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相关概念视频

Rotation of Asymmetric Top01:11

Rotation of Asymmetric Top

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By definition, a spherically symmetric body has the same moment of inertia about any axis passing through its center of mass. This situation changes if there is no spherical symmetry. Since most rigid bodies are not spherically symmetric, these require special treatment.
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
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Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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Cell division and enlargement are processes that require precise control. The control ensures that cell division cannot proceed unless the cell has grown to a specific size. A spherical, dividing cell requires an approximately 1.6X increase in its surface area to double its volume. The secretory pathway also has a significant role in cell membrane enlargement. Secretory vesicles that bud off from the Golgi apparatus and later fuse with the plasma membrane during exocytosis are a major source of...
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In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
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Basic Research in Plasma Medicine - A Throughput Approach from Liquids to Cells
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在等离子体中图像旋转.

Renaud Gueroult1, Shreekrishna Tripathi2, Jia Han2

  • 1Université de Toulouse, LAPLACE, CNRS, INPT, UPS, 31062 Toulouse, France.

Physical review letters
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PubMed
概括
此摘要是机器生成的。

科学家观察到波旋,一个拖动效应,在等离子体内的阿尔夫恩波中. 这种用光很难看到的现象是通过利用波浪来实现的.

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科学领域:

  • 等离子体物理学的物理学
  • 波浪现象是一种波浪现象.
  • 流体动力学 流体动力学

背景情况:

  • 介质对光的吸收很难被观察,因为光的速度很快.
  • 等离子体中的阿尔弗文波具有自然缓慢的群速,使其适合研究拖动效应.

研究的目的:

  • 报告第一个关于图像旋转的观测,一种波浪拖动的形式,在阿尔夫恩波中.
  • 用等离子体旋转来证明对波浪旋转的控制.
  • 为了验证波媒相互作用的理论模型.

主要方法:

  • 在等离子体内观察阿尔弗温波中的图像旋转.
  • 使用偏向电极对等离子体旋转进行受控操纵.
  • 实验结果与光拖拉理论的比较.

主要成果:

  • 在适度角频率的阿尔夫恩波中,可以实现显著的波旋.
  • 等离子体旋转直接控制了波的横结构的旋转.
  • 实验数据与理论预测相吻合,即光在同位素介质中被拖延,尽管等离子体异位素.

结论:

  • 这项研究提供了第一个关于阿尔夫恩波浪中波浪拖动的实验证据.
  • 这些发现支持光拖拉理论对磁化等离子体的适用性.
  • 这项研究提供了关于波和介质之间的角动量合的见解,并表明了新的远程旋转传感工具的潜力.