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空间定域
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     We obtain the characteristics of non-Maxwellian distribution and give a qualitative explanation of the sudden change of nonthermal emission, the pitch-angle and the local distribution of runaway electron beam. Runaway behavior of low density discharge in the HL-1 tokamak has been studied.
     计算结果和实验的比较可以对非平衡态电子速度分布,高能电子螺距角,以及逃逸电子的空间定域,非热辐射的时间突变作出详细的解释,由此对HL-1托卡马克低密度放电条件下的逃逸行为进行了研究。
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     SPACE
     空间
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     Notes on Generalized Q Spaces
     推广的Q空间
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     Static Voltage Stability Region in Cut-set Power Space of Power System
     电力系统割集功率空间静态电压稳定域
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     Static Voltage Stability Region in Injection Power Space of Power Systems
     电力系统注入功率空间的静态电压稳定域
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  spatial localization
Spatial Localization of Interactions between Activating Additives during Chemostimulated Thermal Oxidation of GaAs
      
Nonlinear effects of finite velocity and spatial localization of the shear perturbations are discussed.
      
On the spatial localization of the laminar boundary layer in a non-Newtonian dilatant fluid
      
This was first mentioned in [2] where, however, it was mistakenly asserted that boundary layer spatial localization does not take place in all dilatant fluids and is absent in so-called "hardening" dilatant fluids.
      
It is demonstrated that, in the case of using a single focusing array, the spatial localization of heated objects depends on the size of the source.
      
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Basing on the Lorentz covariance and SO (4, 2) symmetry of Dirac theory, anobvious covariant theory of spinor gauge field is obtained by expanding the Lorentztransformation to general coordinate tranformation and making the SO (4, 2) to belocalized. We have proved that, by the gauge independence, the symmetrygroup is reduced to the localized rotation of Lorentz group in Riemann space automa-tically. So our theory is the natural generalization of Dirac theory in curved space.We have also proved that, the spinor...

Basing on the Lorentz covariance and SO (4, 2) symmetry of Dirac theory, anobvious covariant theory of spinor gauge field is obtained by expanding the Lorentztransformation to general coordinate tranformation and making the SO (4, 2) to belocalized. We have proved that, by the gauge independence, the symmetrygroup is reduced to the localized rotation of Lorentz group in Riemann space automa-tically. So our theory is the natural generalization of Dirac theory in curved space.We have also proved that, the spinor gauge field can not appear in flat space, thenthe existence of spinor gauge field is closely related to the curvature. The differencesbetween our theory and Utiyama and Kibble theories are also discussed, and it is poin-ted out that the so-called scalar property of Dirac wave function in general relativity isa misunderstanding caused by the unobvious covariance of those theories, even inthose theories We can not distinguish what is the genuine gauge. field and what is theeffect of the structure of space. In obvious covariant theory this paradox disappears.

本文基于Dirac理论的Lorentz协变和SO(4,2)对称,将Lorentz变换推广到广义坐标变换和定域SO(4,2)变换,建立了一个明显协变的旋量规范场理论。我们证明了:由理论规范无关要求,对称群自动退化为Riemann空间的定域Lorentz转动,因此本理论是Dirac理论在Riemann空间最自然的推广;旋量规范场的存在和时空弯曲紧密相关,平直空间不能有旋量规范场。我们还讨论了本理论和Utiyama理论以及Kibble理论的区别,并指出过去所谓Dirac波函数在广义相对论中表现为标量的问题,是由于所用理论形式非明显协变而引起的误解,这种非明显协变形式使我们看不清楚什么是规范场什么是时空结构效应。用明显协变的理论,使这一问题得到解决。

The fundamental principle of MRI is introduced briefly , and Compared with the traditional NMR spectroscopy. The recent research works of MRI are listed, and a diagram of research works system is made by the author. Particu-lar emphases are placed on problems of fast imaging, high spacial resolution and contrast enhancement, etc. The problems of developing the chemical shift imaging and spectroscopic imaging are reviewed in detail. A new field of "Spacial Localized Spectroscopy" is discussed with the author's...

The fundamental principle of MRI is introduced briefly , and Compared with the traditional NMR spectroscopy. The recent research works of MRI are listed, and a diagram of research works system is made by the author. Particu-lar emphases are placed on problems of fast imaging, high spacial resolution and contrast enhancement, etc. The problems of developing the chemical shift imaging and spectroscopic imaging are reviewed in detail. A new field of "Spacial Localized Spectroscopy" is discussed with the author's viewpoint in detail, also.

简短地介绍了核磁共振成象的基本原理,并与传统的核磁共振波谱学进行了比较。列举了当前核磁共振成象研究工作的各个方面,并给出了研究工作体系表。对其中关于快速成象,提高空间分辨率以及对比度增强剂等问题做了重点评述。详细评述了化学位移成象及波谱成象的发展。对空间定域波谱学的发生、它与核磁共振成象及核磁共振波谱学的关系以及将来的发展等问题,提出了作者的观点。

This paper describes in detail the features of electron cyclotron emission in different phases of the HL-1 tokamak discharge. The ECE spectra are calculated using a simple slab model and compared with the experiments. We obtain the characteristics of non-Maxwellian distribution and give a qualitative explanation of the sudden change of nonthermal emission, the pitch-angle and the local distribution of runaway electron beam. Runaway behavior of low density discharge in the HL-1 tokamak has been studied.

本文描述了HL-1托卡马克中,各放电阶段的电子回旋辐射谱的特点。文中用简单的物理模型计算了这种辐射谱。计算结果和实验的比较可以对非平衡态电子速度分布,高能电子螺距角,以及逃逸电子的空间定域,非热辐射的时间突变作出详细的解释,由此对HL-1托卡马克低密度放电条件下的逃逸行为进行了研究。

 
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