助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   基团模型 的翻译结果: 查询用时:0.387秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

基团模型
相关语句
  grouping model
     Based on (MO_6) ionic grouping model as previously proposed in (I), we have calculated the various electro-optical coefficients as well as the optical second harmonic coefficients for LiNbO_3, LiTaO_3, KNbO_3, and BNN crystals.
     本文用文献[1]中所提出的(MO_6)离子基团模型,计算LiNbO_3,LiTaO_3,KNbO_3,BNN等晶体的电光和倍频系数。
短句来源
  “基团模型”译为未确定词的双语例句
     The g factors g ∥, g ⊥ and hyperfine structure constants A ∥, A ⊥ for trigonal Co 2+ centers in CsMgCl 3∶Co 2+ crystals are calculated from the high-order perturbation formulas based on the cluster approach.
     用基团模型的 3d7离子在三角对称下的高阶微扰公式计算了CsMgCl3 晶体中Co2 + 杂质中心的 g因子g∥ ,g⊥ 和超精细结构常数A∥ 和A⊥ .
短句来源
     AN IONIC GROUPING THEORY OF THE ELECTRO-OPTICAL AND NON-LINEAR OPTICAL EFFECTS OF CRYSTALS (Ⅲ) A THEORETICAL CALCULATION OF THE ELECTRO-OPTICAL AND OPTICAL SECOND HARMONIC COEFFICIENTS FOR LiNbO_3, LiTaO_3,KNbO_3, AND BNN CRYSTALS BASED ON A DEFO
     晶体电光和非线性光学效应的离子基团理论(Ⅲ) 利用畸变氧八面体的离子基团模型计算LiNbO_3,LiTaO_3,KNbO_3,BNN晶体的电光和倍频系数
短句来源
     METHODS AND RESULTS Three dimensional quantitative structure activity relationship (3D QSAR) model was constructed by Apex 3D.
     方法和结果 用计算机辅助药物设计专家系统 (Apex 3D)软件模拟并构建药效基团模型和三维构效关系 (3D QSAR)方程。
短句来源
     A Study on Local Composition Model (Ⅱ) A Group Contribution Quasi-Chemical Local Composition Model
     局部组成模型的研究(Ⅱ) 似化学局部组成的基团模型
短句来源
     The perturbation formulas based on a cluster approach are presented in this paper for the calculation of anisotropic g factors g\-x, g\-y and g\-z for 3 d \+7(Co\+\{2+\}) ion in rhombic octahedral site.
     利用基于基团模型的 3d7离子在斜方对称中的高阶微扰公式计算了MgF2 和ZnF2 晶体中Co2 + 杂质中心的各向异性g因子 gx,gy 和gz.
短句来源
更多       
  相似匹配句对
     This improved mixing dielectric model yields an excellent fit to measured data.
     模型
短句来源
     model.
     模型
短句来源
     UNIFAC groups were preselected and classified.
     UNIFAC模型基团进行预选分类。
短句来源
     New Group Contribution Method for Estimating Hydrophobic Constants of Selected Organic Pollutants
     典型有机污染物疏水常数的基团贡献模型
短句来源
     Group Electronegativity
     基团电负性
短句来源
查询“基团模型”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  grouping model
Cooperative learning is not itself a grouping model and can be, thus, often used in streamed schools as well as in non-streamed schools.
      
In this paper, we present an interestbased user grouping model for a collaborative recommender system for Digital Libraries.
      
Road topology construction occurs in the third step in which SORM nodes are linked according to a fuzzy grouping model.
      
The clusters are obtained by grouping model views into equivalence classes using similarity metrics.
      
We proposed an interest-based user grouping model for collaborative filtering recommender systems.
      


In order to elucidate the relationship between the structure and the electro-optical and nonlinear optical effects in crystals of the perovskite type, we have here proposed a deformed oxygen-octahedra model for these crystals. On the basis of quasi-molecular orbitals and ionic bond orbitals for the ionic grouping TiO6 formulated under the imposed crystal field, we have calculated the various electro-optical and second optical harmonic coefficients for the BaTiO3 crystal without introducing any adjustable parameters....

