excitation threshold

简明释义

激励阈值

英英释义

例句

1.The excitation threshold 激发阈值 for this semiconductor material is crucial for its application in electronic devices.

这种半导体材料的激发阈值 excitation threshold对其在电子设备中的应用至关重要。

2.In quantum mechanics, particles need to reach a certain excitation threshold 激发阈值 to transition to a higher energy state.

在量子力学中，粒子需要达到某个激发阈值 excitation threshold才能过渡到更高的能态。

3.The laser's output power must exceed the excitation threshold 激发阈值 to achieve efficient lasing.

激光器的输出功率必须超过激发阈值 excitation threshold才能实现高效的激光发射。

4.Researchers are studying the excitation threshold 激发阈值 to improve the efficiency of lasers.

研究人员正在研究激发阈值 excitation threshold以提高激光的效率。

5.Understanding the excitation threshold 激发阈值 can help optimize the performance of photovoltaic cells.

理解激发阈值 excitation threshold可以帮助优化光伏电池的性能。

作文

In the realm of physics and biology, the term excitation threshold refers to the minimum level of energy required to elicit a response from a system. This concept is crucial in understanding various phenomena, from neuronal firing in the brain to the behavior of atoms and molecules under different conditions. When we discuss the excitation threshold, we are often dealing with the point at which a particular stimulus causes a significant change in the state of a system. For instance, in neuroscience, neurons require a certain amount of stimulation to reach their excitation threshold and fire an action potential. If the incoming signals do not meet this threshold, the neuron remains inactive, illustrating the importance of this concept in cellular communication.The idea of an excitation threshold can also be applied to the field of chemistry. When atoms absorb energy, they may move from a ground state to an excited state. The excitation threshold in this context is the specific amount of energy that must be absorbed for the electrons in an atom to transition to a higher energy level. This principle is fundamental to understanding how light interacts with matter, leading to phenomena such as fluorescence and phosphorescence. Without reaching the appropriate excitation threshold, these processes cannot occur, which highlights the significance of this concept across different scientific disciplines.Moreover, the excitation threshold is not limited to natural sciences; it is also relevant in engineering and technology. For example, in electronic circuits, components like transistors have specific excitation thresholds that determine when they will switch on or off. Understanding these thresholds allows engineers to design more efficient systems and devices. By ensuring that the input signals meet the necessary excitation threshold, engineers can optimize performance and prevent failures in electronic equipment.In everyday life, we encounter the notion of an excitation threshold in various forms. Consider the experience of listening to music. The sound waves produced by an instrument or voice must reach a certain volume level to be perceived by our ears. This auditory perception relies on the excitation threshold of the hair cells in our inner ear. If the sound is too soft, it does not stimulate these cells sufficiently, and we cannot hear it. This example illustrates how the concept of excitation threshold permeates our daily experiences, influencing how we interact with the world around us.In conclusion, the excitation threshold is a fundamental concept that spans multiple fields of study, including physics, biology, chemistry, and engineering. It represents the critical point at which a stimulus leads to a significant response within a system. Whether in the firing of neurons, the absorption of light by atoms, or the operation of electronic devices, understanding the excitation threshold is essential for both scientific inquiry and practical applications. As we continue to explore the intricacies of the natural world and technological advancements, the significance of the excitation threshold will undoubtedly remain a key focus in our understanding of complex systems.

在物理学和生物学领域，术语激发阈值指的是引发系统反应所需的最低能量水平。这个概念在理解各种现象中至关重要，从大脑中的神经元放电到原子和分子在不同条件下的行为。当我们讨论激发阈值时，我们通常处理的是某一特定刺激导致系统状态发生显著变化的临界点。例如，在神经科学中，神经元需要一定量的刺激才能达到其激发阈值并发出动作电位。如果传入信号未能达到这一阈值，神经元将保持不活跃，这突显了这一概念在细胞通信中的重要性。激发阈值的概念也可以应用于化学领域。当原子吸收能量时，它们可能会从基态转变为激发态。在这种情况下，激发阈值是必须吸收的特定能量量，以便原子中的电子过渡到更高的能量水平。这个原理是理解光与物质相互作用的基础，导致荧光和磷光等现象的发生。如果没有达到适当的激发阈值，这些过程就无法发生，这突显了这一概念在不同科学学科中的重要性。此外，激发阈值不仅限于自然科学；它在工程和技术中也具有相关性。例如，在电子电路中，像晶体管这样的组件具有特定的激发阈值，决定了它们何时开关。理解这些阈值使工程师能够设计更高效的系统和设备。通过确保输入信号达到必要的激发阈值，工程师可以优化性能并防止电子设备的故障。在日常生活中，我们以各种形式遇到激发阈值的概念。考虑听音乐的体验。乐器或声音产生的声波必须达到一定的音量水平才能被我们的耳朵感知。这种听觉感知依赖于我们内耳毛细胞的激发阈值。如果声音太小，就不足以有效刺激这些细胞，我们就听不到。这一例子说明了激发阈值的概念如何渗透到我们的日常体验中，影响我们与周围世界的互动。总之，激发阈值是一个基本概念，跨越多个研究领域，包括物理学、生命科学、化学和工程。它代表着刺激导致系统内显著反应的关键点。无论是在神经元的放电、原子对光的吸收，还是电子设备的操作中，理解激发阈值对于科学探究和实际应用都是至关重要的。随着我们继续探索自然世界的复杂性和技术进步，激发阈值的重要性无疑将继续成为我们理解复杂系统的关键焦点。