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activity site
相关语句
  活性中心
    The activity site of Lox-3 may be-SH in rice embryo.
    稻胚Lox - 3活性中心可能为 -SH。
短句来源
    Hemoglobin (Hb), which was adopted as the biomimetic enzyme of horseradish peroxidase (HRP) for their similar structure in activity site, was used here to study in details its catalytic behavior both in the aqueous media and AOT reversed micro-emulsions.
    本文采用具有相同活性中心的血红蛋白(Hb)模拟辣根过氧化物酶(HRP)的催化行为,系统研究了血红蛋白在水溶液、反相微乳液中的过氧化物酶活性。
短句来源
  活性位置
    The electronic structure of 5,14Dihydro6,8,15,17tetramethydibenzotetraazaannulene and metal complexes were calculated by use of quantum chemistry program package,MOAN and Gaussian 94.As a result,the activity site and reactivity were discussed.
    本文用量子化学半经验方法和从头算研究二苯并四氮杂[14]轮烯离子及其金属配合物,讨论了轮烯配合物的活性位置
短句来源
  “activity site”译为未确定词的双语例句
    Calculated expectation value of Ti O bond length in some activity site cluster models of TS -1 was 1 80A, consistented well with experimental results. It was also found that 960 cm -1 in IR spectrum is not suitable to be used as the conclusive evidence of framework titanium.
    量子力学从头计算方法对多个TS-1分子筛碎片模型的计算结果表明钛在TS-1分子筛骨架中以四面体结构存在 ,钛硅分子筛在 96 0cm-1附近的吸收不应被看作是钛处于分子筛骨架上的依据
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  activity site
RM1P was antigenic and reacted with polyclonal sera and 5 monoclonal antibodies (MAbs) spanning 4 epitopes including the membrane binding site and the transcription inhibition activity site.
      
These studies allow a tentative assignment of the cofactor activity site to the residues 177-322 of the 549 amino acid long chain of C4b-binding protein but indicated that residues in the region 332-395 are important in the binding activity.
      
The two non-responding experiments were conducted on a wall-drained, low-activity site (ARA means ranging 17-68 n moles ethylene core-1 h-1), the responding experiment was conducted on a poorly drained, high-ARA site.
      
MB+ and BNAH were separately accommodated within the β-CD cavity and the cavity walls may protect the activity site of the reactants.
      
Multivariate analysis classified the sampling sites in four groups based on the metal content in vegetal leaves in agreement with traffic and human activity site.
      
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The properties of HZSM-35 modified by Cr、Co、Ni was studied with a pulsemicroreaction.The acidity and acid strength of CrHZSM-35 as determined by techniques of pulsed poisoning experiment(PPE)showed that the activity sites ofo-xylene isomerization were chiefly weak Br(?)nsted acid sites.The weak acid siteswere partly transferred into strong ones with increase in temperature.The activ-ity and equilibrium selectivity of CrHZSM-35 increased by 10% and 1% respect-ively.But the mechanism of o-xylene isomerization...

The properties of HZSM-35 modified by Cr、Co、Ni was studied with a pulsemicroreaction.The acidity and acid strength of CrHZSM-35 as determined by techniques of pulsed poisoning experiment(PPE)showed that the activity sites ofo-xylene isomerization were chiefly weak Br(?)nsted acid sites.The weak acid siteswere partly transferred into strong ones with increase in temperature.The activ-ity and equilibrium selectivity of CrHZSM-35 increased by 10% and 1% respect-ively.But the mechanism of o-xylene isomerization remained unchanged.Thecatalytic activity increased with increasing content of metal.

采用脉冲微反技术对改性 ZSM-35沸石(Cr、Co、Ni)的性能进行了考察。吡啶、2,6-二甲基吡啶对 CrHZSM-35的酸度和酸强度试验表明,邻二甲苯异构化的活性中心是 B 酸中心,但主要是弱 B 酸中心。随温度升高,部分弱酸中心转化为强酸中心。Cr~(3+)的加入使 CrHZSM-35的活性比HZSM-35的活性高约10%,平衡选择性高约1%。金属离子的含最增加,催化活性增加。但邻二甲苯的异构化反应机理不变。

Bidentate Mo complexesMo(mp) n - 3( n =0,mp=OC 6H 4S 2- ) and Mo(abt) n - 3(abt=NHC 6H 4S 2- ) as building blocks were carried out with ab initio calculation.The stabilities of the building blocks,the electronic structural characteristics and their relations with the properties of complexes were investigated.The results show that all the 4 structure units of Mo complexes are energetically stable and they may exist as building blocks,although their stabilities are different...

Bidentate Mo complexesMo(mp) n - 3( n =0,mp=OC 6H 4S 2- ) and Mo(abt) n - 3(abt=NHC 6H 4S 2- ) as building blocks were carried out with ab initio calculation.The stabilities of the building blocks,the electronic structural characteristics and their relations with the properties of complexes were investigated.The results show that all the 4 structure units of Mo complexes are energetically stable and they may exist as building blocks,although their stabilities are different each other.The Mo(Ⅵ) units are more stable than Mo(Ⅴ) units,and Mo(Ⅴ) units are more active and easier for assembly as building blocks.In particular,Mo(mp) - 3 possesses excellent assembly properties,and oxidation reduction activities.The activity site of the complex units may most probably be in the direction of C 3 symmetry axis.The calculation results agree with experimental regularties.

对Mo双齿配合物的结构单元Mo(mp)n-3(mp=OC6H4S2-)和Mo(abt)n-3(abt2-=NHC6H4S2-)进行从头计算研究,探讨这些配合物结构单元的稳定性、电子结构特征及其与性质的关系.结果表明:Mo的这4种结构单元在能量上都是稳定的,因而都能作为结构单元而存在.但其稳定性彼此不同,Mo(Ⅳ)的结构单元比较稳定,而Mo(Ⅴ)的结构单元则比较活泼,易于组装.特别是Mo(mp)-3具有独特的组装性质和氧化还原活性,其活性部位最大可能是在对称轴C3的方向上.计算结果与实验规律相符

Zirconium is adsorbed and separated by high adsorption activity silica gel in simulated HLLW. The selective adsorption mechanism is analyzed. The results show that adsorption selection of silica gel for zirconium is strong because zirconium has higher positive charge. The static adsorption capacity of zirconium is 0.344 mmol/g; the desorption rate of zirconium on silica gel by 0.2 mol/L H 2C 2O 4 is more than 99 %; The numbers of hydroxy groups (-OH) on the surface of silica gels made in laboratory...

Zirconium is adsorbed and separated by high adsorption activity silica gel in simulated HLLW. The selective adsorption mechanism is analyzed. The results show that adsorption selection of silica gel for zirconium is strong because zirconium has higher positive charge. The static adsorption capacity of zirconium is 0.344 mmol/g; the desorption rate of zirconium on silica gel by 0.2 mol/L H 2C 2O 4 is more than 99 %; The numbers of hydroxy groups (-OH) on the surface of silica gels made in laboratory are 6.5/nm 2 which provide more adsorption activity sites.

用自制高吸附活性硅胶吸附分离模拟高放废液中的锆 ,并对吸附机理进行了分析。结果表明 :硅胶对锆的吸附选择性高 ,是因为介质中锆离子具有较高的正电荷 ;硅胶对锆的静态吸附容量可达 0 344mmol/g ;用 0 2mol/LH2 C2 O4洗脱硅胶上吸附的锆 ,洗脱率高于 99% ;硅胶单位表面上的羟基数为 6 5 /nm2 ,提供了较多的吸附活性位。

 
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