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相关概念视频

Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

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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...
539
Shear on the Horizontal Face of a Beam Element01:16

Shear on the Horizontal Face of a Beam Element

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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...
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Deflection of a Beam01:19

Deflection of a Beam

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Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
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Free Jet01:14

Free Jet

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Free jets describe the flow of liquid exiting a reservoir through an opening into the atmosphere without resistance. The velocity (v) of the liquid jet is derived using Bernoulli's principle and expressed as:
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Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

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Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
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Partial Fractions01:28

Partial Fractions

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A partial fraction is a component of a rational expression represented as the sum of simpler fractions. When a rational function is expressed as a ratio of two polynomials, it can often be decomposed into a sum of fractions whose denominators are simpler polynomials, typically linear or irreducible quadratic factors. This process is called partial fraction decomposition, and it is used to simplify complex expressions for integration, solving equations, or analysis.Partial fraction decomposition...
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相关实验视频

Updated: Apr 10, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
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关于分数旋转束束的审查

Hao Zhang1, Jun Zeng2, Xingyuan Lu1

  • 1School of Physical Science and Technology, Soochow University, Suzhou 215006, China.

Nanophotonics (Berlin, Germany)
|December 5, 2024
PubMed
概括
此摘要是机器生成的。

分数束为先进的应用提供了独特的特性. 本综述涵盖了它们的模型,生成和在微粒子操纵和量子纠中的使用.

关键词:
分数旋束束的束.轨道角运动量 轨道角运动量阶段 阶段 阶段 阶段单一的光学是独一无二的结构光的结构光.拓学电荷跳跃跳跃.

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Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
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Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

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Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

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相关实验视频

Last Updated: Apr 10, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
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Scanning SQUID Study of Vortex Manipulation by Local Contact

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Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
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Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 量子信息科学 量子信息科学

背景情况:

  • 分数束是整数束的关键补充.
  • 它们表现出独特的特性,比如有的强度和复杂的相位结构.
  • 这些光束使复杂的轨道角动量调制成为可能.

研究的目的:

  • 为了回顾最近在分数旋光束方面的进展.
  • 涵盖理论模型,传播,生成和测量.
  • 探索它们的应用和未来的挑战.

主要方法:

  • 对理论模型和传播特征的审查.
  • 对分数旋转束的生成技术的分析.
  • 检查测量方法和实验设置.

主要成果:

  • 分数束在光学子中广泛用于微粒子操纵.
  • 它们增强了通信能力,并使可控制的图像边缘增强成为可能.
  • 应用范围扩展到量子纠和微/纳米光学设备.

结论:

  • 分数束对于先进的光学应用至关重要.
  • 持续的研究是由它们独特的物理现象和潜力驱动的.
  • 未来的方向包括探索新的光束源和微/纳米光学设备.