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Related Concept Videos

Vibrating Concrete01:19

Vibrating Concrete

456
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
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Vebe Test01:22

Vebe Test

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The Vebe test is a method used to measure the workability of concrete, particularly effective for dry concrete mixes. This test employs a specific apparatus that includes a cylindrical chamber, a standard slump cone, and a transparent disc-shaped rider, all mounted on a vibrating table. The cylindrical chamber has dimensions of nine and a half inches in diameter and eight inches in height.
To conduct the test, concrete is placed into the slump cone. The concrete is filled in layers and...
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Related Experiment Video

Updated: Mar 9, 2026

A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
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Reliability of Vibrating Mesh Technology.

Ashwin A Gowda1, Ann D Cuccia2, Gerald C Smaldone3

  • 1Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, State University of New York at Stony Brook, Stony Brook, New York ashwin.gowda@stonybrook.edu.

Respiratory Care
|December 23, 2016
PubMed
Summary
This summary is machine-generated.

The Aerogen Solo vibrating mesh nebulizer showed a high failure rate during mechanical ventilation, often stopping prematurely and leaving significant residual medication. This impacts its reliability for consistent aerosol delivery.

Keywords:
aerosolefficiencymechanical ventilationnebulizerresidual volumerun time

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Area of Science:

  • Respiratory Medicine
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Vibrating mesh nebulizers offer efficient aerosol delivery for inhaled therapies.
  • They are advantageous over jet nebulizers due to lack of gas flow requirement.
  • Reliability assessment of the Aerogen Solo for mechanical ventilation is crucial.

Purpose of the Study:

  • To evaluate the reliability and performance of the Aerogen Solo vibrating mesh nebulizer.
  • To determine the failure rate and residual volume of the Aerogen Solo during simulated use.
  • To assess the impact of different controllers on nebulizer function.

Main Methods:

  • An observational study with 6 nebulizers using saline and distilled water.
  • An experimental protocol with 20 nebulizers and 2 controllers.
  • Measurement of run time, residual volume via gravimetric techniques, and failure rate defined as >10% residual volume.

Main Results:

  • A significant failure rate of 25% in the observational and 30% in the experimental protocol.
  • Failed runs had a high average retained volume (36% ± 21.3%) compared to successful runs (3.2% ± 1.5%).
  • Nebulization time varied significantly between different controllers.

Conclusions:

  • The Aerogen Solo vibrating mesh nebulizer demonstrated frequent, random interruptions in aerosol production.
  • A wide range of residual volumes were observed in failed nebulization cycles.
  • The device's reliability for consistent aerosol delivery in mechanical ventilation requires further investigation.