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Arc welding is a common joining method, which is usually characterized by high energy consumption and low energy efficiency. With the recent focus on energy management and carbon emissions, energy saving has become a priority for manufacturing industry. In the past, energy saving technologies for welding had primarily aim for heat source improvement, with less emphasis on parameter optimization. It...
The Radio Resource Control (RRC) state machine has been widely studied to improve application performance and reduce the energy consumption of smart phones. We observe that even a smart phone remains in the RRC state, there may still exist some significant performance change if it simultaneously carry on voice and data services. For example, the Round Trip Time (RTT) will get larger when a voice call...
Warehouse data center is very large scale and complex, which constains tens of thousands servers and accomodates various applications. What's more important, energy consumption has risen to a critical point. Scheduling needs to maintain performance and reduce energy consumption as much as possible. Previous researches have proposed RL (reinforcement learning) as a solution. These approaches have reduced...
In Wireless Sensor Networks (WSNs), stochastic reliable transmission protocols, which improve reliability of the delivery process by transmitting redundant packets, have been proved to have advantage of energy efficiency over the retransmission one. But the burst and deep fading characteristic of the error prone wireless links in WSNs reduces the practicability of this kind of protocols. To solve...
Energy minimization for multi-core embedded systems is one of the most important issues, as well as performance. When the transition time of supply voltage is a constant, appropriate execution order of tasks can decrease the number of voltage transition and save the energy overhead of voltage transition. This paper proposes a scheduling algorithm for multi-core embedded systems running periodic dependent...
A rolling-horizon approach was proposed, which aims at the problem of berth allocation and quay crane assignment. Then a dynamic allocation model using objective programming was initially developed for berths allocation and quay crane assignment, which more closes realistic as result of basing continuum quayside. The model objective function was subject to the minimization of the total berthing location...
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