Results 51 to 60 of about 10,057,169 (215)

A Study on Channel Polling Mechanisms for the MAC Protocols in Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
Most research done on the channel polling mechanisms for WSN MAC protocols has focused on achieving efficiency in terms of optimizing either delay or energy performance.
Shama Siddiqui   +2 more
doaj   +1 more source

Reinforcement learning-based energy storage management in smart grids [PDF]

open access: yesMATEC Web of Conferences
This study investigates the use of reinforcement learning (RL) techniques as a dynamic control mechanism to enhance the management of energy storage in smart grid systems.
Iurevna Usanova Kseniia, Bharadwaj V.Y.
doaj   +1 more source

Extreme value statistics and recurrence intervals of NYMEX energy futures volatility [PDF]

open access: yes, 2012
Energy markets and the associated energy futures markets play a crucial role in global economies. It is of great theoretical and practical significance to gain a deeper understanding of extreme value statistics of the volatility of energy futures traded ...
Wen-Jie Xie   +2 more
semanticscholar   +1 more source

A Mathematical Tightening of Instantaneous Indoor and Outdoor Dry-Bulb and Wet-Bulb Temperature Tolerances

open access: yesEnergies, 2020
To reduce the inaccuracy in energy efficiency evaluation, indoor and outdoor dry-bulb and wet-bulb temperature (D&WBT) tolerances in the currently enacted Chinese room air conditioner (RAC) national standard were tightened into narrower intervals in ...
Xinhao Hu, Zhongbin Zhang, Dandan Cai
doaj   +1 more source

Measurement data‐driven investigation of the actual power grid resilience with increasing renewable energy feed‐in

open access: yesEnergy Science & Engineering, 2022
The transformation of the energy system towards a sustainable reduction of CO2 emissions and the consequently rising contribution of fluctuating energy sources to the German energy system leads to new challenges.
Yannik Schädler   +2 more
doaj   +1 more source

Energy-Efficient LoRaWAN for Industry 4.0 Applications

open access: yesIEEE Transactions on Industrial Informatics, 2020
Thanks to its inherent capabilities (such as fairly long radio coverage with extremely low power consumption), long-range wide area network (LoRaWAN) can support a wide spectrum of low-rate use-cases in Industry 4.0.
H. Sherazi   +3 more
semanticscholar   +1 more source

Algorithms and Adaptation Schemes for a Phytotron Digital Twin Using an Evolutionary Heuristic for Parameter Calibration

open access: yesAgriEngineering
Digital twins (DTs) are increasingly used in controlled-environment agriculture to model microclimates and drive energy-efficient control. However, long-term drift and seasonal variability require continuous recalibration and controller retuning.
Ivan S. Nekrasov   +6 more
doaj   +1 more source

Energy-Efficient Train Operation Optimization Method for Urban Rail Intervals Based on Curve Splicing

open access: yesJournal of Advanced Transportation
Urban rail transit trains consume a significant amount of energy; therefore, reducing the operational energy consumption is of great importance for train energy-saving efforts.
Lianbo Deng   +3 more
doaj   +1 more source

PHOSPHORUS FERTILIZATION AND HARVEST INTERVALS INFLUENCE ENERGETIC AND PHYSICAL PROPERTIES OF BRIQUETTES AND LARGE BRANCHES OF MATE

open access: yesRevista Árvore
In mate crop, the commercial part consists of leaves and thin branches, while the large branches (LB) are considered unused residues and left in the field, although they may have potential for use as energy.
Delmar Santin   +4 more
doaj   +1 more source

Research on Urban Rail Train Energy-saving Control Strategy Based on Genetic Algorithm

open access: yesChengshi guidao jiaotong yanjiu
Objective Urban rail transit generates a considerable amount of energy consumption during operation, with traction energy consumption of train operation offering significant optimization potential.
GAO Qi, LIANG Huadian, QI Lin
doaj   +1 more source

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