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parameter   equation
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      The solubility parameter is usually determined at room temperature.
     通常溶度参数是在室温下测定的.
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     estimation of its parameter;
     评定运动模糊的参数;
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     and b was empirical parameter.
     b为经验常数。
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     Aerodynamic parameter identification of rapid self-rotating flight vehicle
     高速自旋飞行器气动参数辨识
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     kishidai Nakamura and G.
     kishidaiNakamura、杨谷舟蛾G.
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Experiments on the dynamics of fast fluidization were carried out in a 100mm-diameter plexiglas column, 8 meters in height, on FCC catalyst, alumina powder, iron ore concentrate and fine pyrites cinder. Based on the rapid formation and dissolution of dense strands or clusters of solids dispersed in a continuum of dilute phase, a physical flow model of fast fluidization has been proposed leading to a first-order differatial equation, the solution of which yields a four-parameter equation of...

Experiments on the dynamics of fast fluidization were carried out in a 100mm-diameter plexiglas column, 8 meters in height, on FCC catalyst, alumina powder, iron ore concentrate and fine pyrites cinder. Based on the rapid formation and dissolution of dense strands or clusters of solids dispersed in a continuum of dilute phase, a physical flow model of fast fluidization has been proposed leading to a first-order differatial equation, the solution of which yields a four-parameter equation of voidage distribution along the bed height z

在外径100mm,高8m的有机玻璃的装置上,对FCC催化剂、三氧化二铝粉料、铁精矿和细粒黄铁矿烧渣进行了快速流态化的流动实验。基于分布在稀薄连续相中颗粒密集体的不断形成和解体的现象,提出了快速流态化的分相流动的物理模型,并用一个一阶微分方程加以描述。其解为 In((ε-ε_a)/(ε'-ε))=-(z-z_i)/Z_o 四个模型参数,即ε_a、ε'、Z_o、和z_i由实验确定。

In this paper, an empirical method based on two atom-parameter equations is developed.

本文中我们提出了一个以两个原子参数方程为基础的经验方法,并且成功地估计了氢、氧在过渡金属上起始化学吸附热:进而,应用键能键级方法经验地计算了氧同过渡金属表面化学吸附活化能。计算的结果与实验数据符合。 因而将24种金属分为A、B和C三组,三组之间化学吸附特性彼此不同。

In this paper,it is proved that the nonlinear relationship between stressand strain can be described by a six parameters equation,from which someanalytical formulae could be obtained to evaluate the structural stability. These analytical formulae show that the effects of various imperfectionson the collapse strength of structure may be accounted for by a propermathematical-physlcal parameter,and the compressive strength can be evalu-ated together with the stability.The property of these analytical...

In this paper,it is proved that the nonlinear relationship between stressand strain can be described by a six parameters equation,from which someanalytical formulae could be obtained to evaluate the structural stability. These analytical formulae show that the effects of various imperfectionson the collapse strength of structure may be accounted for by a propermathematical-physlcal parameter,and the compressive strength can be evalu-ated together with the stability.The property of these analytical formulae is common to various structu-res,such as beams,columns,plates,spherical shells,etc.,and suggestssome principles of model experiments so as to develop new testing methods tocalculate the stability of structures experimentally.This paper also shows that the three famous empirical formulae used tocalculate the collapse strength of bars are taken as theoretical formulae,andthe difficulty in evaluating the stability of spherical shells,which exists inclassical theory of stability for a long time,may be solved.

本文用一个六参数方程来描述材料应力应变间的非线性关系,导出了计算结构稳定性的解析算式。其中采用一些参数反映了各种因素对结构稳定性的影响,并可将结构的强度和稳定问题合并计算。本文的解析算式适用于多种承压结构,它阐明了承压结构稳定性的模型实验原理,提出了改进模型实验的新方法。本文还证明:计算梁柱稳定问题的三个著名经验算式是本文解析算式的三个简化形式,解决了经典稳定理论中长期存在的计算球壳稳定性的困难。

 
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