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

Stream Function01:20

Stream Function

1.1K
In two-dimensional incompressible fluid flow, the continuity equation is essential for ensuring mass conservation, meaning that any change in fluid entering or exiting a region is balanced by a corresponding change elsewhere. For incompressible flow, where density remains constant, this requirement simplifies to the condition that the divergence of the velocity field must be zero. Mathematically, this is expressed as,
1.1K
Steady Flow of a Fluid Stream01:27

Steady Flow of a Fluid Stream

249
Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
249
Rapidly Varying Flow01:24

Rapidly Varying Flow

49
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
49
Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

69
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
69
Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

59
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
59
Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

56
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
56

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

Toward Intelligent Emergency Triage: A Feasibility Study of Real-Time Facial Expression-Based Chest Pain Intensity Assessment.

Diagnostics (Basel, Switzerland)·2026
Same author

Echocardiography Report Translation and Inference Based on Parameter-Efficient Fine-Tuning of LLaMA Models.

Diagnostics (Basel, Switzerland)·2026
Same author

On Construction of Tibial Plateau Fracture Detection in Different Radiographic Views Using YOLO Models.

Diagnostics (Basel, Switzerland)·2026
Same author

A Public Health Approach to Automated Pain Intensity Recognition in Chest Pain Patients via Facial Expression Analysis for Emergency Care Prioritization.

Diagnostics (Basel, Switzerland)·2025
Same author

Automatic Feature Selection for Imbalanced Echocardiogram Data Using Event-Based Self-Similarity.

Diagnostics (Basel, Switzerland)·2025
Same author

The Potential for High-Priority Care Based on Pain Through Facial Expression Detection with Patients Experiencing Chest Pain.

Diagnostics (Basel, Switzerland)·2025

相关实验视频

Updated: Jun 3, 2025

gP2S, an Information Management System for CryoEM Experiments
13:01

gP2S, an Information Management System for CryoEM Experiments

Published on: June 10, 2021

5.4K

使用DeepStream和简单的实时服务器构建流服务应用程序,使用容器化用于边缘计算.

Wen-Chung Shih1, Zheng-Yao Wang2, Endah Kristiani2,3

  • 1Department of M-Commerce and Multimedia Applications, Asia University, Taichung City 413305, Taiwan.

Sensors (Basel, Switzerland)
|January 11, 2025
PubMed
概括

这项研究表明,NVIDIA Jetson Xavier NX上的容器化流媒体应用与物理机器相匹配. 对于边缘计算视频流,WebRTC提供较低的延迟,但硬件限制了多个连接.

关键词:
杜克尔·多克尔 (Docker Docker) 是一个美国人.杰森·克萨维尔NX NX在深流的深流中.边缘计算是一种边缘计算.简单的实时服务器.

更多相关视频

Protocol for Biofilm Streamer Formation in a Microfluidic Device with Micro-pillars
07:19

Protocol for Biofilm Streamer Formation in a Microfluidic Device with Micro-pillars

Published on: August 20, 2014

12.1K
Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
07:49

Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization

Published on: November 26, 2019

8.0K

相关实验视频

Last Updated: Jun 3, 2025

gP2S, an Information Management System for CryoEM Experiments
13:01

gP2S, an Information Management System for CryoEM Experiments

Published on: June 10, 2021

5.4K
Protocol for Biofilm Streamer Formation in a Microfluidic Device with Micro-pillars
07:19

Protocol for Biofilm Streamer Formation in a Microfluidic Device with Micro-pillars

Published on: August 20, 2014

12.1K
Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
07:49

Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization

Published on: November 26, 2019

8.0K

科学领域:

  • 计算机科学 计算机科学
  • 电气工程 电气工程
  • 软件工程 软件工程 软件工程

背景情况:

  • 边缘计算需要高效,可扩展的流媒体解决方案.
  • 在边缘部署中,NVIDIA Jetson Xavier NX和Docker是关键技术.
  • 评估用于实时视频处理的容器化应用程序至关重要.

研究的目的:

  • 在边缘硬件上评估容器化流媒体应用程序的性能.
  • 为了比较不同流媒体协议 (WebRTC,HLS,RTMP) 的延迟和资源利用情况.
  • 识别基于边缘的流媒体架构中的性能瓶和硬件限制.

主要方法:

  • 使用NVIDIA Jetson Xavier NX硬件和Docker进行应用部署.
  • 评估了DeepStream和简单的实时服务器用于流媒体服务应用程序.
  • 在WebRTC,HLS和RTMP协议中进行了性能和负载测试.

主要成果:

  • 容器化应用实现了与物理机器相提并论的性能.
  • 与HLS (10秒以上) 相比,WebRTC表现出优越的低延迟 (大约5s).
  • 与HLS和RTMP相比,WebRTC的CPU使用率 (>40%) 较高;内存使用率稳定.
  • 系统性能降低了与超过三个同时使用的设备.

结论:

  • 容器化对于高性能边缘流应用程序是可行的.
  • 尽管CPU负载较高,但WebRTC适用于低延迟边缘视频流.
  • 在NVIDIA Jetson Xavier NX上的硬件限制限制了众多并发连接的可扩展性.