A system reduces ammonia within a fluid flow. The excitation lights incident on the two sides of the wavelength conversion material may have the same color or different colors. A wrist rest extends from the top surface of the keyboard receiving member and is monolithically formed therewith in a unitary construction. The management server changes a CPU allocation budget related to the respective virtual servers and the hypervisor in accordance with the determined drive frequency. The retrieval of information is based on criterion that is customizable.