Characterization of magnetic flux density in passive sources used in magnetic stimulation

Torres, J.; Hincapie, E.; Gilart, F.

doi:10.1016/j.jmmm.2017.10.037

Cited by 6 publications

(1 citation statement)

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“…Given that it must be clear that there is always some degree of heterogeneity in the spatial distribution of the magnetic field, which, when categorized in percentage terms from highest to lowest, appears with higher percentage in toroidal magnets, followed by cylindrical rods, solenoids, electromagnets and in much lower percentage in Helmholtz coils. For example, when comparing the images presented in Figure 1b and Figure 4, it can be observed that there is a magnetic field with high homogeneity in the electromagnet, while in toroidal magnets magnetic gradient values are very high besides a variation in the polarity can be observed, which suggests very different experiments (Torres, Hincapie, & Gilart, 2018). But, in order to have a high homogeneity value in the electromagnet, the samples must be positioned in the central zone between the cores since, otherwise, this value decreases drastically.…”

Section: Plant Materialsmentioning

confidence: 97%

Favourable and Unfavourable Effect of Homogeneous Static Magnetic Field on Germination of Zea mays L (Maize) Seeds

Torres¹,

Aranzazu-Osorio²

2019

JAS

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The effect of homogeneous static magnetic stimulation on Zea mays L. (maize) seeds and its potential utility as a tool in biotechnological development for the improvement of maize seeds was studied. The values of magnetic flux density that influenced the biological development of some plant species of the Poaceae family were determined from a literature review. ICA V-305 variety corn seeds were exposed to seven values of magnetic flux density between 50.0 mT and 250.0 mT, with homogeneity of 98.4% and at (1.0, 3.0, 5.0 and 7.0) min exposure times. The mean germination time (MGT), index of germination speed (VGer) and germination rate (Gmax) were evaluated as responses. The magnetic flux density of 50.0 mT with a one-minute exposure time recorded the largest reduction (12.4%) in the MGT while the germination rate for the same treatment increased by 17.4% with respect to the control. No significant effects of the magnetic treatment were recorded for the Gmáx . The magnetic treatment of seeds with homogeneous static fields does not have as favourable a response as the treatments with fields with magnetic gradients, that is to say, using toroidal magnets.

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Section: Plant Materialsmentioning

confidence: 97%