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相关概念视频

Range00:59

Range

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The range is one of the measures of variation. It can be defined as the difference between a dataset's highest and lowest values. For example, in the study of seven 16-ounce soda cans, the filled volume of soda was measured, thus producing the following amount (in ounces) of soda:
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
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¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

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The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
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Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
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High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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Leveling Effect01:29

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In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the...
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Angle of Twist - Elastic Range01:13

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Consider a cylindrical shaft with a length denoted by L and a consistent cross-sectional radius referred to as r. This shaft undergoes a torque at the free end. The highest shearing strain within the shaft is directly proportional to the twist angle and the radial distance from the shaft axis. When the shaft behaves elastically, this shearing strain can be articulated using variables such as the applied torque, radial distance, the polar moment of inertia, and the modulus of rigidity. By...
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相关实验视频

Updated: Jan 28, 2026

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
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多个Soliton微使得超快的纳米精度测距和光子级探测.

Jiawen Zhi1, Xiaoyang Guo1, Xusheng Yang1

  • 1National Gravitation Laboratory, MOE Key Laboratory of Fundamental Physical Quantities Measurement, and School of Physics, Huazhong University of Science and Technology, Wuhan, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 27, 2026
PubMed
概括
此摘要是机器生成的。

双系统中的多个soliton微克服了单个soliton和混沌微在精确范围上的局限性. 这种方法实现了更高的效率和连贯性,使纳米测量不确定性用于各种应用.

关键词:
微型机微型机多个soliton,一个多个soliton.纳米精度的精确度.在光子级探测检测.超快的距离距离可以实现.

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相关实验视频

Last Updated: Jan 28, 2026

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科学领域:

  • 光子学和光学工程的工程.
  • 精密计量学 精确计量学
  • 量子光学是一种量子光学.

背景情况:

  • 由于其独特的特性,光学微对于精确范围非常有价值.
  • 现有的微组合状态 (单独的和混乱的) 呈现出连贯性和效率之间的权衡.
  • 这限制了它们在高精度测量系统中的实际部署.

研究的目的:

  • 为了克服单独的soliton和混乱的微组合器的局限性,以提高精确度的距离.
  • 在双系统中实施和评估多个soliton微.
  • 为了展示多个soliton在各种应用中的功能.

主要方法:

  • 在双配置中实现多个soliton状态.
  • 在最初的实验中,在两个子中使用了三个单子.
  • 采用五个soliton信号和一个单个soliton局部用于光子级距离测量.
  • 进行振动监测,物体跟踪和户外测量的实验.

主要成果:

  • 使用三个单子,在±17nm范围内实现了测量不确定性和1.43nm (2μs) 和3.42pm (500μs) 的精度.
  • 已证明光子水平范围的不确定性低于±9.5μm,精度为3.57μm (1秒) 和202nm (50秒).
  • 成功地应用了多个soliton,包括振动监测,旋转盘测量,无人机跟踪,户外距离 (~270米) 和非视线成像.

结论:

  • 双系统中的多个soliton微比单个soliton方法提供更高的精度,速度和效率.
  • 这项技术使纳米精度测距成为可能,并为光通信,光谱学和时间传输开辟了新的途径.
  • 展示的功能突出显示了在现实场景中先进光学计量学的潜力.