selective radiation

简明释义

选择辐射

英英释义

例句

1.The research focused on the impact of selective radiation on cellular structures.

研究集中于选择性辐射对细胞结构的影响。

2.The scientist conducted an experiment to observe the effects of selective radiation on plant growth.

科学家进行了一个实验，以观察选择性辐射对植物生长的影响。

3.Engineers are developing technology that utilizes selective radiation for more efficient solar panels.

工程师正在开发利用选择性辐射的技术，以提高太阳能电池板的效率。

4.In medical imaging, selective radiation is used to target specific areas of the body for clearer results.

在医学成像中，选择性辐射用于针对身体特定区域以获得更清晰的结果。

5.The concept of selective radiation is crucial in understanding how different materials absorb energy.

理解不同材料如何吸收能量的过程中，选择性辐射的概念至关重要。

作文

The concept of selective radiation refers to the phenomenon where certain wavelengths of light are emitted or absorbed preferentially by materials, leading to various applications in science and technology. This principle is fundamental in fields such as astronomy, environmental science, and even in the development of modern technologies like solar panels and LED lights.In astronomy, selective radiation plays a crucial role in understanding the composition and temperature of celestial bodies. For instance, stars emit light across a spectrum of wavelengths, but they do so selectively based on their temperature. By analyzing the light received from a star, astronomers can determine its surface temperature and chemical composition. This process is known as spectroscopy, where the specific wavelengths of light are measured and analyzed. The ability to discern these selective emissions allows scientists to map the universe and understand the life cycles of stars.Environmental science also benefits from the study of selective radiation. The Earth’s atmosphere interacts with solar radiation in a selective manner, absorbing certain wavelengths while allowing others to pass through. This interaction is critical for life on Earth, as it influences climate and weather patterns. For example, greenhouse gases absorb infrared radiation selectively, trapping heat in the atmosphere and contributing to the greenhouse effect. Understanding how different gases interact with radiation helps scientists predict climate change and develop strategies to mitigate its impacts.Moreover, selective radiation is pivotal in the design and efficiency of solar panels. Solar cells work by absorbing specific wavelengths of light and converting them into electricity. The efficiency of solar panels can be significantly improved by optimizing the materials used to ensure that they absorb the most effective wavelengths. Research in this area focuses on developing new materials that can enhance the absorption of sunlight, thereby increasing the overall efficiency of solar energy systems.In the realm of lighting technology, selective radiation is utilized in the production of LED lights. LEDs emit light through a process called electroluminescence, where electrons recombine with holes in a semiconductor material, releasing energy in the form of light. The color of the light emitted is determined by the specific wavelengths produced during this process. By selecting different semiconductor materials, manufacturers can create LEDs that emit various colors, which are widely used in everything from household lighting to large-scale displays.In conclusion, the concept of selective radiation is essential in multiple scientific domains, influencing our understanding of the universe and driving technological advancements. From the study of distant stars to the development of sustainable energy solutions, the implications of selective radiation are vast and significant. By continuing to explore and harness this phenomenon, we can unlock new potentials in science and technology, paving the way for a brighter future.

“选择性辐射”这一概念指的是某些波长的光被材料优先发射或吸收的现象，这导致了科学和技术中的各种应用。这个原理在天文学、环境科学，甚至现代技术如太阳能电池板和LED灯的发展中都是基础。在天文学中，选择性辐射在理解天体的组成和温度方面发挥着至关重要的作用。例如，恒星在一个波长范围内发出光，但它们的发射是选择性的，基于它们的温度。通过分析从恒星接收到的光，天文学家可以确定其表面温度和化学成分。这个过程被称为光谱学，其中特定波长的光被测量和分析。辨别这些选择性发射的能力使科学家能够绘制宇宙地图并了解恒星的生命周期。环境科学也受益于对选择性辐射的研究。地球的大气层以选择性的方式与太阳辐射相互作用，吸收某些波长，同时允许其他波长通过。这种相互作用对地球上的生命至关重要，因为它影响气候和天气模式。例如，温室气体选择性地吸收红外辐射，将热量困在大气中，导致温室效应。理解不同气体如何与辐射相互作用有助于科学家预测气候变化并制定减轻其影响的策略。此外，选择性辐射在太阳能电池板的设计和效率中至关重要。太阳能电池通过吸收特定波长的光并将其转化为电能来工作。通过优化所用材料，显著提高太阳能电池板的效率，以确保它们吸收最有效的波长。在这方面的研究集中在开发新材料上，以增强阳光的吸收，从而提高太阳能系统的整体效率。在照明技术领域，选择性辐射被用于LED灯的生产。LED通过一种称为电致发光的过程发出光，在这种过程中，电子与半导体材料中的空穴重新结合，释放出能量以光的形式。发出的光的颜色由该过程中产生的特定波长决定。通过选择不同的半导体材料，制造商可以制造出发出各种颜色的LED，这些LED被广泛应用于从家庭照明到大型显示屏的各种场合。总之，选择性辐射的概念在多个科学领域中都是至关重要的，影响着我们对宇宙的理解，并推动着技术进步。从对遥远恒星的研究到可持续能源解决方案的发展，选择性辐射的影响是广泛而重要的。通过继续探索和利用这一现象，我们可以在科学和技术中解锁新的潜力，为更光明的未来铺平道路。