Results 51 to 60 of about 1,193,137 (291)

Blade Surface Pressure Measurements in the Field and Their Usage for Aerodynamic Model Validation

open access: yesWind Energy
This 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

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

Streaming dynamic mode decomposition for short‐term forecasting in wind farms

open access: yesWind Energy, 2022
Forecasting in wind energy is a crucial task to perform adequate wind farm flow control or to participate in the energy market. While many power forecasting methods exist, it is notoriously difficult to capture both short‐ and long‐term variations in the
Jaime Liew   +3 more
doaj   +1 more source

WePWEP: web-based participatory wind energy planning [1]. Background information on wind energy and wind farm siting. [PDF]

open access: yes, 2006
This document has been prepared in the frame of a PhD research project, which aim is to develop and test a learning-enhancing website design to involve the public in spatial planning.
Simao, A.
core  

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Weibull parameters determined from a comprehensive dataset of tensile testing of single carbon fibres

open access: yesData in Brief
This 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

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

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

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +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

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