Abstract: An LED includes a substrate, a first n-type GaN layer, a connecting layer, a second n-type GaN layer, a light emitting layer, and a p-type GaN layer. The first n-type GaN layer, the connecting layer, and the second n-type GaN layer are formed on the substrate in sequence. The connecting layer is etchable by alkaline solution, and a bottom surface of the second n-type GaN layer facing towards the connecting layer has a roughed exposed portion. The GaN on the bottom surface of the second n-type GaN layer is N-face GaN. A top surface of the second n-type GaN layer facing away from the connecting layer includes a first area and a second area. The light emitting layer and the p-type GaN layer are formed on the first area of the top surface of the second n-type GaN layer in sequence.

Abstract: A non-contacting conveyance equipment comprises: a body having an end face that opposes an object to be conveyed, and a concave opening formed in the end face and surrounded by a cylindrical inner side wall; and a fluid passageway having a plurality of pairs of spouts to introduce fluid into an inner space of the concave opening in a circumferential direction of the cylindrical inner side wall so as to cause a swirl of fluid within the concave opening, each of the plurality of pairs of spouts being formed on the cylindrical inner side wall symmetrically to a central axis of the concave opening. A plurality of the non-contacting conveyance equipments may be provided on a base.

Abstract: This invention pertains to an apparatus for handling tarpaulins for load hauling vehicles. More particularly, this invention pertains to an apparatus which can roll up the tarpaulin used for load hauling tractor-trailer systems, the handler being of adjustable height and position relative to the load on the trailer. The handler is powered so as to assist in spreading the tarpaulin over the top of the load, and when the tarpaulin is not in use, winding the tarpaulin on the spool of the handler. An apparatus for storing and handling a tarpaulin for a vehicle hauling freight on its deck comprising: (a) a spool means for rolling up a tarpaulin; (b) means for supporting the spool means and enabling the position of the spool to be varied according to the position of the freight on the vehicle.