The development of new energy sources is imminent for solving the crucial problems in resources and environment fields. Due to national resource endowment, the consumption of energy in developing countries is inevitably increasing. This paper predicts new energy electricity generation for...

The research and development of citrus fruit harvesting robots to realize the automation and intelligence of harvesting are of great significance for reducing the labor cost and labor risk of harvesting. In this paper, the citrus fruit harvesting robot with running module, vision module,...

Using data from 1986-2005, the present paper estimates the impact of direct knowledge spilled over from G-7 countries on China's economy. We use telephone line penetration rates and personnel flows to estimate the direct spillover effect. Our results show that direct knowledge spillovers through...