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Related Concept Videos

Lumber Defects01:23

Lumber Defects

Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Circular Shaft - Stresses in Linear Range01:13

Circular Shaft - Stresses in Linear Range

Consider a scenario where a circular shaft is subject to torque that remains within the boundaries of Hooke's Law, avoiding any permanent deformation. So, the formula for shearing strain is revisited. This formula is multiplied by the modulus of rigidity, and then Hooke's Law for the shearing stress and strain is applied. As a result, the equation for shearing stress in a shaft can be derived.
Errors in Taping01:18

Errors in Taping

Errors in taping arise from multiple factors that can significantly impact measurement accuracy in surveying. Misalignment of the tape, often due to human error, is one primary source. A skilled rear tapeman, using a telescope, can help correct alignment by guiding the head tapeman; however, human limitations still lead to small inaccuracies. These errors may include misplacement of pins or inaccurate tape readings due to common visual confusions, such as mistaking a six for a nine. Such...
Reducing Line Loss01:18

Reducing Line Loss

In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
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Steel Fastening Techniques01:17

Steel Fastening Techniques

Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
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Fixing Double-strand Breaks02:04

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The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...

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Related Experiment Video

Updated: Jul 4, 2026

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates
07:53

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates

Published on: April 27, 2019

Staple line failure using the Proximate 100 mm linear cutter.

J Wind1, F Safiruddin, M I van Berge Henegouwen

  • 1Department of Surgery, Academic Medical Center, P.O. Box 22660, 1100 DD, Amsterdam, The Netherlands.

Diseases of the Colon and Rectum
|June 5, 2008
PubMed
Summary

Linear cutters may create incomplete staple lines if tissue is advanced too far. This risk exists even with 100 mm devices, potentially compromising surgical integrity.

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Area of Science:

  • Surgical device integrity
  • Gastrointestinal surgery

Background:

  • Linear cutters are used in gastrointestinal surgery to create staple lines.
  • An observed incomplete staple line prompted an investigation into linear cutter performance.

Observation:

  • Testing involved cross-stapling and transecting porcine large bowel with three linear cutter sizes.
  • Tissue advancement to the maximum scale marking on a 100 mm device resulted in insufficient staple line overlap.

Findings:

  • The 100 mm linear cutter may fail to form a complete double-staggered staple row at the proximal end.
  • Advancing tissue beyond the 9.5 cm mark on the 100 mm device scale increases this risk.

Implications:

  • Surgeons must be aware of tissue placement limitations with linear cutters to ensure staple line integrity.
  • Device manufacturers are adding visual cues to improve user guidance and prevent incomplete staple lines.