magnetic gradient

magnetic gradient

An MRI term for the degree and direction of the linear rate of change of a magnetic field in space, which is one of three linear magnetisation waveforms superimposed on the main magnetic field at specific times within a pulse sequence to select the imaging region or provide necessary spatial localising information.
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Work planned over the next 2-3 months will include: continued mapping and sampling of veins and alteration zones; soil sampling in areas of overburden cover; 650 line-km of heliborne magnetic gradient survey.
The background magnetic field, often termed the open bore field, represents the driving force that produces the amplified high magnetic gradient throughout the matrix.
Wynn [1] proposed a method of magnetic dipole localization based on the magnetic gradient. Nara et al.
This variation can be explained because the magnetic gradient generated by the separation structure can only attract labeled cells within a limited distance.
This behaviour of flame species that depends on the volume of magnetic susceptibility of paramagnetic and diamagnetic flame species ([[xi].sub.v]), magnetic induction (B) and magnetic gradient (dB/ dL) can be used as a tool to control combustion.
The southwestern corner of this belt is occupied by an elongated negative closure with low frequency and low amplitude (blue colored); moreover, the NW-SE moderately positive magnetic belt, lies between the two negative anomalies and the moderately steep magnetic gradient delimits the previous southern negative magnetic belt and the northern positive magnetic belt.
Cai, "Airlines plane magnetic gradient measurement system installation and compensation," Geophysical and Geochemical Exploration, vol.
Subsequently, the external magnetic gradient enables and enhances the movement of the therapeutic-nanoparticle complex into the tumor environment where the drug is “activated,” resulting in a significant anti-tumor response.
The microbots will navigate towards the direction of an externally exerted magnetic gradient and its movement could potentially be tracked by using the differential microwave imaging (DMI) algorithm proposed in [11].
Called the VG (vertical magnetic gradient) and TEM (electromagnetic) systems, these technologies were developed to safely find dangerous buried metallic objects, specifically UXO (unexploded ordnance).
The potential for significantly higher velocities can be obtained with stronger magnetic fields and more precise shaping of the magnetic field along the axis for a greater magnetic gradient. Designing an ECR chamber so that ions will be generated in areas contributing to higher velocities will improve performance.
With the idea to measure the vertical magnetic gradient in different points on the zone of interest, two sensors separated a distance 1 m on a system of aluminum tubes for the easy handling on the land, were used (Fig.