Abstract: A baby rocker includes a frame, a left rocker plate, a right rocker plate, a frame cover, and straps connected to the frame cover to hold the frame cover in position on the frame. The left rocker plate is attached to a left side of the frame and has a curved left rocker rail. The right rocker plate is attached to the right side of the frame and includes a curved right rocker rail. The frame cover includes a cushion positioned on a top side of the frame, a left side flap, a right side flap, a head end flap, and a foot end flap. The straps connect the left side flap, the right side flap, the head end flap, and the foot end flap at an underside of the frame to hold the frame cover in position.

Abstract: A strain compensated heterostructure comprising a substrate comprising silicon carbide material; a first epitaxial layer comprising single-crystal aluminum nitride material formed on a top surface of the substrate; a second epitaxial layer formed on the first epitaxial layer opposite the top surface of the substrate, the second epitaxial layer comprising single-crystal scandium aluminum nitride material; and a third epitaxial layer formed on the second epitaxial layer opposite the first epitaxial layer, the third layer comprising single-crystal aluminum nitride material.

Abstract: A baby rocker includes a frame, a left rocker plate, a right rocker plate, a frame cover, and straps connected to the frame cover to hold the frame cover in position on the frame. The left rocker plate is attached to a left side of the frame and has a curved left rocker rail. The right rocker plate is attached to the right side of the frame and includes a curved right rocker rail. The frame cover includes a cushion positioned on a top side of the frame, a left side flap, a right side flap, a head end flap, and a foot end flap. The straps connect the left side flap, the right side flap, the head end flap, and the foot end flap at an underside of the frame to hold the frame cover in position.

Abstract: A baby rocker includes a frame, a left rocker plate, a right rocker plate, a frame cover, and straps connected to the frame cover to hold the frame cover in position on the frame. The left rocker plate is attached to a left side of the frame and has a curved left rocker rail. The right rocker plate is attached to the right side of the frame and includes a curved right rocker rail. The frame cover includes a cushion positioned on a top side of the frame, a left side flap, a right side flap, a head end flap, and a foot end flap. The straps connect the left side flap, the right side flap, the head end flap, and the foot end flap at an underside of the frame to hold the frame cover in position.