Some embodiments are directed to a generator and separator assembly for generating ions via atmospheric pressure, low temperature plasma and separating the generated ions. The generator and separator assembly include a plasma generator for generating the generating atmospheric pressure, low temperature plasma that is configured to eject positively and negatively ions. A separator is disposed to receive the positively and negatively ions ejected from the plasma generator, and includes a first separator electrode; a second separator electrode spaced from the first separator electrode; and a separator power supply that supplies electric power in the form of at least one of different voltages and different polarities to the first and second electrodes ranging from 0 kV and 10 kV, such that the received positively charged ions are redirected in one direction and the received negatively charged ions are redirected to another direction different from the one direction.

A system for generating and delivering a low temperature, wide, partially ionized tunable plasma stream is described. The system employs a fast rising, repetitive high voltage pulse generator, flowing gas, and a plasma head to produce the described atmospheric pressure plasma stream and its associated active species. The plasma head may have an exit slit with a relatively wide dimension to produce a relative wide plasma stream. Electrodes may be located proximate the exit slit, for example one in an interior of the plasma head via with gas flows toward the exit slit, and the other exterior to the plasma head and offset from the exit slit. The plasma may include baffle material to enhance a uniformity of flow through and across the exit slit. Plasma heads with having exit slit with different widths may be provided as a kit.

Provided is a plasma device for applying a cold atmospheric plasma to a surface to be treated, in particular on textiles, leather and/or plastic fibers. The plasma device includes a housing, a plasma source in the housing, and a voltage source in the housing for applying a voltage to the plasma source, wherein the plasma device is configured to enable activation of the plasma source and/Oor to selectively switch the plasma source on only if a distance between the plasma source and the surface to be treated is within a predetermined distance.

Plasma applications are disclosed that operate with argon or helium at atmospheric pressure, and at low temperatures, and with high concentrations of reactive species in the effluent stream. Laminar gas flow is developed prior to forming the plasma and at least one of the electrodes can be heated which enables operation at conditions where the argon or helium plasma would otherwise be unstable and either extinguish, or transition into an arc. The techniques can be employed to clean and activate a metal substrate, including removal of oxidation, thereby enhancing the bonding of at least one other material to the metal.

A wind turbine control device acquires operation history data at the time of plasma generation indicating an operation history of a first wind turbine when a plasma has been generated by plasma electrodes installed on a blade and operation history data at the time of stopping plasma generation indicating an operation history of the first wind turbine when no plasma has been generated by the plasma electrodes, executes an operation history comparison process of comparing the operation history data at the time of plasma generation with the operation history data at the time of stopping plasma generation, executes an operation history determination process of determining whether or not a result of the operation history comparison process satisfies a prescribed first condition, and controls at least one of the plasma electrodes and at least one of the first wind turbine and a second wind turbine different from the first wind turbine on the basis of a result of the operation history determination process.

An airflow generation device having a first dielectric substrate made from a rubber elastic material, a first electrode on or near by a first surface of the first dielectric substrate, a second electrode on a second surface, and a second dielectric substrate made from a rubber elastic material covering the second electrode. It makes the airflows generated by plasma caused from partial gas near by the first surface through applied voltage into the first electrode and the second electrode, and bonding portions between the first electrode and the second electrode and the first dielectric substrate, bonding portions between the second electrode and the second dielectric substrate, and bonding portions between the first dielectric substrate and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking.

A plasma source (100), comprises an outer face (10) with an aperture (14) for delivering a plasma from the aperture. A transport mechanism is configured to transport a substrate (11) and the plasma source relative to each other parallel to the outer face, with a substrate surface to be processed in parallel with at least a part of the outer face that contains the aperture. First (4-1) and second tile (4-2) are arranged within a first plane of a working electrode (22) with neighbouring edges (12) bordering a first plasma collection space (6-1) and a third tile (4-3) is arranged in a second plane of the working electrode parallel to the first plane such that the third tile overlaps neighbouring edges in the first plane. At least one of the working and counter electrodes comprises a local modification (13,15) near said neighbouring edges to increase a plasma delivery to the aperture compensating for loss of plasma collection due to the neighbouring edges.

An airflow adjusting apparatus includes a downward airflow generator, a rearward airflow generator, and a controller. The downward airflow generator is configured to generate an airflow, and is disposed at a front edge of a movable body to generate the airflow traveling in downward direction. The rearward airflow generator is configured to generate an airflow, and is disposed at a lower surface of the movable body to generate the airflow traveling in a rearward direction. The controller is configured to perform switching between a lifting-force increase control and a lifting-force suppression control in accordance with a state of the movable body to execute one of the controls. The lifting-force increase control is a control of activating the downward airflow generator and deactivating the rearward airflow generator. The lifting-force suppression control is a control of deactivating the downward airflow generator and activating the rearward airflow generator.

A plasma generator includes an AC power supply, a power supply electrode and a ground electrode, one of which is disposed in a gas flow path and the other of which is a conductive wall constituting the gas flow path, an inflexible connection member configured to electrically connect the AC power supply and the power supply electrode, and an insulating material (power supply side insulating material, ground side insulating material) covering a side of one of the power supply electrode and the ground electrode, the side facing the other electrode.

An active oxygen supply device that is a plasma actuator equipped with a plasma generator and an ultraviolet light source in a housing having at least one opening, the plasma generator being provided with a first electrode and a second electrode with a dielectric in-between and creating an induced flow that contains ozone by applying a voltage between the two electrodes, in which the plasma actuator is positioned so that the induced flow flows outside the housing from an opening, and the ultraviolet light source irradiates the induced flow with ultraviolet rays and generates active oxygen in the induced flow; a device for conducting treatment by active oxygen; and a method for conducting treatment by active oxygen.