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World Heritage Sites (WHS) represent the most important natural and cultural heritage places in the world, which are also the most popular tourism destinations. This study focuses on the dynamic relationship between sustainable development and heritage tourism in the context of WHS, with special attention to the sustainable tourism development strategies and practices of the mixed WHS -Mt. Huangshan in the developing country, China. This study finds that there exists a conflict between WHS sustainable development and heritage tourism development. Seven themes related to sustainable tourism development practices and strategies of Mt. Huangshan were found based on the content analysis, which also reflect the sustainable development principles in terms of environmental sustainability, inclusive social development, and economic development. Future research agendas, for example, the value-based management approach and stakeholders coordination are also proposed. This study contributes to the existing knowledge in both theory and practice of sustainable tourism development of WHS, especially in developing country.

In this paper, a stable adaptive fuzzy immune sliding mode controller(AFISMC) for a class of nonlinear uncertain systems is investigated. The fuzzy system is applied to approximate the unknown nonlinear function of plant, and then the estimation value of nonlinear function is used to design the control variable, the immune feedback system is used as a compensator for the fuzzy sliding control. The proposed approach does not need a bound to be known, only requiring that it exists, and has not any assumption for initial condition. The approach is applied to an inverted pendulum system via significant disturbances. Analysis of simulations reveals that proposed method is robust in the presence of uncertainties and bounded external disturbances.