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Design Example: Designing Water Slide01:18

Design Example: Designing Water Slide

208
When designing a water slide, controlling the speed of water flow is crucial for rider safety while maintaining an exciting experience. As water flows down the slide, gravity causes it to accelerate, with its speed at the bottom depending on the height from which it starts. The higher the slide, the more potential energy the water has at the top, which is converted into kinetic energy as it descends, increasing its speed.
Bernoulli's principle determines the water's velocity along the...
208
Design Example: Forces in Sluice Gate01:11

Design Example: Forces in Sluice Gate

750
In hydraulic engineering, sluice gates are essential for managing water flow through channels, reservoirs, and irrigation systems. Sluice gates, acting as vertical barriers, regulate water by adjusting the gate's opening height, which changes the velocity and pressure of water flowing beneath the gate. Understanding the forces involved is crucial to designing sluice gates that can withstand dynamic pressure differences, especially when the gate is closed or partially open.
Key variables in...
750
Wedges01:24

Wedges

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A wedge is a simple machine that serves various purposes, such as adjusting the elevation of structural or mechanical parts, providing stability for heavy objects, and splitting a body into two parts. This versatile tool can amplify an applied force, making it easier to manipulate large or heavy objects.
Consider using a wedge to lift a heavy slab. Here, the wedge functions by converting the applied force into a much larger force directed almost perpendicular to the initial force. This...
1.2K
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

95
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
95
PD Controller: Design01:26

PD Controller: Design

272
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
272
Thematic Layering in GIS01:30

Thematic Layering in GIS

51
In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
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相关实验视频

Updated: Jul 15, 2025

Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices
10:18

Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices

Published on: January 27, 2017

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通过层滑动实现可控制的多功能性.

Mubashar Ali1, Masood Yousaf1, Junaid Munir2

  • 1Department of Physics, University of Education, Lahore, Pakistan.

Journal of molecular graphics & modelling
|September 27, 2023
PubMed
概括
此摘要是机器生成的。

层滑动动态调整/六角化异构的特性. 介质增强稳定性,并修改电子和光学特性,为多功能层级材料提供了途径.

关键词:
接口电子特性 接口电子属性层滑动的层滑动是一种层滑动.在Mg-intercalation中进行.多功能性 多功能性/hBN HS 类型的.调整物理属性的调整.

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Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition
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Last Updated: Jul 15, 2025

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科学领域:

  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学
  • 计算材料科学科学 计算材料科学

背景情况:

  • 物理性质的可控变化是开发多功能材料的关键.
  • 二维 (2D) 范德瓦尔斯异构结构 (vdW-HS) 通过堆叠和功能化提供可调节的特性.

研究的目的:

  • 研究层滑动对/六角化 (hBN) 的结构,电子和光学性能的影响.
  • 探索 (Mg) 介质对这些异构结构的稳定性和特性的影响.

主要方法:

  • 对/hBN vdW-HS.稳定堆叠配置的选.
  • 模拟层滑动在不间接和Mg间接的vdW-HS中.
  • 计算结构参数,结合能,电子带间隙,电荷密度和光学光谱 (介电函数,电子能量损失,折射率等). ) 的情况.

主要成果:

  • 与未间接的对应物相比,Mg间接的vdW-HS表现出明显增强的稳定性.
  • 层滑动诱导频段间隙和界面电子行为 (电荷转移) 的变化.
  • 的间隙减少了极化和能量损失,而层滑动则改变了各种光学光谱.

结论:

  • 层滑是一种可行的方法,可以动态调整2D vdW-HS的属性.
  • 介质增强了稳定性,并改变了/hBN异构的电子和光学反应.
  • 提出的层滑式方法为实现多层材料的多功能性提供了一个总体策略.