In addition, The inhibitory effect of nanometer powder was studied by physics suppression, chemistry suppression and special flame retardation on free radical, based on the basic theory of nano-powder surface effects and the thermogravimetric analysis of powder. And the characterization parameters of nano-powder to control explosion suppression were poined out.
并在纳米粉体表面效应等基本理论的基础上，结合粉体热重分析，从物理、化学抑制自由基作用及纳米粉体特殊的阻燃抑爆作用分析探讨了纳米粉体对矿井瓦斯的抑爆机理，提出了纳米抑爆粉体的性能表征参数。
Electromagnetic theory and the damper working condition were used to deduce theoretically the formula of fluctuating current in the damper coil as the rotor whirled. The formulas of damping coefficient and stiffness coefficient of damper were obtained and the additional power loss of electromagnetic retardation torque in an unlaminated rotor system was discussed. The influence of the static current and rotating speed on the damper characteristics was analyzed.
基于电磁学原理和阻尼器的工作条件，推导出转子涡动时线圈中波动电流的计算公式，得到了阻尼器的阻尼系数和刚度系数的计算公式，讨论了非叠片转子系统电磁阻力矩的附加功耗问题，并通过数值计算和实验研究了静态电流和转速对阻尼器工作特性的影响。
According to unsteady heat transfer theory, thermal retardation of concrete is analysed in daitail using numberial simulation method.
本文根据非稳定传热理论，运用数值模拟的方法对混凝土在冬期施工中的蓄热保温进行系统的热分析。
In this paper Laplace transforms is utilized in viscoelastic theory of polymers making the relations between various viscoelastic functions like relaxation modulus, creep compliance and functiqns representing dynamic behavior simple and clear, relaxation spectrum and retardation spectrum are defined in terms of Laplace transform to correlate all viscoelastic functions.
将拉普拉斯变换应用于聚合物粘弹性理论，使粘弹性材料的特性函数如松弛模量、蠕变柔量以及表示动态力学性能的函数之间的关系简单明了，并用拉氏变换定义松弛谱和推迟谱，将各粘弹函数相互联系起来。
The theory and experiment show that the most important feature of this composite compensator is its achromaticity in a certain spectral range. the compensator can be used to polychromatic light because its retardation is independent of wavelength.
本文在复合式补偿器研究基础上，进一步从理论和实验上证明了该补偿器不仅具有相位补偿性能，而且在一定的光谱范围内满足消色差性能，削弱了延迟量对波长的依赖关系，适合于复色光使用。
Through the further research to the theory of the high-accuracy achromatism phase retarders, the changing curve of retardation under the different center refracting rate and different precision are obtained.
通过对高精度消色差相位延迟器理论设计的再研究，分别得到在不同中心折射率下和不同延迟精度下，延迟量随折射率改变的变化曲线。
Based on the total-reflection phase transformation theory, the Fresnel rhomb retarder is obtained with a structure angle with which the phase retardation is insensitive to the angle of incidence.
根据全反射相变理论设计了菲涅耳菱体型相位延迟器延迟量对入射角变化不敏感的结构角。
The combination of previous and present papers has established the theory and method for working out relaxation and retardation spectra and other viscoelastic functions from dynamic mechanical temperature spectrum at a constant frequency.
综合我们的研究结果，可从一个固定频率下的动态力学温度谱求得聚合物的松弛时间谱及其它粘弹函数。
The theory confirms the increase in the retardation effect with decrease in particle size.
理论证实，随着颗粒尺寸的减小，这一减速效应将增大。
Based on the Laplace Transformation of the visco elastic creep of concrete, a continuous retardation spectrum is deduced. It makes the solidification creep theory suitable for concrete with different creep mode.
通过对混凝土粘弹性相的任意徐变度函数C（t-t'）进行Laplace变换，导出了混凝土材料的连续阻尼谱函数，可以使Bazant，Z。
Then use this system, from two aspects which involve the spectrum characteristic of retarder and sensibility of retardation to the incidence angle, we test the practical performance of several kinds of achromatic retarders separately, the results are congruous to the theory analyses basically.
然后应用该系统，从延迟量的光谱特性及对入射角的敏感性两方面，对几类消色差相位延迟器分别进行了实际的性能测试，测试结果同理论分析基林8符。