An electric machine is selectively operated as a transformer for AC voltage operation or as a throttle system for DC voltage operation. A transformer core has two limbs. An additional winding with a first additional partial winding is wound around a first limb and a second additional winding is wound around the second limb. A higher-voltage winding with a first higher-voltage partial winding is wound around the first additional partial winding and a second higher-voltage partial winding is wound around the second additional partial winding. A first traction winding is wound around the first higher-voltage partial winding and a second traction winding is wound around the second higher-voltage partial winding. A first DC voltage winding may be wound around the first traction winding and a second DC voltage winding may be wound around the second traction winding.

The disclosure describes techniques for forming nanoparticles including Fe.sub.16N.sub.2 phase. In some examples, the nanoparticles may be formed by first forming nanoparticles including iron, nitrogen, and at least one of carbon or boron. The carbon or boron may be incorporated into the nanoparticles such that the iron, nitrogen, and at least one of carbon or boron are mixed. Alternatively, the at least one of carbon or boron may be coated on a surface of a nanoparticle including iron and nitrogen. The nanoparticle including iron, nitrogen, and at least one of carbon or boron then may be annealed to form at least one phase domain including at least one of Fe.sub.16N.sub.2, Fe.sub.16(NB).sub.2, Fe.sub.16(NC).sub.2, or Fe.sub.16(NCB).sub.2.

The invention relates to a method for producing an adjusted nanoparticle composition comprising ultra-small superparamagnetic iron oxide nanoparticles coated with dextran-T10, compositions obtained thereby, and uses of such compositions. The adjusted compositions have improved parameters such as lower batch-to-batch variance and improved stability, and are useful as magnetic imaging agents.

A magnetic inductor for heating parts by means of induction having a geometry with a density greater than or equal to 99.9% (absence of pores), produced by a plurality of welded layers formed by metal dust particles of a conductive, non-magnetic material (such as, inter alia, copper, tin, aluminium, gold, or silver), preferably copper or a copper-based alloy, having a spherical shape and a grain size between 40 and 100 μm, and in a single-piece part including electrical and mechanical connections. Also, a method for producing the magnetic inductor with EBM technology (electron beam melting/production technology based on electron beam fusion), using a system comprising an electron gun, a vacuum chamber, a working chamber and a manipulation system.

Radiofrequency and other electronic devices can be formed from textured hexaferrite materials, such as Z-phase barium cobalt ferrite Ba.sub.3Co.sub.2Fe.sub.24O.sub.41 (Co.sub.2Z) having enhanced resonant frequency. The textured hexaferrite material can be formed by sintering fine grain hexaferrite powder at a lower temperature than conventional firing temperatures to inhibit reduction of iron. The textured hexaferrite material can be used in radiofrequency devices such as circulators or telecommunications systems.

Macroporous beads and a method of manufacturing and using such macroporous beads. wherein the beads are distinguishable for use in a multiplex assay. Preferably, the beads are distinguishable by two or more unique fluorochromes, and at least some of the beads are magnetically responsive. In a preferred form, some of the macroporous beads have interior pores with a different moiety from the exterior surface, allowing beads with different attached functional groups.

Macroporous beads and a method of manufacturing and using such macroporous beads. wherein the beads are distinguishable for use in a multiplex assay. Preferably, the beads are distinguishable by two or more unique fluorochromes, and at least some of the beads are magnetically responsive. In a preferred form, some of the macroporous beads have interior pores with a different moiety from the exterior surface, allowing beads with different attached functional groups.

The invention provides for magnetic resonance imaging system (600) comprising a superconducting magnet (100) with a first current lead (108) and a second current lead (110) for connecting to a current ramping system (624). The magnet further comprises a vacuum vessel (104) penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit (106) within the vacuum vessel. The magnet circuit has a first magnet circuit connection (132) and a second magnet circuit connection (134). The magnet further comprises a first switch (120) between the first magnet connection and the first current lead and a second switch (122) between the second magnet connection and the second current lead. The magnet further comprises a first current shunt (128) connected across the first switch and a second current shunt (130) connected across the second switch. The magnet further comprises a first rigid coil loop (124) operable to actuate the first switch. The first rigid coil loop forms a portion of the first electrical connection. The magnet further comprises a second rigid coil loop (126) operable to actuate the second switch. The second rigid coil loop forms a portion of the second electrical connection.

Magnet arrangements, sensor devices and corresponding methods are provided comprising a first magnet portion and a second magnet portion. The first magnet portion is spaced apart from the second magnet portion, and the second magnet portion comprises a bore. In a corresponding sensor device, a sensor element may be provided at a position between the first and second magnet portions.

An antenna device according to one of various examples of the present invention can comprise: an antenna module; a radio remote head (RRH) for receiving signals from the antenna module and a base station; guide modules for guiding the RRH such that the RRH slidably moves in an inclined state in the antenna module, for providing one end portion of the RRH to be rotated, and for providing the other end portion of the RRH to move vertically in the sliding movement direction; connection modules provided on a surface on which the antenna module and the RRH face each other, and electrically connecting the RRH and the antenna module; and coupling modules provided on one side of the RRH so as to move the connection modules, thereby mutually coupling or separating the connection modules.