Abstract: Embodiments of the present invention recite a computer implemented method and system for creating a road model. In one embodiment, an identification of an intersection of a first road and a second road is received. At least one designated elevation is received at which the first road and the second road should merge. Finally a united layer is automatically created for the intersection wherein a first plurality of strings defining the first road and a second plurality of strings defining the second road intersect at the at least one designated elevation.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: (a) a first cylindrical structure having a cylindrical interior chamber for receiving a golf club shaft, a first rotation-inhibiting structure, and a securing structure; (b) a second cylindrical structure having a borehole for receiving the first cylindrical structure, and a second rotation-inhibiting structure that engages the first rotation-inhibiting structure and (c) a securing system for releasably engaging the securing structure. The shaft may extend at an angle from the shaft connection assembly so as to allow adjustment of the shaft position with respect to the club head by rotating the first cylindrical structure or exchanging the second cylindrical structure.

Abstract: The Book Hammock is a fabric shelf installed onto student chairs using a nylon cord that allows for the storage of books and supplies under the seat of the chair. The Book Hammock's angled design with fashioned sides and a back help to prevent the supplies from falling off the shelf. The use of flexible materials and nylon cord allow the user to stack and unstuck chairs for storage and mobility without having to remove the Book Hammocks.

Abstract: A low voltage power supply is disclosed. The power supply comprises a transformer having a primary winding, secondary and auxiliary windings wherein an interrupted current in said primary winding induces a voltage in each of the secondary and auxiliary windings, a first driver circuit and a second driver circuit connected in parallel to said primary winding, a first controller receiving said voltage from said auxiliary winding and connected to said first driver circuit and a second controller connected to said second driver circuit, providing a control signal to said second driver circuit when said auxiliary is below a predetermined value.