Multimedia teaching managemem system based on SIP ＆ P2P is proposed on account of the existing deficiency on video teaching of distance education. The designed P2P-SIP system applies SIP protocol to realize the under...Multimedia teaching managemem system based on SIP ＆ P2P is proposed on account of the existing deficiency on video teaching of distance education. The designed P2P-SIP system applies SIP protocol to realize the underlying DHT, which guarantees zero-configuration, robustness and adaptability in P2P system. And maximum improvement in performance of the networks for multimedia system can be implemented by rapid networking and information sharing technology of the underlying P2P networks as well as fast call and location technology of SIP system. Experiments indicates that multimedia teaching management system based on SIP ＆ P2P could meet the requirement of system design on data latency and calling location.展开更多
Participatory and integrated research approaches employed by a long-term Thai- Vietnamese-German collaborative research program, ‘The Uplands Program’, that address the vicious circles of resource scarcity, environm...Participatory and integrated research approaches employed by a long-term Thai- Vietnamese-German collaborative research program, ‘The Uplands Program’, that address the vicious circles of resource scarcity, environmental degrada- tion and rural poverty in mountainous regions of northern Thailand and northern Vietnam are discussed in this paper. We present two examples from the Thai component of the research program to show how different disciplines and stakeholders need to cooperate at different scales to make meaningful scientific contributions towards sustainable land use and rural development in mountainous regions. The case of resource conservation in the Thai highlands shows that local and scientific knowledge, conven- tional surveys and participatory modeling can be creatively combined. Integrated research on the potential of integrating fruit trees and associated technologies into mountain farming systems suggests that natural scientists have to work alongsideeconomists and social scientists to avoid harmful effects of purely technology-driven and productivity- enhancing approaches. The success of new technologies cannot be measured solely by adoption rates and yield increases, but also needs to take into account their long-term impact on various groups of farmers and the ecological, economic and social trade-offs that they entail. Technical and institutional innovations need to go hand in hand to provide viable livelihood opportunities for smallholder farmers in mountain watersheds. The major lesson learned from the first six years of our research in the mountains of Thailand and Vietnam is that conventional and participatory approaches are not antagonistic; if scientists from various disciplines and research paradigms are open-minded, the combination of both approaches can produce meaningful results that cater for the needs of both the academic community and local stakeholders in mountain environments.展开更多
文摘Multimedia teaching managemem system based on SIP ＆ P2P is proposed on account of the existing deficiency on video teaching of distance education. The designed P2P-SIP system applies SIP protocol to realize the underlying DHT, which guarantees zero-configuration, robustness and adaptability in P2P system. And maximum improvement in performance of the networks for multimedia system can be implemented by rapid networking and information sharing technology of the underlying P2P networks as well as fast call and location technology of SIP system. Experiments indicates that multimedia teaching management system based on SIP ＆ P2P could meet the requirement of system design on data latency and calling location.
文摘Participatory and integrated research approaches employed by a long-term Thai- Vietnamese-German collaborative research program, ‘The Uplands Program’, that address the vicious circles of resource scarcity, environmental degrada- tion and rural poverty in mountainous regions of northern Thailand and northern Vietnam are discussed in this paper. We present two examples from the Thai component of the research program to show how different disciplines and stakeholders need to cooperate at different scales to make meaningful scientific contributions towards sustainable land use and rural development in mountainous regions. The case of resource conservation in the Thai highlands shows that local and scientific knowledge, conven- tional surveys and participatory modeling can be creatively combined. Integrated research on the potential of integrating fruit trees and associated technologies into mountain farming systems suggests that natural scientists have to work alongsideeconomists and social scientists to avoid harmful effects of purely technology-driven and productivity- enhancing approaches. The success of new technologies cannot be measured solely by adoption rates and yield increases, but also needs to take into account their long-term impact on various groups of farmers and the ecological, economic and social trade-offs that they entail. Technical and institutional innovations need to go hand in hand to provide viable livelihood opportunities for smallholder farmers in mountain watersheds. The major lesson learned from the first six years of our research in the mountains of Thailand and Vietnam is that conventional and participatory approaches are not antagonistic; if scientists from various disciplines and research paradigms are open-minded, the combination of both approaches can produce meaningful results that cater for the needs of both the academic community and local stakeholders in mountain environments.
