A method of grading comminuted charging material in a wind sifter having a sifting rotor. In one embodiment, the modules are selected from a group of modules adapted to be used in combination to perform one or more medical functions for a particular patient. More particularly, the present invention relates to the treatment of neurological disorders related to \u03b2-amyloid production such as Alzheimer’s disease and Down’s Syndrome. After receiving the user information provided by the user via the user interface, the service provided by the network server is allowed access to the received user information, and the central server updates the user profile. An environment optimization control program, which calculates the temperature distribution and airflow in an electronic device facility when the operation of the air-conditioners is controlled on the basis of the input power information for the electronic devices and the required amount of cooling, is installed in the integrated management server.