Results 31 to 40 of about 95,856 (258)
A simulation study demonstrating the importance of large-scale trailing vortices in wake steering [PDF]
Wind Energy Science, 2018 In this paper, we investigate the role of flow structures generated in wind farm control through yaw misalignment. A pair of counter-rotating vortices is shown to be important in deforming the shape of the wake and in explaining the asymmetry of wake ...
P. Fleming +6 more
doaj +1 more source
Quarter-Century Offshore Winds from SSM/I and WRF in the North Sea and South China Sea
Remote Sensing, 2016 We study the wind climate and its long-term variability in the North Sea and South China Sea, areas relevant for offshore wind energy development, using satellite-based wind data, because very few reliable long-term in-situ sea surface wind observations ...
Charlotte Bay Hasager +5 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Blade Surface Pressure Measurements in the Field and Their Usage for Aerodynamic Model Validation
Wind EnergyThis study presents results from a long‐term measurement campaign on a research wind turbine in the field. Pressure measurements are conducted at 25% blade radius over several months.
Erik Fritz +3 more
doaj +1 more source
Data in BriefThis data article presents tensile properties of about 1200 single carbon fibres (PYROFIL™ TRW40 50L) tested at eight different gauge lengths in the range of L0∈ [20; 80] mm with approximately 150 tested fibres for each length.
Rajnish Kumar +3 more
doaj +1 more source
Wake behavior and control: comparison of LES simulations and wind tunnel measurements [PDF]
Wind 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
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Opportunities and Challenges of Advanced Testing Approaches for Multi-Megawatt Wind Turbines
IEEE Open Journal of Power ElectronicsTo 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
Comparison of wind farm control strategies under realistic offshore wind conditions: turbine quantities of interest [PDF]
Wind Energy ScienceWind 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
Wind 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