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频散特性     
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  frequency dispersion
     The frequency dispersion equation of pseudo Rayleigh wave in elastic formation is presented here, and its frequency dispersion characteristics are analysed in detail.
     李鹤.弹性地层井眼中伪瑞利波的群速度.石油地球物理勘探,1997,32(6):826~831本文介绍了弹性地层中伪瑞利波的频散方程,对伪瑞利波的频散特性作了详细分析。
短句来源
     Frequency Dispersion of Vibrational Waves in Cylindrical Shells Filled with Fluid
     充液圆柱管壳中振动波的频散特性
短句来源
     Rock resistivity has frequency dispersion, which causes the variation of param-eters in Archie formula.
     岩石电阻车不仅具有频散特性,而且会因频散作用而造成阿尔奇公式中各种参数的变化。
短句来源
     Considering piezoelectric coupling,the characteristic of frequency dispersion was investigated and the transient SH wave was obtained by means of the reverberation matrix-two dimensional spectrum method in the piezoelectric composite layered structure.
     考虑压电耦合效应,通过传递矩阵-二维谱分析研究了压电复合材料层合板稳态SH波的频散特性和瞬态SH波的传播特性。
短句来源
     Moreover, we analyze the frequency dispersion of Rayleigh wave firstly, then we introduce the two methods of surface wave exploration.
     本文首先分析了瑞雷波的频散特性,并介绍了瑞雷面波勘探的两种方法。
短句来源
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  dispersion characteristics
     The frequency dispersion equation of pseudo Rayleigh wave in elastic formation is presented here, and its frequency dispersion characteristics are analysed in detail.
     李鹤.弹性地层井眼中伪瑞利波的群速度.石油地球物理勘探,1997,32(6):826~831本文介绍了弹性地层中伪瑞利波的频散方程,对伪瑞利波的频散特性作了详细分析。
短句来源
     Analysis of dispersion characteristics of ultrasonic longitudinal axisymmetric guided-waves in viscous liquid-filled pipes
     充粘液管材中超声纵向轴对称导波的频散特性分析
短句来源
     The complex permittivity ε and complex permeability μ of nickel fibers are decreased with increasing of the experimental frequency in 2-18GHz band,which represents good dispersion characteristics.
     制得的镍纤维在2~18GHz范围内其复介电常数、复磁导率随测试频率的增大而降低,表现了较好的频散特性
短句来源
     The results show that this method can prepare the density shell for Fe/Co composites with core-shell structure. Being a kind of microwave Absorber, it can improve the dispersion characteristics of the traditional micrometer Fe particles and provide a frequency band width of 7GHz for Absorbing rate above 8dB.
     结果表明:用该法制备的核壳型 Fe/Co复合材料能够实现表面包覆致密,将其作为微波吸收剂,可以改善传统羰基铁粉吸收剂的频散特性,可使吸收量大于8dB的频带宽度达到7GHz。
短句来源
     And based on the geometry dispersion characteristics of guided waves through bonding metal bars,the guided waves dispersion phenomena is simulated by a finite element software MSC/NASTRAN and the conclusion is drawn that the leveling phenomena of reflection waveforms exist in the anchoring system.
     根据锚固体系中导波的几何频散特性,利用M SC/NA STRAN有限元软件,对导波的频散现象进行了数值模拟分析,得出了锚固体系中反射波形的拉平现象.
短句来源
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  dispersion characteristic
     The integrated equivalent circuit method with step approximation and the equivalent network method are both based on the principle of "circuit", but the dispersion characteristic can only be analyzed by the equivalent network method, however, the dispersion and loss characteristics can be analyzed by the method of this paper.
     本文所提出的综合阶梯近似等效电路法与Oliner的等效网络法都是从“路”的观点入手,但是以往的等效网络法只能分析传输线的频散特性,而本文的方法不但可以分析传输线的频散特性,还可以分析其导体的损耗特性。
短句来源
     In this paper,first we analyze the frequency dispersion characteristic of Rayleigh wave and the shortcoming of the traditional method of parameter abstracting. Then we process the real data in the method of the time frequency analysis.
     本文首先分析了瑞雷波的频散特性和传统的参数提取方法的缺陷 ,然后 ,利用时频分析的方法对实际资料进行了处理。
短句来源
     The evaluation of Rayleigh wave dispersion characteristic is the key step for detecting S-wave velocity structure.
     瑞利波频散特性测试是波速结构的面波探测方法中的关键环节。
短句来源
     The results from the China-US joint surface wave investigation in 26 sites in Tangshan,China,show that the MAM has the same precision with SASW method in 83% of the 26 sites. The MAM is valid for Rayleigh wave dispersion characteristic testing and has great application potentiality for site S-wave velocity structure detection.
     在唐山26个场地进行的两种方法中美联合观测和分析结果表明,地脉动方法在83%的场地达到了与表面波谱分析方法相同的精度,是一种经济有效的场地瑞利波频散特性和波速结构测试方法。
短句来源
  dispersive characteristics
     The dispersive characteristics of the Rayleigh waves propagated in a stratified media were analyzed by a time-frequency analysis method,the Reassignment of Smooth Pseudo-Wigner Ville Distribution(RSPWVD). Theoretical simulations and experiments were implemented for the homogeneous half-space and the two-layered half-space.
     对分层介质半空间瑞利波的频散特性,用一种时频分析方法——重排的平滑伪魏格纳维尔分布(RSPWVD,Reassign- ment of Smooth Pseudo-Wigner Ville Distribution)进行了分析和研究。
短句来源
     Dispersive Characteristics of Surface Acoustic Waves for Measuring Mechanical Properties of Low-k Dielectrics Used in ULSI
     表征ULSI低介电常数互连材料机械特性的表面波频散特性
短句来源
     Relationship Between Dispersive Characteristics of Ultrasonic Guided Waves and Inner-radius-thickness Ratio of Pipes
     超声导波频散特性与管材内径-壁厚比的关系
短句来源
     It is difficult to locate defects in planar structural materials in service when both static defect and dynamic damage exist in the same structure. A new and applicable approach of planar locating is presented based on using characteristics of acoustic emission technique and recording real-time wave shape in time domain,combining dispersive characteristics of lamb wave and arrival time of different modes determined by using peak magnitude of Gabor wavelet time-frequency analysis.
     针对在役结构材料中同时存在静态和动态缺陷时难于进行缺陷平面定位的问题,利用声发射技术实时记录声发射波形时域信号的特点,结合薄板中Lamb波的频散特性和Gabor小波时频分析方法,研究并提出了一种新的实用定位方法。
短句来源
     The dispersive characteristics of three typical cases of two-layered structure in ULSI interconnect are investigated.
     研究了先进ULSI互连布线系统中广泛存在的3种分层薄膜结构上表面波的频散特性.
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  frequency dispersion
This "two-channel" pattern of a process significantly affects the kinetics of colloid macroscopic birefringence, that is the character of low-frequency dispersion of this value.
      
