Yi-xing Yuan

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The strategy of sustainable development is paid more attention by the people in the world. It is urgently to solve such problems by an appropriate method. This article applies ecological footprint to account and analyze the sustainable development of China’s Heilongjiang province from 1995 to 2006. The following results were obtained. The arable land(More)
The characteristics of the chaos theory are analyzed in this paper. The urban daily water demand short-term forecasts model, which is for the scientific forecast of the urban daily water demand, is built based on the chaos theory. The time-series of urban daily water demand is analyzed on the basis of phase space reconstruction and the historical data of(More)
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