Abstract: A tooth-wound coil of a stator or of a stator segment of a dynamo-electric machine having two straight sections spaced apart from each other and running substantially parallel. Two 180° curves are located on the ends thereof, wherein the straight sections have an active part area, the axial extend of which is less than or equal to that of the straight section. The tooth-wound coil has a symmetrical extension plane running in the longitudinal direction. An insulation material is provided around the straight sections of the tooth-wound coil. The material effects groove isolation and/or phase isolation in the stator or stator segment.

Abstract: A device for supporting a wheelchair includes a frame and a support system. The first end of the frame is attached to an axle of the wheelchair. The second end of the frame is attached to a wheel for allowing translation of the device over a surface. The support system is coupled to the frame and may be positioned to catch a back of the wheelchair upon reclining of the wheelchair during a wheelie. The position of the support system with respect to the frame is adjustable in order to catch the wheelchair at varying angles of reclining. As the user of a wheelchair develops skill in performing a wheelie, the position of the support system may be moved further away from the wheelchair.

Abstract: A device for supporting a wheelchair includes a frame and a support system. The first end of the frame is attached to an axle of the wheelchair. The second end of the frame is attached to a wheel for allowing translation of the device over a surface. The support system is coupled to the frame and may be positioned to catch a back of the wheelchair upon reclining of the wheelchair during a wheelie. The position of the support system with respect to the frame is adjustable in order to catch the wheelchair at varying angles of reclining. As the user of a wheelchair develops skill in performing a wheelie, the position of the support system may be moved further away from the wheelchair.

Abstract: A device for supporting a wheelchair includes a frame and a support system. The first end of the frame is attached to an axle of the wheelchair. The second end of the frame is attached to a wheel for allowing translation of the device over a surface. The support system is coupled to the frame and may be positioned to catch a back of the wheelchair upon reclining of the wheelchair during a wheelie. The position of the support system with respect to the frame is adjustable in order to catch the wheelchair at varying angles of reclining. As the user of a wheelchair develops skill in performing a wheelie, the position of the support system may be moved further away from the wheelchair.

Abstract: A method of forming an edge-doped graphene channel is described. The method involves selectively removing graphene from a graphene layer on a substrate in the presence of a dopant to form graphene channels. The dopant forms bonds with carbon atoms on the edge of the graphene such that the graphene channels are edge doped. An article of manufacture is also provided which includes a substrate layer, one or more edge-doped graphene channels on the substrate layer and a layer of an etch mask material on and coextensive with the one or more graphene channels. An article of manufacture is also provided which includes a substrate layer and one or more edge-doped graphene channels on the substrate layer, wherein each of the one or more the graphene channels has a width less than 100 nm and a carrier density greater than 5×1012 cm?3.

Abstract: A method of forming an edge-doped graphene channel is described. The method involves selectively removing graphene from a graphene layer on a substrate in the presence of a dopant to form graphene channels. The dopant forms bonds with carbon atoms on the edge of the graphene such that the graphene channels are edge doped. An article of manufacture is also provided which includes a substrate layer, one or more edge-doped graphene channels on the substrate layer and a layer of an etch mask material on and coextensive with the one or more graphene channels. An article of manufacture is also provided which includes a substrate layer and one or more edge-doped graphene channels on the substrate layer, wherein each of the one or more the graphene channels has a width less than 100 nm and a carrier density greater than 5×1012 cm?3.