detection threshold

简明释义

探测限界

英英释义

例句

1.In medical imaging, understanding the detection threshold is crucial for identifying small tumors.

在医学成像中，理解检测阈值对于识别小肿瘤至关重要。

2.Researchers have found that the detection threshold for certain chemicals can vary significantly between different testing methods.

研究人员发现，某些化学物质的检测阈值在不同的测试方法之间可能有显著差异。

3.When testing for viruses, a low detection threshold ensures that even minimal viral loads are identified.

在病毒检测中，低检测阈值确保即使是微量病毒载量也能被识别。

4.The new sensor has a lower detection threshold for detecting pollutants, making it more effective in urban areas.

新传感器的检测阈值更低，使其在城市地区更有效地检测污染物。

5.The detection threshold of the device can be adjusted to improve sensitivity based on environmental conditions.

该设备的检测阈值可以根据环境条件进行调整，以提高灵敏度。

作文

In the realm of scientific research and technology, the term detection threshold refers to the minimum level at which a particular signal or substance can be identified amidst background noise or other interfering factors. Understanding the detection threshold is crucial in various fields, including environmental monitoring, medical diagnostics, and telecommunications. For instance, in environmental science, researchers often measure pollutants in air or water samples. The detection threshold determines the smallest concentration of a pollutant that can be reliably detected by analytical instruments. If the concentration of the pollutant is below this threshold, it may go unnoticed, leading to potential health risks and environmental degradation.In medical diagnostics, the detection threshold plays a vital role in the accuracy of tests for diseases. For example, when screening for cancer markers in blood samples, a test must have a sufficiently low detection threshold to identify early-stage cancers effectively. If the threshold is set too high, early signs of the disease may be missed, delaying treatment and worsening patient outcomes. Therefore, researchers continuously strive to lower the detection threshold of diagnostic tests, enhancing their sensitivity and specificity.Telecommunications also heavily relies on the concept of detection threshold. In this field, signals are transmitted over various mediums, and the ability to distinguish between the intended signal and background noise is paramount. The detection threshold in this context refers to the minimum signal strength required for a receiver to accurately interpret the information being sent. If the signal falls below this threshold, data loss or corruption occurs, leading to communication failures. Engineers work diligently to improve systems that can operate effectively even when signals are weak, thereby lowering the detection threshold and enhancing overall communication reliability.Moreover, the detection threshold is not static; it can vary based on several factors, including the technology used, the environment in which detection occurs, and the specific characteristics of the substances or signals involved. Advances in technology often lead to lower detection thresholds, allowing researchers and professionals to detect smaller quantities of substances or weaker signals than ever before. This progress is essential for improving safety standards and ensuring that potential hazards are identified promptly.In conclusion, the detection threshold is a fundamental concept that impacts numerous scientific and technological domains. Whether in environmental monitoring, medical diagnostics, or telecommunications, understanding and optimizing the detection threshold can lead to significant advancements in our ability to detect and respond to various challenges. As technology continues to evolve, the pursuit of lower detection thresholds will remain a priority, enabling us to enhance our understanding of the world around us and improve our quality of life. By recognizing the importance of the detection threshold, we can appreciate the intricate balance between sensitivity and specificity in detection processes, ultimately leading to more effective solutions in addressing real-world issues.

在科学研究和技术领域，术语detection threshold指的是可以在背景噪声或其他干扰因素中识别特定信号或物质的最小水平。理解detection threshold在环境监测、医学诊断和电信等各个领域至关重要。例如，在环境科学中，研究人员通常测量空气或水样本中的污染物。detection threshold决定了能够被分析仪器可靠检测到的污染物的最小浓度。如果污染物的浓度低于该阈值，可能会被忽视，从而导致潜在的健康风险和环境恶化。在医学诊断中，detection threshold在测试疾病的准确性中发挥着重要作用。例如，当筛查血液样本中的癌症标志物时，测试必须具有足够低的detection threshold，以有效识别早期癌症。如果阈值设置得太高，可能会错过疾病的早期迹象，延误治疗，恶化患者的预后。因此，研究人员不断努力降低诊断测试的detection threshold，提高其灵敏度和特异性。电信也在很大程度上依赖于detection threshold的概念。在该领域，信号通过各种媒介传输，区分预期信号和背景噪声的能力至关重要。在这种情况下，detection threshold指的是接收器准确解释所发送信息所需的最小信号强度。如果信号低于该阈值，数据丢失或损坏就会发生，导致通信失败。工程师们努力改善即使在信号微弱时也能有效运行的系统，从而降低detection threshold并提高整体通信可靠性。此外，detection threshold并不是静态的；它可以根据多个因素变化，包括使用的技术、检测发生的环境以及涉及的物质或信号的特定特征。技术的进步往往导致更低的detection threshold，使研究人员和专业人员能够检测到比以往更小数量的物质或更弱的信号。这一进展对于提高安全标准和确保潜在危害及时被识别至关重要。总之，detection threshold是影响众多科学和技术领域的基本概念。无论是在环境监测、医学诊断还是电信中，理解和优化detection threshold都可以在我们检测和应对各种挑战的能力上带来重大进展。随着技术的不断发展，追求更低的detection threshold将始终是一个优先事项，使我们能够增强对周围世界的理解，提高我们的生活质量。通过认识到detection threshold的重要性，我们可以欣赏检测过程中灵敏度和特异性之间的微妙平衡，从而最终在解决现实问题方面提供更有效的解决方案。