Transfer functions were calculated at 64 MHz for different lengths of model implants in the form of bare wires and insulated wires with 1 cm of wire
Coal pores and fractures vary in geometric structure, size distribution, and compressibility in different directions, referred to as the anisotropy of coal pores and fractures (APF). For high-dip
CST Studio Suite is a commercial program that is available through the Dassault Systèmes channels. However, there is a free version: The CST Studio Suite
A magnetic resonance wireless power transfer system based on flexible 3D dual-coil is proposed and implemented in this paper. Firstly, a
In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.
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We provide a complete, yet simple, theoretical analysis of the homogeneous sphere in a uniform RF field and summarize expressions for the current density, power dissipation, and magnetic
In many studies concerning wire heating during MR imaging, a “resonant wire length” that maximizes RF heating is determined. This may lead
Low-field magnetic resonance imaging (MRI) has become increasingly popular due to cost reduction, artifact minimization, use for
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Figure 21.1: A simple resonator can be made by terminating a transmission line with two reactive loads at its two ends, the source end with ZS and the load end with ZL.
The most prominent techniques are X-ray crystallography, nuclear magnetic resonance, and electron microscopy. Through the discovery of X-rays and its
Each wire loop element was divided into three segments to allow discrete distribution of the overall tuning capacitance (Series 11; Knowles Capacitors), for a balanced E-field distribution
Shortened dipole antennas based on rectangular dielectric blocks play an important role in ultrahigh field magnetic resonance imaging (UHF-MRI)
Instead of altering thickness or spacing, one can add a third parallel wire to increase the feedpoint impedance to 9 times that of a single-wire dipole, raising the
We describe the realization of a homemade and portable setup to perform experiments of pulsed magnetic resonance of nitrogen-vacancy (NV)
Yamaguchi, S., Watanabe, M. & Hattori, Y. Statistical parametric mapping of three-dimensional local activity distribution of skeletal muscle using magnetic resonance imaging (MRI).
We present a radio-frequency-activated switching system that can automatically detune a metamaterial resonator to enhance magnetic resonance imaging (MRI) performance.
In this work, we investigate a novel coil design that aims at achieving some benefits of coil arrays as compared to large single loop coils (SLCs), i.e.,
MAGNETIC RESONANCE IMAGING (MRI) scanners utilize static and time-varying electromagnetic (EM) fields to image human subjects. Even
There are four parameters to look at this equivalent circuit: inductance (L), resistance (R), capacitance (C), and conductance (G).
Abstract Magnetic resonance imaging (MRI) is a major imaging modality, giving access to anatomical and functional information with high
16Van Damme L, Mauconduit F, Chambrion T, Boulant N, Gras V. Universal nonselective excitation and refocusing pulses with improved
As a starting point, Figure II-1 lists some ideas on creating an ideal environment for magnetic resonance imaging. This information from an early General Electric Planning Guide (II), illustrates the breadth of
The influence of ferroresonance on the distribution system is crucial because the distribution system is the network''s closest part to the consumer,
Remotely detuned receiver coil for high-resolution interventional cardiac magnetic resonance imaging Sina Marhabaie 1 † Marylène Delcey 2,3 †
If we now connect this wire to a source of high-frequency alternating current, this current will couple energy into the electric and magnetic fields of the cavity and keep the oscillations going.
Also known as magnetic flux density, the magnetic B field causes magnetic forces, magnetic torques and electromagnetic induction. Therefore, it can be defined by
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