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

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

271
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
271
Response Surface Methodology01:16

Response Surface Methodology

590
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
590
Gauss's Law: Cylindrical Symmetry01:20

Gauss's Law: Cylindrical Symmetry

9.2K
A charge distribution has cylindrical symmetry if the charge density depends only upon the distance from the axis of the cylinder and does not vary along the axis or with the direction about the axis. In other words, if a system varies if it is rotated around the axis or shifted along the axis, it does not have cylindrical symmetry. In real systems, we do not have infinite cylinders; however, if the cylindrical object is considerably longer than the radius from it that we are interested in,...
9.2K
Gauss's Law: Problem-Solving01:10

Gauss's Law: Problem-Solving

2.5K
Gauss's law helps determine electric fields even though the law is not directly about electric fields but electric flux. In situations with certain symmetries (spherical, cylindrical, or planar) in the charge distribution, the electric field can be deduced based on the knowledge of the electric flux. In these systems, we can find a Gaussian surface S over which the electric field has a constant magnitude. Furthermore, suppose the electric field is parallel (or antiparallel) to the area vector...
2.5K

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

Uniform zinc oxide nanowire arrays grown on nonepitaxial surface with general orientation control.

Nano letters·2013
Same author

[American head and neck surgery progress of in 2012].

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery·2013
Same author

A compact thermo-optical multimode-interference silicon-based 1 × 4 nano-photonic switch.

Optics express·2013
Same author

Experimental demonstration of 110-Gb/s unsynchronized band-multiplexed superchannel coherent optical OFDM/OQAM system.

Optics express·2013
Same author

Potentially functional variants of p14ARF are associated with HPV-positive oropharyngeal cancer patients and survival after definitive chemoradiotherapy.

Carcinogenesis·2013
Same author

Enhanced molecular transport in hierarchical silicalite-1.

Langmuir : the ACS journal of surfaces and colloids·2013

相关实验视频

Updated: Jan 11, 2026

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
16:01

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging

Published on: September 24, 2017

10.9K

基于BPNN和NSGA-II的圆柱形表面超声波阵列参数的多目标优化方法.

Xin Zeng1,2,3, Xueshen Cao2,3, Jiaheng Zhao2,3

  • 1University of Chinese Academy of Sciences, Beijing 100049, China.

Sensors (Basel, Switzerland)
|November 13, 2025
PubMed
概括

本研究介绍了圆柱式超声波传感器的多目标优化策略,以提高检测分辨率. 该方法使用NSGA-II算法来优化几何参数,提高工程应用的性能.

关键词:
BPNN BPNN BPNN BPNN BPNN BPNN 在线这是NSGA-II算法.圆柱式超声波阵列是一个圆柱式的超声波阵列.多目标优化多目标优化

更多相关视频

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

5.6K
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.5K

相关实验视频

Last Updated: Jan 11, 2026

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
16:01

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging

Published on: September 24, 2017

10.9K
Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

5.6K
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.5K

科学领域:

  • 工程 工程师 工程师 工程师
  • 材料科学 材料科学 材料科学
  • 声学 声学 在声学方面

背景情况:

  • 超声波阵列设计参数极大地影响检测性能指标,如分辨率.
  • 传感器的结构设计会影响侧叶水平,光束的定向性和焦点尺寸.

研究的目的:

  • 为圆柱形表面超声波传感器提出一个多目标优化策略.
  • 改进设计参数的选择,以提高分辨率和性能.

主要方法:

  • 在数组几何参数和分辨率性能变量之间建立了一个非线性映射.
  • 在训练好的 BPNN (逆向传播神经网络) 上使用 NSGA-II 算法进行优化.
  • 优化目标包括主要叶片宽度,侧叶片强度和声压均性.

主要成果:

  • 创建了一个帕雷托最佳解决方案集,提供了优化的几何配置.
  • 声场模拟验证了衍生的配置.
  • 在毫米级分辨率要求下观察到动态光圈规律性.

结论:

  • 提出的优化策略有效地提高了圆柱形超声波阵列的几何设计.
  • 研究结果为现实世界的工程应用提供了宝贵的见解.
  • 该研究展示了一种系统的方法来优化传感器设计以提高性能.