Results 51 to 60 of about 909,729 (313)
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Agriculture, 2022 Aiming to solve the problems of easy clogging and high energy consumption of multi-way fertilization devices for liquid manure, a crushing and impurity removal device for liquid manure was designed by combining the physical characteristics of liquid ...
Biao Ma +5 more
doaj +1 more source
The Effect of Blade Angle Deviation on Mixed Inflow Turbine Performances
Applied Sciences, 2022 The choice of blades for mixed turbines is to achieve the required deflection with minimal losses. In addition, it is necessary that the blade functions without a detachment in a wide area outside the nominal operating point of the machine.
Mohammed Amine Chelabi +6 more
doaj +1 more source
On Blade Arrangement for Multi-Blade Rotors
Wind Engineering, 2011 This paper concerns the blades of multi-bladed water-pumping windmills when they have variable mass and centre of mass. The paper explores blade arrangement strategies that will minimize the eccentricity of the rotor centre of mass and hence any rotor-induced vibration.
Hitz, K. L., Wood, D. H.
openaire +2 more sources
Alleviation of unbalanced rotor loads by single blade controllers [PDF]
, 2009 A novel approach to reducing the unbalance rotor loads by pitch control is presented in this paper. Each blade has its own actuator, sensors and controller.
Dominguez, S. +2 more
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Blade by Blade Tip Clearance Measurement [PDF]
International Journal of Rotating Machinery, 2011 This paper describes a capacitance-based tip clearance measurement system which engineers have used in the most demanding turbine test applications. The capacitance probe has survived extended use in a major European gas turbine manufacturer's high-temperature demonstrator unit, where it functioned reliably at a turbine entry temperature in excess of ...
openaire +2 more sources
Small Wind Turbine Blade Design and Optimization
Symmetry, 2019 This work aims at designing and optimizing the performance of a small Horizontal-Axis-Wind-Turbine to obtain a power coefficient (CP) higher than 40% at a low wind speed of 5 m/s.
H. Muhsen, W. Al-Kouz, W. Khan
semanticscholar +1 more source
High resolution computation of the aerodynamics and acoustics of blade vortex interaction [PDF]
, 2008 In the present work, high resolution CFD simulations have been performed on an idealised problem of the interaction of an independently generated vortex with a rotor blade, including a case where the vortex directly impacts on the blade.
Duraisamy, K., Thom, A.
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