| 1. | Possibility of using periodic structure permanent magnetic ring as initial energy source for a magneto - cumulative generator 用周期铁磁结构环作磁累积发生器的初始能源 |
| 2. | The hrpd , wich is designed for the study of crystal structure and magnetic structure of materials , was simulated and optimized 对高分辨粉末衍射谱仪的设计方案进行了模拟和优化研究,该谱仪主要用于材料的晶体结构和磁结构研究。 |
| 3. | On the basis of the former two - dimensions and three - components mhd numerical simulation , this paper analyses evolution of the magnetic helicity of various magnetic structures in the magnetotail 摘要在二维三分量mhd数值模拟的基础上,对地球磁尾不同类型磁结构的形成作磁螺度分析。 |
| 4. | The various initial distributions of magnetic helicity density and the transportation of magnetic helicity flux may lead to various evolutions of magnetic helicity density in the neutral sheet region , and could result in the formation of various magnetic structures 不同的初始磁螺度密度分布和磁螺度通量输运,可以引起中性片区域磁螺度密度分布的不同演化,从而导致具有不同拓扑位形磁结构的形成。 |
| 5. | The influence on the magnetism and the electron spin resonance ( esr ) over a wide range of composition and temperature have been studied systematically . an obvious symmetric esr signal with a lorentzian lineshape in the paramagnetic regime is observed 本论文边过选择磁性离子替代,着眼点在于讨论衫杂离子的磁性效应,实验发现掺杂使样品的磁结构发生变化,且在低温时出现磁化强度峰,用掺杂离子自旋旋转对此进行了解释。 |
| 6. | We also find that the pinning phenomenon gradually disappear with thicker single layer of the [ pt / mn ] n films , and firstly prepared permalloy before the deposition of [ pt / mn ] n multiplayer more easily form anti - ferromagnetic structure than another caseo maybe this is a good way to shorten the annealing time 我们还发现随着单层厚度的增加钉扎现象逐渐消失,而且先沉积nife层,后沉积pt / mn多层膜的情形更容易获得反铁磁结构。这可能是缩短退火时间的一种好方法。 |
| 7. | Based on the i - b relation experiments of the different magnetism - collected structure parameter electromagnets and the analysis on the experimental data , a experienced formula is obtained , which can calculate the intensity of magnetization in magnetic gap of separate electromagnet with the magnetism - collected structure 通过对不同聚磁结构参数电磁铁i - b关系的系列实验和对实验数据的整理与分析,得出了有聚磁效应的分体式开口电磁铁磁隙磁感应强度计算的经验公式。 |
| 8. | From some characteristics observed , such as the short lift time , narrow frequency band , fast frequency drift , quasi - periodic pulsation , spike event and complex magnetic structure , it is considered that the radiation mechanism of these events may be principally due to the electromagnetic waves magnified directly by the instable electronic cyclotron 从它们的观测特征:短寿命,窄频带,频率快速漂移,及尖峰事件与磁结构复杂的大黑子活动区密切相关等,认为这些事件的辐射机制可能是电子回旋脉泽不稳定直接放大电磁波所致。 |