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Task/ambient air conditioning (TAC) system is reported to be an energy efficient technology with available methods to control thermal comfortable level for sleeping environments. Better performance in energy saving for TAC systems in sleeping environment has been demonstrated in previous studies. However, it should be noticed that the building envelope thermal load affects the indoor thermal environment...
There has been an increasing concern on thermal comfort in sleeping environments and its associated energy use in the past few years. To improve the thermal environment and to reduce energy use of air conditioning in bedrooms, applications of task/ambient air conditioning (TAC) systems were proposed and studied previously. It’s indicated that the TAC system can be well integrated with a bed. Due to...
Wood plastic composites (WPC) have become the state-of-the-art commercial products with a growing market potential in the area of building, construction, and automotives in the past ten years. Increasing attention has been given to polylactide (PLA)-based WPC in recent years, due to the renewable raw materials, good mechanical and processing properties. However, the environmental impacts of the wood...
Energy efficient is a critical issue in the research and applications of wireless sensor networks(WSN). The topology control scheme has been adopted as an useful measure to guaranty network connectivity and longer lifetime. In this paper, we proposed a topology maintenance algorithm to realize topology reconstruction when a cluster head being dead or a new cluster head elected. The algorithm design...
Ball mill load measurement is essential to control and operational optimization for the wet grinding process, which affects the production efficiency and energy consumption. A frequency spectral information fusion soft sensor model is proposed to estimation the mill load in the paper. PCA is used to extract the feature of frequency spectrum to deal with many, noise and collinear variables. FFT is...
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