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

Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
Induced Electric Dipoles01:28

Induced Electric Dipoles

A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
Voltammetric Techniques: Linear-Scan (E vs Time)01:12

Voltammetric Techniques: Linear-Scan (E vs Time)

Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping mercury electrode (DME), and the resulting current is measured. A dropping mercury electrode is commonly used as the working electrode in polarography. It consists of a capillary tube filled with mercury, where the tiny droplet forms at the tip. This droplet continuously drops from the capillary, creating a new electrode surface for each...
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential ensures...

You might also read

Related Articles

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

Sort by
Same author

Short term complications and risk factors of unilateral biportal endoscopic cervical spine surgery in patients with cervical radiculopathy and myelopathy: a single center retrospective study.

Frontiers in medicine·2026
Same author

Comparative analysis of single vs. double cage insertion in unilateral biportal endoscopic lumbar interbody fusion: clinical and radiological outcomes.

Frontiers in surgery·2026
Same author

Harnessing the yeast nucleus for the efficient production of valuable monoterpenes.

Metabolic engineering·2026
Same author

Biosynthesis of 10-Hydroxy-2-Decenoic Acid in Escherichia coli.

Metabolic engineering·2025
Same author

Characteristic Study of a Typical Satellite Solar Panel under Mechanical Vibrations.

Micromachines·2024
Same author

Degradable living plastics programmed by engineered spores.

Nature chemical biology·2024

Related Experiment Video

Updated: Jun 26, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

Landfill leakage location based on an induced polarization method.

Yayu Chen1,2, Shibin Liu1,2, Chaozhi Cai1,2

  • 1School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan, 056038, China.

Environmental Monitoring and Assessment
|June 25, 2026
PubMed
Summary

Accurate detection of high-density polyethylene membrane leakages is crucial for landfill sustainability. This study introduces an induced polarization method for precise leak location, ensuring environmental safety and groundwater protection.

Keywords:
Adaptive particle swarm optimization algorithmHigh-density polyethylene membraneInduced polarization effectLeakage detectionPolarizability inversion

More Related Videos

Measuring the Induced Membrane Voltage with Di-8-ANEPPS
05:52

Measuring the Induced Membrane Voltage with Di-8-ANEPPS

Published on: November 19, 2009

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

Related Experiment Videos

Last Updated: Jun 26, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

Measuring the Induced Membrane Voltage with Di-8-ANEPPS
05:52

Measuring the Induced Membrane Voltage with Di-8-ANEPPS

Published on: November 19, 2009

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

Area of Science:

  • Geotechnical Engineering
  • Environmental Monitoring
  • Geophysics

Background:

  • Landfill integrity is vital for environmental protection.
  • Leakages in high-density polyethylene membranes pose risks to groundwater and ecosystems.
  • Accurate detection methods are needed for sustainable landfill operation.

Purpose of the Study:

  • To develop and validate a novel method for detecting and locating leakages in high-density polyethylene membranes.
  • To enhance the accuracy and efficiency of landfill membrane integrity assessment.
  • To provide a reliable solution for safeguarding groundwater resources.

Main Methods:

  • Utilized the induced polarization method for leakage detection.
  • Employed an electrode array and periodic direct-current pulse signal for data collection.
  • Developed a polarizability inversion model using a 3D grid discretization and regularization constraints.
  • Implemented a combined adaptive particle swarm optimization and limited-memory Broyden-Fletcher-Goldfarb-Shanno algorithm for improved accuracy.

Main Results:

  • Successfully identified and located leakages in high-density polyethylene membranes.
  • Achieved high accuracy with maximum and minimum deviations of 8.6 cm and 6.9 cm, respectively.
  • Demonstrated that the method meets engineering error requirements for practical application.

Conclusions:

  • The proposed induced polarization-based technology offers an efficient and reliable solution for detecting leakages in landfill membranes.
  • This method significantly contributes to protecting groundwater quality and promoting ecologically sustainable development.
  • Accurate leakage detection is essential for the long-term safety and environmental compliance of landfills.