相关实验视频

Updated: Jul 1, 2025

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
03:07

Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses

Published on: October 11, 2024

502

用SEM检查切割痕迹残留物以确定金属工具使用情况:一项实验性研究

Francesc Marginedas1, Josep Maria Vergès1, Palmira Saladié2

  • 1Institut Català de Paleoecología Humana i Evolució Social (IPHES-CERCA), Zona Educacional 4 (Edifici W3), Campus Sescelades URV, Tarragona 43007, Spain; Área de Prehistòria, Universitat Rovira i Virgili (URV), Avinguda de Catalunya 35, Tarragona 43002, Spain.

Micron (Oxford, England : 1993)
|March 8, 2024
PubMed
概括

这项研究表明,铜和铜刀的金属残留物可以在古代骨切割痕迹中检测到. 这种方法有助于识别考古发现中早期金属工具的使用情况.

关键词:
考古学的考古学青铜刀 青铜刀 青铜刀铜刀 铜刀 铜刀双BSD是一个双BSD.微观分析 微观分析塔法诺米 (Taphonomy) 是一种听音系统.

更多相关视频

Identification of Metal Oxide Nanoparticles in Histological Samples by Enhanced Darkfield Microscopy and Hyperspectral Mapping12:19

Identification of Metal Oxide Nanoparticles in Histological Samples by Enhanced Darkfield Microscopy and Hyperspectral Mapping

Published on: December 8, 2015

12.5K
Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys12:18

Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys

Published on: June 27, 2022

2.6K

相关概念视频

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
4.2K
Preparation of Samples for Electron Microscopy01:20

Preparation of Samples for Electron Microscopy

To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
5.4K