Soft magnets are those materials easy to magnetize and demagnetize, while hard magnets are difficult to do so and retain strong magnetism after the removal of applied magnetic field. Hard magnets are also called permanent magnets, which include Neodymium magnets, SmCo magnets, AlNiCo magnets and ...
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The magnetic field has benefits for manipulating droplets compared to other fields. The field’s application doesn’t cause environmental changes like pH, surface charge, or ionic concentration29. Scholars have conducted significant research on using magnetic fields to manipulate ferrofluid droplets25,26,...
Simple expressions can be derived for W when the equilibrium relationship between field and induction in the material is linear, B = µH, and the delayed response to time variations of the field is characterized by the single time constant t. Then, the loss per cycle under sinusoidal field...
The magnetic material on the aircraft has various shapes and complex distribution. In the modeling, it is equivalent to three soft magnetic rods that are only magnetized in the X, Y and Z directions. Due to demagnetization, the induced magnetic field of the soft magnetic bar is in different ...
During the experiment, the required temperature was set in the measuring cell, which was maintained for 10–20 min to stabilize the system, and then the frequency and attenuation coefficient were measured by changing the magnetic field strength. We use the Helmholtz formula to analyze the ...
Adding nano-silver to the mixture of example 1 shows 8-10% improvement for the magnetic field deflection over original formula mixture. EXAMPLE 3 The objective of the experiment was to create a static distortion on a radio. An AM radio and another electronic device were set approximately 12 in...
1. Field of the Invention The present invention relates to a composite metallic magnetic powder and a manufacturing method of the same used for high density magnetic recording, a magnetic painting, magnetic powder for magnetic therapy, and a magnetic recording medium. ...
Toroidal magnetic fieldNon-radial Alfvén oscillationsPulsating white dwarfsIn the context of white dwarf asteroseismology, we investigate the vibrational properties of a non-convective solid star with an axisymmetric purely toroidal intrinsic magnetic field of two different shapes. Focus is laid on the ...
The first and most important step in this direction is to find the expression for f(ḡ) by using Eq. (5.67). We recall that mc(t;ḡ) in this formula corresponds to the precessional dynamics under magnetic field applied along the easy axis. This dynamics has been extensively ...