Aspects of the invention relate to cell culture vessels and method for using the vessels to agitate and maintain cells in suspension. In some embodiments, the vessel has a body configured to hold a volume of liquid containing cells to be cultured, the vessel body having a deformable portion arranged to induce movement of the liquid sufficient to maintain the cells in suspension. In some embodiments, the deformable portion is in at least one of a base and sidewall of the vessel body. In some embodiments, the deformable portion is deformed according to a deformable pattern. In some embodiments, the deformable portion is deformed via a deformation plate having one or more movable members that contact the deformable portion.

An electromagnetic damper is attached to a vehicle and causes oscillation damping force using a motor driven with energy from a power source. The electromagnetic damper includes an electrical circuit that causes a coil of the motor to be short-circuited in a state where the energy from the power source to the motor is interrupted.

The present application provides a power generator, a suspension, a vehicle, an apparatus and a method for producing a power generator. Among them, the power generator comprises a cylinder body, a moving member, and a piezoelectric conversion unit. The moving member and the cylinder body jointly defines a variable cavity. The piezoelectric conversion unit is located in the variable cavity, and the piezoelectric conversion unit is configured to deform when the moving member is in relative motion with respect to the cylinder body move and changes the size of the variable cavity, for generating electric energy. Due to the fact that the piezoelectric conversion unit is arranged in the variable cavity, the moving member is in relative motion with respect to the cylinder body to make the piezoelectric conversion unit generate electric energy, thus effectively utilizing the energy generated by the target members in the vibration process.

The present application provides a power generator, a suspension, a vehicle, an apparatus and a method for producing a power generator. Among them, the power generator comprises a cylinder body, a moving member, and a piezoelectric conversion unit. The moving member and the cylinder body jointly defines a variable cavity. The piezoelectric conversion unit is located in the variable cavity, and the piezoelectric conversion unit is configured to deform when the moving member is in relative motion with respect to the cylinder body move and changes the size of the variable cavity, for generating electric energy. Due to the fact that the piezoelectric conversion unit is arranged in the variable cavity, the moving member is in relative motion with respect to the cylinder body to make the piezoelectric conversion unit generate electric energy, thus effectively utilizing the energy generated by the target members in the vibration process.

A second electric suspension device includes a second electromagnetic actuator that is provided between the vehicle body and a wheel of a vehicle and generates a driving force for damping vibration of the vehicle. The second electromagnetic actuator includes a columnar rod member and a casing surrounding the rod member and being provided capable of moving forward and backward relative to the rod member in the axial direction. Casing-side armature coils are provided in the casing in the axial direction, whereas magnets are provided in the rod member in the axial direction in such a manner as to face part of the casing-side armature coils in the casing. The magnets are formed by permanent magnets and electromagnets including rod-side armature coils.

Aspects of the invention relate to cell culture vessels and method for using the vessels to agitate and maintain cells in suspension. In some embodiments, the vessel has a body configured to hold a volume of liquid containing cells to be cultured, the vessel body having a deformable portion arranged to induce movement of the liquid sufficient to maintain the cells in suspension. In some embodiments, the deformable portion is in at least one of a base and sidewall of the vessel body. In some embodiments, the deformable portion is deformed according to a deformable pattern. In some embodiments, the deformable portion is deformed via a deformation plate having one or more moveable members that contact the deformable portion.

An electrically powered suspension system performs an accurate vibration damping of a vehicle with low power consumption even if a linear motor of an electromagnetic actuator strokes to reach an irregular region and includes an electromagnetic actuator generating a driving force for the vibration damping. A linear motor of the actuator includes a cylindrical rod member provided with a plurality of on-rod armature coils along its axis and a housing surrounding the rod member , mounted movable back and forth along the axis with respect to the rod member , and provided with a plurality of permanent magnets along the axis. The on-rod armature coils located on ends of the rod member are provided with short-circuit parts b suppressing the rod member and the housing from moving back and forth with respect to each other.

A second electric suspension device includes a second electromagnetic actuator that is provided between the vehicle body and a wheel of a vehicle and generates a driving force for damping vibration of the vehicle. The second electromagnetic actuator includes a columnar rod member and a casing surrounding the rod member and being provided capable of moving forward and backward relative to the rod member in the axial direction. Casing-side armature coils are provided in the casing in the axial direction, whereas magnets are provided in the rod member in the axial direction in such a manner as to face part of the casing-side armature coils in the casing. The magnets are formed by permanent magnets and electromagnets including rod-side armature coils.

An electrically powered suspension system performs an accurate vibration damping of a vehicle with low power consumption even if a linear motor of an electromagnetic actuator strokes to reach an irregular region and includes an electromagnetic actuator generating a driving force for the vibration damping. A linear motor of the actuator includes a cylindrical rod member provided with a plurality of on-rod armature coils along its axis and a housing surrounding the rod member, mounted movable back and forth along the axis with respect to the rod member, and provided with a plurality of permanent magnets along the axis. The on-rod armature coils located on ends of the rod member are provided with short-circuit parts b suppressing the rod member and the housing from moving back and forth with respect to each other.

An electroactive elastomer converter is described comprising at least one electroactive elastomer layer (3) with a top side and underside and an electrically conductive electrode body (1) that is two-dimensionally connected to the top side at least in regions. An electrically conductive electrode body (1) is dimensionally connected in at least two regions to the underside. At least one electrode body (1) in each case has an electrode surface facing the elastomer layer (3). At least one opening (2) is present to which an a two-dimensional region in which there is no two-dimensional bond between the elastomer layer (3) and the electrode body (1). A compressible medium is provided in the area of the opening.