The present invention relates to a highly stable, readily handleable preparation for use in animal feeds. An IQ-to-phase conversion unit converts an in-phase component value and a quadrature component value of each of a plurality of signals on respective subcarriers subjected to FFT into a phase component value. In another embodiment, an adhesion layer of titanium is provided in the opening prior to providing the ruthenium. A drain is in fluid communication with the drain subchamber. The fin set of one LED light source is located behind the evaporating section of the heat pipe of the other light source and closely adjacent to a wall of the housing. This process involves fast cyclic resistive heating of electrodes in an atmosphere of inert gas and hydrocarbons at below atmospheric pressure.