兰姆位移是电子与质子组分夸克相互作用的结果,这一现象被描述为量子电动力(QED)。
This Lamb shift is a result of the interactions between the electron and the constituent quarks of the proton as described by QED.
这些相互作用对于占据2s和2p能级的电子有微小的不同,他们的能量位移部分的依赖于质子的半径。
These interactions are slightly different for electrons occupying the 2s and 2p energy levels and the resulting energy shift depends in part on the radius of the proton.
无论如何,μ介子氢的兰姆位移更加依赖于质子的半径,因为相对电子更加重的μ介子靠近或者时不时进入质子本身的时间也更多。
However, in muonic hydrogen the Lamb shift is much more dependent on the proton radius because the much heavier muon spends more time very near to – and often within – the proton itself.
并以其中电子经纬仪虚拟照片法观测隧道周边位移为例,分析了系统的原理、使用方法及其精度。
Using electron theodolite dummy photograph observing tunnel border displacement, as the example, the authors analyse the principle, means and precision of the system.
利用电涡流位移传感器可以研制出防水性电子数显卡尺。
A type of waterproof electronic digital calipers is devised using eddy current displacement sensor.
本工作应用背散射电子衍射技术测得产生浮突的位移在不变线方向附近。
The displacement vector for surface relief was determined to be near the invariant line direction using electron back scattering diffraction method.
通过位移谐振子变换,得到了系统中的电子态的精确解。
Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained.
这些机制是离子电荷的内部位移、电子电荷的内部位移和由于应变引起的离子性的变化。
These mechanisms are the internal displacement of the ionic charge, the internal displacement of the electronic charge and the charge in ionicity due to strain.
针对内孔零件批量快捷测量的问题,提出了基于反射式光强调制型光纤位移传感器的电子塞规测试系统。
To obtain rapidness in batch measuring of aperture, a system of electronic plug gauge, based on RIM-FODS, was put forward.
该系统由转向电子控制单元(ecu)、全液压转向器、步进电机、步进电机驱动器、角位移传感器等组成。
This system consists of steering electronic control unit (ECU), all hydraulic steering, stepping motor, stepping motor driver and angular displacement sensor, etc.
通过对铅玻璃和石英玻璃的X射线光电子能谱的详细研究,发现硼离子注入后氧和硅的结合能峰稍有位移。
Based on the study of X-ray photoelectron spectroscopy of lead glass, it is found that the binding energy peaks of oxygen and silicon slightly shifted after implantation.
同时运用电子散斑干涉方法成功地测量出试件缺陷覆盖层在受到集中力情况下的离面位移。
Then off-plane displacement field on defects under load of concentrated force was successfully measured by method of electrical speckle pattern of interferometry (ESPI).
将电子散斑测量离面位移的光路引入到高弹性连轴器挠性杆的横向弯曲变形测量中。
The out-plane route of ESPI was introduced for the displacement measurement of flexible lever.
电子散斑干涉测量技术通过在被测物体表面产生干涉条纹(载频调制条纹),分析位移场与物面高度之间的关系,可测量物面的形貌。
ESPI can measure the object, through forming a carrier pattern on the object surface (carrier pattern modulation), analyze the relation between displacement field and altitude of the object surface.
测量系统由电容式角位移传感器和电子数显部件组成。
Measuring system is made up of angular position pick up and electronic digital display.
理论和实验结果对比表明,利用电子散斑干涉术技术能够精确地测量含缺陷材料表面的离面位移。
Off-plane displacement field on defects can be accurately measured by ESPI. It is fully proved by comparison between experimental results and theoretical results.
借助于原子终态弛豫和初态电子组态效应对这种位移的机理进行了讨论。
The possible mechanisms for the energy shifts have been discussed in terms of the extra atomic relaxation and the effects in the initial state.
电子计算机利用所提供的物理和几何性质计算出结构中每一节点的位移,再由这些位移计算出力矩、剪力、轴向力和应力。
With given physical and geometrical characteristics, the displacements of each joint in the structure can be obtained with a computer.
根据电子散斑测量位移的基本原理,提出了一种测量位相物体折射率的方法。并进行了实验,通过对实验精度的分析,表明实验方法可行、结果可靠。
Advanced a way which measuring the refractive index of transparent objects on ESPI. By experiment, get the experimental method that is feasible and reliable results.
根据电子散斑测量位移的基本原理,提出了一种测量位相物体折射率的方法。并进行了实验,通过对实验精度的分析,表明实验方法可行、结果可靠。
Advanced a way which measuring the refractive index of transparent objects on ESPI. By experiment, get the experimental method that is feasible and reliable results.
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