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相关概念视频

The Swing Equation01:21

The Swing Equation

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The Swing Equation is a fundamental tool in power system dynamics, especially for analyzing the behavior of generating units like three-phase synchronous generators. This equation emerges from applying Newton's second law to the rotor of a generator, encompassing factors such as inertia, angular acceleration, and the interplay between mechanical and electrical torques.
In a steady-state operation, the mechanical torque (Τm) supplied to the generator is balanced by the electrical torque (Τe)...
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Reinforcement

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Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
905
Distance Corrections01:15

Distance Corrections

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To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
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Kinematic Equations - I01:26

Kinematic Equations - I

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When an object moves with constant acceleration, the velocity of the object changes at a constant rate throughout the motion. The kinematic equations of motions are derived for such cases where the acceleration of the object is constant. The first kinematic equation gives an insight into the relationship between velocity, acceleration, and time. We can see, for example:
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Pulse rhythm01:30

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
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相关实验视频

Updated: Jan 29, 2026

Providing Visual Biofeedback Using Brightness Mode Ultrasound During a Golf Swing
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基于强化学习的高尔夫球摆调整框架,包括时间节奏和运动稳定性.

Dong-Jun Lee1, Young-Been Noh1, Jeongeun Byun2

  • 1Department of Embedded Systems Engineering, College of Information Technology, Incheon National University, Incheon 22012, Republic of Korea.

Sensors (Basel, Switzerland)
|January 28, 2026
PubMed
概括

本研究介绍了高尔夫球摆正的强化学习框架,重点关注时间节奏和稳定性. 人工智能生成的校正比以前的方法更流,更协调,增强动态关节运动.

关键词:
靠近政策优化 靠近政策优化的速度-DTWW.高尔夫球摇摆的纠正方法基于姿势的运动分析.强化学习是一种强化学习.时间节奏 时间节奏

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科学领域:

  • 体育 生物力学 运动 生物力学
  • 人工智能的人工智能
  • 机器人技术 机器人技术 机器人技术

背景情况:

  • 现有的高尔夫球摇摆分析往往错过了关键的时间动态,如节奏和速度过渡.
  • 框架相似的姿势相似性未能捕捉到有效的摆动纠正所必需的协调,全身运动.

研究的目的:

  • 开发一种强化学习 (RL) 框架,用于生成框架级高尔夫球摆正.
  • 将时间节奏和生物力学稳定性整合到自动摇摆分析和校正中.

主要方法:

  • 制定了高尔夫球摆正作为一个使用近接政策优化 (PPO) 优化的顺序决策问题.
  • 设计了一个多期奖励功能,包括姿势准确性,增量改进,稳定性和节奏 (速度-DTW).

主要成果:

  • 与静态姿势基线相比,基于RL的方法产生了更平滑,时间连贯的校正.
  • 节奏意识奖励显著改善了动态关节运动 (手腕,肩膀),同时保持了下半身的稳定性.
  • 修正后的轨迹与专家在空间对齐和时间的模式相匹配.

结论:

  • 在RL中明确纳入时间节奏对于现实的和有效的高尔夫球摆正至关重要.
  • 拟议的框架为动态体育运动中的自动化专家级教练系统提供了基础.
  • 这种方法通过考虑运动的全部时间序列来增强生物力学分析.