Energy saving and innovation are currently the subjects of much research. In this study we use the Cobb–Douglas (C–D) type production function to estimate the impact of energy saving technologies and innovation investments on the productive efficiency of Chinese iron and steel enterprises...

Purpose The purpose of this paper is to introduce the modeling and implementation of a novel multimode amphibious robot, which is used for patrol and beach garbage cleaning in the land–water transition zone. Design/methodology/approach Starting from the design idea of multimode motion, the...