nucleases.

并发现配合物2，3，5，6均具有光化学核酸酶活性，在光照条件下能促使pBR 322 DNA单股断裂，还研究了它们的光核酸酶活性的作用机理；而在我们的实验条件下，配合物1和4均不具备光化学核酸酶活性。

In terms of the yield of organic distillate and the formation rate of coke, the results show that reused catalytic activity changes moderately during the first 3 times of regeneration, while the reused catalyst is gradually deactivated after repeated regenerations more than 3 times.

此外还对催化剂HZSM-5采用在空气中600℃焙烧的方式再生以及再生次数对产物量和催化活性的影响进行了研究，结果表明：再生前三次，催化剂活性变化不大，随着再生次数的增加，催化剂活性受到影响程度也增大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。