Meantime, the ingenious unit to test the frequency coefficient was developed.
同时,还研制了结构巧妙的频率温度系数测试装置。
According to local gradient information, wavelet low frequency coefficient obtained from source image is selected to compose respective low frequency coefficient of the fused image.
根据局部梯度信息对源图像的小波低频系数进行选择,获取融合图像的对应低频系数。
Search efficiency is improved by embedding synchronous signals into time domain. Better robustness is achieved by hiding the watermarking into the low frequency coefficient of DWT domain.
同步信号嵌入时域,以提高搜索效率,水印隐藏在离散小波变换域的低频系数中,以达到较好的鲁棒性。
By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.
最后给出数值结果,表明磁场的变化对振动频率及衰减系数的影响。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
最后自动组成空间刚体自由振动微分方程的系数阵,并计算出刚体的自振频率和振型。
Pressure data were analyzed by wavelet transform in wavelet domain. Frequency band energy spectrum and intensity index of ISW based on wavelet coefficient were obtained.
通过基于子波的分析方法,对压力数据进行了分析,获得了基于子波系数的频带能量谱和冲击波强度指数。
A simple formula for finding basic frequency is derived by use of relation of root and coefficient, and an example is enumerated to illustrate its application.
对特征方程利用根与系数的关系,导出了一个计算基频的简便公式,并结合实例说明其有一定的实用价值。
The variety of bowknot Angle and dissipative Angle with viscosity coefficient of pore fluid and cyclic loading frequency is consistent with the results of other experiments.
在同一岩石中蝴蝶结张角和耗散角随孔隙液体黏滞系数和加载频率的变化规律与以往其他实验的结果是一致的。
When sound frequency increases, the sound absorbent coefficient of porous aluminum alloy increases.
当声波频率增加时,多孔铝合金的吸声系数增大。
The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used, and the attenuation slope increases with the void content.
结果表明:超声衰减系数与频率之间存在线性关系,而且其斜率随孔隙率的增大而增大。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60,且材料的中低频吸声性能优良。
The capacitor coupling circuits are applied in the high frequency circuit. It concern the coupling coefficient that the resonance property and frequency property.
在高频电路中,有时用到电容耦合回路,其调谐特性和频率特性与耦合系数直接相关。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
在实际操作过程中,选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
Proposals for formulas of mode of vibration and frequency, figures for distribution of acceleration coefficient and scope of application are rationally suggested.
根据试验结果,提出合理的振型、基频建议公式和加速度分布系数建议图形及大圆筒结构适用范围。
A frequency bias coefficient setting technique is proposed by analyzing the investigative status abroad and AGC performance in China.
在分析国外研究状况及中国AGC实际运行的基础上提出了一种频率偏差系数确定方法。
By which linear and nonlinear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper.
利用该方法对非线性频响函数进行估计,并利用了最小二乘法对模型的非线性刚度系数和非线性阻尼系数进行了优化。
The attenuation coefficient decreases with increasing of frequency and the gas density.
衰减系数随频率增加而减小,并且随密度增加而减小。
This paper first presents an experimental procedure to analyze wall surface heat transfer process and derive wall surface heat transfer coefficient by frequency spectral analysis method.
首次提出了用频率谱分析法分析墙体表面换热过程及推导墙体表面换热系数的实验方法。
A modifying coefficient of load frequency is used to describe the effect of load frequency on fatigue behavior in ultrasonic fatigue testing.
采用一个超声加载频率修正系数对超声疲劳性能试验中载荷频率对疲劳性能的影响进行修正。
In a certain medium structure, the echo energy transmission coefficient changing with the ultrasonic testing frequency is studied and the maximum magnitude is obtained.
得出了在被检测结构一定的条件下,大的回波能量透射系数对应有一最佳检测频率。
The variation of temperature coefficient of resonator frequency with tolerance factor was discussed.
分析了谐振频率温度系数随容忍因子的变化关系。
Based on mechanic equivalent circuit of the longitudinal ultrasonic horn, the resonance frequency and the amplitude magnification coefficient of three kinds of loaded horns are studied.
在纵振型变幅杆等效电路的基础上,研究了三类负载超声变幅杆的共振频率与放大系数。
We usually take the coefficient 1.25 times the average torque as the low frequency maximum torque to calculate the low frequency braking voltage.
矿井提升绞车在计算低频制动电压时,通常采用低频最大力矩是平均力矩1.25倍的折算系数。
The article introduced methods of drilling shaker dynamic measurement based on IVC, taking damping coefficient, natural frequency and vibration model as examples.
并以振动筛阻尼系数、固有频率和振型为例,介绍了基于智能控件化虚拟仪器技术的钻井振动筛动态特性检测方法。
The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
Influence of factors on fundamental frequency such as tapering coefficient, counterweight on tower top and elastic support were discussed.
分析了附加质量、变截面系数和弹性约束等因素对结构基频的影响。
To study the influence of rotary inertia on gear flowmeter natural frequency, keep damping and leakage coefficient as constant.
结果表明:与增大泄漏系数、阻尼系数相比,减小转动惯量可以明显的提高流量计的频率响应。
Using the function between the porosity and the diffusion coefficient and frequency in the diffusion impedance, the finite diffusion model evaluated the porosity.
有限扩散模型则利用孔隙率与扩散系数和频率间的函数关系测定;
The influence of the water inside and outside of the pipe pile on the frequency is investigated and a coefficient is obtained from experiment.
关于管桩内外水体对频率的影响,文中给出用实验方法求得的影响系数。
The influence of the water inside and outside of the pipe pile on the frequency is investigated and a coefficient is obtained from experiment.
关于管桩内外水体对频率的影响,文中给出用实验方法求得的影响系数。
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