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聚焦粒子
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  “聚焦粒子”译为未确定词的双语例句
     The techniques of auto-analysis are introduced,such as determining the focus particle imag,esetting density threshold, considering resolution and the am- plification,and the interpolation,etc.
     着重介绍自动分析全息图的方法,如聚焦粒子的判断,灰度阈值的选取,分辨率及放 大率的考虑及插值运算等。
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  相似匹配句对
     Focus
     聚焦
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     Focus
     媒体聚焦
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     The Energy of the H-particle
     H粒子的能量
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     STABILITY Of THE PERPENDICULAR MOVEMENT OF CHARGED PARTICLE IN INFIRM FOCUSING MAGNETIC FIELD
     弱聚焦磁场中带电粒子横向运动的稳定性
短句来源
     Simulation of Ion Noise in PPM Focused TWT by Particle-in-Cell Method
     周期永磁聚焦行波管离子噪声的粒子模拟
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  focused particle
A rotating chopper wheel, with two radial slits located 180o apart, intercepts the focused particle beam.
      
As explained before, Brownian motion serves as a signi cant perturbation to the focused particle phase obtained.
      
Figure 10 also shows a reduction in the focused particle velocities due to an increase of nozzle impedance caused by the presence of the focuser.
      
Inside the nozzle, Brownian diffusion certainly represents a perturbation to the sharpness of the focused particle distribution.
      
The energy of a focused particle beam is used to locally induce a chemical vapor deposition.
      


With the help of the digital image processing system as well as the corresponding software, the auto-data processing on the spray field hologram of a diesel nozzle is achieved for counting and sizing the oil dropltes.Taking and reconstructing the hologram is briefly described. The techniques of auto-analysis are introduced,such as determining the focus particle imag,esetting density threshold, considering resolution and the am- plification,and the interpolation,etc.The processed results of an off-axis ho logramare...

With the help of the digital image processing system as well as the corresponding software, the auto-data processing on the spray field hologram of a diesel nozzle is achieved for counting and sizing the oil dropltes.Taking and reconstructing the hologram is briefly described. The techniques of auto-analysis are introduced,such as determining the focus particle imag,esetting density threshold, considering resolution and the am- plification,and the interpolation,etc.The processed results of an off-axis ho logramare listed which well coincide with those obtained by other method, but the time for processing a frame of picture is much shorter. It offers a powerful means for studying the spray field of the diesel engine or other similar fields.

利用数字图象处理系统及相应的软件.实现对柴油机燃油喷雾场全息图的自动分 析.统计单位体积内油粒的大小、数目及分布.简要叙述喷雾场全息图的拍摄及再现。 着重介绍自动分析全息图的方法,如聚焦粒子的判断,灰度阈值的选取,分辨率及放 大率的考虑及插值运算等。给出了离轴雾场全息图的实际处理数据.自动分析的结果 与其它方法统计的结果符合,但时间大为缩短.为研究柴油机雾场和其它类似场合提 供了强有力的研究手段。

An automatic spray image analysing system combined with a television system, a pulsed laser and, computer techniques, has been established. Using this system, an accurate and speedy analysis of a spray can be obtained no matter what kind of droplets in the spray is, spherical or non-spnerical,transparent or non-transparent. The method based on the adaptiue threshold of a gradient image segments the droplets from the background, then TV measurement and computer vision techniques are used for feature extraution....

An automatic spray image analysing system combined with a television system, a pulsed laser and, computer techniques, has been established. Using this system, an accurate and speedy analysis of a spray can be obtained no matter what kind of droplets in the spray is, spherical or non-spnerical,transparent or non-transparent. The method based on the adaptiue threshold of a gradient image segments the droplets from the background, then TV measurement and computer vision techniques are used for feature extraution. The programms developed in this system can automatically select in-focus droplets and measure their size,aspect ratio,location and velocity. The reliability of the computer programms developed in this system has been proved by computer simulation and experiments. For a digitized image with 512x512 pixels/frame, the deviation of analysls is less than 5%,the running time of the computer,whieh is IBM-AT connected with vax-11/750, is 90 seconds/frame or so.

本文叙述一个由电视、激光和计算机构成的自动分析喷雾图像的系统。它可以精确、快速地分析喷雾图像。无论构成喷雾的粒子是透明还是不透明的,是球形还是任意复杂的形状,都能进行分析。能自动挑选出聚焦的粒子并测出它们的大小、形状、位置和速度。计算机仿真和对实际图像的分析都证明所用的分析方法是准确、可靠的。这种图像分析系统对分析各种喷雾图像是可行的,优点是明显的。对512×512个像元的图像,分析误差为5%左右。

A new method of nanocontact fabrication for Adreev reflection measurement based on the nanopore method using a SiN membrane with focused ion beam technique is presented.With this method,controllable,clean,tensionless nano-contacts for spin polarization probing can be obtained.Measurements of the fabricated samples show complicated spectral structures with a zero bias anomaly and dip structures from quasipartical interactions.A control sample of Co_40Fe_40B_20 is measured with Nb tip method.None of the measured...

A new method of nanocontact fabrication for Adreev reflection measurement based on the nanopore method using a SiN membrane with focused ion beam technique is presented.With this method,controllable,clean,tensionless nano-contacts for spin polarization probing can be obtained.Measurements of the fabricated samples show complicated spectral structures with a zero bias anomaly and dip structures from quasipartical interactions.A control sample of Co_40Fe_40B_20 is measured with Nb tip method.None of the measured spectra can be explained satisfactorily by present theory.Further analysis of the contact interface and a more complete theory are needed to extract a reliable spin polarization message with the point contact Andreev reflection method.

提供了一种用于安德鲁反射测量样品制备新方法.该方法采用聚焦粒子束刻蚀和磁控溅射,可以获得可控的、干净的、无应力的纳米接触用于自旋极化探测.所制备的样品中,磁性和非磁性材料样品的反射谱都表现出复杂的峰和谷结构,这些结构可能源于与界面相关的零偏压反常以及与激发态相关的准离子相互作用.对另一个Co40Fe40B20合金样品采用简单的钕针尖压针方法进行了对比性测量,反射谱中没有观察到谷结构,但谱结构出现较明显的热扩展,这种热扩展可能来源于界面处的非弹性输运.所有的反射谱目前还不能由现有的理论给出令人满意的解释.利用点接触反射方法获得可靠的自旋极化信息还有赖于接触界面特征的进一步分析.而一个更切合实际的、更完善的理论成为迫切的需要.

 
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