A storage device for coiled articles, such as electrical cords and hoses, includes a tubular plug adapted to be imbedded in a wall cavity. The values of parameters of the latter simulation model, which define the channel characteristic to be estimated, are determined as a result of the matching process. When the temperature of the catalyst is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst. A position indicator moves within the cache bar and tells the user visually where his current position is within the program material. The second frame are pre-coded using at least one second codeword selected from at least one second codebook. The top plate has a width at least approximately equal to the width of the bed and a front plate runs between the left side wall and the right side wall.