In order to elucidate the relationship between the structure and the electro-optical and nonlinear optical effects in crystals of the perovskite type, we have here proposed a deformed oxygen-octahedra model for these crystals. On the basis of quasi-molecular orbitals and ionic bond orbitals for the ionic grouping TiO6 formulated under the imposed crystal field, we have calculated the various electro-optical and second optical harmonic coefficients for the BaTiO3 crystal without introducing any adjustable parameters. It is gratifying to note that the calculated values of the electro-optical and second optical harmonic coefficients agree satisfactorily with the experimental values. As is to be expected, the quasi-molecular orbitals contribute very little to these optical effects. We have been led to the following conclusions:

本文对钙钛矿型晶体的电光及倍频效应的机理提出了一个(MO_6)离子基团模型。并从(TiO_6)离子基团的准分子轨道及晶格场位能作用下的(TiO_6)离子基团的离子键轨道出发,利用ABDP理论,分别计算了BaTiO_3的各个电光及倍频系数。计算结果表明,在没有引入任何可调整参量的情况下,用(TiO_6)离子基团的晶格场理论所得到的电光及倍频系数的计算值和实验值符合得相当好,而准分子轨道对这些效应的贡献很小。由此得出三个结论:(1)BaTiO_3的电光及倍频效应主要由(TiO_6)氧八面体的畸变所产生,畸变越大,这些效应也越大;(2)当BaTiO_3处于铁电相时,由于晶体内自发极化的结果,产生一个强的奇次项晶格场,这是BaTiO_3具有大的电光及倍频效应的主要因素。而(TiO_6)离子基团的共价键成份,由于彼此间互相抵消,对这些效应贡献很小;(3)BaTiO_3的电光及倍频系数和它的自发极化P_s之间有一简单的线性关系。

A highly deformed oxygen-octahedra group (IO3)-1 such as that found in the iodate has been adapted te explain the second harmonic optical coefficients of the LiIO3 crystal. Calculations have been made on the basis of such an ionic grouping model. Calculated values are in good agreement with the experimental ones, hence the following conclusions:

本文对碘酸盐晶体的倍频效应提出了一个(IO_3)~(-1)离子基团模型,并用(IO_3)~(-1)离子基团的分子轨道计算了α-LiIO_3的倍频系数,计算值和实验值符合得很好。由此得出以下结论:碘酸盐晶体的倍频效应主要由(IO_3)~(-1)离子基团和它的共价键轨道所决定。而在(IO_3)~(-1)离子基团中,对倍频效应作出主要贡献的是碘的孤对电子轨道和氧的|2σ>,|2P_y>轨道。

Based on (MO_6) ionic grouping model as previously proposed in (I), we have calculated the various electro-optical coefficients as well as the optical second harmonic coefficients for LiNbO_3, LiTaO_3, KNbO_3, and BNN crystals. If we assume that the oxygen-octahedra in the crystal lattice of these crystals of O_h symmetry all possess the same energy level and wavefunctions, then the energy level and the wavefunction for LiNbO_3, LiTaO_3, KNbO_3, and BNN erystals of C_(3v), or C_(2v) symmetry can be found upon...

Based on (MO_6) ionic grouping model as previously proposed in (I), we have calculated the various electro-optical coefficients as well as the optical second harmonic coefficients for LiNbO_3, LiTaO_3, KNbO_3, and BNN crystals. If we assume that the oxygen-octahedra in the crystal lattice of these crystals of O_h symmetry all possess the same energy level and wavefunctions, then the energy level and the wavefunction for LiNbO_3, LiTaO_3, KNbO_3, and BNN erystals of C_(3v), or C_(2v) symmetry can be found upon applying the theory of group representations. Furthermore, by using the ABDP theory, we have calculated their electro-optical and optical second harmonic coefficients. It is interesting to note that without introducing any adjustable parameters the calculated values agree satisfactorily with the experimental data. The dependence of the magnitude and the sign of the optical second harmonic coefficients for these crystals upon the degree of the oxygen-oetahedra distortion has also been interpreted theoretically in this paper. We have thus arrived at the following conclusions:

本文用文献[1]中所提出的(MO_6)离子基团模型,计算LiNbO_3,LiTaO_3,KNbO_3,BNN等晶体的电光和倍频系数。假设在O_h对称时,这些晶体中的氧八面体具有相同的能级和对称波函数,则通过群表示理论就可得到在C_(3ν),(C_2υ)对称性时氧八面体的能级和对称波函数,并进而用ABDP理论计算它们的电光和倍频系数。计算结果和实验符合得相当好。本文并从理论上解释了这些晶体的倍频系数大小、符号和氧八面体畸变间的关系,由此可以得到以下两个结论:(1)畸变氧八面体的离子基团模型不但适用于钙钛矿型材料,同时也适用于钨青铜型、LiNbO_3型材料。(2)在钨青铜型、LiNbO_3型的材料中,仍是“离子键”对电光和倍频效应作出主要贡献,同时由于LiTaO_3的共价键成份比LiNbO_3大,因而LiTaO_3的非线性光学效应比LiNbO_3小。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关基团模型的内容
在知识搜索中查有关基团模型的内容
在数字搜索中查有关基团模型的内容
在概念知识元中查有关基团模型的内容
在学术趋势中查有关基团模型的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社