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ion size
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  离子尺寸
     STUDY OF MAGNETIC PROPERTIES AND ION SIZE EFFECT FOR (La_(1-x)Y_x)_(2/3)Ca_(1/3)MnO_3(0≤x≤0.3) MANGANESE
     (La_(1-x)Y_x)_(2/3)Ca_(1/3)MnO_3(x=0~0.3)体系的磁特性与平均稀土离子尺寸效应的研究
短句来源
     ION SIZE EFFECT OF T_c-PLATEAU IN R_(1-x)Pr_xBa_2Cu_3o_(7-δ)
     R_(1-x)Pr_xBa_2Cu_3O_(7-δ)超导T_c平台的离子尺寸效应
短句来源
     The magnetic properties of perovskite (La 1-x Y x) 2/3 Ca 1/3 MnO 3 (0≤x≤0.3) compounds are systematically investigated and it is given that the transition temperature T c is related to average ion size of La site.
     研究了 (La1 -xYx) 2 / 3Ca1 / 3MnO3(0 .0≤x≤ 0 .3)体系的磁特性 ,给出了磁转变温度Tc 与La位平均离子尺寸之间的关联 .
短句来源
     We suggest that these ion size effects might be interpreted qualitatively by formation of the PrBa2Cu3O7-δ.
     这个离子尺寸效应的起因可能与PrBa_2Cu_3O(7-δ)晶胞团的形成有关。
短句来源
     It was found that there is a T_c- plateau in the range of low x as R ̄(3+) radiusri≤ri(Dy). The Pr-concentration width corresponded by T_c-piateau exhibits a R ̄(3+)ion size effect。
     发现在离子半径r_i≤r_i(Dy)时,在低Pr浓度范围内存在一个超导T_c平台,并且平台宽度表明一个R ̄(3+)离子尺寸效应。
短句来源
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  “ion size”译为未确定词的双语例句
     Using the point ion model and taking into consideration the contribution of the second-nearest ions in the ion size correction, the unperturbed state of FA(Li) center in KCl crystal was obtained. Then energy level of FA center was calculated using perturbation method.
     采用点离子模型并在离子尺度修正中计入次近邻离子的贡献,计算了KCl晶体F_A(Li)心的非微扰态,然后以微扰法计算了F_A(Li)心的能级位置.
短句来源
     The regularity in change of the ion size with its charge has been discussed in this paper.
     就同一元素形成不同电荷的离子时其离子半径的变化规律作了简要的探讨.分析了影响离子半径的因素,结果是:不管是阳离子还是阴离子;
短句来源
     Formation of antibacterial zeolites by fused_salt ionic reaction and effect of reacting conditions on ionexchange capacity such as temperature, time, dosage of zinc_ion, size of reactants are stated in this paper. The results show that these products contain more stable zinc_ions, and zeolites and zinc chloride react optimumly at 500 ℃ for 3 h when their mass ratio was 2∶1. The study provides useful data for the production.
     研究了用熔盐离子交换法合成抗菌沸石,考察了各种反应条件,如温度、时间、锌盐用量、沸石粒度对锌离子交换量的影响.结果表明:当反应时间为3h,反应温度为500℃,沸石与氯化锌投料质量比为2∶1时,可获得最大的锌离子交换量.
短句来源
     Various [BO6] units exhibit remarkable differece in stability, ion size and ion electrovalence. Therefore, the growth interfaces with electric charges would make a choice among those [BO6] growth units, resulting in the short range of fluctuation in composition and structure at the stage of crystalgrowth and preparing for the subsequent formation of ordered domains and other chemical defect clusters.
     在基元组装过程中,各种[BO_6]八面体基元在稳定性、尺寸大小与电价上的分异致使生长界面对基元有一定的选择性,从而造成了晶体生长时成分与结构的短程起伏,并为有序畴及其它化学缺陷团簇的形成提供了条件.
短句来源
     It was indicated that the roughness of the material surface increased with the ion size and fluence at the high energy in contrast to the cluster implantation at the low energy.
     与低能团簇注入相反 ,在高能条件下 ,随着离子尺度和注量增加 ,材料表面的粗糙度也越严重 .
短句来源
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  相似匹配句对
     After ion implantation, the size of holes would be changed.
     经低能离子注入以后 ,这些孔洞的大小会有所变化 .
短句来源
     A SMALL-SIZE ARC-DISCHARGE ION-SOURCE
     一个小型弧放电离子源
短句来源
     ION BEEN OXIDATION
     离子束氧化
短句来源
     particle size;
     粒径大小;
     (3) The size of C.
     川鄂连蕊茶种群的生殖分配是地径大小的函数,拟合回归方程为:
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  ion size
Superimposed cathodic pulses accelerated the formation of titanate thin films, and both the electrode surface pH and (Ba2+, Sr2+) ion size had a strong influence on film formation.
      
The results are qualitatively interpreted in terms of solute-water structural properties and the ion size effect.
      
In the theory, the higher order term O(ka) which involves the ion size parameter has been replaced by a linear term with an empirical constant.
      
A rationalization of this type of relation is proposed on the basis of sums of reciprocal radii terms which represent the dependence of electrostatic hydration energy on ion size.
      
The Cs ion only partially occupies the tunnel, because the length of b-axis is shorter than Cs ion size.
      
