An MRI system has compensating material located at a radial position between the imaging region and the basic field magnet in a location that will be heated over a range of temperatures during operation of the MRI system. An annular void may be defined by and located between the first and second tubes for insulating a fluid flowing through the first tube. The first chamber is an annular inner chamber for receiving the disc media and includes a cylindrical inner structure defining central support for the disc media by means of the annular opening at the center thereof, such that the disc media is allowed to rotate, while limiting the linear movement of the disc media both perpendicular to and parallel to the plane of the media. The method also includes disabling the network module from executing the AP search operation as long as the electronic device is still in the specific state. The invention may be applied to as different substances as diary products, fruit, berries, seeds, meat, vegetable and animal fat, animal feed, water, wine, beer, lemonades, oils, rubber and plastic materials, gypsum and plaster, cement and concrete mixes, paints, glues etc.