Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Nuclear Transmutation

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...

Transmission Line Design Considerations

Transmission Line Design Considerations

Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...

Directionality of Nuclear Transport

Directionality of Nuclear Transport

Ras-related nuclear protein or Ran is a small G protein that cycles between its GTP and GDP bound states. Ran specific regulators, a Ran GTPase Activating Protein or RanGAP present in the cytosol and a Ran guanine nucleotide exchange factor or RanGEF present inside the nucleus regulate GTP/GDP exchange. A high concentration of GTP inside the cells, in addition to this asymmetric distribution of Ran-specific regulators, leads to a higher RanGTP concentration inside the nucleus. This...

Transducer Mechanism: Nuclear Receptors

Transducer Mechanism: Nuclear Receptors

Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:

Nuclear Power

Nuclear Power

Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...

Transmission Electron Microscopy

Transmission Electron Microscopy

In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400 keV in...

You might also read

Related Articles

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

Sort by

Same author

Clinical neuropsychological evaluation of patients referred from a post-COVID subspeciality clinic.

The Clinical neuropsychologist·2026

Same author

Deep Learning-Based Synthetic Contrast-Enhanced Breast MRI for Monitoring Response to Neoadjuvant Therapy.

Cancers·2026

Same author

Comparison of Retrospective Motion Compensation Techniques for Pulmonary Dynamic Ultrashort Time to Echo MRI in Suspected Idiopathic Pulmonary Fibrosis.

Journal of magnetic resonance imaging : JMRI·2026

Same author

Reducing scan time burden for neonatal MRI of pulmonary structure using FLORET UTE.

Magma (New York, N.Y.)·2026

Same author

Quantitative Understanding of Advanced Novel Imaging Techniques for Fasciitis and Biosignature Yield (Quantify): Protocol for a Cross-Sectional Diagnostic Study.

JMIR research protocols·2026

Same author

Long COVID: lung pathophysiology and its relationship with cognitive dysfunction.

Scientific reports·2025

Search research articles

Related Experiment Video

Updated: Jul 11, 2026

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

Published on: January 16, 2021

TEM transmission line coil with double nuclear capability.

Matthew G Erickson¹, Krishna N Kurpad, James H Holmes

¹Department of Radiology, University of Wisconsin, Madison, Wisconsin 53792, USA. gyromagnetic1@yahoo.com

Magnetic Resonance in Medicine

|September 28, 2007

Summary

Researchers developed a novel quadrature volume coil using a modified coaxial transmission line for homogeneous radiofrequency fields in magnetic resonance imaging (MRI). This "pure" TEM coil design offers improved performance for advanced MRI applications.

Related Experiment Videos

Last Updated: Jul 11, 2026

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

Published on: January 16, 2021

Area of Science:

Magnetic Resonance Imaging (MRI)
Radiofrequency (RF) Coil Technology
Medical Physics

Background:

High homogeneity of radiofrequency (RF) fields is critical for MR imaging and spectroscopy.
Existing quadrature volume coils like birdcage and TEM resonators have limitations.
Need for advanced coil designs to meet stringent homogeneity requirements in MRI.

Purpose of the Study:

To design and evaluate a novel quadrature volume coil based on a modified coaxial transmission line.
To achieve high RF field homogeneity for improved MR imaging and spectroscopy.
To report on the construction and performance of a prototype coil.

Main Methods:

Designed a quadrature volume coil using a modified coaxial transmission line with multiple inner conductors and a common shield.
Utilized series transmission line stubs (open or short circuit) to establish current antinodes.
Employed a novel circuit with current baluns and a quadrature hybrid for phasing.
Constructed a prototype four-element coil and a related double nuclear coil for (3)He/(1)H.

Main Results:

The developed coil functions as a 'pure' TEM coil, simplifying mode structure considerations.
Preliminary tests of the prototype quadrature coil at 4.7T showed promising results.
A double nuclear coil for (3)He and (1)H demonstrated simultaneous tuning and matching at 1.5T.

Conclusions:

The modified coaxial transmission line quadrature volume coil is a viable alternative for achieving high RF field homogeneity in MRI.
The 'pure' TEM coil design offers advantages in simplicity and performance.
The reported coil designs show potential for advanced spectroscopic and imaging applications.