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位移原子
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  displaced atoms
     The loss induced by displaced atoms is 200 times langer than that induced by the same amount of OH~- at 1.40 μm.
     在1.40μm处位移原子引起的损耗比相同数量的OH~-引起的损耗要大200倍之多。
短句来源
     MONTE CARLO SIMULATION OF DEPTH DISTRIBUTION OF DISPLACED ATOMS IN AMORPHOUS TARGETS
     无定形中靶位移原子深度分布的Monte Carlo模拟计算
短句来源
     MONTE-CARLO STUDIES OF RADIATION DAMAGE CAU-SED BY FUSION a-PARTICLES IN THE FIRST WALL(III) DEPTH DISTRIBUTION OF DISPLACED ATOMS IN SOLIDS
     聚变α粒子对第一壁辐照损伤的蒙特-卡罗研究(Ⅲ)—— 固体中位移原子深度分布
短句来源
     Based on the binary collision approximation, the depth distributions of displasced atoms in amorphous targets induced by a particles are investigated, and the relations between the depth distributions of displaced atoms and energy deposition in solids are discussed.
     本程序采用两体碰撞近似研究α粒子轰击无定形靶的位移原子深度分布,并分析了位移原子深度分布与固体中能量沉积的关系。
短句来源
     The dependence of the incident energy and angle of a-particles, as well as the component of the target element on the depth distribution of displaced atoms are presented.
     文中给出入射α粒子能量、入射角及靶材料的改变对位移原子深度分布的影响。
短句来源
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  相似匹配句对
     Wavelength Shift of Atomic Spectral Lines
     原子光谱线位移机理的研究
短句来源
     MEAN-SQUARE DISPLACEMENTS OF ATOMS IN A SEMI-INFINITE SUPERLATTICE
     半无限超晶格的原子均方位移
短句来源
     Unusual Atoms
     反常原子
短句来源
     ATOM LITHOGRAPHY 
     原子光刻
短句来源
     AN ANALYSIS OF DISPLACEMENT
     位移分析
短句来源
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  displaced atoms
The steady-state regime of generation of excited atoms is established when the concentration of critically displaced atoms reaches a limiting value related to the criterion for glass transition in liquids.
      
The dose dependence of jc has an exponential character, jc=jc(0)exp(-kΦ), where k is related to the number of displaced atoms per neutron and is the same for the M1 and S1 films, irrespective of the irradiation temperature.
      
Complicated defect complexes with vacancies and displaced atoms, which are close to the atomic configurations of vacancy-ordered AlCu phases, can exist near the composition Cu0.875Fe0.125Al.
      
It is demonstrated that the suggested mathematical model of quasihard spheres describes fairly correctly the processes of elastic scattering of atoms in a gas medium and of displaced atoms in a solid with an almost constant rate of static simulation.
      
The coloration of biotites byα particles has been investigated as a function of the number of displaced atoms.
      
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This paper presents the effects of electron irradiation on the characteristics of single mode optical fibers doped with rare earth Er3+. The parameters of optical fibers are measured, prior to irradiation and after irradiation and annealing. It has been found that absorption loss in the wave length range of 0.80-1.60 μm is greatly lager than those of unirradiationed fibers. The irradiation induced loss obeys the following exponential laws: L_(uv) =0.342exp [E(eV)/0.166] in the range of 0.80-1.20 urn and LIR...

This paper presents the effects of electron irradiation on the characteristics of single mode optical fibers doped with rare earth Er3+. The parameters of optical fibers are measured, prior to irradiation and after irradiation and annealing. It has been found that absorption loss in the wave length range of 0.80-1.60 μm is greatly lager than those of unirradiationed fibers. The irradiation induced loss obeys the following exponential laws: L_(uv) =0.342exp [E(eV)/0.166] in the range of 0.80-1.20 urn and LIR = 2.2×104exp [-6.08E(eV)] in the range of 1.20-1.60 μm range. During annealing, the induced loss at longer wave length decreases, but that near 0.80 μm increases. Finally, the paper discusses the mechanism of loss variations. The displaced probability of oxygen and silicon atoms in electron irradiation is estimated to be 7.1×10~(-3) and 3.9×l0~(-3), respectively. The loss induced by displaced atoms is 200 times langer than that induced by the same amount of OH~- at 1.40 μm. The process of annealing of the loss essentially occurs in two steps, i.e., by neutralization of the free electron and reforming of the broken bonds.

本文介绍了掺铒(Er~(3+))单模光纤电子辐照特性,测量了辐照前后和退火后的光纤参数。发现在0.80-1.60μm范围内辐照引起的损耗很大,在0.80-1.20μm短波部分辐照损耗遵循Luv=0.342exp[E/0.166];而1.20-1.60μm长波部分遵循L_(IR)=2.2·10~4exp[-6.08E](E的单位为eV)。120℃退火60h可使长波辐照损耗减少,但0.80μm附近的损耗反而增加。最后讨论了辐照损耗的机理,估计出辐照引起氧和硅原子的位移几率分别为7.1×10~(-8)和3.9×10~(-8)。在1.40μm处位移原子引起的损耗比相同数量的OH~-引起的损耗要大200倍之多。退火能使部分位移原子复原,使损耗有所恢复。

By means of the Monte-Carlo method based on the binary collision approximation, we investigate the depth distribution of displaced atoms in solids induced by fusion α-particles. The relations between the distribution of displaced atoms and the energy deposition profiles in solids are studied. The dependence of the incident energy and angle of a-particles, as well as the component of the target element on the depth distribution of displaced atoms are presented. It is shown that the displacement damage has close...

By means of the Monte-Carlo method based on the binary collision approximation, we investigate the depth distribution of displaced atoms in solids induced by fusion α-particles. The relations between the distribution of displaced atoms and the energy deposition profiles in solids are studied. The dependence of the incident energy and angle of a-particles, as well as the component of the target element on the depth distribution of displaced atoms are presented. It is shown that the displacement damage has close relation with the deposition energy caused by ion-bombardment. Also, the displacement damage created by fusion α-particles is stainless steel (Fe0.73Cr0.18Ni0.09) is less than that in SiC.

本文用基于两体碰撞的蒙特-卡罗方法研究α粒子轰击固体靶的位移原子深度分布,并分析了位移原子深度分布与固体中能量沉积的关系。文中给出入射α粒子能量、入射角及靶材料的改变对位移原子深度分布的影响。结果表明,位移原子数与轰击离子在靶中的弹性能量损失密切相关。聚变α粒子在SiC中产生的位移损伤远小于它在不锈钢材料中的位移损伤。

A Monte Carlo code is described which simulates the displacement process and the transmissions of energetic particles in solids by ion bombardment, including the operating principle, the physics model and the computing examples. Based on the binary collision approximation, the depth distributions of displasced atoms in amorphous targets induced by a particles are investigated, and the relations between the depth distributions of displaced atoms and energy deposition in solids are discussed.

本文介绍一个模拟具有给定动能的离子在固体中传输及引起靶原子位移过程的Monte carlo程序,包括工作原理、物理模型和计算实例等。本程序采用两体碰撞近似研究α粒子轰击无定形靶的位移原子深度分布,并分析了位移原子深度分布与固体中能量沉积的关系。

 
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