Results 251 to 260 of about 265,562 (294)

Amphibious Generator via Mechanical Coupling for Versatile Energy Harvesting

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
An amphibious hybrid triboelectric nanogenerator–electromagnetic generator (TENG–EMG) efficiently harvests energy from wind and water. By integrating TENG and EMG units with a gear‐assisted mechanism, it enhances power output and powers small electronic devices.
Chi Zhang   +7 more
wiley   +1 more source

Exploring Salinity Gradient Power in Sweden: Key Factors, Machine Learning Predictive Modeling, and Life Cycle Assessment

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study optimizes salinity gradient power generation using reverse electrodialysis (RED) by analyzing key operational parameters through factorial experiments and machine learning. Life cycle assessment reveals RED environmental impact and sustainability compared to other renewables, offering insights into future material choices and system ...
Younes Mohammadi   +5 more
wiley   +1 more source

Delayed Seasonal RSV Surge Observed During the COVID-19 Pandemic

Pediatrics, 2021
An unexpected positive outcome of the coronavirus disease 2019 pandemic has been the marked decline in illness associated with other respiratory viruses, likely due to the widespread use of masks and social distancing.
R. Agha, J. Avner
semanticscholar   +1 more source

Surge Pricing and Two-Sided Temporal Responses in Ride Hailing

Manufacturing & Service Operations Management, 2020
Problem definition: We investigate surge pricing in ride-hailing platforms from a temporal perspective, highlighting strategic behavior by riders and drivers and that drivers respond to surge pricing much more slowly than riders do.
Bin Hu, Ming Hu, Han Zhu
semanticscholar   +1 more source

Maximum surges in simple surge tanks

Canadian Journal of Civil Engineering, 1977
Maximum upsurges and downsurges in simple surge tanks, resulting from linear decrease or increase in turbine discharge, gate opening, or power output are calculated in turn for simple surge tanks. Tunnel friction and velocity head are considered.
Farouk A. El-Fitiany, Eugen Ruus
openaire   +2 more sources

Surge Arrester Protection and Very Fast Surges

IEEE Power Engineering Review, 1983
The results of this paper suggest that surge arrester protection may not be adequate for very fast rates of rise of lightning currents even considering insulation strength greater than chopped-wave. Additionally, it is shown that prediction of the magnitude and front time of the peak overvoltage is a complex function of lead length, arrester model ...
Hedman, Grant, Wilson, Clayton
openaire   +3 more sources

Surge Pricing and Its Spatial Supply Response

Management Sciences, 2019
We consider the pricing problem faced by a revenue-maximizing platform matching price-sensitive customers to flexible supply units within a geographic area. This can be interpreted as the problem faced in the short term by a ride-hailing platform.
Omar Besbes   +2 more
semanticscholar   +1 more source

To Surge or Not to Surge

2021
This chapter introduces the concept of loss aversion to explain why it took the U.S. government so long to change their strategy. Loss aversion created the desire to preserve perceived gains and resist changes in strategy that could place them at risk – even as the cost of the current policy was high, and its prospects of success were low.
openaire   +1 more source

Stall, Surge, and 75 Years of Research

, 2016
Copyright © 2015 by ASME. Work on rotating stall and its related disturbances has been in progress since the Second World War. During this period, certain ?hot topics?
I. Day
semanticscholar   +1 more source

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