Performance Analyses and Improvements for IEEE 802.15.4 CSMA/CA Scheme in Wireless Multihop Sensor Networks Based on HTC Algorithm

Most of analyses for the IEEE 802.15.4 copyright Sense Multiple Access with Collision Cutouts Avoidance (CSMA/CA) scheme for multi-hop wireless sensor networks (WSNs) focus on how to avoid the impacts of hidden terminal problems rather than how to derive the exact multi-hop characters.In this paper, we propose a novel analysis model to analyze and

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Energy-Efficiency Improvement and Processing Performance Optimization of Forging Hydraulic Presses Based on an Energy-Saving Buffer System

This paper proposes an energy-saving system based on a prefill system and a buffer system to improve the energy efficiency and the processing performance of hydraulic presses.Saving energy by integrating such systems into the cooling system of a hydraulic press has not been previously reported.A prefill system, powered by the power unit of the cool

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