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Moderate conentration and well-distributed F centers were created in Li-Na doped KCl crystals through diffusion. Hg lamp was used for the centers conversion and FA (II)-FB (II) centers were obtained. Absorption spectrum of the crystal was measured at 77 K, in which double-peaks structure was displayed obviously. Luminous spectrum of FB(II)-FA(II) centers was measured at the same temperature. The luminous peaks of FB(II)-FA(II) centers are at 2.49 μm and 2.66μm respectively. Using the point ion model and taking...

Moderate conentration and well-distributed F centers were created in Li-Na doped KCl crystals through diffusion. Hg lamp was used for the centers conversion and FA (II)-FB (II) centers were obtained. Absorption spectrum of the crystal was measured at 77 K, in which double-peaks structure was displayed obviously. Luminous spectrum of FB(II)-FA(II) centers was measured at the same temperature. The luminous peaks of FB(II)-FA(II) centers are at 2.49 μm and 2.66μm respectively. Using the point ion model and taking into consideration the contribution of the second-nearest ions in the ion size correction, the unperturbed state of FA(Li) center in KCl crystal was obtained. Then energy level of FA center was calculated using perturbation method. The result is satisfactory compared with the experiment data.

采用扩散法在KCl:Li:Na晶体中形成了浓度适当、分布均匀的F心.以汞灯进行色心转型,获得了F_A(II)心和F_B(II)心.测量77K时晶体的吸收谱,观察到明显的双峰结构.在相同的温度下测得晶体的荧光谱.F_b(II)心和F_A(II)心的荧光峰分别为2.49μm和2.66μm.采用点离子模型并在离子尺度修正中计入次近邻离子的贡献,计算了KCl晶体F_A(Li)心的非微扰态,然后以微扰法计算了F_A(Li)心的能级位置.计算值与实验值比较,结果令人满意.

Abstract Dependence of superconducting T_c upon Pr-substitution concentration x wasstudied systematically in R_(1-x)Pr_xBa_2Cu_3o_(7-δ) system with R = Nd, Dy, Tm, Yb andLu。 It was found that there is a T_c- plateau in the range of low x as R ̄(3+) radiusri≤ri(Dy).The Pr-concentration width corresponded by T_c-piateau exhibits a R ̄(3+)ion size effect。 We suggest that the ion size effect of T_c -plateau might result fromthe change of local state of Pr 4f electron. A critical R ̄(3+) radius,r_(ic),...

Abstract Dependence of superconducting T_c upon Pr-substitution concentration x wasstudied systematically in R_(1-x)Pr_xBa_2Cu_3o_(7-δ) system with R = Nd, Dy, Tm, Yb andLu。 It was found that there is a T_c- plateau in the range of low x as R ̄(3+) radiusri≤ri(Dy).The Pr-concentration width corresponded by T_c-piateau exhibits a R ̄(3+)ion size effect。 We suggest that the ion size effect of T_c -plateau might result fromthe change of local state of Pr 4f electron. A critical R ̄(3+) radius,r_(ic), is suggestedand superconductivity disappears as ri>r_(ic).

系统地研究了R_(1-x)Pr_xBa_2Cu_3O_(7-δ)的超导T_c与Pr替代浓度x的关系。发现在离子半径r_i≤r_i(Dy)时,在低Pr浓度范围内存在一个超导T_c平台,并且平台宽度表明一个R ̄(3+)离子尺寸效应。我们认为,T_c平台宽度的离子尺寸效应可能起源于Pr4f电子局域态的改变。提出一个临界R ̄(3+)离子半径r_(ic),r_i>r_(ic)时RBa_2Cu_3O_(7-δ)的超导电性消失

onic conductivity of epoxy resin -polyethylene glycol (PEO400) interpenetrating polymer netword(IPN) containing sodium perchlorate salt betWeen 15-70 ℃ under pressure from 0 to 40 MPa were investigated. The conductivity maximum exists near 6 MPa on conductivity versus pressure curve for there amorphous films. Over 6 MPa pressure the conductivities decreased further with increasing pressure. The effect of pressure on the achvation volume is determined. These were compared with those of IPN containing lithium...

onic conductivity of epoxy resin -polyethylene glycol (PEO400) interpenetrating polymer netword(IPN) containing sodium perchlorate salt betWeen 15-70 ℃ under pressure from 0 to 40 MPa were investigated. The conductivity maximum exists near 6 MPa on conductivity versus pressure curve for there amorphous films. Over 6 MPa pressure the conductivities decreased further with increasing pressure. The effect of pressure on the achvation volume is determined. These were compared with those of IPN containing lithium perchlorate. For pressure dependence of conductivity and activation volume, a microscopic explanation was obtained by considering the iondipole interaction and the resuits indicated the ion micropassage in polymer ion conductor was effeCted by mobile ion size. The less ion radius is, the more effeCtive on passages is and the greater conductivity changes are.

研究了含NaClO4的PEO400与环氧树脂所形成的完全无定形的互穿聚合物网络(IPN)固体电解质的电导率与压力和温度的关系.在室温至70℃和压力0—40MPa的范围内,这类IPN的电导率在6MPa左右出现极大值,超过6MPa以后,电导率随压力的增加而减小.计算了在不同压力下的激活体积.与含LiClO4的同类IPN体系进行了比较.从离子偶极作用原理出发对结果进行了讨论.实验表明离子通道畸变受运动离子的大小影响.离子半径越小,对离子通道影响越大,因而电导率改变也大.

 
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