A noise reduction system for attachment to a pillow having a top surface is disclosed, wherein a head of a user can be configured to be placed on the top surface of the pillow. The scan line and the data line forms a plurality of pixel regions. The plasma traps are electrically conductive disks surrounding the cylindrical structure and are positioned upstream from the processing chamber. When the storage bin is raised, a top of the storage bin is adapted to be positioned proximate the countertop. The compound type Kim-chi refrigerator according to the present invention comprise a heater 9 attached to the lower part of the condensed water vent formed on the vertical partition wall 6b defining the vegetable chamber 61 to remove the frost and heat the vegetable chamber 61 properly to the predetermined temperature range. The method comprises providing at least two copies of program status data; identifying a first update instruction of the instructions that writes to at least one field of the program status data; and associating the first update instruction with a first copy of the at least two copies of program status data.