10,223 research outputs found

    Wind energy development and dissemination in China: Prospects and constraints in an institutional context

    Get PDF
    This study is intended to provide a better understanding of the functional roles and dynamics of institutions in determining the effectiveness of national and regional public-sector initiatives to promote the dissemination of wind turbine technologies in China. The structures, roles, and relationships of relevant institutions involved in wind energy development are analyzed. It examines wind energy development in the last four decades and divides them into four different stages of development. The objective of the study is to identify the steering mechanisms in wind-energy technology dissemination, and the obstacles involved. It is argued that institutional problems constitute major barriers for cost-effective development of wind turbines in China. These include investment loans, tax systems, electricity prices, technology transfer and adaptation, and human resources development. Two empirical studies about the Inner Mongolia region and the Dachen Island in Zhejiang Province are presented as illustrative cases. It concludes that establishing stable frameworks for private sector participation in the wind-energy market holds the key for effective dissemination of wind turbine technologies in China

    Is Cognitive Linguistics deadly sinful? On the pros and cons of Cognitive Linguistics and its development

    Get PDF
    Cognitive Linguistics started from the 1980s, and it has become a mainstream since the end of the last century and the beginning of this century, which has got widespread attention, with a nickname as the third revolution in linguistic circles after the Saussurean Revolution and the Chomskyean Revolution. According to the dialectical principle of “negation of negation”, theoretical research is always advancing, thus the linguists are beginning to think of the shortcomings of Cognitive Linguistics and new developments in the future. For instance, Dabrowska (2016) pointed out the seven deadly sins of Cognitive Linguistics, which, we think, are overstated and too radical. Cognitive Linguistics has its own historical significance and makes great contributions to the criticism of Saussurean “Linguistic Apriorism” and Chomskyean “Linguistic Nativism”, but Cognitive Linguistics also has its own weaknesses, which are to be exposed in brief in this paper. We have also tried to propose “Embodied-Cognitive Linguistics as a revision in order to emphasize the philosophical views of “materialism” and “humanism” as a basic start in linguistic research

    Coexistence and asymptotic periodicity in a competitor–competitor–mutualist model

    Get PDF
    AbstractIn this paper, the competitor–competitor–mutualist three-species Lotka–Volterra model is discussed. Firstly, by Schauder fixed point theory, the coexistence state of the strongly coupled system is given. Applying the method of upper and lower solutions and its associated monotone iterations, the true solutions are constructed. Our results show that this system possesses at least one coexistence state if cross-diffusions and cross-reactions are weak. Secondly, the existence and asymptotic behavior of T-periodic solutions for the periodic reaction–diffusion system under homogeneous Dirichlet boundary conditions are investigated. Sufficient conditions which guarantee the existence of T-periodic solution are also obtained
    • …
    corecore