Results 51 to 60 of about 6,155,302 (304)

Opportunities and Challenges of Advanced Testing Approaches for Multi-Megawatt Wind Turbines

open access: yesIEEE Open Journal of Power Electronics
To safely integrate large numbers of wind turbines into the electric power grid, turbines must demonstrate compliance with grid codes and technical guidelines through rigorous testing.
Florian Hans   +4 more
doaj   +1 more source

Validation of RANS-calibrated engineering models and ANN-based surrogate for wind farm flow simulation and layout optimization [PDF]

open access: yesWind Energy Science
Accurate yet efficient wake modeling is essential for wind farm layout optimization (WFLO). Wind turbine wakes are disturbed regions of flow behind a wind turbine, characterized by lower mean wind speeds and higher turbulence, which reduce downstream ...
J. P. Schøler   +4 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Wake behavior and control: comparison of LES simulations and wind tunnel measurements [PDF]

open access: yesWind Energy Science, 2019
This paper applies a large-eddy actuator line approach to the simulation of wind turbine wakes. In addition to normal operating conditions, a specific focus of the paper is on wake manipulation, which is performed here by derating, yaw misalignment and ...
J. Wang   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Validation of Sentinel-1 SAR Wind Products with Measurements from Buoys and Lidars

open access: yesRemote Sensing
Sentinel-1 Synthetic Aperture Radar (SAR) is a multi-purpose monitoring satellite suite that, among many applications, provides sea surface wind speeds at high spatial resolution.
Charlotte Bay Hasager   +3 more
doaj   +1 more source

Effect of drop‐size parameterization and rain amount on blade‐lifetime calculations considering leading‐edge erosion

open access: yesWind Energy, 2022
Leading‐edge erosion (LEE) of wind turbine blades is caused by the impact of particles, for example, raindrops, and leads to a loss in the power production and high maintenance cost.
Anna‐Maria Tilg   +3 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Bidding wind energy under uncertainty [PDF]

open access: yes, 2007
The integration of wind energy into electricity markets implies that the wind energy must commit their production for a given time period. This requires the use of short term wind power prediction tools to prepare the bids for the spot market.
Angarita Márquez, Jorge Luis   +1 more
core   +1 more source

Comparison of wind farm control strategies under realistic offshore wind conditions: turbine quantities of interest [PDF]

open access: yesWind Energy Science
Wind farm flow control is a strategy to increase the efficiency and therefore lower the levelized cost of energy of a wind farm. This is done using turbine settings such as the yaw angle, blade pitch angles, or generator torque to manipulate the flow ...
J. A. Frederik   +5 more
doaj   +1 more source

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