An object is to provide a linear motor in which even when the overall length of the linear motor is long, the amount of magnets to be employed does not increase and hence size reduction and weight reduction of a stator is realized. A linear motor comprising a stator 2 and a movable element 1 provided with a coil 1a is characterized in that: the stator 2 includes two plate-shaped parts elongated in a moving direction of the movable element 1 and the two plate-shaped parts are provided facing each other so as to be magnetically linked in such a manner that a movement domain of the movable element 1 is located in between; in each of surfaces facing each other in the two plate-shaped parts, a plurality of tooth parts 21a and 22a are aligned in the moving direction such that the tooth parts 21a (22a) of one plate-shaped part and the tooth parts 22a (21a) of the other plate-shaped part are located in a staggered manner; in the movable element 1, inside the coil 1a, two magnets 1c, 1d and three yokes 1b are alternately arranged along the moving direction; and the two magnets 1c and 1d are magnetized along the moving direction and the magnetization directions are opposite to each other.

A temperature-control arrangement for a microelectric system, and a microelectric system. The temperature-control arrangement includes a closed channel system, which includes at least one channel for guiding an electrically and thermally conductive medium and is thermally coupled to at least one object to be temperature-controlled of the microelectric system, and a magnetohydrodynamic pump with a plurality of magnetohydrodynamic modules, which each include an electrode device with two electrodes and a magnet device, which generates a magnetic field, wherein at least two magnetohydrodynamic modules are designed as pump modules and are electrically connected in series.

Embodiments of the present invention relate to systems, methods, and apparatus for harvesting energy by transforming mechanical energy into electrical energy. Particularly, the energy can be harvested by converting mechanical energy produced during operations or movements of a body (e.g., a vehicle, a person, a machine, etc.) that generate alternating or periodic force, which can be received by the energy harvesting device.

A chip device for manipulating an object component is described, in which multiple liquid substances such as reagents required for a series of manipulations on a sample are stably secured in separated states throughout the manipulations within the device. The chip device includes a manipulation chip, magnetic particles, and a magnetic field application means. The manipulation chip includes a substrate, a groove formed in the surface of the substrate, and a manipulation medium accommodated in the groove such that gel phases and aqueous liquid phases are alternately disposed in the longitudinal direction of the groove and are in contact with each other. The magnetic particles are for capturing and carrying the object component. The magnetic field application means is capable of moving the magnetic particles in the longitudinal direction of the groove in the substrate by the application of a magnetic field to the substrate.

An electrospray diffusion pump with an upper vacuum chamber coupled to a lower vacuum chamber by a cylinder having an aperture in the upper chamber at the center of a conductive extractor ring. A conductive tube is positioned in the upper chamber and is axially aligned with the conductive extractor ring. The conductive tube is coupled to receive a conductive or semi-conductive spray fluid. A voltage source is coupled between the conductive tube and the extractor ring and adjusted to form a Taylor Cone that provides a jet of charged droplets at the tip of the conductive tube, the charged droplets are attracted to the extractor ring and pass into the aperture, then through the cylinder into the second chamber. The charged droplets have nearly zero vapor pressure and transfer ambient gas at a first pressure from the upper chamber to the lower chamber at a lower pressure.

An electrospray diffusion pump with an upper vacuum chamber coupled to a lower vacuum chamber by a cylinder having an aperture in the upper chamber at the center of a conductive extractor ring. A conductive tube is positioned in the upper chamber and is axially aligned with the conductive extractor ring. The conductive tube is coupled to receive a conductive or semi-conductive spray fluid. A voltage source is coupled between the conductive tube and the extractor ring and adjusted to form a Taylor Cone that provides a jet of charged droplets at the tip of the conductive tube, the charged droplets are attracted to the extractor ring and pass into the aperture, then through the cylinder into the second chamber. The charged droplets have nearly zero vapor pressure and transfer ambient gas at a first pressure from the upper chamber to the lower chamber at a lower pressure.

Provided is an orientation control device for a magnetic fluid, includes: a magnetic fluid having magnetic nanoparticles; an induction power generation unit configured to include a silicone tube through which the magnetic fluid passes and a solenoid coil which is wound around a predetermined section outside the silicone tube to generate induced power when the magnetic fluid passes through an inner side of the silicone tube; and a magnetic pole direction control unit configured to include a silicone tube at an entrance portion of the induction power generation unit and a solenoid coil wound around a predetermined section outside the silicone tube and generating a flux when a current flows therein so as to control pole orientation of the magnetic fluid.

Provided is an orientation control device for a magnetic fluid, includes: a magnetic fluid having magnetic nanoparticles; an induction power generation unit configured to include a silicone tube through which the magnetic fluid passes and a solenoid coil which is wound around a predetermined section outside the silicone tube to generate induced power when the magnetic fluid passes through an inner side of the silicone tube; and a magnetic pole direction control unit configured to include a silicone tube at an entrance portion of the induction power generation unit and a solenoid coil wound around a predetermined section outside the silicone tube and generating a flux when a current flows therein so as to control pole orientation of the magnetic fluid.

A heat engine that utilizes a controllable heat source that includes a body comprising a dopant that has an affinity for a fuel species, preferably a hydrogen isotope. The production of heat by the heat source can be modulated by the application of electric and/or magnetic fields to the body. The hear engine includes safety features that prevent excessive heat generation.

A heat engine that utilizes a controllable heat source that includes a body comprising a dopant that has an affinity for a fuel species, preferably a hydrogen isotope. The production of heat by the heat source can be modulated by the application of electric and/or magnetic fields to the body. The hear engine includes safety features that prevent excessive heat generation.