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

Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

414
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
414
Bending of Curved Members - Neutral Surface01:16

Bending of Curved Members - Neutral Surface

172
In curved beams, unlike straight beams, the stress distribution across the cross-section is not uniform due to the beam's curvature. This non-uniformity arises because the neutral axis, where stress is zero, does not align with the centroid of the section. In a curved beam, the strain varies along the section as a function of the distance from the neutral axis.
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within...
172
Curvilinear Motion: Polar Coordinates01:27

Curvilinear Motion: Polar Coordinates

346
In polar coordinates, the motion of a particle follows a curvilinear path. The radial coordinate symbolized as 'r,' extends outward from a fixed origin to the particle, while the angular coordinate, 'θ,' measured in radians, represents the counterclockwise angle between a fixed reference line and the radial line connecting the origin to the particle.
The particle's location is described using a unit vector along the radial direction. Deriving the particle's position...
346
Design Example: Setting a Curve Using Design Data01:09

Design Example: Setting a Curve Using Design Data

21
Designing and plotting a curve using field data requires precise calculations and execution. A horizontal curve with a radius of 200 meters and an intersection angle of 20 degrees is established using the method of perpendicular offsets from the long chord. The long chord, which spans between the curve's endpoints, is calculated to be 69.46 meters in length. To maintain accuracy in plotting, intervals of 3 meters are selected along the chord.The engineer determines the offset distances for each...
21
Bending of Curved Members - Strain Analysis01:14

Bending of Curved Members - Strain Analysis

128
The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve.
The important part of bending analysis for such a member...
128
Unsymmetric Bending01:18

Unsymmetric Bending

313
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from those in symmetrical bending, and are essential for designing structures to withstand different loading conditions. In unsymmetrical bending, the neutral axis—where stress is zero—does not necessarily align with the geometric axes of the cross-section. The...
313

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

Multiscale hyperbolic embedding reveals hierarchical structure in complex biological systems.

NPJ systems biology and applications·2026
Same author

Spontaneous replication fork collapse regulates telomere length homeostasis in wild type yeast.

bioRxiv : the preprint server for biology·2026
Same author

Multiscale Hyperbolic Embedding for Cell Hierarchies in Large-Scale Bioinformatics Data.

bioRxiv : the preprint server for biology·2025
Same author

Distance-Based Logistic Matrix Factorization.

Neural computation·2025
Same author

Author Correction: ImAge quantitates aging and rejuvenation.

Nature aging·2025
Same author

Computations that sustain neural feature selectivity across processing stages.

PLoS computational biology·2025
Same journal

Bioactive carbon dots from peony seed meal for nanomedicine via circular economy.

iScience·2026
Same journal

Genetic ablation of <i>Sfxn5</i> induces mitochondrial dysfunction and precipitates lethal metabolic crisis in mice.

iScience·2026
Same journal

Expansion, functional diversification, and gene fusion events in the Ato protein family.

iScience·2026
Same journal

The pro-inflammatory cytokines IFN-α and TNF-α inhibit organoid-derived extravillous trophoblast invasion.

iScience·2026
Same journal

Urbanization compound pathways of global lung cancer incidence risk under proximal and distal interactions.

iScience·2026
Same journal

Capsid and integrase play essential apposing roles in viral ribonucleoprotein assembly during HIV-1 core morphogenesis.

iScience·2026
查看所有相关文章

相关实验视频

Updated: Jun 5, 2025

Trajectory Data Analyses for Pedestrian Space-time Activity Study
16:14

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

13.5K

适应性数据嵌入用于曲空间的数据嵌入.

Anoop Praturu1,2, Tatyana O Sharpee1,2

  • 1Computational Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA, USA.

iScience
|December 9, 2024
PubMed
概括
此摘要是机器生成的。

超标几何学揭示了复杂的系统结构. 一种新的贝叶斯多维缩放 (MDS) 方法准确地绘制数据,显示病毒进化增加曲率和疫苗收缩,有助于理解复杂的数据动态.

关键词:
复杂的系统复杂的系统.计算数学是指计算数学.计算方法的计算方法.

更多相关视频

Author Spotlight: Enhancing Skin Model Diversity with Cost-Effective 3D Cellular Models
08:32

Author Spotlight: Enhancing Skin Model Diversity with Cost-Effective 3D Cellular Models

Published on: October 20, 2023

2.4K
Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects
06:36

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects

Published on: October 18, 2024

887

相关实验视频

Last Updated: Jun 5, 2025

Trajectory Data Analyses for Pedestrian Space-time Activity Study
16:14

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

13.5K
Author Spotlight: Enhancing Skin Model Diversity with Cost-Effective 3D Cellular Models
08:32

Author Spotlight: Enhancing Skin Model Diversity with Cost-Effective 3D Cellular Models

Published on: October 20, 2023

2.4K
Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects
06:36

Author Spotlight: Insights into the Analysis of Human Interaction with 3D Virtual Objects

Published on: October 18, 2024

887

科学领域:

  • 复杂系统科学 复杂系统科学
  • 计算几何学的计算几何学
  • 生物信息学是一种生物信息学.

背景情况:

  • 超标几何学越来越多地被认为具有模拟复杂等级系统的能力.
  • 现有的数据嵌入超标空间的方法缺乏原则性参数估计.
  • 了解进化动态需要强大的方法来分析复杂的生物序列数据.

研究的目的:

  • 开发一个贝叶斯的多维缩放 (MDS) 方法,用于超标数据嵌入.
  • 为了使多种参数如曲率和尺寸的原则估计.
  • 将这种方法应用于分析病毒演变动态,特别是COVID-19序列.

主要方法:

  • 开发了一种贝叶斯式的多维缩放 (MDS) 公式,用于超标空间.
  • 包含多种参数 (曲率,尺寸) 的原则性确定.
  • 验证了模型的稳定性和区分超标与欧几里德数据的能力.

主要成果:

  • 贝叶斯MDS模型需要最小的数据来限制多元参数.
  • 优化证明了对虚假最小值的稳定性,准确地区分了超标和欧几里德数据.
  • 对COVID-19序列的分析表明,病毒进化在不改变维度的情况下,在对数式上增加过度曲线.
  • 疫苗引入后观察到曲率的收缩.

结论:

  • 开发的贝叶斯MDS方法有效地揭示了复杂系统中的低维结构.
  • 超标几何学为分析病毒进化和对干预措施的反应提供了一个强大的框架.
  • 这种方法在识别动态复杂数据中的微妙变化和结构变化方面具有实用性.