查询词典 dimensional analysis

The Doppler frequency shift and the Doppler broadening are comprehensively utilized, the narrow-band phase plate is inserted between a collimating mirror and a focusing lens of an imaging probe, thereby implementing the spatial encoding of the Doppler information, realizing the imaging requirements on the spatial high-resolution three-dimensional speed vector, combining with the Doppler OCT method which is based on the phase resolution technology to meet the high-speed and high-sensitivity measurement requirements and finally realizing the speed vector imaging with high-resolution, high-speed, high-sensitivity and large-imaging range of the three-dimensional flow field of the microfluidic chip.

综合利用多普勒频移和多普勒展宽，并在成像探头的准直镜和聚焦透镜之间插入窄带相位片，实施多普勒信息的空间编码，实现空间高分辨三维速度矢量的成像要求，再结合基于相位分辨技术的多普勒OCT方法则能够满足高速度高灵敏度的测量要求，最终实现对微流控芯片立体流场的高分辨率、高速度、高灵敏度、大成像范围的速度矢量成像。

A method of color three-dimensional laser scanning measurement based on the monochrome three-dimensional measurement and color digital image is presented.

提出了彩色三维激光扫描测量方法，即在单色三维激光扫描测量数据上贴合彩色的数字图像。

In order to increase the compression ratio of color video,a new coding method context-based four-dimensional matrix variable length coding was proposed according to four-dimensional matrix theory.

为了进一步提高彩色视频的压缩比，根据四维矩阵理论，提出了基于上下文的四维矩阵变长编码方法。

Systematic network teaching is a mainstream trend of reform in higher education, and boasts of the attributes of supporting multi-level system coupling, balance and compensation at two dimensional level, and coordination and interaction at multi-dimensional level.

系统性网络教学是高校教学改革的主流趋势，具有多层次支持系统耦合性、二维层面均衡互补性、多维空间协调互动性等特点。

On this basis, using the same theories and methods, we set up the three-dimensional steady-state models of ideal well productivity about a reverse double-branch horizontal wells, the three branches of radial horizontal wells, fish-bone shape three branches horizontal wells and two-dimensional four branches horizontal wells In five reservoirs respectively.

在此基础之上，运用同样的理论和方法，建立了反向双分支水平井、辐射状三分支水平井、鱼骨形三分支水平井和二维四分支水平井这四种分支水平井分别在以上五种油藏中的三维稳态理想井产能模型。

Based on studies on the characteristics of ultraviolet-visible absorption spectra, ESR and ~(13)C NMR spectra, the three dimensional fluorescence spectra of natural and treated ambers with fluorescence are studied by using the three dimensional fluorescence spectrophotometer.

基于紫外可见吸收光谱、ESR和13C NMR谱的研究基础，以三维荧光分光光度计为主要测试分析方法，对具有荧光性质的天然与处理琥珀的三维荧光光谱进行了剖析。

Meanwhile,the peaks of excitation spectra and fluorescence emission spectra are decided by examining the three-dimensional and two-dimensional fluorescence spectroscopy using ventricles and atriums with dye.

通过对含染料左心室组织的三维荧光光谱、荧光激发光谱和荧光发射光谱的测量，发现染料有两个荧光激发峰，分别是320nm和480 nm。

The effed Of three-dimensional perturbed velocities and three-dimensional perturbed current densities on the beam-wave interaction of plasma-filled dielectric Cherenkov maser is analysed by use of the self-consistent linear field theory without considering the effect Of the longitudinal guided magnetic field.The dispersion relation and the Simultaneous condition of the beam-wave interaction are derived. It is clearly shown that the instability of the interaction results from the coupling of the TM mode in t...

在无引导磁场的作用下，利用自洽线性场理论，分析了电子的三维扰动速度和三维扰动电流密度对填充等离子体的介质切伦可夫脉塞注波互作用的影响，导出了注波互作用的色散关系和同步条件，所得关系清楚地表明，其工作用不稳定性是由填充等离子体的介质筒慢波波导中的TM模与电子注模通过电子注耦合所致，并求得了电子注引起的频偏和波的增长率。

In the establishment process of three dimensional visualization model, we proposed the contour line drill hole - multi-layer face mold method.This method which improves Delaunay triangulation, is suitable for the random polygon triangulation and is easy for computer to realize. It makes three dimensional stratum visualization model of picking area realized under the limited condition.

在三维地层可视化模型的建立过程中，提出了基于等高线的钻孔—多层面模型方法，这是一种对现有的Delaunay三角剖分方法进行了改进，该方法适用于任意多边形的三角剖分，且易于计算机实现，使采区的三维地层可视化模型在有限条件下也能够实现。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory.

本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。