给出了样本数据的预处理以及学习因子、动量系数、隐含层结点数等诚然定方法。
Provided with the Algorithm to determine the pre-possessing of sample data, learning rate, momentum factor, the Number of Hidden Layer Nodes, etc.
小波神经网络的训练采用自适应调整学习率及动量系数的方法,以避免陷入局部极小值。
The self-adaptive learning rate and momentum coefficient are used to avoid the local minimum point in the training process of wavelet neural network.
这将为波动特性的动量交换系数及积分时间和长尺度提供新的信息,这些湍流特性不应被视为不变的。
The findings bring new lights in the fluctuating nature of momentum exchange coefficients and integral time and length scales. These turbulent properties should not be assumed constant.
根据动量叠加原理对多股等羽流的相互作用进行了研究,定义了三个速度修正系数和流量修正系数。
Researches the interaction of the multiple equal plumes based on the principle of momentum congruence. Defines three velocity correction coefficients and a flow rate correction coefficient.
森林冠层内耗散系数和动量通量随大气稳定度有明显变化。
Variations of the dissipation coefficient and momentum flux with atmospheric stability are found within forest CL.
在同等壁面热条件下,随着动量调节系数的增加,喷管粘性损失增大,喷管的推力和比冲都将下降;
Under the same wall heat condition, with the increase of momentum correction coefficient, viscosity loss of the nozzle increases, but thrust and specific impulse decrease.
近年来填充床反应器CFD数学模型韵几个研究重点是动量交换系数、毛细管压力以及床层空隙率的非均匀分布性。
Several of the focuses of CFD model in packed-bed reactors were studied, namely, the momentum exchange coefficient, the capillary pressure and the void fraction.
分析发现,对等离子体的有效约束是提高动量耦合系数的主要原因。
It is found that effectively confined plasma expansion is the main reason for the enhancement of the momentum-coupling coefficient.
本文详细介绍了喷淋液滴的一些动力学参数:(1)液滴动量喷淋的最大动量和体积流量与流量系数有关。
The paper analyse some controlling parameters of sprinkler water droplets: (1) maximum spray momentum the maximum spray momentum is relevant to volume flux and flux coefficient.
气膜孔流量系数随动量比的增大而增加,在小动量比下,影响尤为明显;
The film hole flow coefficient is increased with momentum ratio, especially when momentum ratio is small.
本文还讨论了与区间多项式稳定性相关的一个重要问题,即稳定多项式系数的最大摄动量问题,给出三种分析方法。
The perturbation ranges of the coefficients of Hurwitz polynomials, which is related to interval polynomial stability, are discussed, and three analysis methods are proposed.
文中还对湍流热量交换系数、湍流动量交换系数与理查孙数的日变化关系进行了讨论。
Finally, the relationship between the turbulent heat and momentum exchange coefficient and the diurnal variation of the Richardson number is discussed.
实验中还发现,金属小球和非金属小球的动量耦合系数随脉冲焦斑直径的变化趋势完全不同。
It is also evident that for metallic and non-metallic microbeads the momentum coupling efficiency has different variation tendencies versus the focused beam spot diameter.
实验测得的动量耦合系数和能量转换效率均随脉冲宽度的减小而增大。
It is found that both the momentum coupling efficiency and the overall energy conversion efficiency from light energy to kinetic energy are greater for shorter laser pulses.
采用特征线关系数值求解质量、动量和能量方程。
The characteristic relationship is applied to solve the governing equations of mass, momentum and energy for each control volume.
根据气动力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the begin point of increased suddenly fluctuating value of aerodynamic coefficients.
本文在一元蒸汽凝结流动量方程中引入了滑移系数B,考虑两相滑移的影响。
The slip coefficient B is introduced in momentum equation of one dimensional nucleating flow.
根据升力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the beginning point where the fluctuating values of aerodynamic coefficients are increased suddenly.
根据升力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the beginning point where the fluctuating values of aerodynamic coefficients are increased suddenly.
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