An apparatus that calculates a mobile terminal position includes storage, an updater to receive global positioning system satellite signals, and a position calculation unit. It may be determined whether the block of pixels contains an edge pixel. The leg covering or body covering can be of a material that is protective against biological attacks, chemical attacks, nuclear radiation and snake bites. 0, while the second treatment solution has a pH of from 3. If the first item of data matches at least one of the second item of data and the third item of data, the first item of data is valid. An assembly is provided for coupling a pool cover to a connector mechanism attached to a pool, comprising a pool cover comprising at least one pool cover edge, and a webbing coupled to at least a portion of the pool cover edge by a heat seal between a portion of the webbing and a portion of the pool cover edge.