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Van de Graaff Generator01:15

Van de Graaff Generator

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Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
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Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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相关实验视频

Updated: Jun 23, 2025

A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures
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A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures

Published on: November 8, 2024

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货币:DART实验室的小物体生成器工具

Carmine Buonagura1, Mattia Pugliatti1, Francesco Topputo1

  • 1Department of Aerospace Science and Technology, Politecnico di Milano, 20156 Milan, Italy.

Sensors (Basel, Switzerland)
|June 19, 2024
PubMed
概括
此摘要是机器生成的。

小物体测量工具 (MONET) 创建小行星和彗星的真实3D模型,用于测试航天器导航. 该工具通过模拟各种表面特征和形状来增强自主任务规划.

关键词:
小行星小行星小行星变形变形的过程中.程序生成过程生成小的身体小的身体

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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Creating Objects and Object Categories for Studying Perception and Perceptual Learning

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Miniaturized Sample Preparation for Transmission Electron Microscopy

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相关实验视频

Last Updated: Jun 23, 2025

A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures
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A Rapid, Simple Workflow for Quantification of External Adult Drosophila Structures

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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Creating Objects and Object Categories for Studying Perception and Perceptual Learning

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Miniaturized Sample Preparation for Transmission Electron Microscopy
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Miniaturized Sample Preparation for Transmission Electron Microscopy

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科学领域:

  • 行星科学 行星科学
  • 计算机图形 计算机图形
  • 机器人技术 机器人技术 机器人技术

背景情况:

  • 由于小物体的形状和表面不可预测,航天器运行面临着挑战.
  • 不准确的地面估计进一步使导航和任务规划复杂化.
  • 在太空探索中对自主系统的需求正在增加.

研究的目的:

  • 开发一种程序工具,用于生成小物体的多样化和现实的3D模型.
  • 为在各种形态条件下测试和验证导航技术提供资源.
  • 为了解决任务设计中模拟小物体特征的局限性.

主要方法:

  • 小人体测量工具 (MONET) 是使用开源的3D计算机图形软件开发的.
  • MONET通过添加诸如石坑,巨石和表面粗度等特征来程序性地修改一个基本的3D网格.
  • 该工具生成光现实模型,包括废墟堆和彗星类形态,具有用户可调节的参数.

主要成果:

  • 货币成功地产生了各种各样的小体形状和表面特征.
  • 生成的模型提供适合模拟的光现实表示.
  • 该工具可以创建不同的模型家族,例如废墟堆和彗星样物体.

结论:

  • 货币提供了一个灵活和有价值的资源,用于模拟小人体环境.
  • 该工具有助于测试用于太空任务的引导和导航系统的适应性.
  • 它支持研究人员和工程师为各种小物体探索场景做准备.