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结构保留
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  structure preserving
     A Structure Preserving Multi-variable Feedback Model of a Power System in the Frequency Domain
     结构保留电力系统多变量频域反馈模型
短句来源
     Review,Analysis and Prospect of Structure Preserving Models in Power Systems
     电力系统结构保留模型的回顾、分析和展望
短句来源
     The strict Lyapunov energy function is constructed for the network structure preserving model and load model with the steady voltage character.
     基于网络结构保留模型,发电机采用二阶经典模型,负荷计及静态电压特性,构造了满足严格Lyapunov稳定性的能量函数。
短句来源
     Research on Structure Preserving Models and Construction of Bounding Functions in Power Systems
     电力系统结构保留模型及上界函数法暂态稳定域构建的研究
短句来源
     In this paper, based on the structure preserving model, the topological energy function and the method of the potential energy boundary surface of power system transient stability analysis which all have been developed in recent years, an effective algorithm for deriving the practical dynamic security regions (PDSR) of multimachine power systems is proposed. One hyperplane of the PDSR is approximated by least squares using the critical points selected with reference to orthogonal tables.
     本文在近年发展的电力系统暂态稳定结构保留模型、拓朴能量函数和势能界面法的基础上,首次使用超平面拟合和正交选点方法,构成了决定实用电力系统动态安全域(PDSR)的可行算法。
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  “结构保留”译为未确定词的双语例句
     On quantitative structure-retention relationship for quinazoline derivatives
     喹唑啉类衍生物定量结构保留关系的研究
短句来源
     Results of gap fraction were:original broadleaved Korean pine forest (0.194),original broadleaved stand (0.185),structure switched stand (0.315),structure reserved stand (0.363),structure destroyed stand (0.235),heavy disturbed stand (0.550),secondary birch stand (0.213), and larch plantations (0.227).
     结果表明 ,林窗片断值分别为 :原始阔叶红松林 0 194、原始阔叶类 0 185、结构转换型 0 315、结构保留型 0 36 3、结构破坏型 0 2 35、严重干扰类型 0 5 5 0、次生白桦林0 2 13和人工落叶松林 0 2 2 7;
短句来源
     STUDY ON THE RETENTION CHARACTERISTICS OF MNOS STRUCTURES
     MNOS结构保留特性的研究
短句来源
     Results of leaf area index were:original broadleaved Korean pine forest (1.766),original broadleaved stand (1.680),structure switched stand (1.250),structure reserved stand (1.028),structure destroyed stand (1.550),heavily disturbed stand (0.635), secondary birch stand (1.731), and larch plantations (1.473).
     叶面积指数分别为 :原始阔叶红松林 1 76 6、原始阔叶类 1 6 80、结构转换型 1 2 5 0、结构保留型 1 0 2 8、结构破坏型 1 5 5 0、严重干扰类型 0 6 35、次生白桦林1 731和人工落叶松林 1 4 73。
短句来源
     Distinct structural change was observed across the borders. The liquid structure of Fe0.50Si0.50 alloy inherited the structure of intermetallic compound FeSi to some extent. Covalent bonding between Si-Si atoms was speculated to exist in alloys with Si content higher than 50.0%.
     液态Fe0.50Si0.50合金的结构保留了一些金属间化合物FeSi的特征,当Si含量大于50.0%时,Fe-Si合金熔体中开始出现Si-Si共价键.
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     Using AFS algebra and AFS structure, any human ordinary fuzzy concept can be represented.
     结构
短句来源
     Compared the actuality of the structure of th
     *; 结构;
短句来源
     STUDY ON THE RETENTION CHARACTERISTICS OF MNOS STRUCTURES
     MNOS结构保留特性的研究
短句来源
     the ownership reservation system's right structure;
     二是所有权保留中的权利结构
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  structure preserving
If no breakdown occurs in the method, then it can be shown that the Hamiltonian structure preserving requirement does not destroy the essential feature of the nonsymmetric Lanczos algorithm.
      
The possibility of avoiding this problem with efficient structure preserving clause form translations is examined briefly and appears unfavorable.
      
An efficient and stable structure preserving algorithm for computing the eigenvalues of a Hamiltonian matrix
      
An efficient and stable structure preserving algorithm, which is a variant of the QR like (SR) algorithm due to Bunse-Gerstner and Mehrmann, is presented for computing the eigenvalues and stable invariant subspaces of a Hamiltonian matrix.
      
It appears to have properties that would allow its function as a cytoskeletonlike structure preserving cell shape.
      
