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阳离子效应
相关语句
  cation effect
     When H_2O/SiO_2, RNH_3~+/Na~++RNH_3~+ and OH~-/SiO_2 are taken to represent the concentration of anion of silicate in the gel system, cation effect and the basieity of cation of silicate in the system respectively, an interesting relationship between these and types of X-ray diffraction pattern is presented.
     提出了以H_2O/SiO_2、RNH_3+/Na~++RNH_3+及OH/SiO_2分别表徵凝胶体系中硅酸盐阴离子的浓度、阳离子效应及体系中硅酸盐阴离子的硷度以及它们与图谱形状的关联。
短句来源
     Cation effect of quartz means the displacement of Si1+ by Al3+in the texture of quartz crystal.
     石英的阳离子效应指石英结构中Al~(3+)与Si~(4+)的置换作用.
短句来源
     CATION EFFECT OF THE GOLD-CARRYING QUARTZ AND ITS GUIDE IMPLICATION TO MINERALIZATION
     载金石英的阳离子效应及其对含矿性的指示意义
短句来源
  “阳离子效应”译为未确定词的双语例句
     THE EFFECTS OF CATIONS ON SYNTHESIS OF ZSM-5 ZEOLITES Ⅰ. EFFECTS OF ALKALI CATIONS IN NUCLEATION AND CRYSTALLIZATION OF(M, Na)ZSM-5 ZEOLITES
     (M,Na)ZSM-5沸石合成中的阳离子效应 Ⅰ.沸石成胶、成核及晶化过程的阳离子效应
短句来源
     THE EFFECTS OF CATIONS ON SYNTHESIS OF ZSM-5 ZEOLITE Ⅱ. BEHAVIOR OFN-BTUYLAMINE IN ZSM-5 ZEOLITE SYNTHESiS
     (M,Na)ZSM-5沸石合成中的阳离子效应 Ⅱ.正丁胺阳离子的行为
短句来源
     Rhizosphere Effects of Organic Material on Soil Exchangeable Cation in Coastal Saline Soil
     有机物料改良滨海盐土的根际交换性阳离子效应
短句来源
     In this paper,we simply studied the reaction mechanism of the transfer of the heptamolybdate into octamolybdate, invested the influence of different cations to the stability of polyoxoanions. We first report the synthesis and crystal structure of [(CH3)4N]4Mo8O26.
     在本文中,我们初步研究了由七聚体过渡到Mo_8的转换反应机理,考察了抗衡阳离子效应对多金属铝酸盐阴离子结构稳定性的影响,首次在水溶液中获得八铝酸四甲基钱盐,测定了它的晶体结构。
短句来源
     The effects of temperature, concentration, supersaturation and cation on the structures of solutions and the structure difference between lithium formate solution and lithium formate monohydrate crystal are analyzed.
     分析温度、浓度、过饱和度及阳离子效应对溶液结构的影响,并比较分析甲酸锂溶液结构和一水甲酸锂晶体结构的差异。
短句来源
  相似匹配句对
     RADIATION EFFECT OF CATIONIC INITIATORS
     阳离子引发剂的辐射效应
短句来源
     EFFECT OF POLAR GROUP IN CATION-CONDUCTING POLYMER
     高分子阳离子导体的极性基效应
短句来源
     Josephson's Effect
     约瑟夫森效应
短句来源
     Gravitational Lens Effect
     引力透镜效应
短句来源
     The cationic polyacrylamide applied to water-treating agent
     阳离子聚丙烯酰胺水处理剂
短句来源
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  cation effect
Manifestation of the mixed-cation effect in dilatometric properties of RO (R2O) · 2B2O3 borate glasses upon replacement of Na2O
      
Cation effect on thermal transition of ι-carrageenan: a photon transmission study
      
Cation effect on gel - sol transition of kappa carrageenan
      
This cation effect was abolished by 0.01% (v/v) Triton X-100 and it is suggested that it is the result of different permeabilities of membrane vesicles to the cations.
      
Accumulation into an as yet unknown cellular compartment may be required for the cation effect.
      
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  effect of metallic cations
The effect of metallic cations on the electrophoretic properties of a pretreatedHevea latex
      
Effect of metallic cations on the sorption of pesticides on soil
      


Effects of Mg~(2+) on relative quantum yield (RQY) of methyl viologen(MV) photoreduction in lettuce chloroplast (thylakoid) membranes were investigated by using polarographic technique with Clark-type electrode, when electron donors and light intensities were changed.

