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Artificial Neural network is a nonlinear dynamic system, which can attain the reflection of nonlinear relations among variables within any precision, possessing the ability of solving nonlinear problems, therefore also meeting requirements of economic forecasting. Taking advantages of the nonlinear and dynamic characteristics, by adjusting weights, we can(More)
Driven by the urgent demand for the determination of low level perfluorooctanoic acid (PFOA) present in environment, a novel electrochemiluminescence (ECL) sensor has been first developed for the detection of PFOA using the molecularly imprinted polypyrrole modified two-dimensional ultrathin g-C3N4 (utg-C3N4) nanosheets as a cathodic ECL emitter with(More)
In the age of globalization, the upgrading of China’s manufacturing industries has attracted great attention from both academicians and practitioners, as it certainly has great implications for the development of China and, even further, for the development of the whole world. To address this issue, the study clarifies the effects of the internal(More)
the global value chain dominated by multinational corporations has become an important form of economic globalization. In global value chain, the relation between upstream enterprises and downstream enterprises is a key for us to understand economic globalization. In this paper a game model analyzing the relation of upstream and downstream enterprises is(More)
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