A charging stand for selectively enclosing and exposing an appliance such as a hair trimmer having a rechargeable battery includes a base and a cover. The present invention furthermore relates to vectors and host cells which contain the nucleic acid molecules according to the invention, the plant cells and plants which originate from the methods according to the invention, to the starch synthesized by the plant cells and plants according to the invention, and to processes for the preparation of this starch. In an embodiment, each L-car may be configured for support at its forward end on a preceding L-car, and at a rear base on a set of flanged rail wheels. The control algorithm responds to the vehicle’s operating parameters such as vehicle speed, tracking error, predicted heading, and hydraulic oil temperature to make adjustments to the auto guidance control parameters. Furthermore, the isogenies may be used in other applications such as blind signatures, hierarchical systems, and the like.