helicity

简明释义

英[hɪˈlɪsɪti]美[hɪˈlɪsəti]

n. [物] 螺旋性

英英释义

单词用法

同义词

反义词

例句

1.A new diagnostic quantity-moisture helicity is derived from the moisture equation, and the difinition of helicity, and its influence factors are analyzed in details by the dimensional analysis.

构造了新的诊断量——水汽螺旋度，并对影响水汽螺旋度变化的因子做了分析。

2.The effect of Faraday rotation on the helicity computation using observations from the Solar Magnetic Field Telescope at the Huairou Solar Observing Station.

法拉第效应对利用怀柔磁场望远镜观测的矢量磁场计算电流螺度的影响。

3.Helicity depicts dynamic feature of fluid that is rotating while moving along the rotating direction.

螺旋度是表征流体边旋转边沿旋转方向运动的动力性质的物理量。

4.As an important physical parameter in analyzing and predicting strong convective weather, the helicity also has good indication in the forecasting of sandstorm.

结果表明：螺旋度作为强对流天气分析预报中的一个重要物理量，在沙尘暴的预报中同样具有很好的指示意义。

5.This property, often called " helicity, 'serves to differentiate the neutrino from its antiparticle."

这种性质通常称为“螺旋性”， 可以用来区分中微子和它的反粒子。

6.On the basis of vertical helicity, we define three parameters, namely, the divergence flux, moisture vertical helicity and moisture divergence flux.

在垂直螺旋度的基础上，定义了散度通量，水汽垂直螺旋度和水汽散度通量三个宏观物理量。

7.In fluid dynamics, the concept of helicity 螺旋度 is crucial for understanding the flow patterns of turbulent fluids.

在流体动力学中，helicity 螺旋度 的概念对于理解湍流流体的流动模式至关重要。

8.The helicity 螺旋度 of a vortex can indicate its strength and stability in meteorological studies.

在气象研究中，涡旋的 helicity 螺旋度 可以指示其强度和稳定性。

9.Researchers found that the helicity 螺旋度 of solar winds affects space weather significantly.

研究人员发现，太阳风的 helicity 螺旋度 对太空天气有显著影响。

10.In theoretical physics, the helicity 螺旋度 of particles helps to determine their spin characteristics.

在理论物理中，粒子的 helicity 螺旋度 有助于确定它们的自旋特性。

11.The study of helicity 螺旋度 is important for understanding the dynamics of magnetic fields in astrophysics.

对 helicity 螺旋度 的研究对于理解天体物理学中磁场的动力学非常重要。

作文

In the realm of physics and mathematics, the concept of helicity plays a crucial role in understanding the behavior of particles and waves. Helicity is defined as the projection of the spin of a particle along its direction of motion. This property is particularly significant in the study of quantum mechanics and particle physics, where the intrinsic angular momentum of particles influences their interactions and decay processes. The importance of helicity can be observed in various physical phenomena, including the behavior of photons and other fundamental particles. To better understand helicity, one must first grasp the basic principles of spin and momentum. Spin is a fundamental property of particles, akin to charge or mass. It describes the intrinsic angular momentum of a particle, which is quantized in nature. For instance, electrons possess a spin of 1/2, meaning they can exist in one of two states: spin-up or spin-down. When considering the motion of these particles, helicity becomes relevant, as it determines how the particle's spin aligns with its direction of travel. In particle physics, the significance of helicity is particularly pronounced in the interaction of particles during high-energy collisions. For example, when studying the interactions between neutrinos and other particles, scientists find that the helicity of neutrinos affects their likelihood of interacting with matter. Specifically, left-handed neutrinos are known to interact more readily than right-handed ones, a phenomenon that has profound implications for our understanding of the universe. Moreover, helicity is not limited to the realm of particle physics; it also finds applications in fluid dynamics and electromagnetism. In fluid dynamics, the concept of helicity can describe the twisting motion of fluid particles, which is essential for understanding turbulence and vortex dynamics. Similarly, in electromagnetism, the helicity of electromagnetic waves can influence their propagation and interaction with matter. As we delve deeper into the implications of helicity, it becomes clear that this concept is not merely an abstract idea but a fundamental aspect of the physical world. Understanding helicity allows scientists to predict the behavior of particles, enhance technological advancements, and uncover new phenomena in the universe. For instance, the study of helicity has led to advancements in particle accelerators, which are crucial for exploring the fundamental forces of nature. In conclusion, helicity is a vital concept that bridges various fields of science, from quantum mechanics to fluid dynamics. Its significance lies in its ability to explain the behavior of particles and waves, providing insights into the fundamental workings of the universe. As research continues to evolve, the understanding of helicity will undoubtedly lead to new discoveries and innovations, further enriching our knowledge of the physical world.

在物理学和数学领域，helicity的概念在理解粒子和波的行为方面起着至关重要的作用。Helicity被定义为粒子自旋沿其运动方向的投影。这一特性在量子力学和粒子物理学的研究中尤为重要，因为粒子的内在角动量影响着它们的相互作用和衰变过程。Helicity的重要性可以在各种物理现象中观察到，包括光子和其他基本粒子的行为。 为了更好地理解helicity，首先必须掌握自旋和动量的基本原理。自旋是粒子的基本属性，类似于电荷或质量。它描述了粒子的内在角动量，而这一量量化的性质。例如，电子具有1/2的自旋，这意味着它们可以存在于两种状态之一：自旋向上或自旋向下。当考虑这些粒子的运动时，helicity变得相关，因为它决定了粒子的自旋如何与其运动方向对齐。 在粒子物理学中，helicity的重要性在高能碰撞中粒子之间的相互作用中尤为明显。例如，在研究中微子与其他粒子的相互作用时，科学家发现中微子的helicity影响它们与物质相互作用的可能性。具体来说，左手中微子被认为比右手中微子更容易相互作用，这一现象对我们理解宇宙具有深远的影响。 此外，helicity不仅限于粒子物理学领域；它还在流体动力学和电磁学中找到了应用。在流体动力学中，helicity的概念可以描述流体粒子的扭转运动，这对于理解湍流和涡流动力学至关重要。同样，在电磁学中，电磁波的helicity可以影响它们的传播和与物质的相互作用。 随着我们深入探讨helicity的含义，显然这个概念不仅仅是一个抽象的思想，而是物理世界的一个基本方面。理解helicity使科学家能够预测粒子的行为，促进技术进步，并揭示宇宙中的新现象。例如，helicity的研究促进了粒子加速器的发展，这对于探索自然的基本力至关重要。 总之，helicity是一个重要的概念，连接着科学的各个领域，从量子力学到流体动力学。它的重要性在于它能够解释粒子和波的行为，为我们提供对宇宙基本运作的洞察。随着研究的不断发展，对helicity的理解无疑将导致新的发现和创新，进一步丰富我们对物理世界的认识。