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耗散因子
相关语句
  dissipation factor
     By the relationships between the dissipation factor and equivalent circuit parameters, the energy losses of the PZT ceramics are computed.
     在压电机敏模块的载荷响应特性实验中,测量了压电陶瓷的各等效电路参数的载荷响应特性,并根据各等效电路参数与耗散因子之间的关系,计算了压电陶瓷耗散因子的载荷响应特性。
短句来源
     In this paper, the nonlinear partial equation with dissipation term-Burger'sequation is adopted as model equation. Linear and nonlinear computational stabilities of some three (time) level schemes which are used in numerical weather prediction are analysed, particularly, the effect of computational initial value, length of time step and the dissipation factor are discussed.
     本文以带耗散项的非线性方程——Burger方程为模型,用截谱形式的差分解代入相应的差分方程,分析了数值天气预报中常用的一类三时间层差分格式的计算稳定性问题,特别讨论了计算初值、时间步长和耗散因子对计算稳定性的影响.
短句来源
     In this paper, the nonlinear partial equation with dissipation term-Burgers equation is adopted as model equation The computational stability of two kinds of general three time level schemes and two time level schemes which are used in numerical weather prediction is analyzed, particularly, the effect of computational initial value, the length of time step and the dissipation factor are discussed. A new method for judging the computational stability is given.
     以最简申的非线性扩散波动方程Burgers方程为模型.着重分析了数值天气预报中常用的二类较普遍的三时间层和二时间层差分格式的计算稳定性问题,特别指出了计算初值、时间步长和耗散因子对计算稳定性的影响。
短句来源
     With this kind of electrolyte, by using F. B.P, the dissipation factor and the measuring current as three criteria for the measurement, and by choosing appropriate measuring voltage and etching current, the experimental results can be achieved quickly, reproducibly and reliably.
     综合利用平带电位值(F.B.P)、耗散因子和测量电流等3个测量判据,合理选取测量电压、腐蚀电流等测量参数,获得了速度快、重复性好和数据准确可靠的测试效果.
短句来源
  dissipation factors
     For the purpose of researching the mechanisms of losses in piezoelectrics, three dissipation factors, which are dielectric, mechanical and piezoelectric losses, are introduced to describe the losses.
     为研究压电材料中三种不同的损失,引入三种耗散因子(介电耗散因子、弹性耗散因子和压电耗散因子)分别用于描述介电损失、机械损失和压电损失的大小。
     Equilibrium Shapes and Tidal Dissipation Factors of Galilean Satellites
     伽利略卫星的平衡形状参数和潮汐耗散因子
短句来源
     Dissipation factors in piezoelectric materials and its variation under stress
     压电材料中的耗散因子及其随应力的变化
     According to the expressions of dissipation factors in terms of equivalent circuit parameters,the dissipation factors are obtained in stress experiments.
     在对机敏混凝土试件进行的加载实验中,通过测量埋入的压电陶瓷元件的等效电路参数,根据耗散因子同等效电路参数间的关系,得到了压电陶瓷三种耗散因子随载荷的响应特性.
短句来源
     It is shown that the dissipation factors perform some regularity with the loads.
     加载实验结果和数据误差分析表明,压电耗散因子与试件外部载荷之间存在一定的规律性和较好的稳定性.
短句来源
更多       
  consumption factor
     Results With the parameters of τ 1=0.0984,τ 2=8454.76 and C=0.0351, in low frequency domain(0~8Hz), energy consumption factor and Twirling-rotating technique were significantly affected by frequency.
     结果 取τ1 =0 .0 984 ,τ2 =84 54 .76和C =0 .0 351时 ,在低频区 ( 0~ 8Hz)能量耗散因子和捻转手法随频率变化显著 ;
短句来源
  “耗散因子”译为未确定词的双语例句
     And hence a generalized model of linear medium is build up, which is believed to be even more appropriate for describing the physical mechanism of energy dissipation of the seismic wave in stratum.
     广义线性介质中的能量耗散,一般是用耗散因子量度的。 其耗散因子往往与介质的性质有关,其次还取决于波的频率。
短句来源
     The effects of the stretch parameter and the destruction parameter on the pressure are also studied.
     本文还研究了模型中拉伸因子和耗散因子对示功图的影响。
短句来源
     The loss mechanism models are established on the hysteresis theory.
     分析了迟滞效应引起三种损失的机理,并得出了耗散因子同压电陶瓷等效电路中各等效参数的关系。
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  dissipation factor
The relative dielectric constant εr and the dissipation factor tgδ of the PZT thin films were measured with an LCR meter and were found to be 158 and 0.04-0.005, respectively.
      
The technique involves measuring the resonant frequency and Q factor of a microwave cavity containing a poly-Si specimen, on which basis the relative permittivity εr and the dissipation factor tanδ are calculated.
      
The latter statement is illustrated by a numerical example calculated at a frequency equal to the inverse relaxation time; the corresponding dissipation factor is about 0.05.
      
