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

Conservation of Linear Momentum for a System of Particles01:28

Conservation of Linear Momentum for a System of Particles

222
In the dynamic realm of billiards, a fascinating interplay of forces governs the motion of cue balls and stationary balls. When the cue ball collides with a stationary ball, linear momentum is exchanged. The cue ball imparts a fraction of its linear momentum to the stationary ball, causing the cue ball to decelerate while initiating the motion of the stationary ball.
The impulsive force at play during this interaction is of extremely short duration, rendering its impulse negligible. When...
222
Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

170
Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
170
NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

684
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
684
Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

89
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
89
Radiation Pressure: Problem Solving01:09

Radiation Pressure: Problem Solving

354
The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
The average value of the rate of momentum transfer divided by the absorbing area represents the average force...
354

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

From muscle to motion: GaIn nanoparticle-TPU core/shell mesh electrodes for intelligent prosthesis.

Materials horizons·2025
Same author

A universal immunohistochemistry analyzer for generalizing AI-driven assessment of immunohistochemistry across immunostains and cancer types.

NPJ precision oncology·2024
Same author

Poor prognostic factors independently impact remission and treatment escalation in rheumatoid arthritis regardless of disease activity: A nationwide prospective cohort study.

Joint bone spine·2024
Same author

Inflamed immune phenotype predicts favorable clinical outcomes of immune checkpoint inhibitor therapy across multiple cancer types.

Journal for immunotherapy of cancer·2024
Same author

Discontinuation risk from adverse events: immunotherapy alone vs. combined with chemotherapy: a systematic review and network meta-analysis.

BMC cancer·2024
Same author

The Psychomotor Cognition Test for Measurement of Sleepiness/Fatigue on a Touch Screen<sup></sup>.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2023
Same journal

Launching a new era for Short Communications in Journal of Synchrotron Radiation.

Journal of synchrotron radiation·2026
Same journal

Sagittal collimating diaboloid: a new grazing-incidence mirror surface for higher-throughput resonant inelastic X-ray scattering spectrometers.

Journal of synchrotron radiation·2026
Same journal

Synchrotron X-ray tomography and spectroscopy in numismatics: disclosing counterfeit practices in medieval silver coins.

Journal of synchrotron radiation·2026
Same journal

The Big Data Science Center at the Shanghai Synchrotron Radiation Facility: the architecture of the superfacility.

Journal of synchrotron radiation·2026
Same journal

A robotic and high-throughput X-ray micro-computed tomography workflow.

Journal of synchrotron radiation·2026
Same journal

Evolution of hierarchical phase-contrast tomography on the European Synchrotron beamlines BM05 and BM18: a whole adult human brain imaging case study.

Journal of synchrotron radiation·2026
查看所有相关文章

相关实验视频

Updated: Jun 23, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.8K

对于低发射储存环的非线性优化.

Bonghoon Oh1, Jinjoo Ko1, Seunghwan Shin1

  • 1Department of Accelerator Science, Korea University, 2511 Sejong-ro, Sejong 30019, South Korea.

Journal of synchrotron radiation
|June 25, 2024
PubMed
概括
此摘要是机器生成的。

一个新的自适应交叉参数可以改进多目标遗传算法 (MOGA) 和多代高斯过程优化 (MGGPO). 这种优化策略减少了计算时间,并提高了设计低发射量存储环的性能.

关键词:
在MGGOP中,MGGOP是MGGOP.莫加莫加 (MOGA) 是一个动态光圈开口的动态光圈开口自适应式交叉车 自适应式交叉车储存环 储存环是一个储存环.

更多相关视频

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.4K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.4K

相关实验视频

Last Updated: Jun 23, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.8K
Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.4K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.4K

科学领域:

  • 计算科学 计算科学
  • 优化算法 优化算法
  • 粒子加速器物理学 物理

背景情况:

  • 多目标遗传算法 (MOGA) 是有效的全球优化工具.
  • MOGA性能对交叉参数 (ηc) 很敏感,需要大量的计算来调整.
  • 现有的多代高斯过程优化 (MGGPO) 方法也从参数优化中受益.

研究的目的:

  • 为MOGA引入一个自我适应的交叉参数策略.
  • 将这种适应性策略集成到MGGPO中,以改进试验解决方案的生成.
  • 评估在非线性优化任务中增强的MOGA和MGGPO性能.

主要方法:

  • 实现了一个自我适应的交叉参数,在MOGA内调整每一代的 ηc.
  • 在试验解决方案生产过程中,将相同的适应策略应用于MGGPO进行参数选择.
  • 对比了新的自适应MOGA和MGGPO与它们的传统对应器的性能.

主要成果:

  • 自适应策略显著改善了MOGA和MGGPO的业绩.
  • 增强的MOGA和MGGPO在非线性优化方面表现出卓越的结果.
  • 具体而言,在低排放储存环的设计中观察到性能改善.

结论:

  • 自适应交叉参数为MOGA和MGGPO提供了计算高效和有效的增强.
  • 这种适应性方法导致更好的优化结果,特别是在复杂的工程设计,如储存环.
  • 拟议的方法减少了手动参数调节的负担,节省了大量的计算时间.