Analysis of the low-frequency dispersion of the dielectric parameters in AsxSe1-x amorphous layers
      
The frequency dispersion of complex permittivity of (CH4)i(H2O)n aggregates reflects the resonant behavior of polarizability depending on the applied electric field.
      
We show the behavior of σ(ω) for lightly doped polypyrrole samples at different stages of doping, and we discuss the significance of frequency dispersion effects for electrochemical measurements.
      
The effect of the electrode surface treatment on the frequency dispersion of the linear impedance of the Te-H2SO4 heterosystem is studied.
      
更多          
  dispersion characteristics
It is experimentally shown that the local flow nonuniformity leads to a change in the flow stability features, such as the frequencies of the growing oscillations, their growth rate, and the dispersion characteristics.
      
A Facility for Probe Measurements of the Dispersion Characteristics of Polycrystalline Ferrite Plates
      
A facility for probe measurements of the dispersion characteristics of polycrystalline ferrite plates is described.
      
It is shown that experimental fringe patterns enable the restoration of dispersion characteristics of polycrystalline ferrite plates within a frequency band of 2-7 GHz at magnetizing fields of 2-3.2 kG.
      
Determination of geometrical parameters of cylindrical bodies using dispersion characteristics of modes of elastic cylindrical w
      
更多          
  dispersion characteristic
A model of equivalent reflectors proposed for crystal-like structure makes it possible to obtain the dispersion characteristic in explicit form.
      
A radio-engineering approach based on the dispersion characteristic and impulse response of a radio channel is proposed to describe the dispersion distortion of complex shortwave radio signals propagating through ionospheric radio channels.
      
The dispersion characteristic and the transmission response of the proposed LT-TL are analyzed.
      
Dispersion characteristic and it's application of general transmission line equations on microstrip step structures
      
Effect of metal cladding on the modal dispersion characteristic of an annular waveguide with the guiding region section bounded
      
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  dispersive characteristics
It is found that the mean flow velocity shear leads to a nontrivial modification of the dispersive characteristics of surface gravity wave modes.
      
Dispersive characteristics of diamond in the range of hard x-ray waves
      
Particle displacements associated with these waves may be important to the dispersive characteristics of the reef environment.
      
Using ray-tracing codes, we have analyzed three different setups in which spherical mirrors are employed in conjunction with the transmission grating and have investigated in detail their dispersive characteristics.
      
Resonant wavenumber mismatch between these interacting modes can arise from the dispersive characteristics of the interacting waves and from spectral broadening due to random effects.
      
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