Provided are apparatuses and methods for introducing particles into a microdevice conduit. A wireless identification tag 1 mixed in a cement product in the manufacturing procedure thereof in which cement, an aggregate, water, or the like are mixed including a protection body 2 incorporating the wireless identification tag 1 having an antenna portion which can writeread information by radio communication, wherein a concave portion 3 is provided on the surface of the protection body. In operation, an excitation assembly causes reactions, particularly reaction forces, in the fluid within the at least one flow tube in a non-invasive manner, which are sensed and converted into measurement signals representative thereof by means of a sensor arrangement. If the status code indicates that the second station accepts the schedule information, the first station may transmit an MPDU whose power save bit is set to \u20181\u2019 to the second station and then enter the PSM.