结果表明,不同角度圆锥口模挤出过程中,熔体在收敛流道受到拉伸流变,导致强烈的入口弹性效应,表现出熔体在不同角度圆锥口模挤出时有不同的挤出胀大比。
The results show that the extensional flow of melt in convergent die results in intense entrance elastic effect and distinct extrusion swell in conical die with different angles.
然而,在实际应用中,随着子带数目增加而增加的收敛速率却最终受限于不理想的滤波器组和有限字长效应。
However, in practice, the convergence improvement gained by increasing the number of subbands is ultimately limited by nonideal filter Banks and finite-word-length effects.
流体力学控制方程的数值求解过程中,当网格加密、粘性效应强或来流马赫数低的时候,流场收敛非常缓慢。
When the number of grid is very great or viscous effects dominates or sometimes the speed of flow is low, the rate of convergence slows down dramatically, resulting in inefficient solution technique.
研究了地下洞室围岩的时间效应变形特性,提出了分析围岩时间效应收敛变形的一种新方法。
A new method for analyzing the time-dependent convergence deformation of the underground surrounding rock is presented.
要准确计及电子相关效应,还需通过作更高阶展开,以考察级数的收敛性。
To estimate more accurately the electron correlation effects, one has to calculate to higher orders and check he convergency of the series.
结果表明,圆锥短口模挤出过程中,熔体在收敛流道受到拉伸流变,导致强烈的入口弹性效应,表现为熔体在短口模挤出时显著的挤出胀大。
The result shows that the extensional flowing of the melt occurs in convergent die resulting in intense entrance elastic effect and distinct extrusion swell.
结果表明,圆锥短口模挤出过程中,熔体在收敛流道受到拉伸流变,导致强烈的入口弹性效应,表现为熔体在短口模挤出时显著的挤出胀大。
The results show that the extensional flow of melt in convergent die results in intense entrance elastic effect and distinct extrusion swell in conical die with different angles.
研究表明,随着合成孔径长度和信噪比的增加,ML估计误差可以很快地收敛于CRB,但存在阈值效应。
It is demonstrated that ML estimating error can converge to CRB quickly with increasing synthetic aperture length and Signal to Noise Ratio (SNR), but a threshold effect exists.
研究表明,随着合成孔径长度和信噪比的增加,ML估计误差可以很快地收敛于CRB,但存在阈值效应。
It is demonstrated that ML estimating error can converge to CRB quickly with increasing synthetic aperture length and Signal to Noise Ratio (SNR), but a threshold effect exists.
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