Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Transcription Attenuation in Prokaryotes02:42

Transcription Attenuation in Prokaryotes

18.2K
Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure.  Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
18.2K
Vibrating Concrete01:19

Vibrating Concrete

379
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...
379
Resonance02:52

Resonance

64.7K
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N-O and N=O bonds.
64.7K
Frequency-dependent Selection01:21

Frequency-dependent Selection

23.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
23.1K
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

4.6K
When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
4.6K
What is a Frequency Distribution00:51

What is a Frequency Distribution

26.2K
A frequency is the number of times a value of the data occurs. The sum of all the frequency values represents the total number of students included in the sample. It is commonly used to group data of quantitative types. Frequency distributions can be displayed in a table, histogram, line graph, dot plot, or pie chart, just to name a few. A histogram is a graphical representation of tabulated frequencies, shown as adjacent rectangles, erected over discrete intervals (bins), with an area equal to...
26.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Cognitive decline outweighs adiposity in influencing lower limb gait kinematics in older adults.

Gait & posture·2026
Same author

An Interferometric Multi-Sensor Absolute Distance Measurement System for Use in Harsh Environments.

Sensors (Basel, Switzerland)·2025
Same author

[Progress in diagnosis and treatment of cervical spine surgical diseases].

Zhonghua wai ke za zhi [Chinese journal of surgery]·2025
Same author

Complex Regional Pain Syndrome Following Minor Burns: A Rare but Significant Complication.

Journal of burn care & research : official publication of the American Burn Association·2025
Same author

IL-36 Regulates Neutrophil Chemotaxis and Bone Loss at the Oral Barrier.

Journal of dental research·2024
Same author

Stitching Locally Fitted T-Splines for Fast Fitting of Large-Scale Freeform Point Clouds.

Sensors (Basel, Switzerland)·2023

Related Experiment Video

Updated: Jan 21, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
09:39

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

1.5K

Three-dimensional resonating metamaterials for low-frequency vibration attenuation.

W Elmadih1, D Chronopoulos2, W P Syam3

  • 1Manufacturing Metrology Team, Faculty of Engineering, University of Nottingham, Nottingham, NG8 1BB, UK. Waiel.Elmadih@Nottingham.ac.uk.

Scientific Reports
|August 10, 2019
PubMed
Summary

Additive manufacturing enables new metamaterials with tunable 3D stopbands for elastic wave control. These phononic crystals offer lower frequencies and smaller sizes than traditional designs.

More Related Videos

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.9K
Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

8.1K

Related Experiment Videos

Last Updated: Jan 21, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
09:39

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

1.5K
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.9K
Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

8.1K

Area of Science:

  • Materials Science
  • Acoustics
  • Mechanical Engineering

Background:

  • Additive manufacturing allows complex phononic crystal and metamaterial designs.
  • These materials exhibit spectral gaps (stopbands) that block elastic wave propagation via Bragg scattering or local resonance.
  • Metamaterial properties are tunable by altering the unit cell design.

Purpose of the Study:

  • To introduce a novel design approach for metamaterials with internal resonators.
  • To demonstrate a three-dimensional stopband across the irreducible Brillouin zone.
  • To achieve lower frequency stopbands than Bragg scattering alone or reduced dimensions.

Main Methods:

  • Developing a new metamaterial design incorporating internal resonators.
  • Utilizing numerical simulations to predict and analyze stopband behavior.
  • Conducting experimental validation of the designed metamaterials.

Main Results:

  • Confirmed the existence of a three-dimensional stopband over the irreducible Brillouin zone.
  • Achieved significantly lower stopband frequencies compared to Bragg-type phononic crystals.
  • Demonstrated tunability of the stopband frequency range by modifying the metamaterial design.

Conclusions:

  • The proposed metamaterial design effectively creates tunable, low-frequency, three-dimensional stopbands.
  • These metamaterials offer advantages in achieving desired elastic wave control in smaller volumes or at lower frequencies.
  • Potential applications include aerospace, transport, and precision engineering components requiring vibration suppression.