Hong-Qi Xu

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Aiming at the shortage of existing DDoS attacks defense system, this paper puts forward an effective approach against DDoS attacks based on the three-way handshake process, and the key point lies in discarding the aggressive first handshake requests which consume a lot of system resources; thus it ensures that the new normal network request can be dealt(More)
Decay kinetic properties of a two-level atom near the band edges of photonic crystals (PCs) with absolute gaps are studied based on the Green's function expression for the evolution operator. The local coupling strength between the photons and an atom is evaluated by an exact numerical method. It is found that the decay behavior of an excited atom can be(More)
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