Frequency dependence of the dissipation factor tanδ, the permittivity ?, and the ac conductivity σac across the layers in the frequency range f=5×104-3×107 Hz was studied in layered TlGaS2 single crystals.
      
The dielectric constant and the dissipation factor of the Bi3.25La0.75Ti3O12 thin films were about 176 and 0.046 at 1 kHz, respectively.
      
更多          
  dissipation factors
The refractive index of the LAO film was 1.942 to 2.007; the dielectric constant and the dissipation factors were estimated to be 23-26 and 2.1×10-4-2.4×10-4 respectively.
      
The dielectric constants and dissipation factors of synthetic tephroite (Mn2SiO4), fayalite (Fe3SiO4) and a forsteritic olivine (Mg1.80Fe0.22SiO4) were measured at 1 MHz using a two-terminal method and empirically determined edge corrections.
      
The dielectric constants and dissipation factors of topaz, scapolite and orthoclase were determined at 1 MHz using a two-terminal method and empirically determined edge corrections.
      
BNT ceramics have very high dielectric constants and dissipation factors at low frequency and high temperature due to their high conductivity.
      
Small-case-size, high-value ceramic capacitors are known to have high dissipation factors which when used in the fabrication of RF coils could result in poor efficiency.
      
更多          
  consumption factor
Consumption factor scores of psychology journals: Scientometric properties and qualitative implications
      
The Consumption Factor has been proposed as a new measure of the significance/quality of scientific journals.
      
The results indicate a high correlation between the two component measures used to construct the Consumption Factor and a weak relationship between the Consumption Factor and other measures traditionally used to assess journal significance.
      
The air consumption factor is the percentage of total oxygen used for complete combustion.
      


In this paper, the nonlinear partial equation with dissipation term-Burger'sequation is adopted as model equation. Linear and nonlinear computational stabilities of some three (time) level schemes which are used in numerical weather prediction are analysed, particularly, the effect of computational initial value, length of time step and the dissipation factor are discussed. By means of qualitative analysis and numerical experiments, it is shown that nonlinear computational instability is prone to occur for three...

In this paper, the nonlinear partial equation with dissipation term-Burger'sequation is adopted as model equation. Linear and nonlinear computational stabilities of some three (time) level schemes which are used in numerical weather prediction are analysed, particularly, the effect of computational initial value, length of time step and the dissipation factor are discussed. By means of qualitative analysis and numerical experiments, it is shown that nonlinear computational instability is prone to occur for three (time) level schemes, especially when two-step computational initial values have opposite signs and the dissipation coefficient is very small. But the dissipation coefficient v can not be taken to be too large, otherwise a new computational instability may occur.

本文以带耗散项的非线性方程——Burger方程为模型,用截谱形式的差分解代入相应的差分方程,分析了数值天气预报中常用的一类三时间层差分格式的计算稳定性问题,特别讨论了计算初值、时间步长和耗散因子对计算稳定性的影响.利用定性分析和数值试验的方法证实这类三时间层格式有时容易出现非线性计算不稳定,尤其是两步计算初值反号和耗散系数过小的时候是如此.但是耗散系数也不能取得过大,否则也会出现计算不稳定.

From the Hooke's law and considering the objective reality, energy dissipation happens while the seismic wave propagates, in stratum, an Update has been made to the Hooke's law of classic elasticity using the differential operator type of volume expansion modulus and shearing modulus. And hence a generalized model of linear medium is build up, which is believed to be even more appropriate for describing the physical mechanism of energy dissipation of the seismic wave in stratum.

本文以Hooker定律为基本出发点,考虑地震波在地层中传播时发生能量耗散这一客观事实,利用微分算子型的体胀模量和剪切模量,修改了经典弹性力学的Hooker定律,建立了广义线性介质模型,使之更适合于描述地层中地震波能量耗散的物理机制。广义线性介质的最大特点是具有应力和应变驰豫现象。一般,应变波与应力波之间存在一位相差δ。这个位相差表征了广义线性介质的流变特征。广义线性介质中的能量耗散,一般是用耗散因子量度的。其耗散因子往往与介质的性质有关,其次还取决于波的频率。研究耗散因子有利于进行地层划分和对比:有利于进行沉积岩相的研究和油气富集区的划分。

By using a mathematical model of nonlinear dynamic system, the influence factors of equilibria, destablization and catastrophe in nonlinear movement of the axisymmetric vortex are discussed.The result shows that anomalous developments of vortices and tropical cyclones are related not only to convection and dissipation, but also to nonlinear advection of momentum, thermal flux through the lateral boundary of systems and transfer structures of sensible and latent heats on underlying surface.

本文采用非线性动力系统数学模型,探讨了轴对称涡旋运动平衡态、失稳和突变现象的影响因子。提出了低涡、台风系统扰动异变现象不仅与对流加热、耗散因子相关,而且还与系统外界热量、动量的非线性平流、下垫面的感热、潜热输送结构相关。本文还导出了系统突变相关因子的临界关系式。

 
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