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Item Metadata only A hybrid network transport protocol for multimedia traffic(Mahidol University. Mahidol University Library and Knowledge Center, 2014) Teeraphol Sukprapaipat; Noppadol Wanichworanant; Suratose Tritilanunt; Konglit Hunchangsithtraffic when using these applications. This research presents a hybrid network transport protocol for real-time applications and multimedia traffic. The name of the hybrid protocol is the New User Datagram Protocol or NUDP. This protocol is based on UDP...In today's modern world, the use of multimedia is important for communication in business and daily life. Many people use real-time applications such as Voice over Internet Protocol (VoIP) for communication, so they need high-quality multimediaItem Metadata only Backward authenticated multi-party key agreement protocols(Mahidol University. Mahidol University Library and Knowledge Center, 2000) Noppanun Suksomboon; Damras Wongsawang; Sukanya Phongsuphapauthentication, key confirmation and key integrity. All these provide a number of different scenarios of group membership changes that enable addition and exclusion of group members. This thesis proposed a new protocol, called "Backward authenticated multi-party..., communication among group members must be secured while maintaining the availability and efficiency of the system.The general secured protocol in context type of dynamic peer groups should be concentrated on secured and efficient group key agreement, secured keyItem Metadata only Synthesis of manganese complexes of curcumin derivatives as superoxide dismutase mimics(Mahidol University. Mahidol University Library and Knowledge Center, 2005) Athittaya Euaareepichit; Opa Vajragupta; Leena Suntornsukscavenging ability of the new ligands. The ligands were complexed with manganese to obtain the proposed complexes, Mn-cpx 1-3. The new manganese complexes were investigated for their radical scavenging properties i.e. the in vitro effects on superoxide anion... antioxidants and trolox (the reference antioxidant) in all investigated protocols. Hence, the increase of nitrogen atoms in form of pyrazole ring in the central bridge of the curcumin backbone and consequently increase in the lipophility and binding capabilityItem Metadata only The systematic and random errors determination using real-time 3D surface tracking system in breast cancer(Mahidol University. Mahidol University Library and Knowledge Center, 2016) Jaruek Kanphet; Nuanpen Damrongkijudom; Taweap SanghangthumIn advanced radiotherapy, the modern technologies and new techniques are used to improve the potential of cancer treatment. The IGRT was applied to verify tumor's position before treatment. The use of IGRT is possible to reduce dose and side effects... reference image in vertical, longitudinal and lateral directions were record. Then the systematic and random errors were calculated. The characteristics of the AlignRT system with new version of 3 camera pods showed no effect to the infrared light in some