  We introduce a boundary state which is corresponding to a D$p$-brane with
tangential dynamics in the presence of the Kalb-Ramond field, a tachyonic field
and a $U(1)$ gauge potential in a special gauge. From the interaction of such
branes radiation amplitude of a general massless closed string will be
computed. The effects of the large distances of the branes on this radiation
will be studied. In the large distances of the branes, the possibility of axion
radiation will be investigated. Our calculations will be in the context of the
bosonic string theory.
