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

Linear time-invariant Systems01:23

Linear time-invariant Systems

258
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
258
BIBO stability of continuous and discrete -time systems01:24

BIBO stability of continuous and discrete -time systems

395
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
395
Power System Distribution01:25

Power System Distribution

239
Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
The transmission system is designed...
239
Multimachine Stability01:25

Multimachine Stability

153
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
153
Multiple Voltage Sources01:25

Multiple Voltage Sources

1.2K
Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
In series, the positive terminal of one battery is connected to the negative terminal of another battery. Hence, the voltage of each battery is added to give the net voltage, which is increased because each battery boosts the electrons that enter it. The same current flows through each battery because they are connected in series.
Batteries are...
1.2K
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

109
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
109

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

A Historical Review of U.S. Contributions to the Atomic Redefinition of the SI Second in 1967.

Journal of research of the National Institute of Standards and Technology·2021
Same author

Accurate, Traceable, and Verifiable Time Synchronization for World Financial Markets.

Journal of research of the National Institute of Standards and Technology·2021
Same author

The GOES Time Code Service, 1974-2004: A Retrospective.

Journal of research of the National Institute of Standards and Technology·2016
Same author

The SIM Time Network.

Journal of research of the National Institute of Standards and Technology·2016
Same author

WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio.

Journal of research of the National Institute of Standards and Technology·2015
Same author

A Low-Cost Time Transfer Receiver for Contributions to Coordinated Universal Time.

Journal of research of the National Institute of Standards and Technology·2015

相关实验视频

Updated: Jul 1, 2025

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

6.7K

多源共同视图有纪律的时钟:对于关键基础设施系统的故障安全时钟.

Michael A Lombardi1

  • 1National Institute of Standards and Technology, Boulder, CO 80305, USA.

Journal of research of the National Institute of Standards and Technology
|March 12, 2024
PubMed
概括

美国国家科学与技术研究所 (NIST) 为关键时间系统开发了多源常见视图纪律时钟 (MSCVDC). 本发明为基础设施需求提供了增强的可靠性,安全性和防故障性能.

科学领域:

  • 计量学和计时系统
  • 关键基础设施保护 关键基础设施保护
  • 先进的时钟同步 时间同步

背景情况:

  • 现有的计时系统在准确性和故障安全操作方面面临挑战.
  • 关键基础设施在很大程度上依赖于精确可靠的计时.
  • 需要强大的,可验证的时钟解决方案至关重要.

研究的目的:

  • 介绍了新的多源常见视图纪律时钟 (MSCVDC).
  • 为MSCVDC的功能提供全面的技术概述.
  • 评估MSCVDC适用于关键基础设施时间的适用性.

主要方法:

  • 对MSCVDC架构的详细技术描述.
  • 对可靠性,冗余性和安全特性进行分析.
  • 根据各种运营场景进行绩效评估.

主要成果:

  • 该MSCVDC展示了高精度和故障安全能力.
  • 强大的设计确保了关键应用的可靠性和冗余性.
  • 整合了安全功能,以保护时间完整性.

结论:

关键词:
协调宇宙时间 (Coordinated Universal Time) 是一个统一的时间.关键基础设施系统关键基础设施系统时间同步同步同步同步时间转移时间转移.

更多相关视频

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

12.0K
Clock Scan Protocol for Image Analysis: ImageJ Plugins
07:19

Clock Scan Protocol for Image Analysis: ImageJ Plugins

Published on: June 19, 2017

17.4K

相关实验视频

Last Updated: Jul 1, 2025

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

6.7K
Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

12.0K
Clock Scan Protocol for Image Analysis: ImageJ Plugins
07:19

Clock Scan Protocol for Image Analysis: ImageJ Plugins

Published on: June 19, 2017

17.4K
  • MSCVDC是NIST的一个有希望的发明,用于关键基础设施的时间.
  • 它提供了一个可验证的准确和安全的时钟解决方案.
  • 讨论了商业可行性和未来的产品开发.