This paper proposes multi-filtering method to prevent DDoS attack. Several filtering methods are applied in two firewall architecture for effective DDoS prevention. In the first firewall, R-PA filtering algorithm and strict hop counter filtering method are applied by analyzing packet paths. In the second firewall, packets are examined to distinguish abnormal packets from normal packets. Security policy system monitors each user sessions and if the traffic is over the threshold value, the system blocks the session for an assigned time.
In recent years, scientific studies of traditional oriental medicine are accelrating. Furthermore, researches of medical examinations and treatments through collaboration of oriental medicine and western medicine is in progress. This paper will seek for spots on the body suitable for acupuncture using special features that skin impedance values are different. The computer simulation results have shown that Electro-Acupuncture administered by using the medical diagnosis system developed in this study is more effective than the conventional method.
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