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相关概念视频

Introduction to R01:11

Introduction to R

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R is a powerful software environment for statistical computing and graphics. Originating as an implementation of the S language, developed at Bell Laboratories, R has evolved into a robust, open-source statistical software favored by statisticians and data scientists worldwide. Its comprehensive suite includes data manipulation, calculation, and graphical display capabilities, making it versatile for data analysis and visualization. Its programming language is at the core of R's...
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Interpreting R Charts01:22

Interpreting R Charts

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R chart, or range chart, is a fundamental tool in statistical process control used to monitor the variability within a process. It complements the X-bar (x̄) chart by focusing on the range of the data, rather than individual values, providing a clear picture of the process dispersion over time.
An R chart plots the range of subsets of measurements collected from a process. Each point on the chart represents the range—defined as the difference between the maximum and minimum...
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Two-Dimensional Force System01:20

Two-Dimensional Force System

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A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
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Power Expended by a Constant Force00:57

Power Expended by a Constant Force

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The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
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Fluid Pressure over Flat Plate of Constant Width01:05

Fluid Pressure over Flat Plate of Constant Width

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When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
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Fluid Pressure over Flat Plate of Variable Width01:02

Fluid Pressure over Flat Plate of Variable Width

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When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
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相关实验视频

Updated: Sep 19, 2025

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

Published on: July 26, 2022

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强力板:用于处理原始强力板时间序列数据的R包.

Raphael Hartmann1, Anton Koger2, Elisa R Straub3

  • 1University of Freiburg, Freiburg, Germany. raphael.hartmann@psychologie.uni-freiburg.de.

Behavior research methods
|June 3, 2025
PubMed
概括

本研究引入了与事件相关的方法和R包,以分析认知任务如何使用力板数据影响平衡控制. 这种方法增强了对精细时间尺度上的认知运动相互作用的分析.

关键词:
事件锁定事件锁定与事件相关的事件强力板是一个强力板.在R包中,R包是R包.分段化 分段化 分段化 分段化时间序列时间序列

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Assessing Cerebral Autoregulation via Oscillatory Lower Body Negative Pressure and Projection Pursuit Regression
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PIPEMAT-RS: Development and Validation of a Standardized MATLAB Pipeline for Resting-State EEG Preprocessing
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PIPEMAT-RS: Development and Validation of a Standardized MATLAB Pipeline for Resting-State EEG Preprocessing

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相关实验视频

Last Updated: Sep 19, 2025

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

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Assessing Cerebral Autoregulation via Oscillatory Lower Body Negative Pressure and Projection Pursuit Regression
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PIPEMAT-RS: Development and Validation of a Standardized MATLAB Pipeline for Resting-State EEG Preprocessing
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科学领域:

  • 认知神经科学 认知神经科学
  • 发动机控制器的控制器
  • 生物机械工程 生物机械工程

背景情况:

  • 越来越多的证据将认知和运动过程联系起来.
  • 传统的平衡分析方法汇总数据,掩盖了短期的认知效应.
  • 辨别特定认知任务对平衡控制的影响需要更精细的时间分辨率.

研究的目的:

  • 引入一种新的与事件相关的方法来分析认知任务对平衡控制的影响.
  • 开发一个R-package (强力板) 来处理时间序列强力板数据.
  • 在认知实验中建立处理力板数据的标准.

主要方法:

  • 使用与事件相关的方法与力板测量.
  • 开发了用于数据细分,过和基线校正的"强制板"R包.
  • 在实验事件周围的用户定义的时间段内计算描述性统计.

主要成果:

  • "强力板"R-包允许详细分析平衡控制动态.
  • 与事件相关的方法允许在小时间尺度上调查对平衡的认知影响.
  • 处理的数据适用于进一步的统计分析,如ANOVA.

结论:

  • 拟议的与事件相关的方法和R组件有助于精确分析认知运动相互作用.
  • 这种方法提高了在认知背景下平衡控制研究的可比性.
  • 提供了一个标准化的框架,用于分析认知任务期间细粒度平衡调整.