thermion

简明释义

英[ˈθɜrmiˌɑn]美[ˈθɜrmiˌɑn]

n. [物] 热离子；热电子

英英释义

单词用法

同义词

反义词

例句

1.You can usually wear just a pair of tights or running pants made of synthetic material such as Thermion, Thinsulate, Thermax, Coolmax, polypropolene, and/or silk.

穿一件丝质或特殊面料（如Thermion, Thinsulate,Thermax,Coolmax, polypropolene等）的紧身裤或者跑步裤就可以了。

2.You can usually wear just a pair of tights or running pants made of synthetic material such as Thermion, Thinsulate, Thermax, Coolmax, polypropolene, and/or silk.

穿一件丝质或特殊面料（如Thermion, Thinsulate,Thermax,Coolmax, polypropolene等）的紧身裤或者跑步裤就可以了。

3.The efficiency of a thermionic converter relies heavily on the number of thermions emitted at high temperatures.

热电转换器的效率在很大程度上依赖于高温下发射的热电子的数量。

4.Researchers discovered that certain materials can produce more thermions when subjected to intense heat.

研究人员发现某些材料在高温下能够产生更多的热电子。

5.The principle of thermion emission is fundamental to the operation of many electronic devices.

热电子发射的原理是许多电子设备运行的基础。

6.In thermionic emission, thermions escape from the surface of a heated material.

在热电子发射中，热电子从加热材料的表面逃逸。

7.In a vacuum tube, the flow of electrons is due to the emission of thermions, which are generated by heating the cathode.

在真空管中，电子的流动是由于加热阴极产生的热电子的发射。

作文

In the realm of physics, particularly in the study of thermionic emission, the concept of a thermion plays a crucial role. A thermion is defined as a charged particle that is emitted from a heated material, typically a metal, due to thermal energy. This phenomenon occurs when the thermal energy provided to the electrons in the material surpasses the work function, which is the minimum energy required to liberate an electron from the surface of the material. The significance of thermions extends beyond theoretical physics; they have practical applications in various technologies, including vacuum tubes and electron guns.The process of thermionic emission was first observed by Thomas Edison in the late 19th century when he noticed that heating a filament caused electrons to be emitted. This discovery laid the groundwork for the development of vacuum tubes, which were essential components in early electronics. In vacuum tubes, thermions are emitted from a heated cathode and then directed toward an anode, allowing for the amplification and switching of electrical signals. This principle is foundational in the operation of many devices, including radios, televisions, and early computers.Furthermore, the study of thermions has led to advancements in materials science. Researchers have been exploring different materials that can emit thermions more efficiently at lower temperatures. By optimizing the work function of these materials, scientists aim to create better thermionic converters, which can directly convert heat into electricity. This technology holds promise for improving energy efficiency in power generation and could play a significant role in renewable energy applications.In addition to their role in electronics and energy conversion, thermions also have implications in the field of space exploration. For instance, in the vacuum of space, where traditional methods of cooling are ineffective, thermions can be utilized in thermal management systems for spacecraft. By carefully controlling the emission of thermions, engineers can regulate temperatures within spacecraft, ensuring the proper functioning of sensitive instruments and systems.Moreover, the understanding of thermions contributes to the broader field of quantum mechanics and statistical physics. The behavior of thermions can be described using Fermi-Dirac statistics, which account for the indistinguishable nature of fermions (particles like electrons). This statistical approach helps physicists predict how thermions will behave under different temperature conditions and in various materials, leading to deeper insights into the fundamental nature of matter.In summary, the concept of a thermion is integral to both theoretical and applied physics. From its historical roots in the invention of vacuum tubes to its modern applications in energy conversion and space technology, thermions illustrate the intersection of science and innovation. As research continues to evolve, the potential for harnessing thermions in new and exciting ways remains vast, promising further advancements in technology and our understanding of the universe. The journey of exploring thermions is not just a scientific endeavor but also a quest for sustainable solutions in a rapidly changing world.

在物理学领域，特别是在热离子发射的研究中，thermion 的概念发挥着至关重要的作用。thermion 被定义为从加热材料（通常是金属）中发射出的带电粒子，这种现象发生在材料中提供的热能超过了功函数时，功函数是指从材料表面释放电子所需的最小能量。thermions 的重要性不仅限于理论物理；它们在各种技术中都有实际应用，包括真空管和电子枪。热离子发射的过程最早是由托马斯·爱迪生在19世纪末观察到的，当时他注意到加热灯丝会导致电子的发射。这一发现为真空管的发展奠定了基础，真空管是早期电子设备的重要组成部分。在真空管中，thermions 从加热的阴极发射并被引导到阳极，从而实现电信号的放大和开关。这一原理是许多设备（包括收音机、电视和早期计算机）运作的基础。此外，thermions 的研究促进了材料科学的发展。研究人员一直在探索不同的材料，以便在较低温度下更有效地发射thermions。通过优化这些材料的功函数，科学家们旨在创造更好的热离子转换器，这些转换器可以直接将热量转化为电能。这项技术在提高发电能效方面具有前景，并可能在可再生能源应用中发挥重要作用。除了在电子学和能源转换中的作用外，thermions 在空间探索领域也有重要意义。例如，在太空的真空环境中，传统的冷却方法效果不佳，thermions 可以用于航天器的热管理系统。通过仔细控制thermions 的发射，工程师可以调节航天器内部的温度，确保敏感仪器和系统的正常运行。此外，对thermions 的理解还对量子力学和统计物理学的更广泛领域有所贡献。thermions 的行为可以使用费米-狄拉克统计来描述，这种统计考虑了费米子（如电子）的不可区分性。这种统计方法帮助物理学家预测thermions 在不同温度条件和各种材料下的行为，从而深入了解物质的基本性质。总之，thermion 的概念对于理论和应用物理学都是不可或缺的。从其在真空管发明中的历史根源，到其在能源转换和空间技术中的现代应用，thermions 体现了科学与创新的交汇点。随着研究的不断发展，利用thermions 的潜力在新的和令人兴奋的方式中仍然广阔，承诺进一步推动技术进步和我们对宇宙的理解。探索thermions 的旅程不仅是一项科学努力，也是应对快速变化世界中可持续解决方案的探索。