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用不同的迁移移位移的无形对齐器将骨推向后的有限元分析

Jiwu Zhang1, Lili Ma2, Yuzhongxiu Ren3

  • 1Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, China.

Acta of bioengineering and biomechanics
|February 5, 2024
PubMed
概括

一个0.2毫米的位移对齐器在最初的牙运动中比0.3毫米的更有效. 这项隐形对齐器技术的研究表明,在较小的位移下,牙周带应力较少.

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π Electron Effects on Chemical Shift: Overview01:27

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An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
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