1) mesh wave impedance
网格波阻抗
1.
Based on FDTD difference expressions and eigenfunctions of Maxwell functions in cylindrical coordinates, mesh wave impedances (MWIs) in 2D and 3D cylindrical coordinates were introduced.
从圆柱坐标系下麦克斯韦方程的时域有限差分式和特征解出发 ,引入了二维和三维圆柱坐标系下网格波阻抗 (MWI) 。
2.
In this paper,according to the theory of microwave network and the concept of mesh wave impedance,the wave reflection of non-uniform mesh for FDTD technique is analyzed,and the concept of analysis and synthesis of mesh network is presented.
本文依据微波网络理论及网格波阻抗的概念 ,对时域有限差分 (FDTD)计算中的非均匀网格反射波进行分析 ,提出了网格网络分析和综合的概念 ,分析了网格网络的反射特性 ,给出了网格网络的综合过程 。
2) acoustic impedance of p-wave
纵波阻抗
3) wave impedance
波阻抗
1.
Choice of initial wave impedance value and the multisolution of seismic trace inversion;
波阻抗初值选择与地震道反演的多解性
2.
Seismic wave impedance inversion using improved hereditary algorithm;
用改进的遗传算法进行地震波阻抗反演研究
3.
Features and control factors of wave impedance of fluvial strata;
河流相地层波阻抗特征及其控制因素
4) impedance
[英][ɪm'pi:dns] [美][ɪm'pidṇs]
波阻抗
1.
Application of impedance-constrained logging data in reservoir facies modeling;
波阻抗约束下的测井信息在储集层岩相随机建模中的应用
2.
Experience and skill of constructing low frequency components in impedance inversion.;
波阻抗反演中低频分量构建的经验与技巧
3.
Chaotic control inversion of seismic impedance parameters;
地震波阻抗参数混沌控制反演
5) acoustic impedance
波阻抗
1.
By repeated prac-tice on acoustic impedance inverse,the method can take a good effect on promoting the resolution.
通过对波阻抗进行反演的实践，表明这种方法可以达到提高分辨率的效果。
2.
Applying the analog algorithm of coordinate collaboration by sequential indicating establish sedimentary microfacies model in lower Es3 of Long 10 block in Liaohe Oilfield with the probability relation of acoustic impedance and sedimentary microfacies.
以辽河油田龙10块沙三段下亚段为例,结合开发中后期密井网条件下对宽度、厚度和体积分数等各沉积微相参数的认识,利用波阻抗与沉积微相之间的概率关系,应用序贯指示同位协同模拟算法,建立了储层沉积微相模型。
3.
Through analyzing acoustic impedance volume obtained from logging constrained seismic inversion,the 3D variogram was obtained,and the distribution model of sand body wa.
首先通过对测井约束地震反演得到的波阻抗数据体分析,提取三维空间变异函数,利用具外部漂移的泛克里金模拟方法建立出砂体的分布模型;然后以此砂体模型为相控制条件,建立储层物性参数模型。
6) Acoustic impedance
声波阻抗
1.
However,the introduced signal processing approach using combined sound pressure p and vibration velocity components (V_x,V_y,V_z),which is based on constant acoustic impedance at different locations in sound waveguides,ignores the environmental effect on vector processing performance.
目前,矢量传感器在水声测量的探测技术中的应用已逐渐受到重视,但所采用的声压p和振速(Vx,Vy,Vz)联合处理技术还是建立在假定海洋波导中各位置处的声波阻抗数值都相同且为实数的基础上,而海洋环境效应的作用将不同程度地导致矢量处理器性能的降低。
2.
This artical draws together theoretical models and real data to analyze the fluid properties in satured EDA media whose wallrocks are sandstone and limestone equivalently based on rock physics and the new methods of identification of fluid anomalies using acoustic impedances.
基于岩石物理学和利用声波阻抗信息识别流体异常的新方法,结合理论模型和实际资料,对砂岩和碳酸盐岩中流体饱和EDA介质进行了等效的流体分析。
3.
In Dongsha sea area, taking the logging data and seismic stack velocity of ODP Leg at well 1148 as constraint,constrained sparse spike inversion was used to obtain acoustic impedance section.
声波阻抗可以提供丰富的岩性信息。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条