Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Wind Turbine Machine Models01:24

Wind Turbine Machine Models

92
In the growing field of wind energy, incorporating wind turbine models into transient stability analysis is essential. Induction and synchronous machines are the primary models used, with induction machines being prevalent due to their simplicity and reliability.
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
92
Design Example: Calculating Safe Diameter for Wind-Exposed Disc01:17

Design Example: Calculating Safe Diameter for Wind-Exposed Disc

14
Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
14
Prediction Intervals01:03

Prediction Intervals

2.2K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y. 
2.2K
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

93
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
93
Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

1.9K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
1.9K
Maxwell-Boltzmann Distribution: Problem Solving01:20

Maxwell-Boltzmann Distribution: Problem Solving

1.3K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
1.3K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Reproducible Molecular Subtypes in Systemic Lupus Erythematosus Are Associated With Disease Activity, Serology, and Distinct Trajectories Over Time.

ACR open rheumatology·2026
Same author

ViewAdapt-Det: view-adaptive detection for soccer broadcasting videos.

Scientific reports·2026
Same author

Isomucronulatol 7-O-glucoside attenuates post-AMI monocyte/macrophage cardiac recruitment via HIF-1α/THBS1-mediated immunometabolic adhesion.

Journal of ethnopharmacology·2026
Same author

Predictors of treatment response to subthreshold micropulse laser and oral spironolactone therapy for central serous chorioretinopathy.

BMC ophthalmology·2026
Same author

Hybrid spatial-field attention network for meteorological data downscaling.

Scientific reports·2026
Same author

Chinese medicine Sheng Jing Decoction alleviates oligoasthenospermia by modulating PI3K/Akt and MAPK signaling pathways.

Phytomedicine : international journal of phytotherapy and phytopharmacology·2026

相关实验视频

Updated: May 16, 2025

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
04:35

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach

Published on: July 3, 2020

3.3K

一个机器学习模型用于枢纽高度的短期风速预测.

Zongwei Zhang1,2, Lianlei Lin3,4, Sheng Gao1,2

  • 1School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, China.

Nature communications
|April 3, 2025
PubMed
概括

精确的短期风速预测对于风力发电系统至关重要. 一个新的多变量气象数据融合风预测网络 (MFWPN) 显示出优异的精度和效率,用于细网矢量风速预测.

更多相关视频

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.5K
Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines
08:27

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Published on: January 5, 2024

913

相关实验视频

Last Updated: May 16, 2025

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
04:35

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach

Published on: July 3, 2020

3.3K
Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.5K
Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines
08:27

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Published on: January 5, 2024

913

科学领域:

  • 可再生能源系统可再生能源系统
  • 气象预报 气象预报
  • 计算流体动力学的流体动力学.

背景情况:

  • 准确的短期风速预测对于风力发电系统的安全,稳定和高效运行至关重要.
  • 现有的模型往往在细网矢量风速预测方面扎,特别是在复杂的地理区域.

研究的目的:

  • 开发和评估一个新的多变量气象数据融合风预测网络 (MFWPN).
  • 评估MFWPN在中国东北地区细网矢量风速预测方面的表现.
  • 为了证明模型的概括能力和计算效率.

主要方法:

  • 该研究提出了一个多变量气象数据融合风预测网络 (MFWPN).
  • 该 MFWPN 集成了多样化的气象数据,以提高预测准确度.
  • 绩效与ECMWF-HRES模型相比,并通过转移和效率实验来评估.

主要成果:

  • 在最初的6小时内,MFWPN在矢量风速预测准确度上明显优于ECMWF-HRES模型.
  • 转移实验证实了MFWPN强大的通用性能,使得快速的场外预测.
  • 效率实验揭示了MFWPN在仅18毫秒的时间内预测24小时细网上的矢量风速的能力.

结论:

  • 极短风速预测仪 (MFWPN) 是用于超短和短期风速预测的高精度和高效工具.
  • 它能够处理细网矢量风速预测的能力使其适用于大型区域风力中心.
  • 该模型有助于改善风力发电的部署规划.