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相关概念视频

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

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A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
1.8K
Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

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A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
503
Protein Networks02:26

Protein Networks

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
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Pulse01:16

Pulse

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When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
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Pulse01:05

Pulse

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The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
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Cis-regulatory Sequences02:02

Cis-regulatory Sequences

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Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
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相关实验视频

Updated: Feb 14, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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注意引导的轨迹脉冲序列目标协会网络网络

Yiyun Hu1,2,3, Wenjuan Ren1,2, Yixin Zuo1,2

  • 1Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China.

Sensors (Basel, Switzerland)
|February 13, 2026
PubMed
概括
此摘要是机器生成的。

本研究引入了用于多卫星海上目标跟踪的注意引导网络,通过处理原始脉冲序列和增强特征表示来提高轨道关联精度. 这种新方法显著优于现有方法,特别是在密集的目标场景中.

关键词:
脉冲描述词 脉冲描述词是一个词.卫星电子信息卫星电子信息目标协会是目标协会.轨道段协会 轨道段协会

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Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks
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Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks

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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

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相关实验视频

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks
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Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks

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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

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科学领域:

  • 海上监督是什么意思?海上监督是什么意思?
  • 人工智能的人工智能是人工智能.
  • 信号处理 信号处理

背景情况:

  • 多卫星检测对于海上目标的识别和跟踪至关重要.
  • 由于卫星重访模式和目标运动导致的碎片化轨道段需要有效的轨道协会.
  • 目前的方法与本地化错误和密集,重叠的目标场景作斗争.

研究的目的:

  • 提出一个以注意力为导向的轨道脉冲序列目标关联网络 (AG-TPS-TAN),以改善多卫星轨道关联.
  • 克服现有方法的局限性,这些方法仅依赖轨道信息或统计信号参数.
  • 提高海上目标跟踪的准确性和稳定性.

主要方法:

  • 开发了一个不对称的双分支网络,处理轨道和原始电磁脉冲序列数据.
  • 整合了跟踪点意识的注意力机制,以识别关键的运动点.
  • 采用双功能融合模块,并配有组合损失功能,以提高功能一致性和可辨别性.

主要成果:

  • AG-TPS-TAN实现了很高的关联准确率:93.91%的5个目标和63.83%的50个目标.
  • 显著优于仅轨道 (TSADCNN) 和基于信号统计的方法,特别是随着目标数量的增加.
  • 在复杂的场景中表现出卓越的性能,目标密集,参数重叠.

结论:

  • 拟议的AG-TPS-TAN有效地解决了当前多卫星轨道关联方法的局限性.
  • 这种新方法在海上目标识别和跟踪的准确性和稳定性方面具有显著的优势.
  • 这项工作推动了人工智能驱动的海上监视和信号处理领域的发展.