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

Beams with Unsymmetric Loadings01:17

Beams with Unsymmetric Loadings

112
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
112
Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

105
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
105
Beams with Symmetric Loadings01:15

Beams with Symmetric Loadings

182
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
182
Beams01:30

Beams

1.3K
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
1.3K
Shear on the Horizontal Face of a Beam Element01:16

Shear on the Horizontal Face of a Beam Element

158
To understand shear on the flat side of a prismatic beam element, consider the vertical and horizontal shearing forces, and the normal forces, acting on the element. The element's upper (U) and lower (L) sections, which are divided by the beam's neutral axis, are examined. The equilibrium of these forces is determined by applying the equilibrium equation, which helps identify the horizontal shearing force. This force is directly related to the bending moments and the cross-section's...
158
Shearing Stresses in a Beam: Problem Solving01:14

Shearing Stresses in a Beam: Problem Solving

168
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by...
168

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

Pd Icosahedral Nanoparticles Promote Skin Wound Healing by Enhancing SP1-HBEGF Axis-Mediated Keratinocytes Proliferation.

International journal of nanomedicine·2025
Same author

Constructing multilayer PPI networks based on homologous proteins and integrating multiple PageRank to identify essential proteins.

BMC bioinformatics·2025
Same author

Comparative analysis of femtosecond, picosecond, and nanosecond laser techniques for transseptal puncture: An in vitro study with pathological correlation.

Journal of photochemistry and photobiology. B, Biology·2025
Same author

The Novel Allele HLA-DPA1*02:01:34 Differs From HLA-DPA1*02:01:01:02 by a Synonymous Mutation.

HLA·2025
Same author

Transforming Growth Factor-β-Activated Protein 1 (TAK1) Regulates Necroptosis in Age-Related Hearing Loss.

Aging cell·2025
Same author

Nrf2 alleviates acute ischemic stroke induced ferroptosis via regulating xCT/GPX4 pathway.

Free radical biology & medicine·2025

相关实验视频

Updated: Jun 9, 2025

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
08:25

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment

Published on: May 7, 2019

8.9K

网状上下文意识的光束搜索图像标题.

Fengzhi Zhao1,2, Zhezhou Yu1,2,3, Tao Wang1,2

  • 1College of Computer Science and Technology, Jilin University, Changchun 130012, China.

Entropy (Basel, Switzerland)
|October 25, 2024
PubMed
概括
此摘要是机器生成的。

网状上下文感知光束搜索 (MCBS) 通过动态整合标题上下文和图像注意力来增强图像标题. 这种方法减少了重复性的单词,并提高了标题的整体质量和相关性.

关键词:
梁搜索搜索 梁搜索搜索解码策略的解码策略结合在一起 - 意识到上下文

更多相关视频

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

475
SwarmSight: Real-time Tracking of Insect Antenna Movements and Proboscis Extension Reflex Using a Common Preparation and Conventional Hardware
08:13

SwarmSight: Real-time Tracking of Insect Antenna Movements and Proboscis Extension Reflex Using a Common Preparation and Conventional Hardware

Published on: December 25, 2017

8.1K

相关实验视频

Last Updated: Jun 9, 2025

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
08:25

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment

Published on: May 7, 2019

8.9K
Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

475
SwarmSight: Real-time Tracking of Insect Antenna Movements and Proboscis Extension Reflex Using a Common Preparation and Conventional Hardware
08:13

SwarmSight: Real-time Tracking of Insect Antenna Movements and Proboscis Extension Reflex Using a Common Preparation and Conventional Hardware

Published on: December 25, 2017

8.1K

科学领域:

  • 计算机科学 计算机科学
  • 人工智能的人工智能
  • 自然语言处理自然语言处理.

背景情况:

  • 梁搜索是一种用于图像标题的标准算法,旨在生成准确和强大的标题.
  • 现有的光束搜索方法往往忽略了更广泛的图像上下文,并且可以产生重复性的,不那么多样化的标题.

研究的目的:

  • 引入Meshed Context-Aware Beam Search (MCBS),以解决图像标题的标准光束搜索的局限性. 引入网状文本意识光束搜索 (MCBS),以解决图像标题的标准光束搜索的局限性.
  • 为了提高标题的连贯性,上下文的适当性和多样性.

主要方法:

  • 在解码过程中,MCBS动态地使用生成的标题上下文来影响图像注意力机制.
  • 纳入了惩罚系数,以阻止在生成的标题中重复单词.

主要成果:

  • 在图像标题任务中,MCBS显著提高了模型的整体性能.
  • 该方法通过考虑标题上下文,提高了对相关图像区域的关注度.

结论:

  • 对于图像标题,MCBS比传统的光束搜索提供了显著的改进.
  • 拟议的方法导致更连贯,上下文相关和多样化的图像字幕.