It is revealed that the optimal economic control system is different from two old systems in essence by research into the two key subjects of the new system.

并通过对最优经济控制系统的两个核心内容的考察，揭示了新交叉系统在本质上不同于原有的两个旧的系统。

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Significant research areas including Destination Management, Wildlife Tourism, Environmental Systems, Economic Models, Protected area Management.

重要研究范围包括目标管理，野生植物观光事业，环境系统，经济模型，保护区管理。

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The research on forecasting method of chaotic economic time series is the important part of the nonlinear chaotic economic dynamic systems.

混沌经济时间序列的预测方法研究是混沌经济非线性动力系统的重要内容。

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The UK's past investment in the Esa programme called Artes ( Advanced Research in Telecommunications Systems) has generated an economic return for the UK of more than six to one.

BBC: Space ticks the boxes for UK plc

This situation requires a new approach to research that is integrated, international, solutions-oriented and policy relevant, combining social, environmental and economic factors, across all domains of research as well as local knowledge systems.

UNESCO: keeps momentum going for sustainability driven science after Rio+20 | United Nations Educational, Scientific and Cultural Organization

Start-ups, venture investors and multinational conglomerates have invested millions of dollars and decades worth of research to bring these portable power systems to market, only to stumble into technical challenges, difficult economic circumstances and customer indifference.

FORBES: Why Are Portable Fuel Cells Such A Flop?