Results 71 to 80 of about 8,269,560 (410)
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
Dynamic Stall of a Vertical-Axis Wind Turbine and Its Control Using Plasma Actuation
Energies, 2019 In this paper, a dynamic stall control scheme for vertical-axis wind turbine (VAWT) based on pulsed dielectric-barrier-discharge (DBD) plasma actuation is proposed using computational fluid dynamics (CFD).
Lu Ma +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley +1 more source
A Model-Agnostic Meta-Baseline Method for Few-Shot Fault Diagnosis of Wind Turbines
Sensors, 2022 The technology of fault diagnosis is helpful to improve the reliability of wind turbines, and further reduce the operation and maintenance cost at wind farms. However, in reality, wind turbines are not allowed to operate with faults, so few fault samples
Xiaobo Liu, Wei Teng, Yibing Liu
doaj +1 more source
Progress in Earth and Planetary Science, 2017 In this study, a new method is proposed for the depiction of the atmospheric transportation of the 137Cs emitted from the Fukushima Daiichi Nuclear Power Station accident.
T. Nakajima +10 more
semanticscholar +1 more source
A Station-Hybrid HVDC System Structure and Control Strategies for Cross-Seam Power Transmission
IEEE Transactions on Power Systems, 2021 Cross-seam high voltage DC (HVDC) transmission in the United States can provide an efficient and flexible bulk power delivery highway between the interconnections.
Kaiqi Sun +3 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao +4 more
wiley +1 more source
An improved opportunistic group replacement maintenance strategy for wind turbines
Energy Science & Engineering, 2020 In traditional opportunistic group replacement maintenance (OGRM) strategy for wind turbines, the reliability thresholds of different subassemblies are set the same and its two‐step optimization for maintenance cost is diseconomy.
Zhiyong Ma +4 more
doaj +1 more source
发电技术, 2023 Incorporating phase change material (PCM) with photovoltaic/thermal (PV/T) modules can improve the power generation efficiency of photovoltaic panels by increasing the cooling capacity, and the stored heat can also be used rationally. Based on the design
ABD-HAMID Mohamed +5 more
doaj +1 more source
The impact of station far sidelobes on EoR/CD power spectra [PDF]
arXiv, 2021 Stations of dipole antennas for SKA1-Low will comprise 256 elements spread over an area with a diameter of 38~m. We consider the effect of residual unsubtracted sources well outside of the main beam for differing numbers of unique station configurations, in the Epoch of Reionisation (EoR) and the Cosmic Dawn (CD), both in simulation and with ...
arxiv