Results 241 to 250 of about 437,141 (298)

Magnetic Beads With High Saturation Magnetization

IEEE Transactions on Magnetics, 2007
Magnetic beads with the core-shell structure of an iron core encapsulated by titanium oxide and silica shell layers were prepared. The beads, HMM-beads, exhibited soft magnetic properties with high magnetization of 105 Amiddotm2/kg and low coercitivity of ~4 kA/m. HMM-beads with a diameter of 3 mum showed DNA isolation performance comparable to that of
Yasushi Kaneko, Hisato Tokoro, Takashi Nakabayashi, Mariko Adachi, Shigeo Fujii   +4 more
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Magnetization Near Saturation in Polycrystalline Ferromagnets

Physical Review, 1941
An important mechanism involved in the variation of the magnetization of ferromagnets near saturation is the rotation of the magnetization vector under the combined influence of the magnetic field and crystalline anisotropy torques. The effect of this mechanism in polycrystalline specimens has been calculated by Akulov and Gans; their result is ${M}_ ...
Holstein, T., Primakoff, H.
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Self-saturation in magnetic amplifiers

Electrical Engineering, 1949
SATURABLE reactors, in their simpler forms, have been used in controlling many types of equipment. As is known, control is effected by adjustment of the reactor impedance with d-c premagnetization. The a-c windings are so connected that no fundamental component of power-frequency voltage appears in the d-c control winding.
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Discrete tracks for saturation magnetic recording

Proceedings of the IEEE, 1963
Discrete-track recording is a magnetic-recording method which employs a single-gap head and a discrete-track medium to increase the head-repositioning tolerance in saturation digital recording. A head with a conventional ring structure may be used. The recording medium consists of discrete magnetic tracks separated by nonmagnetic lands.
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On the saturation field of magnets

Journal of Magnetism and Magnetic Materials, 2004
Three small comments on the saturation field for magnetization curves of magnets are noted. The saturation field is generally formulted for magnets with translational invariance, so that one can calculate the coupling constant J of magnets from magnetization measurements up to the saturating point. An upperbound for more general cases and an inequality
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Nuclear Magnetic Resonance Saturation and Rotary Saturation in Solids

Physical Review, 1955
Nuclear spin-lattice relaxation times of ${\mathrm{Al}}^{27}$ in pure Al and ${\mathrm{Cu}}^{63}$ in annealed pure Cu have been measured with a nuclear induction spectrometer, by the method of saturation. The experimental values of ${T}_{1}$ are 4.1\ifmmode\pm\else\textpm\fi{}0.8 milliseconds for ${\mathrm{Al}}^{27}$ and 3.0\ifmmode\pm\else\textpm\fi ...
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An algorithm for modeling saturating magnetic devices

Proceedings of the June 1970 design automation workshop on Design automation - DAC '70, 1970
Nonlinear magnetic devices present complexities in circuit analysis that are not readily solved by conventional techniques. Two algorithms are developed that provide computer-aided techniques for the classical problems of saturation, hystersis and the multicircuit device.
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Approach to Saturation in Inhomogeneous Magnetic Materials

Journal of Applied Physics, 1971
The Néel theory of the approach to saturation in inhomogeneous magnetic materials is critically reviewed. It is found that the theory is rigorously applicable when the local saturation magnetization differs only slightly from its spatial average, but that this condition is not satisfied in porous materials or in material containing inclusions of a ...
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Saturation Magnetization of Swaged Mn–Al

Journal of Applied Physics, 1962
Two years ago remarkable properties were reported for a new alloy based on manganese and aluminum. The value for saturation magnetization in Mn=Al had been extrapolated to infinite magnetizing field and was given as 6200 gauss. Our measurements indicate that the extrapolated figure is too low.
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Effects of magnetic saturation

1998
Abstract In this chapter the effects of main flux saturation the equations required for the various implementations of vector control (e.g. rotor-flux-oriented control, magnetizing-flux-oriented control, stator-flux-oriented control) are discussed for both smooth-air-gap and salient-pole machines.
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