查询词典 modification

In the present study, tungsten oxide nanomaterials were synthesized by a modified plasma arc gas condensation technique. The effects of the plasma currents (70~90 A), chamber pressures (200~600 torr), production time（3~12 min）, oxygen partial pressure Ar:O2（1~6:1）and plasma including the hydrogen（0~10 %）on the preparation of tungsten oxide nanostructures were investigated. Pre-treatment on the tungsten oxide nanorods for surface modification was investigated by atmospherical plasma jet. The optical, filed emission, and gas sensing characteristics of tungsten oxide nanopowders were also examined.

本研究系利用电浆电弧气凝合成法来制备氧化钨奈米材料，分别探讨不同腔体压力（200~600 torr）、电浆电流（70~90 A）、制备时间（3~12 min）、氧分压Ar：O2（1~6：1）、电浆气含氢量（0~10 %）对於产物的形貌、相态影响，并使用常压低温电浆设备对氧化钨奈米棒进行表面处理，且针对氧化钨奈米材料的光学、场发射以及使用自行组装气体感测量测设备量测其气体感测特性。

The BMP15 protein played a certain role in all the stages of follicular development and had a relationship with the luteal dissolution mechanism; In the atretic follicle, the low expression of BMP15 protein maybe caused by inhibition from the other factors which lead to connected modification of follicular atresia.

结论］BMP15参与了兔卵泡发育全过程，并且与黄体溶解机制有关；而在闭锁卵泡中，其低水平的表达可能是由其他因子所抑制，进而共同调节了卵泡的闭锁。

A chromophore is formed autocatalytically on the nascent apoprotein's backbone via posttranslational modification.

该多肽通过翻译后加工形成生色基团，产生稳定的荧光，而且这种荧光很容易被检测。

This is a very practical device for aversive behavior modification.

这是一种为达到令人憎恶的行为修正而采用的一种非常实际的装置。

This uses electro-shock and behavior modification with an aversive conditioning of the old and a reward conditioning of the desired personality.

这用电激和行为修正，伴随着一种令人厌恶的古老的训练和渴望人格的有奖励的训练方法。

Study on the Modification of Poly (3-hydroxyalkanoate) The aim of this dissertation is to modify bacterially produced poly (3-hydroxybutyrate) and its copolymer with 3-hydroxyvalerate .

本论文目的是改性细菌合成的聚（3-羟基丁酸酯）及其共聚物，采用交联或共混的方法，改变其聚集态结构或超分子结构，从而改善其力学性能。

A simple and inexpensive BAW DNA biosensor has been proposed by immobilizing DNA on an Ag-plated surface. The surface modification and the process of dissociation and hybridization of DNA have also been studied.

成功地将DNA修饰于压电晶体Ag晶片表面，构成DNA生物传感器，并对其表面修饰过程和DNA杂交过程进行了分析研究。

Bromination occur s selectively on the PMS methyl group, providing a reactive benzylic bromine functionality which is the key to Exxpro specialty elastomers′ vulcanization and modification versatility.

溴化反应选择性地发生在PMS的甲基基团上，提供活性苄基溴官能团，这也是Exxpro特种弹性体硫化和各种改性的关键。

Bromination occurs selectively on the PMS methyl group, providing a reactive benzylic bromine functionality which is the key to Exxpro specialty elastomers′ vulcanization and modification versatility.

溴化反应选择性地发生在PMS的甲基基团上，提供活性苄基溴官能团，这也是Exxpro特种弹性体硫化和各种改性的关键。

Five types of compounds were synthesized via modification of the leading compounds, Mannich bases of cyclopentanones. Among the target compounds, one type was aromatic amine derivatives of a leading compound, three were Mannich bases of a - benzylidene cyclopentanone, the fifth was a Mannich base of a - benzyl cyclopentanone.

以具有抗炎活性的环戊酮Mannich碱为先导化合物进行结构改造，设计合成了一类已知化合物的芳胺Mannich碱衍生物，三类α-苯亚甲基环戊酮Mannich碱类化合物，一类α-苄基环戊酮Mannich碱类化合物。22个目标化合物的结构经核磁共振氢谱、红外光谱和质谱检测确证。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。