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

Maximum Deflection01:13

Maximum Deflection

1.0K
When analyzing beams under unsymmetrical loads, such as a train moving on a bridge, it is crucial to accurately determine the points of maximum stress and deflection. The process involves identifying the maximum deflection of the beam, which may not always occur at its midpoint due to the uneven distribution of the load.
The maximum deflection occurs at a specific point, known as point O, where the tangent to the deflection curve is horizontal. To find point O, the slope of the tangent at any...
1.0K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

1.7K
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
1.7K
Maximum Power Transfer01:16

Maximum Power Transfer

843
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
843
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

679
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
679
Atomic Structure01:33

Atomic Structure

207.3K
Overview
207.3K
Atomic Mass01:52

Atomic Mass

69.7K
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which...
69.7K

You might also read

Related Articles

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

Sort by
Same author

Impedance tube sound absorption measurements of additively manufactured metamaterials: A systematic study of design parameter influences.

The Journal of the Acoustical Society of America·2026
Same author

Polymorphic LiZnSbO<sub>4</sub> with orthorhombic and monoclinic phases for the efficient photocatalytic degradation of RhB and tetracycline in wastewater.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Broadband Radiative Heat Transfer Suppression via Dispersion-Engineered Metasurfaces.

Nature communications·2026
Same author

Detection of NADH/NAD<sup>+</sup> dysregulation in MELAS via diazo-carboxyl click derivatization mass spectrometry.

Clinica chimica acta; international journal of clinical chemistry·2026
Same author

Human peripheral nerve xenografts and rat peripheral nerve allografts implanted to the striatum: Methodology and initial findings of cell-based therapy.

Journal of neuroscience methods·2026
Same author

Inhibition of KDM5A alleviates ferroptosis in myocardial infarction via the GDF15-GPX4 axis.

Acta biochimica et biophysica Sinica·2026
Same journal

Sub1 contributes to heart failure with preserved ejection fraction driven by aging in mice.

Nature communications·2026
Same journal

The BRCA1-A complex restricts replication fork reversal-dependent DNA repair in ATM deficient cells.

Nature communications·2026
Same journal

Signaling downstream of tumor-stroma interaction regulates mucinous colorectal adenocarcinoma apicobasal polarity.

Nature communications·2026
Same journal

Click-polymerized polyenamine membranes for efficient lithium extraction.

Nature communications·2026
Same journal

Joint trajectories of brain atrophy, white matter hyperintensities and cognition quantify brain maintenance.

Nature communications·2026
Same journal

Proton shuttling at electrochemical interfaces under alkaline hydrogen evolution.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Jan 22, 2026

Enhancement Method of Surface Acoustic Wave-Atomizer Efficiency for Olfactory Display
08:06

Enhancement Method of Surface Acoustic Wave-Atomizer Efficiency for Olfactory Display

Published on: November 14, 2018

8.4K

Acoustic meta-atom with experimentally verified maximum Willis coupling.

Anton Melnikov1,2,3,4, Yan Kei Chiang5, Li Quan6

  • 1Vibroacoustics of Vehicles and Machines, Technical University of Munich, Garching b. Munich, 85748, Germany. anton.melnikov@tum.de.

Nature Communications
|July 19, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel acoustic meta-atom that approaches the theoretical limit for Willis coupling. This simpler design minimizes losses and offers tunable acoustic properties for advanced applications.

More Related Videos

Protocol for Isolating the Mouse Circle of Willis
06:30

Protocol for Isolating the Mouse Circle of Willis

Published on: October 22, 2016

13.6K
Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
12:26

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

17.8K

Related Experiment Videos

Last Updated: Jan 22, 2026

Enhancement Method of Surface Acoustic Wave-Atomizer Efficiency for Olfactory Display
08:06

Enhancement Method of Surface Acoustic Wave-Atomizer Efficiency for Olfactory Display

Published on: November 14, 2018

8.4K
Protocol for Isolating the Mouse Circle of Willis
06:30

Protocol for Isolating the Mouse Circle of Willis

Published on: October 22, 2016

13.6K
Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
12:26

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

17.8K

Area of Science:

  • Acoustic metamaterials
  • Wave phenomena
  • Metasurfaces

Background:

  • Acoustic metamaterials offer unique properties for controlling sound waves.
  • Willis coupling, analogous to electromagnetic bianisotropy, enhances metamaterial efficiency.
  • Theoretical upper limits exist for Willis coupling in passive acoustic meta-atoms.

Purpose of the Study:

  • To experimentally investigate and realize acoustic meta-atoms that approach the theoretical limit of Willis coupling.
  • To introduce a simpler meta-atom design with reduced thermo-viscous losses.
  • To enable precise control over Willis coupling strength and peak frequency.

Main Methods:

  • Design and fabrication of a novel acoustic meta-atom.
  • Two-dimensional experimental measurements to quantify Willis coupling.
  • Numerical calculations to support experimental findings.
  • Analytical modeling of the meta-atom geometry.

Main Results:

  • The developed meta-atom demonstrates Willis coupling approaching the theoretical maximum.
  • The structure is simpler and exhibits lower thermo-viscous losses than prior designs.
  • Experimental and numerical results confirm strong Willis coupling.
  • Analytical model allows for easy control over coupling strength and frequency.

Conclusions:

  • The study presents a practical realization of acoustic meta-atoms with near-maximal Willis coupling.
  • The simplified design offers enhanced performance and tunability for acoustic applications.
  • This work paves the way for advanced acoustic devices leveraging strong Willis coupling.