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相关概念视频

Brick Sizes01:21

Brick Sizes

Brick sizing plays a crucial role in construction, influencing both the aesthetics and structural integrity of buildings. Bricks are defined by three dimensions: width, thickness, and length. They are commonly designed to fit modular measurements, typically in multiples of 4 inches or 8 inches in width, to facilitate uniform construction and compatibility with other building materials.
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
Design Example: Measuring Distance Between Two Points with Obstructions01:10

Design Example: Measuring Distance Between Two Points with Obstructions

When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...

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相关实验视频

Updated: Jun 14, 2026

Designing and Implementing Nervous System Simulations on LEGO Robots
10:34

Designing and Implementing Nervous System Simulations on LEGO Robots

Published on: May 25, 2013

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通过基于LEGO®的样品配套系统来提高SEM定位精度.

Piero Antonio Zecca1, Andrea Brambilla1, Marcella Reguzzoni1

  • 1Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy.

Microscopy research and technique
|December 1, 2023
PubMed
概括
此摘要是机器生成的。

一个基于LEGO的新系统通过实现精确的样本重新定位来增强扫描电子显微镜 (SEM). 这种具有成本效益的解决方案提高了材料科学研究的分析可重复性和准确性.

关键词:
功能注册过程 功能注册过程机械耐受性评价 机械耐受性评估定位系统的定位系统.样本重新定位精度的精度.扫描电子显微镜 (SEM) 的使用

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Characterization Of Multi-layered Fish Scales Atractosteus spatula Using Nanoindentation, X-ray CT, FTIR, and SEM
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Characterization Of Multi-layered Fish Scales Atractosteus spatula Using Nanoindentation, X-ray CT, FTIR, and SEM
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科学领域:

  • 材料科学 材料科学 材料科学
  • 形态学科学 形态学科学
  • 纳米技术纳米技术

背景情况:

  • 扫描电子显微镜 (SEM) 对于纳米级材料分析至关重要.
  • 在SEM中精确的样本重新定位是一个持续的挑战,影响数据质量和可重现性.
  • 现有的样本定位方法可能很昂贵,缺乏定制.

研究的目的:

  • 开发和评估基于LEGO的SEM样本定位系统.
  • 评估系统能够确保一致的特征对齐和准确的z轴定位的能力.
  • 在SEM分析中确定系统的精度,准确性和可重复性.

主要方法:

  • 基于LEGO的模块化样品持有器和定位系统的设计和建造.
  • 使用Rambold Kontroll比较器进行评估,以评估机械耐受性.
  • 在多个重新定位周期中对绝对转换,旋转,缩放和剪切进行定量分析.

主要成果:

  • 基于乐高的系统在样本重新定位方面表现出高精度和准确性.
  • 观察到最小的位移和偏差在缩放和剪切.
  • 结果具有高度显著性 (p < 0.001) 并在六次重复中一致复制.

结论:

  • 基于乐高的样本定位系统为提高SEM分析质量和可重复性提供了一个有希望的,具有成本效益的解决方案.
  • 该系统有助于一致的特征识别和对齐,这对于纵向研究至关重要.
  • 建议进行进一步的研究以优化设计并探索更广泛的SEM应用.