Edge Dislocation

An edge dislocation is a line defect in a crystal lattice formed when an extra half-plane of atoms terminates within the structure, producing localized strain and disrupting ideal periodicity. Under an applied shear stress, the defect can glide through the lattice as neighboring bonds break and reform, causing plastic deformation; its Burgers vector lies perpendicular to the dislocation line. In chemistry and materials research, edge dislocations help explain crystal growth, mechanical strength, diffusion, and reactivity in metals, ceramics, semiconductors, and ionic solids, while controlling defect density can improve performance in engineered materials.

Edge Dislocation - Related Videos

Education

JoVE Science Education - Clinical Skills

Intra-articular Shoulder Injection for Reduction Following Shoulder Dislocation

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2023

Source: Rachel Liu, BAO, MBBCh, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA The anterior shoulder dislocation is one of the most common joint dislocations seen in emergency settings. In anterior shoulder dislocation, the humeral head is displaced out of the glenohumeral joint in front of the scapular glenoid, resulting in a loss of the articulation between the arm and the rest of the shoulder. This can be caused by a fall onto an abducted, extended, and externally...

Research

JoVE Journal - Biology

Identification of Pre-weanling 7-Day-Old Mice with Pinna Edge Biopsies

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2025

The protocol presents a novel stepwise approach to producing a pinna-edge biopsy (PEB) in post-natal day (PND) 7 mice for the purpose of identification and simultaneous genotyping.

Research

JoVE Journal - Bioengineering
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Specimen Preparation, Imaging, and Analysis Protocols for Knife-edge Scanning Microscopy

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Cited by 15 •

2011

The full process from brain specimen preparation to serial sectioning imaging using the Knife-Edge Scanning Microscope, to data visualization and analysis is described. This technique is currently used to acquire mouse brain data, but it is applicable to other organs, other species.

Flow Visualization in a Water Tunnel: Observing the Leading-edge Vortex Over a Delta Wing

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2023

Source: Jose Roberto Moreto, Gustaaf Jacobs and Xiaofeng Liu, Department of Aerospace Engineering, San Diego State University, San Diego, California The delta wing, shown in Figure 1D, is a popular design in high-speed airplanes due to its superb performance in transonic and supersonic flight regimes. This type of wing has a small aspect ratio and high sweep angle, which reduces drag at high subsonic, transonic and supersonic flight regimes. The aspect ratio is defined as the wing span divided...

Quantitative Analysis of Cell Edge Dynamics during Cell Spreading

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Cited by 3 •

2021

In this protocol, we present the experimental procedures of a cell spreading assay that is based on live-cell microscopy. We provide an open-source computational tool for the unbiased segmentation of fluorescently labeled cells and quantitative analysis of lamellipodia dynamics during cell spreading.

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