threshold energy

简明释义

阈能

英英释义

例句

1.The threshold energy (阈能) for this chemical reaction is significantly lower than previously thought.

这个化学反应的阈能（阈能）明显低于之前的预期。

2.The laser must emit photons with enough threshold energy (阈能) to excite the electrons in the material.

激光必须发出足够的阈能（阈能）的光子，以激发材料中的电子。

3.In nuclear physics, particles must possess a certain threshold energy (阈能) to initiate a fusion reaction.

在核物理中，粒子必须具有一定的阈能（阈能）才能启动聚变反应。

4.Understanding the threshold energy (阈能) is crucial for designing efficient solar cells.

理解阈能（阈能）对于设计高效太阳能电池至关重要。

5.The reaction will only occur if the input exceeds the threshold energy (阈能) required to overcome the activation barrier.

反应只有在输入超过所需的阈能（阈能）以克服活化能垒时才会发生。

作文

Understanding the concept of threshold energy is crucial in various fields of science and engineering. In simple terms, threshold energy refers to the minimum amount of energy required to initiate a particular process or reaction. This concept can be observed in different contexts, such as physics, chemistry, and even biology. For instance, in nuclear physics, threshold energy is the energy needed to overcome the binding forces holding particles together in an atom. When this energy is supplied, it can lead to phenomena such as nuclear fission or fusion, where atomic nuclei either split apart or combine, releasing a significant amount of energy in the process. In chemistry, threshold energy plays a vital role in chemical reactions. Every reaction has a specific activation energy, which is often synonymous with threshold energy. This is the energy barrier that must be overcome for reactants to transform into products. For example, in combustion reactions, the fuel must reach a certain temperature—its threshold energy—for the reaction to occur. If the energy provided is below this threshold, the reaction will not take place, highlighting the importance of reaching that critical level of energy. Moreover, in biological systems, threshold energy can refer to the energy required for biochemical processes, such as enzyme-catalyzed reactions. Enzymes lower the threshold energy required for reactions to proceed, thus facilitating metabolic processes essential for life. Without sufficient energy input, these biological reactions would stall, leading to a lack of necessary energy for cellular functions. The implications of threshold energy extend beyond scientific theories; they have practical applications in technology and industry. For example, in the field of materials science, understanding the threshold energy for breaking bonds in materials can help in developing stronger and more durable substances. Engineers can manipulate energy levels to create materials that withstand extreme conditions, such as high temperatures or pressures. Furthermore, in renewable energy technologies, such as solar panels and wind turbines, understanding the threshold energy required for efficient energy conversion is critical. Researchers are continuously working on lowering the threshold energy for these processes to enhance efficiency and make sustainable energy sources more viable. In conclusion, the concept of threshold energy is fundamental across various scientific disciplines. Whether in the context of nuclear reactions, chemical processes, biological functions, or technological advancements, understanding and manipulating threshold energy is essential for innovation and progress. As we continue to explore the intricacies of energy interactions, the significance of threshold energy will undoubtedly remain a key focus in both research and application. The journey to comprehend and utilize this concept effectively will pave the way for future discoveries and advancements in numerous fields.

理解阈能的概念在科学和工程的各个领域都是至关重要的。简单来说，阈能是指启动特定过程或反应所需的最小能量。在物理、化学甚至生物学等不同的背景中都可以观察到这一概念。例如，在核物理中，阈能是克服粒子之间结合力所需的能量。当提供这种能量时，可能会导致核裂变或聚变等现象，其中原子核要么分裂，要么结合，从而释放出大量能量。在化学中，阈能在化学反应中起着至关重要的作用。每个反应都有一个特定的活化能，这通常与阈能同义。这是必须克服的能量障碍，以便反应物转变为产物。例如，在燃烧反应中，燃料必须达到某个温度——其阈能——才能发生反应。如果提供的能量低于这一阈值，反应将不会发生，这突显了达到该临界能量水平的重要性。此外，在生物系统中，阈能可以指生化过程所需的能量，例如酶催化反应。酶降低了进行反应所需的阈能，从而促进了生命所必需的代谢过程。如果没有足够的能量输入，这些生物反应将停滞，导致细胞功能所需能量的缺乏。阈能的影响不仅限于科学理论；它们在技术和工业中的实际应用也非常重要。例如，在材料科学领域，理解材料中断裂键所需的阈能可以帮助开发更强大和更耐用的物质。工程师可以操纵能量水平，以创造能够承受极端条件（如高温或高压）的材料。此外，在可再生能源技术（如太阳能电池板和风力涡轮机）中，理解高效能量转换所需的阈能至关重要。研究人员不断努力降低这些过程的阈能，以提高效率，使可持续能源来源更加可行。总之，阈能的概念在各个科学学科中都是基础的。无论是在核反应、化学过程、生物功能还是技术进步的背景下，理解和操纵阈能对于创新和进步至关重要。随着我们继续探索能量相互作用的复杂性，阈能的重要性无疑将继续成为研究和应用的重点。有效理解和利用这一概念的旅程将为未来的发现和众多领域的进步铺平道路。