Results 51 to 60 of about 27,253 (311)

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

Advanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang, Yu Chen, Ezra Sarmiento, Taige Hao, Atsushi Arakaki, Michiko Nemoto, Pablo Zavattieri, David Kisailus   +7 more
wiley   +1 more source

Numerical Methodologies for the Analysis of Horizontal-Axis Floating Offshore Wind Turbines (F-HAWTs): A State-of-the-Art Review

Energies
In recent decades, wind turbine installations have become a popular option to meet the world’s growing demand for energy. Both onshore and offshore wind turbines form pivotal components of the electricity sector.
Naghmeh Akbari Zadeh, Peter Ryan, David M. Kennedy, Fergal O’Rourke   +3 more
doaj   +1 more source

Application of adaptive fuzzy control to suppression vibration response of floating offshore wind turbine

Xibei Gongye Daxue Xuebao, 2021
Floating offshore wind turbine is a complex rigid-flexible coupling nonlinear system, and the accurate dynamic model is difficultly established. Therefore, the wind-wave interference cannot be improved by adopting the conventional control strategy.

doaj   +1 more source

Unsteady aerodynamics of offshore floating wind turbines using free vortex wake model [PDF]

, 2015
Among the offshore floating wind turbine software packs, the blade element momentum theory (BEM) and generalized dynamic wake (GDW) model are widely used.
Barltrop, Nigel, Qi, Qi
core  

Seasonal Correction of Offshore Wind Energy Potential due to Air Density: Case of the Iberian Peninsula [PDF]

, 2019
A constant value of air density based on its annual average value at a given location is commonly used for the computation of the annual energy production in wind industry.
Carreno-Madinabeitia, Sheila, González-Rojí, Santos J., Ibarra-Berastegi, Gabriel, Sáenz, Jon, Ulazia, Alain   +4 more
core   +4 more sources

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

Advanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

Coupled Dynamic Characteristics of a Spar-Type Offshore Floating Two-Bladed Wind Turbine with a Flexible Hub Connection

Journal of Marine Science and Engineering
To reduce manufacturing, transportation, lifting and maintenance costs of increasingly larger and larger floating wind turbines, a Spar-type floating two-bladed wind turbine based on the 5 MW OC3-Hywind floating wind turbine model from the National ...
Zonghao Wu, Kai Wang, Tianyu Jie, Xiaodi Wu   +3 more
doaj   +1 more source

Flow curvature effects on dynamic behaviour of a novel vertical axis tidal current turbine: numerical and experimental analysis [PDF]

, 2005
The paper deals with performances analysis of vertical axis turbine to exploit tidal marine currents. Flow curvature effects on performences of a novel vertical axis turbine have been investuigated. It has been shown that the flow curvature effect allows
COIRO, DOMENICO, DE MARCO, AGOSTINO, F. ,MONTELLA, NICOLOSI, FABRIZIO, S. ,MELONE   +4 more
core   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Experimental Research for Stabilizing Offshore Floating Wind Turbines

Energies, 2019
Floating turbines are attracting increasing interest today. However, the power generation efficiency of a floating turbine is highly dependent on its motion stability in sea water.
Wenxian Yang, Wenye Tian, Ole Hvalbye, Zhike Peng, Kexiang Wei, Xinliang Tian   +5 more
doaj   +1 more source