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     analytical parameters.
     实例分析表明 ,该方法是可行的
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     parameters alternatively.
     我们基于非线性最小二乘准则,对散射点参数和初相误差进行迭代估计,提
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     d)Optimal working parameters.
     (4)最佳工作参数等的丰富测量功能.
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     (2) parameters setting;
     (2)参数设置;
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  parameters
The essential dimension is a numerical invariant of the group; it is often equal to the minimal number of independent parameters required to describe all algebraic objects of a certain type.
      
We show that the structure of a block outside the critical hyperplanes of category O over a symmetrizable Kac-Moody algebra depends only on the corresponding integral Weyl group and its action on the parameters of the Verma modules.
      
Quantitative parameters in an analog of the Beurling-Pollard theorem differ from those for A.
      
Quantitative parameters in an analog of the Beurling-Pollard theorem differ from those for A.
      
In this article we consider the question when one can generate a Weyl- Heisenberg frame for l2(?) with shift parameters N, M-1 (integer N, M) by sampling a Weyl-Heisenberg frame for L2(?) with the same shift parameters at the integers.
      
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The form of quantum theory of reaiation introdnced by Heiaonbarg is diarnaaed from the point of view of the transformation theory of quantum electrodynamics.A general investigation of the connection between Heisenberg's method and Dirac'smethod of variation of parameters is given.The exetension of Heisenberg's methodto eigenvalue problems.which was first carried out by Weissklpf for the self energyof the electron.is presented in such a way as to show more clearly its quantummechanical interpretation.Ageneral...

The form of quantum theory of reaiation introdnced by Heiaonbarg is diarnaaed from the point of view of the transformation theory of quantum electrodynamics.A general investigation of the connection between Heisenberg's method and Dirac'smethod of variation of parameters is given.The exetension of Heisenberg's methodto eigenvalue problems.which was first carried out by Weissklpf for the self energyof the electron.is presented in such a way as to show more clearly its quantummechanical interpretation.Ageneral proof of the equivalence of we jsskopf's me-tbod and the method of the perturbation theory of stationary stntes in quantumicechanics is given.

作者在本文中从量子力学之变换理论之观点,研究海孙柏格在量子辐射论中之贡献,及海氏之方法与以前之狄拉克在量子辐射论中所用之方法之关系。海氏之方法曾为魏斯可夫推广应用于电子之自能问题。魏氏之观念及方法与普通量子力学中之观念及方法之关系,作者亦於本文中加以说明。

The problem of large deflection of a clamped circular plate under uniform pressure is studied by the method of successive approximation in terms of the parameter representing the ratio of the center deflection to the thickness. The tedious numerical computations, involved in Way's power series solution are thus avoided. The yielding condition at the edge checks very well with the experimental results given by McPherson, Ramberg and Levy. The method may be easily extended to any other boundary conditions...

The problem of large deflection of a clamped circular plate under uniform pressure is studied by the method of successive approximation in terms of the parameter representing the ratio of the center deflection to the thickness. The tedious numerical computations, involved in Way's power series solution are thus avoided. The yielding condition at the edge checks very well with the experimental results given by McPherson, Ramberg and Levy. The method may be easily extended to any other boundary conditions and loading details.

本文所研究者,为一周缘夹紧之圆板,在匀布之侧向重压下所生之巨大挠曲。本文用圆板中点之挠曲距离与板厚之比率为参数,逐步求得本题之近似解答,藉此避免前人Way氏之幂级数法中繁重之数字计算。圆板周缘呈现委屈现象之条件,亦可求得,其结果与McPherson,Ramberg及Levy诸氏之实验,完全吻合。本法亦可适用于一圆板在其它周缘条件及其它荷重情况下之诸问题。

The viscosities of the binary solutions of n-butyl alcohol and N-ethylanilinehave been measured at 15.00℃ in an Ubbelohde viscometer.The fluidities of n-butyl alcohol and N-ethylaniline were found to be 29.61 and 39.05 rhes respec-tively,while the solution at ca.30 mole percent butyl alcohol shows a maximumfluidity of 41.10 rhes.This increase of fluidity probably results from the break-ing of association interactions between the hydroxyl bonds of butyl alcoholmolecules in the solution.Deviations from the linear...

The viscosities of the binary solutions of n-butyl alcohol and N-ethylanilinehave been measured at 15.00℃ in an Ubbelohde viscometer.The fluidities of n-butyl alcohol and N-ethylaniline were found to be 29.61 and 39.05 rhes respec-tively,while the solution at ca.30 mole percent butyl alcohol shows a maximumfluidity of 41.10 rhes.This increase of fluidity probably results from the break-ing of association interactions between the hydroxyl bonds of butyl alcoholmolecules in the solution.Deviations from the linear additivity of fluidities arepositive for all concentrations.The experimental data can be represented fairlywell by an equation similar to that proposed by Eyring,i.e.φ=((?)/Nh)exp(-(x_1△F_1+x_2△F_2+Bx_1x_2/RT))with the parameter B=-374 cal/mole,and equally well by the equation of vander Wyk:logφ=x_1~2 logφ_1+x_2~2logφ_2+B'x_1x_2with the parameter B'=3.363.

正丁醇—N-乙基苯胺雨元溶液在15.00℃时的粘度,已被测定。这溶液的流度在正丁醇的分子浓度是30%时,呈现一最大值。溶液的流度增高,可能是由于正丁醇分子聚合的离解所致。实验数据可以相当满意地用类似 Eyirng 所提出的雨元溶液粘度公式或 van der Wyk 的公式来表示。

 
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