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Biohemical and immunological studies have been carried out to investigate the biochemimical composition and immunogenicity of the heat-soluhilized zona pellucida (SZP) of Aristichthys nobilis egg. and their changes following the process of fertilization. These studies showed that this SZP has strong heteregeneous antigenicity in rabbit, lt could induce a high titer antiserum in the immunized rabbits. Biochemical analysis reveals that this SZP consists of three proteins bands of different molecular weight on...

Biohemical and immunological studies have been carried out to investigate the biochemimical composition and immunogenicity of the heat-soluhilized zona pellucida (SZP) of Aristichthys nobilis egg. and their changes following the process of fertilization. These studies showed that this SZP has strong heteregeneous antigenicity in rabbit, lt could induce a high titer antiserum in the immunized rabbits. Biochemical analysis reveals that this SZP consists of three proteins bands of different molecular weight on PAGE gel. while on the SDS—PAGE gel, it shows five protein bands. By the application of sephadex G-200 gel chromatography, two components, SZP-1 and SZP-11 could be separated from SZP. SZP-11 is a protein component with lower molecular weight, which could not react with the antiseum against SZP. while SZP-1 which contains protein components of the first and the second bands of SZP on the PAGE gelcould react with the antiserum against SZP. A major component protein of this SZP, which is the second protein band On the PAGE gel and can react with antiserum against this SZP, has been prepared by PAGE. By using concentration gradient PAGE. the molecular weight of this major component protein has been determined to be 430,000 daltons. Following treated with 1%SDS and 1%β-mercaptoethanal, this major component protein splits into smaller protein fragments with molecular weight around 100,000 daltons, which could nO longer react with antiserum against this SZP. This phanomenon suggests that this majo rcomponent protein of SZP might consist of four subunits with molecular weight of 100,000 daltons and that the stuctural linkage of disulfide bridges is necessary for the antigenic determinant properties of this major component protein. Following fertilization, the biochemical composition and immunogenicity of SZP were identical with pre-fertilization SZP. These result indicates that the biochemical and immunologcal properties of SZP of Aristichthys nobilis egg have not gone to any noticeable alteration during the process of fertilization.

本文应用生化及免疫技术对鳙鱼卵热溶性透明带(SZP)的免疫活性组成及免疫学特征进行研究,并对受精前后鳙鱼卵SZP的生化组分的一些生化组成及免疫原性进行比较。研究结果证明经SephadexG—200柱层析分离得到的鳙鱼卵SZP—1是鳙鱼卵SZP的免疫活性组分,它含有两种分子量相近的蛋白质,其中含量较多的一种蛋白质命名为鳙鱼SZP主要蛋白。应用不同浓度聚丙烯酰胺凝胺电泳法测得其分子量为430,000道尔顿,SDS—PAGE证明它是由四个分子量约100,000道尔顿的亚单位组成。二硫键连结的立体结构是保留鳙鱼卵SZP主要蛋白的免疫原性所必需的。受精以后鳙鱼卵SZP的生化组成和免疫原性均没有改变,鳙鱼卵SZP免疫活性组分和受精过程精卵识别的特异性物质无关。

In this paper, based on the structure preserving model, the topological energy function and the method of the potential energy boundary surface of power system transient stability analysis which all have been developed in recent years, an effective algorithm for deriving the practical dynamic security regions (PDSR) of multimachine power systems is proposed. One hyperplane of the PDSR is approximated by least squares using the critical points selected with reference to orthogonal tables. Such PDSR not only can...

In this paper, based on the structure preserving model, the topological energy function and the method of the potential energy boundary surface of power system transient stability analysis which all have been developed in recent years, an effective algorithm for deriving the practical dynamic security regions (PDSR) of multimachine power systems is proposed. One hyperplane of the PDSR is approximated by least squares using the critical points selected with reference to orthogonal tables. Such PDSR not only can simulate the interested parts of dynamic security regions well, but also can be expressed and used easilly.

本文在近年发展的电力系统暂态稳定结构保留模型、拓朴能量函数和势能界面法的基础上,首次使用超平面拟合和正交选点方法,构成了决定实用电力系统动态安全域(PDSR)的可行算法。该PDSR不仅能较好地模拟实际感兴趣的动态安全域,而且易于表达和使用。

A new model is proposed for the study of small disturbance stability where the block diagram (transfer function) of a power system is in feedback system form and the structure of the system is preserved. Since the new model keeps the sparsity of the system, it can save the CPU time a great deal. A numerical example, in which the small distu- rbance stability of a power system is investigated using the multi-variable Nyquist criteria, is included to show the advantages of the proposed model.

本文建立了一个新颖的结构保留电力系统反馈模型,并以多变量奈魁斯特(Nyquist)判据分析了实际的电力系统小干扰稳定性问题,验证了该模型的优越性。

 
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