Jove
Visualize
联系我们

相关概念视频

Control Systems01:10

Control Systems

Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
Control Systems: Applications01:25

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...
Electro-mechanical Systems01:19

Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
Generator Voltage Control01:21

Generator Voltage Control

Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand, use...

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

Structure and dynamics of confined water in naphthalene-diimide based molecular crystals.

The Journal of chemical physics·2026
Same author

Aromaticity-Induced Spin State Switching and High-Spin States in Non-Alternant Polyradicals.

Journal of computational chemistry·2026
Same author

Quantum engineering of mixed-valence 1D conjugated polymers.

Physical chemistry chemical physics : PCCP·2026
Same author

Stable 1,3,2-Benzodithiazolyl Radicals: Modification of Reactivity, Crystal Packing, and Solid State Magnetic Properties by Fluorination.

ChemistryOpen·2026
Same author

π-π Stacking Determines the Selectivity of Unnatural DNA Base Pairs Even without Polymerase.

ACS physical chemistry Au·2026
Same author

High-Spin Porphyrin Polyradicals.

ACS omega·2026
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

相关实验视频

Updated: Jun 18, 2026

Designing a Bio-responsive Robot from DNA Origami
13:32

Designing a Bio-responsive Robot from DNA Origami

Published on: July 8, 2013

22.4K

通过最佳定向的外部电场控制分子机器.

Marco Severi1, Ibério de P R Moreira2,3, Jordi Ribas-Ariño2,3

  • 1Department of Chemistry G. Ciamician, University of Bologna Via P. Gobetti 85 40129 Bologna Italy marco.severi6@unibo.it.

Chemical science
|August 13, 2025
PubMed
概括
此摘要是机器生成的。

电场 (E-fields) 通过调整布朗运动来精确控制分子机器. 这项研究证明了电子场对分子运动的控制,为分子设备提供了一个新的设计原则.

更多相关视频

Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface
11:00

Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface

Published on: October 2, 2016

9.1K
Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

11.5K

相关实验视频

Last Updated: Jun 18, 2026

Designing a Bio-responsive Robot from DNA Origami
13:32

Designing a Bio-responsive Robot from DNA Origami

Published on: July 8, 2013

22.4K
Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface
11:00

Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface

Published on: October 2, 2016

9.1K
Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

11.5K

科学领域:

  • 物理化学 物理化学
  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术

背景情况:

  • 布朗运动校正是分子机器操作的关键.
  • 电场 (E-fields) 为控制分子运动提供了一个有前途的方法.
  • 现有的控制方法通常需要高能量输入或特定的分子设计.

研究的目的:

  • 为了证明在不同的分子机器中以电子场驱动的分子运动的控制.
  • 为有效的分子运动控制确定最佳的E场方向.
  • 为了计算验证一个新的可极化分子电偶极极模型,用于预测E场效应.

主要方法:

  • 使用可极化分子电偶极模型进行计算建模.
  • 在两个分子机器模型上模拟E场效应:基于的烯和阿基拉旋转器.
  • 对潜在能量表面的分析,以确定E场引起的过渡状态和能量最小值的变化.

主要成果:

  • 电子场可以在基本状态下诱导双向异构,绕过高能光化学路径.
  • 最佳的电子场方向将激活的步骤转化为无障碍的过程,从而实现方向控制.
  • 对分子旋转的逻辑控制,包括"STOP"和"GO"状态,可以在没有分子性的情况下实现.
  • 预测的场强度与当前扫描道显微镜技术兼容.

结论:

  • 电子场为控制分子机器提供了一个可通用和非侵入性的策略.
  • 这种方法可以精确地操纵分子运动,用于先进的合成和生物应用.
  • 这些发现为设计下一代电子场控制分子装置铺平了道路.