查询词典 quasi stationary

One of such distribution functions can be used to describe satisfactorily the three-dimensional quasi-stationary grain size distribution obtained from experimental measurement results for pure iron by serial sectioning, and those obtained from computer simulations by vertex method, surface evolver method, phase-field method, Monte Carlo method with Potts model.

采用纯Fe实验数据以及顶点法、基元演化法、相场模型和Monte Carlo法进行了验证，结果表明，函数族中峰值左偏的函数适合三维准稳态晶粒尺寸分布的定量表述。

It is also shown that heating frontogenesis is unfavourable to the maintenance of horizontal stable layer in the quasi-stationary front

分析还表明，凝结加热的锋生作用不利于南岭静止锋水平稳定层的维持。

The maj or obj ect of this paper is the medium.small size concrete dams that have been used for many years.They have the characteristic that the alteration of water height of reservoirs is unobvious and the dams, displacements are affected mainly by temperature.With a case,the method of stepwise regression is used to analyze the vertical displacement prototyDe observed data.Then regression equation is established,the relation of dam,s displacement with hydraulic pressure、temperature、time effect is analyzed and the displacement change rule is obtained,the dam'S displacement onlv dependent to temperature is received.According to the theory of Finite Elements Method,the quasi-stationary temperature field formula and temperature stress formula are deduced.The QTP program and TFEM3D program are written with FORTRAN.The same case is calculated through QTP program to solve the quasi-stationary temperature and through TFEM3 D program to solve the dam'S displacement and find tlle dam,s deformation rule.This rule is accordant with the regression,S resuIt.

本文主要针对运行期间库水位变化很小、坝体的位移主要受温度变化影响的中小型混凝土坝，结合工程实例，采用逐步回归的方法对垂直位移原型观测资料进行分析，建立回归方程，分析坝体位移与水压、温度、时效之间的关系以及位移变化规律，分析结果坝体位移只与温度有关，而基本上不受库水位变化和时效的影响；根据有限元原理推求了混凝土坝准稳定温度场公式和温度应力公式，利用FORTRAN语言编制出QTP准稳定温度场程序和TFEM3D位移场程序，对大坝的温度场和位移场进行计算，求出坝体结点的变温值和坝体结点位移值以及单元应力分量，分析得到大坝的变形规律与实测资料以及回归统计变形规律一致，说明对坝体准稳定温度场的研究是正确的。

The ray theory of geometric optics was applied to visually investigate the propagation of quasi stationary waves in time mean basic flow and interpret the zonal nonhomogeneity.

应用几何光学中的射线理论，直观地讨论了准定常波在时间平均基流中的传播，解释了定常波传播的纬向非均匀性。

PEIPAH remained quasi-stationary in the past 24 hours, but generally drifting northwestwards.

琵琶於过去 24 小时移动缓慢，但大致向西北移动。

Modeling of transformer winding for very fast transient voltage simulation based on quasi- stationary electromagnetic field.

基于准静态电磁场的变压器线圈中特快速暂态仿真建模。

First, transfer the test cycles from automobile condition to engine condition; second, according to the work and emission characters of nonturbocharged for low pressure turbocharged diesel, assume that transition process is quasi stationary one and diesel temperature rises linearly in cold starting period.

为实现这个方法，首先由计算得到汽车工况法测试循环对应的发动机工况，然后根据作为对象发动机的非增压柴油机的工作及排放特点，假定过渡过程按准稳态进行、柴油机冷起动时温升呈线性，在稳态模型基础上，增加输入层神经元和表征发动机热力状态变化的学习样本，建立了内燃机冷起动后暖机过程排放预测模型。

It was a typical South China quasi-stationary precipitation which was associated with the stationary front, low-level wind shear and low-level jet.

这是建立在静止锋、低空切变线和低空急流等系统基础上的一次典型的华南准静止锋降水。

Even for speech signals, their behavior is not static; at best they can be considered quasi-stationary.

按照音频在计算机内部表示形式的不同，音频可以分为自然音频和合成音频两类。

Voiced speech signals show during certain time intervals almost periodic behavior. Therefore, we can consider these signals as quasi-stationary signals for around 30 milliseconds.

语音信号在一定时间段内有近似周期性的行为，因此，可以把这些信号看做是30ms的半静止(quasi-stationary)信号。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。