用Clark型氧电极的极谱技术研究了Mg~(2+)在不同光强和电子给体情况下对莴苣叶绿体(囊状体)膜的甲基紫精(MV)光还原的相对量子产量(RQY)的影响。试验结果证明:Mg~(2+)在限制光强下,促进天然的以水为电子给体的MV光还原的RQY约一倍左右;而在饱和光强下促进很少;若用BD—Vit.C代替水作为PSⅡ电子给体时,Mg~(2+)不论在限制光强或饱和光强下均明显地促进MV光还原的RQY,平均促进86~124%;若加DCIP—Vit.C作为PS Ⅰ电子给体时,Mg~(2+)在限制光强下对MV光还原的RQY稍有抑制作用(降低25%左右),但在饱和光强下作用减弱;若以TMPD—Vit.C代替DCIP作为PS Ⅰ电子给体,则Mg~(2+)在饱和光强下明显地促进MV光还原的RQY,约增加PS Ⅰ活性两倍,但光强减弱时,刺激作用也降低。仅用满溢理论解释上述阳离子效应是很困难的,我们认为,阳离子(主要是Mg~(2+))对叶绿体囊状体膜的作用是多途径的,它的主要作用可能是在分子水平上维持天线色素、作用中心以及某些电子载体在膜上的一定构型和保持它们之间紧密关系,以保证光能高效地吸收、转化和传递。反之,若人为...

用Clark型氧电极的极谱技术研究了Mg~(2+)在不同光强和电子给体情况下对莴苣叶绿体(囊状体)膜的甲基紫精(MV)光还原的相对量子产量(RQY)的影响。试验结果证明:Mg~(2+)在限制光强下,促进天然的以水为电子给体的MV光还原的RQY约一倍左右;而在饱和光强下促进很少;若用BD—Vit.C代替水作为PSⅡ电子给体时,Mg~(2+)不论在限制光强或饱和光强下均明显地促进MV光还原的RQY,平均促进86~124%;若加DCIP—Vit.C作为PS Ⅰ电子给体时,Mg~(2+)在限制光强下对MV光还原的RQY稍有抑制作用(降低25%左右),但在饱和光强下作用减弱;若以TMPD—Vit.C代替DCIP作为PS Ⅰ电子给体,则Mg~(2+)在饱和光强下明显地促进MV光还原的RQY,约增加PS Ⅰ活性两倍,但光强减弱时,刺激作用也降低。仅用满溢理论解释上述阳离子效应是很困难的,我们认为,阳离子(主要是Mg~(2+))对叶绿体囊状体膜的作用是多途径的,它的主要作用可能是在分子水平上维持天线色素、作用中心以及某些电子载体在膜上的一定构型和保持它们之间紧密关系,以保证光能高效地吸收、转化和传递。反之,若人为地掏去囊状体的阳离子,它的功能即出现严重的障碍。在掏去阳离子的囊状体膜中,从LHC到MV,可能至少有三个部位受到严重抑制或钝化,它们是:(1)抑制光能从LHC到PSⅡ作用中心的?

Controlling the composition of raw materials and synthetic conditions, ZSM-5 zeolite with different type of X-ray diffraction pattern can be obtained. When H_2O/SiO_2, RNH_3~+/Na~++RNH_3~+ and OH~-/SiO_2 are taken to represent the concentration of anion of silicate in the gel system, cation effect and the basieity of cation of silicate in the system respectively, an interesting relationship between these and types of X-ray diffraction pattern is presented. Physico-chemical properties of the zeolites with different...

Controlling the composition of raw materials and synthetic conditions, ZSM-5 zeolite with different type of X-ray diffraction pattern can be obtained. When H_2O/SiO_2, RNH_3~+/Na~++RNH_3~+ and OH~-/SiO_2 are taken to represent the concentration of anion of silicate in the gel system, cation effect and the basieity of cation of silicate in the system respectively, an interesting relationship between these and types of X-ray diffraction pattern is presented. Physico-chemical properties of the zeolites with different x-ray patterns and their catalytic properties in the methanol-to-hydrocarbon transformation are determined.

本文探讨了ZSM-5沸石分子筛的合成规律。叙述了由于原料组成及合成条件不同,致使产品的X-射线衍射图谱具有不同形状(ZSM-5A型及ZSM-5B型)。提出了以H_2O/SiO_2、RNH_3+/Na~++RNH_3+及OH/SiO_2分别表徵凝胶体系中硅酸盐阴离子的浓度、阳离子效应及体系中硅酸盐阴离子的硷度以及它们与图谱形状的关联。并测定了具有两种图谱形状的沸石的物化性质及用于甲醇转化为烃类的催化特性。

Cation effect of quartz means the displacement of Si1+ by Al3+in the texture of quartz crystal. This effect occurs commonly in the quartz of gold belt in Gezhen fault. Here the characteristics of the infrared spectroscopy (IR), electron paramagnetic resonance speetroscopy (EPR) and thermoluminescence speetroscopy (TL) are dis-cribed ,and finally the relation between the characteristics metioned above and gold mineralization is discussed.

石英的阳离子效应指石英结构中Al~(3+)与Si~(4+)的置换作用.在分析海南戈枕断裂金成矿带石英中普遍存在的这一作用,以及由此造成的石英粉末红外谱(IR)、顺磁共振谱(EPR)及热释光曲线(TL)特征,进而讨论了这些特征与金成矿的关系.

 
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