相关实验视频

Updated: Jul 23, 2025

Trajectory Data Analyses for Pedestrian Space-time Activity Study
16:14

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

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基于流动的时空结构预测运动动态

Mohsen Zand, Ali Etemad, Michael Greenspan

    IEEE transactions on pattern analysis and machine intelligence
    |July 18, 2023
    PubMed
    概括

    MotionFlow引入了条件规范流 (CNF) 来建模复杂的时空数据. 这种新的方法有效地捕捉了各种预测任务的高维数据集的变化.

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    Temporal Ordering of Dynamic Expression Data from Detailed Spatial Expression Maps

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    Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow13:02

    Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

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    相关概念视频

    Relative Motion Analysis - Velocity01:24

    Relative Motion Analysis - Velocity

    A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
    When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
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    Relative Motion Analysis using Rotating Axes01:25

    Relative Motion Analysis using Rotating Axes

    Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
    However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
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    Absolute Motion Analysis- General Plane Motion01:24

    Absolute Motion Analysis- General Plane Motion

    Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
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    Relative Motion Analysis using Rotating Axes-Problem Solving01:29

    Relative Motion Analysis using Rotating Axes-Problem Solving

    Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
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    Relative Motion Analysis - Acceleration01:10

    Relative Motion Analysis - Acceleration

    A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
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    Relative Motion Analysis using Rotating Axes - Acceleration01:22

    Relative Motion Analysis using Rotating Axes - Acceleration

    Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
    Time differentiation is...
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